Accumulation phase-change material, and defrosting system of accumulation type air-source heat pump of using the material

An air source heat pump and phase change material technology, applied in heat exchange materials, lighting and heating equipment, damage protection and other directions, can solve the problems of large energy loss, poor operation effect, poor defrosting reliability, etc. The effect of heat transfer temperature difference, increase of condensation temperature and reduction of energy loss

Inactive Publication Date: 2005-10-26
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention can solve the problems of poor defrosting reliability, large energy consumption loss and poor operation effect caused by insufficient heat for defrosting when the hot gas of the existing air source heat pump is defrosting, and the existing energy storage materials cannot meet the defrosting requirements. Frost System Retrofit Issues

Method used

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  • Accumulation phase-change material, and defrosting system of accumulation type air-source heat pump of using the material
  • Accumulation phase-change material, and defrosting system of accumulation type air-source heat pump of using the material
  • Accumulation phase-change material, and defrosting system of accumulation type air-source heat pump of using the material

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specific Embodiment approach 1

[0010] Specific implementation mode one: in conjunction with Fig. 1, figure 2 ,image 3, Figure 4 To illustrate this embodiment, the chemical composition of the energy storage phase change material is composed of CaCl 2 ·6H 2 O, nucleating agent composition, CaCl 2 ·6H 2 The mass percent of O is 95~99%, and the mass percent of nucleating agent is 1~5%; The chemical composition of described nucleating agent is by Ba(OH) 2 , BaSO 4 Composition: The energy-storage air source heat pump defrosting system using the above-mentioned energy-storage phase change material includes a compressor 1, a gas-liquid separator 2, a dry filter 3, a first capillary 4, a one-way valve 5, a second capillary 6, Outdoor heat exchanger 7, four-way reversing valve 8, indoor heat exchanger 9; the output port of compressor 1 is connected to the first input and output port of four-way reversing valve 8, and the input port of compressor 1 is The port is connected to the output port of the gas-liquid s...

specific Embodiment approach 2

[0012] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the CaCl 2 ·6H 2 The mass percent of O is 96%, and the mass percent of the nucleating agent is 4%. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0013] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the CaCl 2 ·6H 2 The mass percent of O is 98%, and the mass percent of the nucleating agent is 2%. Other compositions and connections are the same as in the first embodiment.

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Abstract

The present invention to an energy-storing phase change material and energy-stored air source heat pump defrosting system, belonging to the field of refrigeration equipment technology. The chemical component of said energy-storing phase change material is formed from CaCl2.6H2O and nucleating agent. Said invention also provides the concrete structure of said system. Said system can implement the function conversion from system heat production, waste heat energy storage, energy-releasing defrosting and heat production.

Description

Technical field: [0001] The invention relates to the technical field of refrigeration equipment (F25), in particular to an energy storage phase change material and an energy storage air source heat pump defrosting system using the material. Background technique: [0002] At present, there are two recognized air source heat pump hot gas defrosting systems: one is that the high-temperature hot gas from the compressor directly enters the evaporator through the bypass pipeline for defrosting; The operating condition changes to the cooling operating condition. However, in the process of hot gas defrosting, the energy for defrosting basically comes from the power consumption of the compressor, and the heat for defrosting is insufficient, which causes drastic changes in the suction and exhaust pressure during the defrosting process, which affects the compressor The impact is large; the return flow of refrigerant in the system is large, which increases the possibility of liquid sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/02
Inventor 姚杨姜益强马最良韩志涛
Owner HARBIN INST OF TECH
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