CN113202744B - Oil injection system for corrosion prevention of reciprocating compressor cylinder under acidic medium - Google Patents
Oil injection system for corrosion prevention of reciprocating compressor cylinder under acidic medium Download PDFInfo
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- CN113202744B CN113202744B CN202110374023.9A CN202110374023A CN113202744B CN 113202744 B CN113202744 B CN 113202744B CN 202110374023 A CN202110374023 A CN 202110374023A CN 113202744 B CN113202744 B CN 113202744B
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- oil
- oil injection
- injection system
- compressor cylinder
- pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
For acid mediumAnticorrosive oil injection system of lower reciprocating compressor cylinder includes and connects gradually oil tank, oil pump, booster valve, first check valve and notes oil pipe through the pipeline, on the notes oil pipe intercommunication compressor intake pipe. The invention is used for solving the problem of H 2 The weight loss corrosion rate of the natural gas compressor cylinder with the S content of more than 15 percent and the internal parts of the natural gas compressor cylinder is high, so that the service life of the unit is shortened.
Description
Technical Field
The invention relates to an oil injection system for corrosion prevention of a reciprocating compressor cylinder under an acidic medium.
Background
Containing H 2 S or CO 2 The natural gas compressor cylinder, the gas valve, the valve cover and the like of the acid medium are selected to meet the criterion of acid gas in NACE 0175 standard, and the selected material has low SSC sensitivity in an acid environment. General H 2 The natural gas compressor unit with low S content can meet the use requirement by selecting a cylinder material with low SSC sensitivity, the natural gas compressor unit with the H2S content of more than 15% has no design development and use achievement at present in China, and although the cylinder material has low SSC sensitivity and meets the NACE 0175 requirement, tests show that the material has high weight loss corrosion rate, and the cylinder is easy to corrode and damage to shorten the service life.
Disclosure of Invention
The invention aims to solve the technical problem of providing an oil injection system for preventing corrosion of a reciprocating compressor cylinder under an acidic medium, which is used for solving the problem of H 2 The weight loss corrosion rate of the natural gas compressor cylinder with the S content of more than 15 percent and the internal parts of the natural gas compressor cylinder is high, so that the service life of the unit is shortened.
In order to solve the above problems, the technical solution to be solved by the present invention is:
the utility model provides an anticorrosive oil injection system of reciprocating compressor cylinder under being used for acid medium, includes to connect gradually through the pipeline oil tank, oil pump, booster valve, first check valve and notes oil pipe, on the notes oil pipe intercommunication compressor intake pipe.
The oil pump is provided with a plunger pump, and an output shaft of a transmission box of the oil ejector is in transmission connection with a rotating shaft of the plunger pump.
The annular plate is arranged at one end of the air inlet pipe, the annular cavity is arranged in the annular plate and communicated with a plurality of oil injection holes, and the oil injection holes are uniformly distributed around the axis of the annular cavity.
The pipeline between the first one-way valve and the oil filling hole is communicated with the exhaust port of the compressor through an air inlet pipe, the air inlet pipe is provided with a second one-way valve and a roller type two-position two-way valve, and the output shaft of the oil filler is provided with a cam for driving the roller type two-position two-way valve to change positions.
The invention has the beneficial effects that:
1. effectively slow down the corrosion of compressor cylinder and internals, improve the life of cylinder, pneumatic valve.
2. Atomized lubricating oil enters the working cavity of the cylinder along with gas, is uniformly distributed, is favorable for better lubrication of the cylinder, and prolongs the service life of the cylinder sleeve and the piston ring.
Drawings
The invention is further described below with reference to the accompanying drawings:
figure 1 is a schematic structural view of the present invention,
FIG. 2 is a schematic cross-sectional view of a ring plate according to the present invention.
In the figure: the oil injection device comprises an oil injection device transmission case 1, an oil injection device transmission case output shaft 2, a cam 3, an oil tank 4, a booster valve 5, an oil injection pipe 6, a compressor air inlet pipe 7, an annular plate 8, a second one-way valve 9, a first one-way valve 10, a filter 11, an oil pump 12, a roller type two-position two-way valve 13, an annular cavity 14 and an oil injection hole 15.
Detailed Description
As shown in fig. 1 and 2, the oil injection system for corrosion prevention of the reciprocating compressor cylinder under the acidic medium comprises an oil tank 4, an oil pump 12, a booster valve 5, a first one-way valve 10 and an oil injection pipe 6 which are sequentially connected through pipelines, wherein the oil injection pipe 6 is communicated with an air inlet pipe 7 of the compressor.
The invention adds an oil injection system at the flange opening of the air inlet pipe 7 of the cylinder, the system improves the injection pressure of lubricating oil through the pressure increasing valve 5, the injection oil pressure is greatly higher than the gas pressure at the air inlet flange opening, so that the lubricating oil injected into each air inlet flange opening of the cylinder generates an atomization effect, and the lubricating oil is ensured to be completely distributed on the surfaces of the air cavity and the air valve. The lubricating oil has the function of preventing the natural dissolution of the acid gas, and the atomized lubricating oil forms an oil film on the surfaces of the cylinder air cavity and all valves, so that the corrosion can be better isolated.
The oil pump 12 is provided with a plunger pump, and the output shaft 2 of the oil ejector transmission box is in transmission connection with a rotating shaft of the plunger pump. And the plunger pump supplies oil to the oil injection system according to the beat of the oil injector.
An annular plate 8 is arranged at one end of the air inlet pipe 7, an annular cavity 14 is arranged in the annular plate 8, the annular cavity 14 is communicated with a plurality of oil injection holes 15, and the oil injection holes 15 are uniformly distributed around the axis of the annular cavity 14. The lubrication can be uniformly sprayed into the cylinder, and the atomization effect is improved.
A pipeline between the first one-way valve 10 and the oil filling hole is communicated with an exhaust port of the compressor through an air inlet pipe 7, a second one-way valve 9 and a roller type two-position two-way valve 13 are installed on the air inlet pipe 7, and a cam 3 for driving the roller type two-position two-way valve 13 to shift is installed on an output shaft 2 of the oil filler transmission case. The gas pressure at the air outlet of the compressor is higher than that of the air inlet pipe 7, when lubricating oil enters the oil injection pipe 6 or the annular plate 8 in a pulse mode, the roller type two-position two-way valve 13 is switched, and the air mixed with the lubricating oil at the air outlet is sprayed into the air inlet pipe 7, so that the lubricating oil can be dispersed and sent into the air inlet pipe 7 in an atomized mode and then atomized again, and the atomization effect is further improved.
Claims (2)
1. The utility model provides a be used for anticorrosive oil injection system of reciprocating compressor cylinder under acid medium which characterized in that: the device comprises an oil tank (4), an oil pump (12), a booster valve (5), a first one-way valve (10) and an oil filling pipe (6) which are sequentially connected through pipelines, wherein the oil filling pipe (6) is communicated with an air inlet pipe (7) of a compressor; an annular plate (8) is arranged at one end of the air inlet pipe (7), an annular cavity (14) is arranged in the annular plate (8), the annular cavity (14) is communicated with a plurality of oil injection holes (15), and the oil injection holes (15) are uniformly distributed around the axis of the annular cavity (14); a pipeline between the first check valve (10) and the oil filling hole is communicated with an exhaust port of the compressor through an exhaust pipe, a second check valve (9) and a roller type two-position two-way valve (13) are installed on the exhaust pipe, and a cam (3) for driving the roller type two-position two-way valve (13) to shift is installed on an output shaft of the oil filler transmission case (1).
2. The oil injection system for corrosion protection of a cylinder of a reciprocating compressor in an acidic medium of claim 1, wherein: the oil pump (12) is provided with a plunger pump, and an output shaft of the oil ejector transmission case (1) is in transmission connection with a rotating shaft of the plunger pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110374023.9A CN113202744B (en) | 2021-04-07 | 2021-04-07 | Oil injection system for corrosion prevention of reciprocating compressor cylinder under acidic medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110374023.9A CN113202744B (en) | 2021-04-07 | 2021-04-07 | Oil injection system for corrosion prevention of reciprocating compressor cylinder under acidic medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113202744A CN113202744A (en) | 2021-08-03 |
| CN113202744B true CN113202744B (en) | 2022-12-02 |
Family
ID=77026360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110374023.9A Active CN113202744B (en) | 2021-04-07 | 2021-04-07 | Oil injection system for corrosion prevention of reciprocating compressor cylinder under acidic medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113202744B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200964948Y (en) * | 2006-10-17 | 2007-10-24 | 孙鹏飞 | Cylinder rolling type compressor |
| CN101816995A (en) * | 2009-02-26 | 2010-09-01 | 上海图博可特石油管道涂层有限公司 | Full automatic outer corrosion prevention oiling device |
| CN101984247B (en) * | 2010-11-04 | 2013-07-31 | 中国第一汽车集团公司 | Pressurizing common-rail oil injection system |
| CN202418002U (en) * | 2011-12-30 | 2012-09-05 | 山东潍焦集团有限公司 | Anti-corrosion device for gas blower rotor of coke oven |
| CN105134558A (en) * | 2015-08-27 | 2015-12-09 | 中国石油集团济柴动力总厂成都压缩机厂 | Cylinder head for reciprocating piston type gas compressor |
| UA147475U (en) * | 2018-06-24 | 2021-05-12 | Акціонєрноє Общєство "Румо" | Reciprocating compressor |
| CN110043783B (en) * | 2019-04-18 | 2021-07-13 | 黑龙江大学 | Pressurization controllable oil injection device and method |
-
2021
- 2021-04-07 CN CN202110374023.9A patent/CN113202744B/en active Active
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| CN113202744A (en) | 2021-08-03 |
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