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Tetra element medium and high temperature refrigerating work medium suitable for normal temperature water source heat pump

A refrigerant and water source heat pump technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of reduced heat dissipation of radiators, affecting the configuration of heat pump units, and deterioration of cycle performance, so as to meet environmental protection requirements and reduce Influenced by the greenhouse effect and good thermal parameters

Inactive Publication Date: 2005-08-31
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hot water provided by HCFC-22 commonly used in air-conditioning heat pump chillers can only reach a maximum temperature of 50-55°C, and the hot water provided by HFC-134a units is 60-65°C. If it is higher, the condensing pressure will be too high and the cycle performance will deteriorate. Seriously affect the equipment, system and pipeline configuration of the heat pump unit, and the commonly used heating terminal equipment, that is, the heat dissipation of the radiator decreases with the decrease of the temperature of the hot water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: 10% of HFC-134a, 85% of HCFC-124, 2% of HC-600a and 3% of HFC-152a were physically mixed in liquid phase.

Embodiment 2

[0022] Example 2: 90% of HFC-134a, 6% of HCFC-124, 1% of HC-600a and 3% of HFC-152a were physically mixed in liquid phase.

Embodiment 3

[0023] Example 3: 35% of HFC-134a, 30% of HCFC-124, 5% of HC-600a and 30% of HFC-152a were physically mixed in liquid phase.

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Abstract

A medium-and high-temp 4-element refrigerating medium suitable for the heat pump of ordinary-temp water source at 30 deg.C in order to provide the hot water at 70 deg.C contains 1,1,1,2-tetrafluoroethane (HFC-134a), 1-chloro-1,2,2,2-tertafluoroethane (HCFC-124), isobutane (HC-600a) and 1,1-difluoroethane (HFC-152a). Its advantages are no poison, incombustible and good thermodynamic properties.

Description

technical field [0001] The invention belongs to a refrigerant, and relates to a quaternary medium-high temperature refrigeration mixed working medium suitable for a normal temperature water source heat pump. Background technique [0002] 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 th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
Inventor 史琳朱明善韩礼钟朱秋兰董明
Owner TSINGHUA UNIV
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