CN208953029U - Vortex street throttling integral type gas-liquid biphase flowmeter - Google Patents
Vortex street throttling integral type gas-liquid biphase flowmeter Download PDFInfo
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- CN208953029U CN208953029U CN201821361299.3U CN201821361299U CN208953029U CN 208953029 U CN208953029 U CN 208953029U CN 201821361299 U CN201821361299 U CN 201821361299U CN 208953029 U CN208953029 U CN 208953029U
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- 239000007788 liquid Substances 0.000 title claims abstract description 81
- 230000001702 transmitter Effects 0.000 claims abstract description 52
- 239000012530 fluid Substances 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 239000000523 sample Substances 0.000 claims abstract description 18
- 210000003800 Pharynx Anatomy 0.000 claims abstract description 17
- 230000003068 static Effects 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000010079 rubber tapping Methods 0.000 abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005514 two-phase flow Effects 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035695 Efflux Effects 0.000 description 1
- 210000001513 Elbow Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The utility model provides vortex street throttling integral type gas-liquid biphase flowmeter, including intelligent differential pressure flow transmitter and vortex street throttling measuring device, vortex street throttling measuring device are connected to intelligent differential pressure flow transmitter by connecting pipe；Vortex street throttling measuring device includes swirl generating body, the vortex street temperature integrated detection probe for detecting vortex frequency and fluid temperature (F.T.)；Swirl generating body is mounted at vortex street throttling measuring device throat, and vortex street temperature integrated detection probe is inserted at throat.The utility model merges restriction flowmeter with vortex-shedding meter constructional depth, reduce flowmeter entire length, simplify structure, vortex-shedding meter and restriction flowmeter fluid being measured is set to be in uniform pressure, temperature case system, the consistency for guaranteeing the surveyed operating condition flow of the two, improves fluid-mixing density, gas-liquid flow measurement precision；Simultaneously by vortex street sensor and temperature sensor integrated design, pipeline tapping and number of sensors are reduced, structure is further simplified.
Description
Technical field
The utility model belongs to flow measurement technology field, and in particular to the vortex street throttling integral type gas-liquid applied to gas well
Two-phase flow meter.
Background technique
Traditional gas field one-well metering mainly uses gas-liquid separation metering process, and process is complicated, and investment is high.In recent years, state
Interior gas field applies all kinds of gas-liquid two-phases and does not separate metering device, is directly used in the metering of gas well mouth gas-liquid two-phase, such as domestic special
A kind of taper orifice plate gas-liquid biphase flowmeter (ZL201420671672.0) of benefit, the flowmeter pass through measuring diaphragm differential pressure fluctuation width
The angle value relative variance of differential pressure square root (calculate) calculates liquid holdup, and then obtains gas-liquid flow, but since fluid machinery is miscellaneous
The factors such as matter, airflow fluctuation, differential pressure pick-up precision influence, and differential pressure fluctuation range value cannot reflect liquid holdup completely, cause to count
It measures error to increase, restricted application, while cost of investment is high.
Utility model content
The utility model provides a kind of vortex street throttling integral type gas-liquid biphase flowmeter and its application method, purpose first is that
In the unseparated situation of gas-liquid, gas-liquid flow measurement precision is improved, obtains the single-phase flow value of accurate gas-liquid；Purpose is second is that simplify
The structure of flowmeter reduces cost of investment.
For this purpose, the utility model provides vortex street throttling integral type gas-liquid biphase flowmeter, including the intelligence laid up and down
Differential flow converter and vortex street throttling measuring device, the vortex street throttling measuring device includes horizontal positioned choke manifold,
The both ends of choke manifold pass through two connecting pipes respectively and are connected to intelligent differential pressure flow transmitter；On the tube wall of the choke manifold
Vortex street temperature transmitter is installed, vortex street temperature transmitter is connect by signal wire with intelligent differential pressure flow transmitter；
The vortex street throttling measuring device acquisition passes through the vortex frequency and fluid temperature (F.T.) that the fluid of choke manifold generates, and
It is transferred to vortex street temperature transmitter, intelligent differential pressure flow transmitter is transferred to by signal wire after the processing of vortex street temperature transmitter,
Intelligent differential pressure flow transmitter acquires the front and back pressure difference and static pressure signal of choke manifold, intelligent differential pressure flow by connecting pipe simultaneously
Transmitter calculates the single-phase flow of gas-liquid according to collected vortex frequency, fluid temperature (F.T.), differential pressure and static pressure signal.
