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Micro-channel heat exchanger drainage and defrosting system and method

A technology of micro-channel heat exchangers and pipelines, applied in chemical instruments and methods, heating methods, air-conditioning systems, etc., to achieve the effect of improving heat exchange utilization and energy saving efficiency

Inactive Publication Date: 2017-09-22
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems of drainage and defrosting when microchannel heat exchangers are used as evaporators in the refrigeration and air conditioning industry

Method used

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  • Micro-channel heat exchanger drainage and defrosting system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1 As shown, a microchannel heat exchanger drainage and defrosting system, the fan 1 is connected to the salt solution dehumidification device 2 through a pipeline, and the other end of the salt solution dehumidification device 2 is respectively connected to a dilute salt solution storage device 3 and a microchannel through a pipeline The heat exchanger 4, the other end of the saline solution storage device 3 with a thin concentration is connected to the solution pump 7 through a pipeline, the other end of the solution pump 7 is connected to the solution regenerator 6 through a pipeline, and the other end of the solution regenerator 6 is connected to the saline solution through a pipeline The other end of the dehumidifier 2 and the microchannel heat exchanger 4 are connected to the air humidification chamber 5 through a pipeline, the water vapor flows out from the outlet of the solution regenerator 6, the air enters the fan 1, and the treated air i...

Embodiment 2

[0026] Embodiment 2: as figure 1 As shown, a micro-channel heat exchanger drainage and defrosting system is composed of seven components including a fan, a dehumidification device, a salt solution storage device, a micro-channel heat exchanger, an air humidification chamber, a solution regenerator and a solution pump. The fan is an axial fan; the dehumidification device is composed of a salt solution with hygroscopic properties, a solution spray nozzle and a heat exchange tube. The moisture in the humid air is absorbed by the concentrated solution when it fully contacts with the sprayed salt solution. Thinning; the microchannel heat exchanger is composed of regular size microchannel structures; the air humidification chamber is composed of two inlets and one outlet; the solution regenerator is composed of a liquid reservoir, a heater, a gas collection tank and a gas distributor , the salt solution after moisture absorption is transported to the liquid storage tank, heated by t...

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Abstract

The invention belongs to the technical field of air dry and wet separation and discloses a micro-channel heat exchanger drainage and defrosting system and method. A draught fan is connected with a saline solution moisture removal device through a pipeline, the other end of the saline solution moisture removal device is connected with a dilute saline solution storage device and a micro-channel heat exchanger through pipelines correspondingly, and the other end of the dilute saline solution storage device is connected with a solution pump through a pipeline; the other end of the solution pump is connected with a solution regenerator through a pipeline, and the other end of the solution regenerator is connected with the saline solution moisture removal device through a pipeline; the other end of the micro-channel heat exchanger is connected with an air moistening chamber through a pipeline; and vapor flows out of an outlet of the solution regenerator, air enters the draught fan, and the treated air is removed from an outlet of the air moistening chamber. According to the micro-channel heat exchanger drainage and defrosting system and method, the chemical moisture absorption principle and the saline solution regenerable technology are sufficiently utilized, the problems of drainage and defrosting of the micro-channel heat exchanger serving as an evaporator in practical application can be effectively solved, the micro-channel heat exchanging utilizing rate is increased, and the micro-channel energy-saving efficiency is improved.

Description

technical field [0001] The invention relates to a microchannel heat exchanger drainage and defrosting system and method, belonging to the technical field of air dry-wet separation. Background technique [0002] Application No. 01510096331.4 of a microchannel heat exchanger and its microchannel tube. The body of the microchannel tube of the heat exchanger is a round tube, and the outer peripheral side of the microchannel tube has heat exchange fins integrally formed with the body. The round tube With at least one microchannel for refrigerant flow, the application cannot effectively drain the defrost. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a microchannel heat exchanger drainage defrosting system and method. Solve the problems of water drainage and defrosting when the microchannel heat exchanger is used as an evaporator in the refrigeration and air conditioning industry. [0004] A microchann...

Claims

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Application Information

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IPC IPC(8): F24F3/147F24F3/153B01D53/26
CPCF24F3/147B01D53/26F24F3/1417F24F3/153F24F2003/1458
Inventor 王刚张群力徐荣吉刘芳
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE