CN203534645U - Pitot flow sensor provided with mounting mark - Google Patents
Pitot flow sensor provided with mounting mark Download PDFInfo
- Publication number
- CN203534645U CN203534645U CN201320736147.8U CN201320736147U CN203534645U CN 203534645 U CN203534645 U CN 203534645U CN 201320736147 U CN201320736147 U CN 201320736147U CN 203534645 U CN203534645 U CN 203534645U
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- CN
- China
- Prior art keywords
- pitot
- connecting pipe
- flow sensor
- packing box
- guide tube
- 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.)
- Expired - Lifetime
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- 230000003068 static effect Effects 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 abstract description 26
- 210000004907 gland Anatomy 0.000 abstract description 24
- 239000012530 fluid Substances 0.000 abstract description 18
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
A pitot flow sensor provided with a mounting mark comprises a pressure guide tube, wherein an inner tube is arranged in the pressure guide tube, a pitot tube orifice and a static tube orifice are formed in the upper end, a pitot hole communicated with the pressure guide tube and a static hole communicated with the inner tube are formed in a lower-end pressure tapping head, and the opening directions of the pitot hole and the static hole are opposite; and a T-shaped mark is formed in an outer tube wall above the pressure guide tube, the horizontal line of the T-shaped mark is perpendicular to the axis of the pressure guide tube, the vertical line of the T-shaped mark is parallel to the axis of the pressure guide tube and located on a plane where the opening direction of the pitot hole and the axis of the pressure guide tube are located. During mounting, the pitot flow sensor is inserted into a fluid transportation pipeline through a gland packing box, a distance from the horizontal line to the gland packing box is reserved outside the gland packing box, the gland packing box is filled with packing and a gland of the gland packing box is compressed, and meanwhile, the pressure guide tube of the pitot flow sensor is rotated to align the vertical line of the T-shaped mark to the incoming flow direction of the fluid transportation pipeline, so that the pitot flow sensor can be mounted on the fluid transportation pipeline easily and accurately.
Description
Technical field
The utility model relates to the adjustment notch of a kind of bi toba flow sensor, particularly a kind of bi toba flow sensor.
Background technology
In producing and living, fluid is carried with pipeline mostly, needs the flow of measuring channel inner fluid, for the flow of pipeline inner fluid need to be installed bi toba flow sensor on pipeline when carrying fluid with pipeline.
Bi toba flow sensor is the flow sensor that the pitot tube principle design according to French scientist HPitot invention forms.Pitot tube claims again Pitot tube, and bar is pressure unit, and bi toba flow sensor is to adopt the principle of pitot tube to measure the stagnation pressure of fluid and the sensing element of static pressure.The predecessor of bi toba flow meter is the intelligent probe formula flowmeter of the Chinese professor Xu Xiangdong of Tsing-Hua University invention.
Bi toba flow sensor has Straight connecting pipe, in connecting pipe, there is inner tube, there is the stagnation pressure mouth of pipe upper end of connecting pipe, there is the static pressure mouth of pipe upper end of inner tube, the lower end of connecting pipe is connected with pressure head, there are the pitot hole communicating with the inner chamber of connecting pipe and the baroport communicating with inner tube, the aperture opposite direction of pitot hole and baroport in the lower end of pressure head.
During use, the Straight connecting pipe of bi toba flow sensor is vertically inserted in fluid-transporting tubing from the tube wall of fluid-transporting tubing, allow the center of pitot hole and baroport on the axis of pipeline, pitot hole is facing to the flow path direction that comes of fluid, and baroport is facing to the flow path direction that goes of fluid.When fluid flows in pipeline, at the stagnation pressure interface of connecting pipe upper end and stagnation pressure and the static pressure of static pressure interface difference output channel inner fluid, stagnation pressure and static pressure with the fluid that flowing in pipeline, the parameters such as temperature, density and pipeline section in conjunction with fluid, can calculate the flow of pipeline inner fluid by fluid mechanics principle with flow integrator.
While bi toba flow sensor being installed on fluid-transporting tubing, have the following steps: on the tube wall of fluid-transporting tubing, open circular hole, welding flange short circuit on circular hole, on flange pup joint, connect ball valve, another valve port at ball valve connects airtight and watertight padding sealed letter, allow flange pup joint, the axis of ball valve and airtight and watertight padding sealed letter is on same straight line, the axis of this straight-line pass fluid-transporting tubing is also vertical with the axis of fluid-transporting tubing, open ball valve, from gland packing box insertion bi toba flow sensor suitable for reading, allow the pitot hole of lower end of pressure-taking head of Pitot Pa flow sensor and the center of baroport on the axis of fluid-transporting tubing, and allow pitot hole face toward the flow path direction that comes of fluid, at gland packing box, pack filler into, press seal junk ring, bi toba flow sensor is arranged on fluid-transporting tubing.
While bi toba flow sensor being installed by above-mentioned steps, the center of the pitot hole of the lower end of pressure-taking head of Pitot Pa flow sensor and baroport is placed on exactly on the axis of fluid-transporting tubing, and allow pitot hole face toward the flow path direction that comes of fluid, be subject to the impact of a lot of dimensional parameters, as the length of bi toba flow sensor, flange pup joint length after welding, the length of ball valve, the length of gland packing box, the internal diameter of fluid-transporting tubing and wall thickness, these dimensional parameters are uncertain a bit, can only be to measure in erecting stage, owing to there is no the mark of fixed measure on bi toba flow sensor, during installation, there is no size datum, cause and be not easy to install exactly very much bi toba flow sensor on fluid-transporting tubing.
In prior art, there is no the bi toba flow sensor that can be easy to and install exactly on fluid-transporting tubing.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes a kind of bi toba flow sensor with adjustment notch that can be easy to and install on fluid-transporting tubing exactly.
The utility model is realized with the following method.
The bi toba flow sensor with adjustment notch has Straight connecting pipe, in connecting pipe, there is inner tube, there is the stagnation pressure mouth of pipe upper end of connecting pipe, there is the static pressure mouth of pipe upper end of inner tube, the lower end of connecting pipe is connected with pressure head, there are the pitot hole communicating with the inner chamber of connecting pipe and the baroport communicating with inner tube in the lower end of pressure head, the aperture opposite direction of pitot hole and baroport, on the outer tube wall above connecting pipe, there is T font mark, the horizontal line of T font mark is vertical with the axis of connecting pipe, the vertical line of T font mark is parallel with the axis of connecting pipe, the vertical line of T font mark in the axis institute of the aperture of pitot hole direction and connecting pipe in the plane.
On the outer tube wall of connecting pipe of the present utility model top, have T font mark, the horizontal line of T font mark is vertical with the axis of connecting pipe, between horizontal line and pitot hole center, has fixing distance.
Before installation, measure exactly internal diameter and the wall thickness of fluid-transporting tubing, welding flange short circuit on circular hole on fluid-transporting tubing, after flange pup joint mounting ball valve and gland packing box, measure exactly flange pup joint, the length of ball valve and gland packing box, with the fixed range between horizontal line and pitot hole center, deduct flange pup joint, the length of ball valve and gland packing box deducts internal diameter and the wall thickness of fluid-transporting tubing again, be exactly that horizontal line is to the distance between gland packing box, during installation, the utility model is inserted in fluid-transporting tubing from gland packing box, at gland packing box, reserve horizontal line outward to the distance between gland packing box, when packing filler into and compressing junk ring to gland packing box, rotate connecting pipe of the present utility model and the vertical line of T font mark is aimed to the flow path direction that comes of fluid-transporting tubing, the utility model makes to be easy to and to be arranged on fluid-transporting tubing exactly.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is that a kind of master with the bi toba flow sensor of adjustment notch who proposes according to scheme of the invention of the present utility model looks schematic diagram;
Fig. 2 is that schematic diagram cuts open in the side-looking office of Fig. 1.
Embodiment
Fig. 1, in Fig. 2, the bi toba flow sensor with adjustment notch has Straight connecting pipe 1, in connecting pipe, there is inner tube 2, there is the stagnation pressure mouth of pipe 3 upper end of connecting pipe, there is the static pressure mouth of pipe 4 upper end of inner tube, the lower end of connecting pipe is connected with pressure 5, there are the pitot hole 6 communicating with the inner chamber of connecting pipe and the baroport 7 communicating with inner tube in the lower end of pressure head, the aperture opposite direction of pitot hole and baroport, on the outer tube wall above connecting pipe, there is T font mark 8, the horizontal line 9 of T font mark is vertical with the axis of connecting pipe, the vertical line 10 of T font mark is parallel with the axis of connecting pipe, the vertical line of T font mark in the axis institute of the aperture of pitot hole direction and connecting pipe in the plane.
On the outer tube wall of connecting pipe of the present utility model top, have T font mark, the horizontal line of T font mark is vertical with the axis of connecting pipe, between horizontal line and pitot hole center, has fixing distance L.
Before installation, measure exactly internal diameter R and the wall thickness Q of fluid-transporting tubing, welding flange short circuit 11 on circular hole on fluid-transporting tubing, after flange pup joint mounting ball valve 12 and gland packing box 13, measure exactly the length L 1 of flange pup joint, ball valve and gland packing box, use formula L-(L1+R+Q) calculate after, show that horizontal line is to the distance X between gland packing box.
During installation, the utility model is inserted in fluid-transporting tubing from gland packing box, at gland packing box, reserve horizontal line outward to the distance X between gland packing box, when packing filler into and compressing junk ring to gland packing box, rotate connecting pipe of the present utility model and the vertical line of T font mark is aimed to the flow path direction that comes of fluid-transporting tubing, the utility model makes to be easy to and to be arranged on fluid-transporting tubing exactly.
Claims (1)
1. a bi toba flow sensor with adjustment notch, there is Straight connecting pipe, in connecting pipe, there is inner tube, there is the stagnation pressure mouth of pipe upper end of connecting pipe, there is the static pressure mouth of pipe upper end of inner tube, the lower end of connecting pipe is connected with pressure head, there are the pitot hole communicating with the inner chamber of connecting pipe and the baroport communicating with inner tube in the lower end of pressure head, the aperture opposite direction of pitot hole and baroport, it is characterized in that: on the outer tube wall above connecting pipe, have T font mark, the horizontal line of T font mark is vertical with the axis of connecting pipe, the vertical line of T font mark is parallel with the axis of connecting pipe, the vertical line of T font mark in the axis institute of the aperture of pitot hole direction and connecting pipe in the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320736147.8U CN203534645U (en) | 2013-11-21 | 2013-11-21 | Pitot flow sensor provided with mounting mark |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320736147.8U CN203534645U (en) | 2013-11-21 | 2013-11-21 | Pitot flow sensor provided with mounting mark |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203534645U true CN203534645U (en) | 2014-04-09 |
Family
ID=50420840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320736147.8U Expired - Lifetime CN203534645U (en) | 2013-11-21 | 2013-11-21 | Pitot flow sensor provided with mounting mark |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203534645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631651A (en) * | 2019-11-14 | 2019-12-31 | 上海权宥环保科技有限公司 | Full pressure hole dredging type Pitotbar flow sensor |
| CN111121889A (en) * | 2020-01-17 | 2020-05-08 | 北京市天茏利华科技有限责任公司 | Split type combined parameter instrument |
-
2013
- 2013-11-21 CN CN201320736147.8U patent/CN203534645U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631651A (en) * | 2019-11-14 | 2019-12-31 | 上海权宥环保科技有限公司 | Full pressure hole dredging type Pitotbar flow sensor |
| CN110631651B (en) * | 2019-11-14 | 2024-05-24 | 毕托巴科技股份有限公司 | Full-pressure hole dredging type Pitotbar flow sensor |
| CN111121889A (en) * | 2020-01-17 | 2020-05-08 | 北京市天茏利华科技有限责任公司 | Split type combined parameter instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIAONING PITOTBA TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WANG ZHONGHUI Effective date: 20140806 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 112600 TIELING, LIAONING PROVINCE TO: 112000 TIELING, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140806 Address after: 112000 Tieling City, Liaoning province Tieling Economic Development Zone Branch of Liaoning Maoshan pitotbar Technology Co. Ltd. Patentee after: Liaoning Bitobar Technologies Co.,Ltd. Address before: 112600 Tieling City, Liaoning province Tieling Economic Development Zone Branch of Liaoning Maoshan pitotbar Technology Co. Ltd. Patentee before: Wang Zhonghui |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 112600 Tieling City, Liaoning province Tieling Economic Development Zone Branch of Liaoning Maoshan pitotbar Technology Co. Ltd. Patentee after: Liaoning pitotbar Polytron Technologies Inc. Address before: 112000 Tieling City, Liaoning province Tieling Economic Development Zone Branch of Liaoning Maoshan pitotbar Technology Co. Ltd. Patentee before: Liaoning Bitobar Technologies Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |