A working medium circulation system

Abstract

The present invention belongs to the field of new energy conversion technology, specifically a working fluid circulation system. Heat source part I, working fluid phase change part II, the heat source part I is composed of a solar collector, an insulated water tank or an insulated water pool, the solar collector transfers the generated energy to the insulated water tank or the insulated water pool, at this time, the water in the insulated water tank or the insulated water pool has a certain temperature; the working fluid phase change part II is composed of a working fluid box and a high-pressure pump, and the working fluid phase change part II is located in the insulated water tank or the insulated water pool; it is characterized in that: the working fluid phase change part II is connected to the heat energy conversion part III; the heat energy conversion part III is connected to the waste heat recovery part IV; the waste heat recovery part IV is connected to the working fluid condensation recovery part V. The present invention is a working fluid circulation system with a simple structure, low construction cost, higher heat energy conversion efficiency, low maintenance cost and stable operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of novel energy conversion, and specifically relates to a working medium circulation system. Background Art

[0002] Working fluid is the abbreviation of "working substance", which is the medium substance used by various heat engines or thermal equipment to complete the conversion between thermal energy and mechanical energy. Common ones include: combustion gas, water vapor, refrigerant and air. The medium substance that realizes the conversion between thermal energy and mechanical energy is called working fluid. It relies on its state change in the heat engine, such as expansion, to obtain work, and work can only be achieved through working fluid. When gas works in a gas engine and steam works in a steam engine, they convert thermal energy into mechanical energy to generate motive force. Refrigerant consumes a certain amount of mechanical energy in a compression refrigeration device to transfer heat from a low temperature to a high temperature to achieve the purpose of refrigeration. Using a compressor, blower or ventilator to compress air to different degrees to increase its pressure is essentially a process of converting the mechanical energy provided by the prime mover into thermal energy. Since the working fluid has good expansion performance and huge work ability after being heated, it is used as the working fluid of various heat engines.

[0003] In the prior art, the working fluid mainly circulates in the refrigerator system, and continuously exchanges energy with the outside world through the cyclic changes of its own thermal state to achieve the purpose of cooling or heating. However, the device that absorbs external heat sources and undergoes phase change to drive external work, converts thermal energy into mechanical energy, and outputs kinetic energy needs further exploration. To this end, we propose a working fluid circulation work system. Summary of the invention

[0004] The object of the present invention is to provide a working fluid circulation system having a simple structure, low construction cost, higher heat energy conversion efficiency, low maintenance cost and stable operation.

[0005] A working fluid circulation system comprises a heat source part I and a working fluid phase change part II, wherein the heat source part I is composed of a solar thermal collector panel 1 and an insulated water tank 2 or a pool 3, the solar thermal collector panel 1 transfers the generated energy to the insulated water tank 2 or the pool 3, and the water in the insulated water tank 2 or the pool 3 has a certain temperature; the working fluid phase change part II is composed of a working fluid tank 4 and a high-pressure pump 5, and the working fluid phase change part II is located in the insulated water tank 2 or the pool 3; it is characterized in that: the working fluid phase change part II is connected to a heat energy conversion part III; the heat energy conversion part III is connected to a waste heat recovery part IV; the waste heat recovery part IV is connected to a working fluid condensation recovery part V.

[0006] Furthermore, a steam outlet 401 is provided at the upper portion of the working fluid box 4, a throttle valve 403 is provided on the pipeline of the steam outlet 401 located outside the working fluid box 4, a working fluid inlet 402 is provided at the lower portion of the working fluid box 4, the high-pressure pump 5 is connected to the working fluid inlet 402, and a working fluid a is provided inside the working fluid phase change part II, and the working fluid a absorbs the heat transferred from the solar thermal collector panel 1, and the working fluid a is vaporized by the heat.

[0007] Furthermore, according to a working medium circulation system according to claim 1, it is characterized in that the heat energy conversion part III is one or more of a heat engine 6, a steam impeller 7, and a cylinder power machine 8, which converts heat energy into kinetic energy.

[0008] Furthermore, the waste heat recovery part IV is composed of a heat exchanger 9 and a warm water tank 10 , and a first liquid working medium 11 is provided in the warm water tank 10 .

[0009] Furthermore, the working medium condensation recovery part V is composed of a pressure-relief airbag 12 , a condenser 13 and a second liquid working medium 14 . The pressure-relief airbag 12 is located on the upper part of the condenser 13 and is connected to the condenser 13 .

[0010] Furthermore, the first liquid working medium 11 is connected to the high-pressure pump 5 through a pipeline.

[0011] Furthermore, the second liquid working medium 14 is connected to the high-pressure pump 5 through a pipeline.

[0012] Furthermore, the cylinder power machine 8 is composed of a position sensor 81, an electromagnetic reversing valve 82, and a throttle valve 83. The left end of the throttle valve 83 is a high-pressure inlet 84, and the right end of the throttle valve 83 is a low-pressure outlet 85.

[0013] The working medium circulation system provided by the present invention has the following advantages compared with the prior art:

[0014] The working fluid performs work to the outside through phase change cycle in a closed space, and the tail steam of the heat engine or steam turbine or cylinder power machine absorbs a large amount of heat into the warm water pool through the heat exchanger. One or more heat exchange warm water pools can be added as needed. The warm water then passes through the working fluid with a lower boiling point for a second or multiple similar cycles, which improves the conversion rate. The tail gas then enters the condenser until it is completely liquefied. A number of pressure-relief air bags are arranged on the condenser to maintain the balance of internal and external air pressures. The liquefied working fluid is introduced into the working fluid box through a high-pressure pump. The present invention can also use the temperature difference between day and night for river water power generation; it can also be used for a pool covered with a film as a heat source to use the temperature difference between day and night to generate electricity; it can also be used in conjunction with a large insulated water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the workflow of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the cylinder power machine 8 of the present invention.

[0017] In the figure: heat source part I, working fluid phase change part II, heat energy conversion part III, waste heat recovery part IV, solar collector 1, insulation water tank 2, insulation water pool 3, working fluid box 4, steam outlet 401, throttle valve 403, working fluid inlet 402, high pressure pump 5, heat engine 6, steam impeller 7, cylinder power machine 8, position sensor 81, electromagnetic reversing valve 82, throttle valve 83, high pressure inlet 84, low pressure outlet 85, heat exchanger 9, warm water pool 10, first liquid working fluid 11, pressure relief air bag 12, condenser 13, second liquid working fluid 14. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] A working fluid circulation system comprises a heat source part I and a working fluid phase change part II, wherein the heat source part I is composed of a solar thermal collector panel 1 and an insulated water tank 2 or a pool 3, wherein the solar thermal collector panel 1 transmits the generated energy to the insulated water tank 2 or the pool 3, and at this time, the water in the insulated water tank 2 or the pool 3 has a certain temperature; the working fluid phase change part II is composed of a working fluid box 4 and a high-pressure pump 5, and the working fluid phase change part II is located in the insulated water tank 2 or the pool 3; the working fluid phase change part II is connected to a heat energy conversion part III; the heat energy conversion part III is connected to a waste heat recovery part IV; the waste heat recovery part IV is connected to a working fluid condensation recovery part V; a steam outlet 401 is provided at the upper part of the working fluid box 4, a throttle valve 403 is provided on the pipeline located outside the working fluid box 4, and a working fluid inlet is provided at the lower part of the working fluid box 4 Port 402, the high-pressure pump 5 is connected to the working medium inlet 402, and the working medium phase change part II is provided with working medium a inside, and the working medium a absorbs the heat transferred from the solar thermal collector 1, and the working medium a is heated and vaporized, and the vaporized heat energy is converted into kinetic energy through the heat engine 6 or the steam impeller 7 or the cylinder power machine 8, and the heat energy conversion part III is one of the heat engine 6, the steam impeller 7, and the cylinder power machine 8 or a random combination thereof; the waste heat in the heat energy conversion part III enters the heat exchanger 9 and the warm water pool 10, and enters the warm water pool 10. The exhaust gas after the heat energy conversion is cooled in the warm water pool through the heat exchanger 9, and a part of the exhaust gas is liquefied into the first working medium 11, and the residual gas further enters the condenser 13 until it is completely liquefied to form the second working medium 14, and the first working medium 11 and the second working medium 14 are connected to the high-pressure pump 5, and the high-pressure pump 5 pumps the mixed working medium into the working medium box 4 to complete the cycle.

[0020] The working fluid condensation recovery part V is composed of a pressure-relief airbag 12, a condenser 13 and a second liquid working fluid 14. The pressure-relief airbag 12 is located at the upper part of the condenser 13 and is connected to the condenser 13. The first liquid working fluid 11 is connected to the high-pressure pump 5 through a pipeline, and the second liquid working fluid 14 is connected to the high-pressure pump 5 through a pipeline. During operation, the vapor generated by the working fluid a is moderately cooled through the working fluid phase change part II, and the gas enters the heat exchanger 9 through the exhaust pipe. The gas temperature is further reduced, and a large amount of residual heat enters the warm water. Part of the gas is liquefied, and the residual gas continues to move forward until the condenser 13 is completely liquefied. Due to the uncertain external temperature, the air pressure in the pipeline is uncertain. A number of pressure-relief airbags 12 are arranged on the condenser 13. When the air pressure is high, the pressure-relief airbags 12 swell, and when the air pressure is low, it can be sucked into the condenser 13. The working fluid liquid in the condenser 13 can enter the working fluid box through the high-pressure pump, and this cycle is repeated.

[0021] The cylinder power machine 8 is composed of a position sensor 81, an electromagnetic reversing valve 82, and a throttle valve 83. The left end of the throttle valve 83 is a high-pressure inlet 84, and the right end of the throttle valve 83 is a low-pressure outlet 84. When the high-pressure gas enters the left end of the cylinder, the piston moves to the right. When it moves to the rightmost end, the position sensor 81 has a command signal, the electromagnetic reversing valve 82 reverses, the high-pressure gas enters the right end of the cylinder, and the piston moves to the left. When it moves to the leftmost end, the position sensor 81 has a command signal, and the electromagnetic reversing valve 82 reverses, and the cycle is repeated.

[0022] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A working medium cycle work system, comprising a heat source part I and a working medium phase change part II, wherein the heat source part I is composed of a solar heat collecting panel (1) and a heat preservation water tank (2) or a pool (3), and the solar heat collecting panel (1) transfers the generated energy to the heat preservation water tank (2) or the pool (3), and at this time, the water in the heat preservation water tank (2) or the pool (3) has a certain temperature; the working medium phase change part II is composed of a working medium tank (4) and a high-pressure pump (5), and the working medium phase change part II is located in the heat preservation water tank (2) or the pool (3); characterized in that: The working medium phase change part II is connected to the heat energy conversion part III; the heat energy conversion part III is connected to the waste heat recovery part IV; the waste heat recovery part IV is connected to the working medium condensation recovery part V; The upper portion of the working fluid box (4) is provided with a steam outlet (401), a throttle valve (403) is provided on a pipeline located outside the working fluid box (4), a working fluid inlet (402) is provided at the lower portion of the working fluid box (4), a high-pressure pump (5) is connected to the working fluid inlet (402), and a working fluid a is provided inside the working fluid phase change portion II, the working fluid a absorbs heat transferred from the solar thermal collector panel (1), and the working fluid a is heated and vaporized; The working medium condensation recovery part V is composed of a pressure-relief air bag (12) and a condenser (13). The residual gas in the heat exchanger continues to cool down and liquefy after passing through the condenser to form a second liquid working medium (14). The pressure-relief air bag (12) is located on the upper part of the condenser (13) and the pressure-relief air bag (12) is connected to the condenser (13).

2. A working medium circulation system according to claim 1, characterized in that: The heat energy conversion part III is one or more of a heat engine (6), a steam impeller (7), and a cylinder power machine (8), which converts heat energy into kinetic energy.

3. A working medium circulation system according to claim 1, characterized in that: The waste heat recovery part IV is composed of a heat exchanger (9) and a warm water pool (10). The gas in the heat exchanger (9) is cooled and liquefied into a first liquid working medium (11).

4. A working medium circulation system according to claim 3, characterized in that: The first liquid working medium (11) is connected to the high-pressure pump (5) through a pipeline.

5. The working medium circulation system according to claim 1, characterized in that: The second liquid working medium (14) is connected to the high-pressure pump (5) through a pipeline.

6. A working medium circulation system according to claim 2, characterized in that: The cylinder power machine (8) is composed of a position sensor (81), an electromagnetic reversing valve (82), and a throttle valve (83). The left end of the throttle valve (83) is a high-pressure inlet (84), and the right end of the throttle valve (83) is a low-pressure outlet (85).

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