A stepless energy adjustment device, adjustment method and refrigeration system for a compressor

A technology of energy regulation and screw compressor, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems that the stepless capacity regulation technology cannot accurately match changes, and the adjustment response is not fast, so as to increase the processing difficulty and cost , rapid response, and simple processing technology

Active Publication Date: 2019-12-10
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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Problems solved by technology

[0004] In order to solve the problem that the existing small-displacement compressor, the stepless capacity adjustment technology cannot accurately match the change of the actual load, and the adjustment response is not fast, a low-cost, can perfectly match the actual load change point and the adjustment response is fast. Stepless energy adjustment device for stepless capacity adjustment compressor, adjustment method and refrigeration system using the adjustment method

Method used

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  • A stepless energy adjustment device, adjustment method and refrigeration system for a compressor
  • A stepless energy adjustment device, adjustment method and refrigeration system for a compressor

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Embodiment Construction

[0022] Such as figure 1 As shown, the present invention proposes an embodiment of a stepless energy adjustment device for a screw compressor, which includes: a screw compressor 1, a suction pipe 3 communicated with the suction port of the screw compressor, and a screw compressor exhaust Exhaust pipe 6 connected by air port; bypass pipe 4 connecting primary compression chamber 2 of screw compressor 1 with suction pipe 3 of screw compressor, and flow regulating valve 5 arranged on bypass pipe 4 . In this embodiment, the flow regulating valve 5 adopts an ordinary electronic expansion valve; and the first compression chamber 2 of the screw compressor 1 is the closed space of the screw tooth groove where the first suction of the compressor ends. The stepless energy adjustment device also includes:

[0023] The sensor that collects the actual load value data of the refrigeration system, compares the actual load value with the load set value and calculates the control module for the...

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Abstract

The invention discloses a stepless energy regulating device, a regulating method and a refrigeration system of a compressor, wherein the stepless energy regulating device includes: A bypass pipeline and a flow regulating valve arranged on the bypass pipeline. The invention does not need to consider the layout of the oil circuit, the structure of the compressor body is simple, and the processing difficulty and cost are reduced. The flow regulating valve can control the displacement of the compressor in real time, respond in time according to the load change of the refrigeration system, adjust the flow of the bypass fluid, and respond quickly. The electronic expansion valve can control the displacement of the compressor in real time, and can achieve similar stepless energy regulation, which can perfectly fit all load points within the range.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a stepless energy adjustment device for a stepless capacity adjustment compressor, an adjustment method and a refrigeration system using the adjustment method. Background technique [0002] Compressors typically adjust capacity in response to changes in actual load. For example, the capacity adjustment method of screw compressors generally uses plungers, slide valves, and frequency conversion motors for step-by-step adjustment. However, for small displacement screw compressors, the structural configuration of the plunger and the slide valve is relatively complicated, and is often limited by the small body space, so it is very difficult to design and process. The use of variable frequency motors for capacity adjustment will lead to a substantial increase in costs. In order to reduce the cost of the compressor, at the same time bring additional expenditure on frequency c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02F25B41/06F25B41/31
CPCF25B49/022F25B41/31Y02B30/70
Inventor 练浩民肖福佳孟强军安亚洲何汝龙
Owner GREE ELECTRIC APPLIANCES INC
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