CN103207147A - Intrinsically safe smog sensor for mine - Google Patents
Intrinsically safe smog sensor for mine Download PDFInfo
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- CN103207147A CN103207147A CN2013100192045A CN201310019204A CN103207147A CN 103207147 A CN103207147 A CN 103207147A CN 2013100192045 A CN2013100192045 A CN 2013100192045A CN 201310019204 A CN201310019204 A CN 201310019204A CN 103207147 A CN103207147 A CN 103207147A
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Abstract
The invention provides an intrinsically safe smog sensor for a mine. The smog sensor comprises an upper cover, a pressure plate, a base plate, a sealing assembly, an installation seat, a smog cover, a line outgoing mouth and a circuit unit, wherein the circuit unit comprises a gas-sensitive sensing element, a photoelectric sensing element, an alarm indicator lamp and a circuit board, a gas-sensitive detection signal processing circuit, a photoelectric detection signal processing circuit, a one-chip microcomputer and an alarm signal output circuit are integrated on the circuit board, the gas-sensitive sensing element, the photoelectric sensing element, the alarm indicator lamp and the circuit board are fixedly mounted on the installation seat, the installation seat and the line outgoing mouth are fixedly mounted on the base plate, the upper cover is covered over the upper part of the installation seat and located at the upper end of the base plate, the pressure plate is sleeved on and buckles the bottom end of the upper cover and is in fixed connection with the base plate through a sealing ring, and the smog cover is in threaded connection with the lower part of the installation seat. The intrinsically safe smog sensor provided by the invention greatly improves timeliness and accuracy of smog alarming in an underground coal mine, elevates capability of preventing accidents and the level of safety of the underground coal mine and effectively adapts to severe usage environments like plenty of dust and dripping and leaking of water in the underground coal mine.
Description
Technical field
The present invention relates to sensor field, be specifically related to a kind of sensor that is applicable to the on-the-spot smog of detection of the essential safety of using in the inferior industrial and mineral environment of coal mine.
Background technology
At present, underground mine use in the sensor that detects smog common electro-optical pickoff and air-sensitive formula sensor arranged, these two kinds of sensor application all have its weak point separately in colliery downhole detection smog: in the more environment of traditional electro-optical pickoff dust under coal mine, disturbed by dust and produce misoperation, thereby the stability of its work and reliability are not enough; Its probe of the more widely used air-sensitive formula of another kind sensor because its detection to gas does not have selectivity, in use is subjected to the interference of other gases such as gas, carbon monoxide for the broad spectrum type probe easily.According to field experiment, under the high slightly situation of gas density, adopt air-sensitive formula sensor, it reaches 40% to False Rate that smog produces, and this concentration of invar when high the security system in colliery started power-off protection, when it is reported to the police, be not de-energized; The photoelectric technology sensor at dust excessive or sensor dust stratification the smog false alarm rate to real is very high more for a long time; Also paid pilot production ionic formula sensor, but this type sensor is again because there is radiation in its probe, thereby limited its application.
Summary of the invention
The objective of the invention is: overcome the deficiencies in the prior art, the advantage that the quick formula sensor of a kind of gas collection and electro-optical pickoff be provided is in one and overcome the high mine intrinsic safety smoke transducer of deficiency separately, strong interference immunity, functional reliability of this amphitypy sensor.
Technical scheme of the present invention is: mine intrinsic safety smoke transducer of the present invention, and its design feature is: comprise loam cake, platen, chassis, seal assembly, mount pad, fume hood, outlet mouth and circuit arrangement; Above-mentioned circuit arrangement comprises gas-sensitive sensing element, photo electric sensitive element, alarm lamp and circuit board; Circuit board is provided with air-sensitive detectable signal treatment circuit, photodetection signal processing circuit, single-chip microcomputer and alerting signal output circuit; Above-mentioned seal assembly comprises first O-ring seal;
The gas-sensitive sensing element of above-mentioned circuit arrangement, photo electric sensitive element, alarm lamp and circuit board all are fixedly mounted on the mount pad; Mount pad and outlet mouth are fixedly mounted on the chassis respectively; Loam cake is fastened on the upper surface on chassis and covers the top of mount pad; The platen socket fastens behind the bottom of loam cake with after first O-ring seal sealing of chassis by seal assembly fixedlys connected; Fume hood is connected with the lower thread of mount pad;
Air-sensitive detectable signal treatment circuit and photodetection signal processing circuit on the circuit board of above-mentioned circuit arrangement are provided with signal input part and signal output part respectively; Single-chip microcomputer is provided with first signal input part, secondary signal input end and control signal output terminal; The alerting signal output circuit is provided with the control signal input end, alarm lamp is lighted control end and alarm signal output ends; Gas-sensitive sensing element and photosensitive sensor all have signal output part;
The signal input part of air-sensitive detectable signal treatment circuit is electrically connected with the signal output part of gas-sensitive sensing element; The signal input part of photodetection signal processing circuit is electrically connected with the signal output part of photosensitive sensor; First signal input part of single-chip microcomputer is electrically connected with the signal output part of air-sensitive detectable signal treatment circuit; The secondary signal input end of single-chip microcomputer is electrically connected with the signal output part of photodetection signal processing circuit; The control signal input end of alerting signal output circuit is electrically connected with the control signal output terminal of single-chip microcomputer; The alarm lamp of alerting signal output circuit is lighted control end and is electrically connected with the positive pole of alarm lamp; The alarm signal output ends of alerting signal output circuit is exported from the outlet mouth by lead.
