CN114046836A - Gas flow measurement device - Google Patents
Gas flow measurement device Download PDFInfo
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- CN114046836A CN114046836A CN202111412729.6A CN202111412729A CN114046836A CN 114046836 A CN114046836 A CN 114046836A CN 202111412729 A CN202111412729 A CN 202111412729A CN 114046836 A CN114046836 A CN 114046836A
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- differential pressure
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- measuring device
- detection module
- pressure detection
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- 238000005259 measurement Methods 0.000 title description 7
- 238000001514 detection method Methods 0.000 claims abstract description 71
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to the technical field, in particular to a gas flow measuring device, which comprises: the control device comprises a shell and a main circuit board, the main circuit board is arranged in the cavity and comprises a control module, a differential pressure detection module and a thermal detection module, and the differential pressure detection module and the thermal detection module are electrically connected with the control module; the flow detection assembly comprises a differential pressure flow detector and a thermal type flow detector, the differential pressure detection module is electrically connected with the differential pressure flow detector, and the thermal type detection module is electrically connected with the thermal type flow detector. According to the gas flow measuring device provided by the invention, the differential pressure flow detector and the thermal type flow detector are integrated in the gas flow measuring device, different flow detectors are used in different environments, the gas flow measuring device does not need to be replaced, the working efficiency of workers is improved, and gas leakage such as gas in a pipeline caused by replacing the gas flow measuring device for multiple times is avoided.
Description
Technical Field
The invention relates to the technical field of measuring equipment, in particular to a gas flow measuring device.
Background
Currently, the common measurement principles for gas flow measurement are: differential pressure, thermal, ultrasonic, vortex street, etc. The ultrasonic flowmeter adopts a time difference method, utilizes a pair of ultrasonic transducers to alternately transmit and receive ultrasonic waves in opposite directions, measures the flow velocity of fluid by observing the forward flow and reverse flow propagation time of the ultrasonic transducers in a medium, and calculates the flow by the flow velocity, and is an indirect and non-contact measuring instrument; the vortex street flowmeter is a flowmeter for measuring the fluid flow of a closed pipeline according to the Karman vortex principle; the differential pressure flow meter calculates the flow rate by measuring the pressure drop over an obstruction inserted in the flow passage; the thermal mass flow meter performs mass flow measurement based on the heat transfer principle of the heating element.
But the sensitivity and the measuring range of the differential pressure flowmeter can not meet the measuring requirements in the environment with low flow and small water vapor; and the hot type flowmeter is big in moist steam, sensitivity and range can't reach the measurement requirement in the operational environment that the velocity of flow is high, and factors such as humidity can receive the influence of weather and season, consequently need change different flowmeters according to the environment of difference when in actual use, need dismantle and install the flowmeter many times, waste time and energy, the extravagant cost, and in specific occasion a bit, for example under the mine, the dismantlement and the installation of flowmeter are more complicated, many times the installation can cause staff's work efficiency to reduce with dismantling the flowmeter, still arouse gas leakage such as gas in the mine pipeline easily.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the technical problems that when the flowmeter in the prior art is used, the flowmeter needs to be replaced for multiple times according to the environment, the working efficiency of workers is reduced, and gas leakage such as gas in a mine pipeline is easily caused.
The technical scheme adopted by the invention for solving the technical problems is as follows: a gas flow measurement device comprising:
the control device comprises a shell and a main circuit board, wherein a cavity is formed in the shell, the main circuit board is installed in the cavity, the main circuit board comprises a control module, a differential pressure detection module and a thermal detection module, and the differential pressure detection module and the thermal detection module are both electrically connected with the control module;
the flow detection assembly comprises a differential pressure flow detector and a thermal type flow detector, the differential pressure detection module is electrically connected with the differential pressure flow detector, and the thermal type detection module is electrically connected with the thermal type flow detector.
Further, a display is installed in the shell, and the differential pressure detection module and the thermal type detection module are both electrically connected with the display.
Further, the control device further comprises a cover body, the cover body is installed on the shell body and covers the shell body, and a display window is arranged on the cover body.
Further, still include the connector, the one end and the controlling means fixed connection of connector, the other end and the flow detection subassembly fixed connection of connector.
Further, the connector comprises a conduit seat cover, a column body is fixedly arranged at the lower end of the shell, an insertion groove is formed in the upper end of the conduit seat cover, the column body is inserted into the conduit seat cover in an insertion mode, a step face is arranged at the lower end of the column body, and the step face abuts against the bottom face of the insertion groove to be limited.
Further, be provided with the retaining ring for the shaft on the cylinder, set up the ring channel on the periphery of cylinder, the retaining ring for the shaft is installed in the ring channel, the cover is equipped with the limiting plate on the cylinder, the limiting plate is located the top of the retaining ring for the shaft, the limiting plate offsets with the retaining ring for the shaft, the retaining ring for the shaft and limiting plate and cylinder together plug in into the pipe seat lid, the top of limiting plate is provided with the pressure equipment board, the pressure equipment board offsets with the limiting plate, fixed connection can be dismantled with the pipe seat lid to the pressure equipment board.
The gas flow measuring device has the advantages that when the gas flow measuring device is in an environment with low flow rate and small water vapor, the control module controls the thermal detection module to be started, data displayed on the display is data transmitted by the thermal detection module, when the gas flow measuring device is in an environment with high flow rate and large water vapor, the control module controls the differential pressure detection module to be started, and data displayed on the display is data transmitted by the differential pressure detection module. Thereby improving the detection accuracy of the gas flow measuring device.
When connecting casing and pipe seat lid, the lower extreme of cylinder carries on spacingly through the bottom surface of step face with the inserting groove, make the unable upward movement of cylinder, conflict through limiting plate and axle retaining ring, make the unable upward movement of axle retaining ring and cylinder, thereby with cylinder and pipe seat lid relatively fixed, when needs separate cylinder and pipe seat lid, only need dismantle the pressure equipment board from the pipe seat lid, then shift out the cylinder from the inserting groove and can realize, thereby conveniently overhaul controlling means, need not pull down whole gas flow measuring device from equipment.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic configuration diagram of a gas flow rate measurement device of the present invention.
Fig. 2 is a schematic cross-sectional view of a gas flow measuring device of the present invention.
Fig. 3 is an enlarged view at a in fig. 2.
Fig. 4 is an enlarged view at B in fig. 2.
Fig. 5 is a schematic structural view of a differential pressure detecting pipe and a connection pipe of the present invention.
FIG. 6 is a schematic bottom view of the differential pressure sensing tube and connecting tube of the present invention.
In the figure: 1. a control device; 1-1, a shell; 1-2, a main circuit board; 2. a flow detection component; 2-1, a differential pressure flow detector; 2-2, a thermal flow detector; 1-3, a display; 1-4, a cover body; 3. a connector; 3-1, a catheter seat cover; 1-11, column; 3-11, inserting grooves; 1-111, step surface; 1-12, a retainer ring for a shaft; 1-13, a limit plate; 3-2, pressing a plate; 3-3, connecting pipes; 3-31, a first gas channel; 3-32, a second gas channel; 3-33, a first vent fitting; 3-34, a second vent joint; 3-35, a first air nozzle; 3-36 and a second air nozzle; 2-11, a differential pressure detection pipe; 2-111, high pressure gas channel; 2-112, low pressure gas channel; 2-113, a first air inlet; 2-114, a second inlet; 2-115, a first contact surface; 2-116, a second contact surface; 2-21, a temperature sensor; 2-22, mass flow rate sensor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 6, which are the most preferred embodiments of the present invention, a gas flow measuring device includes a control device 1, a connector 3 and a flow detecting assembly 2, wherein the flow detecting assembly 2 is connected to the control device 1 for detecting gas flow, the connector 3 is used for assembling the control device 1 and the flow detecting assembly 2, the flow detecting assembly 2 includes a differential pressure flow detector 2-1 and a thermal flow detector 2-2, the differential pressure flow detector 2-1 and the thermal flow detector 2-2 are electrically connected to the control device 1, the differential pressure flow detector collects a pressure difference of gas flowing through, and transmits the collected pressure difference data to the control device 1, the thermal flow detector 2-2 collects the temperature difference of the gas flowing through, the heat quantity taken away by the flowing gas is calculated through the temperature difference, and therefore the flow rate of the flowing gas is calculated.
The control device 1 comprises a shell 1-1, a cover body 1-4, a main circuit board 1-2 and a first sealing ring, wherein a cavity is arranged in the shell 1-1, the main circuit board 1-2 is arranged in the cavity, the cover body 1-4 is arranged on the shell 1-1 to cover the shell 1-1, the first sealing ring is arranged between the shell 1-1 and the cover body 1-4 to seal the shell 1-1 and the cover body 1-4, a display window is arranged on the cover body 1-4, a display 1-3 is arranged in the shell 1-1, the display 1-3 is in plug fit with the display, and the display 1-3 is electrically connected with the main circuit board 1-2 to display information on the main circuit board 1-2 on the display 1-3.
The main circuit board 1-2 comprises a control module, a differential pressure detection module and a thermal type detection module, wherein the differential pressure detection module and the thermal type detection module are electrically connected with the control module, the differential pressure detection module is electrically connected with a differential pressure flow detector 2-1, the thermal type detection module is electrically connected with a thermal type flow detector 2-2, and the differential pressure detection module and the thermal type detection module are electrically connected with a display 1-3. When the gas flow measuring device is in an environment with low flow rate and small water vapor, the control module controls the thermal detection module to be started, data displayed on the display 1-3 is data transmitted by the thermal detection module, when the gas flow measuring device is in an environment with high flow rate and large water vapor, the control module controls the differential pressure detection module to be started, and data displayed on the display 1-3 is data transmitted by the differential pressure detection module. Thereby improving the detection accuracy of the gas flow measuring device.
The connector 3 comprises a conduit seat cover 3-1, a press-mounting plate 3-2 and a connecting pipe 3-3, the lower end of the shell 1-1 is fixedly provided with a column body 1-11, the column body 1-11 and the shell 1-1 can be integrally formed, the upper end of the conduit seat cover 3-1 is provided with an inserting groove 3-11, the column body 1-11 is inserted into the conduit seat cover 3-1, the lower end of the column body 1-11 is provided with a step surface 1-111, the step surface 1-111 is abutted against the bottom surface of the inserting groove 3-11 for limiting, a second sealing ring is arranged between the column body 1-11 and the conduit seat cover 3-1 for sealing, the column body 1-11 is provided with a shaft retainer ring 1-12, the circumferential surface of the column body 1-11 is provided with an annular groove, and the shaft retainer ring 1-12 is arranged in the annular groove, the column body 1-11 is sleeved with a limiting plate 1-13, the limiting plate 1-13 is positioned above a shaft check ring 1-12, the limiting plate 1-13 is abutted against the shaft check ring 1-12, the limiting plate 1-13 and the column body 1-11 are inserted into a conduit seat cover 3-1 together, a press mounting plate 3-2 is covered above the limiting plate 1-13, the press mounting plate 3-2 is abutted against the limiting plate 1-13, and the press mounting plate 3-2 is detachably and fixedly connected with the conduit seat cover 3-1 through screws. The lower end of the cylinder 1-11 is limited by the step surface 1-111 and the bottom surface of the insertion groove 3-11, so that the cylinder 1-11 cannot move upwards, the shaft check ring 1-12 and the cylinder 1-11 cannot move upwards through the interference of the limiting plate 1-13 and the shaft check ring 1-12, so that the cylinder 1-11 and the conduit seat cover 3-1 are relatively fixed, when the cylinder 1-11 and the conduit seat cover 3-1 need to be separated, only the press-mounting plate 3-2 needs to be detached from the conduit seat cover 3-1, and then the cylinder 1-11 is moved out of the insertion groove 3-11, so that the control device 1 is convenient to overhaul, and the whole gas flow measuring device does not need to be detached from equipment.
The upper end of the connecting pipe 3-3 is provided with an external thread, the lower end of the catheter seat cover 3-1 is provided with an internal thread hole, and the connecting pipe 3-3 and the catheter seat cover 3-1 are fixed through the matching threaded connection of the external thread and the internal thread hole. A first gas channel 3-31 and a second gas channel 3-32 are arranged in the connecting pipe 3-3, the upper end face of the connecting pipe 3-3 is connected with a first ventilation joint 3-33 and a second ventilation joint 3-34, the first ventilation joint 3-33 is communicated with the first gas channel 3-31, the second gas channel 3-32 is communicated with the second ventilation joint 3-34, the first ventilation joint 3-33 and the second ventilation joint 3-34 are both connected with a differential pressure sensor, the upper end face of the connecting pipe 3-3 is connected with a plurality of first air nozzles 3-35 and a plurality of second air nozzles 3-36, the first air nozzles 3-35 are communicated with the first gas channel 3-31, and the second air nozzles 3-36 are communicated with the second gas channel 3-32.
The differential pressure flow detector 2-1 comprises a differential pressure detection pipe 2-11, the differential pressure detection pipe 2-11 is fixedly connected with a connecting pipe 3-3, the cross section of the differential pressure detection pipe 2-11 is in a bullet shape, one end of the differential pressure detection pipe 2-11 with small size contacts the gas flowing through the pipeline first, the differential pressure detection pipe 2-11 comprises a first contact surface 2-115 and a second contact surface 2-116, the first contact surface 2-115 is positioned at one end of the differential pressure detection pipe 2-11 with small size, the second contact surface 2-116 is positioned at one end of the differential pressure detection pipe 2-11 with large size, the first contact surface 2-115 is the windward surface in the airflow flow direction, the second contact surface 2-116 is the leeward surface in the airflow flow direction, a plurality of first air inlets 2-113 are arranged on the first contact surface 2-115, the second contact surface 2-116 is provided with a plurality of second air inlets, the inside of the differential pressure detection pipe 2-11 is provided with a high-pressure gas channel 2-111 and a low-pressure gas channel 2-112, the first air inlets 2-113 are communicated with the high-pressure gas channel 2-111, and the second air inlets are communicated with the low-pressure gas channel 2-112. The upper part of the high-pressure gas channel 2-111 is communicated with the first gas channel 3-31, and the lower-pressure gas channel 2-112 is communicated with the second gas channel 3-32.
The thermal flow detector 2-2 comprises a temperature sensor 2-21, a mass flow rate sensor 2-22 and a heater, the temperature sensor 2-21 and the mass flow rate sensor 2-22 are arranged at the lower end of a differential pressure detection pipe 2-11, the heater is arranged inside the differential pressure detection pipe 2-11, the heater is connected with the mass flow rate sensor 2-22 to heat the mass flow rate sensor 2-22, the temperature sensor 2-21 and the mass flow rate sensor 2-22 are electrically connected with a thermal detection module, the temperature of the gas flowing through the pipeline is measured through the temperature sensors 2-21, the mass flow rate sensors 2-22 are heated through the heaters, and a part of heat of the mass flow rate sensors 2-22 is taken away when the gas flows through the pipeline, so that the flow of the gas is calculated through calculating the heat taken away by the gas in the pipeline.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined by the scope of the claims.
Claims (10)
1. A gas flow measuring device characterized by: the method comprises the following steps:
the control device (1) comprises a shell (1-1) and a main circuit board (1-2), a cavity is arranged in the shell (1-1), the main circuit board (1-2) is installed in the cavity, the main circuit board (1-2) comprises a control module, a differential pressure detection module and a thermal detection module, and the differential pressure detection module and the thermal detection module are both electrically connected with the control module;
flow detection subassembly (2), flow detection subassembly (2) include differential pressure flow detector (2-1) and hot type flow detector (2-2), differential pressure detection module and differential pressure flow detector (2-1) electricity are connected, hot type detection module and hot type flow detector (2-2) electricity are connected.
2. A gas flow measuring device according to claim 1, wherein: the differential pressure thermal type differential pressure detection device is characterized in that a display (1-3) is installed in the shell (1-1), and the differential pressure detection module and the thermal type detection module are electrically connected with the display (1-3).
3. A gas flow measuring device according to claim 1, wherein: the control device (1) further comprises a cover body (1-4), the cover body (1-4) is installed on the shell body (1-1) to cover the shell body (1-1), and a display window is arranged on the cover body (1-4).
4. A gas flow measuring device according to claim 3, wherein: still include connector (3), the one end and controlling means (1) fixed connection of connector (3), the other end and flow detection subassembly (2) fixed connection of connector (3).
5. A gas flow measuring device according to claim 1, wherein: the connector (3) comprises a conduit seat cover (3-1), a column body (1-11) is fixedly arranged at the lower end of the shell (1-1), an insertion groove (3-11) is formed in the upper end of the conduit seat cover (3-1), the column body (1-11) is inserted into the conduit seat cover (3-1), a step surface (1-111) is arranged at the lower end of the column body (1-11), and the step surface (1-111) abuts against the bottom surface of the insertion groove (3-11) to limit.
6. A gas flow measuring device according to claim 1, wherein: the guide pipe is characterized in that a shaft check ring (1-12) is arranged on the column body (1-11), an annular groove is formed in the circumferential surface of the column body (1-11), the shaft check ring (1-12) is installed in the annular groove, a limiting plate (1-13) is sleeved on the column body (1-11), the limiting plate (1-13) is located above the shaft check ring (1-12), the limiting plate (1-13) abuts against the shaft check ring (1-12), the limiting plate (1-13) and the column body (1-11) are inserted into the guide pipe seat cover (3-1), a press-mounting plate (3-2) is arranged above the limiting plate (1-13), and the press-mounting plate (3-2) abuts against the limiting plate (1-13), the press-mounting plate (3-2) is detachably and fixedly connected with the conduit seat cover (3-1).
7. A gas flow measuring device according to claim 1, wherein: the connector (3) also comprises a connecting pipe (3-3), the upper end of the connecting pipe (3-3) is in threaded connection with the catheter seat cover (3-1), a first gas channel (3-31) and a second gas channel (3-32) are arranged in the connecting pipe (3-3), the upper end surface of the connecting pipe (3-3) is connected with a first ventilation joint (3-33) and a second ventilation joint (3-34), the first ventilation joint (3-33) is communicated with the first gas channel (3-31), the second gas channel (3-32) is communicated with a second gas joint (3-34), a differential pressure sensor is arranged in the connecting pipe (3-3), and the first ventilation joint (3-33) and the second ventilation joint (3-34) are connected with the differential pressure sensor.
8. A gas flow measuring device according to claim 1, wherein: the differential pressure flow detector (2-1) comprises a differential pressure detection pipe (2-11), the differential pressure detection pipe (2-11) is fixedly connected with a connecting pipe (3-3), the interior of the differential pressure detection pipe (2-11) is provided with a high-pressure gas channel (2-111) and a low-pressure gas channel (2-112), the differential pressure detection pipe (2-11) is provided with a plurality of first air inlets (2-113) and a plurality of second inlets (2-114), the first gas inlets (2-113) are communicated with the high-pressure gas channel (2-111), the second gas inlets are communicated with the low-pressure gas channel (2-112), the upper part of the high-pressure gas channel (2-111) is communicated with a first gas channel (3-31), the low-pressure gas passage (2-112) is communicated with the second gas passage (3-32).
9. A gas flow measuring device according to claim 1, wherein: the cross section of the differential pressure detection pipe (2-11) is in a bullet head shape, the differential pressure detection pipe (2-11) comprises a first contact surface (2-115) and a second contact surface (2-116), the first contact surface (2-115) is located at one end of the differential pressure detection pipe (2-11) with a small size, the second contact surface (2-116) is located at one end of the differential pressure detection pipe (2-11) with a large size, the first air inlets (2-113) are located on the first contact surface (2-115), and the second air inlets are located on the second contact surface (2-116).
10. A gas flow measuring device according to claim 1, wherein: the thermal type flow detector (2-2) comprises a temperature sensor (2-21), a mass flow rate sensor (2-22) and a heater, wherein the temperature sensor (2-21) and the mass flow rate sensor (2-22) are arranged at the lower end of a differential pressure detection pipe (2-11), the heater is arranged inside the differential pressure detection pipe (2-11), the heater is connected with the mass flow rate sensor (2-22) to heat the mass flow rate sensor (2-22), and the temperature sensor (2-21) and the mass flow rate sensor (2-22) are electrically connected with a thermal type detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111412729.6A CN114046836B (en) | 2021-11-25 | 2021-11-25 | Gas flow measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111412729.6A CN114046836B (en) | 2021-11-25 | 2021-11-25 | Gas flow measurement device |
Publications (2)
| Publication Number | Publication Date |
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| CN114046836A true CN114046836A (en) | 2022-02-15 |
| CN114046836B CN114046836B (en) | 2025-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111412729.6A Active CN114046836B (en) | 2021-11-25 | 2021-11-25 | Gas flow measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935374A (en) * | 2022-07-26 | 2022-08-23 | 克拉玛依市富城天然气有限责任公司 | Control method and system for oil well natural gas flow metering process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476821U (en) * | 2009-07-03 | 2010-05-19 | 毛清芳 | Double-channel pore plate gas flow rate measuring device with bypass bridge path |
| CN210603403U (en) * | 2019-09-19 | 2020-05-22 | 光力科技股份有限公司 | Plug-in gas parameter detection probe rod and detector |
| CN213120668U (en) * | 2020-09-30 | 2021-05-04 | 迈科洛(广州)仪表有限公司 | Integrated differential pressure gas mass flowmeter |
| CN216846371U (en) * | 2021-11-25 | 2022-06-28 | 天地（常州）自动化股份有限公司 | Gas flow measuring device |
-
2021
- 2021-11-25 CN CN202111412729.6A patent/CN114046836B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476821U (en) * | 2009-07-03 | 2010-05-19 | 毛清芳 | Double-channel pore plate gas flow rate measuring device with bypass bridge path |
| CN210603403U (en) * | 2019-09-19 | 2020-05-22 | 光力科技股份有限公司 | Plug-in gas parameter detection probe rod and detector |
| CN213120668U (en) * | 2020-09-30 | 2021-05-04 | 迈科洛(广州)仪表有限公司 | Integrated differential pressure gas mass flowmeter |
| CN216846371U (en) * | 2021-11-25 | 2022-06-28 | 天地（常州）自动化股份有限公司 | Gas flow measuring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935374A (en) * | 2022-07-26 | 2022-08-23 | 克拉玛依市富城天然气有限责任公司 | Control method and system for oil well natural gas flow metering process |
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| Publication number | Publication date |
|---|---|
| CN114046836B (en) | 2025-02-11 |
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