A temperature difference power generation and combined cooling and heating system and its operation method

Abstract

The present invention relates to the technical field of energy supply systems, and its purpose is to provide a temperature difference power generation, combined cooling and heating system and its operation method. This temperature difference power generation, combined cooling and heating system can not only use cold and hot air flows to achieve temperature difference power generation, but also use the remaining cold energy and heat energy of the cold and hot air flows. The above-mentioned temperature difference power generation, combined cooling and heating system includes: an air supply module, a temperature difference power generation module, a cooling module and a heating module; the air supply module has a cold air flow outlet and a hot air flow outlet; the temperature difference power generation module includes a heat exchange component and a power generation component, the heat exchange component has a condensation side and an evaporation side, the condensation side inlet is connected to the cold air flow outlet, the evaporation side inlet is connected to the hot air flow outlet, and the heat exchange component drive end is connected to the power generation component input end; the cooling module is used to provide cold air; the heating module is used to provide hot air. The present invention solves the problem that the temperature difference power generation system in the prior art cannot use the remaining cold energy and heat energy of the cold and hot air flows, resulting in energy waste.

Description

Technical Field

[0001] The present invention relates to the technical field of energy supply systems, and in particular to a temperature difference power generation and combined cooling and heating system and an operation method thereof. Background Art

[0002] With the vigorous development of wind power generation and solar power generation, a new power system with new energy as the main body has been built. Although wind energy and solar energy are clean and green energy, they also have the defect of unstable power generation due to their intermittent and volatile nature. For example, in wind power generation, wind speed directly affects the output power and voltage stability of electric energy. When the output power is low, it cannot be connected to the power grid for users to use. Therefore, in order to improve the utilization rate of wind and light energy, wind and light energy can be stored first, and then connected to the power grid for users to use. One of the energy storage methods is to use wind and light energy to compress air, and then use the compressed air to achieve energy conversion and utilization, thereby improving the utilization rate of wind and light energy.

[0003] Thermoelectric power generation system is a system that uses compressed air to generate electricity. In the existing thermoelectric power generation system, vortex tubes can be used to divide compressed air into cold airflow and hot airflow. The temperature difference between the cold and hot airflows is used to achieve heat exchange to drive the turbine to work, and then drive the generator to rotate and generate electricity. However, the cold and hot airflows in this thermoelectric power generation system will be directly discharged after heat exchange, and the remaining cold energy and heat energy of the cold and hot airflows are not utilized, resulting in energy loss and waste. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the temperature difference power generation system in the prior art cannot utilize the surplus cold energy and heat energy of the cold and hot air flows, resulting in energy loss and waste, thereby providing a temperature difference power generation, combined heat and cold supply system and its operation method which can utilize the surplus cold energy and heat energy of the cold and hot air flows to achieve temperature difference power generation.

[0005] To this end, the present invention provides a temperature difference power generation and combined cooling and heating system, comprising:

[0006] An air supply module, wherein the air supply module has a cold air flow outlet and a hot air flow outlet;

[0007] A temperature difference power generation module, the temperature difference power generation module comprising a heat exchange component and a power generation component, the heat exchange component having a condensation side and an evaporation side, the condensation side inlet being connected to the cold air flow outlet, the evaporation side inlet being connected to the hot air flow outlet, the drive end of the heat exchange component being connected to the input end of the power generation component;

[0008] A cooling module, the cooling module is connected to the condensation side outlet, and the cooling module is used to provide cold air;

[0009] A heating module is connected to the evaporation side outlet, and is used to provide hot air.

[0010] Optionally, the heat exchange component includes a first temperature regulating tube and a second temperature regulating tube, the first temperature regulating tube is arranged on the condensation side, one end of the first temperature regulating tube is the condensation side inlet, and the other end is the condensation side outlet, the second temperature regulating tube is arranged on the evaporation side, one end of the second temperature regulating tube is the evaporation side inlet, and the other end is the evaporation side outlet.

[0011] Optionally, the heat exchange assembly further includes a heat exchange element, and the heat exchange element includes a first tube body and a second tube body that are connected to each other, and heat exchange medium is arranged inside the first tube body and the second tube body.

[0012] Optionally, a first sleeve is sleeved on the first tube body, and part of the tube body of the first temperature regulating tube is spirally wound in the first sleeve; a second sleeve is sleeved on the second tube body, and part of the tube body of the second temperature regulating tube is spirally wound in the second sleeve.

[0013] Optionally, both ends of the first temperature regulating tube are placed outside the first sleeve, and both ends of the second temperature regulating tube are placed outside the second sleeve, and both the first temperature regulating tube and the second temperature regulating tube are stretchable flexible tubes.

[0014] Optionally, the condensation side inlet is located at the top end of the condensation side, and the condensation side outlet is located at the bottom end of the condensation side; the evaporation side inlet is located at the bottom end of the evaporation side, and the evaporation side outlet is located at the top end of the evaporation side.

[0015] Optionally, the heat exchange component further includes a turbine, which is disposed at the top of the heat exchange element and located at the junction of the condensation side and the evaporation side.

[0016] Optionally, the cooling module includes a cold air blower, which is connected to the condensation side outlet, and the heating module includes a hot air blower, which is connected to the evaporation side outlet.

[0017] A method for operating a temperature difference power generation and combined cooling and heating system comprises the following steps:

[0018] The air supply module outputs a cold air flow and a hot air flow, the cold air flow enters the condensation side inlet, and the hot air flow enters the evaporation side inlet;

[0019] The hot air flow evaporates the heat exchange medium in the heat exchange element into gas at the evaporation side to drive the power generation component to generate electricity, and the cold air flow condenses the gas into liquid at the condensation side;

[0020] After the hot air flow flows out from the evaporation side outlet to the heating module, the heating module provides hot air, and after the cold air flow flows out from the condensation side outlet to the cooling module, the cooling module provides cold air.

[0021] Optionally, when it is necessary to adjust the temperature of the hot air blown out by the heating module, the temperature of the hot air can be increased / decreased by increasing / shortening the length of the second temperature regulating tube placed in the second sleeve; when it is necessary to adjust the temperature of the cold air blown out by the cooling module, the temperature of the cold air can be lowered / increased by increasing / shortening the length of the first temperature regulating tube placed in the first sleeve.

[0022] The present invention has the following advantages:

[0023] 1. The temperature difference power generation and combined cooling and heating system provided by the present invention divides the compressed air into a cold airflow and a hot airflow through the air supply module. The cold airflow enters the condensing side of the temperature difference power generation module, and the hot airflow enters the evaporating side of the temperature difference power generation module. The heat exchange component uses the temperature difference between the cold airflow and the hot airflow to drive the power generation component to generate electricity. After that, the cold airflow flows out from the condensing side and enters the cooling module. The cooling module can use the remaining cold energy of the cold airflow to provide cold air for the designated area. The hot airflow flows out from the evaporating side and enters the heating module. The heating module can use the remaining heat energy of the hot airflow to provide hot air for the designated area. This system can not only use the temperature difference between the cold and hot airflows to generate electricity, but also make full use of the remaining cold energy of the cold airflow and the remaining heat energy of the hot airflow to discharge cold air and hot air, thereby realizing efficient use of energy without causing energy loss and waste.

[0024] 2. The temperature difference power generation and combined cooling and heating system provided by the present invention, the heat exchange component includes a first temperature regulating tube and a second temperature regulating tube. By adjusting the length of the first temperature regulating tube in the first sleeve, the temperature of the cold air output by the cooling module can be adjusted. By adjusting the length of the second temperature regulating tube in the second sleeve, the temperature of the hot air output by the heating module can be adjusted. By setting the first temperature regulating tube and the second temperature regulating tube, the temperature adjustment of the output cold air and hot air is realized, which is convenient for user operation and can meet the different usage requirements of users.

[0025] 3. The operation method of the temperature difference power generation and combined heat and cold supply system provided by the present invention is to divide the compressed air into cold and hot air flows through the air supply module. The hot air flow enters the evaporation side to evaporate the heat exchange medium in the heat exchange element into gas. The evaporated gas can drive the power generation component to generate electricity. The cold air flow enters the condensation side and can condense the gas into liquid, thus realizing the cyclic change of the state of the heat exchange medium, so that power generation can be carried out continuously. In addition, after the hot air flow enters the heating module from the evaporation side, it can provide hot air to the designated area. After the cold air flow enters the cooling module from the condensation side, it can provide cold air to the designated area, thus realizing the full utilization of cold energy and heat energy without causing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the temperature difference power generation and combined cooling and heating system of the present invention;

[0028] Figure 2 It is a schematic diagram of a temperature difference power generation module in the temperature difference power generation and combined cooling and heating system of the present invention;

[0029] Figure 3 It is a schematic diagram of the first temperature regulating tube being located in the first casing in the temperature difference power generation and combined cooling and heating system of the present invention;

[0030] Figure 4 It is a schematic diagram of the second temperature regulating tube being located in the second casing in the temperature difference power generation and combined cooling and heating system of the present invention.

[0031] Description of reference numerals:

[0032] 1. Air supply module, 101. Cold air flow outlet, 102. Hot air flow outlet, 103. Compressed air storage tank, 104. Pressure regulating valve, 105. Vortex tube;

[0033] 2. heat exchange assembly, 201. first temperature regulating tube, 202. second temperature regulating tube, 203. heat exchange element, 2031. first tube body, 2032. second tube body, 204. first sleeve, 205. second sleeve, 206. turbine;

[0034] 3. Power generation assembly, 301, generator, 302, voltage stabilizer;

[0035] 4. Cooling module;

[0036] 5. Heating module. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] like Figure 1 As shown, it is a preferred embodiment of the temperature difference power generation and combined heat and cold supply system of the present invention. This temperature difference power generation and combined heat and cold supply system can not only divide the compressed air into cold air flow and hot air flow, and use the cold and hot air flow to perform temperature difference power generation, but also can deliver cold air and hot air to users, making full use of the energy of the cold and hot air flow without causing waste.

[0042] The above-mentioned temperature difference power generation and combined cooling and heating system includes: an air supply module 1, a temperature difference power generation module, a cooling module 4 and a heating module 5. The air supply module 1 is used to provide compressed air and divide the compressed air into a cold air flow and a hot air flow. The air supply module 1 has a cold air flow outlet 101 and a hot air flow outlet 102, and the cold air flow flows out from the cold air flow outlet 101, and the hot air flow flows out from the hot air flow outlet 102. Specifically, the air supply module 1 includes: a compressed air storage tank 103, a pressure regulating valve 104 and a vortex tube 105. Compressed air is stored in the compressed air storage tank 103, and compressed air can be added from the air inlet of the compressed air storage tank 103. The air outlet of the compressed air storage tank 103 is connected to the air inlet of the pressure regulating valve 104 through a pipeline, and the air outlet of the pressure regulating valve 104 is connected to the vortex tube 105 through a pipeline. The pressure regulating valve 104 can adjust the pressure of the compressed air entering the vortex tube 105. The vortex tube 105 has a cold air flow outlet 101 and a hot air flow outlet 102. After the compressed air enters the vortex tube 105, a cold air flow with a minimum temperature of -50°C and a hot air flow with a maximum temperature of 120°C can be generated. The cold and hot air flows are discharged from the cold air flow outlet 101 and the hot air flow outlet 102 respectively and enter the temperature difference power generation module.

[0043] The temperature difference power generation module can use cold and hot air flow to generate electricity. Figure 2 As shown, the temperature difference power generation module includes: a heat exchange component 2 and a power generation component 3. The heat exchange component 2 has a condensation side and an evaporation side, the condensation side inlet is connected to the cold air flow outlet 101, the evaporation side inlet is connected to the hot air flow outlet 102, the drive end of the heat exchange component 2 is connected to the input end of the power generation component 3, and the heat exchange component 2 can provide power for the power generation component 3 to drive the power generation component 3 to generate electricity.

[0044] The heat exchange assembly 2 includes a first temperature regulating tube 201, a second temperature regulating tube 202 and a heat exchange element 203. The first temperature regulating tube 201 is arranged on the condensation side, one end of the first temperature regulating tube 201 is the condensation side inlet, and the other end is the condensation side outlet. The second temperature regulating tube 202 is arranged on the evaporation side, one end of the second temperature regulating tube 202 is the evaporation side inlet, and the other end is the evaporation side outlet. The first temperature regulating tube 201 and the second temperature regulating tube 202 are both stretchable flexible tubes. In this embodiment, the first temperature regulating tube 201 and the second temperature regulating tube 202 are preferably metal hoses with good thermal conductivity.

[0045] The heat exchange element 203 includes a first tube body 2031 and a second tube body 2032 which are connected, and the first tube body 2031 is the condensation side, and the second tube body 2032 is the evaporation side. In this embodiment, the first tube body 2031 and the second tube body 2032 have the same structure. The heat exchange element 203 formed by connecting the first tube body 2031 and the second tube body 2032 is annular, and the first tube body 2031 and the second tube body 2032 have good thermal conductivity. Good air tightness should be ensured at the connection between the two, so that a closed cavity is formed inside the heat exchange element 203. Heat exchange medium is arranged inside the first tube body 2031 and the second tube body 2032. The normal pressure boiling point of the heat exchange medium is not higher than 120°C, and the normal pressure melting point is not higher than -50°C. In this embodiment, the heat exchange medium is preferably ethanol.

[0046] Further, such as Figure 3 As shown, the first tube body 2031 is sleeved with a first sleeve 204, the outer surface of the first sleeve 204 has high thermal insulation performance, and the inner surface has high thermal conductivity performance. Part of the tube body of the first temperature regulating tube 201 is spirally wound in the side wall of the first sleeve 204, and the two ends of the first temperature regulating tube 201 are placed outside the first sleeve 204. In addition, the condensation side inlet is located at the top of the condensation side, and the condensation side outlet is located at the bottom of the condensation side.

[0047] like Figure 4 As shown, the second tube body 2032 is sleeved with a second sleeve 205, the outer surface of the second sleeve 205 has high thermal insulation performance, and the inner surface has high thermal conductivity performance. Part of the tube body of the second temperature regulating tube 202 is spirally wound in the side wall of the second sleeve 205, and the two ends of the second temperature regulating tube 202 are placed outside the second sleeve 205. In addition, the evaporation side inlet is located at the bottom end of the evaporation side, and the evaporation side outlet is located at the top end of the evaporation side.

[0048] The hot air flow discharged from the hot air flow outlet 102 enters from the evaporation side inlet and flows from bottom to top in the second temperature regulating tube 202. The hot air flow in the second sleeve 205 of the second temperature regulating tube 202 can evaporate the liquid heat exchange medium into gas. The cold air flow discharged from the cold air flow outlet 101 enters from the condensation side inlet and flows from top to bottom in the first temperature regulating tube 201. The cold air flow in the part of the tube body of the first temperature regulating tube 201 located in the first sleeve 204 can condense the gas into a liquid heat exchange medium. The heat exchange medium can be cyclically transformed from liquid to gaseous states to achieve continuous utilization of the heat exchange medium.

[0049] In addition, the effective working area of ​​the cold and hot air flows during heat exchange with the heat exchange medium can be changed by increasing or decreasing the length of the first temperature regulating tube 201 in the first sleeve 204 and the length of the second temperature regulating tube 202 in the second sleeve 205, thereby changing the temperature difference exchange efficiency. When the first temperature regulating tube 201 is stretched outward, the number of spiral rings of the first temperature regulating tube 201 in the first sleeve 204 is reduced, that is, the length of the first temperature regulating tube 201 in the first sleeve 204 is shortened, the temperature difference exchange efficiency is reduced, and the cold air flow discharged from the condensation side outlet carries more cold energy, even if the cold air temperature is reduced. On the contrary, if the first temperature regulating tube 201 is compressed inward, the length of the first temperature regulating tube 201 in the first sleeve 204 is increased, the temperature difference exchange efficiency is improved, and the cold energy carried by the cold air flow discharged from the condensation side outlet is reduced.

[0050] Similarly, when the second temperature regulating tube 202 is stretched outward, the number of spiral rings of the second temperature regulating tube 202 in the second sleeve 205 is reduced, that is, the length of the second temperature regulating tube 202 in the second sleeve 205 is shortened, the temperature difference exchange efficiency is reduced, and the hot air flow discharged from the evaporation side outlet carries more heat energy. Conversely, if the second temperature regulating tube 202 is compressed inward, the length of the second temperature regulating tube 202 in the second sleeve 205 is increased, the temperature difference exchange efficiency is improved, and the heat energy carried by the hot air flow discharged from the evaporation side outlet is reduced.

[0051] The heat exchange component 2 also includes a turbine 206, which is disposed at the top of the heat exchange element 203 and is located at the junction of the condensation side and the evaporation side, that is, the connection between the top of the first tube 2031 and the top of the second tube 2032. When the heat exchange medium is transformed into a gaseous state under the action of the hot air flow and flows in the heat exchange element 203, it can drive the turbine 206 to rotate, thereby driving the power generation component 3 to generate electricity.

[0052] Furthermore, the power generation component 3 includes a generator 301 and a voltage stabilizer 302. The turbine 206 is connected to the generator 301. When the turbine 206 rotates under the action of steam, it drives the generator 301 to rotate and generate electricity. After the voltage is adjusted by the voltage stabilizer 302, it can be supplied to users.

[0053] The cooling module 4 is connected to the condensation side outlet, and the cooling module 4 is used to provide cold air. Specifically, the cooling module 4 includes a cold air blower, which is connected to the condensation side outlet through a pipeline, and utilizes the remaining cold energy in the cold air flow to discharge the cold air to the designated area. And under the action of the first temperature regulating tube 201, the temperature of the output cold air can be adjusted, and the more cold energy the cold air flow discharged from the condensation side outlet carries, the lower the temperature.

[0054] The heating module 5 is connected to the evaporation side outlet, and the heating module 5 is used to provide hot air. Specifically, the heating module 5 includes a hot air blower, which is connected to the evaporation side outlet through a pipeline, and utilizes the remaining heat energy in the hot air flow to discharge the hot air to the designated area. And under the action of the second temperature regulating tube 202, the temperature of the output hot air can be adjusted. The more heat energy the hot air flow discharged from the evaporation side outlet carries, the higher the temperature.

[0055] This embodiment also provides an operation method of a temperature difference power generation and a combined cooling and heating system. The temperature difference power generation and the combined cooling and heating system have the same structure as in the above embodiment, so they will not be described in detail. The operation method includes the following steps:

[0056] Step 1: The air supply module 1 outputs cold airflow and hot airflow, the cold airflow enters the condensation side inlet, and the hot airflow enters the evaporation side inlet;

[0057] The compressed air in the compressed air storage tank 103 enters the vortex tube 105 through the pressure regulating valve 104. Under the action of the vortex tube 105, the compressed air is divided into a cold air flow and a hot air flow. The cold air flow is discharged from the cold air flow outlet 101 into the condensation side inlet, and the hot air flow is discharged from the hot air flow outlet 102 into the evaporation side inlet.

[0058] Step 2: The hot air flow evaporates the heat exchange medium in the heat exchange element 203 into gas at the evaporation side to drive the power generation component 3 to generate electricity, and the cold air flow condenses the gas into liquid at the condensation side;

[0059] When the hot air flows in the second temperature regulating tube 202, the heat exchange medium in the heat exchange element 203 is heated and evaporated into gas, and the gas vapor will drive the turbine 206 to rotate when it flows, and the turbine 206 will synchronously drive the generator 301 to rotate, so that the generator 301 can generate electricity and output electricity for users. When the cold air flows in the first temperature regulating tube 201, the gas is cooled and condensed into a liquid heat exchange medium. Under the action of the cold and hot air flows, the heat exchange medium realizes the circulation conversion between liquid and gas, so that the generator 301 can continue to rotate and realize continuous power generation.

[0060] Step 3: After the hot air flows out from the evaporation side outlet to the heating module 5, the heating module 5 provides hot air, and after the cold air flows out from the condensation side outlet to the cooling module 4, the cooling module 4 provides cold air.

[0061] After the cold and hot air flows have completed the heat exchange with the heat exchange medium, they are discharged from the condensation side outlet and the evaporation side outlet respectively. The cold air flows into the cooling module 4, and the cold air blower uses the cold air flow to generate cold air and transport it to the designated area; the hot air flows into the heating module 5, and the hot air blower uses the hot air flow to generate hot air and transport it to the designated area.

[0062] The temperature of the cold air output by the cooling module 4 and the temperature of the hot air output by the heating module 5 can be adjusted. When the temperature of the hot air blown out by the heating module 5 needs to be adjusted, the temperature of the hot air can be increased / decreased by increasing / shortening the length of the second temperature regulating tube 202 placed in the second sleeve 205. Specifically, the second temperature regulating tube 202 can be stretched / compressed to change the number of spiral rings in the second sleeve 205, thereby increasing / shortening the length of the second temperature regulating tube 202 placed in the second sleeve 205, changing the heat exchange area, and thus increasing / decreasing the temperature of the hot air.

[0063] When the temperature of the cold air blown out by the cooling module 4 needs to be adjusted, the temperature of the cold air can be lowered / increased by increasing / shortening the length of the first temperature regulating tube 201 placed in the first sleeve 204. Specifically, the first temperature regulating tube 201 can be stretched / compressed to change the number of spiral rings in the first sleeve 204, thereby increasing / shortening the length of the first temperature regulating tube 201 placed in the first sleeve 204, changing the heat exchange area, and thus reducing / increasing the temperature of the hot air.

[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A temperature difference power generation and combined cooling and heating system, characterized in that: include: An air supply module (1), the air supply module (1) having a cold air flow outlet (101) and a hot air flow outlet (102); A temperature difference power generation module, the temperature difference power generation module comprising a heat exchange component (2) and a power generation component (3), the heat exchange component (2) having a condensation side and an evaporation side, the condensation side inlet being connected to the cold air flow outlet (101), the evaporation side inlet being connected to the hot air flow outlet (102), the drive end of the heat exchange component (2) being connected to the input end of the power generation component (3); The heat exchange component (2) comprises: a first temperature regulating tube (201), a second temperature regulating tube (202) and a heat exchange element (203); the first temperature regulating tube (201) is arranged on the condensation side, one end of the first temperature regulating tube (201) is the condensation side inlet, and the other end is the condensation side outlet; the second temperature regulating tube (202) is arranged on the evaporation side, one end of the second temperature regulating tube (202) is the evaporation side inlet, and the other end is the evaporation side outlet; the heat exchange element (203) comprises a first tube body (2031) and a second tube body (2032) which are connected to each other, and a heat exchanger is arranged inside the first tube body (2031) and the second tube body (2032). medium, a first sleeve (204) is sleeved on the first tube body (2031), a portion of the tube body of the first temperature regulating tube (201) is spirally wound in the first sleeve (204), and two ends of the first temperature regulating tube (201) are placed outside the first sleeve (204); a second sleeve (205) is sleeved on the second tube body (2032), a portion of the tube body of the second temperature regulating tube (202) is spirally wound in the second sleeve (205), and two ends of the second temperature regulating tube (202) are placed outside the second sleeve (205), and both the first temperature regulating tube (201) and the second temperature regulating tube (202) are stretchable flexible tubes; The heat exchange component (2) further comprises a turbine (206), wherein the turbine (206) is arranged at the top of the heat exchange element (203) and is located at the junction of the condensation side and the evaporation side; A cooling module (4), the cooling module (4) being connected to the condensation side outlet, the cooling module (4) being used to provide cold air, and the temperature of the cold air output by the cooling module (4) being adjustable by adjusting the length of the first temperature regulating tube (201) located within the first sleeve (204); A heating module (5), the heating module (5) being connected to the evaporation side outlet, the heating module (5) being used to provide hot air, and the temperature of the hot air output by the heating module (5) being adjustable by adjusting the length of the second temperature regulating tube (202) located within the second sleeve (205).

2. The temperature difference power generation and combined cooling and heating system according to claim 1, characterized in that: The condensation side inlet is located at the top end of the condensation side, and the condensation side outlet is located at the bottom end of the condensation side; the evaporation side inlet is located at the bottom end of the evaporation side, and the evaporation side outlet is located at the top end of the evaporation side.

3. The temperature difference power generation and combined cooling and heating system according to any one of claims 1 to 2, characterized in that: The cooling module (4) comprises a cold air blower, which is connected to the condensation side outlet; the heating module (5) comprises a hot air blower, which is connected to the evaporation side outlet.

4. An operating method of the temperature difference power generation and combined cooling and heating system according to any one of claims 1 to 3, characterized in that: The following steps are involved: The air supply module (1) outputs a cold air flow and a hot air flow, the cold air flow enters the condensation side inlet, and the hot air flow enters the evaporation side inlet; The hot air flow evaporates the heat exchange medium in the heat exchange element (203) into gas at the evaporation side to drive the power generation component (3) to generate electricity, and the cold air flow condenses the gas into liquid at the condensation side; After the hot air flow flows out from the evaporation side outlet to the heating module (5), the heating module (5) provides hot air, and after the cold air flow flows out from the condensation side outlet to the cooling module (4), the cooling module (4) provides cold air.

5. The method for using the temperature difference power generation and combined cooling and heating system according to claim 4, characterized in that: When it is necessary to adjust the temperature of the hot air blown out by the heating module (5), the length of the second temperature regulating tube (202) placed in the second sleeve (205) is increased / shortened to increase / lower the temperature of the hot air; when it is necessary to adjust the temperature of the cold air blown out by the cooling module (4), the length of the first temperature regulating tube (201) placed in the first sleeve (204) is increased / shortened to lower / increase the temperature of the cold air.

Images