CN107120151B - Self-circulation waste heat utilization system based on pressure power generation - Google Patents
Self-circulation waste heat utilization system based on pressure power generation Download PDFInfo
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- CN107120151B CN107120151B CN201710331176.9A CN201710331176A CN107120151B CN 107120151 B CN107120151 B CN 107120151B CN 201710331176 A CN201710331176 A CN 201710331176A CN 107120151 B CN107120151 B CN 107120151B
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- power generation
- fluid
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- 239000002918 waste heat Substances 0.000 title claims abstract description 58
- 238000010248 power generation Methods 0.000 title claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 97
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 31
- 239000012528 membrane Substances 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
Abstract
The invention relates to the field of pressure power generation, and discloses a self-circulation waste heat utilization system based on pressure power generation, which comprises the following components: the device comprises a first generator, a second generator, a first reversing valve, a second reversing valve, a hot fluid supply unit, a cold fluid supply unit, a film shell, a cooler, a liquid reservoir and an electric power output circuit. The invention can utilize the waste heat or the waste heat to raise the pressure of the fluid, so that the compression pressure power generation body of the fluid is deformed and then converted into electric energy, and the waste heat are recycled.
Description
Technical Field
The invention relates to the technical field of pressure power generation, in particular to a self-circulation waste heat utilization system based on pressure power generation.
Background
The waste heat and the waste heat exist in a large amount in life and production processes, and how to recycle the waste heat and the waste heat has important significance for improving the energy utilization rate.
Currently, the main utilization forms of waste heat and waste heat comprise waste heat and waste heat power generation, hot water supply and refrigeration. Studies have shown that when a piezoelectric body is subjected to forces in certain directions and deformed, equal amounts of positive and negative charges appear on both surfaces of the piezoelectric body. There are very few studies and applications of pressure power generation at present, and only few reports on pressure power generation by people's foot pressure and automobile highway pressure are reported. Therefore, how to utilize the waste heat and the waste heat for pressurization and then convert the waste heat and the waste heat into electric energy is a new energy conversion form, and has important significance for energy conservation and emission reduction.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to provide a self-circulation waste heat utilization system based on pressure power generation, which utilizes waste heat or waste heat to raise the pressure of fluid, so that a compression pressure power generation body of the self-circulation waste heat utilization system is deformed and then converted into electric energy, and the waste heat are recovered and utilized.
(II) technical scheme
In order to solve the above technical problems, the present invention provides a self-circulation waste heat utilization system based on pressure power generation, comprising: the device comprises a first generator, a second generator, a first reversing valve, a second reversing valve, a hot fluid supply unit, a cold fluid supply unit, a film shell, a cooler, a liquid reservoir and an electric power output circuit;
the first generator and the second generator are respectively provided with four interfaces, the first interface of the first generator is connected with the outlet of the hot fluid supply unit through a first reversing valve, and the second interface of the first generator is connected with the inlet of the hot fluid supply unit through a second reversing valve;
the hot fluid supply unit heats fluid through waste heat or waste heat and provides hot fluid for the first generator or the second generator;
the first interface of the second generator is connected with the outlet of the cold fluid supply unit through a first reversing valve, the second interface of the second generator is connected with the inlet of the cold fluid supply unit through a second reversing valve, and the cold fluid supply unit is used for providing cold fluid for the second generator or the first generator;
the pressure generating bodies are arranged in the membrane shells, the membrane shells with the pressure generating bodies arranged in parallel form a group, a channel is reserved between two adjacent membrane shells, the inlet end of the channel is respectively connected with the third interface of the first generator and the third interface of the second generator through a fluid inlet pipeline, the outlet end of the channel is connected with the inlet of the liquid storage device through a fluid outflow pipeline, the outlet of the liquid storage device is connected with the fourth interface of the first generator through a first fluid branch, and the outlet of the liquid storage device is connected with the fourth interface of the second generator through a second fluid branch;
both ends of the pressure generators are connected through wires and are connected to the power output circuit in a summarizing way;
a cooler is arranged on the fluid outflow pipeline, a first regulating valve is arranged between the cooler and the outlet of the channel, a second regulating valve is arranged between the cooler and the liquid storage device, a third regulating valve is arranged on the second fluid branch, a fourth regulating valve is arranged on the first fluid branch, a fifth regulating valve is arranged on the fluid inlet pipeline between the inlet of the channel and the first generator, and a sixth regulating valve is arranged on the fluid inlet pipeline between the inlet of the channel and the second generator;
the pressure of the first generator and the pressure of the second generator are used for compressing the pressure generating body, the cooler is used for cooling and releasing the pressure of the pressure generating body so as to complete compression deformation and recovery of the pressure generating body, and therefore electric energy is generated and output by the electric power output circuit.
The hot fluid supply unit is provided with a waste heat or waste heat pipeline and a heat exchange pipe, wherein the heat exchange pipe exchanges heat with the waste heat or waste heat pipeline, and hot fluid is provided for the system through the heat exchange pipe.
And a hot fluid circulating pump is arranged on a pipeline between the hot fluid supply unit and the second reversing valve.
The first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the fifth regulating valve and the sixth regulating valve are all electromagnetic valves.
Wherein the pressure power generation body is made of pressure power generation material.
Wherein, first switching-over valve and second switching-over valve are the cross switching-over valve.
(III) beneficial effects
Compared with the prior art, the invention has the following advantages:
according to the self-circulation waste heat utilization system based on pressure power generation, the opening and closing of the electromagnetic valve are controlled, heating fluid and cooling fluid sequentially flow through the two generators under the control of the reversing valve, so that one generator is guaranteed to maintain high pressure, the other generator is guaranteed to maintain low pressure, compression deformation of a pressure power generation body is completed by the aid of the high-pressure generator, cooling and pressure release of the fluid are achieved under the action of the cooler, and therefore the pressure power generation body is enabled to recover deformation; in the process of the pressure and pressure release of the membrane shell and the pressure power generation body arranged in the membrane shell, the pressure deformation of the pressure power generation body is utilized to generate electric energy and the electric energy is output by the electric power output circuit, so that the recovery and the utilization of waste heat or waste heat are realized, and the circulation of the power generation circulating working medium does not need to provide circulating power externally. The two generators are operated alternately in turn, so that the continuous operation of the system circulation is ensured.
Drawings
FIG. 1 is a schematic diagram of the connection of a self-circulating waste heat utilization system based on pressure power generation of the present invention;
in the figure: 1. a pressure power generator; 2. a membrane shell; 3. a first electromagnetic valve; 4. a cooler; 5. a second electromagnetic valve; 6. a reservoir; 7. a third electromagnetic valve; 8. a fourth electromagnetic valve; 9. a first generator; 10. a second generator; 11. a fifth electromagnetic valve; 12. a sixth electromagnetic valve; 13. a hot fluid supply unit; 131: waste heat or waste heat pipes; 132: a heat exchange tube; 14. a first reversing valve; 15. a second reversing valve; 16. a power output circuit; 17. a thermal fluid circulation pump; 18. a first fluid branch; 19. a second fluid branch; 20. fluid enters the pipeline; 21. the fluid flows out of the pipeline.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.
As shown in fig. 1, a self-circulation waste heat utilization system based on pressure power generation according to an embodiment of the present invention includes: a first generator 9, a second generator 10, a first reversing valve 14, a second reversing valve 15, a hot fluid supply unit 13, a cold fluid supply unit, a membrane shell 2, a cooler 4, a reservoir 6, and an electric power output circuit 16;
the first generator 9 and the second generator 10 are respectively provided with four interfaces, the first interface of the first generator 9 is connected with the outlet of the hot fluid supply unit 13 through a first reversing valve 14, and the second interface of the first generator 9 is connected with the inlet of the hot fluid supply unit 13 through a second reversing valve 15;
the hot fluid supply unit 13 heats the fluid by waste heat or waste heat, providing the first generator 9 or the second generator 10 with the hot fluid;
the first interface of the second generator 10 is connected with the outlet of the cold fluid supply unit through a first reversing valve 14, the second interface of the second generator 10 is connected with the inlet of the cold fluid supply unit through a second reversing valve 15, and the cold fluid supply unit is used for providing cold fluid for the second generator 10 or the first generator 9, wherein the cold fluid is reversed through the first reversing valve 14 and the second reversing valve 15, so that working media in the second generator 10 and the first generator 9 are exchanged; in the embodiment of the invention, the first reversing valve and the second reversing valve are four-way reversing valves;
the pressure power generation bodies 1 are arranged in the membrane shells 2, the membrane shells 2 of the plurality of built-in pressure power generation bodies 1 are arranged in parallel to form a group, a channel is reserved between two adjacent membrane shells 2, the inlet end of the channel is respectively connected with a third interface of the first generator 9 and a third interface of the second generator 10 through a fluid inlet pipeline 20, the outlet end of the channel is connected with the inlet of the liquid storage device 6 through a fluid outlet pipeline 21, the outlet of the liquid storage device 6 is connected with a fourth interface of the first generator 9 through a first fluid branch 18, and the outlet of the liquid storage device 6 is connected with a fourth interface of the second generator 10 through a second fluid branch 19; a hot fluid circulating pump 17 is arranged on a pipeline between the hot fluid supply unit 13 and the second reversing valve 15;
both ends of the plurality of pressure power generators 1 are connected and collectively connected to the power output circuit 16 through wires, and electric energy is transmitted to the power output circuit 16 through wires;
the cooler 4 is arranged on the fluid outflow pipeline 21, a first regulating valve is arranged between the cooler 4 and the outlet of the channel, a second regulating valve is arranged between the cooler 4 and the liquid storage device 6, a third regulating valve is arranged on the second fluid branch 19, a fourth regulating valve is arranged on the first fluid branch 18, a fifth regulating valve is arranged on the fluid inlet pipeline 20 between the inlet of the channel and the first generator 9, and a sixth regulating valve is arranged on the fluid inlet pipeline 20 between the inlet of the channel and the second generator 10;
the pressures of the first generator 9 and the second generator 10 are used for compressing the pressure generating body 1, the cooler 4 is used for cooling and releasing pressure to the medium in the pressure generating body 1 so as to complete compression deformation and recovery of the pressure generating body 1, and electric energy is generated and output by the electric power output circuit 16. When the system is operated, the fifth electromagnetic valve 11 is kept open, the sixth electromagnetic valve 12, the first electromagnetic valve 3, the fourth electromagnetic valve 8 and the third electromagnetic valve 7 are closed, heating fluid enters the first generator 9 through the first reversing valve 14, and cold fluid enters the second generator 10 through the first reversing valve 14. The pressure of the working fluid in the first generator 9 and the second generator 10 is heated up and cooled down, respectively. When the pressure in the first generator 9 rises to the maximum and stable, the pressure generating body 1 in the membrane shell 2 is compressed and deformed, at the moment, the first electromagnetic valve 3 is opened, the second electromagnetic valve 5 is kept closed, the pressure in the first generator 9 is reduced to the minimum under the action of the cooler 4, and the pressure generating body 1 is restored to deformation. At this time, the second generator 10 is pressure-reduced under the action of the cold fluid, the third electromagnetic valve 7 is opened, the working medium in the reservoir 6 enters the second generator 10, and the third electromagnetic valve 7 is closed after the pressure is balanced. Then the second solenoid valve 5 is opened and the working medium in the cooler 4 enters the reservoir 6 until the pressure is balanced. For the heating and cooling fluid loop, the heating fluid flows out of the first generator 9, through the second reversing valve 15, through the hot fluid supply unit 13 and into the first reversing valve 14 via the hot fluid circulation pump 17. The cold fluid then flows out of the second generator 10 through the second reversing valve 15 and out to continue to be cooled. The third electromagnetic valve 7 is closed at the same time of the pressure balance of the liquid storage 6 and the second generator 10, the first electromagnetic valve 3 is closed, the second electromagnetic valve 5 is opened, and the working medium in the cooler 4 enters the liquid storage 6 and closes the second electromagnetic valve 5 after the pressure balance. The third electromagnetic valve 7 is closed, the fifth electromagnetic valve 11 is also closed, the sixth electromagnetic valve 12 is opened, the first reversing valve 14 and the second reversing valve 15 are switched, so that the heating fluid and the cooling fluid flow respectively pass through the second generator 10 and the first generator 9, the pressure in the first generator 9 is reduced, the pressure in the second generator 10 is increased, and then the working medium pressure in the second generator 10 is utilized to compress the pressure power generation body 1 in the membrane shell 2, and the operation is sequentially and alternately performed. In the process of compressing and releasing the pressure generating body 1 in the membrane shell 2 and the built-in pressure generating body 1, electric energy is further generated through the compression deformation of the pressure generating body 1 and is output by the electric power output circuit 16; the first generator 9 and the second generator 10 are operated alternately in turn, when the first generator 9 is boosted, the second generator 10 is cooled down by the cooling water and depressurized, and when the pressure is reduced to be smaller than the pressure in the reservoir, the working medium in the reservoir enters the second generator 10, thereby ensuring the continuous progress of the cycle. The recovery and utilization of the waste heat or the waste heat are realized, the flow of the expansion/compression fluid is circulated by means of the pressure difference in the system, and no mechanical circulation equipment is needed to be additionally provided.
Specifically, the hot fluid supply unit 13 is provided with a waste heat or waste heat pipe 131 and a heat exchange pipe 132, the heat exchange pipe 132 exchanges heat with the waste heat or waste heat pipe 131, and the hot fluid is supplied to the system through the heat exchange pipe 132.
In order to facilitate automatic control, the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the fifth regulating valve and the sixth regulating valve may be electromagnetic valves.
The pressure generating element 1 may be made of a pressure generating material, such as piezoelectric ceramics.
According to the embodiment, the fluid pressure can be raised by utilizing the waste heat or the waste heat, so that the compression pressure power generation body is deformed and then converted into electric energy, and the waste heat are recycled.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. A self-circulating waste heat utilization system based on pressure power generation, characterized by comprising: the device comprises a first generator, a second generator, a hot fluid supply unit, a cold fluid supply unit, a film shell, a cooler, a liquid reservoir and an electric power output circuit;
the first generator and the second generator are respectively provided with four interfaces, the first interface of the first generator is connected with the outlet of the hot fluid supply unit through a first reversing valve, and the second interface of the first generator is connected with the inlet of the hot fluid supply unit through a second reversing valve;
the hot fluid supply unit heats fluid through waste heat and provides hot fluid for the first generator or the second generator;
the first interface of the second generator is connected with the outlet of the cold fluid supply unit through a first reversing valve, the second interface of the second generator is connected with the inlet of the cold fluid supply unit through a second reversing valve, and the cold fluid supply unit is used for providing cold fluid for the second generator or the first generator;
the pressure generating bodies are arranged in the membrane shells, the membrane shells with the pressure generating bodies arranged in parallel form a group, a channel is reserved between two adjacent membrane shells, the inlet end of the channel is respectively connected with the third interface of the first generator and the third interface of the second generator through a fluid inlet pipeline, the outlet end of the channel is connected with the inlet of the liquid storage device through a fluid outflow pipeline, the outlet of the liquid storage device is connected with the fourth interface of the first generator through a first fluid branch, and the outlet of the liquid storage device is connected with the fourth interface of the second generator through a second fluid branch;
both ends of the pressure generators are connected through wires and are connected to the power output circuit in a summarizing way;
a cooler is arranged on the fluid outflow pipeline, a first regulating valve is arranged between the cooler and the outlet of the channel, a second regulating valve is arranged between the cooler and the liquid storage device, a third regulating valve is arranged on the second fluid branch, a fourth regulating valve is arranged on the first fluid branch, a fifth regulating valve is arranged on the fluid inlet pipeline between the inlet of the channel and the first generator, and a sixth regulating valve is arranged on the fluid inlet pipeline between the inlet of the channel and the second generator;
the pressure of the first generator and the pressure of the second generator are used for compressing the pressure power generation body, the cooler is used for cooling and releasing the pressure power generation body so as to complete compression deformation and recovery of the pressure power generation body, and electric energy is generated and output by the electric power output circuit;
the first generator and the second generator are operated alternately in turn, when the first generator is boosted, the second generator is cooled by cooling water to reduce the pressure, and when the pressure is reduced to be smaller than the pressure in the liquid storage device, the working medium in the liquid storage device enters the second generator, so that the continuous circulation is ensured.
2. The self-circulation waste heat utilization system based on pressure power generation according to claim 1, wherein the hot fluid supply unit is provided with a waste heat pipe and a heat exchange pipe, the heat exchange pipe exchanges heat with the waste heat pipe, and the hot fluid is supplied to the system through the heat exchange pipe.
3. The self-circulation waste heat utilization system based on pressure power generation according to claim 1, wherein a thermal fluid circulation pump is provided on a pipe line between the thermal fluid supply unit and the second reversing valve.
4. The pressure power generation-based self-circulation waste heat utilization system according to claim 1, wherein the first, second, third, fourth, fifth and sixth regulating valves are solenoid valves.
5. The self-circulating waste heat utilization system of pressure-based power generation of claim 1, wherein the pressure power generator is made of a pressure power generation material.
6. The pressure power generation-based self-circulation waste heat utilization system of claim 1, wherein the first reversing valve and the second reversing valve are four-way reversing valves.
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| CN201710331176.9A CN107120151B (en) | 2017-05-11 | 2017-05-11 | Self-circulation waste heat utilization system based on pressure power generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710331176.9A CN107120151B (en) | 2017-05-11 | 2017-05-11 | Self-circulation waste heat utilization system based on pressure power generation |
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| CN107120151B true CN107120151B (en) | 2023-06-09 |
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| US6260367B1 (en) * | 1997-12-26 | 2001-07-17 | Zexel Corporation | Refrigerating cycle |
| JP2011012645A (en) * | 2009-07-06 | 2011-01-20 | Nagaoka Univ Of Technology | Heat engine cycle multiple-connected system |
| CN102787943A (en) * | 2012-08-30 | 2012-11-21 | 中国科学院广州能源研究所 | Engine waste heat recycling system utilizing organic working medium as cooling liquid |
| JP2013158138A (en) * | 2012-01-30 | 2013-08-15 | Shoji Shimazaki | Piezoelectric power generator |
| JP2016017697A (en) * | 2014-07-08 | 2016-02-01 | 株式会社前川製作所 | Ice rink refrigeration facility and refrigeration method |
| CN206785444U (en) * | 2017-05-11 | 2017-12-22 | 北京建筑大学 | A kind of self-loopa waste heat utilization system based on pressure electricity-generating |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7439630B2 (en) * | 2006-09-08 | 2008-10-21 | Helius Inc. | System and methodology for generating electricity using a chemical heat engine and piezoelectric material |
| JP2014531013A (en) * | 2011-10-27 | 2014-11-20 | 智▲鳴▼ 王 | Cooling system without a compressor powered by a heat source |
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2017
- 2017-05-11 CN CN201710331176.9A patent/CN107120151B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6260367B1 (en) * | 1997-12-26 | 2001-07-17 | Zexel Corporation | Refrigerating cycle |
| JP2011012645A (en) * | 2009-07-06 | 2011-01-20 | Nagaoka Univ Of Technology | Heat engine cycle multiple-connected system |
| JP2013158138A (en) * | 2012-01-30 | 2013-08-15 | Shoji Shimazaki | Piezoelectric power generator |
| CN102787943A (en) * | 2012-08-30 | 2012-11-21 | 中国科学院广州能源研究所 | Engine waste heat recycling system utilizing organic working medium as cooling liquid |
| JP2016017697A (en) * | 2014-07-08 | 2016-02-01 | 株式会社前川製作所 | Ice rink refrigeration facility and refrigeration method |
| CN206785444U (en) * | 2017-05-11 | 2017-12-22 | 北京建筑大学 | A kind of self-loopa waste heat utilization system based on pressure electricity-generating |
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