Phase change heat and cold generator

Abstract

Phase-change cooling and heating generator, the working medium storage box is loaded with working medium refrigerant, and the left and right sides of the working medium storage box are connected through the first working medium pipe and the second working medium pipe respectively. The first working medium pipe is connected to the working medium refrigerant inlet pipe of the evaporator coil, and the second working medium pipe is connected to the working medium refrigerant outlet pipe of the condenser coil; the first working medium pipe is equipped with a working medium refrigerant solenoid valve, and the second working medium pipe is equipped with a generator solenoid valve. The steam inlet of the steam turbine generator is connected to the working medium refrigerant inlet pipe of the condenser coil through a pipeline, and the steam outlet of the steam turbine generator is connected to the working medium refrigerant outlet pipe of the evaporator coil through a pipeline. In addition to the functions of ice storage and heat storage, it can also generate electricity with thermal energy, thereby improving the utilization efficiency of the stored thermal energy.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation, and more particularly to a generator in an energy storage system. Background Art

[0002] The city electricity is divided into peak electricity and valley electricity. In order to save electricity costs, there is currently an ice and heat storage device on the market. It uses valley electricity to turn water into ice, and then releases the cold stored in the ice to the central air-conditioning system during the day. At the same time, it also has the function of phase change to store thermal energy. Its disadvantage is that the weather in the south is hot, and the thermal energy stored in the equipment cannot be fully utilized sometimes. So we envisioned designing a device to convert the stored thermal energy into electrical energy. At present, there is no such device on the market. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies of the prior art and to provide a phase-change heat and cold generator which, in addition to having the functions of storing ice and heat, can also generate electricity from thermal energy, thereby improving the utilization efficiency of the stored thermal energy.

[0004] The technical solutions of the present invention are as follows:

[0005] A phase-change cold and heat generator, comprising a condenser coil, an evaporator coil, a compressor and an expansion valve of an air-conditioning system, an air-conditioning solenoid valve is installed on the pipe loop of the condenser coil, the evaporator coil, the compressor and the expansion valve of the air-conditioning system, a working medium refrigerant is loaded into a working medium storage box, and the left and right sides of the working medium storage box are respectively connected through a first working medium pipe and a second working medium pipe, the first working medium pipe is connected to an inlet working medium refrigerant pipe of the evaporator coil, and the second working medium pipe is connected to an outlet working medium refrigerant pipe of the condenser coil;

[0006] A working fluid refrigerant solenoid valve is installed on the first working fluid pipe, a generator solenoid valve is installed on the second working fluid pipe, the steam inlet of the steam turbine generator is connected to the working fluid refrigerant inlet pipe of the condenser coil through a pipeline, and the steam outlet of the steam turbine generator is connected to the working fluid refrigerant outlet pipe of the evaporator coil through a pipeline.

[0007] The evaporator coil is placed in an ice storage bin, which is filled with water. The evaporator coil, the ice storage bin and the water form an evaporative ice storage bin.

[0008] The condenser coil is placed in a heat storage box, which is filled with phase-change heat storage material. The condenser coil, the heat storage box and the phase-change heat storage material form a condensing phase-change heat storage device.

[0009] The expansion valve is a one-way valve.

[0010] The control cabinet controls the operation of the air conditioning solenoid valve, the working medium refrigerant solenoid valve and the generator solenoid valve.

[0011] The beneficial effects of the present invention are:

[0012] In addition to the functions of storing ice and heat, it can also generate electricity using thermal energy, thus improving the utilization efficiency of stored thermal energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] In the figure: 1. Evaporator coil; 2. Condenser coil; 3. Compressor; 4. Expansion valve; 5. Working fluid storage box; 6. Air conditioning solenoid valve; 7. Working fluid refrigerant solenoid valve; 8. Generator solenoid valve; 9. Steam turbine generator; 10. Ice storage box; 11. Heat storage box. DETAILED DESCRIPTION

[0015] Example: See Figure 1 As shown, the phase-change cold and heat generator comprises a condenser coil 2, an evaporator coil 1, a compressor 3 and an expansion valve 4 of an air-conditioning system, an air-conditioning solenoid valve 6 is installed on the pipe loop of the condenser coil 2, the evaporator coil 1, the compressor 3 and the expansion valve 4 of the air-conditioning system, a working medium refrigerant is loaded into a working medium storage box 5, and the left and right sides of the working medium storage box 5 are respectively connected through a first working medium pipe 51 and a second working medium pipe 52, the first working medium pipe 51 is connected to the working medium refrigerant inlet pipe of the evaporator coil 1, and the second working medium pipe 52 is connected to the working medium refrigerant outlet pipe of the condenser coil 2;

[0016] A working fluid refrigerant solenoid valve 7 is installed on the first working fluid pipe 51, and a generator solenoid valve 8 is installed on the second working fluid pipe 52. The steam inlet of the steam turbine generator 9 is connected to the working fluid refrigerant inlet pipe of the condenser coil 2 through a pipeline, and the steam outlet of the steam turbine generator 9 is connected to the working fluid refrigerant outlet pipe of the evaporator coil 1 through a pipeline.

[0017] The evaporator coil 1 is placed in an ice storage bin 10, which is filled with water. The evaporator coil 1, the ice storage bin 10 and the water form an evaporative ice storage bin.

[0018] The condenser coil 2 is placed in a heat storage tank 11, and the heat storage tank 11 is filled with a phase change heat storage material. The condenser coil 2, the heat storage tank 11 and the phase change heat storage material form a condensing phase change heat storage device.

[0019] The expansion valve 4 is a one-way valve.

[0020] The control cabinet controls the operation of the air conditioning solenoid valve 6 , the working medium refrigerant solenoid valve 7 and the generator solenoid valve 8 .

[0021] Working principle: The compressor 3 discharges the working medium at 100°C, and the working medium enters the condensing phase change heat storage device to melt the phase change heat storage material. After the heat energy is stored in the phase change heat storage material, the phase change heat storage material condenses into blocks, which are like the phase change heat storage material in the hand warmer. Then the working medium cools down to -5°C through the expansion valve 4 and enters the evaporator coil 1 to condense the water in the evaporating ice storage device into ice. Generally, the steam turbine generator 9 is not used to generate electricity.

[0022] The working medium refrigerant solenoid valve 7 is sometimes opened and sometimes closed. When the working medium refrigerant solenoid valve 7 is opened, the working medium refrigerant in the working medium storage box 5 can be supplemented into the pipe circuit of the air-conditioning system.

[0023] When the working fluid refrigerant solenoid valve 7 and the generator solenoid valve 8 are opened at the same time, the air conditioning solenoid valve 6 is closed, and the working fluid refrigerant in the working fluid storage tank 5 flows through the condenser coil 2 to become steam, then enters the steam turbine generator 9 to generate electricity, and then flows into the evaporator coil 1 to cool into liquid and flow back to the working fluid storage tank 5. When the working fluid refrigerant flows through the condenser coil 2, the phase change heat storage material is triggered to dissipate heat, so that the working fluid refrigerant in the condenser coil 2 heats up and vaporizes. The triggering method can be a vibrator fixed on the heat storage tank 11. When the vibrator moves, the phase change heat storage material generates heat and releases heat. The applicant of this patent has applied for a formula of phase change heat storage material, which can store heat and release thermal energy.

Claims

1. A phase-change cold and heat generator, comprising a condenser coil (2), an evaporator coil (1), a compressor (3) and an expansion valve (4) of an air-conditioning system, wherein an air-conditioning solenoid valve (6) is installed on a pipe loop of the condenser coil (2), the evaporator coil (1), the compressor (3) and the expansion valve (4) of the air-conditioning system, and characterized in that: The working medium storage box (5) is filled with working medium refrigerant. The left and right sides of the working medium storage box (5) are connected through a first working medium pipe (51) and a second working medium pipe (52). The first working medium pipe (51) is connected to the working medium refrigerant inlet pipe of the evaporator coil (1), and the second working medium pipe (52) is connected to the working medium refrigerant outlet pipe of the condenser coil (2). A working medium refrigerant electromagnetic valve (7) is installed on the first working medium pipe (51), a generator electromagnetic valve (8) is installed on the second working medium pipe (52), a steam inlet of the steam turbine generator (9) is connected to the working medium refrigerant inlet pipe of the condenser coil (2) through a pipeline, and a steam outlet of the steam turbine generator (9) is connected to the working medium refrigerant outlet pipe of the evaporator coil (1) through a pipeline.

2. The phase change cold and heat generator according to claim 1, characterized in that: The evaporator coil (1) is placed in an ice storage bin (10), the ice storage bin (10) is filled with water, and the evaporator coil (1), the ice storage bin (10) and the water form an evaporative ice storage bin.

3. The phase change cold and heat generator according to claim 1, characterized in that: The condenser coil (2) is placed in a heat storage box (11), the heat storage box (11) is filled with a phase-change heat storage material, and the condenser coil (2), the heat storage box (11) and the phase-change heat storage material form a condensing phase-change heat storage device.

4. The phase change cold and heat generator according to claim 1, characterized in that: The expansion valve (4) is a one-way valve.

5. The phase change cold and heat generator according to claim 1, characterized in that: The control cabinet controls the operation of the air conditioning solenoid valve (6), the working medium refrigerant solenoid valve (7) and the generator solenoid valve (8).

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