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Vehicle-carrying air-conditioning refrigerating system plugging agent

A refrigeration system and vehicle-mounted air-conditioning technology, which is applied to reagents, other chemical processes, educts, etc., can solve the problems of high cost of air-conditioning components, long working hours, and troublesome operation by car owners, and achieve excellent weather resistance and heat resistance. , the effect of environmental protection

Inactive Publication Date: 2008-09-10
DALIAN SANDAAOKE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Adding refrigerant is only an expedient measure, because the leakage problem is not fundamentally solved, the newly added refrigerant will still seep out, continuously adding refrigerant will not only bring operational troubles to the car owner, but also cause waste of refrigerant Phenomenon, bring certain economic loss to the owner;
[0005] 2. Replacement parts
[0006] To replace parts, the location of the leakage needs to be found first, and then the leaking parts can be replaced. There are problems of long working hours and high cost, which affects the normal operation of the vehicle and brings great economic losses to the owner.
[0007] ① Long working hours: Many leak points are difficult to detect with the naked eye, making it difficult to determine the leak location, and it takes a long time to check for leaks; it is troublesome to replace parts, especially when replacing metal parts such as evaporators. one working day;
[0008] ②High cost: The cost of air-conditioning components for mid-to-high-end cars is high, and the cost of working hours is also high.
However, the plugging agent used not only contains toxic and harmful substances such as dichloromethane, but also is only effective for rubber sealing gaskets, and is ineffective for leakage caused by trachoma on the pipeline.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 0.1 to 70% of the total weight of alkyl silicone oil, 0.5 to 70% of the total weight of alkoxy silicone oil, 0.1 to 50% of the total weight of hydroxy silicone oil, 0.1 to 10% of the total weight of organic amine curing agent, total weight of 0.1 to 10% organotin is used as the raw material, and the raw material is added to a dry stirred tank and stirred evenly.

[0032] The alkyl silicone oil is hexadecyltrimethoxysilane, methylethoxysilane or dimethylsiloxane.

[0033] The alkoxy silicone oil is ethyl orthosilicate, tetramethoxysilane or triethoxysilane.

[0034] The hydroxy silicone oil is liquid hydroxy-terminated polydimethylsiloxane with a viscosity of 1 to 3500 Pa·s.

[0035] The organic amine curing agent is diaminotoluene, bis-N,N'-(methyl-butylmethylene)-diethylenetriamine or N-aminoethylpiperazine.

[0036] The organotin is di-n-butyl tin dilaurate or stannous octoate.

[0037] Each raw material can be selected within the weight range so that the weight sum ...

Embodiment 2

[0040] Take 0.1 to 70% of the total weight of alkyl silicone oil, 0.5 to 70% of the total weight of alkoxy silicone oil, 0.1 to 50% of the total weight of hydroxy silicone oil, 0.1 to 50% of the total weight of vinyl silane, total weight of 0.1 to 10 % Organic amine curing agent, 0.1-10% of the total weight of organic tin as raw materials, add the raw materials into a dry stirred tank and stir evenly.

[0041] The specific varieties of alkyl silicone oil, alkoxy silicone oil, hydroxy silicone oil, organic amine curing agent and organotin are in accordance with Example 1. The vinyl silane is vinyl trimethoxy silane, vinyl triethoxy silane, and methyl vinyl. Dimethoxysilane, methylvinyldiethoxysilane, or vinyltris(β-methoxyethoxy)silane.

[0042] Each raw material can be selected within the weight range so that the weight sum is 100%.

[0043] The hydrocarbon refrigerant is used as the propellant to be packaged in an ordinary aerosol can. The pressure in the can is 0.01~0.5MPa. The ...

Embodiment 3

[0045] Take 0.1 to 70% of the total weight of alkyl silicone oil, 0.5 to 70% of the total weight of alkoxy silicone oil, 0.1 to 50% of the total weight of hydroxy silicone oil, 0.1 to 50% of the total weight of vinyl silane, total weight of 0.1 to 15 % Amino silane, 0.1-10% of the total weight of organic amine curing agent, 0.1-10% of the total weight of organic tin as raw materials, except amino silane can be γ-aminopropyltriethoxysilane, γ-aminopropyl Trimethoxysilane, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane or 3-aminopropyl Methyldimethoxysilane, other raw materials are the same as in Example 1 or Example 2.

[0046] Each raw material can be selected within the weight range, and the sum of each weight is 100%.

[0047] The hydrocarbon refrigerant is used as the propellant to be packaged in an ordinary aerosol can. The pressure in the can is 0.01~0.5MPa. The net content of the plugging agent in each can is preferably the amo...

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Abstract

The invention discloses a vehicle air conditioning refrigeration system leak-stopping agent which has low cost and no toxicity, is environment-friendly, can prevent refrigerant from leaking from connecting parts and pipeline sand holes, avoid the waste of the refrigerant, reduce the maintenance times of the on-board air conditioning, and decrease the maintenance cost of the vehicle. Alkyl silicone oil with 0.1 to 70 percent of the total weight, alkoxyl silicone oil with 0.5 to 70 percent of the total weight, hydroxyl-terminated silicone oil with 0.1 to 50 percent of the total weight, organic amine curing agent with 0.1 to 10 percent of the total weight, and organic tin with 0.1 to 10 percent of the total weight are taken as raw materials, and the leak-stopping agent can be produced by adding the raw materials into a dry stirring tank and evenly stirring the raw materials.

Description

Technical field: [0001] The invention relates to a plugging agent added to an air-conditioning refrigerant to prevent refrigerant leakage, in particular to a low-cost, non-toxic and environmentally friendly, preventing refrigerant leakage from connecting parts and pipeline trachoma, and avoiding refrigerant waste , Reduce the maintenance frequency of vehicle air conditioner, reduce vehicle maintenance cost, vehicle air conditioner refrigeration system leaking agent. Background technique: [0002] Vehicle air-conditioning systems often cause refrigerant leakage due to loose connections or blisters in the pipeline, which affects the normal operation of the refrigeration system. For this reason, the following three methods are commonly used to solve this problem, but there are different degrees of problems. [0003] 1. Add refrigerant [0004] Adding refrigerant is just a stopgap measure. Because the leakage problem is not solved fundamentally, the newly added refrigerant will still...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/12C08L83/06C08K5/57C08K5/17
CPCY02P20/141
Inventor 吕栓锁
Owner DALIAN SANDAAOKE CHEM
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