CN205858683U - Screw compressor pressure at expulsion governor motion - Google Patents
Screw compressor pressure at expulsion governor motion Download PDFInfo
- Publication number
- CN205858683U CN205858683U CN201620828788.XU CN201620828788U CN205858683U CN 205858683 U CN205858683 U CN 205858683U CN 201620828788 U CN201620828788 U CN 201620828788U CN 205858683 U CN205858683 U CN 205858683U
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- CN
- China
- Prior art keywords
- inlet
- liquid outlet
- screw compressor
- hydraulic cylinder
- expulsion
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 239000012530 fluid Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 208000002925 dental caries Diseases 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009355 double cropping Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A kind of screw compressor pressure at expulsion governor motion, including controller, baroceptor, guiding valve and double acting hydraulic cylinder.The cylinder body of double acting hydraulic cylinder is divided into the first sap cavity and the second sap cavity by piston, the sidewall of the both sides of described first sap cavity is respectively arranged with the first inlet and the first liquid outlet, and the sidewall of the both sides of described second sap cavity is respectively arranged with the second inlet and the second liquid outlet.Described first inlet, the first liquid outlet, the second inlet, the second liquid outlet are fitted with electrically-controlled valve, and described electrically-controlled valve is all connected with controller.Screw compressor pressure at expulsion governor motion controls double acting hydraulic cylinder by controller, adjusts spool position, controls admission pressure, it is ensured that pressure at expulsion is stable, and overall structure is simple, low cost, and automaticity is high, processing ease, and power consumption is few.
Description
Technical field
This utility model relates to a kind of mechanic adjustment unit, specifically, is a kind of for adjusting screw rod formula compressor row
The governor motion of atmospheric pressure.
Background technology
At present in Gas Industry, general screw formula compressor carries out the application such as natural gas collecting, gas storage, conveying, typically
Require that screw compressor pressure at expulsion stably exports.But in gas exploitation course, exist upstream supply gas pressure unstable,
The factors such as changes in flow rate is big so that the pressure at expulsion of screw compressor along with on have supply gas pressure to fluctuate, and screw
Compressor cannot realize pressure at expulsion stable regulation voluntarily, it is impossible to reaches the requirement that pressure at expulsion stably exports.Currently, for spiral shell
Bar Compressor Discharge Pressure regulates, and commonly used in industry increases reflux pipeline at aerofluxus and admission line, is refluxed by regulation
Proportion adjustment valve opening on pipeline, stablizes pressure at expulsion.But which exists, and application cost is high, it is complicated to control, it is high to consume energy
Problems.
Utility model content
This utility model, for above-mentioned problems of the prior art, proposes a kind of low cost, easy to control, low power consuming
Screw compressor pressure at expulsion governor motion.
Screw compressor pressure at expulsion governor motion of the present utility model, including controller, baroceptor, guiding valve and
Double acting hydraulic cylinder.
Described guiding valve is slidably mounted on the blow vent of housing setting of screw compressor.
Described baroceptor is arranged on the air vent of screw compressor, and is connected with controller.
Described double acting hydraulic cylinder is arranged on the housing of screw compressor, drives guiding valve to slide by piston rod.
The cylinder body of described double acting hydraulic cylinder is divided into the first sap cavity and the second sap cavity, the both sides of described first sap cavity by piston
Sidewall be respectively arranged with the first inlet and the first liquid outlet, the sidewall of the both sides of described second sap cavity is respectively arranged with second
Inlet and the second liquid outlet.
Described first inlet, the first liquid outlet, the second inlet, the second liquid outlet are fitted with electrically-controlled valve, described electricity
Control valve is all connected with controller.
Preferably, described double acting hydraulic cylinder connects a fluid reservoir, described first inlet, the first liquid outlet, second
Inlet and the second liquid outlet all pass through connecting pipeline and are connected with fluid reservoir, and described connecting pipeline is provided with liquid pump, described liquid
Pump is connected with controller.
The beneficial effects of the utility model are: screw compressor pressure at expulsion governor motion controls double cropping by controller
With hydraulic cylinder, adjusting spool position, control admission pressure, it is ensured that pressure at expulsion is stable, overall structure is simple, low cost, automatically
Change degree is high, processing ease, and power consumption is few.The feed liquor of two cavitys of double acting hydraulic cylinder and go out liquid and be all controlled by electrically-controlled valve,
Improve the control accuracy of double acting hydraulic cylinder, strengthen the stability of regulation final vacuum pressure.And the feed liquor of two cavitys and
The speed going out liquid is also controlled by, and improves the response speed of regulation, further enhances the stability of regulation final vacuum pressure.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of screw compressor pressure at expulsion governor motion；
Accompanying drawing 2 is the structural representation of double acting hydraulic cylinder part.
Detailed description of the invention
In order to be able to further appreciate that structure of the present utility model, feature and other purpose, in conjunction with appended preferred embodiment
Describing in detail as follows, illustrated preferred embodiment is merely to illustrate the technical solution of the utility model, and non-limiting practicality
Novel.
Detailed description of the invention of the present utility model is as follows:
If Fig. 1 is to shown in 2, this screw compressor pressure at expulsion governor motion, it is arranged on the housing 1 of screw compressor
On, including controller, baroceptor, guiding valve 2 and double acting hydraulic cylinder 3.
Guiding valve 2 is slidably mounted on the screw machine rotor chamber outer wall 4 of housing 1 setting of screw compressor, adjusting screw rod
The size of machine compression chamber.
Baroceptor is positioned on the air vent of screw compressor, the air pressure of detection screw compressor aerofluxus, and will
The barometric information detected passes to coupled controller.
Double acting hydraulic cylinder 3 is packed on housing, drives guiding valve 2 to slide by piston rod 5.
The cylinder body of double acting hydraulic cylinder 3 is divided into two sap cavities by piston 6, is the first sap cavity 7 and the second sap cavity 8 respectively.Often
Individual sap cavity has inlet and liquid outlet, the sidewall of the both sides of the i.e. first sap cavity 7 to be respectively provided with the first liquid outlet 9 and the first feed liquor
Mouth 10, the sidewall of the both sides of the second sap cavity 8 is respectively provided with the second liquid outlet 11 and the second inlet 12.
Each inlet and liquid outlet install electrically-controlled valve, namely first liquid outlet the 9, first inlet 10, second go out
Liquid mouth the 11, second inlet 12 is fitted with electrically-controlled valve, controls its connection or closes.Electrically-controlled valve is all connected with controller.
Baroceptor detects the air pressure of compressed gas after being compressed by screw compressor in real time, and is passed by barometric information
To controller, barometric information is compared by controller with setting value.If barometric information is more than setting value, controller cuts out first
Liquid outlet 9 and the electrically-controlled valve of the second inlet 12, open the second liquid outlet 11 and electrically-controlled valve of the first inlet 10, make double acting
The piston rod of hydraulic cylinder 3 is regained, and pulls guiding valve 2, reduces screw machine compression chamber volume, makes the tolerance of entrance screw compressor subtract
Few, thus the air pressure of compressed gas after reducing screw compressor compression.Otherwise, if barometric information is less than setting value, controller
Then close the second liquid outlet 11 and electrically-controlled valve of the first inlet 10, open the automatically controlled of the first liquid outlet 9 and the second inlet 12
Valve, makes the piston rod of double acting hydraulic cylinder 3 stretch out, and promotes guiding valve 2, increases screw machine compression chamber volume, makes entrance screw pressure
The tolerance of contracting machine increases, thus the air pressure of compressed gas after increasing screw compressor compression.
By the most dynamically adjusting, barometric information is made to be equal to setting value, so that compressing after screw compressor compression
The air pressure of gas is steady, it is achieved stable output.
In order to improve the response speed of regulation further, double acting hydraulic cylinder 3 connects fluid reservoir, the first inlet 10,
First liquid outlet the 9, second inlet 12 is all connected with fluid reservoir by connecting pipeline with the second liquid outlet 11, and connecting pipeline is pacified
Equipped with liquid pump, liquid pump is connected with controller.
First inlet the 10, first sap cavity the 7, first liquid outlet 9 and fluid reservoir are as first fluid loop, the second inlet
12, second sap cavity the 8, second liquid outlet 11 and fluid reservoir are as second fluid loop.In two fluid circuits, an at least stream
Liquid pump is installed on the connecting pipeline in body loop.
When electrically-controlled valve controls each inlet and liquid outlet makes liquid flow, and drives the piston rod of double acting hydraulic cylinder 3,
Liquid pump then accelerates injection or the eliminating of liquid, accelerates the translational speed of double acting hydraulic cylinder 3 piston rod, improves thus improves gas
The governing speed of pressure.
Claims (2)
1. a screw compressor pressure at expulsion governor motion, it is characterised in that include controller, baroceptor, guiding valve
(2) and double acting hydraulic cylinder (3),
Described guiding valve (2) is slidably mounted on screw machine rotor chamber outer wall (4) that the housing (1) of screw compressor is arranged,
Described baroceptor is arranged on the air vent of screw compressor, and is connected with controller,
Described double acting hydraulic cylinder (3) is arranged on the housing (1) of screw compressor, drives guiding valve (2) by piston rod (5)
Slide,
The cylinder body of described double acting hydraulic cylinder (3) is divided into the first sap cavity (7) and the second sap cavity (8), described first liquid by piston (6)
The sidewall of the both sides in chamber (7) is respectively arranged with the first inlet (10) and the first liquid outlet (9), the two of described second sap cavity (8)
The sidewall of side is respectively arranged with the second inlet (12) and the second liquid outlet (11),
Described first inlet (10), the first liquid outlet (9), the second inlet (12), the second liquid outlet (11) are fitted with electricity
Control valve, described electrically-controlled valve is all connected with controller.
Screw compressor pressure at expulsion governor motion the most according to claim 1, it is characterised in that described double-action hydraulic
Cylinder (3) connects fluid reservoir, described first inlet (10), the first liquid outlet (9), the second inlet (12) and the second liquid outlet
(11) all passing through connecting pipeline to be connected with fluid reservoir, described connecting pipeline is provided with liquid pump, described liquid pump is connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620828788.XU CN205858683U (en) | 2016-07-31 | 2016-07-31 | Screw compressor pressure at expulsion governor motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620828788.XU CN205858683U (en) | 2016-07-31 | 2016-07-31 | Screw compressor pressure at expulsion governor motion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858683U true CN205858683U (en) | 2017-01-04 |
Family
ID=57654608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620828788.XU Expired - Fee Related CN205858683U (en) | 2016-07-31 | 2016-07-31 | Screw compressor pressure at expulsion governor motion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205858683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801619A (en) * | 2017-03-03 | 2017-06-06 | 上海维尔泰克螺杆机械有限公司 | The adjustable screw expander of volumetric ratio |
-
2016
- 2016-07-31 CN CN201620828788.XU patent/CN205858683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801619A (en) * | 2017-03-03 | 2017-06-06 | 上海维尔泰克螺杆机械有限公司 | The adjustable screw expander of volumetric ratio |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |