CN107859615A - A kind of new type of compression unit is vented flow - Google Patents
A kind of new type of compression unit is vented flow Download PDFInfo
- Publication number
- CN107859615A CN107859615A CN201711171098.7A CN201711171098A CN107859615A CN 107859615 A CN107859615 A CN 107859615A CN 201711171098 A CN201711171098 A CN 201711171098A CN 107859615 A CN107859615 A CN 107859615A
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- CN
- China
- Prior art keywords
- unit
- design
- pressure
- orifice plate
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/03—Stopping, starting, unloading or idling control by means of valves
Abstract
The invention belongs to petroleum equipment field, a kind of new type of compression unit emptying flow specifically used in Gas Industry.Main design, the design of the design and processes flow of single orifice plate for including balance pressure.The voltage endurance capability of a system in unit is improved during design by balance pressure (pressure after each stage pressure neutralization) design.Logic control order after adjustment is that unit is connected to shutdown flow, first opens recycle control valve, each stage pressure is balanced in such unit.Then unloading operation is carried out, after running about 5 minutes, is shut down.Whole unit can be regarded as to a container after shutdown, due to be mounted with unit blow-down pipe one emptying single orifice plate, as long as therefore according to API521 in 15 minutes by the pressure releasing in container (unit) to 0.69MpaG.The present invention makes solve the problems, such as that compressor set decompression downtime is long, saves cost and space, more competitive；Nitrogen cylinder, air accumulator etc. are not needed, design and operation are more succinct.
Description
Technical field
The invention belongs to petroleum equipment field, a kind of new type of compression unit emptying stream specifically used in Gas Industry
Journey.
Background technology
Compressor is the equipment for improving gas pressure, and outlet pressure is higher.To be vented after compressor shutdown, and
The design pressure of exhausting pipeline is generally significantly less than outlet pressure.Therefore directly emptying may be to exhausting pipeline after compressor shutdown
Cause to damage, to avoid potential risk, 0.69MpaG is not to be exceeded in the pressure that blow-down pipe is generally entered according to API521.Therefore need
To add an orifice plate in drain, compressor delivery pressure is typically higher, if to be depressured to 0.69MpaG, it is necessary to increase by one
Multistage orifice plate.
Before compressor shutdown, unit is still being run, and only opens atmospheric valve.Although multistage orifice plate can be depressured, unit
Internal pressure releasing is slower, and pressure does not release in unit, just can not enter discharged later and shut down flow.
Situation about therefore can not be shut down using often occurring during multistage orifice plate.
Newly-designed flow, unit logic control order is have adjusted, optimizes unit design, it is final only in compressor outlet
Add a single orifice plate that unit effectively decompression and shutdown can be achieved.
The content of the invention
The present invention is exactly a kind of new type of compression unit emptying flow above-mentioned in order to solve the problems, such as, and inventing.
The present invention relates to compressor emptying Row control field, main design, the design of single orifice plate for including balance pressure
With the design of technological process.
The voltage endurance capability of a system in unit is improved during design by balance pressure (pressure after each stage pressure neutralization) design.
Logic control order after adjustment is that unit is connected to shutdown flow, first opens recycle control valve, each stage pressure obtains in such unit
To balance.Then unloading operation is carried out, after running about 5 minutes, is shut down.Whole unit can be regarded as one after shutdown
Container, due to be mounted with unit blow-down pipe one emptying single orifice plate, as long as therefore according to API521 in 15 minutes by container
Pressure releasing in (unit) is to 0.69MpaG.
Simulated with Hysys dynamic modules, calculate that the orifice plate internal diameter being put into needed for 0.69MpaG is write from specified pressure is big
It is small to complete design.
The present invention produces positive effect
Make solve the problems, such as that compressor set decompression downtime is long, save cost and space, it is more competitive；Need not
Nitrogen cylinder, air accumulator etc., design and operation are more succinct.
Brief description of the drawings
Fig. 1 is the control emptying schematic diagram of the present invention.
Marked in figure：
1st, flow back pressure regulator valve, 2, atmospheric valve, 3, exhaust shut-off valve, 4, air inlet shut-off valve, 5, compressor, 6, air inlet pipe, 7,
Blast pipe, 8, blow-down pipe.
Embodiment
Logic control order after present invention adjustment is that unit is connected to shutdown flow, first opens recycle control valve, this model machine
Each stage pressure is balanced in group.Then unloading operation is carried out, after running about 5 minutes, is shut down.Can will be whole after shutdown
Individual unit regards a container as, due to being mounted with an emptying single orifice plate at unit drain, as long as therefore existing according to API521
By the pressure releasing in container (unit) to 0.69MpaG in 15 minutes.
The present invention is mounted with an emptying single orifice plate at unit blow-down pipe, as long as therefore according to API521 in 15 minutes
By the pressure releasing in container (unit) to 0.69MpaG.
Simulated with Hysys dynamic modules, calculate that the orifice plate internal diameter being put into needed for 0.69MpaG is write from specified pressure is big
It is small to complete design.
In summary, the present invention is rational in infrastructure, safe for operation reliable and stable, easy to use.
Claims (2)
1. a kind of new type of compression unit is vented flow, it is characterized in that：The main design for including balance pressure, the design of single orifice plate and
The design of technological process, the resistance to of a system in unit is improved by balance pressure (each stage pressure neutralize after pressure) design during design
It is that unit is connected to shutdown flow to press the logic control order after capacity adjusting, first opens recycle control valve, at different levels in such unit
Pressure is balanced, and then carries out unloading operation, after running about 5 minutes, is shut down, can see whole unit after shutdown
Into a container, due to being mounted with an emptying single orifice plate at unit blow-down pipe, as long as therefore according to API521 in 15 minutes
By the pressure releasing in container (unit) to 0.69MpaG.
2. a kind of new type of compression unit emptying flow according to claim 1, it is characterized in that：Entered with Hysys dynamic modules
Row simulation, calculates and the orifice plate internal diameter size being put into needed for 0.69MpaG is write from specified pressure completes design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711171098.7A CN107859615A (en) | 2017-11-22 | 2017-11-22 | A kind of new type of compression unit is vented flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711171098.7A CN107859615A (en) | 2017-11-22 | 2017-11-22 | A kind of new type of compression unit is vented flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107859615A true CN107859615A (en) | 2018-03-30 |
Family
ID=61703457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711171098.7A Pending CN107859615A (en) | 2017-11-22 | 2017-11-22 | A kind of new type of compression unit is vented flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859615A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621864A (en) * | 2018-12-03 | 2019-04-16 | 浙江工业大学 | A kind of low noise purge process for reacting kettle nitrogen replacement |
| CN110080965A (en) * | 2019-04-09 | 2019-08-02 | 中国石油集团济柴动力有限公司成都压缩机分公司 | A kind of multi-level gas compressibility and operation method for supercritical carbon dioxide |
| CN110080972A (en) * | 2019-04-09 | 2019-08-02 | 中国石油集团济柴动力有限公司成都压缩机分公司 | A kind of the unloading blowdown system and its process of supercritical carbon dioxide compressibility |
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|---|---|---|---|---|
| DE10337360A1 (en) * | 2003-08-14 | 2005-03-24 | Zf Lenksysteme Gmbh | Device for controlling a liquid flow onto the pressure side of a volumetric pump, e.g. sliding vane pump, comprises a compression spring which has a progressive spring characteristic |
| WO2007068336A8 (en) * | 2005-12-17 | 2008-01-31 | Ixetic Mac Gmbh | Air-conditioning compressor |
| CN103334902A (en) * | 2013-06-28 | 2013-10-02 | 江汉石油钻头股份有限公司 | Non-emptying unloading start-up system and non-emptying unloading start-up method for compressor |
| CN204663896U (en) * | 2014-12-31 | 2015-09-23 | 深圳市冠瑞达能源装备有限公司 | A kind of pneumatic control system of natural gas screw compressor |
| CN205918571U (en) * | 2016-08-10 | 2017-02-01 | 广西柳工机械股份有限公司 | Air compressor system of uninstalling |
| CN107035671A (en) * | 2017-06-23 | 2017-08-11 | 山河智能装备股份有限公司 | A kind of air compressor air intake control system and its control method |
-
2017
- 2017-11-22 CN CN201711171098.7A patent/CN107859615A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10337360A1 (en) * | 2003-08-14 | 2005-03-24 | Zf Lenksysteme Gmbh | Device for controlling a liquid flow onto the pressure side of a volumetric pump, e.g. sliding vane pump, comprises a compression spring which has a progressive spring characteristic |
| WO2007068336A8 (en) * | 2005-12-17 | 2008-01-31 | Ixetic Mac Gmbh | Air-conditioning compressor |
| CN103334902A (en) * | 2013-06-28 | 2013-10-02 | 江汉石油钻头股份有限公司 | Non-emptying unloading start-up system and non-emptying unloading start-up method for compressor |
| CN204663896U (en) * | 2014-12-31 | 2015-09-23 | 深圳市冠瑞达能源装备有限公司 | A kind of pneumatic control system of natural gas screw compressor |
| CN205918571U (en) * | 2016-08-10 | 2017-02-01 | 广西柳工机械股份有限公司 | Air compressor system of uninstalling |
| CN107035671A (en) * | 2017-06-23 | 2017-08-11 | 山河智能装备股份有限公司 | A kind of air compressor air intake control system and its control method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621864A (en) * | 2018-12-03 | 2019-04-16 | 浙江工业大学 | A kind of low noise purge process for reacting kettle nitrogen replacement |
| CN109621864B (en) * | 2018-12-03 | 2020-10-23 | 浙江工业大学 | Low-noise emptying method for nitrogen replacement of reaction kettle |
| CN110080965A (en) * | 2019-04-09 | 2019-08-02 | 中国石油集团济柴动力有限公司成都压缩机分公司 | A kind of multi-level gas compressibility and operation method for supercritical carbon dioxide |
| CN110080972A (en) * | 2019-04-09 | 2019-08-02 | 中国石油集团济柴动力有限公司成都压缩机分公司 | A kind of the unloading blowdown system and its process of supercritical carbon dioxide compressibility |
| CN110080972B (en) * | 2019-04-09 | 2020-05-26 | 中国石油集团济柴动力有限公司成都压缩机分公司 | Unloading and emptying system of supercritical carbon dioxide compression system and process thereof |
| CN110080965B (en) * | 2019-04-09 | 2020-06-12 | 中国石油集团济柴动力有限公司成都压缩机分公司 | Multistage gas compression system for supercritical carbon dioxide and operation method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180330 |