CN207865040U - A kind of distribution point defeated station natural gas compression system - Google Patents
A kind of distribution point defeated station natural gas compression system Download PDFInfo
- Publication number
- CN207865040U CN207865040U CN201820241048.5U CN201820241048U CN207865040U CN 207865040 U CN207865040 U CN 207865040U CN 201820241048 U CN201820241048 U CN 201820241048U CN 207865040 U CN207865040 U CN 207865040U
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- compressor
- pressure
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- natural gas
- box
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Abstract
The utility model discloses a kind of distributed point defeated station natural gas compression systems, including control system, compressor, gear-box, screw expander, pressure-control valve, gearing shaft, anti-surge motor-driven valve, control system is for controlling compressor, gear-box and screw expander, pressure-control valve, the intelligent operation of anti-surge motor-driven valve, the gear drive axis connection of center is installed in screw expander shaft and gear-box is installed, the connection installation of the connecting rod of gear-box gear shaft and compressor, screw expander access port is mounted with pressure-control valve by bypass pipe connection, compressor is provided with outlet side and suction end, compressor bypass connection is mounted with anti-surge motor-driven valve.The utility model generates power using overbottom pressure and directly pressurizes for the natural gas of natural gas transmission Trunk Line, it is convenient to omit dry gas seals system saves equipment cost and operating cost.
Description
Technical field
The utility model is related to natural gas field, especially a kind of distributed point defeated station natural gas compression system.
Background technology
At this stage, domestic high-pressure natural gas pipe network has tens thousand of kilometers at present, is responsible for from the northwestward to the central and east and conveys
The task of clean energy resource.Since long distance pipeline will produce certain pressure drop, each point defeated station also needs to supply to city gas on the way
Gas, thus high pressure pipe network can caused by above-mentioned reason the inevitable pressure loss.In order to relieve stress decline, ensure that end is used
Multiple compressor stations and underground natural gas storage tank can be generally arranged along the line in the supply gas pressure at family, the air input efficiency for improving pipe network, pipeline,
Ensure the displacement and peak modulation capacity of pipeline with this.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts, to reduce production and operating cost, to point defeated station
The overbottom pressure of generation is adequately utilized, and a kind of distributed point defeated station natural gas compression system is provided.This natural gas compression system
Can distributing installation in the natural gas Trunk Line on the way larger point defeated station of each displacement；The utility model uses to achieve the above object
Following technical scheme：
A kind of distribution point defeated station natural gas compression system, including control system, compressor, gear-box, screw expander,
Pressure-control valve, shaft, gearing shaft, connecting rod, outlet side, suction end, anti-surge motor-driven valve, the control system is for controlling
The intelligence of compressor, gear-box and screw expander, pressure-control valve, anti-surge motor-driven valve processed is run, in screw expander
The shaft of center installation and the gear drive axis connection of gear-box are installed, and the connecting rod of gear-box gear shaft and compressor connects
Installation, screw expander access port are mounted with that pressure-control valve, compressor are provided with outlet side and air-breathing by bypass pipe connection
End, compressor bypass connection are mounted with anti-surge motor-driven valve.
As further program of the utility model, control system adjusts screw expander by control pressure control valve and enters
The pressure difference at mouth end and outlet end, the rotating speed of compressor is controlled with this；Control system, which is additionally operable to detect and collect compressor, to be entered
Mouth and outlet pressure, temperature parameter, will be disengaged from normal operating zone, and lean on when control system determines compressor by operation
Compressor bypass anti-surge motor-driven valve is opened when nearly surge line, high-pressure side natural gas is made to be back to suction port of compressor end, increases pressure
Contracting flow prevents compressor from surge occurs.
As further program of the utility model, control system includes several sensors and middle control computer, and sensor is extremely
Less include pressure sensor, shock sensor, temperature sensor, speedometer, for detection device pressure, rotating speed, device temperature,
Thus vibration amplitude judges whether equipment operates steadily operation, and realize that automatic emergency is shut down after equipment breaks down, and leads to
It crosses the collection to parameter and calculates the monitoring and regulation realized to integral device operating status.
Further include installation pedestal as further program of the utility model, screw expander bottom end is bolted
In installation pedestal, the installation pedestal is by installation gasket and bradyseism groups of springs at being installed by bolt among two installation gaskets
Bradyseism spring.
As further program of the utility model, the screw expander is by Suction gas inlet, body, male rotor and cloudy turn
Son composition, Suction gas inlet are built in internal body upper end, and the male rotor and female rotor of internal body installation are to be threadedly coupled to install.
Compared with prior art, the utility model has the following advantages：A kind of distribution point defeated station natural gas compression system,
Utilize high pressure gas（Overbottom pressure）The rotation of power drive expanding machine is generated by worm screw expanding machine, power is transferred to tooth through transmission shaft
Roller box（Dynamic sealing system is used between gear-box and expanding machine）.By the way that power is transferred to compression after gear-box carries out speed change
Machine does work, and gear-box to compressor intermediate propeller shaft is equipped with dynamic sealing, and to increase main pipeline gas pressure, this practicality is new
Type generates power using overbottom pressure and directly pressurizes for the natural gas of natural gas transmission Trunk Line, it is convenient to omit dry gas seals system
System saves equipment cost and operating cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model distribution point defeated station natural gas compression system.
Fig. 2 is the structural schematic diagram of the utility model installation pedestal.
Fig. 3 is the structural schematic diagram of the utility model screw expander.
In figure：1, compressor, 2, gear-box, 3, screw expander, 4, pressure-control valve, 5, shaft, 6, installation pedestal,
7, gearing shaft, 8, connecting rod, 9, outlet side, 10, suction end, 11, anti-surge motor-driven valve, 12, installation gasket, 13, bradyseism bullet
Spring, 14, Suction gas inlet, 15, body, 16, male rotor, 17, female rotor.
Specific implementation mode
The utility model is further elaborated in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, Figure 2 and Figure 3, a kind of distributed point defeated station natural gas compression system, including control system, compressor
（1）, gear-box（2）, screw expander（3）, pressure-control valve（4）, shaft（5）, gearing shaft（7）, connecting rod（8）, outlet
End（9）, suction end（10）, anti-surge motor-driven valve（11）, the control system is for controlling compressor（1）, gear-box（2）And spiral shell
Bar expanding machine（3）, pressure-control valve（4）, anti-surge motor-driven valve（11）Intelligent operation, screw expander（3）Interior centre bit
Set the shaft of installation（5）With gear-box（2）Gearing shaft（7）Connection installation, gear-box（2）Gear shaft and compressor（1）
Connecting rod（8）Connection installation, screw expander（3）Access port is mounted with pressure-control valve by bypass pipe connection（4）, compressor
（1）Provided with outlet side（9）And suction end（10）, compressor（1）Bypass connection is mounted with anti-surge motor-driven valve（11）.
Control system passes through control pressure control valve（4）Adjusting screw rod expanding machine（3）The pressure difference of arrival end and outlet end,
Compressor is controlled with this（1）Rotating speed；Control system is additionally operable to detect and collect suction port of compressor and outlet pressure, temperature ginseng
Number will be disengaged from normal operating zone when control system determines compressor by operation, and open compression when close surge line
Machine bypasses anti-surge motor-driven valve, and high-pressure side natural gas is made to be back to suction port of compressor end, increases compression flow, prevents compressor from sending out
Raw surge.
Control system includes several sensors and middle control computer, sensor include at least shaft temperature sensor, pressure sensor,
Lubricating oil liquid level gauge, shock sensor, temperature sensor, speedometer etc., for detection device pressure, rotating speed, device temperature, vibrations
Thus amplitude judges whether equipment operates steadily operation, and realize that automatic emergency is shut down after equipment breaks down, by right
The monitoring and regulation to integral device operating status is realized in the collection and calculating of parameter.
It further include installation pedestal（6）, screw expander（3）Bottom end is bolted on installation pedestal（6）On, the peace
Fill pedestal（6）By installation gasket（12）With bradyseism spring（13）Composition, two installation gaskets（12）Centre is mounted with to delay by bolt
Shake spring（13）.
The screw expander（3）By Suction gas inlet（14）, body（15）, male rotor（16）And female rotor（17）Composition,
Suction gas inlet（14）It is built in body（15）Inner upper end, body（15）The male rotor of inside installation（16）And female rotor（17）For
It is threadedly coupled installation.
Utility model works principle：The compressor 1, gear-box, screw expander 3 of the utility model are high pressure-volume
Device can bear pressure identical with natural gas Trunk Line, and suction port of compressor end and the basic phase of screw expander inlet port pressure
Together, and in gear-box and screw expander arrival end it is equipped with equilibrated valve, therefore pressure is essentially identical in 3 equipment, therefore
It can meet demand using simple dynamic sealing；
Compressor 1 is self-operated type compressor, with low energy consumption：Only needing a small amount of electric power, system provides basis use in order to control
Electricity, compressor operating need not additionally consume electric power or combustion gas merely with differential pressure energy, considerably reduce and be pressurized for Trunk Line
Cost.
Seal request is low：Since its power transmission carries out all inside equipment, centrifugal compressor generator terminal and screw expander
Air inlet end pressure is almost the same, so can meet service requirement using only common dynamic sealing.
It is simple in structure：There is no numerous and jumbled ancillary equipment, to which its reliability and ease for use, operations staff be greatly improved
The application method of complete equipment can be grasped through simple training.
It saves the area：Since equipment is small and exquisite, mating pipe network is simple, so it is relatively small to occupy place area, only tens
Square metre it can accommodate equipment and mating pipe network.
It is convenient to come into operation：Since its structure is relatively easy, the production cycle is also corresponding shorter to installation period, 3-5 months
Complete production, installation and debugging efforts.
High pressure gas generates the rotation of power drive expanding machine by worm screw expanding machine, and power is transferred to gear through transmission shaft
Case（Dynamic sealing system is used between gear-box and expanding machine）；Gear-box is equipped with balanced valve with expanding machine, makes gear-box and screw rod
Expanding machine Suction gas inlet end pressure is equal；By the way that power is transferred to compressor work, gear-box after gear-box carries out speed change
It is equipped with dynamic sealing to compressor intermediate propeller shaft, to increase main pipeline gas pressure.
The above is the utility model preferred embodiment, for the ordinary skill in the art, according to this reality
With novel introduction, in the case where not departing from the principles of the present invention with spirit, the change that is carried out to embodiment is repaiied
Change, replace and modification is still fallen within the scope of protection of the utility model.
Claims (5)
1. a kind of distribution point defeated station natural gas compression system, which is characterized in that including control system, compressor（1）, gear-box
（2）, screw expander（3）, pressure-control valve（4）, shaft（5）, gearing shaft（7）, connecting rod（8）, outlet side（9）, air-breathing
End（10）, anti-surge motor-driven valve（11）, the control system is for controlling compressor（1）, gear-box（2）And screw expander
（3）, pressure-control valve（4）, anti-surge motor-driven valve（11）Intelligent operation, screw expander（3）Interior center installation
Shaft（5）With gear-box（2）Gearing shaft（7）Connection installation, gear-box（2）Gear shaft and compressor（1）Connecting rod（8）
Connection installation, screw expander（3）Access port is mounted with pressure-control valve by bypass pipe connection（4）, compressor（1）It is provided with
Outlet side（9）And suction end（10）, compressor（1）Bypass connection is mounted with anti-surge motor-driven valve（11）.
2. a kind of distributed point defeated station natural gas compression system according to claim 1, which is characterized in that control system is logical
Cross control pressure control valve（4）Adjusting screw rod expanding machine（3）The pressure difference of arrival end and outlet end controls compressor with this
（1）Rotating speed；Control system is additionally operable to detect and collect suction port of compressor and outlet pressure, temperature parameter, when control system is logical
It crosses operation and determines compressor and will be disengaged from normal operating zone, and close to surge line when, to open compressor bypass anti-surge electronic
Valve makes high-pressure side natural gas be back to suction port of compressor end, increases compression flow, prevents compressor from surge occurs.
3. a kind of distributed point defeated station natural gas compression system according to claim 1 or 2, which is characterized in that control system
System includes several sensors and middle control computer, and sensor includes at least pressure sensor, shock sensor, temperature sensor, speed
Thus degree meter judges whether equipment operates steadily operation for detection device pressure, rotating speed, device temperature, vibration amplitude, and
And realize that automatic emergency is shut down after equipment breaks down, it is realized by collection to parameter and calculating and shape is run to integral device
The monitoring and regulation of state.
4. a kind of distributed point defeated station natural gas compression system according to claim 1, which is characterized in that further include installation
Pedestal（6）, screw expander（3）Bottom end is bolted on installation pedestal（6）On, the installation pedestal（6）It is padded by installation
Piece（12）With bradyseism spring（13）Composition, two installation gaskets（12）Centre is mounted with bradyseism spring by bolt（13）.
5. a kind of distributed point defeated station natural gas compression system according to claim 1, which is characterized in that the screw rod is swollen
Swollen machine（3）By Suction gas inlet（14）, body（15）, male rotor（16）And female rotor（17）Composition, Suction gas inlet（14）It is built in
Body（15）Inner upper end, body（15）The male rotor of inside installation（16）And female rotor（17）It is installed to be threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820241048.5U CN207865040U (en) | 2018-02-11 | 2018-02-11 | A kind of distribution point defeated station natural gas compression system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820241048.5U CN207865040U (en) | 2018-02-11 | 2018-02-11 | A kind of distribution point defeated station natural gas compression system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207865040U true CN207865040U (en) | 2018-09-14 |
Family
ID=63457200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820241048.5U Expired - Fee Related CN207865040U (en) | 2018-02-11 | 2018-02-11 | A kind of distribution point defeated station natural gas compression system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207865040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332055A (en) * | 2018-02-11 | 2018-07-27 | 曹京良 | A kind of distribution point defeated station natural gas compression system |
-
2018
- 2018-02-11 CN CN201820241048.5U patent/CN207865040U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332055A (en) * | 2018-02-11 | 2018-07-27 | 曹京良 | A kind of distribution point defeated station natural gas compression system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20190211 |