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Superheat degree control electronic expansion valve system

An electronic expansion valve and superheat control technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems affecting regulation performance and achieve the effects of improving refrigeration capacity, reducing temperature difference, and reducing dry consumption

Active Publication Date: 2018-11-02
XINAN JIANGSU ELECTRIC APPLIANCE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing thermal expansion valve, when the ambient temperature is low, the pressure change of the temperature-sensing medium inside the temperature-sensing bulb is greatly reduced, which seriously affects the regulation performance

Method used

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  • Superheat degree control electronic expansion valve system
  • Superheat degree control electronic expansion valve system
  • Superheat degree control electronic expansion valve system

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] see Figure 1~4 , in the present invention, an electronic expansion valve system for superheat control, the system includes an electronic expansion valve controller 1, a first sensor 2, an electronic expansion valve 3, an evaporator 4, a second sensor 5, a third sensor 6, a compressor 7. The evaporator 4 includes the evaporator inlet position a, the evaporator wind side upstream position b, and the evaporator outlet position c. The first sensor 2 is con...

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Abstract

The invention relates to a superheat degree control electronic expansion valve system. The superheat degree control electronic expansion valve system comprises an electronic expansion valve controller, an evaporator inlet refrigerant temperature sensor, an electronic expansion valve, an evaporator, a temperature sensor, an evaporator outlet refrigerant temperature sensor and a compressor; and thetemperature sensor is used for detecting the air inlet temperature of the evaporator, the evaporator inlet refrigerant temperature sensor is used for detecting the inlet temperature of the evaporatorrefrigerant side, the evaporator outlet refrigerant temperature sensor is used for detecting the outlet temperature of the evaporator refrigerant side, and the electronic expansion valve controller can set the heat exchange temperature difference of the evaporator and the superheat degree of the evaporator. According to the system, a set of algorithm is arranged in the electronic expansion valve controller, a stepping motor of the electronic expansion valve controller is controlled through the algorithm and the stepping motor is driven to move forwards and backwards through a threaded drivingvalve needle, and therefore a flow area of a valve port is changed.

Description

technical field [0001] The invention relates to the field of microcomputer control components of a refrigeration system, in particular to an electronic expansion valve system for superheat control. Background technique [0002] With the rapid development of electronic and microcomputer control technology, microcomputer control technology has penetrated into the refrigeration and air-conditioning industry, and some executive components suitable for microcomputer control of refrigeration systems have been developed, and electronic expansion valves are one of them. It has many advantages, especially it can be combined with other intelligent control components to realize optimal control of the system, and the energy saving effect is obvious. In the existing thermal expansion valve, when the ambient temperature is low, the pressure change of the temperature-sensing medium inside the temperature-sensing bulb is greatly reduced, which seriously affects the regulation performance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F25B41/06F25B41/34
CPCF25B49/02F25B2600/2513F25B2700/2117F25B2700/21172F25B41/31Y02B30/70
Inventor 曹传源操志强
Owner XINAN JIANGSU ELECTRIC APPLIANCE CO LTD
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