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Preposed external concurrent heating defrosting-preventing device

A front-mounted, heating device technology, applied in the direction of damage protection, condensate prevention, lighting and heating equipment, etc., can solve the problems of long defrosting time, insufficient defrosting, bad indoor environment, etc., achieve short defrosting time, Simple operation and high efficiency

Inactive Publication Date: 2011-10-26
龚光彩
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This defrosting method has the following disadvantages: because the fan of the indoor unit stops, the indoor heat exchanger absorbs little heat from the indoor environment, and the defrosting is relatively insufficient, which makes the defrosting time too long; When defrosting, the indoor heat exchanger needs to absorb heat from the indoor environment, so that the room temperature will drop, making the indoor environment worse
However, compared with the first two electric defrosting methods, the electr

Method used

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  • Preposed external concurrent heating defrosting-preventing device

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] The first embodiment of the present invention is carried out on site according to figure 1 It can be completed, and the structure is simple and practical. It is a schematic diagram of an evaporator electric heating tube auxiliary heat defrosting air heat exchanger device based on the parameter frost growth law.

[0016] see figure 1 , one end of the compressor 1 outlet is connected to the high-temperature heat exchange side 11 through the four-way valve 2 and the muffler 13, and one end comes out of the compressor 1 outlet and passes through the four-way valve 2, and then returns to the compressor inlet through the liquid reservoir 14, and the high temperature One end of the heat exchange side 11 communicates with the outlet of the muffler 13 through the control solenoid valve 12, and the other end communicates with the dry filter 10 t...

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PUM

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Abstract

The invention discloses a preposed external concurrent heating defrosting-preventing device, comprising a throttle or capillary tube (9) and a refrigerant tube (6) which is connected between the throttle or capillary tube (9) and a low temperature heat exchange side (3), wherein a heating device wraps the outer surface of the refrigerant tube (15). The heating device extends and wraps the throttle or capillary tube (9). The heating device comprises a heating element (4) wrapped on the outer surface of the refrigerant tube (6) and an insulating layer (5) wrapped on the outer surface of the heating element (4). The heating device is a hot water, hot oil or hot gas heat exchanger (7). The preposed external concurrent heating defrosting-preventing device disclosed by the invention has the advantages of no halt during systematic defrosting, simplicity in operation, short defrosting time, high efficiency and low energy consumption.

Description

technical field [0001] The invention relates to an anti-defrosting device, in particular to an anti-defrosting device through an external auxiliary heat technology placed in front of an evaporator. Background technique [0002] The middle and lower reaches of the Yangtze River belong to the hot summer and cold winter region in the thermal climate division, with low average temperature and high relative humidity in winter. And under the influence of the strong cold air in the north, there will be frost or freezing weather for a certain period of time in winter. The ambient conditions of high humidity are characteristic of this region and are the main cause of severe frosting and poor performance of heat pumps. When the air source heat pump works in this environment, the evaporator is very easy to frost, and the system performance is seriously attenuated. As time goes by, the frost layer formed will deteriorate the heat exchange process and reduce the evaporation temperature ...

Claims

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Application Information

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IPC IPC(8): F25B47/00F24F13/22
Inventor 龚光彩
Owner 龚光彩
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