Total heat recovery system capable of improving refrigeration efficiency

Abstract

The utility model provides a total heat recovery system capable of improving refrigeration efficiency. The system comprises a refrigerating system compressor, an efficiency increasing system compressor, a heat recoverer, an efficiency increasing system condensation heat recoverer, a first one-way valve, a second one-way valve, an evaporative condenser refrigerant gas inlet, an evaporative condenser, an evaporative condenser water pump, an evaporative condenser liquid outlet, a liquid storage device, an efficiency increasing system evaporator, an efficiency increasing system electromagnetic valve and an efficiency increasing system expansion valve. After the efficiency is improved, a refrigerating system electromagnetic valve, a refrigerating system expansion valve, a refrigerating system electromagnetic valve and a refrigerating system evaporator improve the heat recovery performance of the refrigerating system, achieve total heat recovery to the maximum extent, reduce the refrigerant liquid supply temperature and improve the refrigerating efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery of refrigeration systems, in particular to a full heat recovery system capable of improving refrigeration efficiency. Background Art

[0002] With the development requirements of carbon reduction and energy conservation, heat recovery in refrigeration systems. Heat recovery in refrigeration systems generally recovers the overheated part of the compressor exhaust, which has less heat and lower temperature. Specifically, it includes the following shortcomings: (1) The compressor exhaust in the refrigeration system contains a large amount of heat. If there is no effective heat recovery system, this heat will be wasted. There may be an improperly designed or aged recovery system, resulting in low heat recovery efficiency; (2) The components of the heat recovery system may fail or be damaged, resulting in the inability to effectively recover the heat in the compressor exhaust; (3) There may be energy loss in the refrigeration system, such as heat leakage during the heat recovery process or energy loss during transmission. Therefore, the existing heat recovery has a low working efficiency and cannot fully recover the heat of the refrigeration system. Utility Model Content

[0003] In view of this, the technical problem to be solved by the present invention is: how to provide a full heat recovery system that can improve refrigeration efficiency to improve heat recovery performance and refrigeration performance.

[0004] To achieve the above-mentioned purpose, the utility model proposes a full heat recovery system capable of improving refrigeration efficiency, which comprises: a refrigeration system compressor, an efficiency-enhancing system compressor, a heat recovery device, an efficiency-enhancing system condensation heat recovery device, a first one-way valve, a second one-way valve, an evaporative condenser refrigerant gas inlet, an evaporative condenser, an evaporative condenser water pump, an evaporative condenser liquid outlet, a liquid storage device, an efficiency-enhancing system evaporator, an efficiency-enhancing system solenoid valve, an efficiency-enhancing system expansion valve, an efficiency-enhancing refrigeration system solenoid valve after efficiency improvement, a refrigeration system expansion valve, a refrigeration system solenoid valve, and a refrigeration system evaporator;

[0005] The refrigeration system compressor is connected to the refrigeration system evaporator, the heat recovery device is connected to the output end of the refrigeration system compressor, the heat recovery device is connected to the evaporative condenser, the evaporative condenser is connected to the liquid reservoir, and the refrigeration system expansion valve and the refrigeration system solenoid valve are connected between the liquid reservoir and the refrigeration system evaporator;

[0006] The efficiency improvement system compressor is connected to the efficiency improvement system evaporator, the output end of the efficiency improvement system compressor is connected to the efficiency improvement system condensation heat recovery device, the efficiency improvement system condensation heat recovery device is connected to the evaporative condenser, and the efficiency improvement system solenoid valve and the efficiency improvement system expansion valve are connected between the liquid storage device and the efficiency improvement system evaporator;

[0007] The input pipeline is connected to the efficiency improvement system condensing heat recovery device and the heat recovery device. One end of the input pipeline is provided with a liquid inlet, and the other end thereof is provided with a liquid outlet. The liquid inlet is provided close to one side of the efficiency improvement system condensing heat recovery device, and the liquid outlet is provided close to one side of the heat recovery device.

[0008] Furthermore, the efficiency improvement system solenoid valve and the efficiency improvement system expansion valve are arranged in series.

[0009] Furthermore, the efficiency-improved refrigeration system solenoid valve and the refrigeration system solenoid valve are arranged in parallel.

[0010] Furthermore, the first one-way valve is connected between the efficiency-improving system condensing heat recovery device and the refrigerant gas inlet of the evaporative condenser, and the second one-way valve is connected between the efficiency-improving system condensing heat recovery device and the liquid storage device.

[0011] Compared with the related art, the utility model proposes a full heat recovery system that can improve the refrigeration efficiency, and its beneficial effects are: improving the heat recovery performance of the refrigeration system and maximizing full heat recovery and reducing the refrigerant supply temperature, thereby improving the refrigeration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a full heat recovery system that can improve refrigeration efficiency in an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Reference Figure 1 As shown, refrigeration system compressor 1, efficiency improvement system compressor 2, heat recovery device 3, efficiency improvement system condensing heat recovery device 4, first one-way valve 5, second one-way valve 6, evaporative condenser 8, refrigerant gas inlet 7, evaporative condenser 8, evaporative condenser water pump 9, evaporative condenser liquid outlet 10, liquid storage tank 11, efficiency improvement system evaporator 12, efficiency improvement system solenoid valve 13, efficiency improvement system expansion valve 14, efficiency improvement system solenoid valve 15, refrigeration system expansion valve 16, refrigeration system solenoid valve 17, refrigeration system evaporator 18.

[0015] The refrigeration system compressor 1 is connected to the refrigeration system evaporator 18, the heat recovery device 3 is connected to the output end of the refrigeration system compressor 1, the heat recovery device 3 is connected to the evaporative condenser 8, the evaporative condenser 8 is connected to the liquid reservoir 11, and the refrigeration system expansion valve 16 and the refrigeration system solenoid valve 17 are connected between the liquid reservoir 11 and the refrigeration system evaporator 18.

[0016] The efficiency improvement system compressor 2 is connected to the efficiency improvement system evaporator 12, the output end of the efficiency improvement system compressor 2 is connected to the efficiency improvement system condensation heat recovery device 4, the efficiency improvement system condensation heat recovery device 4 is connected to the evaporative condenser 8, and the efficiency improvement system solenoid valve 13 and the efficiency improvement system expansion valve 14 are connected between the liquid storage tank 11 and the efficiency improvement system evaporator 12.

[0017] The input pipeline is connected to the efficiency improvement system condensing heat recovery device 4 and the heat recovery device 3. One end of the input pipeline is provided with a liquid inlet, and the other end is provided with a liquid outlet. The liquid inlet is provided close to one side of the efficiency improvement system condensing heat recovery device 4, and the liquid outlet is provided close to one side of the heat recovery device 3.

[0018] Furthermore, the efficiency-enhancing system solenoid valve 13 and the efficiency-enhancing system expansion valve 14 are arranged in series.

[0019] Furthermore, the efficiency-enhanced refrigeration system solenoid valve 15 and the refrigeration system solenoid valve 17 are arranged in parallel.

[0020] Furthermore, the first one-way valve 5 is connected between the efficiency-enhancing system condensing heat recovery device 4 and the refrigerant gas inlet 7 of the evaporative condenser 8 , and the second one-way valve 6 is connected between the efficiency-enhancing system condensing heat recovery device 4 and the liquid storage device 11 .

[0021] 1. Refrigeration system process:

[0022] The refrigeration system compressor 1 inhales the refrigerant gas of the refrigeration system evaporator 18, and after the temperature and pressure of the gas are increased by compression, it enters the evaporative condenser 8 through the heat recovery device 3 and the refrigerant gas inlet 7 of the evaporative condenser 8 for condensation, and the heat is dissipated and condensed into liquid, and the liquid enters the liquid storage tank 11 through the liquid outlet 10 of the evaporative condenser, and the liquid is throttled into a low-temperature and low-pressure refrigerant liquid through the refrigeration system solenoid valve 17 and the refrigeration system expansion valve 16, and absorbs heat in the refrigeration system evaporator 18 to evaporate into gas, and enters the compressor to complete the refrigeration cycle.

[0023] 2. Efficiency improvement system process:

[0024] During the operation of the refrigeration system, the efficiency-enhancing system compressor 2 inhales the refrigerant gas of the efficiency-enhancing system evaporator 12, and after the temperature and pressure of the gas are increased by compression, the gas enters the evaporative condenser 8 through the efficiency-enhancing system condensation heat recovery device 4 or the first one-way valve 5 and the refrigerant gas inlet 7 of the evaporative condenser 8 for condensation, and the heat is dissipated and condensed into liquid. The liquid enters the liquid reservoir 11 through the second one-way valve 6 or the liquid outlet 10 of the evaporative condenser, and the liquid is throttled into a low-temperature and low-pressure refrigerant liquid through the efficiency-enhancing system solenoid valve 13 and the efficiency-enhancing system expansion valve 14, absorbs heat in the efficiency-enhancing system evaporator 12 and evaporates into gas, and enters the efficiency-enhancing system compressor 2 to complete the refrigeration cycle. At the same time, the liquid supply from the liquid reservoir 11 to the refrigeration system evaporator 18 is cooled to improve the refrigeration efficiency.

[0025] 3. Ordinary heat recovery process:

[0026] When the refrigeration system is running, normal temperature water enters the efficiency-enhancing system condensing heat recovery device 4 from the liquid inlet T2, absorbs heat and heats up in the heat recovery device 3 through the efficiency-enhancing system condensing heat recovery device 4, and reaches the user from the liquid outlet T3.

[0027] 4. Full heat recovery process, evaporative condenser 8 does not operate:

[0028] When the refrigeration system is running, normal temperature water enters the efficiency-enhancing system condensation heat recovery device 4 from T2 to be heated therein, and at the same time, the hot gas compressed and discharged by the efficiency-enhancing system is condensed into liquid. The heated hot water further absorbs heat and is heated in the heat recovery device 3, and the high-temperature water reaches the user from the liquid outlet T3.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A total heat recovery system capable of improving refrigeration efficiency, characterized in that: It includes: Refrigeration system compressor, efficiency improvement system compressor, heat recovery device, efficiency improvement system condensation heat recovery device, first one-way valve, second one-way valve, evaporative condenser refrigerant gas inlet, evaporative condenser, evaporative condenser water pump, evaporative condenser liquid outlet, liquid storage device, efficiency improvement system evaporator, efficiency improvement system solenoid valve, efficiency improvement system expansion valve, efficiency improvement system solenoid valve after efficiency improvement, refrigeration system expansion valve, refrigeration system solenoid valve, refrigeration system evaporator; The refrigeration system compressor is connected to the refrigeration system evaporator, the heat recovery device is connected to the output end of the refrigeration system compressor, the heat recovery device is connected to the evaporative condenser, the evaporative condenser is connected to the liquid reservoir, and the refrigeration system expansion valve and the refrigeration system solenoid valve are connected between the liquid reservoir and the refrigeration system evaporator; The efficiency improvement system compressor is connected to the efficiency improvement system evaporator, the output end of the efficiency improvement system compressor is connected to the efficiency improvement system condensation heat recovery device, the efficiency improvement system condensation heat recovery device is connected to the evaporative condenser, and the efficiency improvement system solenoid valve and the efficiency improvement system expansion valve are connected between the liquid storage device and the efficiency improvement system evaporator; The input pipeline is connected to the efficiency improvement system condensing heat recovery device and the heat recovery device. One end of the input pipeline is provided with a liquid inlet, and the other end thereof is provided with a liquid outlet. The liquid inlet is provided close to one side of the efficiency improvement system condensing heat recovery device, and the liquid outlet is provided close to one side of the heat recovery device.

2. The total heat recovery system capable of improving refrigeration efficiency according to claim 1, characterized in that: The efficiency improvement system solenoid valve and the efficiency improvement system expansion valve are arranged in series.

3. The total heat recovery system capable of improving refrigeration efficiency according to claim 1, characterized in that: The efficiency-enhanced refrigeration system solenoid valve and the refrigeration system solenoid valve are arranged in parallel.

4. The total heat recovery system capable of improving refrigeration efficiency according to claim 1, characterized in that: The first one-way valve is connected between the efficiency-enhancing system condensing heat recovery device and the refrigerant gas inlet of the evaporative condenser, and the second one-way valve is connected between the efficiency-enhancing system condensing heat recovery device and the liquid storage device.

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