Further scheme is: above-mentioned loam cake comprises cover body, hasp and peg; Cover body comprises top board, cylinder part and the bottom that is integral connection; Top board is horizontally disposed plate body spare; Cylinder part is the cylindrical plate body spare of hollow; The bottom is made of curved portions and bottom one, and the bottom level of bottom is outwards opened, and the bottom is connected with the lower end one of cylinder part by the upper end of its curved portions; Cylinder part is connected with the top board one by its upper end; Hasp is provided with identical 2, is weldingly fixed on about 2 hasps divide on the upper surface of top board of cover body; The two ends of peg are fixed in 2 hasps movably.
Further scheme is: above-mentioned platen comprises annulus portion and the shirt rim that is integral connection; The annulus portion of platen is annular plate body spare, and is positioned at the top, and the slightly larger in diameter of the middle circular hole of annulus portion is in the external diameter of the cylinder part of the cover body of loam cake, less than the external diameter of the bottom of the bottom of cover body; The shirt rim of platen is the oblate cylindricality plate body spare of hollow, and the shirt rim is connected with the periphery one of annulus portion with its upper end; Evenly be provided with 5 attachment screw holes of up/down perforation in the annulus portion of platen all around according to annulus.
Further scheme is: above-mentioned chassis is circular plate body spare; The internal diameter of the external diameter on chassis and the shirt rim of platen adapts; The chassis is provided with mount pad mounting hole, warning lampshade mounting hole, outlet mouth mounting hole, outlet mouth fixing screw hole, attachment screw hole and mount pad fixing screw hole; The mount pad mounting hole is arranged on the center on chassis; Warning lampshade mounting hole is provided with 2,2 warning lampshade mounting holes be symmetricly set on the chassis about to the axis on, and be divided into the both sides, front and back of mount pad mounting hole; Outlet mouth mounting hole is arranged on the left side on the sagittal axis on chassis; Outlet mouth fixing screw hole is provided with 4,4 outlet mouth fixing screw holes be symmetricly set on outlet mouth mounting hole around; The attachment screw hole is provided with 5, and 5 attachment screw holes are uniformly set on the periphery on chassis 3; The mount pad fixing screw hole is provided with 4 altogether, 2 warning lampshade mounting holes each side arrange 1.
Further scheme is: above-mentioned seal assembly also comprises second O-ring seal, the 3rd O-ring seal and sensing element wire guide sealing gasket; The 3rd O-ring seal is provided with 2;
Above-mentioned mount pad comprises upper plate, fume hood connecting portion, sensing element installing plate, wire guide sealing gasket pressing plate and warning lampshade;
Above-mentioned upper plate be about to horizontally disposed round plastic plate body spare, upper plate is provided with circuit board mounting screw post, sensing element wire guide, alarm lamp mounting hole and outlet mouth mounting hole; Circuit board mounting screw post is provided with 4 and raise up by the upper surface of upper plate altogether, is arranged on the left side of upper plate before and after 2 circuit board mounting screw posts wherein divide; Before and after dividing, other 2 circuit board mounting screw posts are arranged on the middle part, right side of upper plate; The sensing element wire guide is arranged on the centre of upper plate; The alarm lamp mounting hole be arranged on upper plate about to the axis on the both sides, front and back; The fume hood connecting portion is the right cylinder of hollow, and the internal diameter of the mount pad mounting hole on its external diameter and above-mentioned chassis adapts; The outer wall of fume hood connecting portion is provided with the external thread that connects usefulness; The fume hood connecting portion is integral with the lower surface of upper plate by its upper surface and is connected; The sensing element installing plate is fixedly mounted on the fume hood connecting portion and surrounds on the lower surface of interior upper plate; Wire guide sealing gasket pressing plate is arranged on the top of the sensing element wire guide of upper plate; Wire guide sealing gasket pressing plate is fixedlyed connected with upper plate after pushing down the sensing element wire guide sealing gasket of seal assembly; Alarm lamp is covered with 2, and the warning lampshade is bonding by the lower surface of the upper plate at the alarm lamp mounting hole place on its upper end and the upper plate, passes the warning lampshade mounting hole on chassis behind the 3rd O-ring seal of warning lampshade by seal assembly downwards.
Further scheme also has: above-mentioned fume hood comprises cover body and the base plate that is integral connection; Cover body is the truncated cone-shaped plate body spare of hollow, and the diameter of the upper port of cover body is greater than the diameter of lower port; Cover body is connected with the periphery one of base plate by its lower end; Cover body is provided with 4 to 30 oblique grooves; The upper end inwall of cover body is provided with installs the internal thread that connects usefulness.
The present invention has positive effect: (1) the present invention organically combines by air-sensitive being surveyed smog and photodetection smog, overcome gas sensing property acquisition sensor in the prior art because of to the insensitivity of dust to failing to report of causing of the tetchiness of gas, wrong report and photo acquisition sensor because of to the insensitivity of gas and be subject to dust and disturb the wrong report that causes, the defective failed to report, improve promptness and the accuracy of smog alarm under the coal mine significantly, thereby improved ability and the level of coal mine downhole safety accident prevention significantly.(2) design that cooperatively interacts between the structure of the present invention by loam cake, pressing plate, chassis 3 with install O-ring seal additional and be connected, and oblique groove is set on the cover body of fume hood, can adapting to effectively under the coal mine drips from the top leaks and abominable environment for use such as dust is many.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view;
Fig. 3 is the upward view of Fig. 1;
Fig. 4 is for removing the vertical view behind the loam cake among Fig. 1;
Fig. 5 is for removing the vertical view behind the circuit board among Fig. 4;
Fig. 6 is the structural representation on chassis among Fig. 2, has also shown the matching relationship of the platen among itself and Fig. 2 among the figure;
Fig. 7 is the theory diagram of circuit arrangement of the present invention.
Reference numeral in the above-mentioned accompanying drawing is as follows:
Loam cake 1, cover body 11, top board 11-1, cylinder part 11-2, bottom 11-3, hasp 12, peg 13,
Seal assembly 4, the first O-ring seals 41, the second O-ring seals 42, the three O-ring seals 43, sensing element wire guide sealing gasket 44,
Circuit arrangement 8, gas-sensitive sensing element 81, photo electric sensitive element 82, alarm lamp 83,
Embodiment
(embodiment 1)
See Fig. 1, Fig. 2 and Fig. 7, the mine intrinsic safety smoke transducer of present embodiment is made up of loam cake 1, platen 2, chassis 3, seal assembly 4, mount pad 5, fume hood 6, outlet mouth 7 and circuit arrangement 8.Circuit arrangement 8 is made up of gas-sensitive sensing element 81, photo electric sensitive element 82, alarm lamp 83 and circuit board 84, and circuit board 84 is provided with air-sensitive detectable signal treatment circuit 84-1, photodetection signal processing circuit 84-2, single-chip microcomputer 84-3 and alerting signal output circuit 84-4.
Loam cake 1 is made up of cover body 11, hasp 12 and peg 13.The material of cover body 11 is corrosion resistant plate.Cover body 11 is by all-in-one-piece top board 11-1, cylinder part 11-2 and bottom 11-3 form from top to bottom.Top board 11-1 is horizontally disposed circular plate body; Cylinder part 11-2 basic configuration is the cylindrical plate body spare of hollow; Bottom 11-3 is made of curved portions and bottom one, and the bottom level of bottom is outwards opened, and bottom 11-3 is connected with the lower end one of cylinder part 11-2 by the upper end of its curved portions; Cylinder part 11-2 is connected with top board 11-1 one by its upper end.Hasp 12 is provided with identical 2, and 2 hasps are weldingly fixed on about 12 minutes on the upper surface of top board 11-1 of cover body 11.Peg 13 is formed by the stainless steel wire bending, and the two ends of peg 13 are fixed in 2 hasps 12 movably.
The material of platen 2 is corrosion resistant plate.Platen 2 is made up of annulus portion 21 and shirt rim 22 that one connects.The annulus portion 21 of platen 2 is annular plate body spare, and is positioned at the top, and the internal diameter of the middle circular hole of annulus portion 21 is slightly larger than the external diameter of cylinder part 11-2 of the cover body 11 of loam cake 1, less than the external diameter of the bottom of the bottom 11-3 of cover body 11.Evenly be provided with 5 attachment screw hole 21-1 of up/down perforation in the annulus portion 21 of platen 2 all around according to annulus.The shirt rim 22 of platen 2 is connected with the periphery one of annulus portion 21 with its top for the oblate cylindricality plate body spare of the hollow of vertical setting, shirt rim 22.
See Fig. 2, Fig. 3 and Fig. 6, the material on chassis 3 is corrosion resistant plate.Chassis 3 is circular plate body spare, and the internal diameter of the shirt rim 22 of the external diameter on chassis 3 and platen 2 adapts.Chassis 3 is provided with mount pad mounting hole 31, warning lampshade mounting hole 32, outlet mouth mounting hole 33, outlet mouth fixing screw hole 33-1, attachment screw hole 34 and mount pad fixing screw hole 35.Each mounting hole and screw hole are the manhole of upward and downward.
Mount pad mounting hole 31 is arranged on the center on chassis 3.Warning lampshade mounting hole 32 is provided with 2,2 warning lampshade mounting holes 32 be symmetricly set on chassis 3 about to the axis on, and be divided into the both sides, front and back of mount pad mounting hole 31.Outlet mouth mounting hole 33 is arranged on the left side of the sagittal axis on chassis 3; Outlet mouth fixing screw hole 33-1 is provided with 4,4 outlet mouth fixing screw hole 33-1 be symmetricly set on outlet mouth mounting hole 33 around.Attachment screw hole 34 is provided with 5, and 5 attachment screw holes 34 are uniformly set on the periphery on chassis 3, matches with 5 attachment screw hole 21-1 in the annulus portion 21 of platen 2 when be used for installing.Mount pad fixing screw hole 35 is provided with 4 altogether, and these 4 mount pad fixing screw holes 35 each side arrange 12 warning lampshade mounting holes 32.
See Fig. 2, seal assembly 4 comprises first O-ring seal 41, second O-ring seal 42, the 3rd O-ring seal 43 and sensing element wire guide sealing gasket 44.The material of seal assembly 4 is rubber parts.The 3rd O-ring seal 43 arranges 2.
See Fig. 2 and Fig. 5, mount pad 5 is made up of upper plate 51, fume hood connecting portion 52, sensing element installing plate 53, wire guide sealing gasket pressing plate 54 and warning lampshade 55.Upper plate 51 be about to horizontally disposed round plastic plate body spare, upper plate 51 is provided with circuit board mounting screw post 51-1, sensing element wire guide 51-2, alarm lamp mounting hole 51-3 and outlet mouth mounting hole, circuit board mounting screw post 51-1 is provided with 4 and raise up by the upper surface of upper plate 51 altogether, is arranged on the left side of upper plate 51 before and after 2 circuit board mounting screw post 51-1 wherein divide; Before and after dividing, other 2 circuit board mounting screw post 51-1 are arranged on the middle part, right side of upper plate 51.Sensing element wire guide 51-2 is arranged on the centre of upper plate 51, is the through hole of upward and downward; Alarm lamp mounting hole 51-3 be arranged on upper plate 51 about to the axis on the both sides, front and back.Fume hood connecting portion 52 is the right cylinder of hollow, and the internal diameter of the mount pad mounting hole 31 on its external diameter and aforesaid chassis 3 adapts, and the outer wall of fume hood connecting portion 52 is provided with the external thread that connects usefulness; Fume hood connecting portion 52 is integral with the lower surface of upper plate 51 by its upper surface and is connected.Sensing element installing plate 53 be front and back to horizontally disposed plate body, sensing element installing plate 53 is fixedly mounted on the lower surface of fume hood connecting portion 52 upper plate 51 in surrounding by screw.Wire guide sealing gasket pressing plate 54 is working of plastics, is arranged on the top of the sensing element wire guide 51-2 of upper plate 51, and during installation, wire guide sealing gasket pressing plate 54 is pushed down sensing element wire guide sealing gasket 44 backs of seal assembly 4 and used screw to fixedly connected with upper plate 51.Warning lampshade 55 is provided with 2, warning lampshade 55 is the transparent organic glass cover, warning lampshade 55 is bonding by the lower surface of the upper plate 51 at the alarm lamp mounting hole 51-3 place on its upper end and the upper plate 51, during installation, pass the warning lampshade mounting hole (32) on chassis (3) behind the 3rd O-ring seal (43) of warning lampshade (55) by seal assembly (4) downwards.
See Fig. 1, Fig. 2 and Fig. 3, the material of fume hood 6 is corrosion resistant plate.Fume hood 6 is made up of all-in-one-piece cover body 61 and base plate 62.Cover body 61 is the truncated cone-shaped plate body spare of hollow, and the diameter of the upper port of cover body 61 is greater than the diameter of lower port.Cover body 61 is connected with the periphery one of base plate 62 by its lower end; Cover body 61 is provided with 4 to 30 oblique groove 61-1, and oblique groove 61-1 is used for sensing element and monitors.The upper end inwall of cover body 61 is provided with installs the internal thread that connects usefulness.
Preferred four-core Aviation Connector in outlet mouth 7 present embodiments.Outlet mouth 7 is used for the lead turnover of circuit arrangement 8.
During installation, earlier at second O-ring seal 42 of the upper ends seal assembly 4 of the mount pad mounting hole 31 on chassis 3 and respectively place the 3rd O-ring seal 43 of a seal assembly 4 in the upper end of 2 warning lampshade mounting holes 32 after, after mount pad 5 being passed the mount pad mounting hole 31 on aforesaid chassis 3 from the top down by its fume hood connecting portion 52 and making 2 warning lampshades 55 of mount pad 5 pass 2 warning lampshade mounting holes 32 on chassis 3,4 screws of 4 mount pad fixing screw holes, 35 usefulness by chassis 3 are fixed on mount pad 5 on the upper surface on chassis 3; Outlet mouth 7 passes the outlet mouth mounting hole 33 on chassis 3 and the outlet mouth mounting hole of mount pad 5 from bottom to top successively, and the outlet mouth fixing screw hole 33-1 by chassis 3 is fixed on the chassis 3 with 4 screws;
The gas-sensitive sensing element 81 of circuit arrangement 8 and photo electric sensitive element 82 all are fixedly mounted on the sensing element installing plate 53 of mount pad 5, and are positioned at the below of sensing element installing plate 53; 2 alarm lamps 83 of circuit arrangement 8 are installed in respectively in 2 warning lampshades 55 of mount pad 5; The circuit board 84 of circuit arrangement 8 is fixedly mounted on by screw on 4 circuit board mounting screw post 51-1 on the upper plate 51 of mount pad 5;
The internal thread of fume hood 6 by its cover body 61 upper ends screws mutually with the external thread of the fume hood connecting portion 52 of mount pad 5, and fume hood 6 is threaded with mount pad 5;
Loam cake 1 is joined by first O-ring seal 41 of seal assembly 4 and the upper surface on chassis 3 by the lower surface of the bottom of the bottom 11-3 of its cover body 11; Platen 2 from the top of loam cake 1 down casing pressure be fastened on the bottom of bottom 11-3 of loam cake 1, after the 5 attachment screw holes 34 on 5 attachment screw hole 21-1 in the annulus portion 21 of platen 2 and chassis 3 are corresponding one by one, mouthful screw is fixedly connected with putting down, thereby finishes the installation of the mine intrinsic safety smoke transducer of present embodiment.
See Fig. 7, air-sensitive detectable signal treatment circuit 84-1 and photodetection signal processing circuit 84-2 on the circuit board 84 of circuit arrangement 8 are provided with signal input part and signal output part respectively; Single-chip microcomputer 84-3 is provided with first signal input part, secondary signal input end and control signal output terminal; Alerting signal output circuit 84-4 is provided with the control signal input end, alarm lamp is lighted control end and alarm signal output ends; Gas-sensitive sensing element 81 and the photosensitive sensor 82 of circuit arrangement 8 all have signal output part.
The signal input part of the air-sensitive detectable signal treatment circuit 84-1 of circuit arrangement 8 is electrically connected with the signal output part of gas-sensitive sensing element 81; The signal input part of photodetection signal processing circuit 84-2 is electrically connected with the signal output part of photosensitive sensor 82; First signal input part of single-chip microcomputer 84-3 is electrically connected with the signal output part of air-sensitive detectable signal treatment circuit 84-1; The secondary signal input end of single-chip microcomputer 84-3 is electrically connected with the signal output part of photodetection signal processing circuit 84-2; The control signal input end of alerting signal output circuit 84-4 is electrically connected with the control signal output terminal of single-chip microcomputer 84-3; The alarm lamp of alerting signal output circuit 84-4 is lighted control end and is electrically connected the minus earth of alarm lamp 83 with the positive pole of 2 alarm lamps 83; The alarm signal output ends of alerting signal output circuit 84-4 is exported from outlet mouth 7 by lead.
In the present embodiment, the gas-sensitive sensing element 81 preferred models of circuit arrangement 8 are the gas sensor of MQ2, and photo electric sensitive element 82 adopts from general labyrinth, photoelectricity darkroom and the infrared emission receiving circuit of design to be made; The model that single-chip microcomputer 84-3 preferably carries the A/D translation function is the single-chip microcomputer of PIC2480; 2 alarm lamps 83 are preferred light emitting diode all.
The principle of work of the mine intrinsic safety smoke transducer of present embodiment and the course of work such as following:
The mine intrinsic safety smoke transducer of present embodiment, it utilizes photo electric sensitive element of the prior art to the insensitivity of gas with to the characteristics of the susceptibility of smog, and gas-sensitive sensing element is to the susceptibility of gas with to the insensitivity characteristics of dust, both are organically combined, make the combined probe that has gas-sensitive sensing element 81 and photo electric sensitive element 82 simultaneously; Be transferred to after wherein the signal that produces of photo electric sensitive element 82 is handled through photodetection signal processing circuit 84-2 that single-chip microcomputer 84-3 gathers and after mould/number conversion is digital quantity, handled by single-chip microcomputer 84-3; Single-chip microcomputer 84-3 carries out corresponding judgement according to the power that photo electric sensitive element 82 is gathered signal to the concentration of smog under the mine; Smokescope in 81 pairs of environment of gas-sensitive sensing element detects, and the concentration of smog is reflected on the voltage signal of Acquisition Circuit and after air-sensitive detectable signal treatment circuit 84-1 handles signal is sent to single-chip microcomputer 84-3; Single-chip microcomputer 84-3 carries out respective handling according to the signal that receives: the single-chip microcomputer 84-3 basis alarming value that smog takes place that whether has of program setting in advance compares judgement, when single-chip microcomputer 84-3 relatively after, the signal of two-way input is during all above preset value, single-chip microcomputer 84-3 judges that dangerous smog takes place, at this moment, single-chip microcomputer 84-3 is to alerting signal output circuit 84-4 output alarm signal, after the signal of alerting signal output circuit 84-4 is handled, one road output alarm control signal is lighted 2 alarm lamps 83, and the alerting signal receiving end that export to as mine safety control center on another road carries out corresponding emergency processing.
The mine intrinsic safety smoke transducer of present embodiment, organically combine by air-sensitive being surveyed smog and photodetection smog, overcome the wrong report that the gas sensing property acquisition sensor causes because of the insensitivity to dust in the prior art, failed to report and the wrong report that the photo acquisition sensor causes because of the insensitivity to gas, the defective of failing to report, improve promptness and the accuracy of smog alarm under the coal mine significantly, thereby improved ability and the level of coal mine downhole safety accident prevention significantly.
Simultaneously, the mine intrinsic safety smoke transducer of present embodiment, by loam cake 1, pressing plate 2 and chassis 3 and other structures between the design that cooperatively interacts with install O-ring seal additional and be connected, and the oblique groove 61-1 that arranges on the cover body 61 of fume hood 6, can adapting to effectively under the coal mine drips from the top leaks and abominable environment for use such as dust is many.
Above embodiment is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique is under the situation that does not break away from the spirit and scope of the present invention; can also make various conversion and obtain the corresponding technical scheme that is equal to variation, so all technical schemes that are equal to all should be included into scope of patent protection of the present invention.
Claims (6)
1. a mine intrinsic safety smoke transducer is characterized in that: comprise loam cake (1), platen (2), chassis (3), seal assembly (4), mount pad (5), fume hood (6), outlet mouth (7) and circuit arrangement (8); Described circuit arrangement (8) comprises gas-sensitive sensing element (81), photo electric sensitive element (82), alarm lamp (83) and circuit board (84); Circuit board (84) is provided with air-sensitive detectable signal treatment circuit (84-1), photodetection signal processing circuit (84-2), single-chip microcomputer (84-3) and alerting signal output circuit (84-4); Described seal assembly (4) comprises first O-ring seal (41);
The gas-sensitive sensing element (81) of described circuit arrangement (8), photo electric sensitive element (82), alarm lamp (83) and circuit board (84) all are fixedly mounted on the mount pad (5); Mount pad (5) and outlet mouth (7) are fixedly mounted on respectively on the chassis (3); Loam cake (1) is fastened on the upper surface of chassis (3) and covers the top of mount pad (5); Platen (2) socket fastens behind the bottom of loam cake (1) with after chassis (3) first O-ring seal (41) sealing by seal assembly (4) fixedlys connected; Fume hood (6) is connected with the lower thread of mount pad (5);
Air-sensitive detectable signal treatment circuit (84-1) and photodetection signal processing circuit (84-2) on the circuit board (84) of described circuit arrangement (8) are provided with signal input part and signal output part respectively; Single-chip microcomputer (84-3) is provided with first signal input part, secondary signal input end and control signal output terminal; Alerting signal output circuit (84-4) is provided with the control signal input end, alarm lamp is lighted control end and alarm signal output ends; Gas-sensitive sensing element (81) and photosensitive sensor (82) all have signal output part;
The signal input part of air-sensitive detectable signal treatment circuit (84-1) is electrically connected with the signal output part of gas-sensitive sensing element (81); The signal input part of photodetection signal processing circuit (84-2) is electrically connected with the signal output part of photosensitive sensor (82); First signal input part of single-chip microcomputer (84-3) is electrically connected with the signal output part of air-sensitive detectable signal treatment circuit (84-1); The secondary signal input end of single-chip microcomputer (84-3) is electrically connected with the signal output part of photodetection signal processing circuit (84-2); The control signal input end of alerting signal output circuit (84-4) is electrically connected with the control signal output terminal of single-chip microcomputer (84-3); The alarm lamp of alerting signal output circuit (84-4) is lighted control end and is electrically connected with the positive pole of alarm lamp (83); The alarm signal output ends of alerting signal output circuit (84-4) is exported from outlet mouth (7) by lead.
2. mine intrinsic safety smoke transducer according to claim 1, it is characterized in that: described loam cake (1) comprises cover body (11), hasp (12) and peg (13); Cover body (11) comprises the top board (11-1) that is integral connection, cylinder part (11-2) and bottom (11-3); Top board (11-1) is horizontally disposed plate body spare; Cylinder part (11-2) is the cylindrical plate body spare of hollow; Bottom (11-3) is made of curved portions and bottom one, and the bottom level of bottom is outwards opened, and bottom (11-3) is connected with the lower end one of cylinder part (11-2) by the upper end of its curved portions; Cylinder part (11-2) is connected with top board (11-1) one by its upper end; Hasp (12) is provided with identical 2, is weldingly fixed on about 2 hasps (12) divide on the upper surface of top board (11-1) of cover body (11); The two ends of peg (13) are fixed in 2 hasps (12) movably.
3. mine intrinsic safety smoke transducer according to claim 2, it is characterized in that: described platen (2) comprises annulus portion (21) and shirt rim (22) that are integral connection; The annulus portion (21) of platen (2) is annular plate body spare, and be positioned at the top, the slightly larger in diameter of the middle circular hole of annulus portion (21) is in the external diameter of the cylinder part (11-2) of the cover body (11) of loam cake (1), less than the external diameter of the bottom of the bottom (11-3) of cover body (11); The shirt rim (22) of platen (2) is the oblate cylindricality plate body spare of hollow, and shirt rim (22) are connected with the periphery one of annulus portion (21) with its upper end; The annulus portion (21) of platen (2) goes up according to 5 the attachment screw holes (21-1) that evenly are provided with up/down perforation around the annulus.
4. mine intrinsic safety smoke transducer according to claim 3 is characterized in that: described chassis (3) are circular plate body spare; The internal diameter of the shirt rim (22) of the external diameter on chassis (3) and platen (2) adapts; Chassis (3) is provided with mount pad mounting hole (31), warning lampshade mounting hole (32), outlet mouth mounting hole (33), outlet mouth fixing screw hole (33-1), attachment screw hole (34) and mount pad fixing screw hole (35); Mount pad mounting hole (31) is arranged on the center of chassis (3); Warning lampshade mounting hole (32) is provided with 2,2 warning lampshade mounting holes (32) be symmetricly set on chassis (3) about to the axis on, and be divided into the both sides, front and back of mount pad mounting hole (31); Outlet mouth mounting hole (33) is arranged on the left side on the sagittal axis on chassis (3); Outlet mouth fixing screw hole (33-1) is provided with 4,4 outlet mouth fixing screw holes (33-1) be symmetricly set on outlet mouth mounting hole (33) around; Attachment screw hole (34) is provided with 5, and 5 attachment screw holes (34) are uniformly set on the periphery on chassis 3; Mount pad fixing screw hole (35) is provided with 4 altogether, 2 warning lampshade mounting holes (32) each side arrange 1.
5. mine intrinsic safety smoke transducer according to claim 4, it is characterized in that: described seal assembly (4) also comprises second O-ring seal (42), the 3rd O-ring seal (43) and sensing element wire guide sealing gasket (44); The 3rd O-ring seal (43) is provided with 2;
Described mount pad (5) comprises upper plate (51), fume hood connecting portion (52), sensing element installing plate (53), wire guide sealing gasket pressing plate (54) and warning lampshade (55);
Described upper plate (51) be about to horizontally disposed round plastic plate body spare, upper plate (51) is provided with circuit board mounting screw post (51-1), sensing element wire guide (51-2), alarm lamp mounting hole (51-3) and outlet mouth mounting hole; Circuit board mounting screw post (51-1) is provided with 4 and raise up by the upper surface of upper plate (51) altogether, is arranged on the left side of upper plate (51) before and after 2 circuit board mounting screw posts (51-1) wherein divide; Before and after dividing, other 2 circuit board mounting screw posts (51-1) are arranged on the middle part, right side of upper plate (51); Sensing element wire guide (51-2) is arranged on the centre of upper plate (51); Alarm lamp mounting hole (51-3) be arranged on upper plate (51) about to the axis on the both sides, front and back; Fume hood connecting portion (52) is the right cylinder of hollow, and the internal diameter of the mount pad mounting hole (31) of its external diameter and described chassis (3) adapts; The outer wall of fume hood connecting portion (52) is provided with the external thread that connects usefulness; Fume hood connecting portion (52) is integral with the lower surface of upper plate (51) by its upper surface and is connected; Sensing element installing plate (53) is fixedly mounted on fume hood connecting portion (52) and surrounds on the lower surface of interior upper plate (51); Wire guide sealing gasket pressing plate (54) is arranged on the top of the sensing element wire guide (51-2) of upper plate (51); Fixedly connected with upper plate (51) in sensing element wire guide sealing gasket (44) back that wire guide sealing gasket pressing plate (54) is pushed down seal assembly (4); Warning lampshade (55) is provided with 2, warning lampshade (55) is bonding by the lower surface of the upper plate (51) that its upper end and the alarm lamp mounting hole (51-3) on the upper plate (51) are located, and passes the warning lampshade mounting hole (32) on chassis (3) behind the 3rd O-ring seal (43) of warning lampshade (55) by seal assembly (4) downwards.
6. mine intrinsic safety smoke transducer according to claim 5, it is characterized in that: described fume hood (6) comprises cover body (61) and the base plate (62) that is integral connection; Cover body (61) is the truncated cone-shaped plate body spare of hollow, and the diameter of the upper port of cover body (61) is greater than the diameter of lower port; Cover body (61) is connected by the periphery one of its lower end with base plate (62); Cover body (61) is provided with 4 to 30 oblique grooves (61-1); The upper end inwall of cover body (61) is provided with installs the internal thread that connects usefulness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019204.5A CN103207147B (en) | 2013-01-18 | 2013-01-18 | Mine intrinsic safety smoke transducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019204.5A CN103207147B (en) | 2013-01-18 | 2013-01-18 | Mine intrinsic safety smoke transducer |
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| CN103207147A true CN103207147A (en) | 2013-07-17 |
| CN103207147B CN103207147B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310019204.5A Expired - Fee Related CN103207147B (en) | 2013-01-18 | 2013-01-18 | Mine intrinsic safety smoke transducer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104698127A (en) * | 2013-12-09 | 2015-06-10 | 瑞士西门子有限公司 | Smoke detection unit containing redundant detectors |
| CN110047242A (en) * | 2019-06-04 | 2019-07-23 | 宿州中矿三杰科技有限公司 | A kind of mine smoke sensor |
| CN110702854A (en) * | 2019-09-19 | 2020-01-17 | 武汉慧联无限科技有限公司 | Smoke sensor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103207147B (en) | 2015-09-02 |
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