阅读说明：本技术 用于维修保养制冷系统的机油组合物及制备和使用方法 (Engine oil composition for repairing, maintaining and refrigerating system and preparation and use method thereof ) 是由 周花 曾成 陈赓 于 2019-09-25 设计创作，主要内容包括：用于维修保养制冷系统的机油组合物及制备和使用方法,涉及制冷系统领域,所述机油组合物包括基础油、溶剂和添加剂,所述基础油包括矿物油和合成系基油中的至少一种,所述溶剂包括具有路易斯碱性质的醚,所述添加剂包括抗磨剂和润滑剂。将制备的机油组合物加入到制冷系统的压缩机机油中,可显著改善制冷效果,降低维修保养中的人力、物力和时间等成本。(An engine oil composition for servicing refrigeration systems and methods of making and using relate to the field of refrigeration systems and includes a base oil including at least one of a mineral oil and a synthetic base oil, a solvent including an ether having Lewis base properties, and an additive including an antiwear agent and a lubricant. The prepared engine oil composition is added into compressor engine oil of a refrigeration system, so that the refrigeration effect can be obviously improved, and the cost of manpower, material resources, time and the like in maintenance is reduced.)

1. An engine oil composition for servicing a refrigeration system, characterized by: the engine oil composition includes a base oil including at least one of a mineral oil and a synthetic-based base oil, a solvent including an ether having a Lewis base property, and additives including an antiwear agent and a lubricant.

2. The engine oil composition for servicing a refrigeration system of claim 1, wherein: the volume content of the base oil is 30-50%, the volume content of the solvent is 35-45%, and the volume content of the additive is 5-35%.

3. The engine oil composition for servicing a refrigeration system of claim 2, wherein: the content of the antiwear agent is 3% -30%, and the content of the lubricant is 2% -5%.

4. The engine oil composition for servicing a refrigeration system of claim 1, wherein: the ether with Lewis base property comprises at least one of tetraethylene glycol dimethyl ether, pentaethylene glycol dimethyl ether and hexaethylene glycol dimethyl ether.

5. The engine oil composition for servicing a refrigeration system of claim 1, wherein: the antiwear agent comprises a phosphate ester and the lubricant comprises a stearate ester.

6. The engine oil composition for servicing a refrigeration system of claim 5, wherein: the phosphate comprises at least one of triphenyl phosphate, phenyl (mono-tert-butylphenyl) phosphate, phenyl (di-tert-butylphenyl) phosphate and phenyl (tri-tert-butylphenyl) phosphate.

7. The engine oil composition for servicing a refrigeration system of claim 5, wherein: the stearate comprises at least one of methyl stearate, ethyl stearate, propyl stearate and butyl stearate.

8. A method of preparing an engine oil composition for servicing a refrigeration system according to any one of claims 1 to 7, comprising the steps of:

1) determining the type of base oil according to the type of the machine oil of a compressor in the refrigeration system, wherein the type of the base oil is consistent with that of the machine oil of the compressor;

2) the engine oil composition can be prepared by measuring base oil, a solvent, an antiwear agent and a lubricant and uniformly blending the base oil, the solvent, the antiwear agent and the lubricant.

9. The method of claim 8, wherein: in the step 2), the blending temperature is 60-80 ℃.

10. The use of the engine oil composition for servicing a refrigeration system of any one of claims 1 to 7, wherein: the engine oil composition is added into a compressor of a refrigeration system, and the adding amount of the engine oil composition is 5-45% of the original engine oil of the compressor according to the volume ratio.

Technical Field

The invention relates to the field of refrigeration systems, in particular to an engine oil composition for repairing and maintaining a refrigeration system and a preparation and use method thereof.

Background

Refrigeration technology has been widely used in various departments such as industry, agriculture, national defense, construction, science and technology, and the like, and meets the requirements of people on low temperature in production and life. The main content of refrigeration technology research is divided into three aspects: (1) researching a method for obtaining low temperature, a related mechanism and a refrigeration cycle corresponding to the low temperature, and carrying out thermodynamic analysis and calculation on the refrigeration cycle; (2) studying the properties of the refrigerant to provide a working medium with satisfactory performance for the refrigeration system; (3) various mechanical and technical devices necessary for realizing the refrigeration cycle are researched, including the working principle, performance analysis and structural design of the devices, and the flow organization and system matching design of the devices are realized. After the refrigeration system is used for a certain period of time, situations that the refrigeration effect is not ideal, the refrigeration effect is affected by partial or multiple frosting of the refrigeration system, and even the refrigeration system does not work often occur. When a refrigeration system fails, it is often necessary to troubleshoot components such as fans, compressors, piping, condensers, evaporators, expansion valves, and capillaries. For example, Caoshao Hua in 2017, West leather, volume 39, No. 21, page 101, analysis of frequent failures such as dirty, blocked, and leaking in the maintenance of refrigeration systems, exemplifies the common failures of refrigeration systems, and explains the common maintenance methods in a case-by-case manner. In the text of ' automobile air conditioning system blocking fault analysis and discussion ' on ' 8 th 79-80 th page of ' automobile electrical appliances ' in 2018 by the sweep, a Cadillac SRX vehicle model is taken as an example, case analysis is carried out on the blocking fault of the automobile air conditioning system, and a solution is provided. The method for analyzing and eliminating common faults of the automobile air-conditioning refrigeration system is listed in the methods for analyzing and maintaining common faults of the automobile air-conditioning refrigeration system on pages 33, 63-64 of scientific and technical innovation of 2017 of Sun Sheng. In these cases, it can be seen that the common reason for the refrigeration system not to refrigerate is caused by the filth blockage of the filter or the dryer, and the filter or the dryer which has a fault needs to be removed, cleaned or replaced before being solved, so that the maintenance cost is high.

The patent on refrigerator oil compositions disclosed in the domestic literature relates to refrigerator oil compositions suitable for various refrigeration equipment and a method for producing the same. For example, patent CN107474895A published in 2017 by guangdong american ganoderma refrigeration equipment ltd relates to a refrigerator oil composition for use in a vehicle air conditioner compressor, which comprises a base oil, a phenol-type antioxidant, an amine-type antioxidant and a refrigerant, and exhibits superior antioxidant properties at temperatures around 100 ℃ and above 120 ℃. The compositions of CN101965392A published by japan shinny products corporation in 2011, CN103620003A published by 2014, CN105121611A published by 2015, CN105531357A published by 2016, CN106661477A published by 2017, and CN107614664A published by 2018 are all refrigerating machine oils used in systems such as vehicle air conditioners, electric vehicle air conditioners, gas heating pumps, air conditioners, refrigerators, vending machines, showcases, various hot water supply systems, and refrigerating and heating systems, and are not used for maintenance of refrigeration systems. The refrigerating machine oil and the composition thereof are also novel in terms of energy saving and efficiency improvement and are not engine oil compositions for maintaining and repairing refrigeration systems, wherein the engine oil compositions are CN101177643A published in 2008 and CN101177643B published in 2012 by Beijing Furun petrochemical technology development Limited, CN 3632 published in 2012 by China oil and gas stocks Limited and CN106929127A published in 2017 by Shenzhen Mai Maitao technology Limited, and the engine oil compositions are CN103881659A published in 2014 by Shenzhen Mei technology Limited.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an engine oil composition for maintaining a refrigeration system and preparation and use methods thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

an engine oil composition for servicing a refrigeration system, the engine oil composition comprising a base oil comprising at least one of a mineral oil and a synthetic-based base oil, a solvent comprising an ether having lewis basic properties, and additives comprising an antiwear agent and a lubricant.

The volume content of the base oil is 30-50%, the volume content of the solvent is 35-45%, and the volume content of the additive is 5-35%.

The content of the antiwear agent is 3% -30%, and the content of the lubricant is 2% -5%.

The ether with Lewis base property comprises at least one of tetraethylene glycol dimethyl ether, pentaethylene glycol dimethyl ether and hexaethylene glycol dimethyl ether.

The antiwear agent comprises a phosphate ester and the lubricant comprises a stearate ester.

The phosphate comprises at least one of triphenyl phosphate, phenyl (mono-tert-butylphenyl) phosphate, phenyl (di-tert-butylphenyl) phosphate and phenyl (tri-tert-butylphenyl) phosphate.

The stearate comprises at least one of methyl stearate, ethyl stearate, propyl stearate and butyl stearate.

The preparation method of the engine oil composition for repairing and maintaining the refrigerating system comprises the following steps:

1) determining the type of base oil according to the type of the machine oil of a compressor in the refrigeration system, wherein the type of the base oil is consistent with that of the machine oil of the compressor;

2) the engine oil composition can be prepared by measuring base oil, a solvent, an antiwear agent and a lubricant and uniformly blending the base oil, the solvent, the antiwear agent and the lubricant.

In the step 2), the blending temperature is 60-80 ℃.

The use method of the engine oil composition for repairing and maintaining the refrigerating system comprises the following steps: the engine oil composition is directly added into a compressor of a refrigerating system which cannot work normally (non-mechanical failure and line failure), and the adding amount of the engine oil composition is 5-45% of the original engine oil of the compressor according to the volume ratio.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

1. the engine oil composition can be directly added into a compressor of a refrigeration system which can not work normally or has poor working effect (non-mechanical failure and circuit failure), the addition amount is 5-45% of the volume of the engine oil of the original compressor, and the refrigeration system can work normally after the engine oil composition with the repairing function is added, and the refrigeration effect is obviously improved.

2. The engine oil composition has good compatibility with common refrigerants in the market, including R134a, R22, R32, R410, R401, R404 and the like, and has wide application range and strong universality.

3. The preparation method and the use method are simple, and the cost of manpower, material resources, time and the like in maintenance can be greatly reduced.

4. The invention can make the kinematic viscosity at 40 ℃ of the engine oil composition approximate to that of the original engine oil of the compressor by adjusting the content of each component in the engine oil composition, and the engine oil composition can be used after the viscosity is stable.

5. The solvent adopts the ether with Lewis base property, the ether with Lewis base property has excellent solubility, can selectively absorb acid gas and has certain oxidation resistance, and the antiwear agent is halogen-free phosphate ester, thereby being environment-friendly and pollution-free.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and more obvious, the present invention is further described in detail below with reference to the following embodiments.