CN111811154A

CN111811154A - Air conditioner heat exchange system

Info

Publication number: CN111811154A
Application number: CN202010706317.2A
Authority: CN
Inventors: 闻婧; 孙列; 王芳; 杨益平; 王丽丽; 贝苗苗; 方贺帅; 徐剡源
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2020-10-23

Abstract

The invention discloses an air-conditioning heat exchange system, which comprises an evaporator, a condenser and a compressor, wherein the evaporator comprises an evaporator outlet and an evaporator inlet, the condenser comprises a condenser outlet and a condenser inlet, a first pipeline is arranged between the evaporator outlet and the condenser inlet, a second pipeline is arranged between the evaporator inlet and the condenser outlet, the compressor is arranged on the first pipeline, an expansion valve is arranged on the second pipeline close to the evaporator inlet, and the air-conditioning heat exchange system also comprises a first heat exchanger and a second heat exchanger. The invention transmits the heat of the front end of the expansion valve to the front end of the compressor through the first heat exchanger, transmits the cold of the front end of the compressor to the front end of the expansion valve, uses the condensate water of the evaporator to enter a pipeline for cooling the front end of the expansion valve through the second heat exchanger, reduces the temperature of the refrigerant in the pipeline through the front end of the expansion valve to facilitate the heat absorption of the evaporator, and increases the temperature of the refrigerant in the pipeline through the front end of the compressor to facilitate the heat release of the condenser.

Description

Air conditioner heat exchange system

Technical Field

The invention relates to the technical field of air conditioner heat exchange, in particular to an air conditioner heat exchange system.

Background

Heat exchangers are devices used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements, and are an industrial application of convective and conductive heat transfer, which can be classified in different ways. Because the compressor does work, the low-temperature low-pressure gaseous refrigerant is changed into the high-temperature high-pressure gaseous refrigerant, and part of heat is lost in the low-temperature refrigerant to be heated. The high-temperature high-pressure liquid refrigerant after passing through the condenser is higher in temperature, the high-temperature refrigerant directly passes through the expansion valve, then absorbs heat and is vaporized into a low-temperature refrigerant, and part of cold energy is lost in the high-temperature refrigerant for cooling.

The heat exchanger with the structure does not have corresponding temperature reduction and temperature rise structures for the positions of the expansion valve and the compressor, so that the heat absorption of the evaporator and the heat release of the condenser are not facilitated.

Disclosure of Invention

The present invention is directed to solving the above-mentioned problems and disadvantages and to providing a heat exchange system for an air conditioner.

In order to achieve the purpose, the adopted technical scheme is as follows: the utility model provides an air conditioner heat exchange system, includes evaporimeter, condenser and compressor, the evaporimeter includes evaporimeter export and evaporimeter entry, the condenser includes condenser export and condenser entry, is provided with first pipeline between evaporimeter export and condenser entry, is provided with the second pipeline between evaporimeter entry and condenser export, the compressor sets up on first pipeline the second pipeline is close to the evaporimeter entry is provided with the expansion valve, still including first heat exchanger and second heat exchanger.

One end of the first heat exchanger is disposed on a portion of the first pipe line between the outlet of the evaporator and the compressor, and the other end is disposed on a portion of the second pipe line between the expansion valve and the outlet of the condenser, for causing heat exchange between the first pipe line at a front end portion of the compressor and the second pipe line at a front end portion of the expansion valve.

One end of the second heat exchanger is arranged on the part of the second pipeline between the expansion valve and the first heat exchanger, and the other end of the second heat exchanger is arranged in the condensed water storage part of the evaporator, so that the second pipeline at the front end part of the expansion valve exchanges heat with the condensed water of the evaporator.

In the above technical solution, the first heat exchanger is a double pipe heat exchanger.

In the above technical solution, the second heat exchanger is a double-pipe heat exchanger or a finned heat exchanger.

By adopting the technical scheme, the beneficial effects are as follows: the heat at the front end of the expansion valve is conducted to the front end of the compressor through the first heat exchanger, the refrigerant at the front end of the compressor is preheated, meanwhile, the cold quantity at the front end of the compressor is conducted to the front end of the expansion valve, the refrigerant at the front end of the expansion valve is preheated, the condensed water of the evaporator is used for entering a pipeline for cooling the front end of the expansion valve through the second heat exchanger, the temperature is reduced through the front end of the expansion valve, so that the heat absorption of the evaporator is facilitated, and the temperature is increased through the front end of the compressor, so that the; therefore, the heat efficiency and the energy efficiency ratio of the air conditioner are finally improved.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Detailed Description

In order to make the objects, technical features and technical effects of the technical solutions of the present invention more clear, exemplary solutions of embodiments of the present invention will be described below clearly and completely with reference to the accompanying drawings of specific embodiments of the present invention.

