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Evaporative cooling unit with frost prevention structure

An evaporative cooling and anti-frost technology, applied to evaporators/condensers, refrigerators, refrigeration components, etc., can solve problems such as snow accumulation on metal filters, clogging of metal filters, and reduction of air intake on the outdoor circulation side

Pending Publication Date: 2020-12-18
AIRSYS REFRIGERATION ENG TECH BEIJING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the outdoor air intake side of the indirect evaporative cooling air-conditioning unit is equipped with a metal air filter. When the outdoor temperature drops in winter, the metal filter is prone to frosting or even freezing. When it snows, the surface of the metal filter is also prone to snow accumulation, causing metal filter clogged
Thereby reducing the air intake on the outdoor circulation side and affecting the operating efficiency of the product
In order to solve this problem, measures such as belt-type electric heating or heaters are usually installed at the air inlet filter to heat the inlet metal filter when the temperature is low in winter. Although the above measures can solve the problems of frosting or icing and snow accumulation, but causes additional power loss
The electric heating is exposed at the air inlet, which poses a safety hazard
In order to meet the extreme low temperature and high humidity environment, the electric heating power is relatively large, which reduces the operating efficiency of the unit

Method used

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  • Evaporative cooling unit with frost prevention structure
  • Evaporative cooling unit with frost prevention structure
  • Evaporative cooling unit with frost prevention structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In the following, the specific structure of the evaporative cooling unit in Embodiment 1 will be described in detail with reference to the drawings.

[0035] figure 1 It is a structural schematic diagram of one side of the air inlet filter screen of the evaporative cooling unit in Embodiment 1; figure 2 for figure 1 Schematic diagram of the structure of the evaporative cooling unit. like figure 1 , figure 2 As shown, the evaporative cooling unit includes: indoor circulation system 1, which can suck indoor air into the evaporative cooling unit and then discharge it into the room; outdoor circulation system 2, can suck outdoor air into the evaporative cooling unit and then discharge it outdoors; The refrigeration system 3 can cool the air in the indoor circulation system 1 and transfer heat to the air in the outdoor circulation system 2; the anti-frost system 4 can prevent the following metal filter screen 24 of the outdoor circulation system 2 from frosting Or fre...

Embodiment 2

[0046] The present application also provides a second embodiment. Below, the specific structure of the evaporative cooling unit in Embodiment 2 will be described in detail with reference to the drawings.

[0047] Figure 4 It is a structural schematic diagram of one side of the metal filter screen of the evaporative cooling unit in Embodiment 2; Figure 5 for Figure 4 Schematic diagram of the structure of the evaporative cooling unit. like Figure 4 Figure 5 As shown, the operation mode of the evaporative cooling unit in Embodiment 2 is the same as that in Embodiment 1, the difference lies in the arrangement of the individual systems and components. details as follows:

[0048] The evaporative cooling unit is in the shape of a cuboid as a whole. The heat exchanger 31 is in the shape of a cube and is inclined at the lower right corner at an angle of 45°. The indoor inlet 311 and the outdoor inlet are inclined upward, and the indoor outlet 312 and the outdoor outlet 314 ...

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Abstract

The invention provides an evaporative cooling unit with a frost prevention structure. The evaporative cooling unit comprises an indoor circulating system, an outdoor circulating system, a metal filterscreen, a refrigerating system and a frost prevention system, wherein the indoor circulating system is provided with an indoor return air inlet and an indoor air supply outlet, and indoor air entersthe indoor circulating system by the indoor return air supply inlet and then is sent back to the indoor by the indoor air supply outlet; the outdoor circulating system is provided with an outdoor airinlet and an outdoor air outlet, and outdoor air enters the outdoor circulating system by the outdoor air inlet and then is exhausted to the outdoor by the outdoor air outlet; the metal filter screenis arranged at the outdoor air inlet so as to filter the outdoor air; the refrigerating system can transfer heat of air in the indoor circulating system to air in the outdoor circulating system, so that the temperature of the air in the outdoor circulating system increases; and the frost prevention system is provided with a frost prevention air duct capable of exhausting the air with increased temperature in the outdoor circulating system to the metal filter screen. The outdoor air with increased temperature is exhausted to the metal filter screen through the frost prevention air duct, so thatthe surface temperature of the metal filter screen is increased, and frosting, icing and snow accumulation on the metal filter screen are prevented.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to an evaporative cooling unit with a frost-proof structure. Background technique [0002] The indirect evaporative cooling air conditioning unit is a highly efficient and energy-saving air conditioning product, which includes indoor air circulation and outdoor air circulation. Because the outdoor air quality varies greatly depending on the installation and application environment, in order to prevent debris from entering the air-air heat exchanger, an air filter is usually installed at the air inlet on the outdoor side. Ordinary air filters are easily damaged after being cleaned 2-3 times and need to be replaced frequently. In order to reduce operating costs, reusable metal air filters are generally used on the outdoor air intake side. [0003] However, the outdoor air intake side of the indirect evaporative cooling air-conditioning unit is equipped with a metal air filter. When t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F13/28F24F13/30F25D21/04F25D21/06F25B41/00F25B39/00
CPCF24F5/0035F24F13/28F24F13/30F25B39/00F25B41/00F25D21/04F25D21/06
Inventor 陈云水方旭明韩凯李波
Owner AIRSYS REFRIGERATION ENG TECH BEIJING
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