CN104559934A - Mixed refrigerant - Google Patents

Abstract

The invention provides a mixed refrigerant, which is prepared from the following components in percentage by weight: 43%-45% of n-pentane, 51%-55% of methyl formate, 0.1%-0.3% of a smoke suppressor, 0.1%-0.5% of an antistatic agent, 1%-3% of a fire retardant, 0.05%-0.1% of a dye and 0.1-0.5% of an antiknock agent. The mixed refrigerant has the beneficial effects that the refrigerants such as F22 can be replaced; and the mixed refrigerant has excellent physical properties and thermodynamic cycle performance.

Description

Mix refrigerant

Technical field

The present invention relates to a kind of refrigeration agent.

Background technology

Refrigeration agent is the key substance of refrigeration system, 1987, and " the Montreal ozone-layer depleting substance management agreement book " jointly signed by 26 countries limits the use of in the past conventional halocarbon.Up to the present, the application of many materials is restricted, as HCF22, although this material has excellent physicals and thermodynamic cycle performance, in refrigeration systems, the application widely of acquisition, but, because it contains chlorine atom, ODP(ozone layer destroying value) numerical value is not that eliminating of 0, HCF22 becomes foregone conclusion.

Therefore, seeking a kind of new refrigeration agent, is an important topic of those skilled in the art.

Chinese Patent Application No. 02124112.0 discloses a kind of New-type environment-protecting mixed refrigerating agent, containing HFC32, HFC134a, HFC143a tri-constituent elements, as required three kinds of constituent elements can be formed new mix refrigerant by different concentration.Concrete mol ratio is: (1) HFC32/HFC134a/HFC143a, 10-40/20-30/40-70 ^mol%, (2) HFC32/HFC134a/HFC143a, 10-30/40-60/10-50 ^mol%, (3) HFC32/HFC134a/HFC143a, 40-60/20-50/10-40 ^mol%.

This invention can keep environment characteristic good (ODP value is 0), and safety is non-combustible, and performance is close with HCFC22, but thermo-efficiency is not high, applies certain difficulty.

Summary of the invention

The object of this invention is to provide a kind of mix refrigerant, to overcome the defect that prior art exists, meet the needs of association area.

Mix refrigerant of the present invention, is made up of the component of following weight percent:

Skellysolve A 43 ~ 45%

Methyl-formiate 51 ~ 55%

Smoke suppressor 0.1 ~ 0.3%

Static inhibitor 0.1 ~ 0.5%;

Fire retardant 1 ~ 3%

Dyestuff 0.05 ~ 0.1%

Octane promoter 0.1 ~ 0.5%

The per-cent sum of component is 100%

Described smoke suppressor is selected from ferrocene;

Described static inhibitor is the amine salt of chromium alkylsalicylate, C12 alkenyl succinic acid manganese or polyprotonic acid, and e.g., Shanghai Chemical Plant's trade mark is the static inhibitor of TM;

Described fire retardant is preferably phosphoric acid 3 methyl esters;

Described dyestuff is as transparent orange;

Described octane promoter is selected from 1-3 butyleneglycol;

Preparation method of the present invention is simple, adopts conventional physical mixing processes.

The invention has the beneficial effects as follows: can the refrigeration agents such as F22 be substituted, and there is excellent physicals and thermodynamic cycle performance.

Embodiment

Embodiment 1

Formula: (weight percent)

Skellysolve A 43.55%

Methyl-formiate 53%

Smoke suppressor 0.2%

Static inhibitor 0.1%

Fire retardant 3%

Dyestuff 0.05%

Octane promoter 0.1%

Described smoke suppressor is ferrocene;

Described static inhibitor is C12 alkenyl succinic acid manganese;

Described fire retardant is phosphoric acid 3 methyl esters;

Described dyestuff is transparent orange;

Described octane promoter is 1-3 butyleneglycol;

Each component is mixed, can product be obtained.

ODP numerical value is 0, and safety is non-combustible.

Adopt negative pressure ejector refrigeration machine to detect, its result is as follows:

Evaporating pressure :-0.075 ~-0.085 vacuum tightness;

Condensing pressure: 0.001Mpa;

Exhaust temperature: 32 DEG C;

COP(Energy Efficiency Ratio): 0.99;

Cold: 1.11.

Embodiment 2

Formula: (weight percent)

Skellysolve A 44.39%

Methyl-formiate 51%

Smoke suppressor 2%

Static inhibitor 0.1%

Fire retardant 2%

Dyestuff 0.01%

Octane promoter 0.5%

Described smoke suppressor is methyl cyclopentadiene;

Described static inhibitor is chromium alkylsalicylate;

Described fire retardant is phosphoric acid 3 methyl esters;

Described dyestuff is transparent orange;

Described octane promoter is 1-3 butyleneglycol;

Each component is mixed, can product be obtained.

ODP numerical value is 0, and safety is non-combustible.

Adopt negative pressure ejector refrigeration machine to detect, its result is as follows:

Evaporating pressure :-0.074 ~-0.084 vacuum tightness;

Condensing pressure: 0.002Mpa;

Exhaust temperature: 35 DEG C;

COP(Energy Efficiency Ratio): 0.99;

Cold: 1.13.

Claims (6)

1. mix refrigerant, is characterized in that, is made up of the component of following weight percent:

Skellysolve A 43 ~ 45%

Methyl-formiate 51 ~ 55%

Smoke suppressor 0.1 ~ 0.3%

Static inhibitor 0.1 ~ 0.5%;

Fire retardant 1 ~ 3%

Dyestuff 0.05 ~ 0.1%

Octane promoter 0.1 ~ 0.5%

The per-cent sum of component is 100%.

2. mix refrigerant according to claim 1, is characterized in that, described smoke suppressor is selected from ferrocene.

3. mix refrigerant according to claim 1, is characterized in that, described static inhibitor is the amine salt of chromium alkylsalicylate, C12 alkenyl succinic acid manganese or polyprotonic acid.

4. mix refrigerant according to claim 1, is characterized in that, described fire retardant is phosphoric acid 3 methyl esters.

5. mix refrigerant according to claim 1, is characterized in that, described dyestuff is transparent orange.

6. the mix refrigerant according to any one of Claims 1 to 5, is characterized in that, described octane promoter is selected from 1-3 butyleneglycol.