Heat accumulator, air conditioner outdoor unit and air conditioner

A technology for heat accumulators and heat exchangers, which is applied in air conditioning systems, heat storage equipment, indirect heat exchangers, etc. It can solve the problems of heat storage in heat accumulators, low heat release efficiency, long defrosting time of units, and insufficient liquid supply, etc. problems, to achieve the effect of spacious circulation space, increased contact area, and improved heat exchange efficiency

Pending Publication Date: 2022-07-08
GREE ELECTRIC APPLIANCES WUHAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems existing in the related technology, the application provides a heat accumulator, the heat exchanger assembly of the heat accumulator can evenly distribute the refrigerant, and can avoid "too much liquid supply" and "insufficient liquid supply", which will lead to The heat storage and heat release efficiency of the heat accumulator is low, and the defrosting time of the unit is long, etc.

Method used

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  • Heat accumulator, air conditioner outdoor unit and air conditioner
  • Heat accumulator, air conditioner outdoor unit and air conditioner
  • Heat accumulator, air conditioner outdoor unit and air conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0050] At present, when the heat pump air conditioner operates for heating in winter, the air-side heat exchanger acts as an evaporator. Due to the low ambient temperature, the temperature of the surface of the heat exchanger also drops, even below 0°C. When the outdoor air flows through When the heat exchanger coils, the moisture contained in it will separate out and form a frost layer. The defrosting process of the heat exchanger needs to take heat from the indoor side, which makes the indoor temperature fluctuate greatly, and the indoor comfort becomes poor. In order to solve the problem of rapid defrosting and large indoor temperature fluctuation during defrosting, a phase change heat storage module can be used for defrosting.

[0051] At present, most of the heat exchangers in the heat storage device are composed of micro-channel flat tubes and fins arranged on the micro-channel flat tubes. However, this structural design has very uneven distribution of refrigerants, and ...

Embodiment 2

[0074] In the heat accumulator described in the above embodiment, the heat exchanger components of the heat accumulator can evenly distribute the refrigerant, and can avoid "too much liquid supply" and "insufficient liquid supply", and then the heat storage, Problems such as low heat release efficiency and long defrosting time of the unit. The heat pump air conditioners currently developed in the industry, in order to improve the heat storage capacity of the heat accumulators, need to increase the number of heat accumulators or increase the volume of the heat accumulators to meet the heat storage requirements, resulting in a waste of manufacturing costs and installation space. Although the existing industry technicians tend to miniaturize the overall size of the heat storage module in order to reduce the installation space Unreasonable, the heat exchange efficiency between the heat exchanger components and the phase change heat storage material is low, resulting in insufficien...

Embodiment 3

[0095] The above embodiment 2 implements a miniaturized invention design for the heat accumulator. In practical applications, for the practicability of the heat accumulator, the embodiment of the present application also implements a further invention design for the heat accumulator.

[0096] Figure 5 is a schematic structural diagram of the first tube sheet shown in the embodiment of the present application;

[0097] Figure 7 It is a schematic structural diagram of the second tube sheet shown in the embodiment of the present application.

[0098] see Figure 5 and Figure 7 .

[0099] The heat accumulator of the embodiment of the present application includes the structure of the first embodiment above, and the specific structural dimensions are set according to the second embodiment above and the actual application. The U tubes 332 are distributed parallel to the bottom surface of the shell 1; or the N heat exchange U tubes 332 are distributed parallel to the bottom su...

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Abstract

The invention relates to a heat accumulator, an air conditioner outdoor unit and an air conditioner. The heat accumulator comprises a shell, a flow divider and at least one heat exchanger assembly, each heat exchanger assembly comprises a gas collecting header pipe, a liquid collecting header pipe and a finned tube type heat exchanger, and the gaps between the shell and the heat exchanger assemblies and the gaps of the heat exchanger assemblies are filled with phase change heat storage materials; the finned tube type heat exchanger comprises heat exchange fins and N heat exchange U tubes; the heat exchange fins are evenly distributed around the U-shaped heat exchange pipe. According to the scheme provided by the invention, the refrigerant can be uniformly distributed, and the conditions of low heat storage and heat release efficiency, long unit defrosting time and the like of the heat accumulator due to excessive liquid supply and insufficient liquid supply are avoided, so that the heat exchange efficiency of the heat accumulator is improved.

Description

technical field [0001] The present application relates to the technical field of air conditioners, and in particular, to heat accumulators, external units of air conditioners and air conditioners. Background technique [0002] At present, when the heat pump air conditioner operates for heating in winter, the air-side heat exchanger acts as an evaporator. Due to the low ambient temperature, the temperature of the surface of the heat exchanger also drops, even below 0°C. When the outdoor air flows through When the heat exchanger coils, the moisture contained in it will separate out and form a frost layer. The defrosting process of the heat exchanger needs to take heat from the indoor side, which makes the indoor temperature fluctuate greatly and the indoor comfort deteriorates. In order to solve the problem of rapid defrosting and the large fluctuation of indoor temperature during the defrosting process, the phase change heat storage module can be used for defrosting. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/02F28F1/32F24F1/16F25B47/00
CPCF28D20/021F28F1/32F24F1/16F25B47/00Y02E60/14
Inventor 陈昌中谭德强徐安泽王成根英宁柳维
Owner GREE ELECTRIC APPLIANCES WUHAN
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