Refrigerating medium for heat pump of high-temp water source

A technology of refrigeration working fluid and water source heat pump, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of high condensing pressure, affecting the configuration of heat pump units, reducing heat dissipation of radiators, etc., and achieves good thermal performance. The thermal performance and thermal parameters are good, and the effect of reducing the impact of the greenhouse effect

Inactive Publication Date: 2004-07-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used refrigerant HCFC-22 in air-conditioning heat pump chillers can only provide hot water up to 50-55°C. If it is higher, the condensing pressure will be too high (up to dozens of atmospheres), and the cycle performance will deteriorate, which will seriously affect the performance of the heat pump unit. The configuration of equipment, systems and pipelines, and commonly used heating equipment, that is, the heat dissipation of radiators decreases with the decrease of hot water temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: 75% HCFC-124 and 25% HCFC-142b were physically mixed in a liquid state.

Embodiment 2

[0028] Example 2: 85% HCFC-124 and 15% HCFC-142b were physically mixed in a liquid state.

Embodiment 3

[0029] Example 3: 95% HCFC-124 and 5% HCFC-142b were physically mixed in a liquid state.

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PUM

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Abstract

Arefrigerant for heat pump of high-temp water source is prepared from monochloroe-1,2,2,2-tetrafluoroethane (HCFC-124), 1-monochloro-1,1-diffluoroethane (HCFC-1426) and optional isobutyane (HC-600a) through proportional pysical mixing. Its advantages include no damage to ozonosphere, no poison, imbustible nature, and high thermodynamic performance. It can directly use freon-22 refrigerating system and need not to change the compressor and main parts in the system.

Description

[0001] Field [0002] The invention belongs to a refrigerant, in particular to a refrigerant used in a high-temperature water source heat pump. Background technique [0003] Water source heat pump technology uses geothermal water, groundwater, surface water (river water, lake water, sea water), industrial waste water and other low-temperature and low-level thermal energy resources, and adopts the principle of heat pump to transfer low-level heat energy to high-level heat energy through a small amount of electric energy input, so as to realize power supply. An energy-saving and environmentally friendly technology for heating and cooling. The water source heat pump has the characteristics of high efficiency and energy saving, stable and reliable operation, remarkable environmental benefits, and one machine with multiple functions. Because water source heat pumps have high efficiency, are almost not affected by the ambient temperature in various seasons, and can effectively use ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
Inventor 史琳朱明善韩礼钟王鑫刘南希
Owner TSINGHUA UNIV
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