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Medium and high temperature heat pump mixed working fluid containing r13i1 and used for large cycle temperature rise

A technology of mixed working fluid and high temperature heat pump, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of deterioration of cycle performance, inability to provide heat energy, etc., and achieves suitable thermal parameters, excellent environmental characteristics, and excellent cycle performance. Effect

Active Publication Date: 2019-04-23
CHINA ACAD OF BUILDING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the air-conditioning-heat pump system that is widely used uses mainly HCFC22 or its substitutes R407C and R410A. Not only the cycle performance deteriorates, but also accidents will be caused by breaking the upper limit of the pressure and exhaust temperature of the system), and it cannot provide heat energy at a higher temperature level

Method used

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  • Medium and high temperature heat pump mixed working fluid containing r13i1 and used for large cycle temperature rise
  • Medium and high temperature heat pump mixed working fluid containing r13i1 and used for large cycle temperature rise

Examples

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Effect test

example 1

[0040] The medium and high temperature heat pump mixed working fluids suitable for large-cycle temperature rise, the mass percentage of each component is: 5.0% HC290, 60.0% HFC134a and 35.0% R13I1.

[0041] After the components are physically mixed at room temperature, it is used as a medium and high temperature heat pump mixing working fluid suitable for large cycle temperature rise.

example 2

[0043] It is suitable for medium and high temperature heat pump mixed working fluid with large cycle temperature rise. The mass percentage of each component is: 19.0% HFC134a, 76.0% R13I1 and 5.0% HC600a.

[0044] After the components are physically mixed at room temperature, it is used as a medium and high temperature heat pump mixing working fluid suitable for large cycle temperature rise.

example 3

[0046] Suitable for medium and high temperature heat pump mixed working fluids with large cycle temperature rise, the mass percentage of each component is: 19.0% R13I1, 5.0% HC600a and 76.0% HFC245fa.

[0047] After the components are physically mixed at room temperature, it is used as a medium and high temperature heat pump mixing working fluid suitable for large cycle temperature rise.

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Abstract

The invention provides a moderate-and-high-temperature heat pump mixed working medium containing R13I1 and used for large circulation temperature rise.The mixed working medium is suitable for a moderate-and-high-temperature heat pump with the evaporation and condensation temperature difference being 60-80 DEG C and the condensation temperature being 70-120 DEG C in circulation temperature rise.The mixed working medium is prepared by combining three-component matter in HC290, HFC134a, R13I1, HC600a and HFC245fa according to pressure in descending order.The mixed working medium is prepared from, by mass, 1-10% of HC290, 20-60% of HFC134a and 30-79% of R13I1.The total mass percentage of the components of the mixed working medium is 100%.The ozone deplete potential of the working medium is zero, the greenhouse effect potential of the working medium is low, the requirement for environment protection is met, thermal parameters are proper, and circulation performance is good.

Description

Technical field [0001] The invention relates to a mixed working fluid. In particular, it relates to a medium and high temperature heat pump mixed working fluid containing R13I1 and used for large-cycle temperature rise. Background technique [0002] Heat pump technology consumes part of high-grade energy (such as electric energy) at the expense of low-grade heat energy (air, soil, surface water or shallow groundwater contained in the heat energy, as well as geothermal energy, solar energy, industrial The grade of waste heat, etc.) is raised to the level that can be used; the energy efficiency ratio (or coefficient of performance-COP) of the system is generally higher than 3. As long as COP> 1 / η (take conventional thermal power generation as an example, η is the total efficiency of power generation, transmission and distribution), the application of heat pump heating technology can save primary energy, reduce environmental pollution and reduce CO emissions 2 Purpose; as long a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
CPCC09K5/044C09K2205/122C09K2205/24
Inventor 杨强王智超陈清莹杨英霞伍品李强
Owner CHINA ACAD OF BUILDING RES