CN109210376A - A kind of gas pipeline hot standby regulator online - Google Patents
A kind of gas pipeline hot standby regulator online Download PDFInfo
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- CN109210376A CN109210376A CN201811303108.2A CN201811303108A CN109210376A CN 109210376 A CN109210376 A CN 109210376A CN 201811303108 A CN201811303108 A CN 201811303108A CN 109210376 A CN109210376 A CN 109210376A
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- Prior art keywords
- pressure
- ball valve
- valve
- blow
- down pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a kind of gas pipeline hot standby regulators online, it include: with pressure regulation tap line and spare pressure regulation tap line, to be connected with a technique ball valve, process bands executing agency ball valve, monitoring pressure-regulating valve, operating pressure regulating valve, on the spot thermometer, pressure transmitter, two pressure transmitters, check-valves and another technique ball valve in turn respectively thereon；Two voltage regulator controllers respectively include two pressure controllers and the high relay of a pressure.Beneficial effects of the present invention: voltage-regulating system is realized in the on-line automatic completion in entire handoff procedure, smooth transition, high reliablity with road/spare road.It is set in addition, outdoor sledge installing may be implemented in the device, saves space occupied.Pipe-line construction is set to more tend to standardization, modularization, hommization, reduce working procedure, facilitate operation and maintenance, reduce equipment investment and operating expenses.
Description
Technical field
The present invention relates to gas pipeline technical field, in particular to a kind of gas pipeline hot standby regulator online.
Background technique
Voltage-regulating system is one of the critical facility of gas pipeline point defeated station field.To guarantee that gas continuous and stable transports to downstream,
The design of voltage-regulating system is most important.The voltage-regulating system mainly used in the past, for cold standby, is adjusted with road and spare road switch mode
Pressure system mainly include front and back converge tracheae, process upstream switching ball, urgent block valve, pressure regulator valve (including monitoring pressure adjust
Valve and operating pressure regulating valve), downstream process ball valve, pressure controller.With road and spare road urgent block valve and pressure regulation
Valve (monitoring pressure-regulating valve+operating pressure regulating valve) process set value is all the same.When with the voltage-regulating system failure on road, therefore
Hinder signal to upload, spare road is switched to by process upstream switching ball.
There are the following problems for the voltage-regulating system of this cold standby mode: (one) and the not all system failure can be with signal shapes
Formula uploads, and when the system failure can not upload, back-up system can not come into operation in time, and the safety for causing entire voltage-regulating system is hidden
Suffer from；(2) two-way voltage-regulating system is cold standby, when needing to switch with/spare road voltage-regulating system, passes through process upstream switch valve
Switch with/spare road, at this moment regulating valve vigorous motion, pressure can not relatively smooth transition, or even surpass after having valve
The risk of pressure；(3) cold standby voltage-regulating system relies on simple logic judgment, has corresponding monitoring and protection to downstream pressure superpressure,
It is even truncated when necessary and is being switched to spare road with road voltage-regulating system, but for the blocking of road voltage-regulating system or the too low work of flow
Condition, without the respective logic for detecting and protecting automatically.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of gas pipeline hot standby regulator online, it can root
The on-line automatic switching on the road of pressure regulation is realized according to demand, is improved continuity, stability and the reliability of detection and control, is facilitated fortune
Row maintenance.
The present invention provides a kind of gas pipeline hot standby regulators online, comprising:
With pressure regulation tap line, both ends are connect with the first header and the second header respectively, described with pressure regulation branch
The first technique ball valve, the first process bands executing agency ball valve, the first monitoring pressure-regulating valve, first dynamic has been sequentially connected in series on pipeline
Make pressure-regulating valve, first thermometer, first pressure transmitter, second pressure transmitter, third pressure transmitter, first on the spot
Check-valves and the second technique ball valve；
First voltage regulator controllers comprising connect with the first monitoring pressure-regulating valve and the first pressure transmitter
First pressure controller, the second pressure control that is connect with the first operating pressure regulating valve and the second pressure transmitter
Device processed and the first pressure Gao Gaoji being connect with first process bands executing agency's ball valve and the third pressure transmitter
Electric appliance；
Spare pressure regulation tap line, both ends are connect with first header and second header respectively, described spare
The 7th technique ball valve, the second process bands executing agency ball valve, the second monitoring pressure has been sequentially connected in series in pressure regulation tap line to adjust
Thermometer, the 4th pressure transmitter, the 5th pressure transmitter, the 6th pressure become on the spot for valve, the second operating pressure regulating valve, second
Send device, second check-valve and the 8th technique ball valve；
Second voltage regulator controllers comprising connect with the second monitoring pressure-regulating valve and the 4th pressure transmitter
Third pressure controller, the 4th pressure control that is connect with the second operating pressure regulating valve and the 5th pressure transmitter
Device processed and the second pressure Gao Gaoji being connect with second process bands executing agency's ball valve and the 6th pressure transmitter
Electric appliance；
Wherein, first header is connect with first process pipelines one end, the first process pipelines other end and first
Flanged joint, second header are connect with second process pipelines one end, the second process pipelines other end and second flange
Connection.
As further improvement of the invention, the pressure set points of the second pressure controller are SP, first pressure
The pressure set points of force controller are SP+ △ P1, and the pressure set points of the high relay of the first pressure are SP+ △ P2, institute
The pressure set points for stating the 4th pressure controller are SP- △ P1, and the pressure set points of the third pressure controller are SP+ △
P1, the pressure set points of the high relay of the second pressure are SP+ △ P2；
Wherein, SP+ △ P2 is greater than SP+ △ P1, SP+ △ P1 and is greater than SP, and SP is greater than SP- △ P1.
As further improvement of the invention, the first technique ball valve is stated equipped with the first by-pass line, first bypass
Pipeline one end be connected between first header and the first technique ball valve in pressure regulation tap line, described first
The by-pass line other end be connected between the first technique ball valve and first process bands executing agency ball valve with tune
It presses in tap line；
The 7th technique ball valve is equipped with the second by-pass line, and second by-pass line one end is connected to described first
In spare pressure regulation tap line between header and the 7th technique ball valve, the second by-pass line other end is connected to institute
It states in the spare pressure regulation tap line between the 7th technique ball valve and second process bands executing agency ball valve.
It is improved as of the invention further, along natural gas flow to being sequentially connected in series third technique on first by-pass line
Ball valve and the first shut-off valve；
Along natural gas flow to being sequentially connected in series the 9th technique ball valve and the 5th shut-off valve on second by-pass line.
As further improvement of the invention, further includes:
First blow-down pipe, one end are connected to the first technique ball valve and first process bands executing agency ball valve
Between in pressure regulation tap line, the first blow-down pipe other end passes through third flange and yard blowdown system phase
Even；
4th blow-down pipe, one end are connected between the 7th technique ball valve and the second process bands executing agency ball valve
Spare pressure regulation tap line on, the 4th blow-down pipe other end is connected by the 6th flange with yard blowdown system.
It is improved as of the invention further, along natural gas flow to being sequentially connected in series the 4th technique on first blow-down pipe
Ball valve and the second shut-off valve；
Along natural gas flow to being sequentially connected in series the tenth technique ball valve and the 6th shut-off valve on 4th blow-down pipe.
As further improvement of the invention, further includes:
Second blow-down pipe, one end are connected to first process bands executing agency's ball valve and the first monitoring pressure
Between regulating valve in pressure regulation tap line, the second blow-down pipe other end is by the 4th flange and yard emptying
System is connected；
5th blow-down pipe, one end are connected to second process bands executing agency's ball valve and the second monitoring pressure
In spare pressure regulation tap line between regulating valve, the 5th blow-down pipe other end is by the 7th flange and yard emptying
System is connected.
It is improved as of the invention further, along natural gas flow to being sequentially connected in series the 5th technique on second blow-down pipe
Ball valve and third shut-off valve；
Along natural gas flow to being sequentially connected in series the 11st technique ball valve and the 7th shut-off valve on 5th blow-down pipe.
As further improvement of the invention, further includes:
Third blow-down pipe, one end be connected between the third pressure transmitter and the first check-valve with
In pressure regulation tap line, the third blow-down pipe other end is connected by the 5th flange with yard blowdown system；
6th blow-down pipe, one end connect the spare pressure regulation bypass duct between the 6th pressure transmitter and second check-valve
On line, the 6th blow-down pipe other end is connected by eight treating observances orchid with yard blowdown system.
It is improved as of the invention further, along natural gas flow to being sequentially connected in series the 6th technique on the third blow-down pipe
Ball valve and the 4th shut-off valve；
Along natural gas flow to being sequentially connected in series the 12nd technique ball valve and the 8th shut-off valve on 6th blow-down pipe.
The invention has the benefit that
The arrangement achieves voltage-regulating systems in the on-line automatic completion in entire handoff procedure, steady mistake with road/spare road
It crosses, high reliablity.It is set in addition, outdoor sledge installing may be implemented in the device, saves space occupied.Pipe-line construction is set to more tend to mark
Standardization, hommization, reduces working procedure, facilitates operation and maintenance, reduces equipment investment and operating expenses modularization.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the hot standby regulator online of gas pipeline described in the embodiment of the present invention.
In figure,
1, first flange；2, the first process pipelines；3, pipe cap；4, the first header；5-1, with pressure regulation tap line；5-2,
First technique ball valve；5-3, the first process bands executing agency ball valve；5-4, the first monitoring pressure-regulating valve；5-5, the first movement pressure
Force regulating valve；5-6, first check-valve；5-7, the second technique ball valve；5-8, third technique ball valve；5-9, the first shut-off valve；5-
10, the first by-pass line；5-11, the first blow-down pipe；5-12, the 4th technique ball valve；5-13, the second shut-off valve；5-14, third
Flange；5-15, the second blow-down pipe；5-16, the 5th technique ball valve；5-17, third shut-off valve；5-18, the 4th flange；5-19,
Third blow-down pipe；5-20, the 6th technique ball valve；5-21, the 4th shut-off valve；5-22, the 5th flange；5-23, first are with regard to ground temperature
Spend table；5-24, first pressure transmitter；5-25, second pressure transmitter；5-26, third pressure transmitter；5-27, the first pressure
Force controller；5-28, second pressure controller；The high relay of 5-29, first pressure；5-30, first instrument cable；5-31,
Second instrument cable；5-32, third instrument cable；5-33, the 4th instrument cable；5-34, the 5th instrument cable；5-35, the 6th
Instrument cable；6-1, spare pressure regulation tap line；6-2, the 7th technique ball valve；6-3, the second process bands executing agency ball valve；6-
4, the second monitoring pressure-regulating valve；6-5, the second operating pressure regulating valve；6-6, second check-valve；6-7, the 8th technique ball valve；
6-8, the 9th technique ball valve；6-9, the 5th shut-off valve；6-10, the second by-pass line；6-11, the 4th blow-down pipe；6-12, the tenth
Technique ball valve；6-13, the 6th shut-off valve；6-14, the 6th flange；6-15, the 5th blow-down pipe；6-16, the 11st technique ball valve；
6-17, the 7th shut-off valve；6-18, the 7th flange；6-19, the 6th blow-down pipe；6-20, the 12nd technique ball valve；6-21, the 8th
Shut-off valve；6-22, eight treating observances are blue；The thermometer on the spot of 6-23, second；6-24, the 4th pressure transmitter；6-25, the 5th pressure become
Send device；6-26, the 6th pressure transmitter；6-27, third pressure controller；6-28, the 4th pressure controller；6-29, the second pressure
Li Gaogao relay；6-30, the 7th instrument cable；6-31, the 8th instrument cable；6-32, the 9th instrument cable；6-33, the tenth
Instrument cable；6-34, the 11st instrument cable；6-35, the 12nd instrument cable；7, the second header；8, the second process pipelines；9,
Second flange.
Specific embodiment
The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.
As shown in Figure 1, a kind of gas pipeline of the embodiment of the present invention hot standby regulator online, comprising: first flange 1,
The hot standby pressure control online of second flange 9, the first process pipelines 2, the second process pipelines 8, the first header 4, the second header 7, two-way
Device processed (with online hot standby pressure control device and spare online hot standby pressure control device).
Wherein it is included in all the way with online hot standby pressure control device with pressure regulation tap line 5-1 and the first Regulation Control
Device.It is connect respectively with the first header 4 and the second header 7 with the both ends pressure regulation tap line 5-1, with pressure regulation tap line 5-1
On be sequentially connected in series the first technique ball valve 5-2, the first process bands executing agency ball valve 5-3, first monitoring pressure-regulating valve 5-4,
First operating pressure regulating valve 5-5, first thermometer 5-23, first pressure transmitter 5-24, second pressure transmitter 5- on the spot
25, third pressure transmitter 5-26, first check-valve 5-6 and the second technique ball valve 5-7.First voltage regulator controllers include and first
Monitor the first pressure controller 5-27 and the first operating pressure of pressure-regulating valve 5-4 and the 5-24 connection of first pressure transmitter
The second pressure controller 5-28 of regulating valve 5-5 and the 5-25 connection of second pressure transmitter and machine is executed with the first process bands
The high relay 5-29 of the first pressure that structure ball valve 5-3 is connected with third pressure transmitter 5-26.
In addition spare online hot standby pressure control device includes spare pressure regulation tap line 6-1 and the second Regulation Control all the way
Device.The spare both ends pressure regulation tap line 6-1 are connect with the first header 4 and the second header 7 respectively, spare pressure regulation tap line 6-1
On be sequentially connected in series the 7th technique ball valve 6-2, the second process bands executing agency ball valve 6-3, second monitoring pressure-regulating valve 6-4,
Second operating pressure regulating valve 6-5, second thermometer 6-23, the 4th pressure transmitter 6-24, the 5th pressure transmitter 6- on the spot
25, the 6th pressure transmitter 6-26, second check-valve 6-6 and the 8th technique ball valve 6-7.Second voltage regulator controllers include and second
Monitor the third pressure controller 6-27 and the second operating pressure of pressure-regulating valve 6-4 and the 4th pressure transmitter 6-24 connection
4th pressure controller 6-28 of regulating valve 6-5 and the 5th pressure transmitter 6-25 connection and machine is executed with the second process bands
The high relay 6-29 of second pressure of structure ball valve 6-3 and the 6th pressure transmitter 6-26 connection.
Wherein, the first header 4 is connect with 2 one end of the first process pipelines, 2 other end of the first process pipelines and first flange 1
Connection, the second header 7 are connect with 8 one end of the second process pipelines, and 8 other end of the second process pipelines is connect with second flange 9.First
The both ends of header 4 and the second header 7 are all connected with pipe cap 3.
Further, the first technique ball valve 5-2 is equipped with the first by-pass line 5-10, and first one end by-pass line 5-10 connects
Connect between the first header 4 and the first technique ball valve 5-2 on pressure regulation tap line 5-1, the first by-pass line 5-10 is another
One end be connected between the first technique ball valve 5-2 and the first process bands executing agency ball valve 5-3 with pressure regulation tap line 5-1
On.Along natural gas flow to being sequentially connected in series third technique ball valve 5-8 and the first shut-off valve 5-9 on first by-pass line 5-10.
Further, further includes: for being vented in the first blow-down pipe 5- with natural gas on pressure regulation tap line 5-1
11, the second blow-down pipe 5-15 and third blow-down pipe 5-19.First one end blow-down pipe 5-11 is connected to the first technique ball valve
Between 5-2 and the first process bands executing agency ball valve 5-3 on pressure regulation tap line 5-1, the first blow-down pipe 5-11 is another
One end is connected by third flange 5-14 with yard blowdown system.Along natural gas flow to being sequentially connected in series on first blow-down pipe 5-11
4th technique ball valve 5-12 and the second shut-off valve 5-13.Second one end blow-down pipe 5-15 is connected to the first process bands executing agency
Ball valve 5-3 and first monitoring pressure-regulating valve 5-4 between on pressure regulation tap line 5-1, the second blow-down pipe 5-15 is another
One end is connected by the 4th flange 5-18 with yard blowdown system.Along natural gas flow to being sequentially connected in series on second blow-down pipe 5-15
5th technique ball valve 5-16 and third shut-off valve 5-17.The one end third blow-down pipe 5-19 is connected to third pressure transmitter 5-26
Between first check-valve 5-6 on pressure regulation tap line 5-1, the third blow-down pipe 5-19 other end passes through the 5th flange
5-22 is connected with yard blowdown system.Along natural gas flow to being sequentially connected in series the 6th technique ball valve 5-20 on third blow-down pipe 5-19
With the 4th shut-off valve 5-21.
Further, the 7th technique ball valve 6-2 is equipped with the second by-pass line 6-10, and second one end by-pass line 6-10 connects
It connects on the spare pressure regulation tap line 6-1 between the first header 4 and the 7th technique ball valve 6-2, the second by-pass line 6-10 is another
One end is connected to the spare pressure regulation tap line 6-1 between the 7th technique ball valve 6-2 and the second process bands executing agency ball valve 6-3
On.Along natural gas flow to being sequentially connected in series the 9th technique ball valve 6-8 and the 5th shut-off valve 6-9 on second by-pass line 6-10.
Further, further include the 4th blow-down pipe 6- for being vented natural gas on spare pressure regulation tap line 6-1
11, the 5th blow-down pipe 6-15 and the 6th blow-down pipe 6-19.4th one end blow-down pipe 6-11 is connected to the 7th technique ball valve
On spare pressure regulation tap line 6-1 between 6-2 and the second process bands executing agency ball valve 6-3, the 4th blow-down pipe 6-11 is another
One end is connected by the 6th flange 6-14 with yard blowdown system.Along natural gas flow to being sequentially connected in series on 4th blow-down pipe 6-11
Tenth technique ball valve 6-12 and the 6th shut-off valve 6-13.5th one end blow-down pipe 6-15 is connected to the second process bands executing agency
On spare pressure regulation tap line 6-1 between the monitoring of ball valve 6-3 and second pressure-regulating valve 6-4, the 5th blow-down pipe 6-15 is another
One end is connected by the 7th flange 6-18 with yard blowdown system.Along natural gas flow to being sequentially connected in series on 5th blow-down pipe 6-15
11st technique ball valve 6-16 and the 7th shut-off valve 6-17.6th one end blow-down pipe 6-19 connects the 6th pressure transmitter 6-26
On spare pressure regulation tap line 6-1 between second check-valve 6-6, the 6th blow-down pipe 6-19 other end is blue by eight treating observances
6-22 is connected with yard blowdown system.Along natural gas flow to being sequentially connected in series the 12nd technique ball valve 6- on 6th blow-down pipe 6-19
20 and the 8th shut-off valve 6-21.
First pressure transmitter 5-24 is connect by first instrument cable 5-30 with first pressure controller 5-27, the first prison
Pressure control force regulating valve 5-4 is connect by the 4th instrument cable 5-33 with first pressure controller 5-27, second pressure transmitter 5-
25 are connect by second instrument cable 5-31 with second pressure controller 5-28, and the first operating pressure regulating valve 5-5 passes through the 5th
Instrument cable 5-34 is connect with second pressure controller 5-28, third pressure transmitter 5-26 by third instrument cable 5-32 with
The high relay 5-29 connection of first pressure, the first process bands executing agency ball valve 5-3 pass through the 6th instrument cable 5-35 and the
The high relay 5-29 connection of one pressure.4th pressure transmitter 6-24 is controlled by the 7th instrument cable 6-30 and third pressure
Device 6-27 connection, the second monitoring pressure-regulating valve 6-4 are connect by the tenth instrument cable 6-33 with third pressure controller 6-27,
5th pressure transmitter 6-25 is connect by the 8th instrument cable 6-31 with the 4th pressure controller 6-28, the second operating pressure tune
Section valve 6-5 is connect by the 11st instrument cable 6-34 with the 4th pressure controller 6-28, and the 6th pressure transmitter 6-26 passes through
9th instrument cable 6-32 is connect with the high relay 6-29 of second pressure, and the second process bands executing agency ball valve 6-3 passes through the
12 instrument cable 6-35 are connect with the high relay 6-29 of second pressure.
Wherein, the first process bands executing agency ball valve 5-3 and the second process bands executing agency ball valve 6-3 is that full-bore is double
Guan Shuan lets out valve, and failure is closed；First monitoring pressure-regulating valve 5-4 and the second monitoring pressure-regulating valve 6-4 is that failure is closed；First
Operating pressure regulating valve 5-5 and the second operating pressure regulating valve 6-5 is that failure is opened.
With the third pressure transmitter 5-26 on pressure regulation tap line 5-1 downstream and spare pressure regulation tap line 6-1
On the downstream of the 6th pressure transmitter 6-26 be respectively provided with first check-valve 5-6 and second check-valve 6-6, prevent with tune
The pressure anti-channeling for pressing tap line 5-1 and spare pressure regulation tap line 6-1 guarantees with pressure regulation tap line 5-1 and spare tune
It presses the pressure of tap line 6-1 acquisition respectively independent, avoids downstream pressure superelevation while triggering in all pressure regulation tap lines
Technique block valve.All shut-off valves of the invention are all made of axial flow type check valve.
When specifically used, the pressure set points of second pressure controller 5-28 are SP, first pressure controller 5-27's
Pressure set points are SP+ △ P1, and the pressure set points of the high relay 5-29 of first pressure are SP+ △ P2, the control of the 4th pressure
The pressure set points of device 6-28 are SP- △ P1, and the pressure set points of third pressure controller 6-27 are SP+ △ P1, second pressure
The pressure set points of high relay 6-29 are SP+ △ P2；Wherein, SP+ △ P2 is greater than SP+ △ P1, SP+ △ P1 and is greater than SP, SP
Greater than SP- △ P1.In general, △ P1=0.05MPa, △ P2=0.1MPa.By dynamic with first on pressure regulation tap line 5-1
The pressure set points for making the second operating pressure regulating valve 6-5 on pressure-regulating valve 5-5 and spare pressure regulation tap line 6-1 are different
Sample is realized in the on-line automatic switching with pressure regulation tap line 5-1 and spare pressure regulation tap line 6-1, is not necessarily to manual intervention.
Hot standby regulator sledge fills outdoor design to gas pipeline of the invention online, degree of protection IP65, explosion-proof etc.
Grade is EXdIIBT4, fully meets open-air atmosphere and live requirement of explosion proof；Standard flange is used between the device and process pipeline
Connection, and it is suitable for the operating condition of high pressure.Every road pressure regulation branch pressure transmitter downstream setting check-valves is to realize a whole set of adjust
The online hot standby necessary condition of pressure device.The device is by being respectively provided with non-return in every road pressure regulation branch pressure transmitter downstream
Valve avoids downstream pressure superelevation while triggering is all so that the pressure of every road pressure regulation branch pressure transmitter acquisition is relatively independent
The technique block valve of pressure regulation branch.The device passes through with pressure regulation branch/spare pressure regulation branch operating pressure regulating valve simultaneously
The difference of process set value, to reach when being failed with road voltage-regulating system, spare road voltage-regulating system automatically engages use.Entirely cut
Process is changed, manual intervention, on-line automatic completion, smooth transition, high reliablity are not necessarily to.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of gas pipeline hot standby regulator online characterized by comprising
With pressure regulation tap line (5-1), both ends are connect with the first header (4) and the second header (7) respectively, described with tune
The first technique ball valve (5-2), the first process bands executing agency ball valve (5-3), first have been sequentially connected in series in pressure tap line (5-1)
Monitor pressure-regulating valve (5-4), the first operating pressure regulating valve (5-5), first thermometer (5-23), first pressure pick-up on the spot
Device (5-24), second pressure transmitter (5-25), third pressure transmitter (5-26), first check-valve (5-6) and the second technique
Ball valve (5-7)；
First voltage regulator controllers comprising with first monitoring pressure-regulating valve (5-4) and the first pressure transmitter (5-
24) the first pressure controller (5-27) and the first operating pressure regulating valve (5-5) and the second pressure pick-up connected
Device (5-25) connection second pressure controller (5-28) and with first process bands executing agency ball valve (5-3) and institute
State the high relay (5-29) of first pressure of third pressure transmitter (5-26) connection；
Spare pressure regulation tap line (6-1), both ends are connect with first header (4) and second header (7) respectively, institute
It states and has been sequentially connected in series the 7th technique ball valve (6-2), the second process bands executing agency ball valve on spare pressure regulation tap line (6-1)
(6-3), the second monitoring pressure-regulating valve (6-4), the second operating pressure regulating valve (6-5), second thermometer (6-23), the on the spot
Four pressure transmitters (6-24), the 5th pressure transmitter (6-25), the 6th pressure transmitter (6-26), second check-valve (6-6)
With the 8th technique ball valve (6-7)；
Second voltage regulator controllers comprising with second monitoring pressure-regulating valve (6-4) and the 4th pressure transmitter (6-
24) the third pressure controller (6-27) and the second operating pressure regulating valve (6-5) and the 5th pressure inverting connected
Device (6-25) connection the 4th pressure controller (6-28) and with second process bands executing agency ball valve (6-3) and institute
State the high relay (6-29) of second pressure of the 6th pressure transmitter (6-26) connection；
Wherein, first header (4) connect with the first process pipelines (2) one end, the first process pipelines (2) other end with
First flange (1) connection, second header (7) connect with the second process pipelines (8) one end, second process pipelines (8)
The other end is connect with second flange (9).
2. gas pipeline according to claim 1 hot standby regulator online, which is characterized in that the second pressure control
The pressure set points of device (5-28) are SP, and the pressure set points of the first pressure controller (5-27) are SP+ △ P1, described the
The pressure set points of the high relay (5-29) of one pressure are SP+ △ P2, and the pressure of the 4th pressure controller (6-28) is set
Definite value is SP- △ P1, and the pressure set points of the third pressure controller (6-27) are SP+ △ P1, and the second pressure is high
The pressure set points of relay (6-29) are SP+ △ P2；
Wherein, SP+ △ P2 is greater than SP+ △ P1, SP+ △ P1 and is greater than SP, and SP is greater than SP- △ P1.
3. gas pipeline according to claim 1 hot standby regulator online, which is characterized in that the first technique ball valve
(5-2) is equipped with the first by-pass line (5-10), and described first by-pass line (5-10) one end is connected to first header (4)
Between the first technique ball valve (5-2) on pressure regulation tap line (5-1), first by-pass line (5-10) is another
One end be connected between the first technique ball valve (5-2) and first process bands executing agency ball valve (5-3) with tune
It presses on tap line (5-1)；
The 7th technique ball valve (6-2) is equipped with the second by-pass line (6-10), described second by-pass line (6-10) one end
It is connected on the spare pressure regulation tap line (6-1) between first header (4) and the 7th technique ball valve (6-2), institute
It states the second by-pass line (6-10) other end and is connected to the 7th technique ball valve (6-2) and second process bands executing agency
On spare pressure regulation tap line (6-1) between ball valve (6-3).
4. gas pipeline according to claim 3 hot standby regulator online, which is characterized in that first by-pass line
Along natural gas flow to being sequentially connected in series third technique ball valve (5-8) and the first shut-off valve (5-9) on (5-10)；
Along natural gas flow to being sequentially connected in series the 9th technique ball valve (6-8) and the 5th shut-off valve on second by-pass line (6-10)
(6-9)。
5. gas pipeline according to claim 1 hot standby regulator online, which is characterized in that further include:
First blow-down pipe (5-11), one end is connected to the first technique ball valve (5-2) and first process bands execute
Between mechanism ball valve (5-3) on pressure regulation tap line (5-1), the first blow-down pipe (5-11) other end passes through the
Three flanges (5-14) are connected with yard blowdown system；
4th blow-down pipe (6-11), one end are connected to the 7th technique ball valve (6-2) and the second process bands executing agency
On spare pressure regulation tap line (6-1) between ball valve (6-3), the 4th blow-down pipe (6-11) other end passes through the 6th method
Blue (6-14) is connected with yard blowdown system.
6. gas pipeline according to claim 5 hot standby regulator online, which is characterized in that first blow-down pipe
Along natural gas flow to being sequentially connected in series the 4th technique ball valve (5-12) and the second shut-off valve (5-13) on (5-11)；
End along natural gas flow to the tenth technique ball valve (6-12) and the 6th is sequentially connected in series on 4th blow-down pipe (6-11)
Valve (6-13).
7. gas pipeline according to claim 1 hot standby regulator online, which is characterized in that further include:
Second blow-down pipe (5-15), one end are connected to first process bands executing agency ball valve (5-3) and described first
Monitor between pressure-regulating valve (5-4) on pressure regulation tap line (5-1), the second blow-down pipe (5-15) other end
It is connected by the 4th flange (5-18) with yard blowdown system；
5th blow-down pipe (6-15), one end are connected to second process bands executing agency ball valve (6-3) and described second
It monitors on the spare pressure regulation tap line (6-1) between pressure-regulating valve (6-4), the 5th blow-down pipe (6-15) other end
It is connected by the 7th flange (6-18) with yard blowdown system.
8. gas pipeline according to claim 7 hot standby regulator online, which is characterized in that second blow-down pipe
Along natural gas flow to being sequentially connected in series the 5th technique ball valve (5-16) and third shut-off valve (5-17) on (5-15)；
Along natural gas flow to being sequentially connected in series the 11st technique ball valve (6-16) and the 7th section on 5th blow-down pipe (6-15)
Only valve (6-17).
9. gas pipeline according to claim 1 hot standby regulator online, which is characterized in that further include:
Third blow-down pipe (5-19), one end are connected to the third pressure transmitter (5-26) and the first check-valve
Between (5-6) on pressure regulation tap line (5-1), third blow-down pipe (5-19) other end passes through the 5th flange
(5-22) is connected with yard blowdown system；
6th blow-down pipe (6-19), one end connect between the 6th pressure transmitter (6-26) and second check-valve (6-6)
On spare pressure regulation tap line (6-1), the 6th blow-down pipe (6-19) other end passes through eight treating observances blue (6-22) and yard
Blowdown system is connected.
10. gas pipeline according to claim 9 hot standby regulator online, which is characterized in that the third blow-down pipe
Along natural gas flow to being sequentially connected in series the 6th technique ball valve (5-20) and the 4th shut-off valve (5-21) on line (5-19)；
Along natural gas flow to being sequentially connected in series the 12nd technique ball valve (6-20) and the 8th section on 6th blow-down pipe (6-19)
Only valve (6-21).
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| CN201811303108.2A CN109210376B (en) | 2018-11-02 | 2018-11-02 | Online hot standby pressure regulating device of gas pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303108.2A CN109210376B (en) | 2018-11-02 | 2018-11-02 | Online hot standby pressure regulating device of gas pipeline |
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| CN109210376B CN109210376B (en) | 2023-05-16 |
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| CN209213462U (en) * | 2018-11-02 | 2019-08-06 | 中国石油天然气集团有限公司 | A kind of gas pipeline hot standby regulator online |
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2018
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| US20020007854A1 (en) * | 1999-06-29 | 2002-01-24 | Dilger John P. | Self-centering magnet assembly for use in a linear travel measurement device |
| JP2003042397A (en) * | 2001-07-26 | 2003-02-13 | Tsukishima Kikai Co Ltd | Gas usage method and device |
| CN203533212U (en) * | 2013-09-02 | 2014-04-09 | 合肥巨网工业气体有限公司 | Double-way pressure regulating device of central gas supply system |
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|---|---|
| CN109210376B (en) | 2023-05-16 |
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Address after: 100120 Xicheng District six paw Kang in Beijing City Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: China Petroleum Pipeline Engineering Co.,Ltd. Applicant after: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100120 Xicheng District six paw Kang in Beijing City Applicant before: China National Petroleum Corp. Applicant before: China Petroleum Pipeline Engineering Co.,Ltd. Applicant before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
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Effective date of registration: 20230406 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: China Petroleum Pipeline Engineering Co.,Ltd. Applicant after: CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100120 Xicheng District six paw Kang in Beijing City Applicant before: CHINA NATIONAL PETROLEUM Corp. Applicant before: China Petroleum Pipeline Engineering Co.,Ltd. Applicant before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
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