Control system and method for condenser and water chilling unit

A control system and chiller technology, applied in the condenser control system and chiller field, can solve the problems of high operating cost, complex control system structure, poor control effect, etc., and achieve the effect of saving operating cost and improving capacity and energy efficiency.

Inactive Publication Date: 2018-05-08
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above control system has complex structure, high operating cost and poor control effect

Method used

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  • Control system and method for condenser and water chilling unit
  • Control system and method for condenser and water chilling unit
  • Control system and method for condenser and water chilling unit

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Experimental program
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Embodiment Construction

[0028] The invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 1 As shown, the evaporative cooling chiller includes a compressor 1 , an oil separator 2 , a condenser 9 and an expansion valve 3 connected in sequence. A dry filter 5 and an economizer 6 are also arranged between the condenser and the expansion valve. Refrigerant flow direction:

[0030] Compressor 1—oil separator 2—condenser 9—ball valve 4—dry filter 5—ball valve 4—economizer 6—expansion valve 3—shell and tube evaporator 7—compressor 1.

[0031] The condenser 9 adopts a tower-type evaporative condenser. When the water supply is insufficient, the temperature of the water coming out of the water collecting tray 10 will increase, and the outlet water temperature can be effectively reduced by appropriately increasing the cooling water supply.

[0032] In this embodiment, the condenser 9 includes three spray cooling towers, and a water c...

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PUM

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Abstract

The invention discloses a control system and method for a condenser and a water chilling unit. The condenser comprises at least one spraying type cooling tower, a water pan and a water pump, wherein the water pan and the water pump are arranged below the spraying type cooling towers, and the water pump adopts a variable frequency water pump. The control system comprises a controller, and the controller collects a temperature value of an outlet of the water pan, compares the temperature value with a temperature value detected at the previous period and regulates and controls the water supply amount of the water pump according to the comparison result. According to the control system and method for the condenser and the water chilling unit, the water supply amount can be adjusted, in addition, effective heat exchange on the condensation side can be guaranteed, the capacity and the energy efficiency of the unit can be improved, meanwhile, water can be saved, and therefore the operation cost can be saved.

Description

technical field [0001] The invention relates to the field of air conditioning equipment, in particular to a condenser control system, a control method and a chiller. Background technique [0002] The working condition of the condenser of the evaporative cooling chiller has a crucial impact on the entire air-conditioning equipment. When the water in the condenser is insufficient, the condensation effect is not good, and the condensation temperature is high, which ultimately affects the cooling capacity and energy efficiency of the unit. Chinese patent CN206207627U discloses a system for adjusting the outlet water temperature of the condenser. The system has two loops in the cooling tower water cycle. The first loop is connected to the screw water cooling unit through a circulating water pump, and the second loop is connected through a circulating water pump and A cooling water pump is connected to the screw water cooling unit, and the system controls the operation of the firs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B39/04F25B49/02
CPCF25B39/04F25B49/027F25B2700/2116
Inventor 钟海玲陈培生刘洋程琦
Owner GREE ELECTRIC APPLIANCES INC
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