UA80238C2 - Turbine oil for thermally loaded gas turbine units - Google Patents

Abstract

A turbine oil for thermally loaded gas and vapor water turbines and water compressors as well as for use as hydraulic fluid in control systems for this equipment, in other industrial equipment and vehicles, which contains basic oil and composition of functional additives. At that it contains synthetic oil, obtained on basis of poly-?-olephines or mixture of poly-?-olephines and oil, obtained by hydrocracking-hydroisomerization, or mixture of poly-?-olephines, hydrocracking-hydroisomerization oil and mineral oil as basic oil, and 4-nonylphenoxyacetic acid, N,N-bis-(2-ethylhexyl-1,2,4-triazolylmethylamine), mixture of N,N-bis-(2-ethylhexyl-4-methyl-p-benzotriazol-1-methylamine) and N,N-bis-(2-ethylhexyl-5-methyl-p-benzotriazol-1-methylamine), aminophosphate, acylsarcosinate, sterically hindered phenol, dithiophosphorous acid ester, alkylated diphenylamines, polymethylsiloxane and 3-diisobutoxythiophosphorylsulfanyl-2-methylpropionic acid as an additive agents.

Description

Description of the invention

The invention relates to composite lubricants, and specifically to turbine oils for lubrication of friction units of gas, steam, hydroturbines, turbocompressors, as well as for use as a hydraulic (working) fluid in regulation systems of this equipment, other industrial equipment and vehicles.

A feature of modern turbine oils is their high level of antioxidant and anti-corrosion properties, which ensure their operability in conditions of elevated temperatures, which reach up to 2002С and higher. Such requirements can be achieved under the conditions of using thermostable base oils in their composition and the introduction of additive compositions of various functional purposes, which provide high antioxidant, anticorrosive, antifoam, demulsifying, and in some cases antiwear properties of turbine oils.

The known composition of turbine oil (Patent KO2058376 C1, publ. 20.04.1996) contains, Uomas: -2,6-di-tert-butyl-4-methylphenol (additive Agidol-1) 0,2-1,0 -acid alkyl succinic ester acids (additive B-15/45) 0.01-1.0 -1-diethylaminomethylbenztriazole (additive Betol-1) 0.01-02 - mineral oil up to 100.

The composition of turbine oil is also known | Patent KO2144943 C1, publ. 07.01.2000), which contains, Uomas: -3,3'5,5-tetra-tert-butyl-4,4-dioxydiphenylmethane 0.1-2.0-acidic ester of alkyl succinic acid 0.01-0.03 s -1-diethylaminomethylbenzotriazole 0.01 g) -2,6-di-tert-butyl-4-methylphenol up to 7.0 -nitrogen-containing block copolymer of ethylene and propylene oxides 0.01-0.07 -polymethylsiloxane 0.003-0.005 -mineral oil up to 100 co

From co

Turbine oils of the composition described above are produced according to TU 38.101821-2001 "Turbine oil TP-22S. Mark 1, Mark 2". The disadvantage of these oils is their lack of stability against oxidation, which limits their workability in SM at temperatures no higher than 1502C. Table 1 shows the requirements for the antioxidant properties of turbine oils (patents KO 2058376 and KU 2144943) according to these technical conditions.

Table 1. co

Quality indicators Standards | Test method 7 7 o

Oxidation stability at 150 °C for 16 hours at an oxygen flow rate of 3 dm/h: GOST 981-75 45. о со - mass fraction of sediment AFTER OXIDATION, о, о no more than 0.01

Po) - acid value, mg KOH/: oil, no more than / 0.02 su 70 : : - volatile acids, mg KOH/g oil, no more than 0.15

IR e)

Friction units of modern gas and steam hydroturbines and turbocompressors, hydraulic systems of industrial equipment are mainly operated at temperatures reaching 2002С and higher.

The task of the present invention is to create a new composition of olive oil with improved

HF) with antioxidant properties, which would ensure its long-term operability in operating conditions at temperatures of 2002 and above.

