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Refrigerant capable of reducing flammability

A technology of refrigerants and mixed refrigerants, applied in refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., can solve the problem of large temperature changes of mixed refrigerants, the reduction of flammability of mixed refrigerants, and the vulnerability of mixed refrigerants to external temperatures The impact of the problem, to achieve the effect of reducing flammability, improving flexibility and improving stability

Pending Publication Date: 2022-03-01
衢州荣强化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a refrigerant with reduced flammability to solve the problem that the addition of a flame retardant proposed in the above background technology can make the mixed refrigerant not have reduced flammability, and the mixed refrigerant in the inner tank is easily affected by the external temperature. Affected by the problem of large temperature changes in the storage of mixed refrigerants

Method used

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  • Refrigerant capable of reducing flammability
  • Refrigerant capable of reducing flammability
  • Refrigerant capable of reducing flammability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The present invention provides a refrigerant with reduced flammability characteristics through improvement, such as Figure 1-Figure 4 As shown, it consists of the following mass percentage components:

[0042] R134A refrigerant 30%;

[0043] R125 refrigerant 25%;

[0044] R600 refrigerant 24%;

[0045] R404A refrigerant 17%.

[0046] Further, the tank body 1 and the following steps are included:

[0047] S1. Mixing: transport R134A refrigerant, R125 refrigerant, R600 refrigerant and R404A refrigerant to the vacuum mixing tank in turn to obtain mixed refrigerant;

[0048] S2. Addition: no flame retardant is added;

[0049] S3. Pressurization: transport the obtained mixed refrigerant into a pressurized tank, increase the pressure in the pressurized tank, and make the mixed refrigerant into a liquid;

[0050] S4. Vacuumizing one and adding one: evacuate the inner cavity 20 into a vacuum state, fill the inner cavity 20 with carbon dioxide, increase the pressure in th...

Embodiment 2

[0058] A refrigerant with reduced flammability properties consisting of the following components in mass percent:

[0059] R134A refrigerant 30%;

[0060] R125 refrigerant 25%;

[0061] R600 refrigerant 24%;

[0062] R404A refrigerant 17%;

[0063] Brominated flame retardants: 4%.

[0064] Further, the tank body 1 and the following steps are included:

[0065] S1. Mixing: transport R134A refrigerant, R125 refrigerant, R600 refrigerant and R404A refrigerant to the vacuum mixing tank in turn to obtain mixed refrigerant;

[0066] S2. Addition: adding a flame retardant to the vacuum mixing tank, the brominated flame retardant is brominated polystyrene, and the temperature in the mixing tank is set at 22°C to obtain a mixed refrigerant with reduced flammability;

[0067] S3. Pressurization: The obtained mixed refrigerant with reduced flammability is transported into the pressurized tank, and the pressure in the pressurized tank is increased. The pressure in the pressurized tan...

Embodiment 3

[0072] A refrigerant with reduced flammability properties, a refrigerant with reduced flammability properties, consisting of the following components in mass percent:

[0073] R134A refrigerant 28%;

[0074] R125 refrigerant 25%;

[0075] R600 refrigerant 24%;

[0076] R404A refrigerant 17%;

[0077] Brominated flame retardants: 6%.

[0078] Further, the tank body 1 and the following steps are included:

[0079] S1. Mixing: transport R134A refrigerant, R125 refrigerant, R600 refrigerant and R404A refrigerant to the vacuum mixing tank in turn to obtain mixed refrigerant;

[0080] S2. Addition: adding a flame retardant to the vacuum mixing tank, the brominated flame retardant is brominated polystyrene, and the temperature in the mixing tank is set at 22°C to obtain a mixed refrigerant with reduced flammability;

[0081] S3. Pressurization: The obtained mixed refrigerant with reduced flammability is transported into the pressurized tank, and the pressure in the pressurized t...

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Abstract

The invention relates to the technical field of refrigerants, in particular to a refrigerant capable of reducing the flammable characteristic, which is composed of the following components in percentage by mass: 30-35% of R134A refrigerant, 10-30% of R134A refrigerant, 10-30% of 25%-30% of an R125 refrigerant; 24%-35% of an R600 refrigerant; 17% to 25% of an R404A refrigerant; the method comprises a tank body 1 and comprises the following steps that S1, mixing is conducted, specifically, the R134A refrigerant, the R125 refrigerant, the R600 refrigerant and the R404A refrigerant are conveyed into a vacuum mixing tank in sequence, and a mixed refrigerant is obtained; s2, adding: adding a flame retardant into the vacuum mixing tank to obtain a mixed refrigerant with the characteristic of reducing the flammability; and S3, pressurization is conducted, specifically, the obtained mixed refrigerant with the flammability reducing characteristic is conveyed into a pressurization tank. The mixed refrigerant has the beneficial effects that the flame retardant is added, so that the mixed refrigerant has the flammability reducing characteristic, the mixed refrigerant in the inner container is prevented from being influenced by the external temperature, the inner cavity is filled with the dry ice, the storage temperature of the mixed refrigerant in the inner container can be guaranteed, and the stability of the mixed refrigerant during storage and transportation is improved.

Description

technical field [0001] The invention relates to the technical field of refrigerants, in particular to a refrigerant with reduced flammability. Background technique [0002] Refrigerant is the medium substance used to complete energy conversion in various heat engines. These substances typically undergo reversible phase transitions such as gas-to-liquid phase transitions to increase power. Such as steam in a steam engine, refrigerant in a refrigerator, etc. When a general steam engine is working, it releases the heat energy of the steam and converts it into mechanical energy to generate the motive force; while the refrigerant of the refrigerator is used to transfer the heat from the low temperature to the high temperature. [0003] Chinese Patent No. CN110494530A provides a refrigerant composition with reduced flammability properties. The reduced flammability refrigerant contains a refrigerant and an additive. This paper also discloses a method for increasing the minimum ...

Claims

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Application Information

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IPC IPC(8): F25B9/00
CPCF25B9/006
Inventor 伍志军陈新强傅春丰
Owner 衢州荣强化工有限公司
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