CN220418549U - Integrated wedge-shaped flowmeter - Google Patents
Integrated wedge-shaped flowmeter Download PDFInfo
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- CN220418549U CN220418549U CN202321997969.1U CN202321997969U CN220418549U CN 220418549 U CN220418549 U CN 220418549U CN 202321997969 U CN202321997969 U CN 202321997969U CN 220418549 U CN220418549 U CN 220418549U
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- differential pressure
- wedge
- pressure sensor
- meter body
- mounting base
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- 238000010276 construction Methods 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
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- 238000006243 chemical reaction Methods 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an integrated wedge-shaped flowmeter, which comprises a meter body, wherein an installation base is arranged on the outer wall of the meter body, a differential pressure conduction probe for detecting the pressure value of fluid is arranged below the installation base, the differential pressure conduction probe penetrates through the meter body and is installed on the inner wall of the meter body, a differential pressure sensor is arranged on the installation base and is connected with the differential pressure conduction probe, and the differential pressure sensor is electrically connected with a multi-parameter transmitter for transmitting data information.
Description
Technical Field
The utility model belongs to the technical field of flowmeters, and particularly relates to an integrated wedge-shaped flowmeter.
Background
In the natural gas wellhead metering process, because the medium in the wellhead pipeline is complex (contains mixture such as oil, gas, water and sand), the conventional flowmeter can not adapt to the severe medium condition of the wellhead well, so that the maintenance amount is large, the failure rate is high, and the natural gas wellhead metering process can not be used for a long time almost, and the problem is mainly due to the following reasons:
1. most conventional flow meters cannot overcome solid particles existing in a wellhead gas pipeline, and the actual service life of the flow meter is shortened.
2. Most conventional flow meters cannot overcome the defect that a gas-liquid mixed flow medium exists in a wellhead gas transmission pipeline, metering failure can be caused, and metering data disorder can occur in part of the meters.
3. Most conventional flow meters cannot overcome the problem of oil stain condensation in wellhead gas pipelines, and metering misalignment and even complete blockage of the meters are caused by oil stain condensation.
Therefore, the conventional flowmeter is difficult to adapt to the metering working condition, and a flowmeter for overcoming the technical problems is urgently needed.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an integrated wedge-shaped flowmeter, which comprises the following specific technical scheme:
the utility model provides an integration wedge flowmeter, includes the table body, be equipped with the mounting base on the outer wall of the table body, the below of mounting base is equipped with the differential pressure conduction probe that is used for detecting fluid pressure value, differential pressure conduction probe passes the table body and install on the inner wall of the table body, be equipped with differential pressure sensor on the mounting base just differential pressure sensor with differential pressure conduction probe is connected, differential pressure sensor is connected with multi-parameter transmitter electricity and is used for transmitting data information.
Further, the differential pressure conduction probe comprises wedge blocks with two symmetrical sides, pressure taking holes are symmetrically formed in two side faces of the wedge blocks, and the two pressure taking holes are respectively connected with two ports of the differential pressure sensor through pipelines.
Further, the mounting base is provided with a pressure sensor, a detection probe of the pressure sensor penetrates through the meter body and is mounted on the inner wall of the meter body, and the pressure sensor is also electrically connected with the multi-parameter transmitter and used for transmitting data information.
Further, the mounting base is provided with a temperature sensor, a detection probe of the temperature sensor penetrates through the meter body and is mounted on the inner wall of the meter body, and the temperature sensor is also electrically connected with the multi-parameter transmitter and used for transmitting data information.
Further, a conduit is arranged above the mounting base, a junction box is arranged at the upper end of the conduit, and the multi-parameter transmitter is mounted above the junction box.
Further, the conduit and the junction box are both hollow structures and the conduit communicates with the interior of the junction box.
Further, a detachable mounting cover is arranged on one side face of the junction box.
Furthermore, the meter body is of a tubular structure, and flanges connected with the pipeline are arranged at two ends of the meter body.
Further, the wedge block is made of metal.
Further, a filter screen is arranged in the pressure taking hole.
The utility model has the beneficial effects that: the wedge block is arranged above the pipe wall, so that accumulation of oil stains is better avoided, and long-term cleaning can be achieved. The wedge block is generally made of high-strength alloy, has a simple structure and can well overcome solid particle impact in a pipeline. Because the filter screen is installed at the pressure taking hole opening parts on two sides of the wedge block, and the air chamber with enough large upper part is arranged, the huge fluctuation of the differential pressure value caused by the mixed flow of the air and the liquid can be well avoided, so that the metering data is stable and reliable, and the abnormal problems of large flow fluctuation, unstable numerical value and the like are hardly caused. The metering problem of the natural gas wellhead on site is perfectly solved.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic illustration of the arcuate area of a wedge block of the present utility model;
fig. 3 is an AD conversion circuit diagram of the present utility model;
FIG. 4 is a circuit diagram of a thermal resistance temperature sensor acquisition circuit of the present utility model;
FIG. 5 is a schematic diagram of differential and static pressure sensor acquisition circuitry in accordance with the present utility model.
In the figure: the meter body 1, the differential pressure conduction probe 2, the mounting base 3, the pressure sensor 4, the temperature sensor 5, the conduit 6, the junction box 7, the multi-parameter transmitter 8 and the differential pressure sensor 9.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the integrated wedge-shaped flowmeter provided by the utility model comprises a meter body 1, wherein an installation base 3 is arranged on the outer wall of the meter body 1, a differential pressure conduction probe 2 for detecting the pressure value of fluid is arranged below the installation base 3, the differential pressure conduction probe 2 penetrates through the meter body 1 and is arranged on the inner wall of the meter body 1, a differential pressure sensor 9 is arranged on the installation base 3, the differential pressure sensor 9 is connected with the differential pressure conduction probe 2, and the differential pressure sensor 9 is electrically connected with a multi-parameter transmitter 8 and is used for transmitting data information.
The differential pressure conduction probe 2 comprises wedge blocks with two symmetrical sides, pressure taking holes are symmetrically formed in two side faces of the wedge blocks, the two pressure taking holes are respectively connected with two ports of the differential pressure sensor 9 through pipelines, and filter screens are arranged in the pressure taking holes.
The mounting base 3 is provided with a pressure sensor 4, a detection probe of the pressure sensor 4 penetrates through the meter body 1 and is mounted on the inner wall of the meter body 1, and the pressure sensor 4 is also electrically connected with the multi-parameter transmitter 8 for transmitting data information; the mounting base 3 is provided with a temperature sensor 5, a detection probe of the temperature sensor 5 penetrates through the meter body 1 and is mounted on the inner wall of the meter body 1, and the temperature sensor 5 is also electrically connected with the multi-parameter transmitter 8 for transmitting data information.
As shown in fig. 3-5, in this embodiment, the temperature sensor 5, the pressure sensor 4 and the differential pressure sensor 4 respectively collect the temperature of the fluid in the meter body 1, the pressure difference between two ends of the wedge-shaped block and the pressure data of the fluid in the meter body 1 through corresponding probes and collecting circuits, and then perform analog-to-digital conversion through the AD conversion circuit shown in fig. 3, so as to transmit digital signals to the multi-parameter transmitter 8, and the multi-parameter transmitter 8 obtains flow counts through the collected data;
the differential pressure (differential pressure Δp) across the wedge as the medium flows, i.e. the pressures upstream and downstream of the wedge, are inconsistent, and because of the compressibility of the gas, the conversion of mass flow to volumetric flow of the gas also requires temperature and pressure values and the differential pressure of the natural gas component (which is used to calculate the natural gas standard density) to flow, which is a mathematical relationship with the mass flow of the medium that is a flow measurement based on the law of conservation of energy, bernoulli's equation and flow continuity equation. When the measured medium flows through the throttling element in a wedge shape, differential pressure deltap is generated at two sides of the throttling element and is acquired by a differential pressure sensor 9, and the flow of the fluid is determined by measuring the differential pressure according to the relation between the differential pressure and the flow.
The metering equation is as follows:
wherein: q v Volumetric flow, m 3 S; c-the outflow coefficient; epsilon-coefficient of expansibility; m-the ratio of the throttle area,d, the inner diameter of the pipeline, m; s-arcuate flow area, m 2 The method comprises the steps of carrying out a first treatment on the surface of the Δp—differential pressure, pa; ρ -measured Medium Density, kg/m 3 。
Referring to fig. 2, an arcuate area schematic (unshaded region) is shown and the arcuate flow area is calculated as follows:
wherein: l=0.01745 ra
The flow in the meter body flowing through the pressure data acquired by the pressure taking holes on the two side surfaces of the wedge block and the temperature and pressure data of the fluid in the meter body 1 are directly obtained.
A conduit 6 is arranged above the mounting base 3, a junction box 7 is arranged at the upper end of the conduit 6, and a multi-parameter transmitter 8 is arranged above the junction box 7; the conduit 6 and the junction box 7 are of hollow structures, the conduit 6 is communicated with the inside of the junction box 7 and used for placing data wires of a differential pressure sensor, a temperature sensor and a pressure sensor, a detachable mounting cover is arranged on one side surface of the junction box 7, connection of the multi-parameter transmitter 8 and interfaces of electronic components is facilitated, and later maintenance and repair are facilitated.
The meter body 1 is of a tubular structure, and flanges connected with pipelines are arranged at two ends of the meter body 1.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; combinations of features of the above embodiments or of different embodiments are possible within the spirit of the utility model, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity, wherein the multi-parameter transmitter is a prior art product; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The utility model provides an integration wedge flowmeter, its characterized in that, includes the table body (1), be equipped with mounting base (3) on the outer wall of table body (1), the below of mounting base (3) is equipped with differential pressure conduction probe (2) that are used for detecting fluid pressure value, differential pressure conduction probe (2) pass table body (1) and install on the inner wall of table body (1), be equipped with differential pressure sensor (9) on mounting base (3) just differential pressure sensor (9) with differential pressure conduction probe (2) are connected, differential pressure sensor (9) are connected with multi-parameter transmitter (8) electricity and are used for transmitting data information.
2. An integrated wedge flowmeter according to claim 1, wherein said differential pressure conducting probe (2) comprises two symmetrical wedge blocks, pressure taking holes are symmetrically arranged on two sides of said wedge blocks, and two of said pressure taking holes are respectively connected with two ports of said differential pressure sensor (9) through pipelines.
3. An integrated wedge flowmeter according to claim 1, characterized in that said mounting base (3) is provided with a pressure sensor (4), a detection probe of said pressure sensor (4) passing through said meter body (1) and being mounted on an inner wall of said meter body (1), said pressure sensor (4) also being electrically connected to said multi-parameter transmitter (8) for transmitting data information.
4. An integrated wedge flowmeter according to claim 1, characterized in that the mounting base (3) is fitted with a temperature sensor (5), the detection probe of said temperature sensor (5) passing through said meter body (1) and being mounted on the inner wall of said meter body (1), said temperature sensor (5) also being electrically connected with said multi-parameter transmitter (8) for transmitting data information.
5. An integrated wedge flowmeter according to claim 1, characterized in that a conduit (6) is provided above the mounting base (3), a junction box (7) is provided at the upper end of the conduit (6), and the multi-parameter transmitter (8) is mounted above the junction box (7).
6. An integrated wedge flowmeter according to claim 5, characterized in that said conduit (6) and said junction box (7) are both hollow and said conduit (6) is in communication with the interior of said junction box (7).
7. An integrated wedge flowmeter according to claim 5, wherein said junction box (7) is provided with a removable mounting cap on one side.
8. An integrated wedge flowmeter according to claim 1, wherein said meter body (1) is of tubular construction and is provided with flanges at both ends for connection to a pipe.
9. The integrated wedge flow meter of claim 2 wherein said wedge is a metallic material.
10. An integrated wedge flow meter as claimed in claim 2 wherein said pressure tap is internally provided with a filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321997969.1U CN220418549U (en) | 2023-07-27 | 2023-07-27 | Integrated wedge-shaped flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321997969.1U CN220418549U (en) | 2023-07-27 | 2023-07-27 | Integrated wedge-shaped flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220418549U true CN220418549U (en) | 2024-01-30 |
Family
ID=89653923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321997969.1U Active CN220418549U (en) | 2023-07-27 | 2023-07-27 | Integrated wedge-shaped flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220418549U (en) |
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2023
- 2023-07-27 CN CN202321997969.1U patent/CN220418549U/en active Active
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