CN216433104U - Measurement system for calculate high temperature gas flow based on pressure differential - Google Patents
Measurement system for calculate high temperature gas flow based on pressure differential Download PDFInfo
- Publication number
- CN216433104U CN216433104U CN202123110479.9U CN202123110479U CN216433104U CN 216433104 U CN216433104 U CN 216433104U CN 202123110479 U CN202123110479 U CN 202123110479U CN 216433104 U CN216433104 U CN 216433104U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- pressure sensor
- pressure
- section
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
本实用新型涉及一种基于压差计算高温气体流量的测量系统，包括同轴设置的第一管道、两个第二管道和两个连接管道，第一管道的进气端和出气端分别通过连接管道连接于第二管道，第一管道内过气断面的面积小于第二管道内过气断面的面积，且连接管道内过气断面的面积自第二管道向第一管道逐渐减小，测量系统还包括第一压力传感器和第二压力传感器。本实用新型便于工业化制造，当需要测量高温气体流量时，将其安装至待测量的高温风管，根据测得的压强PB、PA即可快速计算出气体流量，具有结构简单、设计合理、易于制造和安装、制造成本较低、使用便捷、实用性好、测量精度高等优点。
The utility model relates to a measurement system for calculating the flow rate of high-temperature gas based on differential pressure, comprising a coaxially arranged first pipeline, two second pipelines and two connecting pipelines, wherein the inlet end and the outlet end of the first pipeline are respectively connected by The pipeline is connected to the second pipeline, the area of the gas-passing section in the first pipeline is smaller than the area of the gas-passing section in the second pipeline, and the area of the gas-passing section in the connecting pipeline gradually decreases from the second pipeline to the first pipeline, the measuring system A first pressure sensor and a second pressure sensor are also included. The utility model is convenient for industrialized manufacture. When it is necessary to measure the high-temperature gas flow, it is installed on the high-temperature air duct to be measured, and the gas flow can be quickly calculated according to the measured pressures P B and P A , and has the advantages of simple structure and reasonable design. , Easy to manufacture and install, low manufacturing cost, easy to use, good practicability, and high measurement accuracy.
Description
Technical Field
The utility model belongs to the technical field of the industrial air conditioner, concretely relates to measurement system based on pressure differential calculates high temperature gas flow.
Background
At present, the conventional gas flowmeter is not suitable for high-temperature gas, but is suitable for the high-temperature gas flowmeter, and the price is expensive. Therefore, it is desirable to design a new high temperature gas flow measuring system that can operate in a high temperature environment and is relatively inexpensive.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem who exists among the prior art, provide a measurement system based on pressure differential calculates high temperature gas flow, effectively solve conventional gas flowmeter and can't work in high temperature environment, high temperature type flowmeter problem that the price is expensive.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
the utility model provides a measurement system based on pressure differential calculates high temperature gas flow, includes coaxial setting's first pipeline, two second pipelines and two connecting tube, the inlet end of first pipeline with give vent to anger the end and connect in the second pipeline through connecting tube respectively, cross the sectional area of gas in the first pipeline is less than the sectional area of gas in the second pipeline, and cross the sectional area of gas in the connecting tube and reduce to first pipeline from the second pipeline gradually, measurement system still includes the second pressure sensor who is used for measuring the cross section center department pressure of gas in the first pipeline and is used for measuring the cross section center department pressure of gas in the second pipeline of first pipeline inlet end department.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the first pipeline, the two second pipelines and the two connecting pipelines are of an integrally formed structure.
Further, the second pipeline is connected with a high-temperature air pipe flange of the industrial air conditioner.
Furthermore, the gas passing sections in the first pipeline and the second pipeline are both circular or rectangular.
Further, the measurement system also comprises a computer electrically connected to the first pressure sensor and the second pressure sensor.
Further, the first pressure sensor and the second pressure sensor are both micro differential pressure sensors.
Further, the measuring tubes of the first and second pressure sensors are inserted into the centers of the gas passing cross sections in the first and second pipes from the side walls of the first and second pipes, respectively.
The utility model has the advantages that: the utility model discloses be convenient for the industrial production, when the high temperature gas flow is measured to needs, will measurement system installs to the high temperature tuber pipe of volume of awaiting measuring, according to the pressure P that first pressure sensor and second pressure sensor surveyedB、PACan calculate the gas flow in the high temperature tuber pipe fast, have simple structure, reasonable in design, easily make and install, manufacturing cost is lower, use advantage such as convenient, the practicality is good, measurement accuracy height, compare in current expensive high temperature type flowmeter, have more competitive advantage in the market.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of the present invention;
FIG. 2 is a side view (from the direction of airflow) of an embodiment of the present invention;
fig. 3 is a side view (viewed in the countercurrent direction) of another embodiment of the present invention.
In the figure:
1. the device comprises a first pipeline, a second pipeline, a connecting pipeline, a first pressure sensor, a second pressure sensor, a first pipeline, a second pipeline, a connecting pipeline, a first pressure sensor, a second pressure sensor, a measuring pipe, a second pressure sensor, a computer and a computer.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and fig. 2, the utility model relates to a measurement system for calculate high temperature gas flow based on pressure differential, including coaxial first pipeline 1, two second pipelines 2 and two connecting tube 3 that set up, the inlet end of first pipeline 1 and the end of giving vent to anger are connected in second pipeline 2 through connecting tube 3 respectively. The area of the air passing section in the first pipeline 1 is smaller than that of the air passing section in the second pipeline 2, and the area of the air passing section in the connecting pipeline 3 is gradually reduced from the second pipeline 2 to the first pipeline 1. The measuring system further comprises a first pressure sensor 4 and a second pressure sensor 5.
A first pressure sensor 4 is provided to facilitate rapid measurement of the pressure P at the centre of the gassing cross-section in the first conduit 1B. A second pressure sensor 5 is provided to facilitate a rapid measurement of the pressure P at the centre of the cross-section of the air in the second conduit 2 at the air inlet end of the first conduit 1A。
In this embodiment, the section of breathing in first pipeline 1 and the second pipeline 2 is circular to adaptation in the industrial air conditioner high temperature tuber pipe of the majority, the installation of being convenient for reduces the manufacturing degree of difficulty and cost simultaneously, is convenient for calculate gas flow in addition, thereby improves the convenience and the measuring accuracy that measurement system calculated.
The pressure P measured by the measurement system according to the present embodiment by the first pressure sensor 4 and the second pressure sensor 5B、PAThe gas flow in the high-temperature air pipe of the industrial air conditioner can be rapidly calculated, the efficiency is high, and the accuracy is high.
In this embodiment, first pipeline 1, two second pipelines 2 and two connecting tube 3 are preferred integrated into one piece structures to further reduce the manufacturing degree of difficulty and cost, improve simultaneously the utility model discloses a structure steadiness and operational reliability.
And the second pipeline 2 is connected with a high-temperature air pipe flange of an industrial air conditioner. Adopt flange joint, have advantages such as dismantle convenient, intensity is high, sealing performance is good, can further promote measurement system's practicality and use convenience effectively avoid simultaneously causing measuring error because the sealed problem that the installation leads to.
On the basis of the above embodiment, the present invention also has an optimized improvement to obtain further improved measurementPrecision and efficiency. As shown in fig. 1, the measuring system further comprises a computer 7 electrically connected to the first pressure sensor 4 and the second pressure sensor 5. The pressure P measured by the first pressure sensor 4 and the second pressure sensor 5B、PAAnd the gas flow in the high-temperature air pipe of the industrial air conditioner can be quickly obtained by utilizing the calculation software of the computer 7, so that the accuracy is high, and the efficiency is higher.
As shown in fig. 1, the first pressure sensor 4 and the second pressure sensor 5 are micro differential pressure sensors, such as Model 266-micro differential pressure sensors, which have more excellent temperature characteristics and long-term stability, and high measurement accuracy, and can further improve the operational reliability and stability of the present invention. The measuring tubes 6 of the first and second pressure sensors 4, 5 are inserted from the side walls of the first and second pipes 1, 2 to the center of the gas cross-section in the first and second pipes 1, 2, respectively. Thereby not only measuring the pressure P at the center of the air passing section in the first pipeline 1BAnd the pressure P at the center of the gas passing section in the second pipeline 2 at the gas inlet end of the first pipeline 1AAnd the accuracy is higher, and then promote the precision of the interior gas flow measurement result of high temperature tuber pipe.
The working principle of the measuring system in the embodiment is as follows:
when in use, the second pipeline 2 of the measuring system is assembled to a high-temperature air pipe of an industrial air conditioner by using a flange. P is measured by the second pressure sensor 5 and the first pressure sensor 4AAnd PBThe data are transmitted to a computer 7, and the gas flow Q is obtained by calculationV。
The calculation process is as follows:
according to the constant total flow energy equation:
and continuity equation:
in the formula: pAThe pressure intensity at the center of the air passing section in the second pipeline 2 at the air inlet end of the first pipeline 1 is measured by a second pressure sensor 5; pBThe pressure intensity at the center of the air passing section in the first pipeline 1 is measured by a first pressure sensor 4;
VAis the velocity V at the center of the cross section of the air passing in the second pipeline 2 at the air inlet end of the first pipeline 1BThe velocity at the center of the cross section of the air passing through the first pipeline 1 is unknown;
ρ is the gas density, known;
g is the acceleration of gravity, known;
dAis the diameter d of the air passing section in the second pipeline 2 at the air inlet end of the first pipeline 1BIn order to be the diameter of the transit section in the first conduit 1, is known.
Therefore, substituting the continuity equation into the energy equation can solve
So that the gas flow rate is
In the formula: pressure PAAnd PBHas the unit of Pa, the speed VAAnd VBHas the unit of m/s and the diameter dAAnd dBIn m, the unit of the gas density ρ is kg/m3The unit of gravitational acceleration g is m/s2。
Thus according to measured PA、PBThe gas flow in the high-temperature air pipe of the industrial air conditioner can be quickly calculated.
The measuring system is convenient for industrial manufacturing, and when the flow of high-temperature gas needs to be measured, the measuring system is installed on a high-temperature air pipe to be measured, and the first pressure sensor is used for measuring the flow of the high-temperature gas according to the requirement4 and the pressure P measured by the second pressure sensor 5B、PACan pass through
The gas flow in the high-temperature air pipe is rapidly calculated, and the high-temperature air pipe has the advantages of simple structure, reasonable design, easiness in manufacturing and installation, lower manufacturing cost, convenience in use, good practicability, high measurement precision and the like, and has competitive advantages in the market compared with the existing high-temperature flow meter with high price.
Fig. 3 shows another embodiment of the present invention. In this embodiment, the other structures of the measurement system are substantially the same as those of the first embodiment, except that the cross-section of the air passing through the first pipeline 1 and the second pipeline 2 is rectangular, so as to adapt to the high-temperature air ducts of a few industrial air conditioners, facilitate installation, reduce manufacturing difficulty and cost, and facilitate calculation of the air flow, thereby improving calculation convenience and measurement accuracy of the measurement system.
The pressure P measured by the measurement system according to the present embodiment by the first pressure sensor 4 and the second pressure sensor 5B、PAThe gas flow in the high-temperature air pipe of the industrial air conditioner can be rapidly calculated, the efficiency is high, and the accuracy is high.
In addition, in actual production, the gas passing cross section in the first pipeline 1 and the second pipeline 2 can be designed into other shapes according to needs.
The utility model discloses in, the equipment and the subassembly that do not describe the structure are commercial equipment or subassembly.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A measuring system for calculating the flow of high-temperature gas based on differential pressure is characterized by comprising a first pipeline (1), two second pipelines (2) and two connecting pipelines (3) which are coaxially arranged, the air inlet end and the air outlet end of the first pipeline (1) are respectively connected with the second pipeline (2) through a connecting pipeline (3), the area of the air passing section in the first pipeline (1) is smaller than that of the air passing section in the second pipeline (2), and the area of the air passing section in the connecting pipeline (3) is gradually reduced from the second pipeline (2) to the first pipeline (1), the measurement system further comprises a first pressure sensor (4) for measuring the pressure in the first conduit (1) at the centre of the gassing cross-section and a second pressure sensor (5) for measuring the pressure in the second conduit (2) at the inlet end of the first conduit (1) at the centre of the gassing cross-section.
2. The measuring system according to claim 1, characterized in that the first pipe (1), the two second pipes (2) and the two connecting pipes (3) are of an integrally formed structure.
3. Measuring system according to claim 2, characterized in that the second duct (2) is flanged to a high temperature air duct of an industrial air conditioner.
4. A measuring system according to claim 1, characterized in that the cross-section of the air flow in the first (1) and second (2) ducts is circular or rectangular.
5. The measuring system according to claim 1, characterized in that it further comprises a computer (7) electrically connected to the first pressure sensor (4) and the second pressure sensor (5).
6. The measuring system according to claim 1 or 5, characterized in that the first pressure sensor (4) and the second pressure sensor (5) are each micro-differential pressure sensors.
7. A measuring system according to claim 6, characterized in that the measuring tubes (6) of the first (4) and second (5) pressure sensors are inserted from the side walls of the first (1) and second (2) duct, respectively, to the centre of the cross-section of the first (1) and second (2) duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123110479.9U CN216433104U (en) | 2021-12-13 | 2021-12-13 | Measurement system for calculate high temperature gas flow based on pressure differential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123110479.9U CN216433104U (en) | 2021-12-13 | 2021-12-13 | Measurement system for calculate high temperature gas flow based on pressure differential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216433104U true CN216433104U (en) | 2022-05-03 |
Family
ID=81316808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123110479.9U Active CN216433104U (en) | 2021-12-13 | 2021-12-13 | Measurement system for calculate high temperature gas flow based on pressure differential |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216433104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115452069A (en) * | 2022-09-30 | 2022-12-09 | 华能长江环保科技有限公司 | A flow effect type gas flow measurement system and method |
-
2021
- 2021-12-13 CN CN202123110479.9U patent/CN216433104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115452069A (en) * | 2022-09-30 | 2022-12-09 | 华能长江环保科技有限公司 | A flow effect type gas flow measurement system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100538307C (en) | A kind of wind tunnel calibration method for large flow gas pipeline averaging velocity tube flowmeter | |
| CN101303367B (en) | Standard flow type micro wind speed calibration apparatus and calibration method thereof | |
| CN204831400U (en) | Steady voltage formula low discharge wind speed amount of wind measuring device | |
| CN216433104U (en) | Measurement system for calculate high temperature gas flow based on pressure differential | |
| CN106768097A (en) | A kind of inside and outside tubular type gas flowmeter and flow rate testing methods | |
| CN212082473U (en) | Matrix flowmeter | |
| CN115752608A (en) | Gas ultrasonic flowmeter and gas metering system | |
| CN207300336U (en) | A kind of people's air defense apparatus for measuring air quantity | |
| CN210834953U (en) | Pitot tube sensor for variable air volume valve | |
| KR101789543B1 (en) | Average pitot tube type flow meter | |
| CN203479343U (en) | Bi-directional vertical and horizontal integrated rotor flow meter | |
| CN116337167B (en) | A double-bend pipe flow rate and pressure measurement structure and method | |
| CN2399729Y (en) | Anti-sand wind speed profile pitot tube | |
| CN204988382U (en) | Amount of wind measuring transducer | |
| CN201463944U (en) | Internal type V-cone flowmeter | |
| CN111157061A (en) | Air diffuser air quantity display air port and air quantity testing method | |
| CN115585860A (en) | Multi-point measurement type pollutant calculation system | |
| CN212082475U (en) | Flow measuring device | |
| CN101191738A (en) | Differential pressure type liquid flowmeter | |
| CN206146471U (en) | But wide -range linearity variable area annular orifice flow device | |
| CN211904246U (en) | Balance flowmeter with temperature and pressure compensation | |
| CN201672941U (en) | Chimney smoke flow measuring device | |
| CN201748937U (en) | Special large-caliber gas flowmeter | |
| CN101655381A (en) | Circulating cooling water flow measuring method of condenser for steam turbine and on-line measuring device thereof | |
| CN218628452U (en) | Capacitive external gas flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Measurement System for High Temperature Gas Flow Rate Based on Pressure Difference Calculation Effective date of registration: 20230927 Granted publication date: 20220503 Pledgee: Wuhan rural commercial bank Limited by Share Ltd. economic and Technological Development Zone Branch Pledgor: WUHAN ANLIJIE ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2023980058894 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220503 Pledgee: Wuhan rural commercial bank Limited by Share Ltd. economic and Technological Development Zone Branch Pledgor: WUHAN ANLIJIE ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2023980058894 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A measurement system for calculating high-temperature gas flow based on pressure difference Granted publication date: 20220503 Pledgee: Wuhan rural commercial bank Limited by Share Ltd. economic and Technological Development Zone Branch Pledgor: WUHAN ANLIJIE ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2024980043901 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220503 Pledgee: Wuhan rural commercial bank Limited by Share Ltd. economic and Technological Development Zone Branch Pledgor: WUHAN ANLIJIE ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2024980043901 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Measurement System for High Temperature Gas Flow Rate Based on Pressure Difference Calculation Granted publication date: 20220503 Pledgee: Wuhan rural commercial bank Limited by Share Ltd. economic and Technological Development Zone Branch Pledgor: WUHAN ANLIJIE ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2025980042628 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |