CN102032931A - Valve-type-V-cone throttling device for measuring operation flow of petroleum and gas extraction and transportation - Google Patents
Valve-type-V-cone throttling device for measuring operation flow of petroleum and gas extraction and transportation Download PDFInfo
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- CN102032931A CN102032931A CN 201010555359 CN201010555359A CN102032931A CN 102032931 A CN102032931 A CN 102032931A CN 201010555359 CN201010555359 CN 201010555359 CN 201010555359 A CN201010555359 A CN 201010555359A CN 102032931 A CN102032931 A CN 102032931A
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- 239000003208 petroleum Substances 0.000 title abstract 4
- 238000000605 extraction Methods 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 19
- 210000001124 body fluid Anatomy 0.000 claims description 10
- 239000010839 body fluid Substances 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005987 sulfurization reaction Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 239000003209 petroleum derivative Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000001737 promoting effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
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Abstract
The invention discloses a valve-type-V-cone throttling device for measuring operation flow of petroleum and gas extraction and transportation. The device comprises a V-shaped cone, a V-cone lifting and replacing device, a valve body, a gate assembly, a sealing ring, a balanced valve, a release valve, a stop valve and a differential pressure transmitter. Petroleum and gas fluids flow in through a medium inlet B and flow out through a medium outlet C. The fluid filling a pipeline passes through a pipeline throttling element (a V-shaped cone) and generates differential pressure in the front and at the rear of the throttling element. The fluid flowing through the throttling element can be judged by measuring the differential pressure. Meanwhile, according to the fact that different V-shaped cones are replaced for different measured medium operation flows during the petroleum and gas extraction and transportation, a V-cone lifting and replacing device simple in structure and easy to use is designed. The V-shaped cone can be conveniently and rapidly replaced on-line based on the measured operation flow without affecting medium transportation.
Description
Technical field
The present invention relates to petroleum gas and adopt the transporting operation flow measurement, relate in particular to the measurement of medium complexity and same pipeline different flow.
Background technology
The current petroleum gas that is used for is adopted the transporting operation flow measurement mainly based on the orifice plate throttling, and next has a spot of V bevel-type restriction device.Because it is the specific (special) requirements of gas producing technology, measuring media are complicated, high to the requirement in serviceable life of restricting element.The orifice plate restricting element of current use, because the defective of structural principle, orifice plate is born a mouthful damage easily, reduce serviceable life, fluid produces before and after the orifice plate restriction and sharply shrinks and expansion, easily produce build up of fluid before and after the throttling element, and the advanced valve type throttle orifice plate apparatus is that orifice plate is contained in the orifice plate seat, with of the transmission of gear driven orifice plate seat tooth bar by two groups of gears, allow orifice plate seat and orifice plate move at the valve upper and lower cavity, owing to structural reason orifice plate seat is easy to generate jam first group of gear transmission in the process of second group of gear, and complicated operating process, the sliding valve structure that adopt on sealed valve body top when changing orifice plate seals firmly, and pumped (conveying) medium is had relatively high expectations relatively; Institute's straight length that requires is longer during installation, and the upstream requires 10D, and the downstream requires 5D.The current in addition a small amount of V awl restriction device that adopts, its V-arrangement awl is welded on the valve body, makes that the V-arrangement awl is non-exchange, causes measurement range very narrow, and use cost increases; The same employing of its whole restriction device two ends and natural gas line is welded to connect, and when whole device broke down or reaches serviceable life, maintenance was all inconvenient with replacing.
Summary of the invention
The objective of the invention is to propose the valve formula V awl restriction device that a kind of petroleum gas is adopted the transporting operation flow measurement, address the above problem.
Technical scheme of the present invention is as follows:
This gas oil stream measurement amount with valve formula V-arrangement awl restriction device have the V-arrangement awl, the V-arrangement awl promotes more changing device, valve body, blind rams group, O-ring seal, equalizing valve, air release, stop valve and differential pressure transmitter etc., wherein:
Described V-arrangement awl promotes more, and changing device comprises stem nut, valve rod, bearing cap, bearing 1, bearing seat, locating piece, crossover sub, bonnet,, contiguous block, supporting seat; Described bonnet, upper end tightens together with the crossover sub lower end; Described locating piece is screwed in the crossover sub upper end, guarantees that the plane must not be higher than the crossover sub upper surface on the locating piece, and the crossover sub upper end tightens together with the bearing seat lower end; The periphery of described stem nut has a circle defining flange, is supported on the bearing seat by bearing 1, and spacing by bearing cap, bearing cap is fixed on the bearing seat, and is placed on the stem nut, makes integral body form a straight barrel; In the endoporus of described bonnet, upper end O-ring seal is set, bonnet, upper end endoporus, crossover sub, locating piece, bearing seat are passed until stem nut in the valve rod upper end, form the screw thread rotation pair with stem nut; In both sides, described valve rod stage casing plane of orientation is set, closely cooperates, to prevent the valve rod rotation with locating piece; Described valve rod lower end is connected with supporting seat.
The bonnet, that described V-arrangement awl promotes on the changing device more is contained on the valve body with bolt, and a cavity is set between bonnet, and the valve body, make that supporting seat and V-arrangement awl slides in lifting process in cavity, the valve rod that is connected and fixed, contiguous block and supporting seat put in the described cavity, supporting seat is contained in the radial location through hole of valve body, and seals with O-ring seal, and the bottom of supporting seat is provided with connecting pin, the welding of connecting pin lower end is the V-arrangement awl fixedly, the V-arrangement awl is positioned at the shaft core position of valve body fluid through hole.
Described blind rams group is installed on the two side of bottom of described cavity, and it has blind rams, laterally turn-offs cavity during work.The diameter of described cavity is greater than the length of V-arrangement awl, and height is greater than the thickness sum of the maximum gauge of V-arrangement awl and blind rams, supporting seat.
Position near V-arrangement awl front-end and back-end on described valve body offers left pressure port, right pressure port, connects stop valve and pressure difference transmitter respectively hermetically in left pressure port, the right pressure port outside.
Equalizing valve and air release are set on described valve body hermetically, and equalizing valve pore one end communicates with the valve body fluid pipeline, and an end communicates with described cavity, and the duct position that communicates with cavity is on described blind rams valve group position; The vent port position of described air release also is arranged on the blind rams valve group position.
According to the medium complexity of petroleum gas, and its measuring accuracy requirement is more and more higher, and the present invention has adopted the throttling of V-arrangement internal cone type; When satisfying the gas oil stream pipeline transportation, the measurement of the different operating modes of same pipeline, and improving that its measurement range, serviceable life and working service are convenient, cost is low, this throttling device design V-arrangement awl promotes the replacing that more changing device and supplementary structure are realized the V-arrangement awl; And the flange bolt connection is fastening with being designed to being connected of oil and gas pipeline.
V-arrangement awl of the present invention promotes the more valve rod and the auxiliary driving of nut valve bar formation screw thread rotation of changing device, and the rectilinear motion up and down that becomes valve rod by rotatablely moving of stem nut promotes and decline supporting seat and V-arrangement awl no jam simple to operate; Promote at valve body and V-arrangement awl between the bonnet, of changing device more a cavity is set, make that supporting seat and V-arrangement awl slide in lifting process in cavity.
Under situation about not stopping production, change the V-arrangement awl in order to make oil and gas pipeline, hermetically sealed flashboard group is set under cavity, on flashboard axis and screw mandrel, adopt the screw thread rotation auxiliary driving to realize the open and close of flashboard, and on flashboard vulcanized rubber, improve its sealing property.
Pressure for balance cavity and valve body fluid pipeline is provided with equalizing valve and vent valve on flashboard, open and close the pressure at its two ends of balance by the control equalizing valve; Vent valve is when changing the V-arrangement awl, need discharge gas in the cavity by vent valve after, can unload the V-arrangement awl and promote more changing device.After withdrawing from supporting seat and V-arrangement awl, valve body both sides blind rams is closed equalizing valve, opens vent valve, arrange the gas in the cavity after, the replacing V-arrangement is bored after unloading the V-arrangement awl again and promoting more changing device.
The present invention's supporting seat and valve body are provided with step and Dou face detent mechanism, when more finishing changing the V-arrangement awl, after assembling V-arrangement awl and promoting more changing device, to close vent valve, open equalizing valve, open flashboard again, rotary valve rod nut then, make supporting seat and V-arrangement awl drop to step and Dou face position, step and Dou face and valve body fluid pipe design accurate dimension, rely on described step and Dou face that the V-arrangement awl is accurately navigated to the shaft core position of valve body fluid pipeline, and the O-ring seal sealing is set on supporting seat.And design one transition section on V-arrangement cone outer segment stream ring, the anti-impact that has increased the V-arrangement cone is rinsed ability.
The advantage of this advanced valve type V awl restriction device is as follows:
1, the V-arrangement awl can online replacing under situation about not stopping production.
2, because this structure in the outer restrictor ring design transition section of V-arrangement awl, is rinsed ability with the anti-impact that increases the V-arrangement cone, improved serviceable life.
3, because flange arrangement is adopted at the valve body two ends, make that this restriction device of maintain and replace is more convenient on oil and gas pipeline.
4, because V bevel-type throttling element particular structure, with the accurate location structure of design, make repeatability and the measuring accuracy that this throttling device tool is very high, repeatability be better than ± 0.1%, measuring accuracy is better than ± 0.5%.
5, because V bevel-type throttling element particular structure, can be by more complicated fluid media (medium), its fluid media (medium) does not produce rapid contraction and expansion in pipeline, only can produce the stream of breathing heavily of high frequency low amplitude value in V bevel-type throttling element downstream, and pressure difference signal is more stable, high-velocity fluid directly washes away V bevel-type throttling element and inner-walls of duct, automatically realize cleaning, do not produce build up of fluid before and after the V awl, have the flow measurement range of broad, representative value is 15:1, has the range ratio of 10:1 at least;
6, structure is simpler, and processing technology interchangeability is good, and easy accessibility is easy to maintenance.
Description of drawings:
Fig. 1 is a valve formula V awl restriction device structural representation.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is the B-B cut-open view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing constructional device of the present invention is described further:
Referring to Fig. 1, Fig. 2, Fig. 3, gas oil stream measurement amount with valve formula V awl restriction device have the V-arrangement awl, the V-arrangement awl promotes more changing device, valve body, blind rams group, O-ring seal, equalizing valve, air release, stop valve, differential pressure transmitter etc.
Referring to Fig. 1,, wherein V-arrangement awl promotes more that changing device comprises stem nut 1, valve rod 2, bearing cap 3, bearing 14, bearing seat 5, locating piece 6, crossover sub 7, bonnet, 9, contiguous block 12, supporting seat 14; Bonnet, 9 upper ends and crossover sub 7 lower ends tighten together; Described locating piece 6 is screwed in crossover sub 7 upper ends, guarantees that the plane must not be higher than crossover sub 7 upper surfaces on the locating piece 6, and crossover sub 7 upper ends and bearing seat 5 lower ends tighten together; The periphery of stem nut 1 has a circle defining flange, is supported on the bearing seat 5 by bearing 14, and spacing by bearing cap 3, bearing cap 3 is fixed on the bearing seat 5, and is placed on the stem nut 1, makes integral body form a straight barrel; In described bonnet, 9 upper end endoporus, O-ring seal 8 is set, bonnet, 9 upper end endoporus, crossover sub 7, locating piece 6, bearing seat 5 are passed until stem nut 1 in valve rod 2 upper ends, make valve rod 2 and stem nut 1 form the screw thread rotation auxiliary driving, the rectilinear motion up and down that becomes valve rod 2 by rotatablely moving of stem nut 1 promotes and descend support seat supports seat 14 and V-arrangement awl 16; In both sides, described valve rod 2 stage casing plane of orientation 25 is set, itself and locating piece 6 are closely cooperated, to prevent valve rod 2 rotations; Described valve rod 2 lower ends and contiguous block 12 welding are fixing, and contiguous block 12 is connected fastening with supporting seat 14 usefulness bolts 13; The bonnet, 9 usefulness bolts 23 that V-arrangement awl promotes on the changing device more are contained on the valve body 19, and a cavity 24 is set between bonnet, 9 and the valve body 19, the diameter of described cavity 24 is greater than the length of V-arrangement awl 16, and height is greater than the thickness sum of the maximum gauge of V-arrangement awl 16 and blind rams 35, contiguous block 12, supporting seat 14.The valve rod 2 that is connected and fixed, contiguous block 12 and supporting seat 14 put in the described cavity 24, make in its lifting process to slide in cavity 24.Supporting seat 14 is contained in the radial location through hole on the valve body 19, and with O-ring seal 20 sealing, the bottom of supporting seat 14 is connected and fixed V-arrangement awl 16 by connecting pin 17, wherein V-arrangement awl 16 is fixing with connecting pin 17 welding, connecting pin 17 passes supporting seat 14 center pits, be fixed on the supporting seat 14 with nut 22, and square opening 27 is set on supporting seat 14, square structure precision-fit with connecting pin 17 middle parts, prevent V-arrangement awl 16 and connecting pin 17 rotations, between V-arrangement awl 16 and connecting pin 17, radial direction seal ring 18 is set.
Referring to Fig. 3, the position that close V-arrangement is bored 16 front-end and back-end on described valve body 19 offers left pressure port 15, right pressure port 28, connects stop valve 29 and pressure difference transmitter 30 respectively hermetically in left pressure port 15, right pressure port 28 outsides.
Referring to Fig. 2, the flashboard group comprises blind rams 35, flashboard axis 33, screw mandrel 31, nut 36, bearing 2 32 and side door 38, and it is connected in the opening part of both sides, valve body 19 front and back with side door bolt 37 with side door 38, between O-ring seal 39 is set.One end of described blind rams 35 non-tight ends and flashboard axis 33 adopts T-slot 41 to flexibly connect, the other end of flashboard axis 33 adopts with screw mandrel 31 and is threaded, the periphery of screw mandrel 31 has a circle defining flange, be supported on the flashboard axis 33 by bearing 2 32, and circumferentially be limited in side door 38, bearing 2 32 upper ends are spacing by nut 36, and nut 36 usefulness thread forms are fixed in side door 38 outsides, and are enclosed within on the screw mandrel 31.O-ring seal 39 is set, radial seal flashboard axis 33 at described side door 38 with flashboard axis 33.Sulfuration caulking gum 40 is realized the flashboard soft seal on described blind rams 35.
Referring to Fig. 1,, equalizing valve 21 and air release 11 are set hermetically on described valve body 19 for the pressure of balance cavity 24 with the valve body fluid pipeline; Pore one end of equalizing valve 21 communicates with the valve body fluid pipeline, and an end communicates with cavity 24, and the duct position that communicates with cavity 24 opens and closes the pressure at its two ends of balance by control equalizing valve 21 on the position of blind rams 35.The position of the vent port of described air release 8 is on blind rams 35 positions, and air release 8 is to bore 16 o'clock changing V-arrangement, behind the gas that needs to discharge in the cavitys by air release 8, can unload V-arrangement awl 16 and promote more changing device.After withdrawing from supporting seat 14 and V-arrangement awl 16, valve body both sides blind rams 35 is closed equalizing valve 21, opens air release 8, arrange the gas in the cavity 24 after, the replacing V-arrangement bores 16 after unloading the V-arrangement awl again and promoting more changing device; When more finishing changing V-arrangement awl 16, after assembling V-arrangement awl and promoting more changing device, to close air release 8, open equalizing valve 21, open blind rams 35 again, the rotary valve rod nut 1 then, make supporting seat 14 and V-arrangement awl 16 drop to step and Dou face 26 positions, step and Dou face 26 and valve body fluid pipe design accurate dimension, rely on described step and Dou face 26 V-arrangement awl 16 accurately to be navigated to the shaft core position of valve body fluid pipeline, therefore can carry under the situation about not stopping production at oil and gas pipeline, change V-arrangement awl 16; And bore design one transition section 42 on the 16 external restrictor rings at V-arrangement, the anti-impact that has increased V-arrangement cone 16 is rinsed ability.
Claims (8)
1. gas oil stream measurement amount is bored restriction device with valve formula V-arrangement, and it has the V-arrangement awl, the V-arrangement awl promotes more changing device, valve body, blind rams group, O-ring seal, equalizing valve, air release, stop valve and differential pressure transmitter, it is characterized in that,
Described V-arrangement awl promotes more, and changing device comprises stem nut (1), valve rod (2), bearing cap (3), bearing 1(4), bearing seat (5), locating piece (6), crossover sub (7), bonnet, (9), contiguous block (12), supporting seat (14); Described bonnet, (9) upper end tightens together with crossover sub (7) lower end; Described locating piece (6) is screwed in crossover sub (7) upper end, and locating piece (6) is gone up the plane and is not higher than crossover sub (7) upper surface, and crossover sub (7) upper end tightens together with bearing seat (5) lower end; The periphery of described stem nut (1) has a circle defining flange, by bearing 1(4) be supported on the bearing seat (5), and spacing by bearing cap (3), bearing cap (3) is fixed on the bearing seat (5), and be placed on the stem nut (1), make integral body form a straight barrel; In the endoporus of described bonnet, (9) upper end, O-ring seal (8) is set, bonnet, (9) upper end endoporus, crossover sub (7), locating piece (6), bearing seat (5) are passed until stem nut (1) in valve rod (2) upper end, form the screw thread rotation pair with stem nut (1); In described valve rod (2) both sides, stage casing plane of orientation (25) is set, closely cooperates, to prevent valve rod (2) rotation with locating piece (6); Described valve rod (2) lower end is connected with supporting seat (14);
The bonnet, (9) that described V-arrangement awl promotes on the changing device more is contained on the valve body (19) with bolt (23), and between bonnet, (9) and the valve body (19) cavity (24) is set, valve rod that is connected and fixed (2) and supporting seat (14) put in the described cavity (24), supporting seat (14) is put in the radial location through hole of valve body (19), and seal with O-ring seal (20), the bottom of supporting seat (14) is provided with connecting pin (17), the welding of connecting pin (17) lower end is V-arrangement awl (16) fixedly, and V-arrangement awl (16) is positioned in the shaft core position of valve body (19) fluid through-hole;
Position near V-arrangement awl (16) front-end and back-end on the wall of described valve body (19) offers left pressure port (15) and right pressure port (28), is connected stop valve (29) and pressure difference transmitter (30) at left pressure port (15) respectively with right pressure port (28) outside;
Described blind rams group is installed on the two side of bottom of described cavity (24), and it has blind rams (35), laterally turn-offs cavity (24) during work;
Equalizing valve (21) and air release (11) are set on described valve body (19), equalizing valve (21) pore one end communicates with the valve body fluid pipeline, one end communicates with described cavity (24), and the duct position that communicates with cavity (24) is on described blind rams valve group position; The vent port position of described air release (11) also is arranged on the blind rams valve group position;
The diameter of described cavity (24) is greater than the length of V-arrangement awl (16), and height is greater than the maximum gauge of V-arrangement awl (16) and the thickness sum of blind rams (35) and supporting seat (14).
2. gas oil stream measurement amount according to claim 1 is bored restriction device with valve formula V, it is characterized in that: described blind rams group also comprises flashboard axis (33), screw mandrel (31), nut (36), bearing 2(32) and side door (38), by side door bolt (37) side door (38) is connected in the opening part of both sides before and after the valve body (19), between with O-ring seal (39) sealing; One end of the non-tight end of described blind rams (35) and flashboard axis (33) adopts T-slot (41) to flexibly connect, the other end of flashboard axis (33) adopts with screw mandrel (31) and is threaded, the periphery of screw mandrel (31) has a circle defining flange, by bearing 2(32) be supported on the side door (38), and stretch out in side door (38) outer nut (36) and be fixed in side door (38) outside with thread forms, and be enclosed within on the screw mandrel (31), spacing to screw mandrel (31); Between described side door (38) and flashboard axis (33), O-ring seal (39) is set, radial seal flashboard axis (33); Go up sulfuration caulking gum (40) at described blind rams (35), realize the flashboard soft seal.
3. gas oil stream measurement amount according to claim 1 is bored restriction device with valve formula V, it is characterized in that: the maximum outside diameter place design of described V-arrangement awl (16) has the cylinder transition section (42) that equates with maximum outside diameter.
4. gas oil stream measurement amount according to claim 1 is bored restriction device with valve formula V, it is characterized in that: described valve rod (2) lower end connects supporting seat (14) by contiguous block (12), valve rod (2) is fixing with contiguous block (12) welding, and contiguous block (12) is connected fastening with supporting seat (14) with bolt (13).
5. gas oil stream measurement amount according to claim 1 is bored restriction device with valve formula V, it is characterized in that: described connecting pin (17) passes supporting seat (14) center pit and is fixed on the supporting seat (14) with nut (22), connecting pin (17) middle part is square, cooperate with the square opening on the supporting seat (14), V-arrangement awl (16) and connecting pin (17) welding, and between V-arrangement awl (16) and connecting pin (17), radial direction seal ring (18) is set.
6. gas oil stream measurement amount according to claim 1 is bored restriction device with valve formula V, it is characterized in that: the bonnet, (9) that described V-arrangement awl promotes on the changing device more adopts flange form to be connected fastening structure with valve body (19), between usefulness O-ring seal (10) seal.
7. gas oil stream measurement amount according to claim 1 is bored restriction device with valve formula V, it is characterized in that: design has step with Dou face (26) on the hole wall of the radial location through hole of described valve body (19) last installation supporting seat (14), corresponding periphery at supporting seat (14) has also designed step with the Dou face, and both closely cooperate.
8. gas oil stream measurement amount according to claim 1 is bored restriction device with valve formula V, it is characterized in that: described valve body (19) two ends adopt flange to be connected fastening with bolt with oil and gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105553597A CN102032931B (en) | 2010-12-14 | 2010-12-14 | Valve-type-V-cone throttling device for measuring operation flow of petroleum and gas extraction and transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105553597A CN102032931B (en) | 2010-12-14 | 2010-12-14 | Valve-type-V-cone throttling device for measuring operation flow of petroleum and gas extraction and transportation |
Publications (2)
| Publication Number | Publication Date |
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| CN102032931A true CN102032931A (en) | 2011-04-27 |
| CN102032931B CN102032931B (en) | 2012-06-27 |
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| CN2010105553597A Expired - Fee Related CN102032931B (en) | 2010-12-14 | 2010-12-14 | Valve-type-V-cone throttling device for measuring operation flow of petroleum and gas extraction and transportation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110530436A (en) * | 2018-05-23 | 2019-12-03 | 中国石油天然气股份有限公司 | Differential pressure type metering device, flow metering method, device and storage medium |
| CN116295699A (en) * | 2023-05-12 | 2023-06-23 | 山东立轩测控设备有限公司 | Plug-in V-cone flowmeter mounting structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110530436A (en) * | 2018-05-23 | 2019-12-03 | 中国石油天然气股份有限公司 | Differential pressure type metering device, flow metering method, device and storage medium |
| CN116295699A (en) * | 2023-05-12 | 2023-06-23 | 山东立轩测控设备有限公司 | Plug-in V-cone flowmeter mounting structure |
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