CN102155427B - Fill port for a self-priming centrifugal pump, with safety device - Google Patents
Fill port for a self-priming centrifugal pump, with safety device Download PDFInfo
- Publication number
- CN102155427B CN102155427B CN2011100871757A CN201110087175A CN102155427B CN 102155427 B CN102155427 B CN 102155427B CN 2011100871757 A CN2011100871757 A CN 2011100871757A CN 201110087175 A CN201110087175 A CN 201110087175A CN 102155427 B CN102155427 B CN 102155427B
- Authority
- CN
- China
- Prior art keywords
- filler
- pump
- lid
- self
- folder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000945 filler Substances 0.000 claims description 89
- 238000012423 maintenance Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 15
- 238000009434 installation Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000032484 Accidental exposure to product Diseases 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 231100000818 accidental exposure Toxicity 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/001—Preventing vapour lock
- F04D9/002—Preventing vapour lock by means in the very pump
- F04D9/003—Preventing vapour lock by means in the very pump separating and removing the vapour
Abstract
A safety cover for the fill port of a self-primer pump is structured to improve the seal between the fill port cover and the fill port in the pump casing to thereby control the release of steam from the pump, and includes an improved sealing band between the fill port and fill port cover, an improved fill port cover design and an improved retaining clamp design.
Description
The application is that to be called " filler that is used for self-priming centrifugal pump that has safety installations ", international filing date be that August 10, international application no in 2006 are to be for PCT/US2006/031205, national applications number dividing an application of 200689935466.9 application for a patent for invention to name.
The cross reference of related application
The application is a non-provisional application, enjoys the preference of the temporary patent application No.60/707097 that submitted on August 10th, 2005.
Technical field
The present invention relates to a kind of self-priming centrifugal pump, particularly relate to a kind of filler assembly with improved safeguard construction.
Background technique
Self-priming centrifugal pump is well-known, usually is used for the industry that need handle the fluid that contains (entrained) solid.Self-priming pump also is known as transh pump, it is characterized in that having a housing, is holding suction chamber in it and by wall or the separated separation chamber of plenum.The impeller that is arranged in the spiral section of pump receives fluid from suction chamber, and through centrifugal action fluid is sent to the separation chamber, in the separation chamber fluid is discharged from outlet at last.
In the working procedure of self-priming pump, fluid enters into the suction chamber of pump through inlet.Safety check is configured to abut against inlet, thereby when pump work, safety check stays open; But when pump quits work, safety check will abut against inlet in case fluid flows out from the suction chamber of pump.If safety check stays open or be not positioned to and abut against inlet just, fluid is interrupted up to siphonage or siphon leg in will being entered the room by the siphon resorption.Therefore, the fluid level in the suction chamber is very low, makes once more pump inhale very difficulty.Therefore, need guarantee that fluid remains in the suction chamber.
Self-priming pump is usually configured to this fluid is remained in the pump so that starting filling once more when needed.But o lot of reasons all might cause low fluid level, comprises fluid inverted-siphon from pump.If fluid level is low excessively, pump will can not start (that is, being pumped into fluid in the pump through suction pipe), and the pump-absorb action of pump will become steam with the water that is present in the pump.
Usually self-priming pump is configured to have filler, is positioned near the pump case or the top of pump case as the one of which, so just can allow fluid is added in the pump.But the inside that enters into pump through filler is quite dangerous, particularly when pump can not start and pump in water when becoming steam.Usually because steam can spill from filler, the lid of therefore dismantling filler will cause being badly damaged.Therefore, the lid of having attempted to develop a kind of safe filler is to reduce contingency and infringement.Although live through these effort, because the design problem of this safety head causes still continuing to occur many infringements.
Therefore, a kind of lid of the safe filler that is used for self-priming pump is provided advantageously at present, damages and make the steam accidental exposure that is present in the pump under described condition preventing.
Summary of the invention
According to the present invention; A kind of safety head that is used for the filler of self-priming pump is provided; It has improved the sealing between the filler in filler lid and the pump case, and has guaranteed when released vapour from pump, filler lid to be fixed on the filler, thereby can avoid infringement.
Filler lid of the present invention and safety installations generally include lid, the maintenance folder of the filler of canned pump and are arranged on the anchor bolt that keeps between folder and the filler lid, and these all are well-known traditionally.But filler lid of the present invention is configured to have the depression that is used for holding the anchor bolt end, to guarantee when under certain pressure, from pump case, filler lid being remained on the appropriate position above the filler during released vapour.
This safety installations also comprises the seal band that is arranged between filler and the filling oil cover.Seal band can be configured to O shape ring, and it makes the steam that discharges from filler be improved.Optimum ground; O shape ring can teflon coated
, or handles in addition or processed by the material that for seal band, has inadhesion character.
The maintenance folder of safety installations of the present invention also is formed at its two ends and has groove or depression, and the head with fillister head screw when keeping folder to be connected with pump case with box lunch is received in the maintenance folder.The head of screw in said depression clamping, and prevents to keep folder and screw or filler lid to unclamp.
Three safety elements of the present invention can use jointly or use with various compound modes, so that make the filler lid that is provided be configured to guarantee with the speed more controlled than existing system steam to be discharged from pump.Said safety element also guaranteed when from pump, discharging high pressure steam, to make filler lid do not blown off pump case filler or suffer damage.
Description of drawings
In the accompanying drawings, show the optimal mode that is commonly referred to be embodiment of the present invention:
Fig. 1 is the upper view of existing technology self-priming pump, and filler has been shown among the figure, and the decomposition view of the filler lid of traditional existing pump;
Fig. 2 is the view of filler lid shown in Figure 1 when being set at the appropriate position on the filler;
Fig. 3 is the planimetric map of filler shown in Figure 2;
Fig. 4 is the view on a self-priming pump top, shows the decomposition view of filler of the present invention and safety installations;
Fig. 5 is the view of filler of the present invention and safety installations when safety head is set at the appropriate position on the filler; With
Fig. 6 is the filler cut open along Fig. 5 center line 6-6 and the viewgraph of cross-section of safety installations.
Embodiment
Through with filler lid traditional shown in Fig. 1-3 to filler safety installations of the present invention recently is described best.Especially, Fig. 1 shows the top of pump case 10, and it has near the filler 12 that is arranged on the pump discharge 14.The closed cap 16 of existing filler 12 comprises a smooth packing ring 18, and the opening of its size and filler 12 matees basically, and is gone up in position by filler lid 20 maintenances.One keeps folder 22 to be arranged on the filler lid 20, and is threadedly connected to tapped hole 28,30 and is fixed on the pump case 10 through square head bolt 24,26, and the tapped hole 28,30 in the pump case 10 described here lays respectively at filler 12 both sides.This maintenance folder 22 is formed at its two ends and has U-shaped opening 32,33 respectively, in order to receive bolt 24,26.
One L shaped anchor bolt 34 passes center hole 36 and is threaded in the maintenance folder 22.Preferably as shown in Figure 2, filler lid 20 has been shown among the figure has been fixed on the position of sealing filler 12, the end face 40 that abuts against filler lid 20 is aimed at the terminal 38 of anchor bolt 34.Fastening the making that abuts against the anchor bolt 34 of filler lid 20 forms pressure to guarantee filler 12 water-stop on every side on smooth packing ring 18.
Further as shown in Figure 3, in existing fill port systems, keep the fixing of folder 22 through fastening square head bolt 24,26 realizations, thereby between the outermost corner of two bolt 24,26 heads, have the distance B of a maximum.Therefore, existing maintenance folder 22 terminal that is formed at its U-shaped opening 32,33 has a protruding shoulder 42,44 respectively.The shoulder 42,44 of said convexity possibly prevent to keep folder 22 to unclamp from the bottom of bolt 24,26 heads, unclamps about 1/8 inch up to anchor bolt 34.But, should be noted that in the existing pump fastening needs of bolt 24,26 bolt 24,26 of screwing screws out tapped hole 28,30 separately up to their bottom, this just causes square head not to be adjusted to ultimate range D.Further regulate bolt 24,26 and will cause each the screw thread fracture in the bolt to realize suitable distance B, and/or be on shoulder 42,44, to produce overvoltage, this will cause potential seepage.
The element of above-mentioned existing fill port closure 16 trends towards filler lid 20 is kept going up in position, and prevents in pump, to exist the harm that steam discharges from filler 20 under the situation of steam.In operating process, unclamp (promptly 1/8 inch) anchor bolt 34 a little and all steam that come from filler 12 are discharged to allow filler lid 20 to open a little.But, observed existing plain washer 18 and made more steam to discharge from filler 12.The result is when filler lid 20 unclamps, and the steam release pressure that passes the space between packing ring and the filler lid 20 causes filler lid 20 to be abandoned and away from filler 12, thereby causes suffering damage.
Therefore, although keep the shoulder 42,44 on the folder 22 to trend towards contacting bolt 24; 26 head to be preventing to keep to press from both sides 22 unclamp, but has been found that unclamping anchor bolt 34 not only causes keeping folder 22 rotations, and causes keeping folder 22 to tilt; This is enough to make wherein, and at least one bolt 24,26 unclamps with its shoulder 42,44 separately; Cause the danger that keeps folder 22 and bolt 24,26 to unclamp.Keep folder 22 to unclamp by this way also causing under the situation that vapor pressure increases the deserted of filler lid 20 to unclamp.
In filler lid of the present invention and safety installations, shown in Fig. 4-6, solve these problems through multiple structural change.At first, the present invention has adopted seal band 48, and it is configured to control better the release of steam from filler.Preferably is, seal band 48 is O shape rings 50, and it is set at around the filler 12, and is kept going up in position by filler lid 52.The verified flat washer than available technology adopting, O shape ring seal band 50 utilize the pressure demand that has reduced to provide more comprehensively water-stop.
O shape ring 50 can also be coated or handle in addition or process for example special fluorine
(
) by the material that for seal band 48, has non-adhesiveness matter.The structure of seal band 48 and inadhesion characteristic discharge steam and provide better control, thereby when unclamping filler lid 52 a little, all steam that are present in the pump will discharge with more stable flow velocity and distribution, reduce impaired possibility whereby.
Secondly, filler lid 52 of the present invention has and is formed on the depression 54 of covering 52 end faces 56, in order to the terminal 58 that holds anchor bolt 60.As shown in Figure 6, when anchor bolt 60 pressed from both sides 62 center hole 64 through maintenance, the terminal 58 of anchor bolt 60 was positioned in the depression 54 of filler 52.This layout has guaranteed that when anchor bolt 60 unclamps filler lid 52 still remains on the filler 12 and abuts against seal band 48, and this is because the depression 54 of filler lid 52 can not be removed the terminal 58 of (clear) anchor bolt 60.Therefore, prevented that filler lid 52 from being blown off by filler 12 when steam spills under pressure.Anchor bolt 60 is positioned at also have been guaranteed in the depression 54 of filler lid 52 and can apply bigger pressure to O shape ring 50 through filler lid 52.
In maintenance folder 62 of the present invention, use fillister head screw 66,68 will keep folder 62 to be connected on the pump case 10.Preferably as shown in Figure 6, keep folder 62 to have depression 70,72 at its two ends, the head 74,76 of fillister head screw 66,68 is assemblied in the said depression.This design feature has been guaranteed when unclamping anchor bolt 60, keeps folder 62 can or not unclamp from disengaging on the fillister head screw 66,68, and this is to make maintenance folder 62 can't rotate or slight inclination in the depression because screw 66,68 heads 74,76 are placed in.In addition, this design feature has guaranteed to keep folder 62 can or not unclamp from the fillister head screw disengaging, removes from the bottom of screw 66,68 heads up to the top 78 that keeps folder 62.
The structural element of the improved filler lid of the present invention and safety installations all guaranteed effectively when steam when filler discharges, filler lid 52 still remains on the appropriate position on the filler.Can adopt any improved structural element described here separately; 62 structures are pressed from both sides in the filler lid 52 and the improved maintenance that comprise improved seal band 48, have a depression 54, thereby perhaps make above-mentioned improved structural element and other combination of structural elements use the Safety performance of improvement self-priming pump.Can introduce or adopt element structure of the present invention or structural change filler lid and safety installations to adapt to specific needs or occasion.Therefore, the specific detail of the filler lid element that has safety installations of institute's reference here is only as embodiment, rather than the conduct restriction.
Claims (4)
1. filler security component that is used for self-priming pump comprises:
Be arranged for the filler lid on the filler that is positioned at self-priming pump;
Be used to be positioned at the seal band between said filler lid and the filler; And
Keep folder; It has and is used for holding screw and makes said screw through wherein two relative holes, and each said hole all has with it depression accordingly, is used for holding taking the lead the head of screw; The said screw of taking the lead passes relative said hole, so that said maintenance clamping is scheduled on the pump case.
2. filler security component according to claim 1, it further comprises the anchor bolt that can pass said maintenance folder location, wherein said filler lid has the depression that is formed on its top, in order to hold and to contact the terminal of said anchor bolt.
3. filler security component according to claim 1, wherein said seal band are O shape rings.
4. filler security component according to claim 3, wherein said O shape ring has nonadherent characteristic, is adhered to filler so that prevent said O shape ring.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70709705P | 2005-08-10 | 2005-08-10 | |
| US60/707,097 | 2005-08-10 | ||
| US11/501,326 | 2006-08-09 | ||
| US11/501,326 US20070071619A1 (en) | 2005-08-10 | 2006-08-09 | Fill port for a self-priming centrifugal pump, with safety device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800354669A Division CN101495757B (en) | 2005-08-10 | 2006-08-10 | Fill port for a self-priming centrifugal pump, with safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102155427A CN102155427A (en) | 2011-08-17 |
| CN102155427B true CN102155427B (en) | 2012-11-14 |
Family
ID=37758162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100871757A Expired - Fee Related CN102155427B (en) | 2005-08-10 | 2006-08-10 | Fill port for a self-priming centrifugal pump, with safety device |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20070071619A1 (en) |
| EP (1) | EP1915534A2 (en) |
| CN (1) | CN102155427B (en) |
| AU (1) | AU2006279949B2 (en) |
| BR (1) | BRPI0614332A2 (en) |
| CA (1) | CA2618419C (en) |
| WO (1) | WO2007021845A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013166071A1 (en) * | 2012-04-30 | 2013-11-07 | Remy Technologies, Llc | Systems and methods for covering access ports |
| US9809181B2 (en) | 2012-04-30 | 2017-11-07 | Borgwarner Inc. | Systems and methods for covering access ports |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3302664A (en) * | 1964-04-07 | 1967-02-07 | Coleman Co | Safety cap assembly for pressurized founts of gasoline burning devices |
| US4702277A (en) * | 1985-05-01 | 1987-10-27 | Veriflo Corporation | Cylinder valve-regulator |
| US5160269A (en) * | 1991-12-19 | 1992-11-03 | Precision Interconnect Corporation | Hydrostatic connector for flex circuits |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US522137A (en) * | 1894-06-26 | Cearles clement walker | ||
| US1689643A (en) * | 1923-07-02 | 1928-10-30 | Alfred J Rudolph | Holding device |
| US2811879A (en) * | 1956-07-09 | 1957-11-05 | James H Rust | Fixture clamp |
| US3045861A (en) * | 1959-12-01 | 1962-07-24 | Wesley E Dieter | Closure for evacuated and/or pressurized vessel |
| US4915253A (en) * | 1986-05-01 | 1990-04-10 | Sharp Bruce R | Removable center-point compression sealing lid member |
| US4877100A (en) * | 1987-09-16 | 1989-10-31 | Jidosha Kiki Co., Ltd. | Hydraulic reaction force apparatus for power steering system |
| US5329971A (en) * | 1992-08-04 | 1994-07-19 | Condon Duane R | Closet flange test plug |
-
2006
- 2006-08-09 US US11/501,326 patent/US20070071619A1/en not_active Abandoned
- 2006-08-10 CA CA2618419A patent/CA2618419C/en not_active Expired - Fee Related
- 2006-08-10 BR BRPI0614332-6A patent/BRPI0614332A2/en not_active IP Right Cessation
- 2006-08-10 CN CN2011100871757A patent/CN102155427B/en not_active Expired - Fee Related
- 2006-08-10 EP EP06801149A patent/EP1915534A2/en not_active Withdrawn
- 2006-08-10 AU AU2006279949A patent/AU2006279949B2/en not_active Ceased
- 2006-08-10 WO PCT/US2006/031205 patent/WO2007021845A2/en active Search and Examination
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3302664A (en) * | 1964-04-07 | 1967-02-07 | Coleman Co | Safety cap assembly for pressurized founts of gasoline burning devices |
| US4702277A (en) * | 1985-05-01 | 1987-10-27 | Veriflo Corporation | Cylinder valve-regulator |
| US5160269A (en) * | 1991-12-19 | 1992-11-03 | Precision Interconnect Corporation | Hydrostatic connector for flex circuits |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1915534A2 (en) | 2008-04-30 |
| CN102155427A (en) | 2011-08-17 |
| CA2618419C (en) | 2012-11-27 |
| BRPI0614332A2 (en) | 2011-03-22 |
| WO2007021845A3 (en) | 2007-11-01 |
| CA2618419A1 (en) | 2007-02-22 |
| WO2007021845A2 (en) | 2007-02-22 |
| AU2006279949A1 (en) | 2007-02-22 |
| AU2006279949B2 (en) | 2012-11-15 |
| US20070071619A1 (en) | 2007-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20130810 |