CN106594525A - Integral integrating and skid-mounting method of gas conveying pipeline pressure and flow control system - Google Patents
Integral integrating and skid-mounting method of gas conveying pipeline pressure and flow control system Download PDFInfo
- Publication number
- CN106594525A CN106594525A CN201611154833.9A CN201611154833A CN106594525A CN 106594525 A CN106594525 A CN 106594525A CN 201611154833 A CN201611154833 A CN 201611154833A CN 106594525 A CN106594525 A CN 106594525A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- pressure
- gas
- metering
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 55
- 230000009467 reduction Effects 0.000 claims abstract description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000003345 natural gas Substances 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 40
- 238000011144 upstream manufacturing Methods 0.000 claims description 29
- 238000002955 isolation Methods 0.000 claims description 26
- 238000012544 monitoring process Methods 0.000 claims description 14
- 238000011065 in-situ storage Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000009530 blood pressure measurement Methods 0.000 claims description 6
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000011897 real-time detection Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 12
- 238000012423 maintenance Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
-
- 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
-
- 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
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an integral integrating and skid-mounting method of a gas conveying pipeline pressure and flow control system. The method comprises the steps that 1, natural gas enters N-1metering pipeline braches; 2, the flow state of the gas is adjusted through rectifiers; 3, ultrasonic flowmeters carry out flow metering on the gas, and signals are transmitted into an SCADA system; 4, temperature and pressure detection is carried out, and signals are transmitted into the SCADA system; 5, noise reduction treatment is carried out; 6, electric flow adjustment valves carry out flow adjustment on the gas, and signals are transmitted into the SCADA system; 7, pressure detection is carried out on the adjusted gas, and signals are transmitted into the SCADA system; 8, emptying is carried out; 9, contamination drainage is carried out; 10, the adjusted gas is gathered to an outlet, and signals are transmitted into the SCADA system; and 11, the SCADA system receives the signals for processing and issues a control signal. The integral integrating and skid-mounting method has the beneficial effect of achieving real-time detection and control on the pressure, flow and temperature of multiple paths of gas of a gas conveying pipeline station yard.
Description
Technical Field
The invention relates to the technical field of pipeline systems, in particular to an integrated skid-mounted method of a pressure and flow control system of a gas pipeline.
Background
In a gas pipeline station, the flow and pressure of the gas conveyed by the pipeline are required to be detected and controlled in order to meet the normal operation of the pipeline. The prior main adopted process methods comprise two methods: the method comprises the steps that a metering system and a pressure regulating system are respectively arranged, the two systems are relatively independent, the metering system mainly comprises a front air collecting pipe, a rear air collecting pipe, an upstream straight pipe section, a downstream cut-off valve and a flowmeter, the pressure regulating system mainly comprises a front air collecting pipe, a rear air collecting pipe, an upstream cut-off valve, a downstream cut-off valve and a regulating valve, data of the metering system and the pressure regulating system are uploaded to a station control system, and flow and pressure detection and control are achieved through the station control system; and secondly, calculating the gas flow by calculating the differential pressure of the pressure regulating system.
Both of these methods have their own disadvantages. For the first method, the flow meters and the regulating valves cannot be in one-to-one correspondence, the flow control response time is slow, and the system regulating precision is low. For the second method, the accuracy of the measured data is low, and the accurate measurement and control of the flow cannot be realized; the flowmeter has no remote maintenance and remote fault diagnosis functions; the structure and the adjustment precision of the adjusting valve are not required, so that the adjustment precision is low and the noise is high; the rectifier before the flowmeter has no heat preservation and heat tracing, and ice blockage is easy to occur during operation in winter; the manifold and the valve increase the potential safety hazard and the maintenance workload; the occupied area of the equipment is large and the investment is high.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an integrated skid-mounted method for a gas pipeline pressure and flow control system, which can realize real-time detection and control of pressure, flow and temperature of multiple paths of gas in a gas pipeline station.
The invention provides an integrated skid-mounted method of a gas pipeline pressure flow control system, which specifically comprises the following steps:
step 1, natural gas enters an upstream header of a metering sledge, enters N metering branch pipelines which are arranged in parallel after passing through an upstream manual isolation ball valve at an upstream inlet of a pipeline, wherein N-1 pipelines are used pipelines, and 1 pipeline is a standby pipeline;
step 2, adjusting the gas flow state on each pipeline through rectifiers arranged on the N-1 metering branch pipelines respectively;
step 3, respectively carrying out flow measurement on the gas on each pipeline through ultrasonic flow meters arranged on the N-1 metering branch pipelines, and sending flow measurement signals of the ultrasonic flow meters on each pipeline into the SCADA system after accessing the flow measurement signals of the ultrasonic flow meters on each pipeline into the instrument junction box;
step 4, respectively detecting the temperature and the pressure of the gas on each pipeline through a pressure compensation transmitter, a local bimetallic thermometer, a temperature compensation transmitter and a first local pressure gauge which are arranged on the N-1 metering branch pipelines, and sending a pressure measurement signal of the pressure compensation transmitter and a temperature measurement signal of the temperature compensation transmitter into the SCADA system after being connected into the instrument junction box;
step 5, performing noise reduction treatment on each path of gas through noise reduction equipment arranged on the N-1 paths of metering branch pipelines respectively, and reducing the noise of a flow regulating valve arranged on each path of metering branch pipeline;
step 6, respectively carrying out flow regulation on each path of gas through an electric flow regulating valve arranged on an N-1 path of metering branch pipeline according to requirements, and sending a flow regulation monitoring signal of the electric flow regulating valve into an SCADA system after being connected to the instrument junction box;
step 7, respectively carrying out pressure detection on the regulated gas through an intelligent pressure transmitter and a second local pressure gauge which are arranged on the N-1 metering branch pipeline, and sending a pressure measurement signal of the intelligent pressure transmitter into the SCADA system after being connected to the instrument junction box;
step 8, emptying through emptying pipelines arranged on the N-1 metering branch pipelines respectively;
step 9, discharging sewage to the pipeline through a first sewage discharge pipeline arranged on the upstream collecting pipe of the metering sledge and a second sewage discharge pipeline arranged on the downstream collecting pipe of the metering sledge;
step 10, collecting the regulated gas to a downstream manifold of the metering sledge at an outlet through a downstream electric isolation ball valve at a downstream outlet, and sending a monitoring signal of the downstream electric isolation ball valve to an SCADA system after accessing a monitoring signal of the downstream electric isolation ball valve to the instrument junction box;
step 11, the SCADA system receives flow metering signals of N-1 ultrasonic flow meters, pressure measuring signals of N-1 pressure compensation transmitters, temperature measuring signals of N-1 temperature compensation transmitters, flow adjusting monitoring signals of N-1 electric flow adjusting valves, pressure measuring signals of N-1 intelligent pressure transmitters and monitoring signals of N-1 downstream electric isolation ball valves, processes the received signals through a processor, sends flow control signals to the electric flow adjusting valves on the N-1 metering branch pipelines to complete adjustment of gas flow on the N-1 metering branch pipelines, sends pressure control signals to the pressure compensation transmitters on the N-1 metering branch pipelines to complete adjustment of gas pressure on the N-1 metering branch pipelines, and issuing a temperature control signal to the temperature compensation transmitter on the N-1 metering branch pipeline to complete the regulation of the gas temperature on the N-1 metering branch pipeline.
The invention has the beneficial effects that: on the premise of ensuring the metering precision and the flow regulation precision, the real-time detection and control of the pressure, the flow and the temperature of the multi-path gas of the gas pipeline station can be realized.
Drawings
Fig. 1 is a schematic flow chart illustrating an integrated skid-mounting method of a gas pipeline pressure and flow control system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an integrated skid-mounted device of the gas pipeline pressure and flow control system adopted in the present invention.
In the figure, the position of the upper end of the main shaft,
1. a sledge inlet flange; 2. a metering skid upstream header; 3. a pipe cap; 4. a metering branch line; 5. an upstream manual isolation ball valve; 6. a bypass balancing valve; 7. a bypass balancing manual ball valve; 8. an ultrasonic flow meter; 9. a noise reduction device; 10. an electric flow regulating valve; 11. a downstream electrically-powered isolation ball valve; 12. a pressure compensation transmitter; 13. an in situ bimetallic thermometer; 14. a temperature compensation transmitter; 15. a first in-situ pressure gauge; 16. an intelligent pressure transmitter; 17. a second in-situ pressure gauge; 18. an emptying throttle stop valve; 19. a manual emptying ball valve; 20. a sledge outlet flange; 21. a first manual blowdown ball valve; 22. a first manual valve sleeve type drain valve; 23. a second manual blowdown ball valve; 24. a second manual valve sleeve type drain valve; 25. a first instrument cable; 26. a second instrument cable; 27. a third instrument cable; 28. a fourth instrument cable; 29. a fifth instrument cable; 30. an instrument junction box; 31. a first drain line blind flange; 32. a fourth flange; 33. a rectifier; 34. a bypass line; 35. an emptying pipeline; 36. a first waste line; 37. a second waste line; 38. a second waste line blind flange; 39. an inlet main line; 40. an outlet main line; 41. a downstream header of the metering skid.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1, an integrated skid-mounting method for a gas pipeline pressure and flow control system according to an embodiment of the present invention specifically includes:
step 1, natural gas enters an upstream header pipe 2 of a metering skid, enters N metering branch pipelines 4 which are arranged in parallel after passing through an upstream manual isolation ball valve 5 at an upstream inlet of a pipeline, wherein N-1 pipeline is a using pipeline, and 1 pipeline is a standby pipeline;
step 2, adjusting the gas flow state on each pipeline through a rectifier 33 arranged on the N-1 metering branch pipelines 4;
step 3, respectively carrying out flow measurement on the gas on each pipeline through the ultrasonic flow meters 8 arranged on the N-1 measuring branch pipelines 4, and sending flow measurement signals of the ultrasonic flow meters 8 on each pipeline into the SCADA system after being connected into the instrument junction box 30;
step 4, respectively detecting the temperature and the pressure of the gas on each pipeline through a pressure compensation transmitter 12, an on-site bimetallic thermometer 13, a temperature compensation transmitter 14 and a first on-site pressure gauge 15 which are arranged on the N-1 metering branch pipelines 4, and sending a pressure measurement signal of the pressure compensation transmitter 12 and a temperature measurement signal of the temperature compensation transmitter 14 into an instrument junction box 30 and then into the SCADA system;
step 5, performing noise reduction treatment on each path of gas through noise reduction equipment 9 arranged on the N-1 paths of metering branch pipelines 4 respectively, and reducing the noise of a flow regulating valve 10 arranged on each path of metering branch pipeline 4;
step 6, respectively carrying out flow regulation on each path of gas through the electric flow regulating valve 10 arranged on the N-1 paths of metering branch pipelines 4 according to requirements, and sending a flow regulation monitoring signal of the electric flow regulating valve 10 into the SCADA system after being connected into the instrument junction box 30;
step 7, respectively carrying out pressure detection on the regulated gas through an intelligent pressure transmitter 16 and a second local pressure gauge 17 which are arranged on the N-1 metering branch pipeline 4, and sending a pressure measurement signal of the intelligent pressure transmitter 16 into an SCADA system after being connected into an instrument junction box 30;
step 8, emptying through emptying pipelines 35 arranged on the N-1 metering branch pipelines 4 respectively;
step 9, carrying out pollution discharge on the pipeline through a first pollution discharge pipeline 36 arranged on the metering sledge upstream header 2 and a second pollution discharge pipeline 37 arranged on the metering sledge downstream header 41;
step 10, collecting the regulated gas to a downstream manifold 41 of a metering sledge at an outlet through a downstream electric isolation ball valve 11 at the downstream outlet, and sending a monitoring signal of the downstream electric isolation ball valve 11 to an SCADA system after accessing a monitoring signal of an instrument junction box 30;
step 11, the SCADA system receives flow metering signals of N-1 ultrasonic flowmeters 8, pressure measuring signals of N-1 pressure compensating transmitters 12, temperature measuring signals of N-1 temperature compensating transmitters 14, flow regulating and monitoring signals of N-1 electric flow regulating valves 10, pressure measuring signals of N-1 intelligent pressure transmitters 16 and monitoring signals of N-1 downstream electric isolating ball valves 11, processes the received signals through a processor, sends flow control signals to the electric flow regulating valves 10 on the N-1 metering branch pipelines 4 to regulate the gas flow on the N-1 metering branch pipelines 4, sends pressure control signals to the pressure compensating transmitters 12 on the N-1 metering branch pipelines 4 to regulate the gas pressure on the N-1 metering branch pipelines 4, and issuing a temperature control signal to the temperature compensation transmitter 14 on the N-1 metering branch pipelines 4 to complete the adjustment of the gas temperature on the N-1 metering branch pipelines 4.
As shown in fig. 2, the skid-mounted device adopted by the present invention is arranged on a main pipeline of a station site, and comprises: a skid inlet flange 1, a skid outlet flange 20, an inlet main line 39, an outlet main line 40, a metering skid upstream header 2, a metering skid downstream header 41, a pipe cap 3, 4 pressure flow control pipelines and an instrument junction box 30.
The 4 pressure flow control pipelines consist of 3 (3x 33%) pressure flow metering pipelines and 1 (1x 33%) pressure flow metering pipelines which are arranged in parallel and comprise 16-inch ANSI600# and comprise ultrasonic flow meters (USZ08) 8. The data transmission between the ultrasonic flowmeter 8 and the flow computer disposed in the station control room is performed via a bus. A kit of sized metering skids upstream header 2 is connected to inlet main line 39, to 4 lines of 16 inch ANSI600# pressure flow control lines, then to metering skids downstream header 41, and to outlet main line 40.
Wherein, each pressure flow control pipeline comprises a metering branch pipeline 4, two ends of the metering branch pipeline 4 are respectively connected with an upstream manifold 2 of the metering skid and a downstream manifold 41 of the metering skid, an upstream manual isolation ball valve 5, a rectifier 33, an ultrasonic flowmeter 8, an in-situ bimetallic thermometer 13, a temperature compensation transmitter 14, a first in-situ pressure gauge 15, a noise reduction device 9, an electric flow regulating valve 10, an intelligent pressure transmitter 16, a second in-situ pressure gauge 17 and a downstream electric isolation ball valve 11 are sequentially connected on the metering branch pipeline 4 in series on the metering branch pipeline 4 at an interval of 30D of the upstream manual isolation ball valve 5, the in-situ bimetallic thermometer 13, the temperature compensation transmitter 14 and the first in-situ pressure gauge 15 are positioned on the metering branch pipeline 4 at a position which is not less than 5D downstream of the ultrasonic flowmeter 8, the noise reduction device 9 is positioned on the metering branch pipeline 4 at a position which is not less than 15D downstream of the ultrasonic flowmeter 8, the electric flow control valve 10 is positioned on the metering branch pipeline 4 within the downstream of the noise reduction device 9 which is not less than 5D, and the intelligent pressure transmitter 16 and the second local pressure gauge 17 are positioned on the metering branch pipeline 4 between the electric flow control valve 10 and the downstream electric isolation ball valve 11 connected with the downstream of the electric flow control valve 10.
A first sewage discharge pipeline 36 is arranged on the metering sledge upstream header 2, one end of the first sewage discharge pipeline 36 is connected with the metering sledge upstream header 2, the other end of the first sewage discharge pipeline 36 is connected with a station sewage discharge system through a first sewage discharge pipeline blind flange 31, and a first manual sewage discharge ball valve 21 and a first manual valve sleeve type sewage discharge valve 22 are sequentially connected on the first sewage discharge pipeline 36 in series along the sewage discharge flow direction.
A second blow-off pipeline 37 is arranged on the downstream manifold 41 of the metering sledge, one end of the second blow-off pipeline 37 is connected with the downstream manifold 41 of the metering sledge, the other end of the second blow-off pipeline 37 is connected with the station drainage system through a second blow-off pipeline blind flange 38, and a second manual blowdown ball valve 23 and a second manual movable sleeve type blowdown valve 24 are sequentially connected in series on the second blow-off pipeline 37 along the blowdown flow direction.
The upstream manual isolation ball valve 5 is provided with a bypass pipeline 34, one end of the bypass pipeline 34 is connected to the metering branch pipeline 4 between the metering skid upstream header 2 and the upstream manual isolation ball valve 5, the other end of the bypass pipeline 34 is connected to the metering branch pipeline 4 between the upstream manual isolation ball valve 5 and the rectifier 33, and the bypass pipeline 34 is sequentially connected with the bypass balance valve 6 and the bypass balance manual ball valve 7 in series along the natural gas flow direction.
Straight pipe sections are arranged on the metering branch pipelines 4 at the front and the back of the ultrasonic flowmeter 8, and a pressure compensation transmitter 12 is arranged on the ultrasonic flowmeter 8.
An emptying pipeline 35 is arranged between the second local pressure meter 17 and the downstream electric isolation ball valve 11, one end of the emptying pipeline 35 is connected to a metering branch pipeline 4 between the second local pressure meter 17 and the downstream electric isolation ball valve 11, the other end of the emptying pipeline 35 is connected with a station emptying system through an emptying pipeline blind flange 32, and a manual emptying ball valve 19 and an emptying throttling stop valve 18 are sequentially connected in series on the emptying pipeline 35 along the natural gas flow direction.
Ultrasonic flowmeter 8 is connected with instrument junction box 30 through first instrument cable 25, pressure compensation transmitter 12 is connected with instrument junction box 30 through second instrument cable 26, temperature compensation transmitter 14 is connected with instrument junction box 30 through third instrument cable 27, electronic flow control valve 10 and intelligent pressure transmitter 16 all are connected with instrument junction box 30 through fourth instrument cable 28, electronic isolation ball valve 11 of low reaches is connected with instrument junction box 30 through fifth instrument cable 29, instrument junction box 30 and SCADA headtotail.
Wherein,
the calibers of the upstream collecting pipe 2 of the metering skid, the downstream collecting pipe 41 of the metering skid, the inlet main pipeline 39 and the outlet main pipeline 40 are phi 1067mm, the calibers of the metering branch pipeline 4 are phi 406.4mm, the calibers of the bypass pipeline 34 are phi 60.3mm, the calibers of the emptying pipeline 35 are phi 60.3mm, and the calibers of the first blowdown pipeline 36 and the second blowdown pipeline 37 are phi 60.3 mm.
The upstream manual isolation ball valve 5 adopts a ball valve with a DBB structure, which is produced by Dutch BAF BV company, pressure grade ANSI600# and caliber DN 400.
The downstream electric isolation ball valve 11 adopts a ball valve with a DBB structure, is produced by BAF BV of the Netherlands, has the pressure grade of ANSI600# and the caliber DN400, and is matched with an electric actuator produced by Rotork of America, and has the model of SmartIQ.
The ultrasonic flowmeter 8 is configured with a model USZ08 model, pressure grade ANSI600#, caliber DN400, 6 channel, manufactured by RMG, germany.
The electric flow control valve 10 adopts the model of RZD-REQX produced by Mokveld, the Netherlands, the pressure grade is Class600, the caliber is DN400, and an adjusting electric actuating mechanism produced by Rotork company in the United states is matched and provided, and the model is IQM 30.
The system comprises a bypass balance manual Globe valve 6, a bypass balance valve manual ball valve 7, an emptying throttling stop valve 18, a manual emptying ball valve 19, a first manual blowdown ball valve 21, a second manual blowdown ball valve 23, a first manual valve sleeve type blowdown valve 22 and a second manual valve sleeve type blowdown valve 24, wherein the models are Q47F models, pressure grades ANSI600#, and calibers 2' produced by Leshan Chang apparatus of China.
The pressure compensation transmitter 12 and the intelligent pressure transmitter 16 are manufactured by Rosemount, model 3051S, 1/2 NPT, Range:0-12MPa, with LCD display.
The temperature compensation transmitter 14 is made of 3144P model manufactured by Rosemount, 1/2 NPT, Range, 60-80 ℃ with LCD display.
The first and second on-site pressure gauges 15 and 17 are made of RchgG100-1, 0-12 MPa-1/2' NPT, 100mm dial plate and 316SSL manufactured by WIKA of Germany.
The on-site bimetallic thermometer 13 is made of RchgG100-1, 0-12 MPa-1/2' NPT, 100mm dial plate and 316SSL produced by WIKA in Germany.
The pressure rating for all process lines and equipment meet the Class600 requirements and are integrated on a skid of 33330mm (length) 8800mm (width) 240mm (height). After the whole device is skid-mounted, production and processing are finished, relevant anticorrosion and antirust treatment is needed, and all process pipelines and equipment are subjected to constant-temperature electric stirring heat and heat preservation treatment.
The protection grade of the device is IP65, the explosion-proof grade is EXdIIBT4, and the requirements of open-air environment and field explosion-proof are completely met; the device is connected with a process pipeline by adopting a standard flange and is suitable for the working condition of high pressure; the device integrates a metering system and a pressure regulating system into a set of system, the flow meters and the regulating valves are in one-to-one correspondence and are connected in series, and metering data from a flow computer can be directly input into corresponding regulating valve heads to perform accurate flow control, so that the regulating response time is greatly shortened, and the regulating precision is improved; the noise reduction device designed aiming at a specific working condition is arranged between the flow regulating valve and the flowmeter, so that the problem that the flowmeter cannot normally work due to the noise influence of the flow regulating valve when the flowmeter and the flow regulating valve are directly connected in series is solved, the noise generated by the flow regulating valve can be effectively absorbed through the noise reduction device, and the normal work of the gas ultrasonic flowmeter is ensured; the whole precision of the whole system is ensured by adopting a high-precision detection and control instrument, and the high-precision gas ultrasonic flowmeter is used as a flow detection instrument and has the advantages of high precision, large adaptive flow range, no pressure loss, energy conservation, no moving part, small maintenance amount, small occupied area and the like; the axial-flow or labyrinth multi-stage pressure reduction regulating valve has the advantages of high regulating precision, low noise, low maintenance cost, suitability for high pressure and harsh working conditions and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An integrated skid-mounted method for a gas pipeline pressure and flow control system is characterized by specifically comprising the following steps:
step 1, natural gas enters an upstream header pipe (2) of a metering sledge, enters N metering branch pipelines (4) which are arranged in parallel after passing through an upstream manual isolation ball valve (5) of an upstream inlet of a pipeline, wherein N-1 pipeline is a using pipeline, and 1 pipeline is a standby pipeline;
step 2, adjusting the gas flow state on each pipeline through a rectifier (33) arranged on the N-1 metering branch pipelines (4);
step 3, respectively carrying out flow measurement on the gas on each pipeline through the ultrasonic flow meters (8) arranged on the N-1 measuring branch pipelines (4), and sending flow measurement signals of the ultrasonic flow meters (8) on each pipeline into the SCADA system after being accessed into the meter junction box (30);
step 4, respectively detecting the temperature and the pressure of the gas on each pipeline through a pressure compensation transmitter (12), an in-situ bimetallic thermometer (13), a temperature compensation transmitter (14) and a first in-situ pressure gauge (15) which are arranged on the N-1 metering branch pipelines (4), and sending a pressure measurement signal of the pressure compensation transmitter (12) and a temperature measurement signal of the temperature compensation transmitter (14) into the SCADA system after being connected to the instrument junction box (30);
step 5, performing noise reduction treatment on each path of gas through noise reduction equipment (9) arranged on N-1 paths of metering branch pipelines (4) respectively, and reducing the noise of a flow regulating valve (10) arranged on each path of metering branch pipeline (4);
step 6, respectively carrying out flow regulation on each path of gas through an electric flow regulating valve (10) arranged on the N-1 paths of metering branch pipelines (4) according to requirements, and sending a flow regulation monitoring signal of the electric flow regulating valve (10) into the SCADA system after being connected into the instrument junction box (30);
step 7, respectively carrying out pressure detection on the regulated gas through an intelligent pressure transmitter (16) and a second local pressure meter (17) which are arranged on the N-1 metering branch pipelines (4), and sending a pressure measurement signal of the intelligent pressure transmitter (16) into the SCADA system after being accessed into the instrument junction box (30);
step 8, respectively emptying through emptying pipelines (35) arranged on the N-1 metering branch pipelines (4);
step 9, carrying out blowdown on the pipeline through a first blowdown pipeline (36) arranged on the metering sledge upstream header (2) and a second blowdown pipeline (37) arranged on the metering sledge downstream header (41);
step 10, collecting the regulated gas to a downstream collecting pipe (41) of the metering sledge at an outlet through a downstream electric isolation ball valve (11) at a downstream outlet, and sending a monitoring signal of the downstream electric isolation ball valve (11) to an SCADA system after being connected to the instrument junction box (30);
step 11, the SCADA system receives flow metering signals of N-1 ultrasonic flow meters (8), pressure measuring signals of N-1 pressure compensation transmitters (12), temperature measuring signals of N-1 temperature compensation transmitters (14), flow regulation monitoring signals of N-1 electric flow regulating valves (10), pressure measuring signals of N-1 intelligent pressure transmitters (16) and monitoring signals of N-1 downstream electric isolation ball valves (11), processes the received signals through a processor, sends flow control signals to the electric flow regulating valves (10) on the N-1 metering branch pipelines (4) to regulate gas flow on the N-1 metering branch pipelines (4), and sends pressure control signals to the pressure compensation transmitters (12) on the N-1 metering branch pipelines (4) to complete metering branch of the N-1 metering branch And adjusting the gas pressure on the branch pipeline (4), and sending a temperature control signal to the temperature compensation transmitter (14) on the N-1 metering branch pipeline (4) to complete the adjustment of the gas temperature on the N-1 metering branch pipeline (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154833.9A CN106594525B (en) | 2016-12-14 | 2016-12-14 | Gas pipeline pressure flow hybrid control system integration sledge fills method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154833.9A CN106594525B (en) | 2016-12-14 | 2016-12-14 | Gas pipeline pressure flow hybrid control system integration sledge fills method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594525A true CN106594525A (en) | 2017-04-26 |
| CN106594525B CN106594525B (en) | 2018-11-20 |
Family
ID=58802542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611154833.9A Active CN106594525B (en) | 2016-12-14 | 2016-12-14 | Gas pipeline pressure flow hybrid control system integration sledge fills method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594525B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018911A (en) * | 2017-12-16 | 2018-05-11 | 天津市禾厘油气技术有限公司 | A kind of novel pressure water pot sledge |
| CN109114429A (en) * | 2018-08-16 | 2019-01-01 | 北京航天石化技术装备工程有限公司 | A kind of low pressure thermodynamic equilibrium method of depressurized system |
| CN109185702A (en) * | 2018-08-16 | 2019-01-11 | 北京航天石化技术装备工程有限公司 | A kind of process of depressurized system |
| CN110726439A (en) * | 2019-11-26 | 2020-01-24 | 河北南玻玻璃有限公司 | Sulfur dioxide transmission remote monitoring system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007013A (en) * | 2019-02-01 | 2019-07-12 | 中国石油天然气集团公司 | A kind of gas pipeline gas component real-time analyzer and real-time analysis method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1367322A (en) * | 1970-09-18 | 1974-09-18 | Kernforschungsanlage Juelich | Apparatus and method for regulating gas pressure in a closed gas circuit |
| WO1998043140A1 (en) * | 1997-03-22 | 1998-10-01 | Bg Plc | Pressure regulating system |
| CN2918966Y (en) * | 2006-03-29 | 2007-07-04 | 浙江春晖智能控制股份有限公司 | Gas pressure regulating metering device |
| CN201944553U (en) * | 2011-01-14 | 2011-08-24 | 上海万事红燃气技术发展有限公司 | High-pressure regulating box for compressed natural gas supply station |
| CN202598128U (en) * | 2012-06-01 | 2012-12-12 | 苏州瑞雪气体设备有限公司 | Skid-mounted type natural gas gasification pressure-regulating and measuring output device |
| CN203656576U (en) * | 2013-11-22 | 2014-06-18 | 山东科瑞油气工艺设备有限公司 | Pressure regulating and metering platform for fuel gas |
| CN104913198A (en) * | 2015-04-14 | 2015-09-16 | 河南宏天实业有限公司 | Automatic yield and pressure adjusting device for natural gas producing well and control method |
| CN205261226U (en) * | 2015-11-13 | 2016-05-25 | 天津华迈燃气装备股份有限公司 | Large -scale regulator of brief multi -functional incessant air feed |
-
2016
- 2016-12-14 CN CN201611154833.9A patent/CN106594525B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1367322A (en) * | 1970-09-18 | 1974-09-18 | Kernforschungsanlage Juelich | Apparatus and method for regulating gas pressure in a closed gas circuit |
| WO1998043140A1 (en) * | 1997-03-22 | 1998-10-01 | Bg Plc | Pressure regulating system |
| CN2918966Y (en) * | 2006-03-29 | 2007-07-04 | 浙江春晖智能控制股份有限公司 | Gas pressure regulating metering device |
| CN201944553U (en) * | 2011-01-14 | 2011-08-24 | 上海万事红燃气技术发展有限公司 | High-pressure regulating box for compressed natural gas supply station |
| CN202598128U (en) * | 2012-06-01 | 2012-12-12 | 苏州瑞雪气体设备有限公司 | Skid-mounted type natural gas gasification pressure-regulating and measuring output device |
| CN203656576U (en) * | 2013-11-22 | 2014-06-18 | 山东科瑞油气工艺设备有限公司 | Pressure regulating and metering platform for fuel gas |
| CN104913198A (en) * | 2015-04-14 | 2015-09-16 | 河南宏天实业有限公司 | Automatic yield and pressure adjusting device for natural gas producing well and control method |
| CN205261226U (en) * | 2015-11-13 | 2016-05-25 | 天津华迈燃气装备股份有限公司 | Large -scale regulator of brief multi -functional incessant air feed |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018911A (en) * | 2017-12-16 | 2018-05-11 | 天津市禾厘油气技术有限公司 | A kind of novel pressure water pot sledge |
| CN109114429A (en) * | 2018-08-16 | 2019-01-01 | 北京航天石化技术装备工程有限公司 | A kind of low pressure thermodynamic equilibrium method of depressurized system |
| CN109185702A (en) * | 2018-08-16 | 2019-01-11 | 北京航天石化技术装备工程有限公司 | A kind of process of depressurized system |
| CN110726439A (en) * | 2019-11-26 | 2020-01-24 | 河北南玻玻璃有限公司 | Sulfur dioxide transmission remote monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106594525B (en) | 2018-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106594525B (en) | Gas pipeline pressure flow hybrid control system integration sledge fills method | |
| CN206488050U (en) | Gas pipeline pressure flow hybrid control system integration skid-mounted unit | |
| CN106382466B (en) | A kind of gas pipeline metering regulator and method | |
| CN106439495B (en) | Gas pipeline pressure flow hybrid control system integration skid-mounted unit | |
| CN104458152B (en) | Gas valve inner leakage detection method based on acoustic emission signal processing | |
| CN203811492U (en) | Closed type pipeline cycle erosion test device | |
| CN110821457B (en) | Water mixing control method, controller and control system based on wellhead back pressure | |
| CN103822839A (en) | Circular erosion test device for closed pipelines and using method of circular erosion test device | |
| CN1273342A (en) | Method and device for monitoring and locating leakage of fluid delivering pipeline | |
| CN107587586A (en) | A kind of device and the flow control methods based on the device and anti-down irrigation method on pipeline | |
| CN103920329A (en) | Industrial fluid-pipe filter-screen obstruction process simulation detection method | |
| CN104236640A (en) | Simple gas flow measuring device and measuring method | |
| RU118741U1 (en) | MOBILE INSTALLATION FOR MEASURING THE NUMBER OF OIL AND OIL PRODUCTS | |
| RU150321U1 (en) | MOBILE INSTALLATION FOR MEASURING THE QUANTITY AND INDICATORS OF QUALITY OF OIL AND OIL PRODUCTS | |
| CN115585871A (en) | Combined type standard meter method flow standard device and using method | |
| CN202329696U (en) | Online intelligent elbow meter | |
| CN202547737U (en) | Online power plant feedwater flow calibration device based on heat balance | |
| CN104713603B (en) | Critical speed flowmeters amount system | |
| CN205861169U (en) | A kind of aerosol sampler flow on-line calibration device | |
| CN107844150A (en) | A kind of device and flow monitoring and maximum stream flow control method and anti-down irrigation method based on the device | |
| CN204007727U (en) | A kind of simple gas flow measurement device | |
| CN202453012U (en) | Multi-step dual-pore plate differential pressure fluid flow measurement device | |
| CN210215228U (en) | Flow monitoring device for coke oven crude gas riser heat exchanger | |
| CN208736530U (en) | A kind of water meter calibration | |
| CN208579797U (en) | A kind of assembled flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171127 Address after: 100120 Beijing Xicheng District six laying Kang 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: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Applicant before: China National Petroleum Corp. Applicant before: China Petroleum Pipeline Engineering Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Co-patentee after: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100120 Liupu Kang, Xicheng District, Beijing Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd. Patentee before: China National Petroleum Corp. Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190712 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Co-patentee after: CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd. Patentee before: CHINA NATIONAL PETROLEUM Corp. Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |