CN105584921A - Energy conversation system for elevators - Google Patents
Energy conversation system for elevators Download PDFInfo
- Publication number
- CN105584921A CN105584921A CN201610113332.XA CN201610113332A CN105584921A CN 105584921 A CN105584921 A CN 105584921A CN 201610113332 A CN201610113332 A CN 201610113332A CN 105584921 A CN105584921 A CN 105584921A
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- China
- Prior art keywords
- incubator
- temperature
- elevator
- thermo
- energy saving
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses an energy conversation system for elevators. The energy conversation system comprises a brake resistor, a heat insulation tank, a thermoelectric power generation unit, a DC/DC voltage stabilization unit, a controller, a load and a storage battery, wherein the brake resistor is connected to a direct current bus of a frequency converter, stabilizes the voltage of the direct current bus of the frequency converter in an energy dissipation and heat dissipation mode and is arranged in the heat insulation tank, heat emitted by energy dissipation of the brake resistor is collected in the heat insulation tank, the thermoelectric power generation unit is arranged in the heat insulation tank and is used for converting the heat in the heat insulation tank into electric energy, the DC/DC voltage stabilization unit is connected to the thermoelectric power generation unit, the controller is connected to the DC/DC voltage stabilization unit, and the load and the storage battery are connected to the controller. According to the energy conversation system for the elevators, the feedback electric energy of a traction machine can be fully recycled and reused.
Description
Technical field
The present invention relates to elevator energy-saving field, particularly a kind of energy saving system of elevator.
Background technology
Elevator is a kind of vertical conveyor taking motor as power, for providing very big convenience in people's daily life and work,It has also consumed a large amount of electric energy simultaneously, and according to statistics, elevator power consumption accounts for 17%～25% of building total electricity consumption, annual consumptionElectric energy surpasses 45,000,000,000 kWh.
The rising of elevator and down maneuver realize by elevator traction motor, and from elevator operation principle, elevator existsUnder the up and fully loaded descending operating mode of underloading, hoisting motor, in generating state, produces a large amount of electric energy. In order to keep direct current motherThe relative stability of line voltage, in prior art, generally adopts braking resistor for the processing mode of elevator traction machine feedback electric energyThe method of power consumption,, in frequency changer direct current bus braking resistor in parallel, consumes feedback electric energy with the form of heat. But electricLadder feedback electric energy operating mode is frequent, and braking resistor is generated heat for a long time, and the method not only causes the huge waste of the energy, and causes machineRoom temperature raises, and causes the generation of additional energy consumption (machine room ventilation cooling system energy consumption).
For reclaiming the feedback electric energy of traction machine, studying at present more is electric energy feedback electric power network technique and super capacitor technology, butThere is the shortcoming of harmonic pollution in feedback grid technology, super capacitor also exists technical bottleneck, and the cost of these two kinds of power-saving technologiesHigher, the method that there is no at present obtains general promotion and application.
Summary of the invention
Of the present inventionly be to provide a kind of energy saving system of elevator, this system is the feedback electric energy of recycling traction machine fully.
In order to realize foregoing invention object, the technical solution adopted in the present invention is as follows:
A kind of energy saving system of elevator, comprising: with the braking resistor that the dc bus of frequency converter is connected, and the side that it dispels the heat by power consumptionFormula is stablized the DC bus-bar voltage of frequency converter, and described braking resistor is located in incubator; Incubator, for consuming energy braking resistorThe heat giving out is collected in incubator; Be located at the thermo-electric generation unit in this incubator, for the heat in incubator is turnedChange into electric energy; The DC/DC voltage regulation unit being connected with thermo-electric generation unit, the controller being connected with DC/DC voltage regulation unit, withLoad and battery that controller connects; Described controller for the magnitude of voltage that judges DC/DC voltage regulation unit output whether normallyWithin the scope of value, if so, the voltage of DC/DC voltage regulation unit output offered to load, be charge in batteries simultaneously; If not,Controller and DC/DC voltage regulation unit disconnect, and are load supplying by battery.
As a kind of specific embodiment, this system also comprises: overload resistance, overcurrent protection switch, described overcurrent protection switchComprise temperature sensor, in order to respond to the temperature in incubator and temperature signal is passed to controller;
Described controller also, for according to described temperature signal, judges whether the temperature in described incubator is more than or equal to thermo-electric generation listThe maximum temperature of unit, if not, does not send overcurrent protection switch work order, and overload resistance is not connected with braking resistor; If so,Send overcurrent protection switch work order, control overcurrent protection switch and connect, overload resistance is connected with braking resistor, by consumptionCan be loose can mode make to be incubated the temperature inside the box and decline, further, in the time that insulation the temperature inside the box drops to normal temperature, controller is sent outSend overcurrent protection switch to turn-off instruction, control overcurrent protection switch and turn-off, overload resistance and braking resistor disconnect.
As a kind of specific embodiment, described thermo-electric generation unit comprises multiple temperature-difference power generation modules, described temperature-difference power generation moduleComprise thermo-electric generation sheet, radiating fin, in order to radiating fin is bonded in to the silica gel layer on the cold junction of thermo-electric generation sheet.
Further, described incubator is spliced by polyurethane laminboard; Four side panels and the top panel of this incubator all wrapDraw together the first polyurethane laminboard steel plate, the second polyurethane laminboard steel plate, is located between first, second polyurethane laminboard steel platePolyurethane core, described the first polyurethane laminboard steel plate is positioned at incubator inner side;
On described four side panels and top panel, all offer multiple temperature-difference power generation module installing holes, it runs through the second polyurethane sandwichSlab plate and polyurethane core, described temperature-difference power generation module is inlaid in temperature-difference power generation module installing hole, and the heat of thermo-electric generation sheetEnd compresses with described the first polyurethane laminboard steel plate.
As a kind of specific embodiment, on incubator, offer to maintain pressure balanced pressure inside and outside incubator flatWeighing apparatus hole. Preferably, pressure compensation opening starts the sidewall at incubator.
Further, in described pressure compensation opening, be provided with air-permeative filter net, in order to prevent that the impurity in outside air from entering incubatorIn.
As a kind of specific embodiment, this system also comprises: be located at the ventilated box support at incubator top, described ventilated box props upFrame includes column, is arranged on the polyurethane top board of the end face of ventilated box support, open-porous metal coaming plate, described polyurethane top board,In order to stop the heat from overdraught case. Described open-porous metal coaming plate is fixed on column, by the side of ventilated box supportSeal, in order to the connection line within the scope of protective stent.
Further, be located at ventilated box and prop up the ventilated box of top of the trellis, described overload resistance is located in ventilated box, and described ventilated box is usedIn protection overload resistance and the resistance surrounding air circulation that ensures to transship.
As a kind of specific embodiment, this system also comprises: elevator control cabinet, and described incubator is located at the top of switch board,Described frequency converter is located in elevator control cabinet.
As a kind of specific embodiment, described load be elevator lighting equipment, ventilation equipment etc. other need for elevator workWant the equipment of electricity consumption.
Technical scheme provided by the invention has following beneficial effect:
Energy saving system of elevator of the present invention, by an incubator is set, sheds the braking resistor of access frequency changer direct current busHeat accumulation gets up, and then, by thermo-electric generation unit is set in incubator, utilizes incubator internal-external temperature difference, by the heat of assemblingAmount converts electric energy to, as in the consumers such as illumination, ventilation, ventilation, has realized elevator traction machine feedback for elevator workThe recycling of electric energy, has effectively realized the energy-conservation of elevator.
Brief description of the drawings
Fig. 1 is the electrical block diagram of energy saving system of elevator of the present invention;
Fig. 2 is structure and the principle schematic of energy saving system of elevator of the present invention;
Fig. 3 is the structural representation of incubator side panel of the present invention and top panel;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is temperature-difference power generation module structural representation of the present invention;
Fig. 6 is the structural representation of ventilated box support of the present invention.
Detailed description of the invention
In order to understand fully object of the present invention, feature and effect, below with reference to accompanying drawing to design of the present invention, specifically knotThe technique effect of structure and generation is described further.
As shown in Fig. 1-6, be the energy saving system of elevator of the present embodiment, it comprises: braking resistor 3, incubator 2, thermo-electric generationUnit, the DC/DC voltage regulation unit 10 being connected with thermo-electric generation unit, the controller 11 being connected with DC/DC voltage regulation unit 10,The load 12 being connected with controller 11 and battery 13, also comprise the overcurrent protection switch 8 being connected with braking resistor 3, with mistakeCarry the overload resistance 7 that protection switch 8 connects.
Described braking resistor 3 is connected with the dc bus of frequency converter, the mode of dispelling the heat by power consumption, the direct current mother who keeps frequency converterLine voltage stabilization.
For the heat collection that braking resistor 3 is shed, the present invention is located at braking resistor 3 in incubator 2. Described guarantorIncubator 2 is collected in incubator 3 for the heat giving out that braking resistor 3 is consumed energy. Preferably, described incubator 3 is passableBe spliced by polyurethane laminboard; It should be noted that, incubator can also be made up of other materials, as long as can reach correspondingHeat insulation effect.
To use polyurethane laminboard to be spliced to form incubator as example: the incubator 3 of the present embodiment comprises four side panels and oneTop panel, described side panel and top panel include the first polyurethane laminboard steel plate 23, the second polyurethane laminboard steel plates 24,Be located at the polyurethane core 25 of 24 of the first polyurethane laminboard steel plates 23, the second polyurethane laminboard steel plate, and describedOne polyurethane laminboard steel plate 23 is positioned at incubator 2 inner sides.
On described side panel and top panel, all offer multiple temperature-difference power generation module installing holes 21, it runs through second from outside to insidePolyurethane laminboard steel plate 24 and polyurethane core 25, in other words, polyurethane laminboard includes three layers, in incubatorSide, toward the skin of incubator 2, is the first polyurethane laminboard steel plate 23, polyurethane core 25, the second polyurethane laminboard successivelySteel plate 24; Temperature-difference power generation module installing hole 21 penetrates the second polyurethane laminboard steel plate 24, polyurethane core 25, sees through the temperature differenceElectricity generation module installing hole 21, can see from incubator 2 outsides the first polyurethane laminboard steel plate 23. Preferably, described multiple temperaturePoor electricity generation module installing hole 21 is evenly distributed on side panel and top panel, and further, matrix distribution is on side panel and top panel.
Described thermo-electric generation unit is located in this incubator 2, for the heat in incubator 2 is changed into electric energy; Wherein, instituteState thermo-electric generation unit and comprise multiple temperature-difference power generation modules 4, each temperature-difference power generation module 4 links together, and forms thermo-electric generationUnit, it should be noted that, only shows one of them temperature-difference power generation module in Fig. 1,2. In incubator 2, also offerWire casing 26, the connection between each temperature-difference power generation module 4 can be positioned in wire casing 26, then seals by wiring duct cover 22.
Wherein, described temperature-difference power generation module 4 comprises thermo-electric generation sheet 41, radiating fin 44, is connected to thermo-electric generation sheet 41 andSilica gel layer 42 between radiating fin 44, described thermo-electric generation sheet 41 comprises cold junction and hot junction, wherein, cold junction and silica gel layer 42Bonding, radiating fin 44 is bonded on the cold junction of thermo-electric generation sheet 41.
In the present embodiment, temperature-difference power generation module 4 is inlaid in temperature-difference power generation module installing hole 21, wherein, thermo-electric generation sheet41 hot junction and described the first polyurethane laminboard steel plate 23 compress, and offer thermo-electric generation sheet fixing hole 43 on radiating fin 44,Securing member is passed to this fixing hole, so that temperature-difference power generation module 4 is fixed on the second polyurethane laminboard steel plate 24. So,Can make in the internal-external temperature difference environment of temperature-difference power generation module in internal layer high temperature, outer low temperature, thereby the heat in incubator is transformedBecome electric energy.
In order to maintain the inside and outside pressure balance of incubator 2, the present embodiment has been offered pressure compensation opening 9 on the sidewall of incubator 2,And in described pressure compensation opening, be provided with air-permeative filter net, in order to prevent that the impurity in outside air from entering in incubator 2, protectHold in incubator clean.
Because elevator is in operation, start and stop operating mode change at random is frequent, and vertical range ability change at random is frequent, directly causes systemThe heat energy change at random that moving resistance distributes is frequent, and the thermal change amplitude of distributing is larger. In other words, in incubatorVariations in temperature is frequent, and when different operating mode, temperature difference is large, in the time of high temperature, even exceedes the maximum temperature of thermo-electric generation sheet,Cause eventually whole energy conserving system to lose efficacy.
For this reason, in the present embodiment, be also designed with overcurrent protection switch 8 and overload resistance 7, described overcurrent protection switch 8 comprisesTemperature sensor, in order to respond to the temperature in incubator 2 and temperature signal passed to controller 11; Described controller is according to instituteState temperature signal, judge whether the temperature in described incubator 2 is more than or equal to the maximum temperature of thermo-electric generation unit, if not,Do not send overcurrent protection switch work order, overload resistance 7 is not connected with braking resistor 3; If so, sending overload protection opensClose work order, control overcurrent protection switch 8 and connect, overload resistance 7 is connected with braking resistor 3, by the side of the loose energy that consumes energyFormula consumes unnecessary feedback electric energy by the heat radiation of overload resistance, the interior temperature of incubator 2 is declined, and further, works as incubatorWhen 2 interior temperature drop to normal temperature, controller 11 sends overcurrent protection switch and turn-offs instruction, controls overcurrent protection switch 8 and closesDisconnected, overload resistance 7 disconnects with braking resistor 3. Wherein, the maximum temperature of thermo-electric generation unit, normal temperature can be according to the temperature differenceThe material that generator unit is selected, the heatproof of line etc. are learnt, in the reasonable scope, set voluntarily.
The designed temperature-difference power generation module of energy conserving system of the present invention, transship resistance, be provided with temperature sensor overcurrent protection switch,Controller cooperating, can mask by electric loading or the disadvantageous too high voltages of battery or mistake low-voltage, ensures energy-conservation systemThe safety of system, the quality of the guarantee electric energy that produces. Make energy conserving system of the present invention stronger to voltage range adaptability, can ensure instituteThe quality that produces electric energy, can improve utilization rate of electrical.
In thermo-electric generation unit, thermal power transfer is become after electric energy, because elevator working conditions change is frequent, the electrical potential difference size of its generation alsoDifferent, electrical potential difference change greatly and change unstable, for this part electric energy being used, in the present embodiment by the temperature differenceThe output of generator unit is connected with DC/DC voltage regulation unit 10, by DC/DC voltage regulation unit 10 by defeated thermo-electric generation unitThe voltage transitions going out becomes stable voltage. Further, DC/DC voltage regulation unit 10 is connected to controller 11, described controller11 voltages that can export DC/DC voltage regulation unit 10 are monitored, and judge that the magnitude of voltage that DC/DC voltage regulation unit 10 is exported isNo in range of normal value, the voltage of if so, DC/DC voltage regulation unit 10 being exported offers load 12, simultaneously for electric power storageCharge in pond 13; If not, controller 11 disconnects with DC/DC voltage regulation unit 10, is supplied for load 12 by battery 13Electricity. Wherein, described load 12 can be elevator lighting equipment, ventilation equipment etc. other need establishing of electricity consumption for elevator workStandby.
In the present embodiment, this energy saving system of elevator also comprises elevator control cabinet 1, and described incubator 2 is located at the top of switch board 1,Described frequency converter is located in elevator control cabinet 1.
Be located at the ventilated box support 5 at incubator 2 tops, described ventilated box support 5 includes column 52, be arranged on ventilated box props upThe polyurethane top board 51 of the end face of frame, open-porous metal coaming plate 53, described polyurethane top board 51, in order to stop from overdraughtThe heat of case 6. Wherein, described open-porous metal coaming plate 53 is fixed on column 52, by four side envelopes of ventilated box supportLive, in order to the connection line within the scope of protective stent.
Be located at the ventilated box 6 at ventilated box support 5 tops, described overload resistance 7 is located in ventilated box 6, for protecting overload resistanceWith the circulation of guarantee overload resistance surrounding air.
Energy saving system of elevator of the present invention, by an incubator is set, sheds the braking resistor of access frequency changer direct current busHeat accumulation gets up, and then, by thermo-electric generation unit is set in incubator, utilizes incubator internal-external temperature difference, by the heat of assemblingAmount converts electric energy to, as in the consumers such as illumination, ventilation, ventilation, has realized elevator traction machine feedback for elevator workThe recycling of electric energy, has effectively realized the energy-conservation of elevator.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, therefore allDepart from the content of technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, etc.With changing and modifying, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. an energy saving system of elevator, is characterized in that, comprising:
With the braking resistor that the dc bus of frequency converter is connected, its mode of dispelling the heat by power consumption is stablized the dc bus electricity of frequency converterPress, described braking resistor is located in incubator;
Incubator, is collected in incubator for the heat giving out that braking resistor is consumed energy;
Be located at the thermo-electric generation unit in this incubator, for the heat in incubator is changed into electric energy;
The DC/DC voltage regulation unit being connected with thermo-electric generation unit, controller and the controller being connected with DC/DC voltage regulation unitThe load and the battery that connect; Whether the magnitude of voltage that described controller is used for judging the output of DC/DC voltage regulation unit is in range of normal valueIn, if so, the voltage of DC/DC voltage regulation unit output offered to load, be charge in batteries simultaneously; If not, controlDevice and DC/DC voltage regulation unit disconnect, and are load supplying by battery.
2. energy saving system of elevator according to claim 1, is characterized in that, this system also comprises:
Overload resistance, overcurrent protection switch, described overcurrent protection switch comprises temperature sensor, in order to respond to the temperature in incubatorAnd temperature signal is passed to controller;
Described controller also, for according to described temperature signal, judges whether the temperature in described incubator is more than or equal to thermo-electric generation listThe maximum temperature of unit, if not, does not send overcurrent protection switch work order, and overload resistance is not connected with braking resistor; If so,Send overcurrent protection switch work order, control overcurrent protection switch and connect, overload resistance is connected with braking resistor, by consumptionCan be loose can mode make to be incubated the temperature inside the box and decline, further, in the time that insulation the temperature inside the box drops to normal temperature, controller is sent outSend overcurrent protection switch to turn-off instruction, control overcurrent protection switch and turn-off, overload resistance and braking resistor disconnect.
3. energy saving system of elevator according to claim 1 and 2, is characterized in that:
Described thermo-electric generation unit comprises multiple temperature-difference power generation modules, and described temperature-difference power generation module comprises thermo-electric generation sheet, radiating finSheet, in order to radiating fin is bonded in to the silica gel layer on the cold junction of thermo-electric generation sheet.
4. energy saving system of elevator according to claim 3, is characterized in that:
Described incubator is spliced by polyurethane laminboard;
The side panel of this incubator and top panel include the first polyurethane laminboard steel plate, and the second polyurethane laminboard steel plate, establishesPolyurethane core between first, second polyurethane laminboard steel plate, described the first polyurethane laminboard steel plate is positioned at incubatorSide;
On described side panel and top panel, all offer multiple temperature-difference power generation module installing holes, it runs through the second polyurethane sandwich slabPlate and polyurethane core, described temperature-difference power generation module is inlaid in temperature-difference power generation module installing hole, and the hot junction of thermo-electric generation sheet withDescribed the first polyurethane laminboard steel plate compresses.
5. energy saving system of elevator according to claim 4, is characterized in that:
Upper at incubator, offers to maintain the pressure balanced pressure compensation opening inside and outside incubator.
6. energy saving system of elevator according to claim 5, is characterized in that:
In described pressure compensation opening, be provided with air-permeative filter net.
7. energy saving system of elevator according to claim 1 and 2, is characterized in that, this system also comprises:
Be located at the ventilated box support at incubator top, described ventilated box support includes column, is arranged on the end face of ventilated box supportPolyurethane top board, the open-porous metal coaming plate in order to the side of ventilated box support is sealed, described open-porous metal coaming plate is fixed on verticalOn post.
8. energy saving system of elevator according to claim 2, is characterized in that, this system also comprises:
Be located at the ventilated box that ventilated box props up top of the trellis, described overload resistance is located in ventilated box.
9. energy saving system of elevator according to claim 1 and 2, is characterized in that, this system also comprises:
Elevator control cabinet, described incubator is located at the top of switch board, and described frequency converter is located in elevator control cabinet.
10. energy saving system of elevator according to claim 1, is characterized in that:
Described load is elevator lighting equipment, ventilation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113332.XA CN105584921B (en) | 2016-02-29 | 2016-02-29 | A kind of energy saving system of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113332.XA CN105584921B (en) | 2016-02-29 | 2016-02-29 | A kind of energy saving system of elevator |
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| CN105584921A true CN105584921A (en) | 2016-05-18 |
| CN105584921B CN105584921B (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610113332.XA Active CN105584921B (en) | 2016-02-29 | 2016-02-29 | A kind of energy saving system of elevator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834583A (en) * | 2017-11-08 | 2018-03-23 | 广东亚太通力电梯有限公司 | A kind of elevator energy retracting device |
| CN108091815A (en) * | 2018-01-19 | 2018-05-29 | 孔祥贵 | A kind of automatic current limiting temperature controlled radiating battery |
| CN108750838A (en) * | 2018-08-24 | 2018-11-06 | 重庆迈高电梯有限公司 | A kind of elevator control system |
| CN109607354A (en) * | 2019-01-28 | 2019-04-12 | 张云天 | A kind of low temperature resistant Steel belt elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107834583A (en) * | 2017-11-08 | 2018-03-23 | 广东亚太通力电梯有限公司 | A kind of elevator energy retracting device |
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| CN108091815A (en) * | 2018-01-19 | 2018-05-29 | 孔祥贵 | A kind of automatic current limiting temperature controlled radiating battery |
| CN108750838A (en) * | 2018-08-24 | 2018-11-06 | 重庆迈高电梯有限公司 | A kind of elevator control system |
| CN109607354A (en) * | 2019-01-28 | 2019-04-12 | 张云天 | A kind of low temperature resistant Steel belt elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105584921B (en) | 2017-12-22 |
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