CN2800235Y - Anti-blockage probe type flow transducer - Google Patents
Anti-blockage probe type flow transducer Download PDFInfo
- Publication number
- CN2800235Y CN2800235Y CN 200520091004 CN200520091004U CN2800235Y CN 2800235 Y CN2800235 Y CN 2800235Y CN 200520091004 CN200520091004 CN 200520091004 CN 200520091004 U CN200520091004 U CN 200520091004U CN 2800235 Y CN2800235 Y CN 2800235Y
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- China
- Prior art keywords
- pressure
- flow sensor
- bending
- circular tubes
- openings
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- Expired - Fee Related
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Abstract
The utility model relates to an anti-blockage probe type flow transducer which is provided with two combined parallel tube bodies of circular tubes with the same diameter and has the structure that rectangular bends are respectively arranged at the lower end of each of the circular tubes, the bends of the two circular tubes are in opposite direction, bend openings are respectively arranged on the bends, the surface of each of the bend openings is on a generatrix of a cylindrical surface of an outer tube wall, the axial lines of the bend openings are on the same straight line, the axial lines of the bend openings are on the surface which the axial lines of the two parallel circular tubes are arranged and the upper end of each of the circular tubes is respectively a pressure outlet. The utility model is characterized in that the tube bodies are straight, and the manufacture and the installation are comparatively easy; pressure measuring openings are the bend openings at the lower end of each of the circular tubes, the pressure measuring openings are arranged at the lowest end of each of the circular tubes and are comparatively big, when used in fluid with dust, after coming in from pressure measuring holes, the dust can freely fall due to gravity and can be blown out by reversely blowing, the dust flows out from the bend openings at the lower end of each of the circular tubes, and thus the utility model has anti-blockage performance and can be used in fluid with dust.
Description
Technical field
The utility model relates to a kind of probe-type flow sensor, and particularly a kind of pipe body of probe-type flow sensor and differential pressure measurement are pressed mouth.
Background technology
Pitot tube is a kind of flow sensor, can measure the stagnation pressure and the static pressure of fluid with Pitot tube, after measuring the stagnation pressure and static pressure of fluid, in conjunction with caliber, physical properties of fluids and parameters such as time, temperature, use differential pressure transmitter, flow integrator can be measured parameters such as flow rate of fluid, instantaneous delivery and integrated flow.Pitot tube and orifice-plate type flow sensor compare, and measure flow and characteristics such as fluid flow has the precision height, range ability is big, reliability is high, the pressure loss is little and apparatus structure is simple with Pitot tube.Pitot tube has the pipe body, there is tubular differential pressure measurement head the lower end of pipe body, the equal diameters of the diameter of pipe body and differential pressure measurement head pipe, the differential pressure measurement head have in use towards fluid come to pitot hole and in use towards the baroport of fluid side, pitot hole is in the outer end of differential pressure measurement head pipe, baroport is at the sidewall of differential pressure measurement head pipe, stagnation pressure conduit and static pressure conduit are arranged in the pipe body, there are stagnation pressure outlet and static pressure outlet in the upper end of pipe body, the lower end of stagnation pressure conduit and static pressure conduit links to each other with baroport with pitot hole respectively, and outlet links to each other with static pressure with the stagnation pressure outlet respectively in the upper end of stagnation pressure conduit and static pressure conduit.In the prior art, Pitot tube is a bend pipe, and the axis normal of the differential pressure measurement head pipe of bent-tube boiler Pitot tube is in the axis of pipe body.This Pitot tube flow sensor has following deficiency:
(1). the axis of tubular differential pressure measurement head should be strictly perpendicular to the axis of pipe body, because the requirement height of the accuracy of form and position of product has certain degree of difficulty during fabrication;
(2). during use, on the duct wall of detected fluid, punch, the bent-tube boiler Pitot tube is inserted in the pipeline, the bent-tube boiler Pitot tube is fixed on the tube wall, allow the axis of tubular differential pressure measurement head exactly on the axis of fluid line, because Pitot tube is bent, the axis normal of tubular differential pressure measurement head is in the axis of pipe body, accurate for guaranteeing the installation site, certain degree of difficulty is also arranged when mounted;
(3). Pitot tube is a bend pipe, the pitot hole and the baroport of Pitot tube lower end are less, pitot hole and baroport all are towards the side, if contain dust in the fluid, in use dust can enter in the pipe from pitot hole and baroport, because pitot hole and baroport are less, pitot hole and baroport are not at the pipe end, in a single day dust enters in the pipe and just can not flow out, and dust is accumulated in the pipe, can cause Pitot tube blocked and influence use when serious.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes the manufacturing that a kind of fluid that can be used for containing dust uses and install all to be relatively easy to a kind of block-resistant type probe-type flow sensor.
The utility model is realized with the following method.
Block-resistant type probe-type flow sensor has that diameter is identical, the body of two pipes parallel to each other of combining, the rectangular bending respectively of the lower end of every pipe, the direction of the bending of two pipes is opposite, the bending mouth is arranged respectively in the bending, bending mouth plane is on the bus on the outer tube wall face of cylinder, the axis of bending mouth is on same straight line, and the axis of bending mouth is that the upper end of every pipe is respectively a pressure export on the plane, axis place of two pipes parallel to each other.
During use, the pipeline of detected fluid should be a level, punches on the duct wall of detected fluid, vertically be inserted in the pipeline the utility model, and be fixed on the tube wall, allow the axis of two bending mouths on the axis of fluid line, one of them bending oral pore towards fluid come to, it is pitot hole, another bending oral pore is a baroport towards the fluid whereabouts, and the utility model is the same with Pitot tube, can measure the stagnation pressure and the static pressure of fluid, be used to do flow sensor.Though the utility model has the bending mouth in the rectangular bending in the lower end of pipe in the bending, because bending mouth plane is on the bus of outer tube wall, body is the two parallel straight pipes that combine.The method of opening of bending mouth is that one section right-angle bend is bent in the pipe lower end, cuts down right-angle bend is vertical through the bus on the tube wall on the plane, axis place of the axis of right-angle bend and pipe, leaves the bending mouth in the lower end of pipe.
The utility model is the body of straight tube, makes and installs all than being easier to; Pressure tap of the present utility model is the bending mouth in the lower end of pipe, pressure tap at pipe bottom, pressure tap is bigger, when in containing the fluid of dust, using, dust can get off because of gravity free setting after entering in the pipe from pressure tap, from the bending mouth outflow of pipe lower end, fall stifled performance so the utlity model has, can in containing the fluid of dust, use.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is that the master of block-resistant type probe-type flow sensor looks cross-sectional schematic;
Fig. 2 is the side-looking cross-sectional schematic of Fig. 1;
Fig. 3 is the A-A diagrammatic cross-section of Fig. 1;
Fig. 4 is the synoptic diagram that is connected with the block-resistant type probe-type flow sensor of flow integrator;
Fig. 5 is connected with the synoptic diagram of the water vapour of flow integrator with block-resistant type probe-type flow sensor.
Embodiment
Among Fig. 1, Fig. 2, Fig. 3, block-resistant type probe-type flow sensor, it is characterized in that: have that diameter is identical, the body of two pipes 1,2 parallel to each other of combining, the rectangular bending 3,4 respectively of the lower end of every pipe, the direction of the bending of two pipes is opposite, bending mouth 5,6 is arranged respectively in the bending, bending mouth plane is on the bus on the outer tube wall face of cylinder, the axis of bending mouth is on same straight line, the axis of bending mouth is on the plane, axis place of two pipes parallel to each other, and the upper end of every pipe is respectively a pressure export 7,8.
Differential pressure transmitter in the prior art is at the pressure reduction between exportable stagnation pressure and the static pressure behind input stagnation pressure of fluid and the static pressure, flow integrator at the pressure reduction between input stagnation pressure and the static pressure, caliber, fluid flow state and time that fluid is flowed through or/and parameters such as exportable flow rate of fluid, instantaneous delivery and integrated flow after the temperature, pressure and other parameters.
Above-mentioned block-resistant type probe-type flow sensor can be connected with differential pressure transmitter and flow integrator becomes block-resistant type probe-type flowmeter.Block-resistant type probe-type flowmeter can be used for measuring the flow of fluid, the flow of the gas of the dust that contains especially for measurement.
Among Fig. 4, the stagnation pressure outlet 11 and the static pressure outlet 12 of block-resistant type probe-type flow sensor 10 are connected with stop valve 13,14 respectively one time, one time stop valve is connected with equalizing valve 15, and equalizing valve is connected with differential pressure transmitter 16 and flow integrator 17 successively, forms block-resistant type probe-type flowmeter.
Above-mentioned probe-type flowmeter is when measuring the flow of water vapor, because the temperature of water vapor than stagnation pressure outlet and static pressure outlet height, water vapor be easy to be condensed, the density of water vapor and temperature, pressure in close relations, and the density of water vapor is the parameter that greatly influences the water vapor flow, so be used to measure the block-resistant type probe-type flowmeter of water vapor devices such as condenser, the thermometer of measuring fluid, pressure unit will be arranged also.
Among Fig. 5, the stagnation pressure outlet 21 and the static pressure outlet 22 of block-resistant type probe-type flow sensor 20 are connected with condenser 25,26 by a stop valve 23,24 respectively, condenser is connected with equalizing valve 27, differential pressure transmitter 28 and flow integrator 29 successively, flow integrator also is connected with thermometer 30 and pressure unit 31, the other end of pressure unit links to each other with the outlet of the condenser 26 that links to each other with the outlet of the static pressure of probe-type flow sensor, forms and measures water vapor block-resistant type probe-type flowmeter.
In order to remove the dust that is accumulated in the pipe, on the pipeline between two pressure exports of stop valve and block-resistant type probe-type flow sensor, there is blowback to prop up spool, remove with blowback wind and be accumulated in the interior dust of pipe.
Among Fig. 4, Fig. 5, on the pipeline between two pressure exports of stop valve and block-resistant type probe-type flow sensor, there is blowback to prop up spool 18,19,30,31.
The flow integrator of above-mentioned block-resistant type probe-type flowmeter can show flow value, also exportable flow signal, and flow signal available computers or other display device show.
Claims (4)
1. block-resistant type probe-type flow sensor, it is characterized in that: have that diameter is identical, the body of two pipes parallel to each other of combining, the rectangular bending respectively of the lower end of every pipe, the direction of the bending of two pipes is opposite, the bending mouth is arranged respectively in the bending, bending mouth plane is on the bus on the outer tube wall face of cylinder, the axis of bending mouth is on same straight line, the axis of bending mouth is that the upper end of every pipe is respectively a pressure export on the plane, axis place of two pipes parallel to each other.
2. by the described block-resistant type probe-type of claim 1 flow sensor, it is characterized in that: two pressure exports of described block-resistant type probe-type flow sensor are connected with stop valve respectively one time, one time stop valve is connected with equalizing valve, and equalizing valve is connected with differential pressure transmitter and flow integrator successively.
3. by the described block-resistant type probe-type of claim 1 flow sensor, it is characterized in that: two pressure exports of described block-resistant type probe-type flow sensor are connected with condenser by a stop valve respectively, condenser is connected with equalizing valve, differential pressure transmitter and flow integrator successively, flow integrator also is connected with thermometer and pressure unit, and the other end of pressure unit is continuous with the outlet of the condenser that links to each other with the outlet of the static pressure of block-resistant type probe-type flow sensor.
4. by claim 2 or 3 described block-resistant type probe-type flow sensors, it is characterized in that: have blowback to prop up spool on the pipeline between two pressure exports of a described stop valve and block-resistant type probe-type flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091004 CN2800235Y (en) | 2005-05-27 | 2005-05-27 | Anti-blockage probe type flow transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091004 CN2800235Y (en) | 2005-05-27 | 2005-05-27 | Anti-blockage probe type flow transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800235Y true CN2800235Y (en) | 2006-07-26 |
Family
ID=36842732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520091004 Expired - Fee Related CN2800235Y (en) | 2005-05-27 | 2005-05-27 | Anti-blockage probe type flow transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800235Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806423A (en) * | 2016-03-09 | 2016-07-27 | 宁波钢铁有限公司 | Large-diameter low-pressure fouling gas flow measurement throttling device |
| CN112302597A (en) * | 2020-11-04 | 2021-02-02 | 海南毕托巴科技研究院有限公司 | Wet steam metering device |
-
2005
- 2005-05-27 CN CN 200520091004 patent/CN2800235Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806423A (en) * | 2016-03-09 | 2016-07-27 | 宁波钢铁有限公司 | Large-diameter low-pressure fouling gas flow measurement throttling device |
| CN112302597A (en) * | 2020-11-04 | 2021-02-02 | 海南毕托巴科技研究院有限公司 | Wet steam metering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |