CN1078305A - Twin fulcrum target type flow sensor - Google Patents
Twin fulcrum target type flow sensor Download PDFInfo
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- CN1078305A CN1078305A CN 92115086 CN92115086A CN1078305A CN 1078305 A CN1078305 A CN 1078305A CN 92115086 CN92115086 CN 92115086 CN 92115086 A CN92115086 A CN 92115086A CN 1078305 A CN1078305 A CN 1078305A
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- flow sensor
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- axostylus axostyle
- type flow
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Abstract
The present invention is a kind of twin fulcrum target type flow sensor.The existing various flowmeters of China can't satisfy the needs of caliber in the online detection of discharge more than 1 meter, the structure that the present invention adopts rectangular target plate and two point to support, and new-type seal approach and adjustment mode have been adopted, thereby the precision and the stability of product have been improved, has simple installation, advantages such as the pressure loss is little can be suitable for comprising more than 0.5 meter the online detection of big caliber process water more than 1.5 meters, and measuring error is not more than 1%.
Description
The present invention relates to a kind of apparatus for metering fluids, i.e. a kind of twin fulcrum target type flow sensor that is applicable to big caliber industrial process waters flow on-line determination of forming by stressed member, bracing or strutting arrangement, packoff and adjusting gear etc.
At present, the various flowmeters that China produces can't satisfy the requirement of the online detection of big caliber discharge.The standard restriction device only is used for the caliber below 1 meter.Turbo flow meter is had relatively high expectations to the cleanliness of water, uses in the occasion that sediment concentration is higher, and the life-span is very short.Electromagnetic flowmeter only is used to the liquid that conducts electricity, and when caliber surpassed 1.5 meters, the volume of transmitter was big, and the selection of installation site is limited.Ultrasonic flow meter is to measure the reasonable instrument of large-caliber flow, but measuring circuit is more complicated and cost an arm and a leg than general flowmeter.Existing target type meter is the disk target, the single swing arm type structure, and its bracing or strutting arrangement and packoff all can not bear bigger impulsive force, thereby the caliber of measured medium must not be above 0.2 meter.
The purpose of this invention is to provide a kind of energy and adapt to big caliber, comprise the flow sensor of caliber at the discharge on-line determination needs more than 1 meter.
The foregoing invention purpose is realized by following technical scheme.
In tested pipeline (1), adorn a rectangle target plate (2) along xsect; One section circular axostylus axostyle (5) is respectively stretched out from the opening (3) on the tube wall of pipeline (1) both sides in target plate (2) two ends; Axostylus axostyle (5) places respectively on two supports (13) that are fixed on pipeline (1) both sides; Have by the sealing shroud (6) and the end that are fixed on the pipeline (1) outside the opening (3) and link to each other the packoff that the flexible bellow (7) that the other end links to each other with axostylus axostyle (5) is formed with sealing shroud (6); In axostylus axostyle (5) end, having with axostylus axostyle (5) is screw rod, and can match with the conical bolt hole on the end cap (9), can be used to adjust the tapered cup nut of this working sensor reference position.
Adopt the flow sensor of such scheme, respectively there is a support at its target plate two ends, realize supporting in a mode that contacts with circular axostylus axostyle, under water impact, very easily produce displacement, pass through instrument displaying flow again, thereby has higher precision and stability, can bear bigger acting force, adopt flexible bellow to seal in addition, anti-deformation is better.Determine the center of axostylus axostyle must not shut down and to carry out the zero-bit adjustment, thereby can satisfy big caliber with tapered nut, comprise the requirement of the online flow measurement of caliber more than 1 meter.Target plate is simple in structure, and is less demanding to the cleanliness of water, and has simple installation, advantages such as the pressure loss is little, thereby be particularly suitable for large-size thermal power plant output, quantity of circulating water, water power is given on-line metering monitorings such as hydraulic turbine inflow, and is significant to saving water and energy.
The key technical indexes: tested water pressure≤1Mpa, temperature≤200 ℃, laboratory check and correction error≤0.5%, systematic measurement error≤1%.
Introduce a kind of embodiment below in conjunction with accompanying drawing.
Fig. 1 is a main pseudosection of the present invention.
Fig. 2 is a vertical view of the present invention.
On the xsect of tested horizontal pipe (1), a rectangle stainless steel target plate (3) is installed, in order to improve the rigidity of target plate, there is a reinforcement at target plate (2) back side, thereby the target plate cross section is "T"-shaped, and the front of target plate is relative with water (flow) direction.Stretch out from two openings (3) of pipeline at the target plate two ends, the part of being stretched out is the annulus (4) of one section band screw, annulus (4) is connected with threaded axostylus axostyle (5) by screw, axostylus axostyle (5) outside is covered with sealing shroud (6), sealing shroud (6) one ends are connected mutually with pipeline (1) outer wall, one end cap (9) is arranged on the other end, below end cap (9), be pressed with sealing gasket (8), compress by gland (10), end cap has a coniform hole on (9), axostylus axostyle (5) stretches out in coniform hole, for under the prerequisite that does not influence axostylus axostyle (5) motion, the coniform hole on the end cap (9) being sealed, adopted very soft stainless steel substrates to make corrugated tube (7) and be enclosed within on the axostylus axostyle (5), corrugated tube one end welds mutually with end cap (9), and the other end is welded on the axostylus axostyle (5).The axostylus axostyle (5) that stretches out from end cap (9) upward has a tapered nut (11) that can match with the coniform hole of end cap (9) by screw thread, also have a groove (12), groove (12) places on the horizontal stand (13), make support (13) bear gravity, for improving sensitivity, support is blade-like, contacts for point with groove on the axostylus axostyle.Axostylus axostyle (5) end has the waling stripe (14) by nut (15) locking to connect with the dynamometer epiphase.
