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Evaporative water chilling unit and control method

A chiller unit and control method technology, applied in heating and ventilation control systems, heating methods, lighting and heating equipment, etc., can solve the problems of slowing down scaling and low energy efficiency, so as to improve cooling and heat release efficiency, increase cooling capacity, and improve energy efficiency Effect

Active Publication Date: 2018-01-12
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low energy efficiency of the evaporative water chiller in the prior art when slowing down scaling, thereby providing an evaporative water chiller and a control method

Method used

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  • Evaporative water chilling unit and control method

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Embodiment Construction

[0032] Such as figure 1 As shown, the present invention provides an evaporative water chiller, which includes:

[0033] Compressor 1 and evaporative condenser 2;

[0034] An air-cooled pre-cooling heat exchanger 8 is arranged between the compressor 1 and the evaporative condenser 2;

[0035] The water-cooled pre-cooling heat exchanger 9 is arranged between the compressor 1 and the evaporative condenser 2 and connected in parallel with the air-cooled pre-cooling heat exchanger 8 .

[0036] The invention solves the following technical problems: the applicability of the evaporative cooling unit is poor in high temperature and high humidity environment, the energy efficiency of high temperature and low humidity is poor, and the surface scaling of the heat exchanger is relatively serious, which causes the user to feel bad.

[0037] Through the water-cooled pre-cooling heat exchanger installed between the compressor and the evaporative condenser and in parallel with the air-cooled...

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Abstract

The invention provides an evaporative water chiller and a control method, the evaporative water chiller includes: a compressor (1) and an evaporative condenser (2); an air-cooled pre-cooling heat exchanger (8), arranged in the between the compressor (1) and the evaporative condenser (2); a water-cooled precooling heat exchanger (9), arranged between the compressor (1) and the evaporative condenser (2) and connected in parallel with the air-cooled pre-cooling heat exchanger (8). Compared with the air-cooled single pre-cooling method in the prior art, the present invention can increase the water pre-cooling method. Since the power consumption of the water pre-cooling method is smaller than that of the wind pre-cooling method, it is effective in preventing scale of the unit. At the same time, it also reduces the power consumption of the unit and improves the energy efficiency of the unit; at the same time, because the air pre-cooling and water pre-cooling work at the same time to cool the refrigerant, it also effectively improves the cooling and heat release efficiency of the refrigerant and improves the heat transfer of the unit. ability.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and in particular relates to an evaporative chiller and a control method. Background technique [0002] With the rapid development of my country's rail transit industry, the air-conditioning equipment supporting subway stations is gradually expanding its scale. Evaporative chillers meet the market demand for high energy efficiency, all-weather, variable working conditions, no cooling tower, and small footprint. [0003] However, evaporative chillers face a variety of industry problems, which hinder their development and promotion. Including severe fouling on the surface of the heat exchanger, large temperature difference between dry and wet bulbs between day and night, and poor versatility in the unit area, etc.; resulting in unstable operation, poor reliability, reduced heat exchange capacity, high maintenance costs, and short design life. [0004] Many engineers and technicians add surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F11/00F24F13/30
Inventor 刘洋
Owner GREE ELECTRIC APPLIANCES INC
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