The task was solved by the development of turbine oil, which contains a base oil and a composition of functional additives and is distinguished by the fact that as a base oil it contains a synthetic oil based on poly-u-olefins or a mixture of oil based on poly-x-olefins, oils hydrocracking and hydroisomerization and mineral oil. To ensure high antioxidant and anticorrosive properties, a composition of additives of the appropriate functional purpose was introduced into its composition with the following ratio of components, Uomas: b5 and

A. 4-noniphenoxyacetic acid 0.002-0.003 -Д-

B. 0 M,M-bis-(2-ethylhexyl-1,2,4-triazolyl-1-methylamine) 0.0020-0.0030 b. A mixture of M,M-bis-(2-ethylhexyl-4-methyl-p-benzotriazole-1-methylamine) and 0.0400-0.0530

M,M-bis-(2-ethylhexyl-5-methyl-p-benzotriazole-1-methylamine)

D. Aminophosphate 0.0025-0.0035

E. Acylsarcosinate 0.0012-0.0013

U. Sterically hindered phenol 0.2800-0.3300

ER. Dithiophosphoric acid ester 0.1400-0.1650 s. Alkalated diphenylamines 0.0250-0.0350 70 K. 3-diisobutoxythiophosphorylsulfanyl-2-methylpropionic acid 0.0450-0.0500

I. Polymethylsiloxane 0.0010-0.0050

M. Oil of hydrocracking hydroisomerization 0-30

M. Mineral oil 0-10

O. Synthetic oil based on poly-o-olefins up to 100. (Indicated letter indices of components are also used in table 2). The use in the composition of turbine oil as a base oil based on poly-x-olefins or a mixture of oil based on poly-b-olefins, hydrocracking and hydroisomerization oil and mineral oil, as well as the composition of the above additives in the ratio found by the authors ensures the creation of a new composition of turbine oil with improved thermal stability (see Table 3). Thus, the task was solved with the achievement of the necessary technical result.

All components of the proposed turbine oil are produced in industry: base oils - synthetic oil based on poly-x-olefins are produced under the trade name Nexbase 2006 (firm

RipEhit, Finland); c - hydrocracking and isomerization oil known under the trade name Nexbase 3043 (RipEhit, Finland); o - oil 1-20A according to GOST 20799-88 is used as mineral oil; additives - 4-nonylphenoxyacetic acid, corrosion inhibitor, produced under the trademark Irgakor NPA (firm

Syrah, Switzerland); Ge) -. M,M-bis-(2-ethylhexyl-1,2,4-triazolyl-1-methylamine), metal deactivator - trademark Irgamet 42 (Sira company, Switzerland); and. - a mixture of M,M-bis-(2-ethylhexyl-4-methyl-p-benzotriazole-1-methylamine) and Ha

M,M-bis-(2-ethylhexyl-5-methyl-p-benzotriazole-1-methylamine), metal deactivator - trade mark Irgamet 39 (Sira company, Switzerland); - - aminophosphate, anti-wear additive - trade mark Irga lyubé 349, (Sira company, Switzerland); Ge) - acyl sarcosinate, corrosion inhibitor - trademark Sarkozil-0, (Sira company, Switzerland); - sterically hindered phenol, antioxidant - trade mark Irganox I 153, (Sira company, Switzerland); - dithiophosphoric acid ester, anti-wear additive - trade mark Irgalyube-63, (Siva company,

Switzerland); - alkylated diphenylamines, antioxidant - trade mark Irganox I. 57 (Sira company, Switzerland); shsh c - 3-diisobutoxythiophosphorylsulfanyl-2-methylpropionic acid, anti-wear additive - trade name and brand Irgalyube 353 (Sira company, Switzerland); "" - polymethylsiloxane, antifoam additive - trademark PMO-200A (OST 6-02-20-79);

Turbine oil is made by mixing the components in an apparatus equipped with a stirring device and a heating jacket to a temperature of 60-8026. (o Base oil (synthetic oil based on poly-x-olefins or a mixture of oils obtained on the basis of poly-x-olefins and products of hydrocracking and hydroisomerization and mineral oil) is loaded into the apparatus with a stirring device, heated while stirring to 60-802С At these temperatures, when mixing, the calculated amount of additives is loaded. It is maintained under these conditions with stirring and 50 degrees of circulation through coarse and fine filters until complete dissolution of the additives is achieved.

The composition of the manufactured turbine oil samples according to the proposed recipe is shown in Table 2.

IR e)

F) name) 60 b5

Table 2

Lyer index Content of components in samples of turbine oil, 25 wt. 0.0025 00025 | 00020 | 0.0020 | 00030 | 00030

In 0.0025 0.0025 | 00020 | 0.0020 | 00030 | 0.0030 00400 00450 | 00450 | 00450 | 00530 | 0.0530

In 0.0300 0.0300 | 00250 | 00250 | 00350 | 00350 0.00125 0.00125 | 000120 | 0.00120 | 0.00130 | 000130 shi 0.3100 03100 | 02800 0.2800 | 03300 | 03500 0.1550 0.1550 1 01400 1 01400 | 01650. 01650 sch 2 00300 0.0300 | 00250 | 00250 | 0.0350 00350 o 0.0470 00470 1 00500 00500 | 00450 | 00450 from 0.0030 0.0030 | 0.0050 | 0.0035 | 00010 | 0.0025 so

M 19111115 15 no PY S SL y

And | y o Up to 100 Up to 100 | Up to 100 | Up to 100 | Up to 100 | Up to 100

Table C shows the properties of samples of the proposed turbine oil. « - with (ee) (av) ko o 50 (Che)

FI ko bo 65

Table 3.

Method

Pokvniki wich vhrzhue 1 13 Z 5 6

Acid number to | GOST / about oxidation, mg COP/g. 11362-76 0 0 0 I) 0 0

Oxidation stability at 150 "С, for 16 75 | HOURS and speed | GOST 981-75 of O supply; With dm'/h, - sediment, 70 % | % | % | % | % | % - acid value, mg KOH/g 0 0 0 0 0 0 - volatile acids, mg KOH/: %, | %, % | % | % | % (5)

Oxidation stability at 200 "С, for 50 hours. 1 air flow rate Iod d dm'/h and catalytic action GOST sch

Si, AI, art. SHH-15 181136-72 (av) | - increase in kinematic DSTU GOST with viscosity, mm/s 33-2003 0.6510.83 10.97 0.68 0.59 | 0.57 - acid number after gost « 40. | oxidation, mg KOH/gH 11362-76 percent | dept. | reps, | dept. | dept. | dept. t s

From - corrosion on guest plates, g/cm": 19199-73 so a) Steel ShKH-15 guest o (GOST 801-758) 19199-73 vid. | div. | div. | div. | div. | div. ko su 2 b) Copper grade M-1 GOST o 2917- so (GOST 859-78) 76 percent | percent | percent | percent | percent | percent c) Aluminum alloy GOST 2917-

AK-4 (GOST 4784-97) 76 videos. | dept. | see dept. | dept. | dept.

Ф) ю From the data of Tables 1 and 3 it can be seen that the proposed oil has a higher oxidation stability compared to the oils proposed by the patent (KO 2058376 C1 and patent KI 2144943 ST). because the oxidation of the proposed oil at 20092 for 50 hours also confirms not only high stability to oxidation, but also high anti-corrosion properties to both non-ferrous metals and steel

St. ShХх-15.

Claims (2)

65 Formula of the invention 1. Turbine oil for thermally loaded gas turbine units, containing a base oil and a composition of functional additives, which differs in that it contains 4-nonylphenoxyacetic acid, M,M-bis-(2-ethylhexyl-1,2,4-triazolyl- 1-methylamine), a mixture of M,M-bis-(2-ethylhexyl-4-methyl-p-benzotriazole-1-methylamine) and M,M-bis-(2-ethylhexyl-5-methyl-p-benzotriazole-1 -methylamine), aminophosphate, acylsarcosinate, sterically hindered phenol, dithiophosphoric acid ester, alkylated diphenylamines, 3-diisobutoxythiophosphorylsulfanyl-2-methylpropionic acid and opolymethylsiloxane at this ratio of components, 9% by weight: A4-nonylphenoxyacetic acid 0.0020-0.0030 M, M-bis-(2-ethylhexyl-1,2,4-triazolyl-1-methylamine) 0.0020-0.0030 mixture /M,M-bis-(2-ethylhexyl-4-methyl-p-benzotriazole-1 -methylamine) and M,M-bis-(2-ethylhexyl-5-methyl-p-benzotriazole-1-methylamine) 0.0400-0.0530 aminophosphate 0.0025-0.0035 acyl sarcosinate 0.0012-0.0013 sterically hindered phenol 0.2800-0.3300 dithiophosphoric acid ester 0.1 400-0.1650 alkylated diphenylamines 0.0250-0.0350 3-diisobutoxythiophosphorylsulfanyl-2-methylpropionic acid 0.0450-0.0500 polymethylsiloxane 0.0010-0.0050 s base oil up to 100. o 2. Turbine oil according to claim 1, which differs in that it contains a synthetic oil based on poly-A-olefins as a base oil. C. Turbine oil according to claim 1, which differs in that as a base oil it contains a mixture of: oils with hydrocracking-hydroisomerization 10-30, mineral oil 5-10 and synthetic oil based on poly-A-olefins up to 100. Official Bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2007, M 13, 27.08.2007. State Department of Intellectual Property of the Ministry of Education and "2 Sciences of Ukraine. In r d) - . and? (ee) («c) name) (95) IR e) name) 60 b5