CN202171481U - Integral gas mass flow meter of plug-in sensor integrated body - Google Patents

Integral gas mass flow meter of plug-in sensor integrated body Download PDF

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Publication number
CN202171481U
CN202171481U CN2011202271993U CN201120227199U CN202171481U CN 202171481 U CN202171481 U CN 202171481U CN 2011202271993 U CN2011202271993 U CN 2011202271993U CN 201120227199 U CN201120227199 U CN 201120227199U CN 202171481 U CN202171481 U CN 202171481U
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China
Prior art keywords
flow
sensor
plug
module
conglomerate
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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.)
Withdrawn - After Issue
Application number
CN2011202271993U
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Chinese (zh)
Inventor
熊小荣
范德林
戈剑
刘伟
成蓉
唐崇森
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SHANGHAI JIANGZHOU INSTRUMENT TECHNOLOGY CO LTD
FUJIAN SHANGRUN PRECISION INSTRUMENT Co Ltd
Original Assignee
SHANGHAI JIANGZHOU INSTRUMENT TECHNOLOGY CO LTD
FUJIAN SHANGRUN PRECISION INSTRUMENT Co Ltd
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Application filed by SHANGHAI JIANGZHOU INSTRUMENT TECHNOLOGY CO LTD, FUJIAN SHANGRUN PRECISION INSTRUMENT Co Ltd filed Critical SHANGHAI JIANGZHOU INSTRUMENT TECHNOLOGY CO LTD
Priority to CN2011202271993U priority Critical patent/CN202171481U/en
Application granted granted Critical
Publication of CN202171481U publication Critical patent/CN202171481U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to an integral gas mass flow meter of a plug-in sensor integrated body, which comprises a flow rate measurement pipeline shell, the plug-in sensor integrated body and a flow rate display device, wherein the plug-in sensor integrated body is formed by integrating a heat-sensing flow sensor and a vortex shedding flow meter, and comprises a pressure sensor, a piezoelectric probe, the heat-sensing flow sensor, a temperature sensor, a triangular prism vortex generating body and an air flow bypass channel of the heat-sensing flow sensor; the triangular prism vortex generating body is internally provided with the air flow bypass channel of the heat-sensing flow sensor; the incident flow surface of the triangular prism vortex generating body is provided with a plurality of air inlet holes which are communicated with tail flow air outlet holes arranged at the back of the triangular prism vortex generating body; a front straight pipe section of the air inlet holes is internally provided with the heat-sensing flow sensor which is used for measuring the flow rate of low-flow section gas; a rear straight pipe section is arranged at a tail outlet positioned at the back of the triangular prism vortex generating body; and the vortex shedding flow meter is connected with the temperature sensor and the pressure sensor, so that the measurement for the flow rate of high flow section gas can be realized.

