Electronic expansion valve temperature control device convenient to use

Abstract

The utility model relates to the technical field of interval control, in particular to an electronic expansion valve temperature control device convenient to use. According to the technical scheme, the device comprises a compressor, an evaporator and an economizer body, the evaporator is installed at the input end of the left side of the compressor through a pipeline, an electronic expansion valve body is fixedly installed at the input end of the bottom of the evaporator through a pipeline, and a liquid storage device is installed at the input end of the right side of the electronic expansion valve body through a pipeline; and an economizer main body is mounted at the input end of the top of the liquid storage device through a pipeline. By means of the liquid storage device, when few refrigerants are needed during low-temperature operation, redundant refrigerants can enter the liquid storage device to be stored, when many refrigerants are needed during normal-temperature operation, more refrigerants stored in the liquid storage device can enter the evaporator to be evaporated and cooled, and therefore the adjusting effect is achieved; the problem of double-unit complexity of interval control during large temperature is solved, and meanwhile resource investment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of interval control, in particular to an electronic expansion valve temperature control device that is easy to use. Background Art

[0002] Zone control can divide the entire space into multiple independent zones. The temperature and other environmental parameters of each zone can be controlled individually to meet the needs of different zones and save energy. Through zone control, users can flexibly control the temperature according to the needs and usage patterns of different zones to improve comfort and reduce unnecessary energy consumption.

[0003] The existing low-temperature working conditions and normal temperature working conditions cannot be met at the same time in many cases. When discharging water at two set temperatures, since the working range of the expansion valve cannot meet such a large range of loads, two industrial chillers with different working conditions are generally used to meet the requirements, resulting in lower efficiency of the device. Utility Model Content

[0004] The purpose of the utility model is to provide an electronic expansion valve temperature control device that is easy to use, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an easy-to-use electronic expansion valve temperature control device, comprising a compressor, an evaporator and an economizer body, the evaporator is installed at the left input end of the compressor through a pipeline, the electronic expansion valve body is fixedly installed at the bottom input end of the evaporator through a pipeline, the liquid reservoir is installed at the right input end of the electronic expansion valve body through a pipeline, the economizer body is installed at the top input end of the liquid reservoir through a pipeline, the external oil separator is installed at the top output end of the compressor through a pipeline, and the condenser is installed at the right output end of the external oil separator through a pipeline.

[0006] Preferably, a hand valve is installed at the bottom output end on the left side of the compressor through a pipeline, and an oil filter is fixedly installed on the right side of the hand valve through a pipeline.

[0007] Preferably, a capillary tube is installed at the bottom input end of the evaporator through a pipeline, and a solenoid valve body is installed at the right input end of the capillary tube through a pipeline.

[0008] Preferably, an economizer expansion valve is installed at the right input end of the bottom of the economizer body through a pipeline, and an economizer solenoid valve is installed at the right input end of the economizer expansion valve through a pipeline.

[0009] Preferably, a drying filter is installed at the bottom output end of the condenser through a pipeline, and a sight glass is installed at the bottom output end of the drying filter through a pipeline.

[0010] Preferably, the compressor is equipped with high and low pressure sensors via wires.

[0011] Preferably, an oil cooler is installed at the bottom of the compressor through a wire, and copper ball valves are installed at the output end and the input end on the left side of the oil cooler through pipelines.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the equipped liquid reservoir, when less refrigerant is needed during low-temperature operation, the excess refrigerant can be stored in the liquid reservoir. When more refrigerant is needed during normal temperature operation, more refrigerant stored in the liquid reservoir can enter the evaporator for evaporation and cooling, thereby playing a regulating role, meeting the cumbersome problem of dual-unit temperature control over a large time interval, while reducing resource investment.

[0014] 2. After coming into contact with the refrigerated or frozen object through the evaporator, it will absorb the heat in the frozen object, thereby lowering its temperature and taking away the heat. In this process, the refrigerant will turn back into a low-temperature and low-pressure gas. When operating at normal temperature, the refrigerant can meet the requirements of large refrigerant demand and high evaporator temperature under normal temperature conditions after passing through the throttling of the electronic expansion valve body and the capillary tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a flow chart of the utility model.

[0016] In the figure: 1. compressor; 101. manual valve; 102. oil filter; 2. evaporator; 201. capillary tube; 202. solenoid valve body; 3. electronic expansion valve body; 4. liquid storage tank; 5. economizer body; 501. economizer expansion valve; 502. economizer solenoid valve; 6. condenser; 601. drying filter; 602. sight glass; 7. external oil separator; 8. high and low pressure sensors; 9. oil cooler; 901. copper ball valve. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] like Figure 1 As shown, the utility model proposes an easy-to-use electronic expansion valve temperature control device, comprising a compressor 1, an evaporator 2 and an economizer body 5, the evaporator 2 is installed at the left input end of the compressor 1 through a pipeline, the electronic expansion valve body 3 is fixedly installed at the bottom input end of the evaporator 2 through a pipeline, the liquid reservoir 4 is installed at the right input end of the electronic expansion valve body 3 through a pipeline, the economizer body 5 is installed at the top input end of the liquid reservoir 4 through a pipeline, the external oil separator 7 is installed at the top output end of the compressor 1 through a pipeline, and the condenser 6 is installed at the right output end of the external oil separator 7 through a pipeline.

[0019] A hand valve 101 is installed at the bottom output end on the left side of the compressor 1 through a pipeline, and an oil filter 102 is fixedly installed on the right side of the hand valve 101 through a pipeline.

[0020] A capillary tube 201 is installed at the bottom input end of the evaporator 2 through a pipeline, and a solenoid valve body 202 is installed at the right input end of the capillary tube 201 through a pipeline.

[0021] An economizer expansion valve 501 is installed at the right input end of the bottom of the economizer body 5 through a pipeline, and an economizer solenoid valve 502 is installed at the right input end of the economizer expansion valve 501 through a pipeline.

[0022] A drying filter 601 is installed at the bottom output end of the condenser 6 through a pipeline, and a sight glass 602 is installed at the bottom output end of the drying filter 601 through a pipeline.

[0023] The compressor 1 is equipped with high and low pressure sensors 8 via wires.

[0024] An oil cooler 9 is installed at the bottom of the compressor 1 through a wire, and a copper ball valve 901 is installed at the output end and the input end on the left side of the oil cooler 9 through a pipeline.

[0025] The working principle of the practical and easy-to-use electronic expansion valve temperature control device is as follows: the refrigerant is compressed from a low-pressure state to a high-pressure state by the compressor 1, and then the high-pressure refrigerant is transmitted to the inside of the condenser 6. The condenser 6 exchanges heat between the high-pressure refrigerant and the external environment, and releases heat to the external environment at the same time, so that the refrigerant is gradually cooled and converted into a high-pressure liquid during the condensation process. After the high-pressure liquid refrigerant enters the inside of the evaporator 2 through the pipeline, the pressure will drop sharply, so that the refrigerant evaporates into low-pressure steam. During the evaporation process, the refrigerant absorbs heat from the surrounding environment, thereby causing the internal temperature of the evaporator 2 to decrease, and the low-pressure steam refrigerant contacts the refrigerated or frozen object through the evaporator 2. After that, it will absorb the heat in the frozen object, thereby lowering its temperature and taking away the heat. In this process, the refrigerant will turn into a low-temperature and low-pressure gas again. When operating at normal temperature, the refrigerant can meet the requirements of large refrigerant demand and high temperature of the evaporator 2 under normal temperature conditions after being throttled by the electronic expansion valve body 3 and the capillary 201. At the same time, through the equipped liquid reservoir 4, when less refrigerant is needed during low-temperature operation, the excess refrigerant can enter the liquid reservoir 4 for storage. When more refrigerant is needed during normal temperature operation, more refrigerant stored in the liquid reservoir 4 can enter the evaporator 2 for evaporation and cooling, thereby playing a role of regulation, meeting the cumbersome problem of dual-unit control over large temperature time intervals, and reducing resource investment at the same time.

[0026] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An easy-to-use electronic expansion valve temperature control device, characterized in that: The invention comprises a compressor (1), an evaporator (2) and an economizer body (5); the evaporator (2) is installed at the left input end of the compressor (1) via a pipeline; the electronic expansion valve body (3) is fixedly installed at the bottom input end of the evaporator (2) via a pipeline; the liquid reservoir (4) is installed at the right input end of the electronic expansion valve body (3) via a pipeline; the economizer body (5) is installed at the top input end of the liquid reservoir (4) via a pipeline; the external oil separator (7) is installed at the top output end of the compressor (1) via a pipeline; and the condenser (6) is installed at the right output end of the external oil separator (7) via a pipeline.

2. The electronic expansion valve temperature control device according to claim 1 is characterized in that: A hand valve (101) is installed at the bottom output end on the left side of the compressor (1) via a pipeline, and an oil filter (102) is fixedly installed on the right side of the hand valve (101) via a pipeline.

3. The electronic expansion valve temperature control device according to claim 1 is characterized in that: A capillary tube (201) is installed at the bottom input end of the evaporator (2) through a pipeline, and a solenoid valve body (202) is installed at the right input end of the capillary tube (201) through a pipeline.

4. The electronic expansion valve temperature control device according to claim 1 is characterized in that: An economizer expansion valve (501) is installed at the right input end of the bottom of the economizer body (5) via a pipeline, and an economizer solenoid valve (502) is installed at the right input end of the economizer expansion valve (501) via a pipeline.

5. The electronic expansion valve temperature control device according to claim 1 is characterized in that: A drying filter (601) is installed at the bottom output end of the condenser (6) through a pipeline, and a sight glass (602) is installed at the bottom output end of the drying filter (601) through a pipeline.

6. The easy-to-use electronic expansion valve temperature control device according to claim 1, characterized in that: The compressor (1) is equipped with high and low pressure sensors (8) via wires.

7. The easy-to-use electronic expansion valve temperature control device according to claim 1, characterized in that: An oil cooler (9) is installed at the bottom of the compressor (1) via a wire, and copper ball valves (901) are installed at the left output end and input end of the oil cooler (9) via pipelines.

Images