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Control method for refrigerating system and refrigerating system

A refrigeration system and control method technology, applied in heating and ventilation control systems, heating and ventilation safety systems, applications, etc., can solve problems such as the increase in the overall cost of the refrigeration system, the high cost of pressure sensors, and the increase in user purchase costs and maintenance costs.

Pending Publication Date: 2022-01-04
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of the pressure sensor is relatively high, which increases the overall cost of the refrigeration system, and the purchase cost and maintenance cost of the user also increase accordingly

Method used

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  • Control method for refrigerating system and refrigerating system
  • Control method for refrigerating system and refrigerating system
  • Control method for refrigerating system and refrigerating system

Examples

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Embodiment Construction

[0053] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0054] It should be noted that in the description of the present invention, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance.

[0055] In addition, it should be noted that, in the description of the present invention, unless otherwise specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, or It can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediary, and it can also be intern...

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Abstract

The invention relates to a control method for a refrigerating system and the refrigerating system. The refrigerating system comprises a compressor, a plurality of air suction pressure switches which are arranged at intervals and correspond to different air suction pressures are arranged on an air suction pipe of the compressor, and when the refrigerating system is in a refrigerating mode, the control method comprises the steps that on-off signals of multiple air suction pressure switches are obtained; based on the on-off signal of the air suction pressure switch, a preset air suction pressure interval where the air suction pressure of the compressor falls is determined; and the operation frequency of the compressor is controlled based on the falling preset suction pressure interval. By the adoption of the control method for the refrigerating system, the refrigerating system can conveniently control the operation frequency of the compressor based on the preset suction pressure interval where the suction pressure of the compressor falls when the refrigerating system operates in the refrigerating mode, the control precision is high, and the control cost is low.

Description

technical field [0001] The invention relates to a refrigeration system, in particular to a control method for the refrigeration system and the refrigeration system. Background technique [0002] A refrigeration system generally includes four basic components: a compressor, a first heat exchanger (also called a "condenser"), a throttling mechanism, and a second heat exchanger (also called an "evaporator"). These four basic components are connected in sequence through pipelines to form a refrigeration circuit that allows refrigerants (such as R32, R410A, etc.) to circulate therein. Existing refrigeration systems can be configured for cooling, heating, or a combination of both. In refrigeration mode, the compressor first sucks in low-temperature and low-pressure refrigerant gas, and converts it into high-temperature and high-pressure vapor through compression. The first heat exchanger uses the ambient medium (such as air, water, brine, etc.) to cool the high-temperature and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/54F24F11/65F24F11/64F24F11/86F24F11/61F24F11/84F24F140/12
CPCF24F11/54F24F11/65F24F11/64F24F11/86F24F11/61F24F11/84F24F2140/12
Inventor 李召勇王海胜张铭褚中良高明
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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