CN213239052U - Static pressure measuring device for air pipe - Google Patents
Static pressure measuring device for air pipe Download PDFInfo
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- CN213239052U CN213239052U CN202022560173.2U CN202022560173U CN213239052U CN 213239052 U CN213239052 U CN 213239052U CN 202022560173 U CN202022560173 U CN 202022560173U CN 213239052 U CN213239052 U CN 213239052U
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- 230000003068 static effect Effects 0.000 title claims abstract description 31
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 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
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an tuber pipe static pressure measuring device, establish the inner tube in the outer tube and set up the pressure head of getting at the outer tube tip including outer tube, cover, wherein the pressure head is round platform shape. The utility model has the advantages that: the measuring accuracy is high, easy maintenance and maintenance, difficult jam, 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 tuber pipe static 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. In order to obtain accurate air volume of the air duct, a static pressure measuring device is generally used to measure a static pressure signal in the air duct, and then a signal processing device is used to finally obtain an air volume value. Therefore, the accuracy of the static pressure measuring device is particularly important for obtaining an accurate air volume value, but because the cross section of the air duct is large, the flow velocity distribution of the internal air flow is not uniform, the online measurement of the air volume in the rectangular air duct cannot be realized by using the common Pitot-tube type static pressure measuring device, the measurement accuracy and precision are not high, the situation of signal blockage 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 an tuber pipe static pressure measuring device, measurement accuracy is high, convenient to use.
The technical solution of the utility model is that: the utility model provides an air pipe static pressure measuring device, includes the outer tube, the cover is established at the intraductal inner tube of outer tube and is set up the pressure head of getting at the outer tube end portion, and wherein gets the pressure head and be the round platform shape.
The pressure head of getting of round platform shape can play the water conservancy diversion effect, avoids the turbulent air current to get into the outer tube, effectively reduces because of the influence to pressure measurement of installation deviation and intraductal velocity gradient of tuber and flow skew angle, improves measuring accuracy.
The end part of the pressure taking head is provided with a closed end surface, and the closed end surface is provided with a pressure taking hole penetrating through the inner cavity. The closed end face can reduce the turbulence entering the pressure taking head, and the static wind pressure signal entering from the pressure taking hole is more stable.
The pressure taking hole is positioned at the vertical projection of the inner tube. The accuracy and the stability of getting the pressure can further be improved to the symmetry setting.
And a plurality of auxiliary pressure taking holes which penetrate through the inner cavity are uniformly distributed on the closed end surface. The auxiliary pressure tapping hole can balance the static pressure inside the pressure tapping head better, and the measuring accuracy is further improved.
The inner tube end does not extend beyond the outer tube end. The inner tube tip is less than the outer tube terminal surface, can further carry out the rectification to the motion air current by make full use of pressure head, makes the air current velocity of motion who gets into reduce, is favorable to forming the static pressure fast.
The inner tube extends to the end of the pressure taking head. The static pressure can be directly acquired conveniently, and the sensitivity of quick response of static pressure measurement is improved.
A plurality of flexible springs are uniformly distributed between the inner tube and the inner wall of the pressure taking head. The flexible spring can avoid collision between the outer wall of the inner pipe and the pressure taking head when the static pressure pipe is drawn out or inserted, and plays roles in damping and maintaining the distance.
The utility model has the advantages that: the measuring accuracy is high, easy maintenance and maintenance, difficult jam, long service life.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic bottom view of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a schematic bottom view of embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 6 is a schematic bottom view of embodiment 3 of the present invention;
1. the device comprises an outer pipe, 2, an inner pipe, 3, a pressure taking head, 4, a pressure taking hole, 5, a closed end face, 6, an auxiliary pressure taking hole, 7 and a flexible spring.
Detailed Description
Example 1:
referring to fig. 1-2, a static pressure measuring device for an air duct comprises an outer tube 1, an inner tube 2 sleeved in the outer tube 1, and a pressure measuring head 3 arranged at the end of the outer tube 1, wherein the pressure measuring head 3 is in a shape of a circular truncated cone. The end part of the pressure measuring head 3 is provided with a closed end surface 5, and the closed end surface 5 is provided with a pressure measuring hole 4 penetrating through the inner cavity. The pressure tapping hole 4 is positioned at the vertical projection of the inner tube 2.
The round platform-shaped pressure taking head 3 can play a role in guiding flow, avoids turbulent airflow from entering the outer pipe 1, effectively reduces the influence on pressure measurement caused by installation deviation and the velocity gradient and the flow deflection angle in the air pipe, and improves the accuracy of measurement. The closed end face 5 can reduce the turbulence entering the interior of the pressure taking head 3, and the static wind pressure signal entering from the pressure taking hole 4 is more stable. The end part of the inner pipe 2 does not exceed the end part of the outer pipe 1, and the pressure taking head can be fully utilized to further rectify moving airflow, so that the moving speed of the entering airflow is reduced, and static pressure is formed quickly.
Example 2:
referring to fig. 3-4, the air duct static pressure measuring device comprises an outer tube 1, an inner tube 2 sleeved in the outer tube 1, and a pressure measuring head 3 arranged at the end of the outer tube 1, wherein the pressure measuring head 3 is in a shape of a circular truncated cone. The end part of the pressure measuring head 3 is provided with a closed end surface 5, and the closed end surface 5 is provided with a pressure measuring hole 4 penetrating through the inner cavity. A plurality of auxiliary pressure taking holes 6 which run through the inner cavity are uniformly distributed on the closed end surface 5. The inner tube 2 extends to the end part of the pressure taking head 3, so that the static pressure can be directly obtained conveniently, and the sensitivity of quick response of static pressure measurement is improved.
Example 3
Referring to fig. 5-6, the air duct static pressure measuring device comprises an outer tube 1, an inner tube 2 sleeved in the outer tube 1, and a pressure measuring head 3 arranged at the end of the outer tube 1, wherein the pressure measuring head 3 is in a shape of a circular truncated cone. The utility model provides an air duct static pressure measuring device, includes outer tube 1, the cover establishes inner tube 2 in outer tube 1 and sets up the pressure head 3 of getting at 1 tip of outer tube, wherein gets pressure head 3 and be the round platform shape. A plurality of flexible springs 7 are uniformly distributed between the inner tube 2 and the inner wall of the pressure taking head 3.
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 (7)
1. The utility model provides an tuber pipe static pressure measuring device which characterized in that: including outer tube, cover establish the inner tube in the outer tube and set up the pressure head of getting at the outer tube end portion, wherein get the pressure head and be the round platform shape.
2. The air duct static pressure measuring device according to claim 1, wherein: the end part of the pressure taking head is provided with a closed end surface, and the closed end surface is provided with a pressure taking hole penetrating through the inner cavity.
3. The air duct static pressure measuring device according to claim 2, wherein: the pressure taking hole is positioned at the vertical projection of the inner tube.
4. An air duct static pressure measuring device according to claim 3, wherein: and a plurality of auxiliary pressure taking holes which penetrate through the inner cavity are uniformly distributed on the closed end surface.
5. An air duct static pressure measuring device according to claim 1, 2, 3 or 4, characterized in that: the inner tube end does not extend beyond the outer tube end.
6. An air duct static pressure measuring device according to claim 1, 2, 3 or 4, characterized in that: the inner tube end extends to an end of the indenter head.
7. The air duct static pressure measuring device according to claim 6, wherein: a plurality of flexible springs are uniformly distributed between the inner tube and the inner wall of the pressure taking head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022560173.2U CN213239052U (en) | 2020-11-06 | 2020-11-06 | Static pressure measuring device for air pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022560173.2U CN213239052U (en) | 2020-11-06 | 2020-11-06 | Static pressure measuring device for air pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213239052U true CN213239052U (en) | 2021-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022560173.2U Active CN213239052U (en) | 2020-11-06 | 2020-11-06 | Static pressure measuring device for air pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213239052U (en) |
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2020
- 2020-11-06 CN CN202022560173.2U patent/CN213239052U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240313 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. |
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| TR01 | Transfer of patent right |