CN204007730U - A kind of Pi Tuoba flowmeter - Google Patents
A kind of Pi Tuoba flowmeter Download PDFInfo
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- CN204007730U CN204007730U CN201420383074.3U CN201420383074U CN204007730U CN 204007730 U CN204007730 U CN 204007730U CN 201420383074 U CN201420383074 U CN 201420383074U CN 204007730 U CN204007730 U CN 204007730U
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Abstract
The utility model relates to fluid flux measurement technology field, and particularly a kind of Pi Tuoba flowmeter, comprises layer structure, total head pressure pipe, static pressure pressure pipe structure and Pi Tuoba differential pressure output module.Layer structure is cylindrical shape.Total head pressure pipe axis is parallel with layer structure axis, and in layer structure, to coming, flow path direction is eccentric to be placed.Total head pressure pipe Length Ratio layer structure is long, and elongated portion top is outwardly-bent, and notch shape becomes total head pressure port.Static pressure pressure pipe structure is cylindrical, and there are two passages inside: a passage, for circular, is the sleeve pipe of total head pressure pipe; Another passage is kidney type or D font, forms static pressure pressure pipe.The utility model has been simplified work flow, has reduced resistance, can form voltage stabilizing district, makes measurement result more accurate, greatly reduces and the probability stopping up occurs and be easy to purge cleaning.
Description
Technical field
The utility model relates to the field of measuring technique of fluid flow, and particularly a kind of Pi Tuoba flowmeter that can be used for the dirty gas flow measurement of large pipeline is difficult to accurately measure a reliable technical scheme is provided for solving the dirty gas of metallurgy industry large pipeline.
Background technology
Pi Tuoba flowmeter is to manufacture and design according to the velocity-area method > > international standard of measurement-employing pitot static tube of fluid flow in ISO3966 < < closed conduct.Tradition differential pressure flowmeter is the class flow instrument being most widely used in current commercial production, because it is simple in structure, and technology maturation, applied widely.But the shortcomings such as traditional differential pressure flowmeter exists, and measurement range is narrow, the pressure loss is large, repeatability is bad, degree of accuracy is not high also have problems aspect its difficulty of construction of the installation on bigbore pipeline and cost.Along with development in science and technology, the parameters such as the flow velocity of detected fluid, pressure, temperature constantly change, and measurement environment is more and more severe, and medium self component becomes increasingly complex, and traditional differential pressure flowmeter has been difficult to meet the demand of modern flow measurement.Using common gas in metallurgical industry---blast furnace gas is as research object, the Measurement accuracy of blast furnace gas flow in lifting process flow process, reduce production costs, improve aspect Business Economic Benefit and play conclusive effect.But blast furnace gas medium composition is complicated, has particle in coal gas, be corrosive and there is certain humidity, conveyance conduit is generally large diameter pipeline, brings very big inconvenience to the installation and maintenance of measuring element.
Summary of the invention
The purpose of this utility model is for the defect of prior art and deficiency, provide a kind of novel flowmeter to solve the problems referred to above, it is simple in structure, reasonable in design, it is convenient to install, and for solving the dirty gas of metallurgy industry large pipeline, is difficult to accurately measure a reliable flow-meter is provided.
For achieving the above object, the technical solution adopted in the utility model is: Pi Tuoba flowmeter described in the utility model comprises layer structure, total head pressure pipe, static pressure pressure pipe structure and Pi Tuoba differential pressure output module.Described layer structure is cylinder type, and in layer structure, to coming, flow path direction is eccentric to be placed total head pressure pipe, and total head pressure pipe axis is parallel with layer structure axis.Described layer structure top is connected to Pi Tuoba differential pressure output module, and bottom is connected with static pressure pressure pipe structure.Described layer structure is fixed on tested pipeline by Pi Tuoba stationary installation.Described total head pressure pipe Length Ratio layer structure is long, and the part of elongation forms total head and measures structure.On the top of described total head pressure pipe elongated portion, the axis of total head pressure pipe is outwardly-bent, forms the similar horseshoe-shaped elbow structure of a profile.Total head pressure pipe top end opening place forms a total head pressure port.Total head pressure port is over against carrying out flow path direction, and on the axis of its central point in tested pipeline, end face is vertical with the axis of tested pipeline.Described static pressure pressure pipe structure is cylindrical, and inside has two passages, and a passage is circular, and its internal diameter equates with total head pressure pipe external diameter, is the sleeve pipe of total head pressure pipe; Another passage is kidney type or D font, forms static pressure pressure pipe.Static pressure pressure pipe one side on static pressure pressure pipe structure top forms the inclined-plane of 45 °, and static pressure tapping is in this inclined-plane.Static pressure pressure pipe axis is parallel with total head pressure pipe axis.Total head pressure pipe is through sleeve pipe, and layer structure is connected with static pressure pressure pipe structure.
Adopt after said structure, the utility model beneficial effect is: Pi Tuoba flowmeter described in the utility model, solve that dirty gas flow in large diameter pipeline is difficult to accurately to measure and flowmeter is easy to the problem of obstruction, sensor by new shape has guaranteed measuring accuracy, reduce and stop up occurrence probability, be easy to clean.
Specifically:
1, the layer structure of Pi Tuoba flowmeter of the present utility model adopts a whole block material to process, and than the flowmeter of other couple structures, Pi Tuoba flowmeter has higher intensity.To compare the resistance producing in flow field less with traditional differential pressure flowmeter, reduces the pressure loss.
While 2, measuring, the total head pressure port of Pi Tuoba flowmeter is over against carrying out flow path direction, and in total head pressure pipe, medium forms stationary point, measures more exactly total head; During fluid process static pressure pressure pipe structure, can near static pressure tapping, form voltage stabilizing district, near static pressure tapping, pressure keeps constant, measures more accurately static pressure.
3, measure dirty or while having the flow of impurity medium, the blockage problem that how to solve flowmeter is crucial.In total head pressure port and static pressure tapping, medium all forms stationary point, can effectively reduce entering of impurity.Due to the existence of horseshoe-shaped structure, when flow that measurement contains composition medium that can condensation, the condensation product of generation can flow along horseshoe incision, so impurity is difficult for piling up in pressure port, reduces and stops up possibility.
4, pressure port aperture is relatively large, and the possibility that occurs to stop up is reduced greatly.
5. save installation and operation expense, in installation process, only need to carry out simple perforate, welding job, on transmission pipeline, open the mounting hole that cut-off footpath is 40mm.
Accompanying drawing explanation
Fig. 1 is Pi Tuoba flowmeter sectional view.
Fig. 2 is A-A cross-sectional view in Fig. 1.
Description of reference numerals: 1: layer structure; 2, total head pressure pipe; 3, total head is measured structure; 4, static pressure pressure pipe; 5, static pressure pressure pipe structure; 6, total head pressure port; 7, static pressure tapping; 8, Pi Tuoba stationary installation; 9, Pi Tuoba differential pressure output module; 10, tested pipeline.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, Pi Tuoba flowmeter, it comprises layer structure 1, total head pressure pipe 2, static pressure pressure pipe structure 5 and Pi Tuoba differential pressure output module 9.Layer structure 1 is cylindrical shape, and its inside is flow path direction eccentric setting one total head pressure pipe 2 always, and the axis of total head pressure pipe 2 is parallel with the axis of layer structure 1.Layer structure 1 top is connected with Pi Tuoba differential pressure output module 9, and bottom is connected with static pressure pressure pipe structure 5.Layer structure 1 is fixed on tested pipeline 10 by Pi Tuoba stationary installation 8.The Length Ratio layer structure 1 of total head pressure pipe 2 is long, and the axis on total head pressure pipe 2 elongated portion tops is outwardly-bent, forms the similar horseshoe-shaped elbow structure of a profile, and the part that total head measurement structure 3 is extended by total head pressure pipe 2 forms.Total head pressure pipe 2 top notch shape become total head pressure port 6.The central spot of total head pressure port 6 is on the axis of tested pipeline 10, and end face is vertical with the axis of tested pipeline 10.Static pressure pressure pipe structure 5 is cylindrical, and inside has two passages: a passage is for circular, and its internal diameter equates with total head pressure pipe 2 external diameters, is the sleeve pipe of total head pressure pipe 2; Another passage is kidney type or D font, forms static pressure pressure pipe 4.Static pressure pressure pipe 4 one sides on static pressure pressure pipe structure 5 tops form the inclined-plane of 45 °, and static pressure tapping 7 is in this inclined-plane.Total head pressure pipe 2 is through sleeve pipe, and layer structure 1 is connected with static pressure pressure pipe structure 5.The axis of static pressure pressure pipe 4 is parallel with the axis of total head pressure pipe 2.
Pi Tuoba flowmeter only has a total head pressure port 6, the top in total head pressure pipe 2, and total head pressure port 6 is over against carrying out flow path direction.From dead ahead, see that total head pressure port 6 is shaped as ellipse, total head pressure port 6 central spot are on the axis of tested pipeline 10, and end face is vertical with the axis of tested pipeline 10.
Pi Tuoba flowmeter only has a static pressure tapping 7, and it is shaped as kidney type or D font, this shape can be when guaranteeing structural strength hole diameter enlargement.
Static pressure pressure pipe structure 5 profiles can be truncated cone-shaped, from layer segment junction start its radius and diminish gradually.
The above is only better embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (3)
1. Yi Zhong Pi Tuoba flowmeter, comprises layer structure (1), total head pressure pipe (2), static pressure pressure pipe structure (5) and Pi Tuoba differential pressure output module (9); It is characterized in that: described layer structure (1) is cylinder type, total head pressure pipe (2) carrys out the eccentric placement of flow path direction in layer structure (1) introversion, and total head pressure pipe (2) axis is parallel with layer structure (1) axis; Layer structure (1) top is connected with Pi Tuoba differential pressure output module (9), and bottom is connected with static pressure pressure pipe structure (5); Layer structure (1) is fixed on tested pipeline (10) by Pi Tuoba stationary installation (8).
2. flowmeter according to claim 1, it is characterized in that: total head pressure pipe (2) Length Ratio layer structure (1) is long, the top of total head pressure pipe (2) elongated portion is outwardly-bent, form profile and be approximately horseshoe-shaped total head measurement structure (3), total head pressure pipe (2) top notch shape becomes total head pressure port (6), the central spot of total head pressure port (6) is on the axis with tested pipeline (10), and end face is vertical with the axis of tested pipeline (10).
3. flowmeter according to claim 1 and 2, is characterized in that: static pressure pressure pipe structure (5) is for cylindrical, and inside has two passages, and a passage is circular, and its internal diameter equates with total head pressure pipe (2) external diameter, is the sleeve pipe of total head pressure pipe (2); Another passage is kidney type or D font, forms static pressure pressure pipe (4); Static pressure pressure pipe (4) one sides on static pressure pressure pipe structure (5) top form the inclined-plane of 45 °, and static pressure tapping (7) is in this inclined-plane; Total head pressure pipe (2) is through sleeve pipe, and layer structure (1) is connected with static pressure pressure pipe structure (5), and the axis of static pressure pressure pipe (4) is parallel with the axis of total head pressure pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383074.3U CN204007730U (en) | 2014-07-11 | 2014-07-11 | A kind of Pi Tuoba flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383074.3U CN204007730U (en) | 2014-07-11 | 2014-07-11 | A kind of Pi Tuoba flowmeter |
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| Publication Number | Publication Date |
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| CN204007730U true CN204007730U (en) | 2014-12-10 |
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| CN201420383074.3U Active CN204007730U (en) | 2014-07-11 | 2014-07-11 | A kind of Pi Tuoba flowmeter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716670A (en) * | 2016-04-21 | 2016-06-29 | 承德菲时博特自动化设备有限公司 | Multichannel rectangular needle tube flow measurement device |
| CN108709595A (en) * | 2018-08-07 | 2018-10-26 | 江阴市神州测控设备有限公司 | A kind of general-purpose type is intelligently fertile can bar flowmeter |
| CN109723976A (en) * | 2019-02-26 | 2019-05-07 | 中国神华能源股份有限公司 | Line clogging position detecting device |
| CN112525273A (en) * | 2020-10-23 | 2021-03-19 | 江苏淮海自控设备有限公司 | Novel large-caliber high-precision flow sensor |
-
2014
- 2014-07-11 CN CN201420383074.3U patent/CN204007730U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716670A (en) * | 2016-04-21 | 2016-06-29 | 承德菲时博特自动化设备有限公司 | Multichannel rectangular needle tube flow measurement device |
| CN108709595A (en) * | 2018-08-07 | 2018-10-26 | 江阴市神州测控设备有限公司 | A kind of general-purpose type is intelligently fertile can bar flowmeter |
| CN109723976A (en) * | 2019-02-26 | 2019-05-07 | 中国神华能源股份有限公司 | Line clogging position detecting device |
| CN109723976B (en) * | 2019-02-26 | 2021-10-08 | 中国神华能源股份有限公司 | Pipeline blockage position detection device |
| CN112525273A (en) * | 2020-10-23 | 2021-03-19 | 江苏淮海自控设备有限公司 | Novel large-caliber high-precision flow sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180820 Address after: 102209 2307B 2, torch street 10, Changping District science and Technology Park, Beijing (Changping demonstration area) Patentee after: PITOBAR (BEIJING) INSTRUMENT Co.,Ltd. Address before: 102200 10 torch street, Changping District, Beijing Patentee before: Jiang Huagen |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102209 2307B 2, torch street 10, Changping District science and Technology Park, Beijing (Changping demonstration area) Patentee after: Beijing Pitor Technology Co.,Ltd. Address before: 102209 2307B 2, torch street 10, Changping District science and Technology Park, Beijing (Changping demonstration area) Patentee before: PITOBAR (BEIJING) INSTRUMENT Co.,Ltd. |