Before the use, need this sensor is demarcated, on pipeline, install then.During work, at first will and compress the coniform hole of tapered cup nut (11) screw-in end cap (9), at this moment, target is in the center, i.e. zero-bit.Adjust the waling stripe (14) that connects with the dynamometer epiphase again, make measuring system be output as zero, promptly finished the zero-bit adjustment.Again tapered nut (11) is screwed out coniform hole, the two is not contacted, the impulsive force of fluid promptly can cause the displacement of target plate (2), passes to the dynamometry instrument by waling stripe (14) again, demonstrates flow value.
Claims (4)
1, the invention provides a kind of apparatus for metering fluids, a kind of twin fulcrum target type flow sensor of forming by stressed member, support, packoff, adjusting gear, it is characterized in that said stressed member is mounted in the rectangle target plate (2) of tested horizontal pipe (1) the inside; Said support (13) has two, is separately fixed at the both sides of pipeline (1); A circular axostylus axostyle (5) is respectively stretched out from the opening (3) on the tube wall of both sides in target plate (2) two ends, places respectively on two supports (13); Its packoff is to be linked to each other with sealing shroud (6) by the sealing shroud (6) and the end of opening (3) fixed outside on pipeline (1), and the flexible bellow (7) that the other end links to each other with axostylus axostyle (5) is formed; Its adjusting gear is on axostylus axostyle (5), and having matches with conical bolt hole on the end cap (9) can adjust the tapered cup nut of this flow sensor job initiation position.
2, twin fulcrum target type flow sensor according to claim 1 is characterized in that: said target plate (2) back side is provided with reinforcement.
3, twin fulcrum target type flow sensor according to claim 1 is characterized in that: the stainless steel substrates of the available softness of said corrugated tube (7) is made.
4, twin fulcrum target type flow sensor according to claim 1 is characterized in that: said support (13) is that a groove horizontal positioned and axostylus axostyle (5) is realized the bladed support that point contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115086 CN1078305A (en) | 1992-12-12 | 1992-12-12 | Twin fulcrum target type flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115086 CN1078305A (en) | 1992-12-12 | 1992-12-12 | Twin fulcrum target type flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1078305A true CN1078305A (en) | 1993-11-10 |
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ID=4947258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92115086 Pending CN1078305A (en) | 1992-12-12 | 1992-12-12 | Twin fulcrum target type flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1078305A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043469A (en) * | 2015-05-20 | 2015-11-11 | 清华大学 | Flow sensor and manufacture method thereof |
| CN105675069A (en) * | 2016-03-08 | 2016-06-15 | 中国计量学院 | Distributed force laminar flow meter |
| CN105758470A (en) * | 2016-02-25 | 2016-07-13 | 中国计量学院 | Distributed force target flowmeter |
| CN107843303A (en) * | 2017-11-14 | 2018-03-27 | 华东师范大学 | A kind of flow sensor of built-in liquid metal post |
| CN108548573A (en) * | 2018-05-04 | 2018-09-18 | 湖南菲尔斯特传感器有限公司 | Differential pressure flowmeter |
| CN110595560A (en) * | 2019-10-12 | 2019-12-20 | 王俊玉 | Liquid flowmeter |
-
1992
- 1992-12-12 CN CN 92115086 patent/CN1078305A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043469A (en) * | 2015-05-20 | 2015-11-11 | 清华大学 | Flow sensor and manufacture method thereof |
| CN105758470A (en) * | 2016-02-25 | 2016-07-13 | 中国计量学院 | Distributed force target flowmeter |
| CN105758470B (en) * | 2016-02-25 | 2018-08-10 | 中国计量学院 | Distributed force target type meter |
| CN105675069A (en) * | 2016-03-08 | 2016-06-15 | 中国计量学院 | Distributed force laminar flow meter |
| CN107843303A (en) * | 2017-11-14 | 2018-03-27 | 华东师范大学 | A kind of flow sensor of built-in liquid metal post |
| CN108548573A (en) * | 2018-05-04 | 2018-09-18 | 湖南菲尔斯特传感器有限公司 | Differential pressure flowmeter |
| CN108548573B (en) * | 2018-05-04 | 2024-03-08 | 湖南菲尔斯特传感器有限公司 | Differential pressure flowmeter |
| CN110595560A (en) * | 2019-10-12 | 2019-12-20 | 王俊玉 | Liquid flowmeter |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |