CN210802568U - Arnuba formula gas metering device - Google Patents
Arnuba formula gas metering device Download PDFInfo
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- CN210802568U CN210802568U CN201921573160.XU CN201921573160U CN210802568U CN 210802568 U CN210802568 U CN 210802568U CN 201921573160 U CN201921573160 U CN 201921573160U CN 210802568 U CN210802568 U CN 210802568U
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- sensing control
- pressure
- control device
- flow
- gas metering
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- 230000001702 transmitter Effects 0.000 claims abstract description 28
- 241000224489 Amoeba Species 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 230000003068 static Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000789 fastener Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 19
- 238000005259 measurement Methods 0.000 description 13
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004429 Calibre Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001932 seasonal Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000010151 yanghe Substances 0.000 description 1
Abstract
The utility model discloses an Aluba type gas metering device, which comprises a measuring pipe section, wherein a pressure sensing control device, a flow sensing control device and a temperature sensing control device are sequentially arranged on the measuring pipe according to the gas flowing direction, and the three sensing control devices are all electrically connected with an external display device; the flow sensing control device comprises a differential pressure transmitter, a valve group, a conversion joint, a second stop valve, a first pressure sampling pipe, a fastener, a sealing gasket, a third mounting seat and an amoeba flow sensor which are sequentially connected from top to bottom. The scheme is used in a matched mode through the design of the flow sensing control device, the pressure sensing control device and the temperature sensing control device, and the instantaneous flow value of a pipeline medium can be obtained more accurately. Based on the design, the reliability and the stability of the instrument are greatly improved, and the accuracy (+ -1.0%) and the repeatability are also ensured and improved for a long time.
Description
Technical Field
The utility model relates to a flowmeter technical field specifically is a gaseous metering device of amoebic formula.
Background
The gas media are various in types, different in physical properties, and various and changeable in-situ process parameters, such as steam which changes with seasonal temperature, pressure and flow, natural gas and coal gas with components changing at any time, and the like, particularly large-caliber pipelines, the manufacturing cost and the installation speed of a measuring instrument need to be considered. Aiming at the characteristics of the gas medium, instrument manufacturers develop various gas flow meters and gas metering devices, which are suitable for the metering requirements of different occasions and media, but the application range of the gas flow meters and the gas metering devices is limited to a certain extent. The vortex shedding flowmeter and the precession vortex flowmeter which are representative products of the speed type gas flowmeter are not suitable for measuring the large-caliber gas flow; the measuring accuracy of a standard orifice plate, a nozzle, a Venturi tube and the like of the throttling device cannot meet the measuring requirement, wherein the throttling device has large pressure loss, poor energy-saving effect, large size of a large-caliber instrument and high manufacturing cost. Meanwhile, most instruments cannot realize real-time compensation calculation of temperature and pressure, and when the technological parameters of the gas medium are seriously deviated from the design parameters, the measurement accuracy is inevitably seriously reduced. In order to realize temperature and pressure compensation calculation, a pressure measuring instrument and a temperature measuring instrument are usually required to be additionally arranged on a measuring pipeline, pressure, temperature and flow signals are transmitted to a control system to carry out temperature and pressure compensation calculation, so that a relatively accurate flow measurement value is obtained, the workload is large and cumbersome, and the user cost is greatly increased. Along with the society more and more attach importance and stricter to the measurement of gas energy, the urgent need in market can be applicable to heavy-calibre simultaneously, and the cost is reasonable, satisfies that the measurement degree of accuracy is high, application medium wide range, real-time temperature pressure compensation calculate, and the gas metering device of integrated design can long-term storage various measured data, real-time the transfer, and convenience of customers carries out data analysis, improves technology, improves work such as production efficiency, reduce cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an amoebic formula gas metering device has solved the problem that above-mentioned background art provided.
In order to achieve the above object, the utility model provides a following technical scheme: an Arnubar type gas metering device comprises a measuring pipe section, wherein a pressure sensing control device, a flow sensing control device and a temperature sensing control device are sequentially arranged on the measuring pipe according to the gas flowing direction, and the three sensing control devices are electrically connected with an external display device; the flow sensing control device comprises a differential pressure transmitter, a valve group, a conversion joint, a second stop valve, a first pressure sampling pipe, a fastener, a sealing gasket, a third mounting seat and an amoeba flow sensor which are sequentially connected from top to bottom.
Preferably, the amoebic flow sensor comprises an instrument flange, a detection rod, a total pressure pipe and a static pressure pipe which are sequentially connected from top to bottom.
Preferably, the pressure sensing control device comprises a pressure transmitter, a first mounting seat, a first stop valve and a second pressure tapping pipe which are sequentially connected from top to bottom, and the second pressure tapping pipe is arranged on the measuring pipe section.
Preferably, the temperature sensing control device comprises a temperature transmitter or a transmitter and a second mounting seat which are connected in sequence, and the second mounting seat is connected with the measuring pipe section.
Preferably, the temperature sensor is a three-wire PT100 platinum thermistor temperature sensor.
Preferably, the temperature transmitter is a PT100 platinum thermistor temperature transmitter. Preferably, the external display device is an integrated external display device, and is one of a flow integrating meter or a flow computer.
Preferably, the external display device is a split external display device, and specifically is a distributed control system DCS industrial control computer.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses well flow sensing controlling means is for moving pressure head formula differential pressure formula flowmeter, through its and pressure sensing controlling means, temperature sensing controlling means structure and the design of position, uses using the cooperation, can be more accurate reachs the instantaneous flow value of pipeline medium. Based on the design, the reliability and the stability of the instrument are greatly improved, and the accuracy (+ -1.0%) and the repeatability are also ensured and improved for a long time.
2. The utility model discloses in, through pressure sensing controlling means, temperature sensing controlling means and flow sensing controlling means and outside display device's use, can carry out real-time control to temperature, the unstable gaseous medium of pressure, can carry out temperature pressure compensation in real time and calculate, the gas flow measurement that the measurement degree of accuracy is high is applicable to the flow measurement of heavy-calibre circulation pipeline gaseous medium.
3. The measured parameter data can be stored and called for a long time, and big data are provided for technical analysis and process improvement of users.
4. The utility model discloses, integrated design, the installation is maintained conveniently, can export multiple signal, multiple communication mode, on-the-spot measurement of being convenient for, management and control.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the pressure sensing control device of the present invention;
FIG. 3 is a schematic structural view of the flow sensing control device of the present invention;
FIG. 4 is a schematic structural view of an Arnubuck flow sensor of the present invention;
fig. 5 is a schematic structural view of the temperature sensing control device of the present invention.
In the figure: 1. the device comprises an external display device, a 2 pressure sensing control device, a 21 pressure transmitter, a 22 first mounting seat, a 23 first cut-off valve, a 24 second pressure tapping pipe, a 3 flow sensing control device, a 31 differential pressure transmitter, a 32 valve group, a 33 adapter, a 34 second cut-off valve, a 35 first pressure tapping pipe, a 36 fastener, a 37 sealing gasket, a 38 third mounting seat, a 39 Alnobar flow sensor, a 391 instrument flange, a 392 detection rod, a 394 total pressure pipe, a 393 static pressure pipe, a 4 temperature sensing control device, a 41 temperature sensor or a temperature transmitter, a 42 second mounting seat and a5 measurement pipe section.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the utility model provides an amoeba type gas metering device, which comprises a measuring pipe section 5, wherein a pressure sensing control device 2, a flow sensing control device 3 and a temperature sensing control device 4 are sequentially arranged on the measuring pipe according to the gas flowing direction, and the three sensing control devices are all electrically connected with an external display device 1; the flow sensing control device 3 comprises a differential pressure transmitter 31, a valve group 32, a conversion joint 33, a second stop valve 34, a first pressure sampling pipe 35, a fastener 36, a sealing gasket 37, a third mounting seat 38 and an amoeba flow sensor 39 which are sequentially connected from top to bottom.
The flow sensing control device 3 is installed in a plug-in flange connection mode, an opening is formed in the measuring pipe 5, a mounting seat is welded on the measuring pipe, and an instrument flange 391 on the Arnuba flow sensor 39 is connected with the mounting seat through a fastener 36 and a sealing gasket 37 and is sealed. Therefore, the flow meter is particularly suitable for measuring the flow of the gas medium of the large-caliber pipeline, and is convenient to install, and the manufacturing cost and the installation and maintenance cost of the meter are greatly reduced.
The detection rod 392 of the Arinba flow sensor 39 inserted into the pipeline part is designed in a rod shape, the diameter is usually phi 30mm, the size is small, the pressure loss is very small when a medium passes through, and the energy-saving effect is obvious.
The differential pressure transmitter 31 of the flow sensing control device 3 collects the total pressure of the total pressure pipe 393 and the static pressure of the static pressure pipe 394 to obtain the upstream and downstream differential pressure values, and the instantaneous flow value of the medium is calculated according to the working principle of a differential pressure type flowmeter (Anuna type). The valve group 32 and the adapter 33 are connecting pieces between the pressure guide pipe and the transmitter, a balance valve in the middle of the valve group 32 plays a role in mutual isolation (under a measuring working condition) or communication (under a maintenance working condition) of a high-pressure side and a low-pressure side, and the first stop valve 34 realizes the connection and disconnection of the flow pipeline and the pressure guide pipeline of the differential pressure transmitter 31, so that the safety margin of the pressure guide pipeline is enhanced. The differential pressure transmitter 31 is preferably made of products such as EJA110E series, EJA120E series, Rosimon 3051DP series and 3051CD series, so that the stability, reliability and accuracy of the measurement work are guaranteed.
Preferably, the amoebic flow sensor 39 comprises an instrument flange 391, a detection rod 392, a total pressure pipe 393 and a static pressure pipe 394 which are connected in sequence from top to bottom.
Preferably, the pressure sensing control device 2 includes a pressure transmitter 21, a first mounting seat 22, a first stop valve 23 and a second pressure sampling pipe 24, which are connected in sequence from top to bottom, and the second pressure sampling pipe 24 is arranged on the measurement pipe section 5.
The pressure sensing control device 2 is arranged on the upstream side measuring pipe section 5 of the flow sensing control device 3, the distance from the Annubar flow sensor 39 of the flow sensing control device 3 is generally required to be not less than 100mm, and the influence of the medium flow state change caused by the installation of a pressure unit on the flow measurement accuracy is completely eliminated. The pressure transmitter 21 is preferably a brand product such as the pressure transmitter 21 of the EJA530E series and the Rosimon 3051T series of the Yanghe, so that the stability, the reliability and the accuracy of the work are improved.
Preferably, the temperature sensing and controlling device 4 comprises a temperature sensor or a temperature transmitter 41 and a second mounting seat 42 which are connected in sequence, and the second mounting seat 42 is connected with the measuring pipe section 5.
Preferably, the temperature sensor is a three-wire PT100 platinum thermistor temperature sensor.
Preferably, the temperature transmitter is a PT100 platinum thermistor temperature transmitter.
The temperature sensor is preferably a three-wire PT100 platinum thermistor temperature sensor (A-grade or B-grade, outputting resistance signals), and the temperature transmitter is preferably a PT100 platinum thermistor temperature transmitter (0.5-grade, 4-20mA current signals), so that the stability, reliability and accuracy of the measurement work are ensured. For high-temperature and high-pressure media, the mounting seat can be in a form of welding a whole drilling conical pipe.
Preferably, the external display device 1 is an integrated external display device, and is one of a flow integrating meter and a flow computer.
Preferably, the external display device 1 is a split external display device, and preferably a distributed control system DCS industrial control computer.
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 (8)
1. An amoeba type gas metering device is characterized by comprising a measuring pipe section (5), wherein a pressure sensing control device (2), a flow sensing control device (3) and a temperature sensing control device (4) are sequentially arranged on the measuring pipe according to the gas flowing direction, and the three sensing control devices are electrically connected with an external display device (1); the flow sensing control device (3) comprises a differential pressure transmitter, a valve group (32), a conversion joint (33), a second stop valve (34), a first pressure sampling pipe (35), a fastening piece (36), a sealing gasket (37), a third mounting seat (38) and an amoeba flow sensor (39) which are sequentially connected from top to bottom.
2. An amoebic gas metering device according to claim 1, wherein: the Anuba flow sensor (39) comprises an instrument flange (391), a detection rod (392), a total pressure pipe (393) and a static pressure pipe (394) which are sequentially connected from top to bottom.
3. An amoebic gas metering device according to claim 1, wherein: the pressure sensing control device (2) comprises a pressure transmitter (21), a first mounting seat (22), a first stop valve (23) and a second pressure tapping pipe (24) which are sequentially connected from top to bottom, wherein the second pressure tapping pipe (24) is arranged on the measuring pipe section (5).
4. An amoebic gas metering device according to claim 1, wherein: the temperature sensing control device (4) comprises a temperature sensor or a temperature transmitter (41) and a second mounting seat which are sequentially connected, and the second mounting seat is connected with the measuring pipe section (5).
5. An amoebic gas metering device according to claim 4, wherein: the temperature sensor is specifically a three-wire PT100 platinum thermistor temperature sensor.
6. An amoebic gas metering device according to claim 4, wherein: the temperature transmitter is specifically a PT100 platinum thermal resistance temperature transmitter.
7. An amoebic gas metering device according to claim 1, wherein: the external display device (1) is an integrated external display device and is one of a flow integrating instrument or a flow computer.
8. An amoebic gas metering device according to claim 1, wherein: the external display device (1) is a split external display device, and specifically is a Distributed Control System (DCS) industrial control computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921573160.XU CN210802568U (en) | 2019-09-20 | 2019-09-20 | Arnuba formula gas metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921573160.XU CN210802568U (en) | 2019-09-20 | 2019-09-20 | Arnuba formula gas metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210802568U true CN210802568U (en) | 2020-06-19 |
Family
ID=71240287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921573160.XU Active CN210802568U (en) | 2019-09-20 | 2019-09-20 | Arnuba formula gas metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210802568U (en) |
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2019
- 2019-09-20 CN CN201921573160.XU patent/CN210802568U/en active Active
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