CN114111079A - Refrigerant capable of reducing flammability - Google Patents
Refrigerant capable of reducing flammability Download PDFInfo
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- CN114111079A CN114111079A CN202111390475.2A CN202111390475A CN114111079A CN 114111079 A CN114111079 A CN 114111079A CN 202111390475 A CN202111390475 A CN 202111390475A CN 114111079 A CN114111079 A CN 114111079A
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- refrigerant
- mixed refrigerant
- tank
- reduced flammability
- jar body
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 159
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 239000003063 flame retardant Substances 0.000 claims abstract description 25
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 235000011089 carbon dioxide Nutrition 0.000 claims abstract description 11
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 7
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- BZQKBFHEWDPQHD-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-[2-(2,3,4,5,6-pentabromophenyl)ethyl]benzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1CCC1=C(Br)C(Br)=C(Br)C(Br)=C1Br BZQKBFHEWDPQHD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 229910000039 hydrogen halide Inorganic materials 0.000 description 6
- 239000012433 hydrogen halide Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 4
- 229910052794 bromium Inorganic materials 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 150000002366 halogen compounds Chemical class 0.000 description 2
- -1 halogen ions Chemical class 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/006—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention relates to the technical field of refrigerants, in particular to a refrigerant capable of reducing flammability, which comprises the following components in percentage by mass: 30% -35% of R134A refrigerant; 25% -30% of R125 refrigerant; 24% -35% of R600 refrigerant; 17% -25% of R404A refrigerant; brominated flame retardants: 4% -8%, including the jar body 1 and the following steps: s1, mixing: respectively conveying R134A refrigerant, R125 refrigeration, R600 refrigerant and R404A refrigerant to a vacuum mixing tank in sequence to obtain mixed refrigerant; s2, adding: adding a flame retardant into a vacuum mixing tank to obtain a mixed refrigerant with reduced flammability; s3, pressurization: the resulting mixed refrigerant having a reduced flammability characteristic is delivered to a pressurization tank. The invention has the advantages that the flame retardant is added, so that the mixed refrigerant has the characteristic of reducing flammability, the mixed refrigerant in the liner is prevented from being influenced by the external temperature, the dry ice is filled in the inner cavity, the storage temperature of the mixed refrigerant in the liner can be ensured, and the stability of the mixed refrigerant during storage and transportation is improved.
Description
Technical Field
The invention relates to the technical field of refrigerants, in particular to a refrigerant capable of reducing flammability.
Background
Refrigerants are the intermediary substances in various heat engines by which energy conversion is accomplished. These materials generally increase power in a reversible phase change (e.g., gas-liquid phase change). Such as steam in a steam engine, snow in a refrigerator, etc. When a general steam engine works, the heat energy of the steam is released and converted into mechanical energy to generate motive power; the snow of the refrigerator is used for transmitting heat at a low temperature to a high temperature.
Chinese patent No. CN110494530A provides a refrigerant composition having reduced flammability characteristics. The reduced flammability refrigerant comprises a refrigerant and an additive. Also disclosed herein are methods of increasing the minimum ignition energy of a refrigerant and methods of increasing the lower flammability limit of a refrigerant. The disclosure also relates to a method of scavenging free radicals in a refrigerant.
The existing refrigerant is added with a flame retardant, so that the mixed refrigerant does not have the characteristic of reducing flammability, the mixed refrigerant in the liner is easily influenced by the outside temperature, the temperature change of the mixed refrigerant is large, and the stability of the mixed refrigerant during storage and transportation is relatively poor, so that the refrigerant for reducing the flammability is urgently needed to be researched and developed.
Disclosure of Invention
The invention aims to provide a refrigerant with reduced flammable characteristics, and aims to solve the problems that the mixed refrigerant does not have reduced flammable characteristics due to the addition of a flame retardant, the mixed refrigerant in an inner container is easily influenced by the external temperature, and the temperature change of the stored mixed refrigerant is large.
The technical scheme of the invention is as follows: a refrigerant for reducing flammability comprises the following components in percentage by mass:
30% -35% of R134A refrigerant;
25% -30% of R125 refrigerant;
24% -35% of R600 refrigerant;
17% -25% of R404A refrigerant;
brominated flame retardants: 4 to 8 percent.
Further, the method comprises the tank body 1 and the following steps:
s1, mixing: respectively conveying R134A refrigerant, R125 refrigeration, R600 refrigerant and R404A refrigerant to a vacuum mixing tank in sequence to obtain mixed refrigerant;
s2, adding: adding a flame retardant into a vacuum mixing tank to obtain a mixed refrigerant with reduced flammability;
s3, pressurization: transferring the obtained mixed refrigerant with the reduced flammability property into a pressurization tank, and increasing the pressure in the pressurization tank to change the mixed refrigerant with the reduced flammability property into liquid;
s4, evacuating one and adding one: vacuumizing the inner cavity to be in a vacuum state, filling carbon dioxide into the inner cavity, and increasing the pressure in the inner cavity to change the carbon dioxide into a dry ice state;
s5, vacuumizing II and adding II: filling mixed refrigerant gas into the inner container, discharging air in the inner container, and then discharging the air in the inner container to enable the inner container to be in a vacuum state;
s6, filling mixed refrigerant: the pressurizing tank is communicated with the conveying pipe of the tank body through a pipeline, and the mixed refrigerant liquid is filled into the inner container.
Further, the brominated flame retardant is one or a mixture of decabromodiphenylethane, brominated epoxy resin and brominated polystyrene.
Further, in the S3, the pressure in the pressurizing tank is 4.3-5.1Mpa, in the S2, the temperature in the mixing tank is set at 22-28 ℃, and in the S3, the density of the prepared mixed refrigerant is more than 0.52.
Further, the top of the jar body runs through the welding and has the conveyer pipe, valve one is installed to one side of conveyer pipe, valve two is installed on the top of conveyer pipe, the welding of one side of conveyer pipe has the connecting pipe, the inner wall of the jar body is provided with the heat preservation shell, the inside welding of the jar body has the inner bag, be formed with the inner chamber between inner bag and the jar body.
Further, the bottom welding of the jar body has the support frame, the bottom welding of support frame has the bottom plate.
Furthermore, a chassis is welded at the bottom of the tank body, and an exhaust valve is arranged on one side of the chassis.
Further, the top welding of the jar body has the interpolation pipe, the top welding of interpolation pipe has the screwed pipe, one side of adding the pipe is provided with the admission valve.
Further, the top threaded connection of the jar body has the release valve, the top threaded connection of the jar body has the vacuum check valve, the top of vacuum check valve is provided with the vacuum exhaust tube.
Furthermore, a protective pipe is welded at the top of the tank body, and a handle is welded at the top of the tank body.
The invention provides a refrigerant with reduced flammable characteristics by improving the following improvements and advantages compared with the prior art:
(1) through the arranged flame retardant, the flame retardant adopts a bromine flame retardant, halogen compounds are heated to generate decomposition reaction when meeting fire, decomposed halogen ions react with high molecular compounds to generate hydrogen halide, the hydrogen halide reacts with active hydroxyl radicals (HO & cndot.) greatly multiplied in the combustion process of the high molecular compounds to reduce the concentration of the hydrogen halide and slow the combustion speed until the flame is extinguished, and the flame-retardant effect of bromine in the halogen is larger than that of chlorine, so that the mixed refrigerant has the characteristic of reducing the flammability.
(2) Through the heat preservation shell and the inner chamber that set up, the heat preservation shell can not only keep warm to the dry ice of inner chamber, improves the stability of the mixed refrigerant in the inner bag simultaneously, prevents that the mixed refrigerant in the inner bag from receiving ambient temperature's influence, and the temperature that mixed refrigerant deposited in the inner bag can be guaranteed to the intussuseption dry ice in the inner chamber, improves the stability when mixed refrigerant deposits and transports.
(3) Through the dual valve that sets up, valve one and valve two all are used for the control to the connecting pipe, prevent mistake rotary valve one and valve two, improve the security that uses mixed refrigerant to deposit the jar, and the protection tube can play the guard action to conveyer pipe and connecting pipe, further improves the security of depositing jar use.
(4) Through the support frame and the handle that set up, the support frame can play the supporting role to the bottom of the jar body, can play the guard action to the bottom of the jar body simultaneously, and the handle person of facilitating the use carries and carries the jar body, improves the flexibility that the jar body removed.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic perspective view of the entire tank of the present invention;
FIG. 3 is a schematic perspective view of a portion of the can body of the present invention;
fig. 4 is a schematic perspective view of the inside of the can body according to the present invention.
Description of reference numerals:
1 tank body, 2 delivery pipes, 3 valves I, 4 valves II, 5 connecting pipes, 6 chassis, 7 support frames, 8 bottom plates, 9 adding pipes, 10 threaded pipes, 11 air inlet valves, 12 air release valves, 13 vacuum one-way valves, 14 vacuum exhaust pipes, 15 protective pipes, 16 handles, 17 exhaust valves, 18 heat preservation shells, 19 inner containers and 20 inner cavities.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 4, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a refrigerant with reduced flammable characteristics by improving, as shown in figures 1-4, the refrigerant consists of the following components in percentage by mass:
R134A refrigerant 30%;
25% of R125 refrigerant;
24% of R600 refrigerant;
Further, the method comprises the tank body 1 and the following steps:
s1, mixing: respectively conveying R134A refrigerant, R125 refrigeration, R600 refrigerant and R404A refrigerant to a vacuum mixing tank in sequence to obtain mixed refrigerant;
s2, adding: no flame retardant is added;
s3, pressurization: conveying the obtained mixed refrigerant into a pressurizing tank, and increasing the pressure intensity in the pressurizing tank to change the mixed refrigerant into liquid;
s4, evacuating one and adding one: vacuumizing the inner cavity 20 to be in a vacuum state, filling carbon dioxide into the inner cavity 20, and increasing the pressure in the inner cavity 20 to change the carbon dioxide into a dry ice state;
s5, vacuumizing II and adding II: filling mixed refrigerant gas into the inner container 19, discharging the air in the inner container 19, and then discharging the air in the inner container 19 to ensure that the inner container 19 is in a vacuum state;
s6, filling mixed refrigerant: the pressurizing tank is communicated with the conveying pipe 2 of the tank body 1 through a pipeline, and the inner container 19 is filled with the mixed refrigerant liquid.
Furthermore, the bromine flame retardant is brominated polystyrene, halogen compounds are heated to generate decomposition reaction when meeting fire, decomposed halogen ions react with the high molecular compounds to generate hydrogen halide, the hydrogen halide reacts with active hydroxyl radicals (HO & cndot.) proliferated in a large amount in the combustion process of the high molecular compounds to reduce the concentration of the hydrogen halide and slow the combustion speed until the flame is extinguished, and the flame retardant effect of bromine in the halogen is larger than that of chlorine, so that the mixed refrigerant has the characteristic of reducing the flammability.
Further, in S3, the pressure in the pressurizing tank was 4.3, in S2, the temperature in the mixing tank was set at 22, and in S3, the density of the mixed refrigerant was prepared to be 0.52.
Furthermore, a delivery pipe 2 is welded at the top of the tank body 1 in a penetrating way, a first valve 3 is installed at one side of the delivery pipe 2, a second valve 4 is installed at the top end of the delivery pipe 2, the first valve 3 and the second valve 4 are both used for controlling a connecting pipe 5, the first valve 3 and the second valve 4 are prevented from being rotated by mistake, the safety of the mixed refrigerant storage tank is improved, the connecting pipe 5 is welded at one side of the delivery pipe 2, a heat preservation shell 18 is arranged on the inner wall of the tank body 1, the heat preservation shell 18 can not only preserve heat of dry ice in an inner cavity 20, meanwhile, the stability of the mixed refrigerant in the liner 19 is improved, the mixed refrigerant in the liner 19 is prevented from being influenced by the external temperature, the liner 19 is welded in the tank body 1, an inner cavity 20 is formed between the liner 19 and the tank body 1, and dry ice is filled in the inner cavity 20, so that the storage temperature of the mixed refrigerant in the liner 19 can be ensured, and the stability of the mixed refrigerant during storage and transportation is improved.
Furthermore, a support frame 7 is welded at the bottom of the tank body 1, the support frame 7 can support the bottom of the tank body 1 and can protect the bottom of the tank body 1, and a bottom plate 8 is welded at the bottom of the support frame 7; a chassis 6 is welded at the bottom of the tank body 1, and an exhaust valve 17 is arranged on one side of the chassis 6; an adding pipe 9 is welded at the top of the tank body 1, a threaded pipe 10 is welded at the top of the adding pipe 9, and an air inlet valve 11 is arranged at one side of the adding pipe 9; the top of the tank body 1 is in threaded connection with an air escape valve 12, the top of the tank body 1 is in threaded connection with a vacuum one-way valve 13, and the top of the vacuum one-way valve 13 is provided with a vacuum exhaust pipe 14; the welding of the top of jar body 1 has protective tube 15, and protective tube 15 can play the guard action to conveyer pipe 2 and connecting pipe 5, further improves the security of depositing jar use, and the welding of the top of jar body 1 has handle 16, and handle 16 person of facilitating the use carries and transport jar body 1.
Example two
A refrigerant for reducing flammability comprises the following components in percentage by mass:
R134A refrigerant 30%;
25% of R125 refrigerant;
24% of R600 refrigerant;
R404A refrigerant 17%;
brominated flame retardants: 4 percent.
Further, the method comprises the tank body 1 and the following steps:
s1, mixing: respectively conveying R134A refrigerant, R125 refrigeration, R600 refrigerant and R404A refrigerant to a vacuum mixing tank in sequence to obtain mixed refrigerant;
s2, adding: adding a flame retardant into a vacuum mixing tank, wherein the brominated flame retardant is brominated polystyrene, and the temperature in the mixing tank is set at 22 ℃ to obtain a mixed refrigerant with a reduced combustible characteristic;
s3, pressurization: conveying the obtained mixed refrigerant with the reduced flammability property into a pressurization tank, increasing the pressure in the pressurization tank, wherein the pressure in the pressurization tank is 4.3Mpa, so that the mixed refrigerant with the reduced flammability property is changed into liquid, and the density of the prepared mixed refrigerant is 0.52;
s4, evacuating one and adding one: vacuumizing the inner cavity 20 to be in a vacuum state, filling carbon dioxide into the inner cavity 20, and increasing the pressure in the inner cavity 20 to change the carbon dioxide into a dry ice state;
s5, vacuumizing II and adding II: filling mixed refrigerant gas into the inner container 19, discharging air in the inner container 19, and then discharging the air in the inner container 19 to enable the inner container 19 to be in a vacuum state;
s6, filling mixed refrigerant: the pressurizing tank is communicated with the conveying pipe 2 of the tank body 1 through a pipeline, and the inner container 19 is filled with the mixed refrigerant liquid.
EXAMPLE III
The refrigerant for reducing the flammability comprises the following components in percentage by mass:
28% R134A refrigerant;
25% of R125 refrigerant;
24% of R600 refrigerant;
R404A refrigerant 17%;
brominated flame retardants: 6 percent.
Further, the method comprises the tank body 1 and the following steps:
s1, mixing: respectively conveying R134A refrigerant, R125 refrigeration, R600 refrigerant and R404A refrigerant to a vacuum mixing tank in sequence to obtain mixed refrigerant;
s2, adding: adding a flame retardant into a vacuum mixing tank, wherein the brominated flame retardant is brominated polystyrene, and the temperature in the mixing tank is set at 22 ℃ to obtain a mixed refrigerant with a reduced combustible characteristic;
s3, pressurization: conveying the obtained mixed refrigerant with the reduced flammability property into a pressurization tank, increasing the pressure in the pressurization tank, wherein the pressure in the pressurization tank is 4.3Mpa, so that the mixed refrigerant with the reduced flammability property is changed into liquid, and the density of the prepared mixed refrigerant is 0.52;
s4, evacuating one and adding one: vacuumizing the inner cavity 20 to be in a vacuum state, filling carbon dioxide into the inner cavity 20, and increasing the pressure in the inner cavity 20 to change the carbon dioxide into a dry ice state;
s5, vacuumizing II and adding II: filling mixed refrigerant gas into the inner container 19, discharging air in the inner container 19, and then discharging the air in the inner container 19 to enable the inner container 19 to be in a vacuum state;
s6, filling mixed refrigerant: the pressurizing tank is communicated with the conveying pipe 2 of the tank body 1 through a pipeline, and the inner container 19 is filled with the mixed refrigerant liquid.
Example four
The refrigerant for reducing the flammability comprises the following components in percentage by mass:
R134A refrigerant 26%;
25% of R125 refrigerant;
24% of R600 refrigerant;
R404A refrigerant 17%;
brominated flame retardants: 8 percent.
Further, the method comprises the tank body 1 and the following steps:
s1, mixing: respectively conveying R134A refrigerant, R125 refrigeration, R600 refrigerant and R404A refrigerant to a vacuum mixing tank in sequence to obtain mixed refrigerant;
s2, adding: adding a flame retardant into a vacuum mixing tank, wherein the brominated flame retardant is brominated polystyrene, and the temperature in the mixing tank is set at 22 ℃ to obtain a mixed refrigerant with a reduced combustible characteristic;
s3, pressurization: conveying the obtained mixed refrigerant with the reduced flammability property into a pressurization tank, increasing the pressure in the pressurization tank, wherein the pressure in the pressurization tank is 4.3Mpa, so that the mixed refrigerant with the reduced flammability property is changed into liquid, and the density of the prepared mixed refrigerant is 0.52;
s4, evacuating one and adding one: vacuumizing the inner cavity 20 to be in a vacuum state, filling carbon dioxide into the inner cavity 20, and increasing the pressure in the inner cavity 20 to change the carbon dioxide into a dry ice state;
s5, vacuumizing II and adding II: filling mixed refrigerant gas into the inner container 19, discharging air in the inner container 19, and then discharging the air in the inner container 19 to enable the inner container 19 to be in a vacuum state;
s6, filling mixed refrigerant: the pressurizing tank is communicated with the conveying pipe 2 of the tank body 1 through a pipeline, and the inner container 19 is filled with the mixed refrigerant liquid.
The difference between the first example and the second example is that the mixed refrigerant obtained in the first example has no flame retardant effect, and the mixed refrigerant having reduced flammability characteristics is obtained in the second example, the third example and the fourth example by adding a flame retardant, but the mixed refrigerant having reduced flammability characteristics is obtained in the second example, the third example and the fourth example by using different flame retardant ratios, and the mixed refrigerant having reduced flammability characteristics is obtained in the fourth example
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A refrigerant having reduced flammability characteristics, comprising: the composite material comprises the following components in percentage by mass:
30% -35% of R134A refrigerant;
25% -30% of R125 refrigerant;
24% -35% of R600 refrigerant;
17% -25% of R404A refrigerant;
brominated flame retardants: 4 to 8 percent.
2. A refrigerant having reduced flammability as set forth in claim 1, wherein: comprises a tank body (1) and the following steps:
s1, mixing: respectively conveying R134A refrigerant, R125 refrigeration, R600 refrigerant and R404A refrigerant to a vacuum mixing tank in sequence to obtain mixed refrigerant;
s2, adding: adding a flame retardant into a vacuum mixing tank to obtain a mixed refrigerant with reduced flammability;
s3, pressurization: transferring the obtained mixed refrigerant with the reduced flammability property into a pressurization tank, and increasing the pressure in the pressurization tank to change the mixed refrigerant with the reduced flammability property into liquid;
s4, evacuating one and adding one: vacuumizing the inner cavity (20) to be in a vacuum state, filling carbon dioxide into the inner cavity (20), and increasing the pressure in the inner cavity (20) to change the carbon dioxide into a dry ice state;
s5, vacuumizing II and adding II: filling the mixed refrigerant gas into the inner container (19), discharging the air in the inner container (19), and then discharging the air in the inner container (19) to change the inner container (19) into a vacuum state;
s6, filling mixed refrigerant: the pressurizing tank is communicated with the conveying pipe (2) of the tank body (1) through a pipeline, and the inner container (19) is filled with the mixed refrigerant liquid.
3. A refrigerant having reduced flammability as set forth in claim 1, wherein: the brominated flame retardant is one or a mixture of decabromodiphenylethane, brominated epoxy resin and brominated polystyrene.
4. A refrigerant having reduced flammability characteristics as set forth in claim 2, wherein: in the S3, the pressure in the pressurizing tank is 4.3-5.1Mpa, in the S2, the temperature in the mixing tank is set at 22-28 ℃, and in the S3, the density of the prepared mixed refrigerant is more than 0.52.
5. A refrigerant having reduced flammability characteristics as set forth in claim 2, wherein: the top of the jar body (1) runs through the welding and has conveyer pipe (2), valve (3) are installed to one side of conveyer pipe (2), valve two (4) are installed on the top of conveyer pipe (2), one side welding of conveyer pipe (2) has connecting pipe (5), the inner wall of the jar body (1) is provided with heat preservation shell (18), the inside welding of the jar body (1) has inner bag (19), be formed with inner chamber (20) between inner bag (19) and the jar body (1).
6. A refrigerant having reduced flammability characteristics as set forth in claim 2, wherein: the bottom welding of jar body (1) has support frame (7), the bottom welding of support frame (7) has bottom plate (8).
7. A refrigerant having reduced flammability characteristics as set forth in claim 2, wherein: the bottom of the tank body (1) is welded with a chassis (6), and one side of the chassis (6) is provided with an exhaust valve (17).
8. A refrigerant having reduced flammability characteristics as set forth in claim 2, wherein: the top welding of jar body (1) has interpolation pipe (9), the top welding of adding pipe (9) has screwed pipe (10), one side of adding pipe (9) is provided with admission valve (11).
9. A refrigerant having reduced flammability characteristics as set forth in claim 2, wherein: the top threaded connection of the jar body (1) has snuffle valve (12), the top threaded connection of the jar body (1) has vacuum check valve (13), the top of vacuum check valve (13) is provided with vacuum exhaust tube (14).
10. A refrigerant having reduced flammability characteristics as set forth in claim 2, wherein: the top welding of jar body (1) has protective tube (15), the top welding of jar body (1) has handle (16).
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| CN202111390475.2A CN114111079A (en) | 2021-11-23 | 2021-11-23 | Refrigerant capable of reducing flammability |
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| US20070040147A1 (en) * | 2003-10-21 | 2007-02-22 | Dow Global Technologies, Inc. | Refrigerant composition |
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