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Cold medium controller for fixed-frequency multi-gang air conditioner

A multi-connected air conditioner and controller technology, which is applied to compressors with multiple evaporators, heating and ventilation control systems, heating and ventilation safety systems, etc. Complicated problems, to achieve the effect of low cost, low price, simple structure, and investment saving

Inactive Publication Date: 2003-01-22
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common advantage of the above-mentioned existing patents is variable capacity, but their complex structure, cost, and price are all expensive, so the scope of popularization and application is limited

Method used

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  • Cold medium controller for fixed-frequency multi-gang air conditioner
  • Cold medium controller for fixed-frequency multi-gang air conditioner

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specific Embodiment 1

[0012] The specific embodiment 1 of the present invention is as follows: a refrigerant controller of a fixed-frequency multi-connected air-conditioning system. It consists of a compressor, a gas-liquid separator connected to the return air end of the compressor, an oil separator connected to the air outlet end of the compressor, a four-way reversing valve connected to the gas-liquid separator and the oil separator, and a four-way An outdoor unit composed of an outdoor heat exchanger connected to the reversing valve and a capillary tube connected to the outdoor heat exchanger, an indoor unit composed of an evaporator and an electronic expansion valve connected to the evaporator, and an outdoor unit connected to the indoor unit Consists of piping and power supply. A one-way valve that flows to the electronic expansion valve of the indoor unit is connected in parallel on the capillary of the outdoor unit. There are N indoor units (N is a positive integer). There are N correspon...

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Abstract

The present invention relates to air conditioner technology. The air conditioner system incldues one outdoor unit comprising compressor, gas-liquid separator, oil separator, four-way change valve, heat exchanger and capillary; several indoor units comprising evaporator and electronic expansion valve; connecting pipeline in between and power supply. There are several parallel combinations of non-return valve and capillary in the outdoor unit corresponding to the indoor units separately to control cooling medium flow direction and flow rate, different heating and cooling mode and system load match. The fixed-frequency multigang air conditioner system has low cost.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and more specifically relates to a refrigerant controller for an improved fixed-frequency multi-connected air-conditioning system. Background technique [0002] The terminal equipment of the multi-connected air-conditioning system, that is, the simultaneous utilization rate of each indoor unit is low, so its load varies greatly. If the unit works under low load for a long time, its operating efficiency is low and the operating cost is high; moreover, when the load is particularly low, the unit will start and stop frequently, reducing the service life of the unit. [0003] The fixed-frequency multi-connected air conditioning system itself cannot control the refrigerant through frequency change or internal unloading, so as to achieve the purpose of controlling the cooling or heating effect and adjusting the load, so as to make up for the defect that the capacity of the co...

Claims

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Application Information

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IPC IPC(8): F24F11/02F25B5/02
Inventor 战杰冯志扬宋传勇杜鹏陈俐
Owner HAIER GRP CORP