CN115537258B

CN115537258B - Energy-saving synthetic air compressor oil and preparation method thereof

Info

Publication number: CN115537258B
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: 2023-06-16
Anticipated expiration: 2042-10-09
Also published as: CN115537258A

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 PAO, 10-15 parts of ester oil and 10-20 parts of oil-soluble polyether according to parts by weight; the additive comprises 0.2 to 1.0 part of antiwear agent, 2.0 to 8.0 parts of rust-proof preservative, 2.5 to 7 parts of antioxidant, 200 to 300ppm of demulsifier and H ⁺ 0.03 to 0.05 part of ion scavenger, 0.5 to 1.05 part of antifriction agent and 1 to 5 parts of hydrophobizing agent; the antiwear agent comprises 0.1-0.5 part of CUVAN484 and 0.5 part of KT 550030.1-0.5 part. 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 air compressor oil has the function of forming a protective film between two friction pairs, and avoiding direct contact between metals, thereby buffering friction force, playing a role in lubrication, reducing abrasion and enabling the machine to normally operate. The air compressor oil is mainly used for lubricating the moving parts of the compressor cylinder and the exhaust valve, and has the functions of rust prevention, corrosion prevention, sealing and cooling.

Because the main function of the air compressor is to compress air, the air compressor is in an environment with high pressure, high temperature and condensed water for a long time, the air compressor oil needs to have good lubricity, oxidation resistance, low carbon deposit tendency, proper viscosity and viscosity temperature performance, good oil-water separation performance, oil-gas separation performance, rust prevention and corrosion resistance and bubble resistance in the use process, and the service life of the air compressor oil and the operation cost of the air compressor can be directly determined by the performances.

At present, most air compressors with better domestic use effects are from international brands of ATLAS (ATLAS) and engorgeman (INGERSOLL RAND), but air compressor oil used in the air compressors is matched, and conventional air compressor oil cannot meet the application performance requirements, so that the air compressors are poor in universality, and the air compressors need exclusive maintenance service, so that the cost is extremely high.

In chinese patent CN112210427A, CN107573995B, CN108329978A, various air compressor oils are disclosed, and in order to meet the anti-foaming performance of the air compressor oil, an anti-foaming agent needs to be added into the air compressor oil, but in the practical application process, the presence of the anti-foaming agent affects the air release value, so that the overall service performance of the air compressor oil is affected. In addition, along with the enhancement of people to energy and environmental awareness, the energy-saving (electricity-saving) effect of the air compressor in the use process is also more and more paid attention to, so that the air compressor oil with the advantages of reducing the running cost of the air compressor, along with good energy-saving effect and good applicability in the air compressor is developed, the localization of the air compressor oil is realized, the national large policy environment is met, and the air compressor oil has important value and practical significance.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the energy-saving synthetic air compressor oil and the preparation method thereof, wherein the air compressor oil can realize the anti-foaming performance without adding an anti-foaming agent, the air release value is reduced, 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 has low friction coefficient, and has lower starting and running current in the use process, so that the power consumption and running cost of the air compressor are effectively reduced, and the carbon emission is reduced.

The technical scheme for solving the technical problems is as follows: the energy-saving synthetic air compressor oil comprises 100 parts of PAO, 10-15 parts of ester oil and 10-20 parts of oil-soluble polyether in parts by weight; the additive comprises 0.2-1.0 part of antiwear agent and 2 parts of rust-proof preservative.0 to 8.0 parts of antioxidant, 2.5 to 7 parts of demulsifier, 200 to 300ppm of demulsifier and H ⁺ 0.03 to 0.05 part of ion scavenger, 0.5 to 1.05 part of antifriction agent and 1 to 5 parts of hydrophobizing agent;

the antiwear agent comprises 0.1-0.5 part of CUVAN484 and 0.1-0.5 part of KT 55003.

The combination of KT55003 and Cuvan484 with the above metering parts forms an antiwear additive combination package with excellent performance, and has the beneficial effects that: 1) The compatibility between KT55003 and thiadiazole polysulfide is good, and after the combination use, the antiwear performance of the air compressor oil is more excellent; 2) The hydrolysis-stable ZDDP (zinc dialkyl dithiophosphate) contained in KT55003 is compatible with polyether, 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-proof agent and a copper corrosion-resistant additive;

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

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

The beneficial effects of adopting the further scheme are as follows: the above-mentioned metered portions of T711, T747 and T705C are combined to form black metal rust inhibitor combined PACKAGE (PACKAGE) with excellent performance, so that the oil product can be easily corroded by steel sheet (A method and B method). In addition, the T705C also has the functions of emulsification resistance and demulsification, so that the finally obtained air compressor oil has better emulsification resistance;

t706 is an excellent copper corrosion resistant additive, and in addition, T706 and Cuvan484 (U.S. R.T. VANDERBILT company) work together to make the air compressor oil have better copper corrosion resistance. T706 and Cuvan484 can form excellent copper corrosion resistant additive combination package, make the copper corrosion of oil be 1a grade, after demulsification test, the copper corrosion of oil layer and water layer are 1a grade.

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

The beneficial effects of adopting the further scheme are as follows: t501 is a medium-low temperature antioxidant with excellent performance, and has better antioxidant capacity at about 100 ℃; diisooctyl diphenylamine is a high-temperature antioxidant for lubricating oil with excellent performance. T501 and diisooctyl diphenylamine are combined, so that the problems of low-temperature antioxidation and sludge in the oil product are solved, the problem of fast consumption of phenolic antioxidants at medium and high temperatures is solved, the service life of the oil product is greatly prolonged, and the addition of the diisooctyl diphenylamine can greatly improve the open flash point of oil-soluble polyether in the oil product, so that the flash point of the oil-soluble polyether is improved from 220-230 ℃ to 275 ℃.

Further, the demulsifier is T1001.

The beneficial effects of adopting the further scheme are as follows: the neutral calcium dinonyl naphthalene sulfonate not only can play a role in rust prevention, but also can play a role in anti/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 usability.

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

The beneficial effects of adopting the further scheme are as follows: RC5800 of Rhine chemistry can absorb H generated by oxidation and hydrolysis of oil products ⁺ 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 to equipment.

Further, the friction reducer is 0.5 to 1.0 part of polyisobutene amine and 0.03 to 0.05 part of T406 according to parts by weight.

Further, the hydrophobizing agent comprises 0.5-2.5 parts of polyisobutene and 6500.5-2.5 parts of liquid polyamide according to parts by weight.

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

the ester oil is selected from any one or a combination of a plurality of polyhydric alcohol saturated fatty acid esters (such as SDYZ-4 produced by Nanjing Weier); the oil-soluble polyether is selected from any one or a combination of a plurality of DOW chemical OSP-46, OSP-68 and OSP-100.

The beneficial effects of adopting the further scheme are as follows: the PAO is used as base oil in combination with ester oil and oil-soluble polyether, so that the dissolution capacity and the sensibility of the additive of the PAO can be improved; the solubility of the oil sludge in the oil product is enhanced; the dispersity of the oil sludge in the oil product is enhanced; 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 weight part, 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 the 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 beneficial effects of the invention are as follows:

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

(2) The KT55003 and the oil-soluble polyether are matched for use, so that the anti-friction performance of the air compressor oil can be greatly improved, and the air compressor oil has an excellent energy-saving effect in the use process;

the diisooctyl diphenylamine is matched with the oil-soluble polyether for use, so that the open flash point of the oil-soluble polyether in the oil product can be greatly improved, and the flash point of the oil-soluble polyether is improved to about 275 ℃ from 220-230 ℃, so that the air compressor oil is safer in use and longer in service life.

(3) The components in the air compressor oil are mutually matched, the anti-foaming performance of the oil product is excellent, no defoamer is required to be added, and the three procedures of the foaming performance can reach 0/0, 0/0 and 0/0. And the air release value of the air compressor oil is greatly reduced because no defoamer is needed.

(4) PAO is combined with ester oil and oil-soluble polyether for use, and the corresponding dosage proportion can increase the dissolution capacity and the sensibility of the PAO additive; the solubility of the oil sludge in the oil product is enhanced; the dispersity of the oil sludge in the oil product is enhanced; 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 improves the biodegradability of the oil product.

(5) Thiadiazole polysulfides (Cuvan 484 of r.t. vanderbilt corporation, usa) have excellent resistance to friction, oxidation, copper corrosion and nonferrous metal deactivation;

the combination of the Cuvan484 and the benzotriazole leads the copper corrosion resistance of the air compressor oil to be more excellent, and the copper corrosion of the oil product is 1a; after the demulsification test, the copper corrosion of the oil layer and the water layer is 1a;

the Cuvan484 and the KT55003 are combined for use, so that the wear resistance and antifriction performance of the air compressor oil are more excellent, and particularly, the air compressor oil is used together with RC5800, so that a high hydrolysis resistance antiwear agent combination is formed, the hydrolysis stability is very good, and after a demulsification test, the corrosion of copper sheets of an oil layer and a water layer is 1a;

t501 and diisooctyl diphenylamine are combined, so that the problems of low-temperature antioxidation and sludge in oil products are solved, the problem of high consumption of low-temperature antioxidants is solved, the synergistic effect of the low-temperature antioxidants and Cuvan484 is achieved, the service life of the oil products is greatly prolonged, the air compressor oil is used on an inlet compressor of a certain steel plant, the oil is never changed for decades, and the oil is only supplemented according to actual needs.

(6) In the preparation process of the air compressor oil, the solid additive is firstly added into the ester oil and the oil-soluble polyether for full dissolution, then the liquid additive is added, and finally the PAO is added. The process can thoroughly solve the problem of dissolution of the additive in PAO, avoid turbidity and precipitation in the air compressor oil product, ensure the clear qualification of the air compressor oil product and ensure the sufficient effectiveness of the added additive.

Detailed Description

The following describes the present invention in detail. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, so that the invention is 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 is carried out according to the formula in table 1, and the specific preparation method comprises the following steps:

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

s2, accurately metering the functional additives in the solid state in the table 1, sequentially adding the 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 the blending kettle, and uniformly stirring;

s4, metering PAO (PAO 10 parts and PAO20 parts) 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 is carried out according to the formula in table 2, and the specific preparation method is as follows:

s2, accurately metering the functional additives in the solid state in the table 2, sequentially adding the 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 the blending kettle, and uniformly stirring;

s4, metering PAO (60 parts of PAO08 and 40 parts of PAO) and adding the PAO into the 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 is carried out according to the formula in table 3, and the specific preparation method is as follows:

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

s2, stopping heating; accurately metering the functional additives in the solid state in the table 3, sequentially adding the 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 the blending kettle, and uniformly stirring;

s4, metering PAO (80 parts of PAO08 and 30 parts of PAO) and adding the PAO into the 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 is carried out according to the formula shown in the table 4, and the specific preparation method is as follows:

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

s2, accurately metering the functional additives in the solid state in the table 4, sequentially adding the 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 the blending kettle, and uniformly stirring;

s4, metering PAO (90 parts of PAO and 30 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

Air compressor oil was prepared in the same manner 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 (ensuring that the total amount of base oil was unchanged).

Comparative example 2

Air compressor oil was prepared in the same manner as in example 1 except that: OSP-68 was added in an amount of 0 parts.

Comparative example 3

Air compressor oil was prepared in the same manner as in example 1 except that: the amount of SDYZ-4 added was 0 part. The prepared air compressor oil has turbidity phenomenon and cannot reach the standard of air compressor oil products.

Comparative example 4

Air compressor oil was prepared using the same formulation as in example 1, except that: the specific preparation process is different.

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

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 technical process of the comparative example 4 does not dissolve the solid additive in the oil-soluble polyether and the ester oil, and the finally obtained air compressor oil has turbidity and cannot reach the standard of air compressor oil products.

Comparative example 5

Air compressor oil was prepared in the same manner as in example 1 except that: the amount of CUVAN484 was 0 parts.

Comparative example 6

Air compressor oil was prepared in the same manner as in example 1 except that: the addition amount of KT55003 was 0 part.

Comparative example 7

Air compressor oil was prepared in the same manner as in example 1 except that: the addition amount of KT55003 was 0.8 part.

Comparative example 8

Air compressor oil was prepared in the same manner as in example 1 except that: RC5800 was added in an amount of 0 parts.

Comparative example 9

Air compressor oil was prepared in the same manner as in example 1 except that: T705C was added in an amount of 0 parts.

Comparative example 10

Air compressor oil was prepared in the same manner as in example 1 except that: the amount of Tz516 added was 0 part.

The performance of the air compressor oils obtained in examples 1 to 4 and comparative examples 1 to 10 was examined and compared with the performance of the oil dedicated to the ATLAS Z-type air compressor, wherein the performance of the air compressor oils of examples 1 to 4 and the oil dedicated to the ATLAS Z-type air compressor are shown in table 5, the performance data of comparative examples 1 to 2, 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 oil performance data for air compressor oil and ATLAS Z air compressor of examples 1-4

As can be seen from the data in Table 5, the viscosity-temperature performance of the air compressor oil is obviously better than that of the existing ATLAS Z-type air compressor oil, which indicates that the air compressor oil can be used in a wider temperature range, and the air compressor is more stable in operation in the use process.

The pour point of the air compressor oil is obviously lower than that of the special oil for the ATLAS Z-type air compressor, which indicates 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 of the invention is obviously higher than that of the special oil of an ATLAS Z-type air compressor, which indicates that the product of the invention can be used at a higher temperature and at the same high temperature, and is safer.

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

Noack test results show that the air compressor oil has less oil consumption and longer oil change period in the same service time.

Four-ball test results show that the air compressor oil has better bearing capacity.

In addition, as can be clearly seen from the data of examples 1 to 4, the air compressor oil obtained by adopting the formula and the preparation method provided by the invention has better anti-foaming property, does not need to additionally add an anti-foaming agent, and has an excellent air release value.

More importantly, the air compressor oil has a much lower friction coefficient, so 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 altrets screw air compressor are respectively applied to the altrets screw air compressor, and under the condition that the altrets screw air compressor normally operates, the power, the current and the flow data of the altrets screw air compressor are recorded every 12 hours after tracking and observing 3 half months, and from the statistical data, it can be seen that: the air compressor using the air compressor oil disclosed by the invention has the advantages that the power loss is less, the current is lower, the power loss of the air compressor using the air compressor oil disclosed by the invention is reduced by about 900KW/h per hour on average compared with that of the air compressor using the original imported synthetic screw air compressor oil, if the air compressor oil works for 320 days in one year, the power consumption in 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 oil performance data of air compressors of comparative examples 1-2 and 5-7

Table 7 oil Performance data of air compressors of comparative examples 8 to 10

From the test data of example 1 and comparative example 1, it can be seen that if the amount of polyether is reduced, the friction coefficient of the air compressor oil is increased; from the data of example 1 and comparative example 2, it can be seen that if polyether is not 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 ester oil and oil-soluble polyether are added into the base oil, which is favorable for reducing friction coefficient, improving oil film strength and obtaining air compressor oil with good energy-saving effect. The ester oil and the oil-soluble polyether have the function of a cosolvent, the dissolving capacity and the sensitivity of the PAO additive are improved, the solubility of the oil sludge in the oil product is enhanced, the oil-soluble polyether and the ester oil are matched for use, the consumption of the ester oil can be properly reduced under the condition of meeting the dissolving assisting effect, the excessive consumption of the ester oil is avoided, the hydrolysis risk in long-term use is caused, 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 turbidity of the product is caused.

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

From the test data of example 1 and comparative example 5, it can be seen that if thiadiazole polysulfide (Cuvan 484) is not added, the friction coefficient of the air compressor oil is increased, the oxidation resistance is lowered, and the copper sheet has corrosion problem. The thiadiazole polysulfide Cuvan484 has excellent anti-friction, anti-oxidation capability, copper corrosion resistance and nonferrous metal deactivation capability, and combines with benzotriazole to make the copper corrosion resistance of the air compressor oil more excellent. The thiadiazole polysulfide is combined with KT55003 for use, so that the wear resistance and antifriction performance of the air compressor oil are more excellent, T501, diisooctyl diphenylamine and the thiadiazole polysulfide act synergistically, and the service life of the oil product is greatly prolonged.

As can be seen from the test data of example 1 and comparative example 6, when KT55003 is not added, the friction coefficient of the air compressor oil is increased, so that the energy saving effect is reduced, and because KT55003 is a high-thermal-stability and hydrolysis-stability zinc dialkyldithiophosphate antiwear formulation system, the effective component zinc dialkyldithiophosphate is matched with polyether for use, so that the friction coefficient of the air compressor oil is reduced, and the friction coefficient is increased if KT55003 is not added or the consumption is too small, so that the energy saving effect is not facilitated. From the test data of example 1 and comparative example 7, it can be seen that if the amount of KT55003 exceeds the amount of the present invention, the friction coefficient increases, possibly because KT 5503 contains not only zinc dialkyldithiophosphate as an active ingredient but also other ingredients, and excessive use of KT 5503 causes an influence on lubricating properties, so that high-quality energy-saving air compressor oil can be obtained more easily by using the amount of KT 5503 of the present invention.

As can be seen from the test data of example 1 and comparative example 8, when H was not added ⁺ When the ion scavenger is used, the corrosion phenomenon of copper sheets is easy to occur because of H generated by the hydrolysis of the additive ⁺ Cannot be "eaten" quickly and effectively. As can be seen from the data of the example 1 and the comparative example 9, when T705C is not added, the rust test of the iron rod is not passed, and the demulsification property is reduced, and after the T711, the T747 and the T705C are combined, the black metal rust inhibitor combination package with excellent performance can be formed, so that the oil product can be easily corroded by a steel sheet (A method and B method), and the combination of the three components can ensure that the air compressor oil has better rust resistance, and the black metal corrosion (B method) of the oil product can not be closed.

As can be seen from the experimental data of example 1 and comparative example 10, if Tz516 is not added, the air compressor oil obtainedFlash pointCan not reach the standard, and is used under the high temperature condition, the safety is reduced, and the service life is shortened. The air compressor oil disclosed by the invention can effectively improve the open flash point of oil-soluble polyether in an oil product due to the addition of Tz516, so that an air compressor oil product with a high flash point is obtained. In addition, the addition of Tz516 makes the rotatory oxygen bomb test numerical value of air compressor oil higher, and the life of air compressor oil is longer.

The technical features of the above-described embodiments may be arbitrarily combined, and in order to simplify the description, all possible combinations of the technical features in the above-described embodiments are not exhaustive, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

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

Claims

1. The energy-saving synthetic air compressor oil is characterized in that the air compressor oil comprises 100 parts of PAO, 10-15 parts of ester oil and 10-20 parts of oil-soluble polyether according to parts by weight; the additive comprises 0.2 to 1.0 part of antiwear agent, 2.0 to 8.0 parts of rust-proof preservative, 2.5 to 7 parts of antioxidant, 200 to 300ppm of demulsifier and H ⁺ 0.03 to 0.05 part of ion scavenger, 0.5 to 1.05 part of antifriction agent and 1 to 5 parts of hydrophobizing agent;

the antiwear agent comprises 0.1-0.5 part of CUVAN484 and 0.1-0.5 part of KT 55003;

the antirust preservative is a combination of a ferrous metal antirust agent and a copper corrosion resistant additive; 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 dinonyl naphthalene sulfonic acid calcium according to parts by weight; the copper corrosion resistant additive is 0.01-0.03 part of benzotriazole;

the hydrophobic agent is 0.5-2.5 parts of polyisobutene and 0.5-2.5 parts of liquid polyamide according to parts by weight.

2. The energy-saving synthetic air compressor oil according to claim 1, wherein the antioxidant is 2.0-4.0 parts of T501 and 0.50-3.0 parts of diisooctyl diphenylamine in parts by weight.

3. The energy-saving synthetic air compressor oil of claim 1, wherein the demulsifier is T1001.

4. The energy-saving synthetic air compressor oil according to claim 1, wherein said H ⁺ The ion scavenger is RC5800 of Rhine chemistry.

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

6. The synthetic air compressor oil of any one of claims 1 to 5, wherein the PAO is selected from the group consisting of PAO8, PAO10, PAO20, and PAO 30.

7. The energy-saving synthetic air compressor oil according to any one of claims 1 to 5, wherein the oil-soluble polyether is selected from any one or a combination of several of OSP-46, OSP-68 and OSP-100, and the ester oil is selected from any one or a combination of several of polyol esters.

8. A method for preparing energy-saving synthetic air compressor oil according to any one of claims 1 to 7, characterized in that the method comprises the following steps:

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

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