Referring to fig. 1, the present application is an air conditioner heat exchange system, including evaporimeter 1, condenser 2 and compressor 3, evaporimeter 1 includes evaporimeter export 1a and evaporimeter entry 1b, condenser 2 includes condenser export 2a and condenser entry 2b, is provided with first pipeline 101 between evaporimeter export 1a and condenser entry 2b, is provided with second pipeline 102 between evaporimeter entry 1b and condenser export 2a, compressor 3 sets up 101 on first pipeline the second pipeline is close to evaporimeter entry 1b department is provided with expansion valve 4. The above are the same parts as the air-conditioning heat exchange system in the prior art, and the detailed description of the specific principles of the above parts is omitted in this application.

The present application is further improved in that the air-conditioning heat exchange system further comprises a first heat exchanger 201 and a second heat exchanger 202, wherein one end of the first heat exchanger 201 is disposed on a portion of the first pipe 101 between the evaporator outlet 1a and the front end of the compressor 3, and the other end is disposed on a portion of the second pipe 102 between the front end of the expansion valve 4 and the condenser outlet 2 a; for causing heat exchange between a first pipe line 101 at a front end portion of the compressor 3 and a second pipe line 102 at a front end portion of the expansion valve 4; the heat at the front end of the expansion valve is conducted to the front end of the compressor through the heat exchange, the refrigerant at the front end of the compressor is preheated, and meanwhile, the refrigerant at the front end of the expansion valve is preheated.

One end of the second heat exchanger 202 is disposed on a portion of the second pipe 102 between the expansion valve 4 and the first heat exchanger 201, and the other end is disposed in the condensed water storage portion 300 of the evaporator 1. For causing the second pipe line 10 at the front end portion of the expansion valve 4 to exchange heat with the condensed water of the evaporator 1. The condensed water of the evaporator is used for entering a pipeline at the front end of the cooling expansion valve through the heat exchange, and the temperature is reduced through the front end of the expansion valve, so that the evaporator absorbs heat.

The invention is based on that the first heat exchanger transfers the heat of the front end of the expansion valve to the front end of the compressor, and the second heat exchanger uses the condensed water of the evaporator to enter a pipeline for cooling the front end of the expansion valve, the temperature is reduced by the front end of the expansion valve, which is favorable for the evaporator to absorb heat, and the temperature is increased by the front end of the compressor, which is favorable for the condenser to release heat.

It should be noted that, in the present application, both ends of the first heat exchanger 201 are respectively located at a portion of the first line 101 between the evaporator outlet 1a and the front end of the compressor 3 and at a portion of the second line 102 between the front end of the expansion valve 4 and the condenser outlet 2 a. That is, the cooling capacity of one end of the first heat exchanger can be transmitted to the other end, and those skilled in the art know how to set the connection mode between the two ends of the first heat exchanger and the corresponding pipelines according to the specific type and structure of the first heat exchanger to achieve the above functions, which is not described in detail herein; similarly, according to the positions of the two ends of the second heat exchanger 202, those skilled in the art also know how to arrange the connection manner between the two ends of the second heat exchanger and the corresponding pipes according to the specific structure and type of the second heat exchanger 202, and will not be described in detail in this application.

Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various changes and modifications may be made to the specific embodiments described above and various combinations of the technical features and structures proposed by the present invention may be made without departing from the concept of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. The utility model provides an air conditioner heat exchange system, includes evaporimeter (1), condenser (2) and compressor (3), evaporimeter (1) is including evaporimeter export (1 a) and evaporimeter entry (1 b), condenser (2) are including condenser export (2 a) and condenser entry (2 b), are provided with first pipeline (101) between evaporimeter export (1 a) and condenser entry (2 b), are provided with second pipeline (102) between evaporimeter entry (1 b) and condenser export (2 a), compressor (3) set up on first pipeline (101) the second pipeline is close to evaporimeter entry (1 b) department is provided with expansion valve (4), its characterized in that: also comprises a first heat exchanger (201) and a second heat exchanger (202),

one end of the first heat exchanger (201) is disposed on a portion of the first pipe line (101) between the evaporator outlet (1 a) and the compressor (3), and the other end is disposed on a portion of the second pipe line (102) between the expansion valve (4) and the condenser outlet (2 a), for causing the first pipe line (101) at the front end portion of the compressor (3) to exchange heat with the second pipe line (102) at the front end portion of the expansion valve (4);

one end of the second heat exchanger (202) is arranged on the part of the second pipeline (102) between the expansion valve (4) and the first heat exchanger (201), and the other end is arranged in a condensed water storage part (300) of the evaporator (1), and the second heat exchanger is used for leading the second pipeline (102) at the front end part of the expansion valve (4) to exchange heat with the condensed water of the evaporator (1).

2. An air conditioning heat exchange system as claimed in claim 1, wherein: the first heat exchanger (201) is a double pipe heat exchanger.

3. An air conditioning heat exchange system as claimed in claim 1, wherein: the second heat exchanger (202) is a double pipe heat exchanger or a finned heat exchanger.