The vortex street throttling measuring device further includes swirl generating body, the vortex street for detecting vortex frequency and fluid temperature (F.T.)
Temperature integrated detection probe, differential pressure pressure port；The choke manifold inner cavity is Venturi tube structure, and swirl generating body is mounted on text
At throat in mound in the middle part of structure, vortex street temperature integrated detection probe is located at swirl generating body downstream and probe one end and vertically inserts
Enter at throat, the other end is connect with vortex street temperature transmitter, and the differential pressure pressure port is for connecting connecting pipe.
The vortex street temperature integrated detection probe by vortex signal detection sensor and temperature sensor integrative packaging,
For detecting vortex frequency and fluid temperature (F.T.).
The swirl generating body is triangle rod structure, is vertically installed at the throat of choke manifold, and triangular prism is upper and lower
Two end faces are contacted with the inner tubal wall of choke manifold.
Pressure measuring valve is installed on the connecting pipe.
The both ends of the choke manifold are installed with flange, and differential pressure pressure port is provided on two flanges, one end of connecting pipe
It is connected in choke manifold by differential pressure pressure port, the other end of connecting pipe is connected to intelligent differential pressure flow transmitter.
The differential pressure pressure port is provided on the outer wall of choke manifold both ends, and one end of connecting pipe is connected to by differential pressure pressure port
To choke manifold, the other end of connecting pipe is connected to intelligent differential pressure flow transmitter.
The application method of vortex street throttling integral type gas-liquid biphase flowmeter: vortex street throttling integral type gas-liquid biphase flowmeter
The upstream nozzle of choke manifold is connected to gas well mouth by upstream line, and block valve is installed on the upstream line, throttling
The downstream nozzle of pipeline is connected to flow line by downstream line, is installed with gate valve on the downstream line；
The gas-liquid two-phase fluid come out from gas well mouth passes through vortex street throttling integral type gas-liquid after upstream line, block valve
Two-phase flow meter, gas-liquid two-phase fluid generates differential pressure before and after choke manifold, while vortex is generated after swirl generating body, whirlpool
Street temperature integrated detection probe detects vortex frequency and fluid temperature (F.T.) and is transferred to intelligence after handling by vortex street temperature transmitter
Energy differential flow converter, while intelligent differential pressure flow transmitter passes through the front and back pressure difference and static pressure that connecting pipe acquires choke manifold
Signal, intelligent differential pressure flow transmitter calculate gas-liquid according to collected vortex frequency, fluid temperature (F.T.), differential pressure and static pressure signal
Single-phase flow.
The integral type gas-liquid biphase flowmeter the utility model has the beneficial effects that this vortex street provided by the utility model throttles
And its application method, restriction flowmeter is merged with vortex-shedding meter constructional depth, is designed to vortex street throttling integral type gas-liquid
Two-phase flow meter reduces flowmeter entire length, simplifies structure, is in vortex-shedding meter and restriction flowmeter fluid being measured
Uniform pressure, temperature case system guarantee the consistency of the surveyed operating condition flow of the two, are conducive to improve fluid-mixing density, gas
Flow quantity measurement accuracy；Simultaneously by vortex street sensor and temperature sensor integrated design, pipeline tapping and sensor number are reduced
Amount, is further simplified structure；And combine two kinds of flowmeter measuring principles, gas-liquid mixture fluid averag density is calculated, in turn
Obtain the single-phase flow of gas-liquid.
The utility model is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of vortex street throttling integral type gas-liquid biphase flowmeter.
Fig. 2 is the structural schematic diagram of vortex street throttling measuring device.
Fig. 3 is the installation block diagram of vortex street throttling integral type gas-liquid biphase flowmeter.
Description of symbols: 1. flanges；2. pressure measuring valve；3. connecting pipe；The measuring device 4. vortex street throttles；5. vortex street temperature becomes
Send device；6. intelligent differential pressure flow transmitter；7. signal wire；8. choke manifold；9. swirl generating body；10. vortex street temperature integration
Detection probe；11. differential pressure pressure port；12. upstream line；13. block valve；14. downstream line；15. gate valve；16. gas well mouth；
The integral type gas-liquid biphase flowmeter 17. vortex street throttles；801. throat.
Specific embodiment
Embodiment 1:
A kind of vortex street throttling integral type gas-liquid biphase flowmeter is present embodiments provided, (arrow is liquid in figure as shown in Figure 1
Body flow direction), including the intelligent differential pressure flow transmitter 6 laid up and down and vortex street throttling measuring device 4, the vortex street throttling
Measuring device 4 includes horizontal positioned choke manifold 8, and the both ends of choke manifold 8 pass through two connecting pipes 3 respectively and are connected to intelligence
Differential flow converter 6；Vortex street temperature transmitter 5 is installed, vortex street temperature transmitter 5 is logical on the tube wall of the choke manifold 8
Signal wire 7 is crossed to connect with intelligent differential pressure flow transmitter 6；
The working principle of vortex street throttling integral type gas-liquid biphase flowmeter is as follows:
The vortex street throttling acquisition of measuring device 4 passes through the vortex frequency and fluid temperature (F.T.) that the fluid of choke manifold 8 generates,
And it is transferred to vortex street temperature transmitter 5, the change of intelligent differential pressure flow is transferred to by signal wire 7 after the processing of vortex street temperature transmitter 5
Device 6 is sent, while intelligent differential pressure flow transmitter 6 acquires the front and back pressure difference and static pressure signal of choke manifold 8, intelligence by connecting pipe 3
Energy differential flow converter 6 calculates gas-liquid single-phase flow according to collected vortex frequency, fluid temperature (F.T.), differential pressure and static pressure signal
Amount.
It should be strongly noted that intelligent differential pressure flow transmitter 6 is differential pressure transmitter secondary development, and by traditional stream
Amount calculating instrument modularization is built in transmitter, acquires differential pressure, static pressure signal, while receiving the offer of vortex street temperature transmitter 5
Vortex frequency and fluid temperature signal have signal processing, gas-liquid flow rate calculation and display function.Vortex street temperature transmitter 5 will
The vortex frequency signal and fluid temperature signal that vortex street temperature integrated detection probe 10 acquires are handled, and pass through signal wire
Vortex frequency and temperature signal are transmitted to intelligent differential pressure flow transmitter 6 using RS485 communication modes by 7.
The present embodiment is designed to vortex street throttling one by merging restriction flowmeter with vortex-shedding meter constructional depth
Formula gas-liquid biphase flowmeter makes vortex-shedding meter and restriction flowmeter fluid being measured be in uniform pressure, temperature case system,
The consistency for guaranteeing the surveyed operating condition flow of the two is conducive to improve fluid-mixing density, gas-liquid flow measurement precision.Solve gas well
Gas-liquid two-phase on-line metering problem, instead of traditional separate measurement technique, simplification of flowsheet reduces investment.
Embodiment 2:
On the basis of embodiment 1, as shown in Figure 2 (arrow is liquid flow direction in figure), the vortex street throttling measurement
Device 4 further include swirl generating body 9, the vortex street temperature integrated detection probe 10 for detecting vortex frequency and fluid temperature (F.T.),
Differential pressure pressure port 11；8 inner cavity of choke manifold is Venturi tube structure, and swirl generating body 9 is mounted in the middle part of Venturi tube structure
At throat 801, vortex street temperature integrated detection probe 10 is located at 9 downstream of swirl generating body and probe one end and is perpendicularly interposed in throat
At 801, the other end is connect with vortex street temperature transmitter 5, and the differential pressure pressure port 11 is for connecting connecting pipe 3.
Specifically, choke manifold 8 is modified Venturi tube structure, it is symmetrical about waist center line, as shown in Fig. 2,
Middle section is throat 801, and it is straight tube pipe in the end of tubaeform pipeline section that the both ends of throat 801, which are tubaeform pipeline sections expanding outward,
Section.In the present embodiment, it throat 801 is extended, is visited for the ease of installation swirl generating body 9 and vortex street temperature integration detection
First 10；Differential pressure pressure port 11 is connected by connecting pipe 3, pressure measuring valve 2 with intelligent differential pressure flow transmitter 6, and measurement vortex street throttling is surveyed
Measure 4 front and back differential pressure of device and static pressure signal.
Particularly, vortex street throttling measuring device 4 is by restriction flowmeter (choke manifold 8) and vortex-shedding meter (vortex hair
Raw body 9) depth integration, it is designed to vortex street throttling integral type gas-liquid biphase flowmeter, reduces flowmeter entire length, simplify knot
Structure makes vortex-shedding meter and restriction flowmeter fluid being measured be in uniform pressure, temperature case system, guarantees the surveyed work of the two
The consistency of condition flow is conducive to improve fluid-mixing density, gas-liquid flow measurement precision.
Embodiment 3:
On the basis of embodiment 2, the vortex street temperature integrated detection probe 10 by vortex signal detection sensor and
Temperature sensor integrative packaging, for detecting vortex frequency and fluid temperature (F.T.).
Vortex street sensor and temperature sensor integrated design are reduced pipeline tapping and number of sensors by the present embodiment,
It is further simplified structure.
Embodiment 4:
On the basis of embodiment 2, the swirl generating body 9 is triangle rod structure, is vertically installed at shouting for choke manifold 8
At road 801, and two end faces up and down of triangular prism are contacted with the inner tubal wall of choke manifold 8.
Swirl generating body 9 is the core component of vortex-shedding meter, its major function is that vortex is forced axially to generate
Three-dimensional pipe stream is become two-dimensional bumpy flow by separated in synchronization, and specifically, swirl generating body 9 is vertically installed at throttling set and shouts
In road 801, fluid passes through from 9 two sides of swirl generating body, and face generates the vortex of certain frequency behind.
Embodiment 5:
On the basis of embodiment 1, pressure measuring valve 2 is installed on the connecting pipe 3.It installs at the both ends of the choke manifold 8
Flange 1, differential pressure pressure port 11 be provided on two flanges 1, one end of connecting pipe 3 is connected to throttling by differential pressure pressure port 11
In pipeline 8, the other end of connecting pipe 3 is connected to intelligent differential pressure flow transmitter 6.Specifically, as shown in Figure 1, differential pressure pressure port
11 are provided on 8 both ends outer wall of choke manifold, and one end of connecting pipe 3 is connected in choke manifold 8 by differential pressure pressure port 11, lead
The other end of pressure pipe 3 is connected to intelligent differential pressure flow transmitter 6.
Embodiment 6:
As shown in figure 3, the application method of vortex street throttling integral type gas-liquid biphase flowmeter: vortex street throttling integral type gas-liquid two
The upstream nozzle of the choke manifold 8 of multi-phase flowmeter is connected to gas well mouth by upstream line 12, pacifies on the upstream line 12
It is filled with block valve 13, the downstream nozzle of choke manifold 8 is connected to flow line, the downstream line 14 by downstream line 14
On gate valve 15 is installed；
The gas-liquid two-phase fluid come out from gas well mouth is throttled integral type after upstream line 12, block valve 13 by vortex street
Gas-liquid biphase flowmeter, gas-liquid two-phase fluid generates differential pressure before and after choke manifold 8, while generating after swirl generating body 9
Vortex, vortex street temperature integrated detection probe 10 detect vortex frequency and fluid temperature (F.T.) and are handled by vortex street temperature transmitter 5
After be transferred to intelligent differential pressure flow transmitter 6, while intelligent differential pressure flow transmitter 6 acquires choke manifold 8 by connecting pipe 3
Front and back pressure difference and static pressure signal, intelligent differential pressure flow transmitter 6 is according to collected vortex frequency, fluid temperature (F.T.), differential pressure and quiet
Signal is pressed, the single-phase flow of gas-liquid is calculated.
For the gas-liquid two-phase fluid come out from Wellbore of Gas Wells by this flowmeter after a series of elbows, valve, fluid can be
Generate differential pressure before and after throttling set, generate vortex after swirl generating body 9, by measurement vortex frequency, fluid temperature (F.T.), differential pressure,
Static pressure signal can measure fluid volume flow using vortex-shedding meter flow rate calculation formula, due to restriction flowmeter and whirlpool
Street flow is calculated as same Measurement channel, be same pressure and temp system, therefore the two institute measurement of discharge answer it is equal.Using throttle type stream
The volume flow that meter flow rate calculation formula and vortex-shedding meter calculate counter can release gas-liquid mixture fluid averag density.?
Under the premise of knowing gas-liquid single-phase density, each phase flow rate of gas-liquid can be derived.Specifically, the step of calculating gas-liquid single-phase flow is wrapped
It includes:
When gas-liquid two-phase fluid is by triangle cylindrical swirl generating body 9, two column vortexs, vortex are alternately produced in its two sides
Release frequency it is related with fluid average speed, fluid mean flow rate v is calculated according to formula (1),
(1)
In above formula, f is that the vortex that vortex street temperature integrated detection probe 10 detects discharges frequency, and v is that fluid flows through rotation
The average speed of whirlpool generating body, d are swirl generating body characteristic width, and St is Strouhal number, dimensionless；
The volume flow of gas-liquid two-phase fluid:
(2)
In above formula,For volume flow, d is swirl generating body characteristic width, and f is that vortex discharges frequency, and A is fluid stream
The sectional area of swirl generating body 9 is crossed, St is Strouhal number, dimensionless；
The mass flow of gas-liquid two-phase fluid:
(3)
In above formula,For mass flow, C is efflux coefficient, β be 8 diameter ratio of choke manifold (, D is that throat 801 enters section
Or the pipe diameter of outlet section, d are 801 diameter of throat), ε is the coefficient of expansion, and d is 801 diameter of throat, gas-liquid two-phase fluid
Pressure, known to temperature when, the above parameter can directly be calculated；It is unknown for gas-liquid mixture fluid operating condition averag density
Amount；For differential pressure, measured by intelligent differential pressure flow transmitter (6)；
It is that same pressure while being in by choke manifold 8 since throttle-flow and flux of vortex street are same Measurement channel
At a temperature of power, therefore:
(4)
Gas-liquid mixture fluid averag density can be derived by formula (4) and formula (3):
(5)
When gas-liquid mixed is more uniform, gas-liquid slippage effect is smaller, can not consider gas-liquid current difference, fluid-mixing operating condition body
Product flow is the sum of single-phase operating condition volume flow of air-liquid, and fluid-mixing mass flow is the sum of single-phase mass flow of air-liquid:
(6)
(7)
Known air-liquid mark condition density, according to pressure, temperature parameter you can get it air-liquid operating condition density, by formula (5), (6),
(7) gas and liquid two phases operating condition volume flow can be derived:
(8)
(9)
According to Fluid pressure, temperature parameter, air-liquid mark condition volume flow that you can get it completes the meter of the single-phase flow of gas-liquid
It calculates.
The utility model is designed to vortex street throttling one by merging restriction flowmeter with vortex-shedding meter constructional depth
Body formula gas-liquid biphase flowmeter reduces flowmeter entire length, simplifies structure, surveys vortex-shedding meter and restriction flowmeter
Fluid is in uniform pressure, temperature case system, guarantees the consistency of the surveyed operating condition flow of the two, is conducive to improve fluid-mixing
Density, gas-liquid flow measurement precision；Simultaneously by vortex street sensor and temperature sensor integrated design, pipeline tapping and biography are reduced
Sensor quantity, is further simplified structure；And combine two kinds of flowmeter measuring principles, it is average close to calculate gas-liquid mixture fluid
Degree, and then obtain the single-phase flow of gas-liquid.
Exemplified as above is only to the utility model for example, not constituting to the protection scope of the utility model
Limitation, it is all to be belonged within the protection scope of the utility model with the same or similar design of the utility model.The present embodiment
The well-known components and common structure or conventional means of the component and the structure category industry that do not describe in detail, are not chatted one by one here
It states.
Claims (7)
- The integral type gas-liquid biphase flowmeter 1. vortex street throttles, it is characterised in that: including the intelligent differential pressure flow pick-up laid up and down Device (6) and vortex street throttling measuring device (4), vortex street throttling measuring device (4) includes horizontal positioned choke manifold (8), The both ends of choke manifold (8) pass through two connecting pipes (3) respectively and are connected to intelligent differential pressure flow transmitter (6)；The throttle pipe It is installed on the tube wall in road (8) vortex street temperature transmitter (5), vortex street temperature transmitter (5) passes through signal wire (7) and intelligent differential pressure Flow transmitter (6) connection；Vortex street throttling measuring device (4) acquisition passes through the vortex frequency and fluid temperature (F.T.) that the fluid of choke manifold (8) generates, And vortex street temperature transmitter (5) are transferred to, intelligent differential pressure is transferred to by signal wire (7) after vortex street temperature transmitter (5) processing Flow transmitter (6), while intelligent differential pressure flow transmitter (6) passes through the front and back pressure difference of connecting pipe (3) acquisition choke manifold (8) And static pressure signal, intelligent differential pressure flow transmitter (6) according to collected vortex frequency, fluid temperature (F.T.), differential pressure and static pressure signal, Calculate the single-phase flow of gas-liquid.
- The integral type gas-liquid biphase flowmeter 2. vortex street as described in claim 1 throttles, it is characterised in that: the vortex street throttling is surveyed Amount device (4) further includes swirl generating body (9), the vortex street temperature integration detection spy for detecting vortex frequency and fluid temperature (F.T.) Head (10), differential pressure pressure port (11)；Choke manifold (8) inner cavity is Venturi tube structure, and swirl generating body (9) is mounted on literary mound In at throat (801) in the middle part of structure, vortex street temperature integrated detection probe (10) is located at swirl generating body (9) downstream and probe One end is perpendicularly interposed at throat (801), and the other end is connect with vortex street temperature transmitter (5), and the differential pressure pressure port (11) is used In connection connecting pipe (3).
- The integral type gas-liquid biphase flowmeter 3. vortex street as claimed in claim 2 throttles, it is characterised in that: the vortex street temperature one Body detection probe (10) by vortex signal detection sensor and temperature sensor integrative packaging, for detect vortex frequency and Fluid temperature (F.T.).
- The integral type gas-liquid biphase flowmeter 4. vortex street as claimed in claim 2 throttles, it is characterised in that: the swirl generating body (9) it is triangle rod structure, is vertically installed at the throat (801) of choke manifold (8), and two end faces up and down of triangular prism and section The inner tubal wall in flow tube road (8) contacts.
- The integral type gas-liquid biphase flowmeter 5. vortex street as described in claim 1 throttles, it is characterised in that: the connecting pipe (3) On pressure measuring valve (2) are installed.
- The integral type gas-liquid biphase flowmeter 6. vortex street as claimed in claim 2 throttles, it is characterised in that: the choke manifold (8) both ends are installed with flange (1), and differential pressure pressure port (11) is provided on two flanges (1), and one end of connecting pipe (3) passes through Differential pressure pressure port (11) is connected in choke manifold (8), and the other end of connecting pipe (3) is connected to intelligent differential pressure flow transmitter (6).
- The integral type gas-liquid biphase flowmeter 7. vortex street as claimed in claim 2 throttles, it is characterised in that: the differential pressure pressure port (11) it is provided on the outer wall of choke manifold (8) both ends, one end of connecting pipe (3) is connected to throttle pipe by differential pressure pressure port (11) In road (8), the other end of connecting pipe (3) is connected to intelligent differential pressure flow transmitter (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821361299.3U CN208953029U (en) | 2018-08-23 | 2018-08-23 | Vortex street throttling integral type gas-liquid biphase flowmeter |
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| CN201821361299.3U CN208953029U (en) | 2018-08-23 | 2018-08-23 | Vortex street throttling integral type gas-liquid biphase flowmeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697213A (en) * | 2020-11-14 | 2021-04-23 | 中国石油天然气股份有限公司 | Differential pressure type flowmeter, filling system and method for measuring micro-flow U-shaped pipe |
| CN112833968A (en) * | 2021-01-29 | 2021-05-25 | 江苏华尔威科技集团有限公司 | Wide-range high-temperature-resistant steam two-phase flowmeter |
-
2018
- 2018-08-23 CN CN201821361299.3U patent/CN208953029U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697213A (en) * | 2020-11-14 | 2021-04-23 | 中国石油天然气股份有限公司 | Differential pressure type flowmeter, filling system and method for measuring micro-flow U-shaped pipe |
| CN112833968A (en) * | 2021-01-29 | 2021-05-25 | 江苏华尔威科技集团有限公司 | Wide-range high-temperature-resistant steam two-phase flowmeter |
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