Air cooling and evaporative cooling double-cooling efficient heat pump air conditioner

Abstract

The utility model discloses an air cooling and evaporative cooling double-cooling efficient heat pump air conditioner, which relates to the technical field of air conditioners and comprises a compressor, the output end of the compressor is connected with a four-way valve through a pipeline, and three output ports of the four-way valve are respectively connected with an air-cooled condenser, an evaporator and a gas-liquid separator through independent pipelines. And the output end of the air-cooled condenser is connected with the evaporative condenser through a pipeline. According to the utility model, a refrigerant is cooled by the evaporative condenser after being fully cooled by the air-cooled condenser, so that the condensing temperature is greatly reduced, and the energy efficiency ratio of the compressor is greatly improved; and after the refrigerant is fully cooled by the air-cooled air condenser, the condensation temperature of the refrigerant is relatively low, so that the scale formation degree of the circulating cooling water on the evaporation condensation pipe is greatly reduced after the refrigerant is subjected to evaporative condensation, in addition, the evaporative condensation is used as secondary auxiliary condensation, the heat exchange amount is not very large, and the cost of an evaporative condenser is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a high-efficiency heat pump air conditioner with double cooling of air cooling and evaporative cooling. Background Art

[0002] Although evaporative cooling has improved the energy efficiency of air conditioners on the market, the one-time investment is too large, the evaporative cooling produces scale, and the subsequent maintenance cost is high. At the same time, the evaporative cooling air conditioner has no heat pump function. The above three points have always been the fatal and limited products in the market application of evaporative cooling air conditioners. Therefore, the utility model proposes a high-efficiency heat pump air conditioner with air cooling and evaporative cooling dual cooling. Utility Model Content

[0003] Technical issues solved

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a high-efficiency heat pump air conditioner with dual cooling of air cooling and evaporative cooling. On the basis of the original air-cooled chilled water main unit and air-cooled direct expansion air conditioner, the advantages of evaporation are combined with the advantages of evaporation for use in the air-cooled chilled water main unit and air-cooled direct expansion air conditioner. At the same time, the three major shortcomings of evaporation, namely, large one-time investment, scale generation by evaporative cooling, high subsequent maintenance cost, and no heat pump function of evaporative cooling air conditioner, are solved through effective combination and system switching. The three major shortcomings of evaporative cooling in the current market are solved, and the problem of low air-cooled condensation efficiency is also solved. It is an air-conditioning product with a very broad market development.

[0005] Technical Solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air-cooled and evaporative-cooled dual-cooling high-efficiency heat pump air conditioner, comprising a compressor, the output end of the compressor is connected to a four-way valve through a pipeline, the three output ports of the four-way valve are respectively connected to an air-cooled condenser, an evaporator and a gas-liquid separator through separate pipelines, the output end of the air-cooled condenser is connected to an evaporative condenser through a pipeline, the output end of the evaporative condenser is connected to a liquid reservoir through a pipeline, the output end of the evaporator is connected to the liquid reservoir through a pipeline, and the output end of the gas-liquid separator is connected to the liquid reservoir through a pipeline. The channel is connected to the compressor input end. The refrigerant of the present application is cooled sufficiently by the air-cooled condenser and then cooled by the evaporative condenser, so that the condensation temperature is greatly reduced, and the energy efficiency ratio of the compressor is greatly improved; after the refrigerant is fully cooled by the air-cooled condenser, the condensation temperature of the refrigerant is already relatively low, so after the evaporative condensation, the degree of scaling of the circulating cooling water on the evaporative condenser tube is greatly reduced; the evaporative condensation is used as the secondary auxiliary condensation, and its heat exchange capacity does not need to be very large, which greatly reduces the cost of the evaporative condenser; the heat pump function of the conventional air-cooled heat pump machine can be realized, which solves the fatal point that the evaporative air conditioner has no heat pump function.

[0007] Preferably, the air-cooled condenser is also connected to the liquid storage tank via a branch pipe.

[0008] Preferably, a heat pump expansion valve and a one-way valve are also provided on the branch pipeline, and the heat pump expansion valve and the one-way valve are arranged in series.

[0009] Preferably, a one-way valve is provided on the pipeline between the evaporative condenser and the liquid receiver.

[0010] Preferably, a refrigeration expansion valve and a one-way valve are provided on the pipeline between the evaporator and the liquid receiver, and the refrigeration expansion valve and the one-way valve on the pipeline are arranged in parallel.

[0011] Preferably, the air-cooled condenser is equipped with an air-cooled condenser tube fan, and the evaporative condenser is equipped with an evaporative condenser fan.

[0012] Beneficial effects:

[0013] Compared with the prior art, the air-cooling and evaporative-cooling dual-cooling high-efficiency heat pump air conditioner has the following beneficial effects:

[0014] 1. The refrigerant of the utility model is fully cooled by the air-cooled condenser and then cooled by the evaporative condenser, so that the condensation temperature is greatly reduced, and the energy efficiency ratio of the compressor is greatly improved.

[0015] 2. After the refrigerant of the utility model is fully cooled by the air-cooled condenser, the condensation temperature of the refrigerant is relatively low. Therefore, after evaporative condensation, the degree of scaling of the circulating cooling water on the evaporative condensation tube is greatly reduced.

[0016] 3. In the present invention, since the evaporative condensation is used as secondary auxiliary condensation, the heat exchange amount does not need to be very large, which greatly reduces the cost of the evaporative condenser.

[0017] Fourth, the utility model can realize the heat pump function of a conventional air-cooled heat pump machine, solving the fatal problem that an evaporative air conditioner has no heat pump function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the refrigerant refrigeration process of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the process of refrigerant heating in the utility model.

[0021] In the figure:

[0022] 1. Compressor; 2. Four-way valve; 3. Air-cooled condenser; 4. Air-cooled condenser fan; 5. Evaporative condenser; 6. Evaporative condenser fan; 7. Check valve; 8. Heat pump expansion valve; 9. Liquid storage tank; 10. Refrigeration expansion valve; 11. Evaporator; 12. Gas-liquid separator; 13. Branch pipeline. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 to Figure 3 As shown, the utility model provides a technical solution: an air-cooled and evaporative-cooled dual-cooling high-efficiency heat pump air conditioner, comprising a compressor 1, the output end of the compressor 1 is connected to a four-way valve 2 through a pipeline, the three output ports of the four-way valve 2 are respectively connected to an air-cooled condenser 3, an evaporator 11 and a gas-liquid separator 12 through separate pipelines, the air-cooled condenser 3 is equipped with an air-cooled condensing tube fan 4, the output end of the air-cooled condenser 3 is connected to an evaporative condenser 5 through a pipeline, the evaporative condenser 5 is equipped with an evaporative condensing fan 6, the output end of the evaporative condenser 5 is connected to a liquid storage tank 9 through a pipeline, and the output end of the evaporator 11 is connected to the storage tank through a pipeline. The liquid device 9 is connected, and the output end of the gas-liquid separator 12 is connected to the input end of the compressor 1 through a pipeline. The refrigerant of the present application is fully cooled by the air-cooled condenser and then cooled by the evaporative condenser, so that the condensation temperature is greatly reduced, and the energy efficiency ratio of the compressor is greatly improved; after the refrigerant is fully cooled by the air-cooled condenser, the condensation temperature of the refrigerant is already relatively low, so after evaporative condensation, the degree of scaling of the circulating cooling water on the evaporative condenser tube is greatly reduced; evaporative condensation is used as secondary auxiliary condensation, and its heat exchange capacity does not need to be very large, which greatly reduces the cost of the evaporative condenser; the heat pump function of a conventional air-cooled heat pump machine can be realized, which solves the fatal point that the evaporative air conditioner has no heat pump function.

[0025] In this application Figure 2 and Figure 3 The arrows in the figure respectively indicate the working direction of the device when cooling or heating. The air-cooled condenser 3 is also connected to the liquid storage tank 9 through a branch pipe 13. The branch pipe 13 is also provided with a heat pump expansion valve 8 and a one-way valve 7. The heat pump expansion valve 8 and the one-way valve 7 are arranged in series. The one-way valve 7 is arranged on the pipe between the evaporative condenser 5 and the liquid storage tank 9. The refrigeration expansion valve 10 and the one-way valve 7 are arranged on the pipe between the evaporator 11 and the liquid storage tank 9. The refrigeration expansion valve 10 and the one-way valve 7 on the pipe are arranged in parallel.

[0026] Working principle: After the refrigerant is fully cooled by the air-cooled condenser, it is then cooled by the evaporative condenser, which greatly reduces the condensation temperature and greatly improves the energy efficiency of the compressor; after the refrigerant is fully cooled by the air-cooled condenser, the condensation temperature of the refrigerant is already relatively low, so after evaporative condensation, the degree of scaling of the circulating cooling water on the evaporative condenser tube is greatly reduced; evaporative condensation is used as secondary auxiliary condensation, and its heat exchange capacity does not need to be very large, which greatly reduces the cost of the evaporative condenser; it can realize the heat pump function of a conventional air-cooled heat pump machine, solving the fatal point that the evaporative air conditioner has no heat pump function.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat pump air conditioner with dual cooling of air cooling and evaporative cooling, comprising a compressor (1), characterized in that: The output end of the compressor (1) is connected to a four-way valve (2) via a pipeline; the three output ports of the four-way valve (2) are respectively connected to an air-cooled condenser (3), an evaporator (11) and a gas-liquid separator (12) via separate pipelines; the output end of the air-cooled condenser (3) is connected to an evaporative condenser (5) via a pipeline; the output end of the evaporative condenser (5) is connected to a liquid reservoir (9) via a pipeline; the output end of the evaporator (11) is connected to the liquid reservoir (9) via a pipeline; and the output end of the gas-liquid separator (12) is connected to the input end of the compressor (1) via a pipeline.

2. The high-efficiency heat pump air conditioner with air cooling and evaporative cooling according to claim 1, characterized in that: The air-cooled condenser (3) is also connected to the liquid storage tank (9) via a branch pipe (13).

3. The high-efficiency heat pump air conditioner with air cooling and evaporative cooling according to claim 2, characterized in that: The branch pipeline (13) is also provided with a heat pump expansion valve (8) and a one-way valve (7), and the heat pump expansion valve (8) and the one-way valve (7) are arranged in series.

4. The high-efficiency heat pump air conditioner with air cooling and evaporative cooling according to claim 1, characterized in that: A one-way valve (7) is provided on the pipeline between the evaporative condenser (5) and the liquid storage container (9).

5. The high-efficiency heat pump air conditioner with air cooling and evaporative cooling according to claim 1, characterized in that: A refrigeration expansion valve (10) and a one-way valve (7) are arranged on the pipeline between the evaporator (11) and the liquid storage tank (9), and the refrigeration expansion valve (10) and the one-way valve (7) on the pipeline are arranged in parallel.

6. The high-efficiency heat pump air conditioner with air cooling and evaporative cooling according to claim 1, characterized in that: The air-cooled condenser (3) is equipped with an air-cooled condensation tube fan (4), and the evaporative condenser (5) is equipped with an evaporative condensation fan (6).

Images