CN115537258A

CN115537258A - Energy-saving synthetic air compressor oil and preparation method thereof

Info

Publication number: CN115537258A
Application number: CN202211225596.6A
Authority: CN
Inventors: 李洪强; 张立佳; 张绪权
Original assignee: Shandong Qishideng Lubrication Technology Co ltd
Current assignee: Shandong Qishideng Lubrication Technology Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2022-12-30
Anticipated expiration: 2042-10-09
Also published as: CN115537258B

Abstract

The invention relates to the technical field of air compressor oil, in particular to energy-saving synthetic air compressor oil and a preparation method thereof, wherein the air compressor oil comprises 100 parts of base oil and an additive, wherein the base oil comprises 10-15 parts of PAO (polyamide-amine) and 10-20 parts of oil-soluble polyether according to parts by weight; the additive comprises 0.2-1.0 part of antiwear agent, 2.0-8.0 parts of antirust preservative, 2.5-7 parts of antioxidant, 200-300 ppm of demulsifier, H ⁺ 0.03-0.05 part of ion trapping agent and friction reduction0.5 to 1.05 parts of agent and 1 to 5 parts of hydrophobic agent; the antiwear agent comprises CUVAN 484.1-0.5 parts, KT 550030.1-0.5 parts. The air compressor oil has lower starting and running current in the use process, and effectively reduces the electric energy consumption and running cost of the air compressor.

Description

Energy-saving synthetic air compressor oil and preparation method thereof

Technical Field

The invention relates to energy-saving synthetic air compressor oil and a preparation method thereof, and belongs to the technical field of air compressor oil.

Background

The function of the air compressor oil is to form a protective film between the two friction pairs, and direct contact between metal and metal is avoided, so that the friction force is buffered, the lubrication function is achieved, abrasion is reduced, and the machine runs normally. The air compressor oil is mainly used for lubricating moving parts and exhaust valves of a compressor cylinder and has the functions of rust prevention, corrosion prevention, sealing and cooling.

Because the air compressor mainly functions to compress air and is in an environment with high pressure, high temperature and existence of condensed water for a long time, the air compressor oil needs to have good lubricity, oxidation resistance, low carbon deposition tendency, proper viscosity and viscosity-temperature performance, good oil-water separation performance, oil-gas separation performance, rust prevention, corrosion prevention and anti-foaming performance in the use process, and the performances can directly determine the service life of the air compressor oil and the operation cost of the air compressor.

At present, most of air compressors with good domestic use effects are from International brands of Atlas (ATLAS) and England (INGERSOL RAND), but the air compressor oil used in the air compressors is used in a matched manner, the conventional air compressor oil cannot meet the application performance requirements, the universality is poor, and therefore unique maintenance service is needed, and the cost is extremely high.

Chinese patent CN112210427A, CN107573995B, CN108329978a discloses various air compressor oils, and in order to satisfy the anti-foaming performance of the air compressor oils, anti-foaming agents need to be added to the air compressor oils, but in the actual application process, the presence of the anti-foaming agents affects the air release value, thereby affecting the overall performance of the air compressor oils. In addition, along with the enhancement of awareness of people on energy and environmental protection, the energy-saving (electricity-saving) effect of the air compressor in the use process is more and more emphasized, so that the air compressor oil which is good in energy-saving effect and applicability in the air compressor and capable of reducing the operation cost of the air compressor is developed, the localization of the air compressor oil is realized, the air compressor oil conforms to the large national policy environment, and the air compressor oil has important value and practical significance.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the energy-saving synthetic air compressor oil and the preparation method thereof, the air compressor oil can realize the anti-foaming performance and reduce the air release value without adding an anti-foaming agent, and the air compressor oil has good viscosity-temperature performance, lubricating performance and oxidation resistance, can be used at lower temperature and has high use safety at high temperature. Particularly, the air compressor oil is low in friction coefficient, has lower starting and running current in the using process, effectively reduces the power consumption and running cost of the air compressor, and reduces carbon emission.

The technical scheme for solving the technical problems is as follows: the energy-saving synthetic air compressor oil comprises base oil and an additive, wherein the base oil comprises 100 parts by weight of PAO (polyamide-amine) 100 parts by weight, 10-15 parts by weight of ester oil and 10-20 parts by weight of oil-soluble polyether; the additive comprises 0.2-1.0 part of antiwear agent, 2.0-8.0 parts of antirust preservative, 2.5-7 parts of antioxidant, 200-300 ppm of demulsifier, H ⁺ 0.03-0.05 part of ion catching agent, 0.5-1.05 part of antifriction agent and 1-5 parts of hydrophobic agent;

the antiwear agent comprises CUVAN 484.1-0.5 part and KT 55003.1-0.5 part.

The KT55003 and Cuvan484 in measured parts are combined to form an antiwear additive combination package with excellent performance, and the beneficial effects are as follows: 1) The compatibility between KT55003 and thiadiazole polysulfide is good, and after the KT55003 and the thiadiazole polysulfide are combined for use, the abrasion resistance of the air compressor oil is more excellent; 2) The KT55003 contains hydrolysis-stable ZDDP (zinc dialkyl dithiophosphate) and polyether which are used together, so that the friction coefficient of the oil product can be greatly reduced, and the oil product has a good energy-saving effect.

Further, the rust-proof preservative is a combination of a ferrous metal rust inhibitor and a copper corrosion resistant additive;

according to the parts by weight, the ferrous metal antirust agent is 0.5-2.0 parts of N-oleoyl sarcosine octadecylamine (T711), 0.03-0.05 part of dodecenyl succinic acid half ester (T747) and 1.5-5.0 parts of neutral calcium dinonylnaphthalenesulfonate (T705C).

The copper corrosion resistant additive is 0.01-0.03 part of benzotriazole (T706).

The beneficial effect of adopting the further scheme is that: the above measured portions of T711, T747 and T705C are combined to form a ferrous metal antirust combined PACKAGE (PACKAGE) with excellent performance, so that the oil product can be easily corroded by steel sheets (A method and B method). In addition, the T705C also has the functions of demulsification and demulsification, so that the finally obtained air compressor oil has better demulsification performance;

t706 is a copper corrosion resistant additive with excellent performance, and in addition, T706 and Cuvan484 (R.T. VANDERBILT company in the United states) act together, so that the air compressor oil has better copper corrosion resistance. The combination of T706 and Cuvan484 can form a copper corrosion resistance additive combination package with excellent performance, so that the copper corrosion of oil products is 1a grade, and after demulsification test, the copper corrosion of oil layers and water layers is 1a grade.

Furthermore, the antioxidant comprises 2.0 to 4.0 parts by weight of T501 and 0.50 to 3.0 parts by weight of diisooctyl diphenylamine (Tz 516).

The beneficial effect of adopting the further scheme is that: t501 is a medium-low temperature antioxidant with excellent performance, and has better antioxidant capacity at about 100 ℃; the diisooctyl diphenylamine is a high-temperature antioxidant for lubricating oil with excellent performance. The combination of T501 and diisooctyl diphenylamine not only solves the problems of low-temperature oxidation resistance and oil sludge in oil products, but also solves the problem of fast consumption of phenol antioxidants at medium and high temperatures, the service life of the oil products is greatly prolonged, and the addition of the diisooctyl diphenylamine can greatly improve the open flash point of oil-soluble polyether in the oil products, so that the flash point is improved from 220-230 ℃ to 275 ℃.

Further, the demulsifier is T1001.

The beneficial effect of adopting the further scheme is that: the neutral calcium dinonyl naphthalene sulfonate can play a role in rust prevention and demulsification, and the T1001 is matched with the neutral calcium dinonyl naphthalene sulfonate for use, so that the obtained air compressor oil has better oil-water separation performance and use performance.

Further, said H ⁺ The ion scavenger is RC5800 of Rhine chemistry.

The beneficial effect of adopting the further scheme is that: RC5800 of Rhine chemistry can absorb H generated by oil products due to oxidation and hydrolysis ⁺ Greatly prolongs the oil change period and the service life of the oil product, and greatly reduces or avoids H generated by oxidation and hydrolysis of the oil product ⁺ Corrosion of the equipment.

Furthermore, the antifriction agent is 0.5 to 1.0 part of polyisobutene amine and 0.03 to 0.05 part of T406 according to parts by weight.

Furthermore, the hydrophobic agent comprises 0.5 to 2.5 parts by weight of polyisobutylene and 5363 to 2.5 parts by weight of liquid polyamide 6500.5.

Further, the PAO is selected from any one or a combination of more of PAO8, PAO10, PAO20 and PAO 30;

the ester oil is selected from one or more of polyalcohol saturated fatty acid esters (such as SDYZ-4 produced by Nanjing Weil); the oil-soluble polyether is selected from any one or a combination of several OSP-46, OSP-68 and OSP-100 of DOW chemistry.

The beneficial effect of adopting the further scheme is that: the PAO is used in combination with ester oil and oil-soluble polyether as base oil, so that the dissolving capacity and the sensitivity of the additive of the PAO can be improved; the solubility of the oil sludge in oil products is enhanced; enhancing the dispersion degree of the oil sludge in the oil product; the friction coefficient of the oil product is reduced, and the oil film strength of the oil product is enhanced; the oil product has better energy-saving effect; improving the biodegradability of the oil product.

The invention also discloses a preparation method of the energy-saving synthetic air compressor oil, which comprises the following steps:

s1, adding ester oil and oil-soluble polyether into a blending kettle according to the formula, stirring and heating to 70-80 ℃;

s2, accurately metering the solid additives, sequentially adding the solid additives into a blending kettle, and stirring until all the solid additives are completely dissolved;

s3, accurately metering the liquid additives, sequentially adding the liquid additives into a blending kettle, and uniformly stirring;

and S4, metering and adding the PAO into a blending kettle, and uniformly stirring to obtain the energy-saving synthetic air compressor oil.

The invention has the beneficial effects that:

(1) The air compressor oil has a lower friction coefficient, has a lower starting current when used in an air compressor, has less power loss of the air compressor under the condition of ensuring the normal operation of the air compressor, and effectively reduces the operation cost of the air compressor. The actual use experiment is carried out on an ATLAS screw air compressor, and the comparison of the air compressor oil disclosed by the invention and the synthetic screw air compressor oil special for ATLAS shows that the power loss of the air compressor using the air compressor oil is reduced by 5.68% compared with the synthetic screw air compressor oil special for ATLAS.

(2) The KT55003 is matched with oil-soluble polyether for use, so that the friction resistance of the air compressor oil can be greatly improved, and the air compressor oil has a good energy-saving effect in the using process;

the diisooctyl diphenylamine and the oil-soluble polyether are used in a matching way, so that the open flash point of the oil-soluble polyether in an oil product can be greatly improved, and the flash point of the oil-soluble polyether in the oil product is improved from 220-230 ℃ to about 275 ℃, so that the air compressor oil is safer in use and has longer service life.

(3) The air compressor oil has the advantages that various components are matched with one another, the anti-foaming performance of the oil product is excellent, any defoaming agent is not required to be added, and the three procedures of the foaming performance can reach 0/0, 0/0 and 0/0. And because no defoaming agent is required to be added, the air release value of the air compressor oil is greatly reduced.

(4) The PAO is combined with the ester oil and the oil-soluble polyether and the corresponding dosage proportion can increase the additive dissolving capacity and the sensitivity of the PAO; the solubility of the oil sludge in oil products is enhanced; enhancing the dispersion degree of the oil sludge in the oil product; the friction coefficient of the oil product is reduced; the oil film strength of the oil product is enhanced; the oil product has better energy-saving effect and the biodegradability of the oil product is improved.

(5) Thiadiazole polysulfide (Cuvan 484 of VANDERBILT company, USA) has excellent friction resistance, oxidation resistance, copper corrosion resistance and nonferrous metal deactivation capacity;

cuvan484 is combined with benzotriazole to ensure that the copper corrosion resistance of the air compressor oil is more excellent, and the copper corrosion of the oil product is 1a; after demulsification test, copper corrosion of oil layer and water layer is 1a;

cuvan484 is combined with KT55003 for use, so that the wear resistance and friction reduction performance of the air compressor oil are more excellent, and the air compressor oil is particularly used together with RC5800 to form a wear-resistant agent combination with high hydrolysis resistance, the hydrolysis stability is very good, and after a demulsification test, the copper sheet corrosion of an oil layer and a water layer is 1a;

the combination of T501 and diisooctyl diphenylamine not only solves the problems of medium-low temperature oxidation resistance and oil sludge in oil products, but also solves the problem of high consumption of medium-low temperature antioxidant, and the synergistic effect of the T501 and the Cuvan484 greatly prolongs the service life of the oil products.

(6) In the preparation process of the air compressor oil, the solid additive is added into the ester oil and the oil-soluble polyether to be fully dissolved, then the liquid additive is added, and finally the PAO is added. The process can thoroughly solve the problem of dissolving the additive in the PAO, avoid turbidity and precipitation in the air compressor oil product, ensure the clarity and qualification of the air compressor oil product and ensure the sufficient efficiency of the added additive.

Detailed Description

The following is a detailed description of specific embodiments of the invention. This invention can be embodied in many different forms than those herein described and many modifications may be made by those skilled in the art without departing from the spirit of the invention and the scope of the invention is therefore not limited to the specific embodiments disclosed.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1

The preparation of the air compressor oil was carried out according to the formulation in table 1, the specific preparation method being:

s1, adding SDYZ-4 and OSP-68 into a blending kettle according to the parts by weight of a formula, stirring and heating to 70-80 ℃;

s2, accurately metering the solid functional additives in the table 1, sequentially adding the solid functional additives into a blending kettle, and stirring until all the solid additives are completely dissolved;

s3, accurately metering the functional additives in the liquid state in the table 1, sequentially adding the functional additives into a blending kettle, and uniformly stirring;

and S4, metering PAO (10 parts of PAO and 20 parts of PAO) and adding the PAO into a blending kettle, and uniformly stirring to obtain the energy-saving synthetic air compressor oil.

Table 1 formulation composition of example 1

Example 2

The preparation of the air compressor oil was carried out according to the formulation in table 2, the specific preparation method being:

s1, adding SDYZ-4 and OSP-68 into a blending kettle according to the formula, stirring and heating to 70-80 ℃;

s2, accurately metering the solid functional additives in the table 2, sequentially adding the solid functional additives into a blending kettle, and stirring until all the solid additives are completely dissolved;

s3, accurately metering the functional additives in the liquid state in the table 2, sequentially adding the functional additives into a blending kettle, and uniformly stirring;

and S4, metering PAO (60 parts of PAO and 20 parts of PAO) and adding the PAO into a blending kettle, and uniformly stirring to obtain the energy-saving synthetic air compressor oil.

Table 2 formulation composition of example 2

Example 3

The preparation of the air compressor oil was carried out according to the formulation in table 3, the specific preparation method being:

s1, adding SDYZ-4 and OSP-100 into a blending kettle according to the formula, stirring and heating to 70-80 ℃;

s2, stopping heating; accurately metering the solid functional additives in the table 3, sequentially adding the solid functional additives into a blending kettle, and stirring until all the solid additives are completely dissolved;

s3, accurately metering the functional additives in the liquid state in the table 3, sequentially adding the functional additives into a blending kettle, and uniformly stirring;

and S4, metering PAO (PAO 08 parts and PAO30 parts) and adding the PAO into a blending kettle, and uniformly stirring to obtain the energy-saving synthetic air compressor oil.

Table 3 formulation composition of example 3

Example 4

The preparation of the air compressor oil was carried out according to the formulation in table 4, the specific preparation method being:

s1, adding SDYZ-4, OSP-46 and OSP-68 into a blending kettle according to the parts by weight of a formula, stirring and heating to 70-80 ℃;

s2, accurately metering the solid functional additives in the table 4, sequentially adding the solid functional additives into a blending kettle, and stirring until all the solid additives are completely dissolved;

s3, accurately metering the functional additives in the liquid state in the table 4, sequentially adding the functional additives into a blending kettle, and uniformly stirring;

and S4, metering (10 parts of PAO and 10 parts of PAO) and adding the PAO into a blending kettle, and uniformly stirring to obtain the energy-saving synthetic air compressor oil.

Table 4 formulation composition of example 4

Comparative example 1

An air compressor oil was prepared by the same method as in example 1, except that: OSP-68 was added in an amount of 5 parts and SDYZ-4 was added in an amount of 15 parts (to ensure that the total base oil used was constant).

Comparative example 2

An air compressor oil was prepared by the same method as in example 1, except that: OSP-68 was added in an amount of 0 part.

Comparative example 3

An air compressor oil was prepared by the same method as in example 1, except that: SDYZ-4 is added in 0 portion. The prepared air compressor oil has a turbid phenomenon and cannot reach the standard of air compressor oil products.

Comparative example 4

An air compressor oil was prepared using the same formulation as in example 1, except that: the concrete preparation processes are different.

s1, adding SDYZ-4, OSP-68 and PAO into a blending kettle according to the formula, stirring and heating to 70-80 ℃;

and S2, accurately metering the functional additives in the table 1, sequentially adding the functional additives into a blending kettle, and stirring to prepare the air compressor oil.

The air compressor oil prepared by adopting the process of the comparative example 4 is not dissolved in the oil-soluble polyether and ester oil, and the finally obtained air compressor oil is turbid and cannot reach the standard of air compressor oil products.

Comparative example 5

An air compressor oil was prepared by the same method as in example 1, except that: CUVAN484 was added in an amount of 0 part.

Comparative example 6

An air compressor oil was prepared by the same method as in example 1, except that: KT55003 added in an amount of 0 part.

Comparative example 7

An air compressor oil was prepared by the same method as in example 1, except that: KT55003 added in an amount of 0.8 parts.

Comparative example 8

An air compressor oil was prepared by the same method as in example 1, except that: RC5800 is added in 0 portion.

Comparative example 9

An air compressor oil was prepared by the same method as in example 1, except that: the amount of T705C added was 0 part.

Comparative example 10

An air compressor oil was prepared by the same method as in example 1, except that: tz516 is added in an amount of 0 part.

The air compressor oils obtained in examples 1 to 4 and comparative examples 1 to 10 were subjected to performance testing and compared with the performance of the oil for use in the ATLAS Z type air compressor, wherein the performance data of the air compressor oils of examples 1 to 4 and the ATLAS Z type air compressor are shown in Table 5, the performance data of comparative examples 1 to 2 and 5 to 7 are shown in Table 6, and the performance data of comparative examples 8 to 10 are shown in Table 7.

Table 5 air compressor oil and special oil performance data for ATLAS Z air compressor of examples 1-4

The data in table 5 show that the viscosity-temperature performance of the air compressor oil disclosed by the invention is obviously better than that of the existing special oil for the ATLAS Z-type air compressor, which indicates that the air compressor oil disclosed by the invention can be used in a wider temperature range, and the air compressor runs more stably in the using process.

The pour point of the air compressor oil is obviously lower than that of ATLAS Z type air compressor special oil, which shows that the air compressor oil can be used at lower temperature; the product of the invention has lower starting current and running current when used at the same temperature.

The flash point of the product is obviously higher than that of the ATLAS Z type air compressor special oil, which shows that the product can be used at higher temperature and at the same high temperature, and the product is safer.

The copper sheet corrosion test result shows that the air compressor oil disclosed by the invention has higher hydrolytic stability.

The Noack test result shows that the air compressor oil disclosed by the invention is less in using amount and longer in oil change period in the same using time.

The four-ball test result shows that the air compressor oil disclosed by the invention has better bearing capacity.

In addition, as is clear from the data of examples 1 to 4, the air compressor oil obtained by the formulation and the preparation method of the present invention has better anti-foaming property, does not need to add an additional anti-foaming agent, and has an excellent air release value.

More importantly, the air compressor oil disclosed by the invention has a much lower friction coefficient, so that the air compressor oil has a very good energy-saving effect.

In addition, the air compressor oil obtained in example 1 and the original air compressor oil of the existing attlas screw air compressor are respectively applied to the attlas screw air compressor, under the condition that the attlas screw air compressor normally operates, the air compressor oil is tracked and observed for 3 months, the power, the current and the flow data of the attlas screw air compressor are recorded every 12 hours, and the statistical data show that: the air compressor using the air compressor oil has less power loss and lower current, the air compressor using the air compressor oil has the average power loss reduced by about 900KW/h compared with the air compressor using the synthetic screw air compressor oil imported from the original package, if the air compressor works for 320 days in one year, the power consumption of one year can be reduced by 900 multiplied by 24 multiplied by 320=6912000KW, the power saving rate is 5.68%, and the energy consumption is greatly reduced.

TABLE 6 air compressor oil performance data for comparative examples 1-2, 5-7

TABLE 7 air compressor oil performance data for comparative examples 8-10

As can be seen from the test data of example 1 and comparative example 1, if the amount of polyether is decreased, the friction coefficient of the air compressor oil is increased; as can be seen from the data of example 1 and comparative example 2, if no polyether is added, the friction coefficient of the air compressor oil is significantly increased, resulting in a decrease in energy saving effect. Therefore, the proper amount of the ester oil and the oil-soluble polyether are added into the base oil, so that the friction coefficient is reduced, the oil film strength is improved, and the air compressor oil with good energy-saving effect is obtained. And the ester oil and the oil-soluble polyether have the functions of a cosolvent, so that the additive dissolving capacity and sensitivity of the PAO are improved, and the solubility of the oil sludge in an oil product is enhanced, and the oil-soluble polyether and the ester oil are matched for use, so that the dosage of the ester oil can be properly reduced under the condition of meeting the solubilizing effect, the hydrolysis risk in long-term use caused by excessive dosage of the ester oil is avoided, and as can be seen from the result of comparative example 3, if the ester oil is not added, the additive cannot be well dissolved, and the product is turbid.

From the test results of example 1 and comparative example 4, it can be seen that the preparation method according to the invention: the solid additive is completely dissolved in the oil-soluble polyether and ester oil, which is one of the ways for effectively solving the solubility and sensitivity of the PAO to the additive, and is more beneficial to obtaining the qualified air compressor oil.

It can be seen from the test data of example 1 and comparative example 5 that if thiadiazole polysulfide (Cuvan 484) is not added, the friction coefficient of the air compressor oil is increased, the oxidation resistance is reduced, and the copper sheet has corrosion problems. The thiadiazole polysulfide Cuvan484 has excellent friction resistance, oxidation resistance, copper corrosion resistance and non-ferrous metal deactivation capacity, and is combined with benzotriazole to ensure that the copper corrosion resistance of the air compressor oil is more excellent. The thiadiazole polysulfide and KT55003 are combined for use, so that the wear-resistant and antifriction properties of the air compressor oil are more excellent, and the service life of the oil product is greatly prolonged due to the synergistic effect of T501, diisooctyl diphenylamine and the thiadiazole polysulfide.

The test data of example 1 and comparative example 6 show that when no KT55003 is added, the friction coefficient of the air compressor oil is increased, and the energy-saving effect is further reduced, because the KT55003 is a zinc dialkyl dithiophosphate antiwear formula system with high thermal stability and stable hydrolysis, the zinc dialkyl dithiophosphate as an active ingredient is matched with polyether, so that the friction coefficient of the air compressor oil is favorably reduced, and if the KT55003 is not added or the dosage is too small, the friction coefficient is increased, and the energy-saving effect is not favorable. It can be seen from the test data of example 1 and comparative example 7 that if the amount of KT55003 exceeds the amount of the present invention, the friction coefficient also increases, and it is possible that the use of an excessive amount of KT55003 may affect the lubricating performance because it contains not only zinc dialkyldithiophosphate as an effective ingredient but also other ingredients, so that it is easier to obtain a high-quality energy-saving air compressor oil using the amount of KT55003 of the present invention.

As can be seen from the test data of example 1 and comparative example 8, when H is not added ⁺ When the ion scavenger is used, the corrosion phenomenon of copper sheets is easy to occur because H generated by hydrolysis of the additive ⁺ Cannot be "eaten" quickly and efficiently. As can be seen from the data of example 1 and comparative example 9, when T705C is not added, the rust test of the iron rod does not pass and the demulsification performance is reduced, the combination of T711, T747 and T705C provided by the invention can form a ferrous metal rust inhibitor combination bag with excellent performance, so that the oil product can easily pass through the corrosion of the steel sheet (A method and B method), and the combination of the three components ensures that the air compressor oil has better rust resistance, and the ferrous metal corrosion of the oil product (B method) cannot be influenced too much without adding T705C.

As can be seen from the experimental data of example 1 and comparative example 10, if Tz516 is not added, the obtained air compressor oil hasFlash pointCan not reach the standard, is used under the high-temperature condition, has reduced safety and shortened service life. The addition of the Tz516 in the air compressor oil can effectively improve the open flash point of oil-soluble polyether in oil,thereby obtaining the air compressor oil product with high flash point. In addition, the addition of the Tz516 enables the rotating oxygen bomb test value of the air compressor oil to be higher, and the service life of the air compressor oil is longer.

The technical features of the embodiments described above may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the embodiments described above are not exhaustive, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. The energy-saving synthetic air compressor oil is characterized by comprising 100 parts by weight of base oil and 10-15 parts by weight of additive, wherein the base oil comprises 10-20 parts by weight of PAO, 10-15 parts by weight of ester oil and 10-20 parts by weight of oil-soluble polyether; the additive comprises 0.2-1.0 part of antiwear agent, 2.0-8.0 parts of antirust preservative, 2.5-7 parts of antioxidant, 200-300 ppm of demulsifier, H ⁺ 0.03-0.05 part of ion catching agent, 0.5-1.05 part of antifriction agent and 1-5 parts of hydrophobic agent;

the antiwear agent comprises CUVAN 484.1-0.5 part and KT 55003.1-0.5 part.

2. The energy-saving synthetic air compressor oil as claimed in claim 1, wherein the rust and corrosion inhibitor is a combination of a ferrous metal rust inhibitor and a copper corrosion resisting additive;

according to the parts by weight, the ferrous metal antirust agent is 0.5-2.0 parts of N-oleoyl sarcosine octadecylamine salt, 0.03-0.05 part of dodecenyl succinic acid half ester and 1.5-5.0 parts of neutral calcium dinonylnaphthalenesulfonate;

the copper corrosion resistant additive is 0.01-0.03 part of benzotriazole.

3. The energy-saving synthetic air compressor oil as claimed in claim 1, wherein the antioxidant comprises 2.0-4.0 parts by weight of T501 and 0.50-3.0 parts by weight of diisooctyl diphenylamine.

4. The energy-saving synthetic air compressor oil according to claim 1, wherein the demulsifier is T1001.

5. The energy-saving synthetic air compressor oil as claimed in claim 1, wherein the H is ⁺ The ion scavenger is RC5800 of Rhine chemistry.

6. The energy-saving synthetic air compressor oil according to claim 1, wherein the friction reducer is 0.5-1.0 part of polyisobutene amine and 0.03-0.05 part of T406 in parts by weight.

7. The energy-saving synthetic air compressor oil as claimed in claim 1, wherein the water repellent agent comprises 0.5-2.5 parts by weight of polyisobutylene and 0.5-2.5 parts by weight of liquid polyamide 650.

8. The energy-saving synthetic air compressor oil according to any one of claims 1 to 7, wherein the PAO is selected from any one or a combination of PAO8, PAO10, PAO20 and PAO 30.

9. The energy-saving synthetic air compressor oil as claimed in any one of claims 1-7, wherein the oil-soluble polyether is selected from any one or combination of OSP-46, OSP-68 and OSP-100, and the ester oil is selected from any one or combination of polyol esters.

10. A method for preparing the energy-saving synthetic air compressor oil according to any one of claims 1 to 9, characterized by comprising the following steps:

s2, stopping heating, accurately metering the solid additives, sequentially adding the solid additives into a blending kettle, and stirring until all the solid additives are completely dissolved;