CN203009193U - Temperature difference power generation device - Google Patents
Temperature difference power generation device Download PDFInfo
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- CN203009193U CN203009193U CN 201220486559 CN201220486559U CN203009193U CN 203009193 U CN203009193 U CN 203009193U CN 201220486559 CN201220486559 CN 201220486559 CN 201220486559 U CN201220486559 U CN 201220486559U CN 203009193 U CN203009193 U CN 203009193U
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- cryogenic fluid
- working medium
- temperature difference
- generation device
- heat exchanger
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Abstract
The utility model discloses a temperature difference power generation device which is provided with a heat exchanger, a double-threaded-rod expansion engine, a condenser, a generator, a low-temperature working medium circulation pump and an electric working medium pump. The heat exchanger comprises a heat source interface, a vaporized low-temperature working medium outlet and a liquid low-temperature working medium inlet. The double-threaded-rod expansion engine and a vaporized low-temperature working medium inlet are connected. The condenser is provided with the vaporized low-temperature working medium inlet which is connected with the double-threaded-rod expansion engine, a liquid low-temperature working medium outlet and a circulating cooling water interface. The generator is driven by the double-threaded-rod expansion engine and driving belt in a matched mode. The inlet end of the low-temperature working medium circulation pump and the liquid low-temperature working medium outlet are connected. The electric working medium pump is arranged between the liquid low-temperature working medium outlet and the liquid low-temperature working medium inlet. According to the temperature difference power generation device, low-temperature working media are repeatedly and circularly utilized, so that utilizing of waste temperature difference energy can be effectively achieved, a waste hot source in an existing industrial enterprise can be effectively utilized, and a hot source conversion rate is high. By means of the device, self-circulation islanding power generating is achieved, and the adaptability to the waste hot source can be improved. Furthermore, the device can still reach stable output performance under the condition that the waste hot source is not stable.
Description
Technical field
The utility model relates to energy field, especially relates to the device that a kind of industrial field reclaims the thermal gradient energy generating.
Background technique
The energy is the mankind's indispensable resources of depending on for existence and development, particularly due to discovery and the exploitation of electricity, greatly promoting the progress of human civilization, from then on the mankind's production and life more and more be unable to do without electricity, and short of electricity and power tense occur at any time in industrial developed regions.Except the non-renewable senior resources such as coal, oil, rock gas can be generated electricity, the rudimentary energy generating that how fully to develop recoverable had just become one of important topic of world research.
But, the enterprise of the industrial fields such as existing central air-conditioner, iron and steel, cement, stone refinery usually have a large amount of outwards dischargings higher than the middle low-temperature flue gas of 60 ℃, the used heat resources such as waste steam, spent hot water.For example generally just there are following four used heat resources in iron and steel enterprise: the steam that the exhaust hood on the waste gas residual heat on the belt-cooling machine of iron making and sintering machine, steelmaking converter top produces, waste gas residual heat and the blast furnace slag quenching water heat energy of steel rolling heating furnace.Also having the hot water temperature of geothermal resources also below 200 ℃, is more the low-temperature water heating of 60 ℃ of left and right.During the energy that these used heat resources are carried belongs to, low temperature exhaust heat, generally utilization is not high at present, and some also must adopt blower or water spraying cooling in order to reach emission standard, not only wasted the energy, also must certain electric energy and the water resources of additional waste.Because these used heat resources generally belong to long-time discharging or generation type, it is a very objectively energy in fact that accumulation is got up, and is necessary very much it is recycled.
The model utility content
The purpose of this utility model is exactly to provide a kind of and can utilize discarded middle low temperature heat energy to carry out thermo-electric generation in order to address the above problem, have that energy transition rate is high, applicability good, stable output middle low temperature heat energy temperature difference electricity generation device.
To achieve these goals, the utility model adopts following technological scheme:
A kind of temperature difference electricity generation device is characterized in that, has:
Convert the cryogenic fluid of liquid state the cryogenic fluid steam of high-pressure gaseous to by the heat that absorbs thermal source and export the heat exchanger of twin-screw expansion motive power machine to, it has thermal source interface, the outlet of steam state cryogenic fluid and liquid cryogenic fluid entrance;
The twin-screw expansion motive power machine, it is connected with the steam state cryogenic fluid outlet of heat exchanger;
Condenser, it has the steam state cryogenic fluid entrance that is connected with the twin-screw expansion motive power machine, the outlet of liquid cryogenic fluid, recirculated cooling water interface;
By generator and the cryogenic fluid recycle pump that the twin-screw expansion motive power machine coordinates drivign belt to drive, the entry end of cryogenic fluid recycle pump is connected to the liquid cryogenic fluid outlet of condenser;
As the electronic working medium pump of temperature difference electricity generation device starter motor, it is located between the cryogenic fluid entrance of liquid cryogenic fluid outlet of condenser and heat exchanger.
Preferably, described cryogenic fluid recycle pump, electronic working medium pump are shielded twin-screw rod pump.
Preferably, described cryogenic fluid is hfc-245fa.
Preferably, described heat exchanger is plate type heat exchanger.
Preferably, described condenser is closed shell and tube condenser.
the working principle of this device is: described heat exchanger converts the cryogenic fluid of liquid state the cryogenic fluid steam of high-pressure gaseous to and exports the twin-screw expansion motive power machine to by the heat that absorbs thermal source, the high pressure low temperature working substance steam expands to do work in the twin-screw expansion motive power machine and produces power, power is delivered to generator and cryogenic fluid recycle pump by drivign belt, generator obtains to generate electricity after power, the cryogenic fluid recycle pump obtains after power, liquid cryogenic fluid to be pumped into heat exchanger, the low pressure steam state cryogenic fluid of discharging from the twin-screw expansion motive power machine enters condenser by the steam state cryogenic fluid entrance of condenser, the steam state cryogenic fluid is condensed into after the recirculated cooling water heat release after liquid cryogenic fluid and is pumped into heat exchanger by the cryogenic fluid recycle pump and absorb and enter next circulation after the thermal source heat becomes high pressure steam state working medium, the effect of electronic working medium pump is the starter motor as temperature difference electricity generation device, electronic working medium pump starts and liquid cryogenic fluid is sent into heat exchanger by liquid cryogenic fluid entrance when electricity generating device need to start, liquid refrigerant becomes high pressure steam state working medium after absorbing the thermal source heat, thereby promote the rotation of twin-screw expansion motive power machine, the twin-screw expansion motive power machine drives generator by drivign belt and self-loopa is completed in the rotation of cryogenic fluid recycle pump, electronic working medium pump operation is out of service after 1 minute, temperature difference electricity generation device enters the self-loopa generating state.
The beneficial effects of the utility model are:
(a) the utility model circulates to cryogenic fluid by heat exchanger, twin-screw expansion motive power machine, generator, condenser and cryogenic fluid pump and recycles, can effectively realize discarded thermal gradient energy utilization, can effectively utilize the waste heat source of existing industrial enterprise, energy transition rate is high;
(b) twin-screw expansion motive power machine, generator and cryogenic fluid recycle pump connect by drivign belt, realize the generating of self-loopa isolated island, can improve the adaptability to waste heat source, even in the unsettled situation of waste heat source, still can reach more stable output performance.
Description of drawings
Fig. 1 is the temperature difference electricity generation device structural representation.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of temperature difference electricity generation device, it comprises: heat exchanger 2, twin-screw expansion motive power machine 4, condenser 6, generator 10, cryogenic fluid recycle pump 11 and electronic working medium pump 12.
Heat exchanger 2, it has thermal source interface (it contains thermal source entrance 1 and thermal source outlet 14), the outlet 3 of steam state cryogenic fluid and liquid cryogenic fluid entrance 13, thermal source including, but not limited to the enterprise of the industrial fields such as central air-conditioner, iron and steel, cement, stone refinery outwards discharging higher than the middle low-temperature flue gas of 60 ℃, the used heat such as waste steam, spent hot water resource, heat exchanger 2 convert the cryogenic fluid of liquid state the cryogenic fluid steam of high-pressure gaseous to by the heat that absorbs thermal source and export the heat exchanger 2 of twin-screw expansion motive power machine to.
Twin-screw expansion motive power machine 4, it is connected with the steam state cryogenic fluid outlet 3 of heat exchanger 2;
Condenser 6, it has the steam state cryogenic fluid entrance 5 that is connected with twin-screw expansion motive power machine 4, liquid cryogenic fluid outlet 9, recirculated cooling water interface (it contains circulating cooling water inlet 8 and circulating cooling water out 7);
By generator 10 and the cryogenic fluid recycle pump 11 that the twin-screw expansion motive power machine coordinates drivign belt 15 to drive, the entry end of cryogenic fluid recycle pump 11 is connected to the liquid cryogenic fluid outlet 9 of condenser 6;
As the electronic working medium pump 12 of temperature difference electricity generation device starter motor, it is located between the cryogenic fluid entrance 13 of liquid cryogenic fluid outlet 9 of condenser 6 and heat exchanger 2.
Described cryogenic fluid recycle pump 11, electronic working medium pump 12 are shielded twin-screw rod pump.
Described cryogenic fluid is hfc-245fa.
Use drivign belt 15 that power is interconnected between twin-screw expansion motive power machine 4, generator 10 and cryogenic fluid recycle pump 11, and no longer need exterior power to participate in after unit starting, can complete the self-loopa of generating.
In the present embodiment, heat exchanger 2 is plate type heat exchanger, and condenser 6 adopts the closed shell and tube condenser of Baofeng petrochemical iy produced.Cryogenic fluid recycle pump 11 is shielded twin-screw rod pump, and twin-screw expansion motive power machine 4 rotating speeds are more than 3000r/min, and its energy conversion efficiency reaches more than 80%.Use drivign belt 15 between twin-screw expansion motive power machine 4, cryogenic fluid recycle pump 11 and generator 10,200 kilowatts of twin-screw expansion motive power machine peak outputs, 3000 rev/mins of maximum output speeds, its energy conversion efficiency is about 80%.Generator 10 is three-phase synchronous generator, adopts STC-200 type synchronous generator.Cryogenic fluid recycle pump 11 models are 2W.W2.5-40,40 tons/hour of flows, pressure 1MPa.Electronic working medium pump 12 models are the D2W.W2.5-5 two screw pump.
In the present embodiment, thermal source is the steam condensate of 90 ℃ of left and right, 90 tons/hour of condensate flows, and the user need to use cooling tower that water temperature is reduced to below 70 ℃ and use, 90 ℃ of average condensate temperatures, 8000 hours/year condensate system operation period.25 ℃ of recirculated cooling water inlet temperatures, 30 ℃ of outlet temperatures, 400 tons/hour of flows; The condensate temperature of thermal source entrance 1 is 90 ℃, and the hot water temperature of thermal source outlet 14 is 70 ℃, and the temperature difference is 20 ℃, so heat-recoverable is 42kj.kg/ ℃ * 20 ℃ * 90000 kilograms/h=2100kw/h.Power generation system net efficiency 10%, generated output is 210kw/h, after adopting low temperature heat energy to reclaim electricity generating device, and existing cooling tower changed course electricity generating device supply recirculated cooling water, year send out electric weight 200,*80,00=,160 ten thousand kw/h clean, amount to the amount of money: ten thousand yuan/year of 160 * 0.71 yuan/kw.h=113.6.
The working procedure of the present embodiment is as follows: high-temperature condensation water enters heat exchanger 2 from thermal source entrance 1, through flowing out from thermal source outlet 14 after heat exchange.electronic working medium pump 12 starts 1 minute, liquid cryogenic fluid is pumped into heat exchanger 2, when cryogenic fluid passes through heat exchanger 2, become the gaseous state cryogenic fluid of 85 ℃ of left and right through the heat exchange heat absorption, the cryogenic fluid of steam state promotes the 4 rotation actings of twin-screw expansion motive power machine, twin-screw expansion motive power machine 4 drives generator 10 generatings by drivign belt 15 and cryogenic fluid recycle pump 11 pumps into heat exchanger 2 with liquid cryogenic fluid through liquid cryogenic fluid entrance 13, when the cryogenic fluid of gaseous state promotes 4 acting of twin-screw expansion motive power machine, the cryogenic fluid of gaseous state has partly to condense and is in a liquid state, then the further condensation through condenser 6 all is converted to liquid state, by cryogenic fluid recycle pump 11, the cryogenic fluid of liquid state is sent into heat exchanger 2 from liquid cryogenic fluid entrance 13 again, thereby realize the circulation of liquid refrigerant.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited in above-mentioned mode of execution, and every technological scheme that belongs to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, some improvement of carrying out under the prerequisite that does not break away from principle of the present utility model, these improvement also should be considered as protection domain of the present utility model.
Claims (5)
1. temperature difference electricity generation device is characterized in that having:
Convert the cryogenic fluid of liquid state the cryogenic fluid steam of high-pressure gaseous to by the heat that absorbs thermal source and export the heat exchanger of twin-screw expansion motive power machine to, it has thermal source interface, the outlet of steam state cryogenic fluid and liquid cryogenic fluid entrance;
The twin-screw expansion motive power machine, it is connected with the steam state cryogenic fluid outlet of heat exchanger;
Condenser, it has the steam state cryogenic fluid entrance that is connected with the twin-screw expansion motive power machine, the outlet of liquid cryogenic fluid, recirculated cooling water interface;
By generator and the cryogenic fluid recycle pump that the twin-screw expansion motive power machine coordinates drivign belt to drive, the entry end of cryogenic fluid recycle pump is connected to the liquid cryogenic fluid outlet of condenser;
As the electronic working medium pump of temperature difference electricity generation device starter motor, it is located between the cryogenic fluid entrance of liquid cryogenic fluid outlet of condenser and heat exchanger.
2. temperature difference electricity generation device according to claim 1, is characterized in that, described cryogenic fluid recycle pump, electronic working medium pump are shielded twin-screw rod pump.
3. temperature difference electricity generation device according to claim 1, is characterized in that, described cryogenic fluid is hfc-245fa.
4. temperature difference electricity generation device according to claim 1, is characterized in that, described heat exchanger is plate type heat exchanger.
5. temperature difference electricity generation device according to claim 1, is characterized in that, described condenser is closed shell and tube condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486559 CN203009193U (en) | 2012-09-20 | 2012-09-20 | Temperature difference power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486559 CN203009193U (en) | 2012-09-20 | 2012-09-20 | Temperature difference power generation device |
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| CN203009193U true CN203009193U (en) | 2013-06-19 |
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| CN 201220486559 Expired - Fee Related CN203009193U (en) | 2012-09-20 | 2012-09-20 | Temperature difference power generation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670979A (en) * | 2012-09-20 | 2014-03-26 | 上海尚实能源科技有限公司 | Temperature difference power generation device |
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2012
- 2012-09-20 CN CN 201220486559 patent/CN203009193U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670979A (en) * | 2012-09-20 | 2014-03-26 | 上海尚实能源科技有限公司 | Temperature difference power generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI SHANGSHI ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WANG SHIZHU Effective date: 20130618 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 221400 XUZHOU, JIANGSU PROVINCE TO: 200040 HONGKOU, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130618 Address after: 200040, room 2, building 738, 313 Guang Ji Road, Shanghai, Hongkou District Patentee after: SHANGHAI SHANGSHI ENERGY TECHNOLOGY CO.,LTD. Address before: 221400 No. 34, Xingang lane, Xinyi, Jiangsu Patentee before: Wang Shizhu |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |