Module control method of low-temperature air source heat pump system

A low-temperature air and module control technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of frequent start and stop of units, improve operation stability and reliability, solve liquid shock failures, and provide good user experience Effect

Active Publication Date: 2021-11-12
GUANGDONG NEW ENERGY TECH DEV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] One object of the present invention is to propose a module control method for a low-temperature air source heat pump system, which runs smoothly and solves the problem of frequent start-up and stop of units in the prior art

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  • Module control method of low-temperature air source heat pump system
  • Module control method of low-temperature air source heat pump system
  • Module control method of low-temperature air source heat pump system

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0027] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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Abstract

The invention discloses a module control method of a low-temperature air source heat pump system, belongs to the technical field of low-temperature air source heat pumps, and is designed for solving the problems of compressor faults and the like caused by frequent start and stop of an existing unit. According to the module control method of the low-temperature air source heat pump system, in a loading stage, a maintaining stage, an unloading stage and a sudden stop stage, starting and loading of a low-temperature air source heat pump unit are independently controlled, the numerical value of a starting return difference Tdt is not related to the numerical value of a loading return difference Tld, and the loading return difference Tld is corrected at least in the loading stage. According to the module control method of the low-temperature air source heat pump system, the start-stop frequency of all energy levels of the unit can be reduced, the unit can operate more efficiently, the service life of the unit is prolonged, the operation stability and reliability of the unit are improved, and a compressor is more energy-saving and efficient; and the range of the loading stage can be expanded, so that the unit control is more stable.

Description

technical field [0001] The invention relates to the technical field of low-temperature air-source heat pumps, in particular to a module control method of a low-temperature air-source heat pump system and a low-temperature air-source heat pump system implementing the module control method. Background technique [0002] Because there are similarities in function and working principle, the modular control of the existing low-temperature air-source heat pump mainly adopts the control method and technical route of the normal-temperature air-conditioning modular machine. [0003] However, the low-temperature air source heat pump is mainly used for heating, and the span of the operating environment is large, and the ambient temperature changes so much that it affects the heating capacity of the unit; while the conventional air-conditioning module is mainly used for cooling, and the span of the operating environment is small, and the ambient temperature changes The main impact is th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02
CPCF25B49/02F25B2500/28
Inventor 赵密升刘振乐李建国张远忠徐子超赵林苏昀
Owner GUANGDONG NEW ENERGY TECH DEV
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