CN213118492U - Online measuring device for flow of rectangular air pipe - Google Patents
Online measuring device for flow of rectangular air pipe Download PDFInfo
- Publication number
- CN213118492U CN213118492U CN202022556041.2U CN202022556041U CN213118492U CN 213118492 U CN213118492 U CN 213118492U CN 202022556041 U CN202022556041 U CN 202022556041U CN 213118492 U CN213118492 U CN 213118492U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pipe
- rectangular air
- air pipe
- full
- 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
- 238000010079 rubber tapping Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000004378 air conditioning Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a rectangle tuber pipe flow on-line measuring device sets up outside the rectangle tuber pipe, including concentrating cavity and input and concentrating the communicating signal processor of cavity, still including setting up a plurality of total pressure in the casing and get the pipe wherein each total pressure get the one end of pressing the pipe respectively with concentrate the high-pressure side of cavity and communicate with each other, another free end extends the entering in the rectangle tuber pipe, the equipartition is equipped with the pressure hole of getting that a plurality of link up the inner chamber on the windward side lateral wall of total pressure pipe free end. The utility model has the advantages that: the online measurement precision is high, and easy maintenance and maintenance are difficult for blockking up, long service life.
Description
Technical Field
The utility model belongs to the technical field of air conditioning ventilation system amount of wind measures, especially, relate to rectangle tuber pipe total pressure measuring device.
Background
The air output of the air conditioning and ventilating system is not only directly related to the change of indoor heat load, but also directly influences the energy saving and comfort of the whole air conditioning system. The general air conditioning ventilation system adopts the rectangular air pipe to supply air, because the air duct cross-section of the rectangular air pipe structure is large, the airflow velocity distribution is uneven, the online measurement of the air quantity in the rectangular air pipe cannot be realized by using the traditional full-pressure measuring device, the measurement accuracy and precision are not high, the signal blockage condition is easy to occur, the maintenance workload is large, and inconvenience exists in the use process.
Disclosure of Invention
The utility model aims at providing a rectangle tuber pipe flow on-line measuring device can the on-line measuring flow through the intraductal full pressure signal of tuber, and measurement accuracy is high, convenient to use.
The technical solution of the utility model is that: the utility model provides a rectangle tuber pipe flow on-line measuring device, sets up outside the rectangle tuber pipe, including concentrating cavity and input and the communicating signal processor of cavity with concentrating, still including setting up a plurality of total pressure pipe in the casing wherein each total pressure pipe's one end respectively with concentrate the high-pressure end of cavity and communicate with each other, another free end extends and gets into in the rectangle tuber pipe, on the windward side lateral wall of total pressure pipe free end equipartition be equipped with a plurality of pressure hole of lining up the inner chamber.
The pressure-taking holes arranged on all the full-pressure-taking pipes can respectively obtain pressure signals at different positions in the rectangular air pipe and send the pressure signals to the high-pressure end of the centralized cavity to take a high-pressure average value, the full-pressure measurement signals after average processing are input into the signal processor, the centralized cavity is also provided with a low-pressure end capable of measuring the static pressure of the air pipe, the signal processor can calculate and obtain the average air volume in the rectangular air pipe on line according to the full-pressure signals and the static pressure signals which are measured on line, the obtained full-pressure average value is relatively accurate because the full-pressure-taking positions are widely distributed in the rectangular air pipe, the air volume precision obtained by on-line measurement is high, only the pressure-taking pipes of the whole measuring device are dispersedly arranged in the rectangular air pipe, the resistance is small.
The side wall of the rectangular air pipe is provided with a plurality of measuring holes, and the free end of each full-pressure tapping pipe is inserted into the rectangular air pipe through the measuring holes respectively. The full-pressure tapping pipe is arranged in an inserting mode, so that the replacement and cleaning are convenient, and the use is convenient.
Flanges are arranged on the side wall of the rectangular air pipe outside the measuring hole, and the free end of each full-pressure tapping pipe is inserted into the measuring hole along the flange. The effect of the reinforcing structure can be played through flange connection, the pressure pipe is convenient to fix, meanwhile, the sealing performance of the position of the measuring hole can be increased, and a certain anti-seismic effect is achieved.
The lengths of all the full-pressure sampling pipes extending into the rectangular air pipe are the same, and the full-pressure sampling pipes are arranged in parallel at equal intervals along the width direction of the rectangular air pipe. The equal-height full-pressure sampling pipe is arranged so that the pressure sampling holes can be uniformly distributed, and a pressure value with higher precision is obtained.
The full-pressure-taking pipes extending into the rectangular air pipe are arranged in parallel at equal intervals along the width direction of the rectangular air pipe, and the length of each full-pressure-taking pipe is gradually reduced from two sides of the width of the rectangular air pipe to the center direction. The full-pressure tapping pipe with unequal heights can reduce resistance to airflow in the air pipe, and interference to air volume is reduced on the premise of ensuring measurement accuracy.
The utility model has the advantages that: the online measurement precision is high, and easy maintenance and maintenance are difficult for blockking up, long service life.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic side view of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
1. rectangular tuber pipe, 2, casing, 3, total pressure pipe, 4, concentrated cavity, 5, signal processor, 6, pressure hole, 7, measuring hole, 8, flange, 9, heat-resisting silica gel.
Detailed Description
Example 1:
referring to fig. 1-2, an online flow measuring device for a rectangular air duct is arranged outside a rectangular air duct 1, and comprises a plurality of full-pressure-taking pipes 3 arranged in a shell 2, a concentration chamber 4 and a signal processor 5, wherein one end of each full-pressure-taking pipe 3 is respectively communicated with a high-pressure end of the concentration chamber 4, the other free end of each full-pressure-taking pipe extends into the rectangular air duct 1, the concentration chamber 4 is provided with a low-pressure end for measuring static pressure in the air duct, an input end of the signal processor 5 is communicated with the concentration chamber 4, and online air volume can be obtained by calculation according to pressure difference. A plurality of pressure taking holes 6 which penetrate through the inner cavity are uniformly distributed on the windward side wall of the free end of the full-pressure taking pipe 3. The full-pressure sampling pipes 3 extending into the rectangular air pipe 1 are the same in length and are arranged in parallel at equal intervals along the width direction of the rectangular air pipe 1. The side wall of the rectangular air pipe 1 is provided with a plurality of measuring holes 7, and the free end of each full-pressure tapping pipe 3 is inserted into the rectangular air pipe 1 through the measuring holes 7. And flanges 8 are arranged on the side walls of the rectangular air pipes 1 outside the measuring holes 7, and the free ends of all the full-pressure sampling pipes 3 are respectively inserted into the measuring holes 7 along the flanges 8. The flange 8 can be bonded with heat-resistant silica gel 9 to improve the sealing property and the shock resistance.
Example 2:
referring to fig. 3, the device for measuring the flow of the rectangular air pipe on line is arranged outside a rectangular air pipe 1 and comprises a plurality of full-pressure-taking pipes 3 arranged in a shell 2, a concentration chamber 4 and a signal processor 5, wherein one end of each full-pressure-taking pipe 3 is respectively communicated with the concentration chamber 4, the other free end of each full-pressure-taking pipe extends into the rectangular air pipe 1, the input end of the signal processor 5 is communicated with the concentration chamber 4, and a plurality of pressure-taking holes 6 penetrating through an inner cavity are uniformly distributed on the windward side wall of the free end of each full-pressure-taking pipe 3. Each full-pressure tapping pipe 3 extending into the rectangular air pipe 1 is arranged in parallel at equal intervals along the width direction of the rectangular air pipe 1, and the length of each full-pressure tapping pipe 3 is gradually reduced towards the center direction along the two sides of the width of the rectangular air pipe 1. The side wall of the rectangular air pipe 1 is provided with a plurality of measuring holes 7, and the free end of each full-pressure tapping pipe 3 is inserted into the rectangular air pipe 1 through the measuring holes 7. And flanges 8 are arranged on the side walls of the rectangular air pipes 1 outside the measuring holes 7, and the free ends of all the full-pressure sampling pipes 3 are respectively inserted into the measuring holes 7 along the flanges 8. The flange 8 can be bonded with heat-resistant silica gel 9 to improve the sealing property and the shock resistance.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included within the scope of the present invention.
Claims (5)
1. The utility model provides a rectangle tuber pipe flow on-line measuring device, sets up outside the rectangle tuber pipe, including concentrating cavity and input and the communicating signal processor of concentrated cavity, its characterized in that: the wind-pressure-measuring pipe is characterized by further comprising a plurality of full-pressure-measuring pipes arranged in the shell, wherein one end of each full-pressure-measuring pipe is communicated with the high-pressure end of the concentration cavity, the other free end of each full-pressure-measuring pipe extends into the rectangular air pipe, and a plurality of pressure-measuring holes penetrating through the inner cavity are uniformly distributed in the windward side wall of the free end of each full-pressure-measuring pipe.
2. The rectangular air pipe flow online measuring device according to claim 1, wherein: the side wall of the rectangular air pipe is provided with a plurality of measuring holes, and the free end of each full-pressure tapping pipe is inserted into the rectangular air pipe through the measuring holes respectively.
3. The rectangular air pipe flow online measuring device according to claim 2, characterized in that: flanges are arranged on the side wall of the rectangular air pipe outside the measuring hole, and the free end of each full-pressure tapping pipe is inserted into the measuring hole along the flange.
4. The rectangular air pipe flow online measuring device according to claim 1, 2 or 3, wherein: the lengths of all the full-pressure sampling pipes extending into the rectangular air pipe are the same, and the full-pressure sampling pipes are arranged in parallel at equal intervals along the width direction of the rectangular air pipe.
5. The rectangular air pipe flow online measuring device according to claim 1, 2 or 3, wherein: the full-pressure-taking pipes extending into the rectangular air pipe are arranged in parallel at equal intervals along the width direction of the rectangular air pipe, and the length of each full-pressure-taking pipe is gradually reduced from two sides of the width of the rectangular air pipe to the center direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022556041.2U CN213118492U (en) | 2020-11-06 | 2020-11-06 | Online measuring device for flow of rectangular air pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022556041.2U CN213118492U (en) | 2020-11-06 | 2020-11-06 | Online measuring device for flow of rectangular air pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213118492U true CN213118492U (en) | 2021-05-04 |
Family
ID=75667864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022556041.2U Active CN213118492U (en) | 2020-11-06 | 2020-11-06 | Online measuring device for flow of rectangular air pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213118492U (en) |
-
2020
- 2020-11-06 CN CN202022556041.2U patent/CN213118492U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201548557U (en) | Wind speed wind and wind quantity measuring device | |
| CN102353410B (en) | Method and device utilizing trace gas to measure air channel volume | |
| CN201281614Y (en) | Air quantity measuring device of air quantity change end device | |
| CN213118492U (en) | Online measuring device for flow of rectangular air pipe | |
| CN213120670U (en) | High-precision rectangular air pipe air supply flow online measuring device | |
| CN201464488U (en) | A honeycomb air duct flow equalization speed measuring device | |
| CN206563411U (en) | Air quantity is monitored and the integrated air quantity variable end device of regulation | |
| US11391656B2 (en) | Pressure probes and pressure measurements in airflow | |
| CN112254774A (en) | High-precision rectangular air pipe air supply flow online measuring device | |
| CN211576248U (en) | Special wind quantity and wind pressure measuring sheet for ventilation and air conditioner | |
| WO2022110715A1 (en) | Differential pressure type flow sensor and ventilator | |
| CN111157062A (en) | Air volume display tuyere and air volume detection method | |
| CN212082473U (en) | Matrix flowmeter | |
| CN111157061A (en) | Air diffuser air quantity display air port and air quantity testing method | |
| CN215677166U (en) | Non-uniform flow field gas flow measurement system | |
| CN201203445Y (en) | Engine air inlet heat type gas mass flowmeter | |
| CN102680037B (en) | Air quantity differential pressure calibration method applied to liquid cooling type frame | |
| CN207300336U (en) | A kind of people's air defense apparatus for measuring air quantity | |
| CN216433104U (en) | Measurement system for calculate high temperature gas flow based on pressure differential | |
| CN202582616U (en) | Integrated intelligent Verabar flow meter | |
| CN103542896A (en) | Large diameter gas measuring meter | |
| CN211346921U (en) | Air quantity display air port | |
| CN213239052U (en) | Static pressure measuring device for air pipe | |
| CN2398617Y (en) | Probe for measuring flow | |
| CN2672621Y (en) | Porous even speed wind amount measurer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240315 Address after: 510000 No. 204 Huanshi West Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU METRO DESIGN & RESEARCH INSTITUTE Co.,Ltd. Country or region after: China Patentee after: 'SINRO AIR-CONDITIONING (FOGANG) CO.,LTD. Patentee after: Guangzhou Kehui Energy Co.,Ltd. Address before: 510000 No. 204 Huanshi West Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU METRO DESIGN & RESEARCH INSTITUTE Co.,Ltd. Country or region before: China Patentee before: 'SINRO AIR-CONDITIONING (FOGANG) CO.,LTD. |