CN209745461U - Integrated double-differential-pressure-taking gas-liquid two-phase flow measuring device for eccentric orifice plate - Google Patents
Integrated double-differential-pressure-taking gas-liquid two-phase flow measuring device for eccentric orifice plate Download PDFInfo
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- CN209745461U CN209745461U CN201920895469.4U CN201920895469U CN209745461U CN 209745461 U CN209745461 U CN 209745461U CN 201920895469 U CN201920895469 U CN 201920895469U CN 209745461 U CN209745461 U CN 209745461U
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Abstract
The utility model discloses an eccentric orifice plate gas-liquid two-phase flow measuring device of two differential pressure fetches pressure of integral type, including two differential pressure fetches pressure transmitter of integral type and eccentric orifice plate, inside the eccentric orifice plate was located the measurement pipeline, and eccentric orifice plate and measurement pipeline inner wall fixed connection, be equipped with first fetch pressure department, second fetch pressure department and third fetch pressure department in the measurement pipeline, first fetch pressure department, second fetch pressure department and third fetch pressure department all are equipped with and fetch pressure ring room, first fetch pressure department is located eccentric orifice plate upstream pipeline. The utility model discloses a set up eccentric orifice plate, can utilize the circular through-hole on the eccentric orifice plate to throttle to gas-liquid to get through first department of getting pressure, second department of getting pressure and third department of getting pressure respectively and get pressure, realize the measurement of two different differential pressure values, through the differential pressure value of these two differences, utilize relevant algorithm, can calculate the relevant flow parameter of gas phase and liquid phase in the gas-liquid two-phase flow, measure the precision height.
Description
Technical Field
The utility model relates to a flow measurement correlation technique field specifically is a double differential pressure of two differential pressure of integral type gets eccentric orifice plate gas-liquid double-phase flow measuring device of pressure.
Background
Two-phase flow, which is broadly referred to as flow of one or two substances in different states, in which gas and liquid flow together is referred to as gas-liquid two-phase flow, and gas-liquid two-phase flow, which is one of multiphase flow, widely exists in the fields of natural gas, petroleum, chemical industry, nuclear energy, aerospace, and the like, and unlike single-phase flow, gas-liquid two-phase flow contains both gas and liquid, and when measuring gas-liquid two-phase flow, a special measuring device is required.
however, the conventional gas-liquid two-phase flow rate measuring device has the following disadvantages: due to the difference of physical properties such as density, viscosity and the like between the phases; meanwhile, under the influence of a plurality of working condition factors such as gravity, temperature, pressure, split-phase flow and the like, the detection difficulty of gas-liquid two-phase flow parameters is very high, so that the measurement result is easily influenced, and improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an integrated double differential pressure tapping eccentric orifice plate gas-liquid two-phase flow measuring device, which is used for solving the problem that the difference of physical properties such as density, viscosity and the like exists among phases in the background technology; meanwhile, under the influence of various working condition factors such as gravity, temperature, pressure, split-phase flow and the like, the detection difficulty of gas-liquid two-phase flow parameters is very high, so that the measurement result is easily influenced.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an eccentric orifice plate gas-liquid two-phase flow measuring device that two differential pressures of integral type were got pressure, includes two differential pressure transmitters of integral type and eccentric orifice plate, eccentric orifice plate is located inside the measurement pipeline, and eccentric orifice plate and measurement pipeline inner wall fixed connection, be equipped with first department, second department and the third department of getting pressure in the measurement pipeline, first department, second department and the third department of getting pressure all are equipped with gets the pressure ring room, first department of getting pressure is located eccentric orifice plate upstream pipeline, second department and the third department of getting pressure set gradually in eccentric orifice plate downstream pipeline, be equipped with six valves on the two differential pressure transmitters of integral type, and two differential pressure transmitter one side of integral type is connected with the pressure pipe.
Preferably, the throttling part of the eccentric orifice plate faces the lower part of the horizontal pipeline, the distance from the first pressure taking position to the upstream end face of the eccentric orifice plate is 0.5-1 times of the inner diameter of the pipeline, the distance from the second pressure taking position to the downstream end face of the eccentric orifice plate is 0.5-2 times of the inner diameter of the pipeline, and the distance from the third pressure taking position to the downstream end face of the eccentric orifice plate is 5-9 times of the inner diameter of the pipeline.
Preferably, an integrated double differential pressure transmitter is provided.
