CN206973268U - A kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function - Google Patents
A kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function Download PDFInfo
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- CN206973268U CN206973268U CN201720050051.4U CN201720050051U CN206973268U CN 206973268 U CN206973268 U CN 206973268U CN 201720050051 U CN201720050051 U CN 201720050051U CN 206973268 U CN206973268 U CN 206973268U
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Abstract
The utility model provides a kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function; gas-liquid separator and a plurality of pipeline including skid, in skid, a plurality of pipeline include air inlet pipeline, decompression pipeline, the first output branch road, the second output branch road and emptying main pipe rail.The first blowdown piping is provided between urgent block valve and the first pressure regulator valve, when circuit superpressure, emergency blow-down is carried out by the first safety valve；The second blowdown piping is provided between the first gate valve and gas-liquid separator, when circuit superpressure, emergency blow-down is carried out by the second safety valve；Emptying manually is provided with before downstream gas port is entered, when circuit superpressure, gate valve is opened and stop valve is vented.
Description
Technical field
The utility model belongs to natural gas pressure regulating technical field, and in particular to a kind of day with multilevel security defencive function
Right controlled atmosphere pressure skid-mounted unit.
Background technology
Production natural gas mainly has heating furnace, gas electricity generator and released flare in natural gas station at present, life
Mainly there are kitchen and heating etc. in station with natural gas.
Yard natural gas comes from treatment plant, and pressure is higher, it is necessary to be supplied to each gas point after pressure regulation.Fuel gas comes gas and tune
Need to set safety guard after pressure, avoid hypertonia caused by pipeline blocking or pressure regulating valve fail.
Utility model content
The purpose of this utility model is to provide a kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function, enters
The pressure regulation and metering of row natural gas, avoid hypertonia caused by pipeline blocking or pressure regulating valve fail.
To achieve these goals, the technical scheme that the utility model is provided is as follows：
A kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function, including skid, the gas in skid
Liquid/gas separator and a plurality of pipeline, a plurality of pipeline include air inlet pipeline, decompression pipeline, the first output branch road, the second output branch
Road and emptying main pipe rail；
Described decompression pipeline one end is connected with air inlet pipeline, and the other end is connected with gas-liquid separator, the first output branch
Road and the second output branch road connect with the gas outlet of gas-liquid separator, and the air inlet pipeline includes urgent block valve, the drop
Pressure pipe road includes the first ball valve, the first pressure regulator valve and the first gate valve set gradually along gas flow direction, first output
Include stop valve, the ball valve set gradually along gas flow direction on branch road and the second output branch road；
It is described that the first blowdown piping, first gate valve and gas-liquid separator are promptly provided between block valve and the first ball valve
Between be provided with the second blowdown piping, the first of second ball valve and the first output branch road is put between gas delivery outlet provided with the 3rd
The second of blank pipe road, the 3rd ball valve and the second output branch road is with being provided with the 4th blowdown piping between gas delivery outlet, and described the
One blowdown piping, the second blowdown piping, the 3rd blowdown piping, the 4th blowdown piping connect with emptying main pipe rail.
The first output branch road and the second output branch road also include the flowmeter set gradually along gas flow direction
Gate valve and flowmeter, the flowmeter are located at before stop valve.
First blowdown piping and the second blowdown piping include set gradually along gas flow direction the second gate valve,
Safety valve, the 3rd gate valve.
3rd blowdown piping and the 4th blow-down pipe include set gradually along gas flow direction the 4th gate valve,
Stop valve.
The decompression pipeline, the first output branch road, the second output branch road are equipped with the spare duct of parallel connection.
First blowdown piping and the second blowdown piping are equipped with the spare duct of parallel connection, and the spare duct includes edge
Ball valve that gas flow direction is set gradually, stop valve.
First pressure regulator valve is automatic pressure regulator, the automatic pressure regulator and the interlocking of urgent block valve.
The beneficial effects of the utility model are：This natural gas pressure regulating skid-mounted unit provided by the utility model, have more
Level security defencive function, the first blowdown piping is provided between urgent block valve and the first pressure regulator valve, when circuit superpressure, is passed through
First safety valve carries out emergency blow-down；The second blowdown piping is provided between the first gate valve and gas-liquid separator, when circuit superpressure
When, emergency blow-down is carried out by the second safety valve；Emptying manually is provided with before downstream gas port is entered, when circuit superpressure, is beaten
Open a sluice gate valve and stop valve is vented.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, interface；2nd, urgent block valve；3rd, the first ball valve；4th, the first pressure regulator valve；5th, the first gate valve；6th, the 5th ball
Valve；7th, the second pressure regulator valve；8th, the 7th gate valve；9th, gas-liquid separator；10th, first flowmeter gate valve；11st, first flowmeter；12nd,
One stop valve；13rd, the 5th gate valve；14th, the second ball valve；15th, first gas delivery outlet is used；16th, second flowmeter gate valve；17th, second
Flowmeter；18th, the second stop valve；19th, the 6th gate valve；20th, the 3rd ball valve；21st, second gas delivery outlet is used；22nd, discharge opeing ball valve；
23rd, the second gate valve a；24th, the first safety valve；25th, the 3rd gate valve a；26th, pneumatic ball valve；27th, the 5th stop valve；28th, the second gate valve
b；29th, the second safety valve；30th, the 3rd gate valve b；31st, the 4th ball valve；32nd, the 6th stop valve；33rd, the 4th gate valve a；34th, the 3rd section
Only valve；35th, the 4th gate valve b；36th, the 4th stop valve.
Embodiment
Embodiment 1：
Present embodiments provide a kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function, including skid,
Gas-liquid separator 9 and a plurality of pipeline in skid, a plurality of pipeline include air inlet pipeline, decompression pipeline, the first output
Branch road, the second output branch road and emptying main pipe rail；
Described decompression pipeline one end is connected with air inlet pipeline, and the other end is connected with gas-liquid separator 9, the first output branch
The gas outlet of road and the second output branch road with gas-liquid separator 9 connects, and the air inlet pipeline includes urgent block valve 2, described
Decompression pipeline includes the first ball valve 3, the first pressure regulator valve 4 and the first gate valve 5 that are set gradually along gas flow direction, and described first
Include stop valve, the ball valve set gradually along gas flow direction on output branch road and the second output branch road；
The first blowdown piping, first gate valve 5 and gas-liquid point are provided between the urgent ball valve 3 of block valve 2 and first
From the second blowdown piping is provided between device 9, second ball valve 14 and first is exported between the first use gas delivery outlet 15 of branch road
Provided with the 3rd blowdown piping, the second of the output of the 3rd ball valve 20 and second branch road is put between gas delivery outlet 21 provided with the 4th
Blank pipe road, first blowdown piping, the second blowdown piping, the 3rd blowdown piping, the 4th blowdown piping are with being vented main pipe rail
Connection.
The course of work：Treatment plant carrys out gas and enters air inlet pipeline by interface 1, and decompression tube road is entered after urgent block valve 2,
Gas-liquid separator 9 is entered by the first gate valve 5 after the decompression of the first pressure regulator valve 4, separates the drop in gas, liquid passes through gas
The discharge opeing ball valve 22 of the bottom of liquid/gas separator 9 is discharged, and the gas isolated is by the first output branch road and second output two branch of branch road
Road exports, and enters downstream with the gas of gas delivery outlet 15, second delivery outlet 21 by first respectively.
The present embodiment natural gas pressure regulating skid-mounted unit has multilevel security defencive function, is adjusted in urgent block valve 2 and first
The first blowdown piping is provided between pressure valve 4, when circuit superpressure, emergency blow-down is carried out by the first safety valve 24；In the first lock
The second blowdown piping is provided between valve 5 and gas-liquid separator 9, when circuit superpressure, is promptly put by the second safety valve 29
It is empty；Emptying manually is provided with before downstream gas port is entered, when circuit superpressure, gate valve is opened and stop valve is vented.
Embodiment 2：
On the basis of embodiment 1, a kind of natural gas pressure regulating with multilevel security defencive function is present embodiments provided
Skid-mounted unit, the first output branch road and the second output branch road also include the flowmeter set gradually along gas flow direction
Gate valve and flowmeter, the flowmeter are located at before stop valve.Pressure regulation and metering can be realized.
First blowdown piping and the second blowdown piping include set gradually along gas flow direction the second gate valve,
Safety valve, the 3rd gate valve.
3rd blowdown piping and the 4th blow-down pipe include set gradually along gas flow direction the 4th gate valve,
Stop valve.
As shown in figure 1, the first output branch road include setting gradually along gas flow direction first flowmeter gate valve 10, the
Flow meters 11, the first stop valve 12, the second ball valve 14；Second output branch road includes the set gradually along gas flow direction
Two flowmeter gate valves 16, second flowmeter 17, the second stop valve 18, the 3rd ball valve 20；First blowdown piping is included along gas stream
The second gate valve a 23 that dynamic direction is set gradually, the first safety valve 24, the 3rd gate valve a 25；Second blowdown piping is included along gas
The second gate valve b 28 that flow direction is set gradually, the second safety valve 29, the 3rd gate valve b 30；3rd blowdown piping is included along gas
The 4th gate valve a 33, the 3rd stop valve 34 that body flow direction is set gradually；4th blow-down pipe is included along gas flow direction
The 4th gate valve b 35, the 4th stop valve 36 set gradually.
In the present embodiment, the second gate valve includes the second gate valve a 23 and the second gate valve b 28；3rd gate valve includes the 3rd
The gate valve b 30 of gate valve a 25 and the 3rd；4th gate valve includes the 4th gate valve a 33 and the 4th gate valve b 35.
Embodiment 3：
On the basis of embodiment 2, present embodiments providing a kind of as shown in Figure 1 has multilevel security defencive function
Natural gas pressure regulating skid-mounted unit, the decompression pipeline, the first output branch road, the second output branch road are equipped with the standby pipe of parallel connection
Road.
First blowdown piping and the second blowdown piping are equipped with the spare duct of parallel connection, and the spare duct includes edge
Ball valve that gas flow direction is set gradually, stop valve.
As shown in figure 1, decompression pipeline has two-way, the using and the reserved, being depressured pipeline all the way is included along gas flow direction successively
The first ball valve 3, the first pressure regulator valve 4 and the first gate valve 5 set, another way include the 5th set gradually along gas flow direction
Ball valve 6, the second pressure regulator valve 7 and the 7th gate valve 8；First output branch road has a two-way, the using and the reserved, and the first output branch road includes all the way
First flowmeter gate valve 10, first flowmeter 11, the first stop valve 12, the second ball valve set gradually along gas flow direction
14, another way first, which exports branch road, includes the 5th gate valve 13；Second output branch road has two-way, the using and the reserved, includes all the way along gas
Second flowmeter gate valve 16 that body flow direction is set gradually, second flowmeter 17, the second stop valve 18, the 3rd ball valve 20, separately
Include the 6th gate valve 19 all the way.
First blowdown piping has two-way, the using and the reserved, includes the second gate valve a set gradually along gas flow direction all the way
23rd, the first safety valve 24, the 3rd gate valve a 25, pneumatic ball valve 26 that another way includes setting gradually along gas flow direction, the
Five stop valves 27；When circuit superpressure, emergency blow-down is carried out by the first safety valve 24；When circuit leakage or the first safety valve 24
When just carrying out maintenance replacing, open pneumatic ball valve 26 and be remotely vented.
Second blowdown piping has two-way, and the using and the reserved, the second blowdown piping including setting successively along gas flow direction all the way
The second gate valve b 28, the second safety valve 29, the 3rd gate valve b 30 put, another way include what is set gradually along gas flow direction
4th ball valve 31, the 6th stop valve 32.When circuit superpressure, emergency blow-down is carried out by the second safety valve 29；When circuit is revealed
Or second safety valve 29 just carry out maintenance change when, open the 4th ball valve 31 be vented manually.
In the present embodiment, first pressure regulator valve 4 is automatic pressure regulator, the automatic pressure regulator and urgent block valve 2
Lock.When the pressure after pressure regulation is unsatisfactory for requiring, the aperture of pressure regulator valve is automatically adjusted so that pressure reaches requirement；After pressure regulation
Pressure it is excessive when, close urgent block valve 2 automatically.
Claims (7)
- A kind of 1. natural gas pressure regulating skid-mounted unit with multilevel security defencive function, it is characterised in that：Including skid, located at sled Gas-liquid separator on seat（9）With a plurality of pipeline, a plurality of pipeline include air inlet pipeline, decompression pipeline, first output branch road, Second output branch road and emptying main pipe rail；Described decompression pipeline one end connects with air inlet pipeline, the other end and gas-liquid separator（9）Connection, the first output branch road With the second output branch road and gas-liquid separator（9）Gas outlet connection, the air inlet pipeline includes urgent block valve（2）, institute State the first ball valve that decompression pipeline includes setting gradually along gas flow direction（3）, the first pressure regulator valve（4）With the first gate valve（5）, Include stop valve, the ball valve set gradually along gas flow direction on the first output branch road and the second output branch road；The urgent block valve（2）With the first ball valve（3）Between be provided with the first blowdown piping, first gate valve（5）And gas-liquid Separator（9）Between be provided with the second blowdown piping, the second ball valve（14）Gas delivery outlet is used with the first of the first output branch road（15） Between be provided with the 3rd blowdown piping, the 3rd ball valve（20）Gas delivery outlet is used with the second of the second output branch road（21）Between be provided with the Four blowdown pipings, first blowdown piping, the second blowdown piping, the 3rd blowdown piping, the 4th blowdown piping are with being vented always Pipeline connection.
- 2. a kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function according to claim 1, its feature It is：The first output branch road and the second output branch road also include the flowmeter gate valve set gradually along gas flow direction And flowmeter, the flowmeter are located at before stop valve.
- 3. a kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function according to claim 1, its feature It is：First blowdown piping and the second blowdown piping include the second gate valve, the peace set gradually along gas flow direction Full valve, the 3rd gate valve.
- 4. a kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function according to claim 1, its feature It is：3rd blowdown piping and the 4th blow-down pipe include set gradually along gas flow direction the 4th gate valve, cut Only valve.
- 5. a kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function according to claim 1, its feature It is：The decompression pipeline, the first output branch road, the second output branch road are equipped with the spare duct of parallel connection.
- 6. a kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function according to claim 1, its feature It is：First blowdown piping and the second blowdown piping are equipped with the spare duct of parallel connection, and the spare duct is included along gas Ball valve that body flow direction is set gradually, stop valve.
- A kind of 7. natural gas pressure regulating sledge dress dress with multilevel security defencive function according to claim any one of 1-6 Put, it is characterised in that：First pressure regulator valve（4）For automatic pressure regulator, the automatic pressure regulator and urgent block valve（2）Interlocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050051.4U CN206973268U (en) | 2017-01-17 | 2017-01-17 | A kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050051.4U CN206973268U (en) | 2017-01-17 | 2017-01-17 | A kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function |
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| Publication Number | Publication Date |
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| CN206973268U true CN206973268U (en) | 2018-02-06 |
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| CN201720050051.4U Active CN206973268U (en) | 2017-01-17 | 2017-01-17 | A kind of natural gas pressure regulating skid-mounted unit with multilevel security defencive function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664356A (en) * | 2020-06-16 | 2020-09-15 | 陕西航天德林科技集团有限公司 | Well site throttling method and well site throttling system |
-
2017
- 2017-01-17 CN CN201720050051.4U patent/CN206973268U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664356A (en) * | 2020-06-16 | 2020-09-15 | 陕西航天德林科技集团有限公司 | Well site throttling method and well site throttling system |
| CN111664356B (en) * | 2020-06-16 | 2022-02-25 | 陕西航天德林科技集团有限公司 | Well site throttling method and well site throttling system |
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