CN201096500Y - Insertion type bullet head type flow meter - Google Patents
Insertion type bullet head type flow meter Download PDFInfo
- Publication number
- CN201096500Y CN201096500Y CNU2007201262933U CN200720126293U CN201096500Y CN 201096500 Y CN201096500 Y CN 201096500Y CN U2007201262933 U CNU2007201262933 U CN U2007201262933U CN 200720126293 U CN200720126293 U CN 200720126293U CN 201096500 Y CN201096500 Y CN 201096500Y
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- pressure
- flow measurement
- low pressure
- bullet
- steel pipe
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Abstract
The utility model relates to a plug-in type warhead shape flow measurement device, which can stabilize the flow field of measuring points, extend the range of use of the plug-in type flow measurement device, improve the accuracy in measurement and increase the amplitude of output signals. In order to realize the above purposes, the utility model comprises a plurality of parallel flow measurement units, the flow measurement units are connected with a mounting flange by a connecting steel tube, high and low pressure obtaining pressure cavities of the flow measurement units are connected in series and output from a pressure guiding pipe, the flow measurement units are fixed with the measured pipelines through the mounting flange, the appearances of the flow measurement units are warhead-shaped revolving bodies or similar revolving bodies, the high and low pressure obtaining pressure cavities of the flow measurement units include high pressure obtaining pressure holes arranged at front ends of the revolving bodies and two low pressure obtaining pressure holes disposed at both sides of the revolving bodies, the high pressure obtaining pressure holes are communicated with a high pressure connecting steel tube 6 disposed in a high pressure connecting steel tube hole at one side of the high pressure obtaining pressure holes, and the low pressure obtaining pressure holes are communicated with a low pressure connecting steel tube 7 arranged in a low pressure connecting steel tube hole between the two low pressure obtaining pressure holes.
Description
One, technical field:
The utility model relates to a kind of flow measurement device, especially relates to the bullet-shaped flow measurement device of a kind of plug-in type.
Two, background technology:
At present, crust such as traditional Annubar (even speed tube) class flowmeter, it measures the restriction that the cross section is subject to processing technology, has following problem when actual measurement:
1. the differential pressure output signal is less;
2. flow direction must guarantee parallel with the tested pipeline center when measuring;
3. be difficult to adapt to the measurement requirement of large scale, little straight length pipeline.
Three, utility model content:
The utility model is in order to solve the weak point in the above-mentioned background technology, provide a kind of plug-in type bullet-shaped flow measurement device, it can be stablized the measuring point flow field, enlarge the usable range of insert type flow measuring device, improves the amplitude of measuring accuracy, increase output signal.
For achieving the above object, the technical solution adopted in the utility model is:
The bullet-shaped flow measurement device of a kind of plug-in type, it is characterized in that: comprise a plurality of flow measurement unit parallel to each other, the flow measurement unit connects steel pipe (6) by high pressure and is connected steel pipe (7) with low pressure and is connected with mounting flange, the back is connected mutually by pressure guiding pipe output in the high and low pressure pressure chamber of flow measurement unit, and fixes by mounting flange and tested pipeline.
Above-mentioned flow measurement unit is two or more flow measurements unit.
The profile of above-mentioned flow measurement unit is the solid of revolution of bullet shape solid of revolution or analogous shape.
The high and low pressure pressure chamber of flow measurement unit comprises the high pressure pressure port that is arranged on the solid of revolution front end and is arranged on two low pressure pressure ports of solid of revolution both sides, the high pressure pressure port is connected steel pipe 6 with the high pressure of high pressure pressure port one side and communicates, and the low pressure pressure port is connected steel pipe 7 with low pressure between two low pressure pressure ports and communicates.
Compared with prior art, the advantage and the effect that the utlity model has are as follows:
1, the utility model combines crust class measurement advantages flowmeter and plug-in type multiple spot average rate double throat diameter flow apparatus such as existing Annubar, can further enlarge its accommodation;
2, the utility model can be provided with measuring point in the optional position in pipeline, and because its volume is small and exquisite, more measuring point can be set, and improves the accuracy of flow velocity (flow) metering; When straight length is not enough, use this device can carry out accurate flow velocity or flow metering;
3, the utlity model has good composite behaviour, be fit to producing in serial form, reduced cost, be adapted to the pipeline of various sizes, reduced the installation length of device itself.
Four, description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the structural representation of flow measurement unit in the utility model.
Among the figure, 1-welding flange, 2-mounting flange, the 3-pressure guiding pipe, the 4-packing washer, the bullet-shaped flow measurement of 5-unit, the 6-high pressure connects steel pipe, 7-low pressure connects steel pipe, 8-high pressure pressure port, 9-bullet shape solid of revolution, the 10-high pressure connects the steel pipe hole, 11-low pressure connects steel pipe hole, 12-low pressure pressure port.
Five, embodiment:
The utility model is mainly used in the flow metering and the test of various sizes pipeline, be based on bullet-shaped flow measurement unit, measuring unit more than two or more is set in pipeline, make interior each the measuring point place of pipeline that a bullet-shaped measuring unit all be arranged, thereby constitute a bullet-shaped flow measurement device.Also can be according to the line size size, one or more sets bullet-shaped flow measurement devices are installed in pipeline, then high and low pressure pressure pipe separately is serially connected respectively, the flow velocity signal of the inner a plurality of diverse location measuring points of measuring channel can be gathered together like this, from an impulse pipeline, draw, reach the average effect of multi-point signal.Use two these devices of cover can satisfy the accurate measurement of the flow of general big-and-middle-sized pipeline; Use many these devices of cover to can be used for the flow measurement occasion that large pipeline does not have straight length.
Referring to Fig. 1 and Fig. 2, the utility model is by the two or more bullet-shaped flow measurement unit 5 that is parallel to each other, high pressure connects steel pipe 6, low pressure connects steel pipe 7 and formations such as mounting flange 2 and pressure guiding pipe 3, welds together with tested pipeline by packing washer 4 and the welding flange 1 that is connected with mounting flange 2.Bullet-shaped measuring unit 5 is by line size and requirement, connect steel pipe 6 by high pressure and is connected steel pipe 7 with low pressure and is fixed on flow apparatus and connects on the optional position of steel pipe, connect steel pipe and mainly play the conveying differential pressure signal and be connected the purpose that supports each bullet-shaped flow measurement unit.Two or more bullet-shaped flow measurement unit parallel to each other 5 connect steel pipe 6 by connecting high pressure, low pressure connects steel pipe 7 and is connected with mounting flange 2, the high pressure pressure port 8 of each bullet-shaped flow measurement unit 5, low pressure pressure port 12 are connected steel pipe 6 respectively with high pressure, low pressure connects steel pipe 7 and is communicated with, fix at last by pressure guiding pipe 3 outputs, and by mounting flange 2 and tested pipeline.
Referring to Fig. 3, Figure 3 shows that the inner structure shape of bullet-shaped flow measurement unit 5, each bullet-shaped flow measurement unit 5 is made up of bullet shape solid of revolution 9, high pressure pressure port 8, two low pressure pressure ports 12 etc.The high and low pressure pressure chamber of flow measurement unit comprises high pressure pressure port 8 that is arranged on bullet shape solid of revolution 9 front ends and two low pressure pressure ports 12 that are arranged on solid of revolution 9 both sides, high pressure pressure port 8 is connected the high pressure that are provided with in the steel pipe hole 10 and connects steel pipes 6 and communicate with the high pressure of high pressure pressure port 8 one sides, low pressure pressure port 12 is connected settings in the steel pipe hole 11 with low pressure between two low pressure pressure ports 12 low pressure connection steel pipes 7 communicate.
During real work, in tested pipeline, because the straight length deficiency is installed, can cause flow distortion, at this moment medium flows through simultaneously by being positioned at the bullet-shaped flow measurement of diverse location, because the difference of each point flow velocity, can produce a plurality of differential pressure signals, these signals link to each other owing to all be connected steel pipe with high-low pressure, and are gathered together, thereby reach the purpose of multi-point average, at last by pressure guiding pipe 3 outputs.This differential pressure signal is the mean value of multiple spot fluid-velocity survey.Can accurately calculate flow value according to velocity-area method.
Claims (4)
1, the bullet-shaped flow measurement device of a kind of plug-in type, it is characterized in that: comprise a plurality of flow measurement unit (5) parallel to each other, flow measurement unit (5) is connected steel pipe (7) by high pressure connection steel pipe (6) and is connected with mounting flange (2) with low pressure, the back is connected mutually by pressure guiding pipe (3) output in the high and low pressure pressure chamber of flow measurement unit (5), and flow measurement unit (5) are also fixed by mounting flange (1) and tested pipeline.
2, the bullet-shaped flow measurement device of plug-in type according to claim 1 is characterized in that: flow measurement unit (5) are two or more flow measurements unit.
3. the bullet-shaped flow measurement device of plug-in type according to claim 2 is characterized in that: the profile of flow measurement unit (5) is the solid of revolution of bullet shape solid of revolution (9) or analogous shape.
4, the bullet-shaped flow measurement device of plug-in type according to claim 3, it is characterized in that: the height of flow measurement unit (5), low pressure pressure chamber comprises the high pressure pressure port (8) that is arranged on bullet shape solid of revolution (9) front end and is arranged on two low pressure pressure ports (12) of bullet shape solid of revolution (9) both sides, high pressure pressure port (8) is connected the high pressure that is provided with in the steel pipe hole (10) and connects steel pipe (6) and communicate with the high pressure of high pressure pressure port (8) one sides, low pressure pressure port (12) is connected setting in the steel pipe hole (11) with low pressure between two low pressure pressure ports (12) low pressure connection steel pipe (7) communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201262933U CN201096500Y (en) | 2007-11-05 | 2007-11-05 | Insertion type bullet head type flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201262933U CN201096500Y (en) | 2007-11-05 | 2007-11-05 | Insertion type bullet head type flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096500Y true CN201096500Y (en) | 2008-08-06 |
Family
ID=39923553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201262933U Expired - Fee Related CN201096500Y (en) | 2007-11-05 | 2007-11-05 | Insertion type bullet head type flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201096500Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398571A (en) * | 2018-02-11 | 2018-08-14 | 河海大学 | A kind of open channel uniform flow vertical direction multiple spot tachymeter device |
| CN109141546A (en) * | 2018-08-30 | 2019-01-04 | 周冰 | Tandem aerofoil profile differential pressure block cross-sectional flow meter, differential pressure measuring installation and measurement method |
-
2007
- 2007-11-05 CN CNU2007201262933U patent/CN201096500Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398571A (en) * | 2018-02-11 | 2018-08-14 | 河海大学 | A kind of open channel uniform flow vertical direction multiple spot tachymeter device |
| CN109141546A (en) * | 2018-08-30 | 2019-01-04 | 周冰 | Tandem aerofoil profile differential pressure block cross-sectional flow meter, differential pressure measuring installation and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20121105 |