The utility model provides a double-phase flow measuring device of eccentric orifice plate gas-liquid of two differential pressure fetches pressure of integral type possesses following beneficial effect:
the utility model discloses a set up eccentric orifice plate, can make the gas-liquid through eccentric orifice plate pass through the other end of the circular through-hole flow direction measurement pipeline on the eccentric orifice plate, utilize eccentric orifice plate to carry out the throttle, make the pressure value of the gas-liquid of eccentric orifice plate both sides change, upstream pipeline and the low reaches pipeline at eccentric orifice plate place set up first department of getting pressure respectively simultaneously, second department of getting pressure and third department of getting pressure, can be through first department of getting pressure, second department of getting pressure and third department of getting pressure get pressure respectively, realize different differential pressure value's measurement, through different differential pressure values, utilize relevant algorithm, can calculate the relevant flow parameter of gas phase and liquid phase in the gas-liquid two-phase flow, and is simple in operation, and convenient to use.
Different from the traditional differential pressure transmitter which can only measure one differential pressure value, the measurement of two differential pressure values can be realized by utilizing an integrated double differential pressure transmitter.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
Fig. 2 is a left side view structural schematic diagram of the present invention;
FIG. 3 is a schematic structural view of a cross-sectional view of an eccentric orifice plate according to the present invention;
Fig. 4 is a schematic view of the front view structure of the eccentric orifice plate of the present invention.
In the figure: 1. an integrated double differential pressure transmitter; 2. six valve banks; 3. taking a pressure ring chamber; 4. a pressure guiding pipe; 5. a blow-off pipe; 6, a blowdown valve; 7. an eccentric orifice plate; 8. and a pressure taking port.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
as shown in fig. 1-4, the utility model provides a technical solution: the utility model provides an eccentric orifice plate gas-liquid two-phase flow measuring device of two differential pressure of integral type pressures, includes two differential pressure transmitters of integral type 1 and eccentric orifice plate 7, eccentric orifice plate 7 is located inside the measurement pipeline, and eccentric orifice plate 7 and measurement pipeline inner wall fixed connection, be equipped with first department, second department and the third department of getting the pressure in the measurement pipeline, first department, second department and the third department of getting the pressure all are equipped with gets pressure ring room 3, first department of getting the pressure is located eccentric orifice plate 7 upstream pipeline, second department and the third department of getting the pressure set gradually in 7 downstream pipelines of eccentric orifice plate, be equipped with six valves 2 on the two differential pressure transmitters of integral type 1, and 1 one side of the two differential pressure transmitters of integral type is connected with the pressure pipe 4.
The first pressure taking part, the second pressure taking part and the third pressure taking part are respectively used for taking pressure through pressure taking ports 8, pressure leading ports are formed above the vertical axis of the pressure taking ring chamber 3, the pressure leading pipes 4 are fixedly connected with the pressure leading ports, and pressure in the pressure taking ring chamber 3 can be led out through the pressure leading pipes 4 and sent into the integrated double-differential-pressure transmitter 1; a sewage discharge outlet is formed below the vertical axis of the pressure ring taking chamber 3, a sewage discharge pipe 5 is connected to the sewage discharge outlet, a sewage discharge valve 6 is mounted on the sewage discharge pipe 5, and sewage discharge can be performed by opening the sewage discharge valve 6 and utilizing the sewage discharge pipe 5; 7 throttle parts of eccentric orifice plate are towards the horizontal pipeline below, and first pressure taking department is 0.5~1 times of pipeline internal diameter apart from 7 upstream end faces of eccentric orifice plate, and second pressure taking department is 0.5~2 times of pipeline internal diameter apart from 7 low reaches end faces of eccentric orifice plate, and third pressure taking department is 5~9 times of pipeline internal diameter apart from 7 low reaches end faces of eccentric orifice plate, utilizes three groups of pressure taking departments to take pressure simultaneously, and it is effectual to take pressure, convenient to use.
it should be noted that, in the integrated double differential pressure measurement device for the two-phase flow of the eccentric orifice plate gas-liquid, when working, the gas-liquid flows in the measurement pipeline, the gas-liquid passing through the eccentric orifice plate 7 can flow to the other end of the measurement pipeline through the circular through hole on the eccentric orifice plate 7, the eccentric orifice plate 7 is used for throttling, so that the pressure values of the gas-liquid at the two sides of the eccentric orifice plate 7 are different, meanwhile, the upstream pipeline and the downstream pipeline where the eccentric orifice plate 7 is located are respectively provided with a first pressure taking part, a second pressure taking part and a third pressure taking part, the pressure taking can be respectively carried out through the first pressure taking part, the second pressure taking part and the third pressure taking part, the pressure taking precision is high, the pressure taking effect is good, then the six valve sets 2 are opened, the pressure is sent into the integrated double differential pressure transmitter 1 through the pressure introduction pipes 4, the measurement of different differential pressure values is realized, the, the method can calculate the relevant flow parameters of the gas phase and the liquid phase in the gas-liquid two-phase flow, and has simple measurement operation and convenient use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides an eccentric orifice plate gas-liquid two-phase flow measuring device of two differential pressure of integral type pressure taps, a serial communication port, including two differential pressure transducers of integral type (1) and eccentric orifice plate (7), eccentric orifice plate (7) are located inside the measurement pipeline, and eccentric orifice plate (7) and measurement pipeline inner wall fixed connection, be equipped with first department of getting pressure, second department of getting pressure and third department of getting pressure in the measurement pipeline, first department of getting pressure, second department of getting pressure and third department of getting pressure all are equipped with and get pressure ring room (3), first department of getting pressure is located eccentric orifice plate (7) upstream pipeline, second department of getting pressure and third department of getting pressure set gradually in eccentric orifice plate (7) downstream pipeline, be equipped with six valves (2) on two differential pressure transducers of integral type (1), and two differential pressure transducers of integral type (1) one side is connected with and draws pressure tube (4).
2. The integrated double-differential-pressure-tapping eccentric orifice plate gas-liquid two-phase flow measuring device according to claim 1, characterized in that: the throttling part of the eccentric orifice plate (7) faces the lower part of the horizontal pipeline, the distance from the upstream end face of the eccentric orifice plate (7) to the first pressure taking position is 0.5-1 times of the inner diameter of the pipeline, the distance from the downstream end face of the eccentric orifice plate (7) to the second pressure taking position is 0.5-2 times of the inner diameter of the pipeline, and the distance from the downstream end face of the eccentric orifice plate (7) to the third pressure taking position is 5-9 times of the inner diameter of the pipeline.
3. The integrated double-differential-pressure-tapping eccentric orifice plate gas-liquid two-phase flow measuring device according to claim 1, characterized in that: two differential pressures are measured by using the integrated double differential pressure transmitter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920895469.4U CN209745461U (en) | 2019-06-14 | 2019-06-14 | Integrated double-differential-pressure-taking gas-liquid two-phase flow measuring device for eccentric orifice plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920895469.4U CN209745461U (en) | 2019-06-14 | 2019-06-14 | Integrated double-differential-pressure-taking gas-liquid two-phase flow measuring device for eccentric orifice plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209745461U true CN209745461U (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920895469.4U Active CN209745461U (en) | 2019-06-14 | 2019-06-14 | Integrated double-differential-pressure-taking gas-liquid two-phase flow measuring device for eccentric orifice plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN209745461U (en) |
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2019
- 2019-06-14 CN CN201920895469.4U patent/CN209745461U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Tao Inventor after: Qi Fengfeng Inventor after: Aikebaier.Maimaiti Inventor after: Chen Zenghui Inventor before: Zhang Tao Inventor before: Qi Fengfeng Inventor before: Ai Kebaier Inventor before: Memet Inventor before: Chen Zenghui |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211103 Address after: 300192 1805-1808, Hetong building, north of the middle section of Anshan West Road, Nankai District, Tianjin (Science and Technology Park) Patentee after: TIANJIN TJ. UNI TAIHE AUTOMATION CONTROL & INSTRUMENT Co.,Ltd. Address before: 300192 Hetong building-1805, north of the middle section of Anshan West Road, Nankai District, Tianjin Patentee before: Tianjin Tiantai measurement and Control Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211214 Address after: No. 255, Wanglong Road, high tech Industrial Park, Xindu District, Chengdu, Sichuan 610000 Patentee after: Chengdu Houhe Precision Measurement Technology Co.,Ltd. Address before: 300192 1805-1808, Hetong building, north of the middle section of Anshan West Road, Nankai District, Tianjin (Science and Technology Park) Patentee before: TIANJIN TJ. UNI TAIHE AUTOMATION CONTROL & INSTRUMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |