CN216668826U - Portable ventilation performance detection device - Google Patents
Portable ventilation performance detection device Download PDFInfo
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- CN216668826U CN216668826U CN202220132489.8U CN202220132489U CN216668826U CN 216668826 U CN216668826 U CN 216668826U CN 202220132489 U CN202220132489 U CN 202220132489U CN 216668826 U CN216668826 U CN 216668826U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a portable ventilation performance detection device, which mainly comprises a detection host (1), a flow nozzle (2) and a pressure collection hose (3); the detection host (1) and the flow nozzle (2) are normally connected through a pressure collecting hose (3); the flow nozzle (2) essentially comprises: the device comprises an air inlet shell (8), a stainless steel grating A (11), a pressure tube assembly mounting rack (10), a pressure tube assembly (9), a stainless steel grating B (23) and an air outlet shell (12); the components are connected in sequence; wherein the pressure pipe assembly (9) is fixedly arranged in a mounting rack (10) of the pressure pipe assembly. The portable ventilation performance detection device has the advantages of high precision, low cost, convenience in use and the like.
Description
Technical Field
The utility model relates to a conventional ventilation performance detection device, in particular to a portable ventilation performance detection device.
Background
In practical work, the detection of the field ventilation air volume is carried out by adopting a proportional tube; but more than hosted detection scenarios typically all have ventilation ducts; the means for accurately measuring the air volume only with the vent is relatively few, so a hot-bulb type anemometer is usually adopted for measurement; but the measurement precision is relatively low, the measurement method does not meet the requirements of the current national standard, and the measurement result can only be used as a reference; therefore, the problem of accurately measuring the air quantity at the air outlet can not be solved at present.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problems, the applicant designs a portable ventilation performance detection device through intensive research, and the technical scheme is as follows:
a portable ventilation performance detection device mainly comprises: detecting a host, a flow nozzle and a pressure collecting hose; the detection host and the flow nozzle are normally connected through a pressure collecting hose; the flow nozzle mainly comprises: the device comprises an air inlet shell, a stainless steel grating A, a pressure tube assembly mounting rack, a pressure tube assembly, a stainless steel grating B and an air outlet shell, wherein the components are connected in sequence; wherein the pressure pipe assembly is fixedly arranged in the pressure pipe assembly mounting rack;
further, the pressure production pipe assembly mainly comprises: windward pressure sampling pipe, dynamic pressure sampling pipe, back wind pressure sampling pipe and static pressure sampling pipe; the components are fixedly connected with the pressure production pipe mounting seat; wherein the windward pressure sampling pipe and the dynamic pressure sampling pipe are fixedly arranged at the front part of the pressure sampling pipe mounting seat and are communicated with an independent cavity A inside the pressure sampling pipe mounting seat; the back wind pressure sampling pipe and the static pressure sampling pipe are fixedly arranged at the rear part of the pressure sampling pipe mounting seat and are communicated with another independent cavity B in the pressure sampling pipe mounting seat;
further, the detection host mainly comprises a differential pressure sensor and a computer; the differential pressure sensor is electrically connected with the computer;
furthermore, the windward pressure sampling pipe is in a cross shape and is fixedly connected with the mounting frame of the pressure sampling pipe assembly, and the windward pressure sampling pipe is ensured to be vertical to the windward side; at least three pressure sampling holes are respectively arranged on the upper side, the lower side, the left side and the right side of the pressure sampling pipe; the back wind pressure sampling pipe is vertically and fixedly arranged at the rear part of the pressure sampling pipe mounting seat in four directions of upper left, lower left, upper right and lower right, and the upper end of the back wind pressure sampling pipe is a pressure sampling opening;
furthermore, the dynamic pressure production pipe is connected with a dynamic pressure outlet on a mounting rack of the production pipe assembly; the static pressure production pipe is connected with a static pressure outlet on the production pipe assembly mounting rack;
furthermore, the two pressure production hoses are respectively connected with a dynamic pressure outlet and a static pressure outlet;
further, the pressure tube assembly further comprises a nut and a sealing ring, and the nut and the sealing ring are used for sealing and fixing the pressure tube assembly mounting frame.
The portable air volume detection device has the following beneficial effects:
1. the measurement precision of the ventilation volume can reach within 5 percent;
2. easy to carry — all components of the device disclosed in the present invention can be placed together in a 450mm by 300mm box;
3. small volume, low cost and convenient operation and use.
Drawings
FIG. 1 is a schematic structural view of a portable air ventilation detecting device disclosed in the present invention;
FIG. 2 is an exploded view of the flow nozzle 2 of the present invention;
fig. 3 is a schematic structural view of the pressure producing pipe assembly 9 of the present invention.
In the figure, 1, a detection host; 2. a flow nozzle; 3. a pressure production hose; 4. a differential pressure sensor; 5. a computer; 6. a dynamic pressure outlet; 7. a static pressure outlet; 8. an air inlet shell; 9. a production string assembly; 10. a pressure production pipe assembly mounting rack; 11. a stainless steel grating A; 12. an air outlet housing; 13. windward pressure sampling pipe; 14. a pressure collecting pipe is pressed; 15. a leeward pressure sampling pipe; 16. a static pressure sampling pipe; 17. a pressure production pipe mounting seat; 18. an independent cavity A; 19. an independent cavity B; 20. pressure extraction holes; 21. a nut; 22. a seal ring; 23. and a stainless steel grating B.
The specific implementation mode is as follows:
the following detailed description of embodiments of the utility model refers to the accompanying drawings in which:
as shown in fig. 1, 2 and 3, a portable air ventilation detecting device mainly comprises: the device comprises a detection host 1, a flow nozzle 2 and a pressure production hose 3; the detection host 1 and the flow nozzle 2 are normally connected through a pressure collection hose 3; the flow nozzle 2 mainly comprises: the device comprises an air inlet shell 8, a stainless steel grating A11, a pressure tube assembly mounting rack 10, a pressure tube assembly 9, a stainless steel grating B23 and an air outlet shell 12; the components are connected in sequence by adopting a screw mode and the like; wherein the pressure production pipe assembly 9 is fixedly arranged in a pressure production pipe assembly mounting rack 10; the production string assembly 9 mainly comprises: a windward pressure sampling pipe 13, a dynamic pressure sampling pipe 14, a leeward pressure sampling pipe 15 and a static pressure sampling pipe 16; the components are fixedly connected with a pressure production pipe mounting seat 17; the windward pressure sampling pipe 13 and the dynamic pressure sampling pipe 14 are fixedly arranged at the front part of the pressure sampling pipe mounting seat 17, and can be communicated with an independent cavity A18 in the pressure sampling pipe mounting seat 17 by adopting connection modes such as welding, screw thread and the like; the back wind pressure sampling pipe 15 and the static pressure sampling pipe 16 are fixedly arranged at the rear part of the pressure sampling pipe mounting seat 17 and can be communicated with another independent cavity B19 in the pressure sampling pipe mounting seat 17 by adopting connection modes such as welding, screw thread and the like; the independent cavity A18 and the independent cavity B19 are two independent cavities with a partition in the middle; the detection host 1 comprises a differential pressure sensor 4 and a computer 5; the differential pressure sensor 4 is electrically connected with the computer 5; the differential pressure sensor 4 can adopt a micro differential pressure sensor produced by Hitt company in America, the measuring range is 0-2000Pa, and a computer is a common type; the windward pressure sampling pipe 13 is in a cross shape, is fastened and hermetically connected with the pressure sampling pipe assembly mounting frame 10 through a nut 21 and a sealing ring 22 on the windward pressure sampling pipe, and ensures that the windward pressure sampling pipe 13 is perpendicular to the windward side; at least three pressure sampling holes 20 are respectively arranged at the upper side, the lower side, the left side and the right side of the pressure sampling pipe and are used for collecting the total ventilation pressure in the windward pipe; the back wind pressure sampling pipe 15 is fixedly arranged at the rear part of the pressure sampling pipe mounting seat 17 in four vertical directions of upper left, lower left, upper right and lower right, and the upper end of the back wind pressure sampling pipe is provided with a pressure sampling opening for collecting static wind pressure; the dynamic pressure sampling pipe 14 is connected with a dynamic pressure outlet 6 on the sampling pipe assembly mounting rack 10; the static pressure production pipe 16 is connected with a static pressure outlet 7 on the production pipe assembly mounting frame 10; the two pressure collecting hoses 3 are connected to the dynamic pressure outlet 6 and the static pressure outlet 7, respectively.
In the practical use process, the air inlet shell 8 of the flow nozzle 2 is in close contact with the measured air inlet, and the computer 5 on the detection host 1 is started: the wind in the measured tuyere passes through a stainless steel grid A11 in the flow nozzle 2 and at least 12 pressure collecting holes 20 in the pressure collecting pipe assembly 9, and is transmitted to a dynamic pressure collecting pipe 14, a dynamic pressure outlet 6, a pressure collecting hose 3 to a dynamic pressure input port in the differential pressure sensor 4; meanwhile, a pressure collecting port at the upper end of a leeward pressure collecting pipe 15 in the pressure collecting pipe assembly 9 collects the ventilation static pressure in the pipe and transmits the static pressure to a static pressure collecting pipe 16, a static pressure outlet 7, a pressure collecting hose 3 and a static pressure input port in the differential pressure sensor 4; at this time, the differential pressure sensor 4 acquires two data: and dynamic pressure and static pressure data are subjected to data model calculation through the computer 5, and accurate data such as the wind speed and the wind volume of the tested air vent are obtained in real time.
The embodiments of the present invention have been described in detail; however, the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. A portable ventilation performance detection device is characterized by mainly comprising: the device comprises a detection host (1), a flow nozzle (2) and a pressure collection hose (3); the detection host (1) and the flow nozzle (2) are normally connected through a pressure collecting hose (3); the flow nozzle (2) essentially comprises: the device comprises an air inlet shell (8), a stainless steel grating A (11), a pressure tube assembly mounting rack (10), a pressure tube assembly (9), a stainless steel grating B (23) and an air outlet shell (12); the components are connected in sequence; wherein the pressure pipe assembly (9) is fixedly arranged in a mounting rack (10) of the pressure pipe assembly.
2. A portable ventilation performance testing device according to claim 1, wherein the pressure production pipe assembly (9) mainly comprises: a windward pressure sampling pipe (13), a dynamic pressure sampling pipe (14), a leeward pressure sampling pipe (15) and a static pressure sampling pipe (16); the components are fixedly connected with a pressure production pipe mounting seat (17); wherein the windward pressure sampling pipe (13) and the dynamic pressure sampling pipe (14) are fixedly arranged at the front part of the pressure sampling pipe mounting seat (17) and are communicated with an independent cavity A (18) in the pressure sampling pipe mounting seat (17); the back wind pressure sampling pipe (15) and the static pressure sampling pipe (16) are fixedly arranged at the rear part of the pressure sampling pipe mounting seat (17) and are communicated with another independent cavity B (19) in the pressure sampling pipe mounting seat (17).
3. A portable ventilation performance detection device according to claim 1, wherein the detection host (1) mainly comprises a differential pressure sensor (4), a computer (5); the differential pressure sensor (4) is electrically connected with the computer (5).
4. The portable ventilation performance detection device according to claim 2, wherein the windward pressure sampling pipe (13) is cross-shaped, is fixedly connected with the pressure sampling pipe assembly mounting frame (10), and ensures that the windward pressure sampling pipe (13) is perpendicular to the windward side; at least three pressure sampling holes (20) are respectively arranged at the upper side, the lower side, the left side and the right side of the pressure sampling pipe; the back wind pressure sampling pipe (15) is vertically and fixedly arranged at the rear part of the pressure sampling pipe mounting seat (17) in four directions of upper left, lower left, upper right and lower right, and the upper end of the back wind pressure sampling pipe is a pressure sampling opening.
5. A portable ventilation performance testing device according to claim 2, wherein the dynamic pressure sampling pipe (14) is connected with a dynamic pressure outlet (6) on the sampling pipe assembly mounting frame (10); the static pressure production pipe (16) is connected with a static pressure outlet (7) on the production pipe assembly mounting frame (10).
6. The portable ventilation performance detection device according to claim 1, wherein the two pressure sampling hoses (3) are respectively connected to the dynamic pressure outlet (6) and the static pressure outlet (7).
7. The portable ventilation performance detection device as claimed in claim 1, wherein the pressure tube assembly (9) further comprises a nut (21) and a sealing ring (22) for sealing and fixing with the pressure tube assembly mounting frame (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220132489.8U CN216668826U (en) | 2022-01-18 | 2022-01-18 | Portable ventilation performance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220132489.8U CN216668826U (en) | 2022-01-18 | 2022-01-18 | Portable ventilation performance detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216668826U true CN216668826U (en) | 2022-06-03 |
Family
ID=81761959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220132489.8U Active CN216668826U (en) | 2022-01-18 | 2022-01-18 | Portable ventilation performance detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216668826U (en) |
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2022
- 2022-01-18 CN CN202220132489.8U patent/CN216668826U/en active Active
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