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An evaporative chiller and control method

A chiller and control method technology, which is applied in heating methods, mechanical equipment, lighting and heating equipment, etc., can solve the problems of slowing down scaling and low energy efficiency, and achieve the effects of improving cooling and heat release efficiency, increasing cooling capacity, and improving energy efficiency.

Active Publication Date: 2018-11-23
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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  • An evaporative chiller 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 chilling unit and a control method. The evaporative water chilling unit comprises a compressor (1), an evaporative condenser (2), an air-cooling type precooling heat exchanger (8) located between the compressor (1) and the evaporative condenser (2), and a water-cooling type precooling heat exchanger (9) arranged between the compressor (1) and the evaporative condenser (2) and connected with the air-cooling type precooling heat exchanger (8) in parallel. Compared with an air-cooling single-precooling mode in the prior art, the water precooling mode isadded, as the power consumption of the water precooling mode is smaller than that of the air precooling mode, power consumption of the unit is reduced while the unit is subjected to scale inhibition,and the energy efficiency of the unit is improved; and meanwhile, as the air precooling and water precooling are conducted at the same time to cool refrigerants, the cooling and heat releasing efficiency of the refrigerants is effectively improved, and the heat exchange capacity of the unit is improved.

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 Patents(China)
IPC IPC(8): F24F5/00F24F11/64F24F13/30
Inventor 刘洋
Owner GREE ELECTRIC APPLIANCES INC
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