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Natural cooling air conditioning unit and control method thereof

A technology of natural cooling and air conditioning units, applied in air conditioning systems, heating and ventilation control systems, heating methods, etc., it can solve problems such as a single natural cooling source, and achieve the effect of broadening the operating range, ensuring accuracy and stability and reliability.

Pending Publication Date: 2022-04-12
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, although the natural cooling air-conditioning units in the prior art can use the natural cooling source for cooling, they can only use a single natural cooling source

Method used

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  • Natural cooling air conditioning unit and control method thereof

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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the natural cooling air conditioner unit 10 of the embodiment of the present invention includes a compressor 1, a condenser 2, an evaporator 3, an air source heat exchanger 4, a natural cooling heat exchanger 5 and a water source heat exchanger 6, wherein the compression The machine 1 is connected to the condenser 2 and the evaporator 3 respectively, and the pipeline connecting the condenser 2 and the evaporator 3 is provided with a first control valve 7, the inlet and outlet of the air source heat exchanger 4 and the inlet of the water source heat exchanger 6 Both the outlet and the outlet correspond to the outlet and the inlet of the natural cooling heat exchanger 5 are connected to each other through a connecting pipeline, and a second control valve is arranged on the connecting pipeline between the inlet of the air source heat exchanger 4 and the outlet of the natural cooling heat exchanger 5 8. A third control valve 9 is provided on the c...

Embodiment 2

[0044] Such as figure 1 As shown, the control method of the natural cooling air-conditioning unit in the embodiment of the present invention is implemented by using the above-mentioned natural cooling air-conditioning unit 10, and includes the following steps: S01, when the water inlet temperature of the natural cooling heat exchanger 5 and the water source heat exchanger When the temperature difference between the inlet water temperature of 6 is not greater than the first preset temperature, and the temperature difference between the outlet water temperature supplied to the user by the evaporator 3 and the ambient temperature is not greater than the second preset temperature, the first control valve 7 is opened, and the second The second control valve 8 and the third control valve 9 are closed; S02, when the temperature difference between the water inlet temperature of the natural cooling heat exchanger 5 and the water source heat exchanger 6 is greater than the first preset t...

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Abstract

The invention provides a natural cooling air conditioning unit and a control method thereof, a compressor of the unit is respectively connected with a condenser and an evaporator, and a first control valve is arranged on a pipeline for connecting the condenser and the evaporator; an inlet and an outlet of the air source heat exchanger and an inlet and an outlet of the water source heat exchanger correspond to an outlet and an inlet of the natural cooling heat exchanger and are connected through connecting pipelines, and a second control valve is arranged on the connecting pipeline between the inlet of the air source heat exchanger and the outlet of the natural cooling heat exchanger. A third control valve is arranged on a connecting pipeline between an inlet of the water source heat exchanger and an outlet of the natural cooling heat exchanger, a water inlet of the evaporator is connected with a water outlet of the natural cooling heat exchanger through a connecting pipeline, a water inlet of the natural cooling heat exchanger is connected with a user side water return port, and a water outlet of the evaporator is connected with a user side water supply port. Various cold sources can be utilized, switching among different cold sources can be achieved, the operation range of natural cooling refrigeration is widened, and more energy conservation and high efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of natural cooling air-conditioning unit control, in particular to a natural cooling air-conditioning unit and a control method thereof. Background technique [0002] At present, although the natural cooling air-conditioning units in the prior art can utilize the natural cooling source for cooling, they can only use a single natural cooling source. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, to provide a natural cooling air-conditioning unit and its control method, which can use a variety of cold sources, and can switch between different cold sources, broadening the range of using natural cooling operating range, thus making the unit more energy-efficient and efficient. [0004] In order to solve the problems of the technologies described above, the technical solution proposed by the present invention is: ...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24F11/64F24F11/65F24F11/84F24F13/30F24F140/20
Inventor 李顺意周进钟海玲
Owner GREE ELECTRIC APPLIANCES INC
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