Air conditioner

Abstract

An air conditioner comprises a compressor (1), a condenser (3) and an evaporator (4) which are connected through a pipeline, and is characterized in that at least one group of first throttling devices (5) and a plurality of groups of second throttling devices (6) are arranged on the pipeline between the condenser (3) and the evaporator (4); the first throttling device (5) is arranged at one end close to the condenser (3), and the second throttling device (6) is arranged at one end close to the evaporator (4); a plurality of evaporation pipeline units (41) are arranged in the evaporator (4) in parallel, and the second throttling device (6) is connected to the evaporation inlet end of each evaporation pipeline unit (41) in series.

Description

Technical Field

[0001] The utility model relates to an air conditioner. Background Art

[0002] Traditional air conditioners are usually composed of a compressor, a four-way valve, a condenser, a capillary throttle and an evaporator connected by a delivery pipeline. The high-temperature and high-pressure gaseous refrigerant output by the compressor enters the condenser through the four-way valve and exchanges heat with the outdoor environment. When cooled below the critical temperature, the refrigerant condenses from gas to liquid; the liquid refrigerant is decompressed and vaporized by the capillary throttle, and the gas-liquid mixed refrigerant after decompression and vaporization enters the evaporator through the delivery pipe, exchanges heat with the indoor environment to achieve refrigeration; then it passes through the four-way valve and is sucked into the compressor to enter the next cycle, completing the refrigeration process.

[0003] Existing throttling devices use capillary throttling devices, electronic expansion valves or nozzles, and their energy efficiency ratio is still relatively low. Summary of the invention

[0004] The utility model aims to provide an air conditioner to further improve the energy efficiency ratio.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an air conditioner, comprising a compressor, a condenser and an evaporator connected by pipelines; at least one group of first throttling devices and multiple groups of second throttling devices are provided on the pipeline between the condenser and the evaporator; the first throttling device is provided at one end close to the condenser, and the second throttling device is provided at one end close to the evaporator; the evaporator is provided with a plurality of evaporation pipeline units in parallel, and the second throttling device is connected in series at the evaporation inlet end of each evaporation pipeline unit.

[0006] In the above scheme, the distance from the second throttling device to the evaporation inlet end of the evaporation pipeline unit is 1-100 cm.

[0007] In the above scheme, the first throttling device is an electronic expansion valve, a capillary tube or a nozzle throttling device.

[0008] In the above solution, the second throttling device is a nozzle throttling device.

[0009] The utility model divides the evaporation pipeline of the evaporator into a plurality of evaporation pipeline units, and connects a second throttling device in series at the evaporation inlet end of each evaporation pipeline unit. The second throttling device provides the most suitable refrigerant amount according to the different positions of the corresponding evaporation pipeline units and the different positions of the windward heat exchange, so as to achieve accurate distribution of the refrigerant, realize the best refrigeration effect, save energy consumption and improve the energy efficiency ratio.

[0010] According to national standards, the air conditioner of the utility model is compared with the traditional existing air conditioner:

[0011] Test machine 1 as attached Figure 2 sheet;

[0012] Test machine 2 as attached Figure 3 sheet.

[0013] The above experiment is a comparative experiment in which an air conditioner is purchased from the market as a traditional air conditioner and then modified according to the scheme described in the utility model. As can be seen from the above table, the energy efficiency ratio is obviously improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of an embodiment of the utility model;

[0015] Figure 2 A table of a test machine 1 for conducting a comparative experiment between the air conditioner of the present invention and a conventional existing air conditioner;

[0016] Figure 3 Table of test machine 2 for comparative experiments between the air conditioner of the present invention and the conventional air conditioner.

[0017] In the above drawings: 1. compressor; 2. four-way valve; 3. condenser; 4. evaporator; 5. first throttling element; 6. second throttling element. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Example: See Figure 1 As shown, an air conditioner:

[0020] Air conditioner, such as Figure 1 , including a compressor 1, a four-way valve 2, a condenser 3 and an evaporator 4 connected by pipelines.

[0021] At least one set of first throttling devices 5 and multiple sets of second throttling devices 6 are provided on the pipeline between the condenser 3 and the evaporator 4; the first throttling device 5 is provided at one end close to the condenser 3, and the second throttling device 6 is provided at one end close to the evaporator 4.

[0022] The evaporator 4 is provided with a plurality of evaporation pipeline units 41 in parallel, and the second throttling device 6 is connected in series at the evaporation inlet end of each evaporation pipeline unit 41 .

[0023] The evaporator pipe unit 41 refers to the pipes in the evaporator 4 artificially divided into multiple groups of units connected in parallel, usually divided according to the location of the evaporator or the windward position, for example, the front side of the evaporator is one unit, the rear side is one unit, or the upper side is one unit and the lower side is one unit.

[0024] In this embodiment, a second throttling device 6 is connected in series at the evaporation inlet end of each evaporation pipe unit 41, and the most suitable refrigerant amount is provided to it according to the position and windward position of the evaporation pipe unit 41, so as to achieve accurate distribution of the refrigerant, realize the best refrigeration effect, save energy consumption, and improve energy efficiency.

[0025] The distance from the second throttling device 6 to the evaporation inlet end of the evaporation pipeline unit 41 is 1-100 cm.

[0026] The first throttling device 5 is an electronic expansion valve, a capillary tube or a nozzle throttling device.

[0027] The second throttling device 6 is a nozzle throttling device, and there are many prior arts on the specific structure of the nozzle throttling device.

[0028] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An air conditioner, comprising a compressor (1), a condenser (3) and an evaporator (4) connected by a pipeline, wherein: At least one set of first throttling devices (5) and a plurality of sets of second throttling devices (6) are provided on the pipeline between the condenser (3) and the evaporator (4); the first throttling devices (5) are provided at one end close to the condenser (3), and the second throttling devices (6) are provided at one end close to the evaporator (4); The evaporator (4) is provided with a plurality of evaporation pipeline units (41) in parallel, and the second throttling device (6) is connected in series at the evaporation inlet end of each evaporation pipeline unit (41).

2. The air conditioner according to claim 1, characterized in that: The distance between the second throttling device (6) and the evaporation inlet end of the evaporation pipeline unit (41) is 1-100 cm.

3. The air conditioner according to claim 1, characterized in that: The first throttling device (5) is an electronic expansion valve, a capillary tube or a nozzle throttling device.

4. The air conditioner according to claim 1, characterized in that: The second throttling device (6) is a nozzle throttling device.

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