CN212898644U - Temperature difference power generation device - Google Patents
Temperature difference power generation device Download PDFInfo
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- CN212898644U CN212898644U CN202021516442.9U CN202021516442U CN212898644U CN 212898644 U CN212898644 U CN 212898644U CN 202021516442 U CN202021516442 U CN 202021516442U CN 212898644 U CN212898644 U CN 212898644U
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Abstract
The application relates to the technical field of power generation equipment, in particular to a temperature difference power generation device which comprises a heat absorption system, a heat release system and a power generation system; the heat absorption system comprises a first circulation pipeline, a first heat exchanger and a first tank body, wherein the first heat exchanger is used for assisting the first circulation pipeline to absorb heat to the external environment, and the first tank body is used for storing a first heat-conducting medium after absorbing the heat; the heat release system comprises a second circulation pipeline, a second heat exchanger and a second tank body, the second heat exchanger is used for assisting the second circulation pipeline to release heat to the external environment, and the second tank body is used for storing a second heat-conducting medium after the heat is released; the power generation system comprises a third circulation pipeline, a third heat exchanger, a fourth heat exchanger, an expansion machine and a power generator, wherein the third heat exchanger and the fourth heat exchanger are respectively used for assisting the third circulation pipeline to exchange heat with the first circulation pipeline or the second circulation pipeline. The technical problem that the existing cold energy is consumed to cause high power generation cost in the prior art is effectively solved.
Description
Technical Field
The application relates to the technical field of power generation equipment, in particular to a temperature difference power generation device.
Background
The utilization of the environmental temperature difference of the nature at home and abroad has been long. From ancient times, people can use hot springs to warm and use underground water with lower temperature to keep food fresh in summer. The seawater thermoelectric power generation is firstly proposed by French scientist Darsowal in 1881 in 9 months, and in 1926 in 11 months, the French academy of sciences established the first experimental thermoelectric power station in the world. In 2012, 1 month, the subject of research and test on a 15kW thermoelectric power generation device by the first ocean institute of the national ocean administration passes acceptance in the Qingdao city, so that China becomes a third country independently mastering a seawater thermoelectric power generation technology.
However, in the prior art, in the scheme of generating power by using a temperature difference through a rankine cycle power generation system, LNG cold energy is often required to be used as a cold end of a rankine cycle, and normal-temperature seawater is used as a hot end.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present application is to provide a thermoelectric power generation device, which effectively solves the technical problem in the prior art that the power generation cost is high due to the need of consuming the existing cold energy.
In order to achieve the purpose, the application provides the following technical scheme:
a temperature difference power generation device comprises a heat absorption system, a heat release system and a power generation system;
the heat absorption system comprises a first circulation pipeline, a first heat exchanger and a first tank body, the first heat exchanger and the first tank body are installed in the first circulation pipeline, the first heat exchanger is used for assisting a first heat-conducting medium of the first circulation pipeline to absorb heat to the external environment, and the first tank body is used for storing the first heat-conducting medium after absorbing heat;
the heat release system comprises a second circulation pipeline, a second heat exchanger and a second tank body, the second heat exchanger and the second tank body are installed in the second circulation pipeline, the second heat exchanger is used for assisting a second heat-conducting medium of the second circulation pipeline to release heat to the external environment, and the second tank body is used for storing the second heat-conducting medium after heat release;
the power generation system comprises a third circulation pipeline, a third heat exchanger, a fourth heat exchanger, an expander and a power generator, wherein the third heat exchanger, the expander and the fourth heat exchanger are sequentially arranged in the third circulation pipeline;
the third heat exchanger is used for assisting the third circulating pipeline to exchange heat with the first circulating pipeline, and the fourth heat exchanger is used for assisting the third circulating pipeline to exchange heat with the second circulating pipeline;
the expander is connected with the generator and used for driving the generator to generate electricity.
Preferably, in the above thermoelectric power generation device, a first valve is disposed on the first circulation pipeline, and the first valve is disposed between the first heat exchanger and the first tank;
and a second valve is arranged on the second circulating pipeline and is arranged between the second heat exchanger and the second tank body.
Preferably, in the above thermoelectric power generation device, the first circulation pipeline is provided with a third tank, the first heat exchanger, the first tank and the third tank are sequentially connected to the first circulation pipeline, and the third heat exchanger is located between the first tank and the third tank;
the second circulating pipeline is provided with a fourth tank body, the second heat exchanger, the second tank body and the fourth tank body are sequentially connected into the first circulating pipeline, and the fourth heat exchanger is located between the second tank body and the fourth tank body.
Preferably, in the thermoelectric power generation device, the first circulation pipeline is provided with a first pump body, and the first pump body is positioned between the third tank and the first heat exchanger;
the second circulating pipeline is provided with a second pump body, and the second pump body is located between the fourth tank body and the second heat exchanger.
Preferably, in the above thermoelectric power generation device, the first tank, the second tank, the third tank, and the fourth tank are all provided with a heat insulation layer.
Preferably, in the above thermoelectric power generation device, the third circulation pipeline is further provided with a compression pump, and the third heat exchanger, the expander, the fourth heat exchanger and the compression pump are sequentially connected to the third circulation pipeline.
Preferably, in the thermoelectric generation device, a temperature sensor is further included, and the temperature sensor is configured to detect the temperature of the external environment and the respective heat transfer media.
Preferably, in the above thermoelectric power generation device, the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger are plate heat exchangers, shell-and-tube heat exchangers, fin-and-tube heat exchangers, or a combination thereof.
Preferably, in the above thermoelectric power generation device, the expander is specifically a turbine expander, a piston expander or a screw expander.
Preferably, in the thermoelectric power generation device, the first tank is connected to the first circulation pipeline through a first feeding pipe and a first discharging pipe, and a third valve is arranged on the first discharging pipe;
the second tank body is connected into the second circulating pipeline through a second feeding pipe and a second discharging pipe, and a fourth valve is arranged on the second discharging pipe.
The beneficial effect of this application is:
when the heat-conducting device is used, the heat-conducting device is suitable for being used when the temperature of the external environment is higher than that of the first heat-conducting medium, the first heat-conducting medium can absorb heat to the external environment through the first heat exchanger, and when the temperature of the first heat-conducting medium is increased to a first value, the first heat-conducting medium can be conveyed to the first tank body to be stored and insulated; when the temperature of the external environment is lower than that of the second heat-conducting medium, the second heat-conducting medium can release heat to the external environment through the second heat exchanger, and when the temperature of the second heat-conducting medium is reduced to a second value (the second value is lower than the first value), the second heat-conducting medium can be conveyed to the second tank body for storage and heat preservation; releasing a first heat-conducting medium in the first tank body and a second heat-conducting medium in the second tank body, wherein a third heat-conducting medium on one side of a third circulating pipeline can exchange heat with the first heat-conducting medium through a third heat exchanger and provide a heat source for a heat engine subsystem of the expander; and the third heat-conducting medium of third circulation pipeline opposite side can carry out the heat exchange through fourth heat exchanger and second heat-conducting medium, and provide the cold source for the heat engine subsystem of expander, thereby make the heat engine subsystem of expander can follow the heat-absorbing system and constantly absorb heat energy, thereby externally do work and carry out the power generation operation in order to drive the generator, and the heat engine subsystem can constantly release heat energy toward heat-releasing system, form circulation heat-conducting circuit, realize that expander and generator can constantly carry out the power generation operation, because cold energy and heat energy of this application all come from the environment, need not to consume current LNG cold energy, have the advantage that green is renewable and the electricity generation is with low costs, it needs to consume current cold energy to lead to the technical problem that the electricity generation is with high costs to solve effectively among the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a thermoelectric power generation device according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a temperature change of an external environment of a thermoelectric power generation device according to an embodiment of the present application with time.
In the figure:
1 is a first circulation pipeline, 11 is a first heat exchanger, 12 is a first valve, 13 is a first tank, 14 is a third tank, 15 is a first pump body, 2 is a second circulation pipeline, 21 is a second heat exchanger, 22 is a second valve, 23 is a second tank, 24 is a fourth tank, 25 is a second pump body, 3 is a third circulation pipeline, 31 is a third heat exchanger, 32 is an expander, 33 is a fourth heat exchanger, 34 is a compression pump, and 4 is a generator.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The utilization of the environmental temperature difference of the nature at home and abroad has been long. From ancient times, people can use hot springs to warm and use underground water with lower temperature to keep food fresh in summer. The seawater thermoelectric power generation is firstly proposed by French scientist Darsowal in 1881 in 9 months, and in 1926 in 11 months, the French academy of sciences established the first experimental thermoelectric power station in the world. In 2012, 1 month, the subject of research and test on a 15kW thermoelectric power generation device by the first ocean institute of the national ocean administration passes acceptance in the Qingdao city, so that China becomes a third country independently mastering a seawater thermoelectric power generation technology. However, in the prior art, in the scheme of generating power by using a temperature difference through a rankine cycle power generation system, LNG cold energy is often required to be used as a cold end of a rankine cycle, and normal-temperature seawater is used as a hot end. The embodiment provides a thermoelectric generation device, has green and renewable and low power generation cost's advantage, has to consume the technical problem that current LNG cold energy leads to the electricity generation cost to be high among the prior art effectively to solve.
Referring to fig. 1-2, an embodiment of the present application provides a thermoelectric power generation device, including a heat absorption system, a heat release system, and a power generation system; the heat absorption system comprises a first circulation pipeline 1, a first heat exchanger 11 and a first tank body 13, the first heat exchanger 11 and the first tank body 13 are installed in the first circulation pipeline 1, the first heat exchanger 11 is used for assisting a first heat-conducting medium of the first circulation pipeline 1 to absorb heat to the external environment, and the first tank body 13 is used for storing the first heat-conducting medium after heat absorption; the heat release system comprises a second circulation pipeline 2, a second heat exchanger 21 and a second tank body 23, the second heat exchanger 21 and the second tank body 23 are installed in the second circulation pipeline 2, the second heat exchanger 21 is used for assisting a second heat-conducting medium of the second circulation pipeline 2 to release heat to the external environment, and the second tank body 23 is used for storing the second heat-conducting medium after heat release; the power generation system comprises a third circulation pipeline 3, a third heat exchanger 31, a fourth heat exchanger 33, an expander 32 and a power generator 4, wherein the third heat exchanger 31, the expander 32 and the fourth heat exchanger 33 are sequentially arranged in the third circulation pipeline 3; the third heat exchanger 31 is used for assisting the third circulation pipeline 3 to exchange heat with the first circulation pipeline 1, and the fourth heat exchanger 33 is used for assisting the third circulation pipeline 3 to exchange heat with the second circulation pipeline 2; the expander 32 is connected to the generator 4, and the expander 32 is used to drive the generator 4 to generate electricity.
This embodiment mainly is applicable to the great place of the temperature difference round the clock such as desert, plateau, moon, space, utilizes the temperature difference round the clock to realize continuous power generation, and this embodiment also can be applicable to the great other places of temperature change along with time, and this application is no longer repeated one by one.
More specifically, the third heat exchanger 31 is disposed on both the first circulation line 1 and the third circulation line 3 to facilitate heat exchange between the first heat transfer medium and the third heat transfer medium, and the fourth heat exchanger 33 is also disposed on both the second circulation line 2 and the third circulation line 3 to facilitate heat exchange between the second heat transfer medium and the third heat transfer medium; referring to fig. 1, an arrow on each circulation pipeline represents a flowing direction of the heat transfer medium in each circulation pipeline, that is, the first heat transfer medium in the first circulation pipeline 1 flows clockwise, and the first heat exchanger 11, the first tank 13 and the third heat exchanger 31 are also sequentially arranged clockwise; the second heat-conducting medium in the second circulation pipeline 2 flows in the counterclockwise direction, and the second heat exchanger 21, the second tank 23 and the fourth heat exchanger 33 are also sequentially arranged in the counterclockwise direction; in order to ensure good heat exchange efficiency between the heat-conducting media, the first heat-conducting medium and the third heat-conducting medium in the third heat exchanger 31 flow in opposite directions, the first heat-conducting medium and the third heat-conducting medium in convection are beneficial to improving the heat exchange efficiency, similarly, the second heat-conducting medium and the third heat-conducting medium in the fourth heat exchanger 33 flow in opposite directions, and the second heat-conducting medium and the third heat-conducting medium in convection are beneficial to improving the heat exchange efficiency.
When the heat exchanger is used, the heat exchanger is suitable for absorbing heat to the external environment through the first heat exchanger 11 when the temperature of the external environment is higher than that of the first heat-conducting medium, and when the temperature of the first heat-conducting medium is increased to a first value, the first heat-conducting medium can be conveyed to the first tank 13 to be stored and insulated; when the temperature of the external environment is lower than the temperature of the second heat-conducting medium, the second heat-conducting medium can release heat to the external environment through the second heat exchanger 21, and when the temperature of the second heat-conducting medium is reduced to a second value (the second value is lower than the first value), the second heat-conducting medium can be conveyed to the second tank 23 for storage and heat preservation; the first heat-conducting medium in the first tank 13 and the second heat-conducting medium in the second tank 23 are released, and the third heat-conducting medium on one side of the third circulating pipeline 3 can exchange heat with the first heat-conducting medium through the third heat exchanger 31 and provide a heat source for a heat engine subsystem of the expander 32; and the third heat-conducting medium of third circulation pipeline 3 opposite side can carry out the heat exchange through fourth heat exchanger 33 and second heat-conducting medium, and provide the cold source for the heat engine subsystem of expander 32, thereby make the heat engine subsystem of expander 32 can follow the heat absorption system and continuously absorb heat energy, thereby externally do work and carry out the power generation operation in order to drive generator 4, and the heat engine subsystem can continuously release heat energy toward heat release system, form circulation heat-conducting circuit, realize that expander 32 and generator 4 can continuously carry out the power generation operation, because cold energy and heat energy of this application all come from the environment, need not to consume current LNG cold energy, it is renewable and the advantage that the electricity generation cost is low to have green, it needs to consume current cold energy to lead to the technical problem that the electricity generation cost is high to solve effectively to exist among the prior art.
Further, in the present embodiment, a first valve 12 is disposed on the first circulation line 1, and the first valve 12 is disposed between the first heat exchanger 11 and the first tank 13; a second valve 22 is provided on the second circulation line 2, and the second valve 22 is provided between the second heat exchanger 21 and the second tank 23. Through the arrangement of the first valve 12, the first heat-conducting medium in the first heat exchanger 11 can absorb enough heat from the external environment and then be stored in the first tank 13; also by the arrangement of the second valve 22, the second heat transfer medium in the second heat exchanger 21 can absorb enough heat from the external environment to be stored in the second tank 23.
More specifically, when the present embodiment is applied to a desert, the first heat exchanger 11 and the second heat exchanger 21 are both disposed above a sand surface, the first tank 13 and the second tank 23 are both disposed below the sand surface, the first valve 12 and the second valve 22 are opened, and the first heat transfer medium and the second heat transfer medium may flow into the first tank 13 and the second tank 23, respectively, under the influence of gravity.
Further, in this embodiment, the first circulation pipeline 1 is provided with a third tank 14, the first heat exchanger 11, the first tank 13 and the third tank 14 are sequentially connected to the first circulation pipeline 1, and the third heat exchanger 31 is located between the first tank 13 and the third tank 14; the second circulation pipeline 2 is provided with a fourth tank 24, the second heat exchanger 21, the second tank 23 and the fourth tank 24 are sequentially connected into the first circulation pipeline 1, and the fourth heat exchanger 33 is positioned between the second tank 23 and the fourth tank 24. The third tank 14 can not only recover and store the first heat-conducting medium after heat exchange in the third heat exchanger 31, but also serve as a first heat-conducting medium providing device of the first heat exchanger 11, which is beneficial to ensuring that the power generation system and the heat absorption system can continuously operate. Similarly, the fourth tank 24 not only can recover and store the second heat transfer medium after heat exchange in the fourth heat exchanger 33, but also can be used as a second heat transfer medium supply device of the second heat exchanger 21, which is beneficial to ensuring that the heat release system and the heat absorption system can continuously operate.
More specifically, the third tank 14 and the fourth tank 24 are both arranged below the sand surface, and the third tank 14 is positioned below the first tank 13, so that the first heat-conducting medium in the first tank 13 is recovered into the third tank 14 under the action of gravity; the fourth tank 24 is located below the second tank 23 so that the second heat transfer medium in the second tank 23 is recovered into the fourth tank 24 by gravity.
Further, in the present embodiment, the first circulation pipeline 1 is provided with a first pump body 15, and the first pump body 15 is located between the third tank 14 and the first heat exchanger 11; the second circulation pipe 2 is provided with a second pump 25, and the second pump 25 is located between the fourth tank 24 and the second heat exchanger 21. When the temperature of the external environment rises to the same temperature as the first heat-conducting medium, the first heat-conducting medium in the third tank 14 can be conveyed into the first heat exchanger 11 through the first pump body 15, so that the first heat-conducting medium can absorb heat from the external environment; when the temperature of the external environment drops to the same temperature as the second heat transfer medium, the second heat transfer medium in the fourth tank 24 can be transported into the second heat exchanger 21 through the second pump 25, so that the second heat transfer medium can release heat to the external environment.
Further, in this embodiment, the first tank 13, the second tank 23, the third tank 14 and the fourth tank 24 are all provided with heat insulating layers, and the influence of the external environment on the heat-conducting media in the first tank 13, the second tank 23, the third tank 14 and the fourth tank 24 can be greatly reduced by the heat insulating layers, so that the heat-conducting media in the first tank 13, the second tank 23, the third tank 14 and the fourth tank 24 can be prevented from generating large temperature changes, and the whole power generation device can operate normally.
Further, in the present embodiment, the third circulation line 3 is further provided with a compression pump 34, and the third heat exchanger 31, the expander 32, the fourth heat exchanger 33 and the compression pump 34 are sequentially connected to the third circulation line 3. The flow of the third heat transfer medium in the third circulation pipeline 3 can be promoted by the compression pump 34, so that the third heat transfer medium condensed by the fourth heat exchanger 33 can enter the third heat exchanger 31 again to start a new circulation, and the third heat transfer medium can circulate in the third circulation pipeline 3, thereby ensuring that the power generation is continuously performed.
Further, in this embodiment, a temperature sensor is further included, and the temperature sensor is configured to detect the temperature of the external environment and the respective heat transfer media. The temperature sensor can monitor the temperature of the external environment and each heat-conducting medium in real time so as to control the closing of each valve and the starting of each pump body in real time, and a heat absorption system and a heat release system can be normally carried out.
Further, in this embodiment, the first heat exchanger 11, the second heat exchanger 21, the third heat exchanger 31, and the fourth heat exchanger 33 are specifically plate heat exchangers, shell-and-tube heat exchangers, fin-and-tube heat exchangers, or a combination thereof.
More specifically, the third heat exchanger 31 and the fourth heat exchanger 33 may employ a double pipe heat exchanger such that the third heat transfer medium exchanges heat with the first heat transfer medium or the second heat transfer medium.
Further, in the present embodiment, the expander 32 may be a turbine expander 32, a piston expander 32 or a screw expander 32, as long as it is ensured that the expander 32 can do work externally to drive the generator 4 to generate power.
Further, in this embodiment, the first tank 13 is connected to the first circulation pipeline 1 through a first feeding pipe and a first discharging pipe, and a third valve is disposed on the first discharging pipe; the second tank body 23 is connected to the second circulation pipeline 2 through a second feeding pipe and a second discharging pipe, and a fourth valve is arranged on the second discharging pipe. The time that the first heat-conducting medium in the first tank body 13 exchanges heat with the third heat-conducting medium through the third heat exchanger 31 is controlled conveniently through the setting of the third valve, the time that the second heat-conducting medium in the second tank body 23 exchanges heat with the fourth heat-conducting medium through the fourth heat exchanger 33 is controlled conveniently through the setting of the fourth valve, and the third valve and the fourth valve are controlled simultaneously, so that a heat source and a cold source can be formed on two sides of the third circulating pipeline 3 conveniently, and the generator 4 can generate electricity continuously.
The specific working process of this embodiment: referring to fig. 2, at time T1, when the temperature of the external environment rises to T1, which is the same as the temperature of the first heat-conducting medium, the first pump body 15 may be started to pump the first heat-conducting medium in the third tank 14 to the first heat exchanger 11, and as the temperature of the external environment continues to rise, the first heat-conducting medium may absorb heat to the external environment through the first heat exchanger 11; at time T2, the external environment rises to the maximum temperature Tmax and then falls to T2(T2 is greater than T1), at which time the first heat-transfer medium has absorbed heat sufficiently, and the first valve 12 is opened so that the heat-absorbed first heat-transfer medium is stored in the first tank 13; at time T3, when the temperature of the external environment decreases to T3(T3 is less than T1) which is the same as the temperature of the second heat transfer medium, the second pump 25 may be actuated to pump the second heat transfer medium in the fourth tank 24 to the second heat exchanger 21, and as the temperature of the external environment continues to decrease, the second heat transfer medium may release heat to the external environment through the second heat exchanger 21; at time T4, the external environment drops to the minimum temperature Tmin and then to T4(T4 is less than T3), at which time the first heat transfer medium has sufficiently dissipated heat, opening the second valve 22 such that the dissipated heat is stored in the second tank 23; finally, through opening the third valve and the fourth valve, the third heat-conducting media of both sides exchange heat with first heat-conducting medium and second heat-conducting medium respectively, the third heat-conducting medium close to the heat absorption system can provide a heat source as the heat engine subsystem of expander 32, the third heat-conducting medium close to the heat release system can provide a cold source as the heat engine subsystem of expander 32, thereby the heat engine subsystem of expander 32 can continuously absorb heat energy from the heat absorption system, thereby externally do work to drive generator 4 to generate electricity, and the heat engine subsystem can continuously release heat energy to the heat release system, form circulation heat conduction circuit, realize that expander 32 and generator 4 can continuously generate electricity.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The thermoelectric power generation device is characterized by comprising a heat absorption system, a heat release system and a power generation system;
the heat absorption system comprises a first circulation pipeline, a first heat exchanger and a first tank body, the first heat exchanger and the first tank body are installed in the first circulation pipeline, the first heat exchanger is used for assisting a first heat-conducting medium of the first circulation pipeline to absorb heat to the external environment, and the first tank body is used for storing the first heat-conducting medium after absorbing heat;
the heat release system comprises a second circulation pipeline, a second heat exchanger and a second tank body, the second heat exchanger and the second tank body are installed in the second circulation pipeline, the second heat exchanger is used for assisting a second heat-conducting medium of the second circulation pipeline to release heat to the external environment, and the second tank body is used for storing the second heat-conducting medium after heat release;
the power generation system comprises a third circulation pipeline, a third heat exchanger, a fourth heat exchanger, an expander and a power generator, wherein the third heat exchanger, the expander and the fourth heat exchanger are sequentially arranged in the third circulation pipeline;
the third heat exchanger is used for assisting the third circulating pipeline to exchange heat with the first circulating pipeline, and the fourth heat exchanger is used for assisting the third circulating pipeline to exchange heat with the second circulating pipeline;
the expander is connected with the generator and used for driving the generator to generate electricity.
2. The thermoelectric power generation device according to claim 1, wherein a first valve is provided on the first circulation line, the first valve being provided between the first heat exchanger and the first tank;
and a second valve is arranged on the second circulating pipeline and is arranged between the second heat exchanger and the second tank body.
3. The thermoelectric power generation device according to claim 1, wherein the first circulation pipeline is provided with a third tank, the first heat exchanger, the first tank and the third tank are sequentially connected into the first circulation pipeline, and the third heat exchanger is located between the first tank and the third tank;
the second circulating pipeline is provided with a fourth tank body, the second heat exchanger, the second tank body and the fourth tank body are sequentially connected into the first circulating pipeline, and the fourth heat exchanger is located between the second tank body and the fourth tank body.
4. The thermoelectric power generation device according to claim 3, wherein the first circulation line is provided with a first pump body located between the third tank and the first heat exchanger;
the second circulating pipeline is provided with a second pump body, and the second pump body is located between the fourth tank body and the second heat exchanger.
5. The thermoelectric power generation device according to claim 3, wherein the first tank, the second tank, the third tank, and the fourth tank are each provided with a heat insulating layer.
6. The thermoelectric power generation device according to claim 1, wherein the third circulation pipeline is further provided with a compression pump, and the third heat exchanger, the expander, the fourth heat exchanger and the compression pump are sequentially connected into the third circulation pipeline.
7. The thermoelectric power generation device according to claim 1, further comprising a temperature sensor for detecting temperatures of an external environment and each of the heat transfer media.
8. The thermoelectric power generation device according to claim 1, wherein the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger are plate heat exchangers, shell-and-tube heat exchangers, tube-fin heat exchangers, double-tube heat exchangers, or a combination thereof.
9. The thermoelectric power generation device according to claim 1, wherein the expander is specifically a turbo expander, a piston expander or a screw expander.
10. The thermoelectric power generation device according to any one of claims 1 to 9, wherein the first tank is connected to the first circulation line via a first feed pipe and a first discharge pipe, and a third valve is provided on the first discharge pipe;
the second tank body is connected into the second circulating pipeline through a second feeding pipe and a second discharging pipe, and a fourth valve is arranged on the second discharging pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021516442.9U CN212898644U (en) | 2020-07-28 | 2020-07-28 | Temperature difference power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021516442.9U CN212898644U (en) | 2020-07-28 | 2020-07-28 | Temperature difference power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898644U true CN212898644U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021516442.9U Expired - Fee Related CN212898644U (en) | 2020-07-28 | 2020-07-28 | Temperature difference power generation device |
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| CN (1) | CN212898644U (en) |
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2020
- 2020-07-28 CN CN202021516442.9U patent/CN212898644U/en not_active Expired - Fee Related
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