Efficient energy-saving condensing unit capable of recovering heat energy

Abstract

The utility model provides an efficient energy-saving condensing unit capable of recovering heat energy, and belongs to the technical field of condensing units. The efficient energy-saving condensing unit capable of recovering heat energy comprises a condenser, an evaporator is arranged on one side of the condenser, an expansion valve is arranged at the bottom of the condenser, an electrical cabinet is arranged at the top of the condenser, a compressor is arranged at the top of the evaporator, the condenser comprises a condensing cavity, and a gas collecting plate is fixedly installed at the top of the inner side of the condensing cavity. A liquid collecting plate is fixedly installed at the bottom of the inner side of the condensation cavity, a plurality of micropore flat pipes are communicated between the gas collecting plate and the liquid collecting plate, temperature difference power generation assemblies are fixedly installed on the two sides of the middle of each micropore flat pipe, each temperature difference power generation assembly comprises a hot end ceramic chip, and a temperature difference galvanic couple power generation chip is fixedly installed on one side of each hot end ceramic chip; according to the utility model, the heat energy generated by the work of the device can be converted into the electric energy for recycling, so that the device has higher practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of condensing units, and in particular to a heat-recoverable, high-efficiency, energy-saving condensing unit. Background Art

[0002] Condensing units are a type of mechanical equipment commonly used in industrial fields such as cooling and refrigeration. They are mainly composed of components such as condensers, expansion valves, and evaporators. Among them, the compressor is its main component, which can compress the low-pressure and low-temperature working gas to increase the temperature and pressure, so that the working gas in the condenser is cooled and condensed into liquid. The expansion valve can control the flow of the working liquid, thereby reducing its pressure and temperature. After the working liquid passes through the expansion valve, the evaporator can evaporate the working liquid to form steam, thereby absorbing external heat to reduce the evaporator temperature and complete the cycle.

[0003] Based on the above, the inventors have found the following problems: existing condensing units generate heat during use, and usually discharge the heat directly into the air, resulting in energy waste and inconvenience in use.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a heat-recoverable and energy-saving condensing unit is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the embodiment of the utility model provides a heat-recoverable and energy-efficient condensing unit, which is specifically implemented through the following technical solutions:

[0006] A heat-recoverable and energy-efficient condensing unit comprises a condenser, an evaporator is arranged on one side of the condenser, an expansion valve is arranged at the bottom of the condenser, an electrical box is arranged at the top of the condenser, a compressor is arranged on the top of the evaporator, the condenser comprises a condensing chamber, a gas collecting plate is fixedly installed on the top of the inner side of the condensing chamber, and a liquid collecting plate is fixedly installed on the bottom of the inner side of the condensing chamber, a plurality of microporous flat tubes are connected between the gas collecting plate and the liquid collecting plate, thermoelectric power generation components are fixedly installed on both sides of the middle of the microporous flat tube, the thermoelectric power generation component comprises a hot-end ceramic, the hot-end ceramic is fixedly connected to the microporous flat tube, a thermoelectric couple generator is fixedly installed on one side of the hot-end ceramic, and a cold-end ceramic is fixedly installed on one side of the thermoelectric couple generator.

[0007] The beneficial effect of adopting the above further scheme is that a number of microporous flat tubes are connected between the gas collecting plate and the liquid collecting plate, so that the high-pressure vaporized condensing agent can enter the liquid collecting plate from the gas collecting plate through the microporous flat tubes. In the process, the condensing agent liquefies, condenses and releases heat. The hot-end ceramic pieces are fixedly connected to the microporous flat tubes, so that the heat generated during the liquefaction and condensation of the condensing agent is transferred to the hot-end ceramic pieces. A thermocouple generator is fixedly installed on one side of the hot-end ceramic piece, and a cold-end ceramic piece is fixedly installed on one side of the thermocouple generator piece, so that the cold-end ceramic piece is in contact with the condensed water inside the condensation chamber, so that a temperature difference occurs at both ends of the thermocouple generator piece, thereby achieving the effect of power generation and realizing the recovery of heat energy.

[0008] Furthermore, first heat dissipation fins are fixedly installed on the side surfaces of both ends of the microporous flat tube, and second heat dissipation fins are fixedly installed on the side surfaces of the cold end ceramic plate.

[0009] The beneficial effect of adopting the above further scheme is that a first heat dissipation fin is fixedly installed on the sides of both ends of the microporous flat tube, which is convenient for increasing the heat dissipation area of ​​the microporous flat tube, thereby improving the heat dissipation and condensation effect of the microporous flat tube, and a second heat dissipation fin is fixedly installed on the side of the cold end ceramic tile, which is convenient for increasing the heat dissipation area of ​​the cold end ceramic tile, facilitating cooling water to cool the cold end ceramic tile, and improving the temperature difference power generation effect.

[0010] Furthermore, a cooling water inlet is provided at one end of the condensation chamber, and a cooling water outlet is provided at the other end of the condensation chamber.

[0011] The beneficial effect of adopting the above further scheme is that a cooling water inlet is provided at one end of the condensation chamber, and a cooling water outlet is provided at the other end of the condensation chamber, which is convenient for connecting external pipes, so that cooling water enters the condensation chamber from the cooling water inlet for cooling, and the cooling water that completes the cooling work is discharged from the cooling water outlet to form a circulation.

[0012] Furthermore, a plurality of liquid baffles are fixedly installed inside the condensing chamber, and the liquid baffles are arranged in an equidistant and staggered manner.

[0013] The beneficial effect of adopting the above further scheme is that a plurality of folding liquid plates are fixedly installed inside the condensing chamber, and the folding liquid plates are arranged in an equidistant and staggered manner, so as to extend the path of the cooling water flowing through the condensing chamber, thereby improving the effect of the cooling water absorbing heat from the microporous flat tubes and cooling the cold end ceramic pieces.

[0014] Furthermore, the electrical box is arranged at one end of the top of the condensing chamber, and a control module, a power connection module and a battery are arranged inside the electrical box.

[0015] The beneficial effect of adopting the above further scheme is that an electrical box is set at one end of the top of the condensing chamber, and a control module, a power connection module and a battery are arranged inside the electrical box. The power connection module and the battery are electrically connected to the temperature difference power generation component, and the battery can be removed and replaced, which is convenient for controlling the operation of the device and storing and using the electric energy produced by the temperature difference power generation component.

[0016] Furthermore, the compressor comprises a compressor body, one end of the compressor body is provided with a low-pressure intake pipe, and the other end of the low-pressure intake pipe is connected to the evaporator.

[0017] The beneficial effect of adopting the above further scheme is that a low-pressure suction pipe is provided at one end of the compressor body, and the other end of the low-pressure suction pipe is connected to the evaporator, so that the evaporator can evaporate the liquid condensing agent into a gaseous state and then be sucked into the compressor body for compression.

[0018] Furthermore, a high-pressure exhaust pipe is provided at one end of the compressor body away from the low-pressure intake pipe, and the high-pressure exhaust pipe is connected to the air collecting plate.

[0019] The beneficial effect of adopting the above further scheme is that a high-pressure exhaust pipe is provided at one end of the compressor body away from the low-pressure intake pipe, and the high-pressure exhaust pipe is connected to the gas collecting plate, so that the compressed condensing agent gas can enter the gas collecting plate.

[0020] Furthermore, the expansion valve comprises an expansion valve body, one end of the expansion valve body is provided with a liquid inlet pipe, and the liquid inlet pipe is connected to a liquid collecting plate.

[0021] The beneficial effect of adopting the above further solution is that a liquid inlet pipe is provided at one end of the expansion valve body, and the liquid inlet pipe is connected to the liquid collecting plate, so that the liquid condensate inside the liquid collecting plate can flow to the expansion valve body.

[0022] Furthermore, a liquid outlet pipe is provided at one end of the expansion valve body away from the liquid inlet pipe, and the liquid outlet pipe is communicated with the evaporator.

[0023] The beneficial effect of adopting the above further solution is that a liquid outlet pipe is provided at one end of the expansion valve body away from the liquid inlet pipe, and the liquid outlet pipe is connected to the evaporator, so that the expansion valve body can control the liquid condensate to enter the evaporator.

[0024] The beneficial effects of the utility model are as follows: the utility model obtains a heat energy recoverable and efficient energy-saving condensing unit through the above-mentioned design. This heat energy recoverable and efficient energy-saving condensing unit has a plurality of microporous flat tubes connected between the gas collecting plate and the liquid collecting plate, so that the high-pressure vaporized condensing agent can enter the liquid collecting plate from the gas collecting plate through the microporous flat tubes. In the process, the condensing agent liquefies, condenses and releases heat. The hot end ceramic pieces are fixedly connected to the microporous flat tubes, so that the heat generated in the process of liquefaction and condensation of the condensing agent is transferred to the hot end ceramic pieces. A thermocouple generator is fixedly installed on one side of the hot end ceramic piece, and a cold end ceramic piece is fixedly installed on one side of the thermocouple generator piece, so that the cold end ceramic piece is in contact with the condensed water inside the condensation chamber, so that a temperature difference occurs at both ends of the thermocouple generator piece, thereby achieving the effect of power generation and realizing the recovery of heat energy. The utility model can convert the heat energy generated by the operation of the device into electrical energy for recycling and utilization, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 Schematic diagram of the three-dimensional structure of the heat energy recovery and high-efficiency energy-saving condensing unit provided by the utility model Figure 1 ;

[0027] Figure 2 Schematic diagram of the three-dimensional structure of the heat energy recovery and high-efficiency energy-saving condensing unit provided by the utility model Figure 2 ;

[0028] Figure 3 A schematic diagram of the internal three-dimensional structure of the condensation chamber provided by the utility model;

[0029] Figure 4 An exploded diagram of the temperature difference power generation assembly provided by the utility model;

[0030] Figure 5 This is a cutaway stereoscopic view of the condensation chamber provided by the utility model.

[0031] In the figure: 101, condenser; 10101, condensing chamber; 10102, cooling water inlet; 10103, cooling water outlet; 10104, deflection plate; 10105, gas collecting plate; 10106, liquid collecting plate; 10107, microporous flat tube; 10108, first cooling fin; 102, evaporator; 103, compressor; 10301, compressor body; 10302, low-pressure suction pipe; 10303, high-pressure exhaust pipe; 104, electrical box; 105, expansion valve; 10501, expansion valve body; 10502, liquid inlet pipe; 10503, liquid outlet pipe; 106, temperature difference power generation component; 10601, hot end ceramic; 10602, temperature difference electric couple generator; 10603, cold end ceramic; 10604, second cooling fin. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1 of the utility model heat energy recoverable high efficiency energy saving condensing unit

[0035] The utility model provides the following technical solutions: Figure 1-Figure 5As shown, a heat-recoverable high-efficiency energy-saving condensing unit comprises a condenser 101, an evaporator 102 is arranged on one side of the condenser 101, an expansion valve 105 is arranged at the bottom of the condenser 101, an electrical box 104 is arranged at the top of the condenser 101, a compressor 103 is arranged at the top of the evaporator 102, the condenser 101 comprises a condensing chamber 10101, a gas collecting plate 10105 is fixedly installed at the top of the inner side of the condensing chamber 10101, and a liquid collecting plate 10106 is fixedly installed at the bottom of the inner side of the condensing chamber 10101, a plurality of microporous flat tubes 10107 are connected between the gas collecting plate 10105 and the liquid collecting plate 10106, and the gas collecting plate 10105 and the liquid collecting plate 10106 are connected to each other through the gas collecting plate 10105. A plurality of microporous flat tubes 10107 are connected between the plate 10105 and the liquid collecting plate 10106, so that the high-pressure vaporized condensing agent can enter the liquid collecting plate 10106 from the gas collecting plate 10105 through the microporous flat tubes 10107. During the process, the condensing agent liquefies, condenses and releases heat. The thermoelectric power generation components 106 are fixedly installed on both sides of the middle of the microporous flat tubes 10107. The thermoelectric power generation components 106 include hot end ceramic pieces 10601, which are fixedly connected to the microporous flat tubes 10107. The hot end ceramic pieces 10601 are fixedly connected to the microporous flat tubes 10107, so that the heat generated during the liquefaction and condensation of the condensing agent can be transferred. To the hot end ceramic 10601, a thermocouple generator 10602 is fixedly installed on one side of the hot end ceramic 10601, and a cold end ceramic 10603 is fixedly installed on one side of the thermocouple generator 10602. Through the thermocouple generator 10602 fixedly installed on one side of the hot end ceramic 10601, and the cold end ceramic 10603 fixedly installed on one side of the thermocouple generator 10602, the cold end ceramic 10603 is convenient for contacting with the condensed water inside the condensation chamber 10101, so that a temperature difference occurs at both ends of the thermocouple generator 10602, thereby achieving the effect of power generation and realizing the recovery of heat energy. The microporous flat tube The first heat dissipation fins 10108 are fixedly installed on the sides of both ends of 10107. The first heat dissipation fins 10108 are fixedly installed on the sides of both ends of the microporous flat tube 10107 to increase the heat dissipation area of ​​the microporous flat tube 10107, thereby improving the heat dissipation and condensation effect of the microporous flat tube 10107. The second heat dissipation fins 10604 are fixedly installed on the side of the cold-end ceramic piece 10603. The second heat dissipation fins 10604 are fixedly installed on the side of the cold-end ceramic piece 10603 to increase the heat dissipation area of ​​the cold-end ceramic piece 10603, facilitate cooling water to cool down the cold-end ceramic piece 10603, and improve the temperature difference power generation effect.

[0036] Embodiment 2 of the utility model heat energy recoverable high efficiency energy saving condensing unit

[0037] Reference Figure 1-Figure 4As shown, a cooling water inlet 10102 is provided at one end of the condensing chamber 10101, and a cooling water outlet 10103 is provided at the other end of the condensing chamber 10101. The cooling water inlet 10102 is provided at one end of the condensing chamber 10101, and the cooling water outlet 10103 is provided at the other end of the condensing chamber 10101, so as to facilitate the connection of external pipes, so that cooling water enters the condensing chamber 10101 from the cooling water inlet 10102 for cooling, and the cooling water that has completed the cooling work is discharged from the cooling water outlet 10103 to form a cycle. A plurality of liquid folding plates 10104 are fixedly installed inside the condensing chamber 10101, and the liquid folding plates 10104 are equidistantly arranged in sequence. 4. The folding plates 10104 are arranged in an equidistant and staggered manner, so as to extend the path of the cooling water flowing through the condensing chamber 10101, thereby improving the effect of the cooling water absorbing heat from the microporous flat tube 10107 and cooling the cold end ceramic piece 10603. The electrical box 104 is arranged at one end of the top of the condensing chamber 10101, and a control module, a power connection module and a battery are arranged inside the electrical box 104. The electrical box 104 is arranged at one end of the top of the condensing chamber 10101, and a control module, a power connection module and a battery are arranged inside the electrical box 104. The power connection module and the battery are electrically connected to the temperature difference power generation component 106, and the battery can be disassembled and replaced, so as to control the operation of the device and store and use the electric energy produced by the temperature difference power generation component 106.

[0038] Embodiment 3 of the utility model heat energy recoverable high efficiency energy saving condensing unit

[0039] Reference Figure 1-Figure 3As shown, the compressor 103 includes a compressor body 10301, a low-pressure intake pipe 10302 is provided at one end of the compressor body 10301, and the other end of the low-pressure intake pipe 10302 is communicated with the evaporator 102, so that the evaporator 102 evaporates the liquid condensing agent into a gaseous state and then sucks it into the compressor body 10301 for compression, and a high-pressure exhaust pipe 10303 is provided at one end of the compressor body 10301 away from the low-pressure intake pipe 10302, and the high-pressure exhaust pipe 10303 is communicated with the gas collecting plate 10105, so that the ... The condensing agent gas enters the gas collecting plate 10105, and the expansion valve 105 includes an expansion valve body 10501. A liquid inlet pipe 10502 is provided at one end of the expansion valve body 10501, and the liquid inlet pipe 10502 is connected to the liquid collecting plate 10106. A liquid inlet pipe 10502 is provided at one end of the expansion valve body 10501, and the liquid inlet pipe 10502 is connected to the liquid collecting plate 10106, so that the liquid condensate inside the liquid collecting plate 10106 flows to the expansion valve body 10501. A liquid outlet pipe 10503 is provided at one end of the expansion valve body 10501 away from the liquid inlet pipe 10502, and the liquid outlet pipe 10503 is connected to the evaporator 102. A liquid outlet pipe 10503 is provided at one end of the expansion valve body 10501 away from the liquid inlet pipe 10502, and the liquid outlet pipe 10503 is connected to the evaporator 102, so that the expansion valve body 10501 can control the liquid condensate to enter the evaporator 102.

[0040] Specifically, the working principle of this heat-recoverable and energy-saving condensing unit is as follows: when in use, a low-pressure suction pipe 10302 is provided at one end of the compressor body 10301, and the other end of the low-pressure suction pipe 10302 is connected to the evaporator 102, so that the evaporator 102 can evaporate the liquid refrigerant into a gaseous state and then be sucked into the compressor body 10301 for compression. A plurality of microporous flat tubes 10107 are connected between the gas collecting plate 10105 and the liquid collecting plate 10106, so that the high-pressure vaporized refrigerant can pass through the microporous flat tubes 10107 from the gas collecting plate 10105 into the liquid collecting plate 10106. In the process, the condensing agent liquefies, condenses and releases heat, and is fixedly connected to the microporous flat tubes 10107 through the hot end ceramic piece 10601, so that the heat generated during the condensing process of the condensing agent can be condensed. The heat energy is transferred to the hot-end ceramic piece 10601, and a thermocouple generator 10602 is fixedly installed on one side of the hot-end ceramic piece 10601, and a cold-end ceramic piece 10603 is fixedly installed on one side of the thermocouple generator 10602, so that the cold-end ceramic piece 10603 is in contact with the condensed water inside the condensation chamber 10101, so that a temperature difference occurs at both ends of the thermocouple generator 10602, thereby achieving the effect of power generation and realizing the recovery of heat energy. A cooling water inlet 10102 is provided at one end of the condensation chamber 10101, and a cooling water outlet 10103 is provided at the other end of the condensation chamber 10101, so as to facilitate the connection of external pipes, so that the cooling water enters the condensation chamber 10101 from the cooling water inlet 10102 for cooling, and the cooling water that completes the cooling work is discharged from the cooling water outlet 10103. Water is discharged from the water outlet 10103 to form a circulation, and a plurality of liquid folding plates 10104 are fixedly installed inside the condensing chamber 10101. The liquid folding plates 10104 are equidistantly and staggeredly arranged in sequence, so as to extend the path of the cooling water flowing through the condensing chamber 10101, thereby improving the effect of the cooling water absorbing heat from the microporous flat tube 10107 and cooling the cold-end ceramic piece 10603. A first heat dissipation fin 10108 is fixedly installed on the side surfaces of both ends of the microporous flat tube 10107, so as to improve the heat dissipation area of ​​the microporous flat tube 10107, thereby improving the heat dissipation and condensation effect of the microporous flat tube 10107. A second heat dissipation fin 10604 is fixedly installed on the side surfaces of the cold-end ceramic piece 10603, so as to improve the heat dissipation area of ​​the cold-end ceramic piece 10603, so as to facilitate the cooling water to The cold end ceramic piece 10603 is cooled to improve the effect of temperature difference power generation. It is arranged at one end of the top of the condensation chamber 10101 through the electrical box 104. A control module, a power connection module and a battery are arranged inside the electrical box 104. The power connection module and the battery are electrically connected to the temperature difference power generation component 106. The battery can be removed and replaced, which is convenient for controlling the operation of the device and storing and using the electric energy produced by the temperature difference power generation component 106. A liquid inlet pipe 10502 is arranged at one end of the expansion valve body 10501. The liquid inlet pipe 10502 is connected to the liquid collecting plate 10106, which is convenient for the liquid condensate inside the liquid collecting plate 10106 to flow to the expansion valve body 10501. A liquid outlet pipe 10503 is arranged at one end of the expansion valve body 10501 away from the liquid inlet pipe 10502.The liquid outlet pipe 10503 is connected to the evaporator 102, so that the expansion valve body 10501 can control the liquid condensate to enter the evaporator 102.

[0041] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Heat-recoverable and energy-efficient condensing unit, characterized in that: The invention comprises a condenser (101), wherein an evaporator (102) is provided on one side of the condenser (101), an expansion valve (105) is provided at the bottom of the condenser (101), an electrical box (104) is provided at the top of the condenser (101), a compressor (103) is provided at the top of the evaporator (102), the condenser (101) comprises a condensation chamber (10101), a gas collecting plate (10105) is fixedly installed at the top of the inner side of the condensation chamber (10101), and a liquid collecting plate (10106) is fixedly installed at the bottom of the inner side of the condensation chamber (10101), and the gas collecting plate A plurality of microporous flat tubes (10107) are connected between (10105) and the liquid collecting plate (10106), and thermoelectric power generation components (106) are fixedly installed on both sides of the middle of the microporous flat tube (10107), and the thermoelectric power generation component (106) includes a hot end ceramic sheet (10601), and the hot end ceramic sheet (10601) is fixedly connected to the microporous flat tube (10107), and a thermoelectric couple generator sheet (10602) is fixedly installed on one side of the hot end ceramic sheet (10601), and a cold end ceramic sheet (10603) is fixedly installed on one side of the thermoelectric couple generator sheet (10602).

2. The heat-recoverable and energy-efficient condensing unit according to claim 1, characterized in that: The first heat dissipation fins (10108) are fixedly installed on the sides of both ends of the microporous flat tube (10107), and the second heat dissipation fins (10604) are fixedly installed on the sides of the cold end ceramic plate (10603).

3. The heat-recoverable and energy-efficient condensing unit according to claim 1, characterized in that: A cooling water inlet (10102) is provided at one end of the condensation chamber (10101), and a cooling water outlet (10103) is provided at the other end of the condensation chamber (10101).

4. The heat-recoverable and energy-efficient condensing unit according to claim 3, characterized in that: A plurality of liquid deflection plates (10104) are fixedly installed inside the condensation chamber (10101), and the liquid deflection plates (10104) are arranged in an equidistant and staggered manner.

5. The heat-recoverable high-efficiency energy-saving condensing unit according to claim 1, characterized in that: The electrical box (104) is arranged at one end of the top of the condensation chamber (10101), and a control module, a power connection module and a battery are arranged inside the electrical box (104).

6. The heat-recoverable high-efficiency energy-saving condensing unit according to claim 1, characterized in that: The compressor (103) comprises a compressor body (10301), one end of the compressor body (10301) is provided with a low-pressure intake pipe (10302), and the other end of the low-pressure intake pipe (10302) is connected to the evaporator (102).

7. The heat-recoverable high-efficiency energy-saving condensing unit according to claim 6, characterized in that: A high-pressure exhaust pipe (10303) is provided at one end of the compressor body (10301) away from the low-pressure intake pipe (10302), and the high-pressure exhaust pipe (10303) is connected to the air collecting plate (10105).

8. The heat-recoverable, high-efficiency, energy-saving condensing unit according to claim 1, characterized in that: The expansion valve (105) comprises an expansion valve body (10501), one end of the expansion valve body (10501) is provided with a liquid inlet pipe (10502), and the liquid inlet pipe (10502) is connected to the liquid collecting plate (10106).

9. The heat-recoverable, high-efficiency, energy-saving condensing unit according to claim 8, characterized in that: A liquid outlet pipe (10503) is provided at one end of the expansion valve body (10501) away from the liquid inlet pipe (10502), and the liquid outlet pipe (10503) is connected to the evaporator (102).

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