CN1030202C

CN1030202C - Mixed refrigerant

Info

Publication number: CN1030202C
Application number: CN91101136A
Authority: CN
Inventors: 顾雏军
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-03-02
Filing date: 1991-03-02
Publication date: 1995-11-01
Anticipated expiration: 2006-03-02
Also published as: CN1053442A

Abstract

The present invention relates to a ternary non-azeotropic mixed refrigerant which can be used in air conditioners and refrigerating equipment. When the mixed refrigerant is used in air conditioners, energy can be saved by 20% to 35%. When the mixed refrigerant is used in refrigerating equipment, energy can be saved by 15% to 35%.

Description

Mixed refrigerant

What the present invention relates to is the technical field of refrigeration engineering and Air-conditioning Engineering, particularly be refrigeration agent, this is a kind of ternary mixed refrigerant.

Ternary mixed refrigerant all causes extensive studies interest recently in the whole world, particularly because atmospheric ozone layer is seriously destroyed in fluorine Lyons 12, international community has united and has been limited, up to final cancellation, ternary mixed refrigerant has been thought probably to replace the novel refrigerant of refrigeration agent R12 by a lot of research units, as the ternary mixed refrigerant R22/R124/152a of United States Patent (USP) 4303536 applications, the R22/R115/CH that applies among the Japanese Patent 52-70466 ₃Cl may be the mix refrigerant with practical value.

But each refrigeration agent all has certain limitation, for different vaporization temperature zone and condensing temperature zones, can not there be a kind of mix refrigerant to be suitable for simultaneously, therefore must seek more kinds of cooling agent, in addition, be used in refrigeration and the conditioning unit at these refrigeration agents of formerly being introduced in the patent, energy-saving effect is all not very big, be generally 5%～10%, in addition, these refrigeration agents formerly often require former refrigeration and conditioning unit are done transformation than many places, and this will bring difficulty to practical application and popularization.

The purpose of this invention is to provide a kind of energy-saving effect that larger proportion can be arranged, be applicable to two kinds of working temperature zones of refrigerator and air-conditioning simultaneously, and the mixed non-azeotropic refrigerant that need only carry out less change in actual applications to air-conditioning refrigeration plant, this refrigeration agent can save energy 20%-35% in air-conditioning plant, in refrigeration plant, can save energy 15%-35%, and in the application of air-conditioning plant, need only change swelling part in the air-conditioning plant, promptly strengthen the flow of swelling part, remaining part need not be done substantial change and get final product.

A kind of new refrigeration agent of inventor invention, by the mixture that three kinds of refrigeration agent R502, R22, R152a form, wherein R502 is again a kind of binary azeotrope, and it is made up of 48.8% R22 and 51.2% R115, and wherein the molecular formula of R22 is CHClF ₂, the molecular formula of R115 is CClF ₂CF ₃, in addition, the molecular formula of R152a is CH ₃CHF ₂In this mixture, they are at concentration range (weight concentration) separately: R502 is 0.21 to 0.70, R22 is 0.10 to 0.48, R152a is 0.02 to 0.15, when the concentration of R502 is got higher value, R22 and R152a then get corresponding less value, three's concentration sum is less than or equal to 1, this refrigeration agent is used for the coefficient of performance 20%～35% that air-conditioning can improve system, just energy-conservation 20%～35%, be used for the coefficient of performance 15%-35% that refrigeration system can improve system, just energy-conservation 15%-35%, the coefficient of performance are defined as the refrigerating duty that air-conditioning and refrigeration system specific power consumption are produced, when this mixture was mixed with concentration less than 0.15 impurity, its refrigeration influence was little.

Because R502 is made up of the R115 of 48.8%R22 and 51.2%, so by R502, R22, the mixture that three kinds of refrigeration agents of R152a are formed, it is exactly in fact the tertiary mixture of R22/R115/R152a, in this mix refrigerant, corresponding weight concentration scope is equivalent to: R22 is 0.2 to 0.82, R115 is 0.11 to 0.36, R152a still is 0.02 to 0.15, when the concentration of R22 is got higher value, R115 and R152a then get corresponding less value, three's concentration sum is less than or equal to 1, same this ternary mixed refrigerant is used for the coefficient of performance 15%-35% that air-conditioning and refrigeration system can improve system, and little to its refrigeration influence when this mixture is mixed with concentration less than 0.15 impurity.

Here impurity is defined as, and in this mixture, removes R22, R115, and outside the R152a, any other kind of the material of being sneaked in the mixture.

Claims

1, a kind of mix refrigerant is characterized in that comprising following component and content:

Concentration of component

R502 0.31～0.74

R22(CHClF ₂) 0.15～0.48

R152a(CH ₃CHF ₂) 0.02～0.15

Impurity≤0.15

2, a kind of refrigeration agent according to claim 1 is characterized in that

R502 comprises 44.8% R22(CHClF ₂) and 51.2% R115(CClF ₂CF ₃The real composition and the weight concentration of this mixing medium are as follows:

Concentration of component

R115（CH ₃Cl） 0.11～0.36

R22（CHClF ₂） 0.2～0.82

R152a（CH ₃CHF ₂） 0.02～0.15

Impurity＜0.15