Description

The integrated form mass-flow gas meter of plug in sensor conglomerate
Technical field
The utility model relates to a kind of mass-flow gas meter, particularly a kind of mass-flow gas meter of plug in sensor conglomerate structure.
Background technology
After traditional gas meter term of validity, need to deliver to detection unit after whole the flowmeter dismounting, road is far away, wastes time and energy, and influence is produced, the maintenance trouble.In identical bore measuring channel, can not exchange arbitrarily, interchangeability is poor, and it is little that range is measured width.Therefore, the gasmetry pattern that needs a kind of plug in sensor conglomerate.Make flowmeter in identical bore measuring channel, can exchange arbitrarily, reach the requirement of wide-range measurement performance.
Summary of the invention
The utility model is the integrated form gas meter that a kind of plug in sensor conglomerate will be provided, and this integrated form gas meter promotes the wide-range measurement performance by thermal flow and integrated the uniting two into one of the two measurement pattern of flux of vortex street comprehensively; In addition, adopt the integrated assembly of plug in sensor, insert corresponding pipeline shell easy and conveniently, measurement component can be replaced mutually, and production technology reaches coherence request, and on-the-spot the use reliably is easy to maintenance.
For realizing above-mentioned purpose; The technical scheme of the utility model is: a kind of integrated form mass-flow gas meter of plug in sensor conglomerate, comprise flow measurement pipeline housing, plug in sensor conglomerate and flow indicator, and be characterized in: the plug in sensor conglomerate is formed by thermal flow sensor and vortex shedding flow meter set; Comprise pressure transducer; Piezoelectric probe, thermal flow sensor, temperature sensor; Triangular prism vortex generation body, the bypass of gas flow passage of thermal flow sensor; Be provided with the bypass of gas flow passage of thermal flow sensor in the triangular prism vortex generation body; Offer several air admission holes on the fluoran stream surface of triangular prism vortex generation body; Several air admission holes are connected with the back side wake flow venthole of triangular prism vortex generation body; Be provided for the thermal flow sensor of low discharge section gas flow measurement in the preceding straight length of air admission hole, back straight length is opened in tail exit, the triangular prism vortex generation body back side; Vortex flow sensors is connected with temperature sensor, pressure transducer, realizes big flow section gas flow measurement.
Flow measurement pipeline housing comprises that measuring bore is: the pipeline of 25 mm~400mm, keep fluid rectifier in the pipeline, and filtrator, blowoff valve is placed in the bottom.
A circular thermal flow sensing chip is set in the preceding straight pipeline of air admission hole.
The plug in sensor conglomerate links to each other with flow indicator through annular knurl threaded collar, connecting rod.
Flow indicator comprises the CPU module, keys in module, display module, micro treatment module, power module, and display module sets gradually the key entry module at the back, CPU module, micro treatment module, power module; The micro treatment module signal input part respectively with pressure transducer, piezoelectric probe, the thermal flow sensor, the temperature sensor signal output terminal connects; The micro treatment module signal output part is connected with display module through the CPU module.
The beneficial effect of the utility model is: owing to adopted the integrated form gasmetry pattern of plug in sensor conglomerate structure, the insert structure that flowmeter is provided with is more reasonable, and dexterity is easily, convenient.When using the flowmeter of same bore, its plug in sensor conglomerate can be replaced highly versatile mutually.Owing to improved wide-range, stability and the reliability of flowmeter, made flowmeter performance show significant advantage.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the left cut-open view of Fig. 1;
Fig. 3 is the structural representation of plug in sensor conglomerate.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
Like Fig. 1, shown in 2, the integrated form mass-flow gas meter of the plug in sensor conglomerate of the utility model, mainly by flow measurement pipeline housing 2, plug in sensor conglomerate 3 is formed with little processing intelligent gas mass rate display 6.
Plug in sensor conglomerate mass-flow gas meter comprises flange 1, flow measurement pipeline housing 2, and plug in sensor conglomerate 3, colored screw thread goes bad 4, connecting rod 5, flow indicator 6.
Be equipped with pressure transducer 7 on the plug in sensor conglomerate (Fig. 3), piezoelectric probe 8, thermal flow sensor 9, temperature sensor 10, triangular prism vortex generation body 11, the bypass 12 of thermal flow rate sensor.
Triangular prism vortex generation body 11 is provided with the bypass of gas flow passage 12 of thermal flow sensor, offers several air admission holes on the fluoran stream surface of triangular prism vortex generation body 11.The air-flow of air admission hole extends to the back side wake flow venthole of triangular prism vortex generation body always, and the preceding straight length 14 of air admission hole is provided with the thermal flow sensor 9 of measuring low discharge, and back straight length is opened in tail exit, the triangular prism vortex generation body back side 15.
Flow measurement pipeline housing 2 comprises the measuring channel of various different bores, measures bore: 25 mm~400mm, built-in fluid rectifier, and filtrator, there is mudhole 13 bottom and places blowoff valve.
The plug in sensor conglomerate links to each other with flow indicator 6 through annular knurl threaded collar 4, connecting rod 5.Flow indicator 6 comprises CPU module 16, keys in module 17, display module 18, micro treatment module 19, power module 20.Display module 18 back set gradually keys in module 17, CPU module 16, micro treatment module 19, power module 20; Micro treatment module 19 signal input parts respectively with pressure transducer 7, piezoelectric probe 8, thermal flow sensor 9, temperature sensor 10 signal output parts connect; Micro treatment module 19 signal output parts are connected with display module 18 through CPU module 16.
The intelligent gas mass rate display of tape handling device; Realize match, demonstration through it to the rating curve of thermal flow measurements and flux of vortex street measured value; Can revise the zero point drift of instrument through measured temperature; Improved the flowmeter survey reliability, software has been equipped with the debugging functions of all gases compressibility factor.
The plug in sensor conglomerate can be changed arbitrarily in identical bore pipeline with display; Flow performance after the replacing keeps the normal on-the-spot requirement of maintenance fast that realizes basically; After equally it's valid period having been past field erected flowmeter; Need not whole table dismounting, exchange new plug in sensor conglomerate easily and get final product.
Plug in sensor conglomerate collection thermal flow sensor 9, piezoelectric probe 8, pressure transducer 7, temperature sensor 10 are one, accomplish the measurement of small-large flow with the plug in construction mode.Thermal flow sensor 9 is measured the low discharge section, and piezoelectric probe 8 combines pressure transducer 7 and temperature sensor 9 to measure big flow section.Unite two into one these two kinds of flow values, be combined into the integrated form mass-flow gas meter, it has been brought into play advantage separately, has overcome the deficiency, fills a vacancy each other.Make flowmeter performance show significant advantage.
The utility model can constitute the gas meter of difference in functionality, promptly first kind: the thermal mass-flow gas meter according to user's different needs.Second kind: the vortex street mass-flow gas meter.The third: the integrated form mass-flow gas meter.Particularly point out owing to adopt the measurement pattern of plug in sensor conglomerate, make flowmeter in same bore measuring channel, can exchange arbitrarily, it is simple and reliable to reach this flowmeter use, and measurement range is wide, the purpose of long service life.Adopt the software of little processing, calibration value is carried out the correction of auto zero point value.
Owing to adopt patent art, realized that flowmeter accuracy is good, stable performance, installation and maintenance are easy to use, and the replacement performance is good, and contamination resistance is strong, uses reliable and stable.
When measuring, need set split ratio, divide two sections measured zone by the upper and lower limit of split ratio, be the low discharge measured zone less than split ratio, measures with the thermal flow sensor.Greater than split ratio is big flow measurement zone, measures with vortex flow sensor.Two sections measured zone flow curves unite two into one, and have a common boundary in two sections measured zone of match and set an overlapping return difference zone.If flow during less than split ratio, is set at the low discharge measured zone, to measure with the thermal flow sensor, vortex flow sensors is surveyed to be gone out, and shows the rill value at this moment, is as the criterion with the flow value of thermal flow sensor measurement; If flow during greater than split ratio, is set at big flow measurement zone, to survey to go out with the thermal flow sensor, vortex flow sensor is measured, and the big flow of displayed value at this moment is as the criterion with the flow value of vortex flow sensors measurement; If flow is in the overlapping return difference zone of split ratio; Qualitative be the low discharge measured zone upper limit 80% with 20% of big flow measurement zone lower limit; Be set at overlapping return difference zone, at this moment, thermal flow sensor and vortex flow sensors are measured flow value jointly; Show flow value, the value of selecting the vortex flow sensors measurement to come out is as the criterion.When setting the overlapping return difference area measure in two sections zones, when thermal flow sensor and vortex flow sensors can be measured flow value jointly, two groups of flow curves that can obtain.The generation match is discontinuous, or flow curve is when discrete, and flow indicator adopts the transmission of quantity value means of tracing to the source can keep the seamless link of two groups of flows trends match, reaches the high requirement of measuring accuracy of integrated form mass-flow gas meter.
Comprehensively said, the integrated form mass-flow gas meter of the plug in sensor conglomerate of the utility model is pushed traditional mass-flow gas meter to a boundary; Core component through the plug in sensor conglomerate; The advantage that takes place is: in the measuring channel of same bore, flow measurement range is wide, and core component can be replaced mutually; Strengthen the versatility of instrument, can keep the consistance of production technology.The reliability of improving the quality of products, stability, simple in structure, easy to use, safeguard and realize the innovation of flowmeter easily, really can promote the market competitiveness of flowmeter.

Claims (5)

1. the integrated form mass-flow gas meter of a plug in sensor conglomerate; Comprise flow measurement pipeline housing (2), plug in sensor conglomerate (3) and flow indicator (6); It is characterized in that: said plug in sensor conglomerate (3) is formed by thermal flow sensor (9) and vortex shedding flow meter set, and it comprises pressure transducer (7), piezoelectric probe (8); Thermal flow sensor (9); Temperature sensor (10), triangular prism vortex generation body (11), the bypass of gas flow passage (12) of thermal flow sensor; Be provided with the bypass of gas flow passage (12) of thermal flow sensor in the triangular prism vortex generation body (11); Offer several air admission holes on the fluoran stream surface of triangular prism vortex generation body (11); Several air admission holes are connected with the back side wake flow venthole of triangular prism vortex generation body; Be provided for the thermal flow sensor (9) of low discharge section gas flow measurement in the preceding straight length (14) of air admission hole, back straight length is opened in tail exit, triangular prism vortex generation body (11) back side (15); Vortex flow sensors is connected with temperature sensor (10), pressure transducer (7), realizes big flow section gas flow measurement.
2. the integrated form mass-flow gas meter of plug in sensor conglomerate according to claim 1; It is characterized in that: said flow measurement pipeline housing (2) comprises that measuring bore is: the pipeline of 25 mm~400mm; Keep fluid rectifier in the pipeline, filtrator, blowoff valve is placed in the bottom.
3. the integrated form mass-flow gas meter of plug in sensor conglomerate according to claim 1 is characterized in that: a circular thermal flow sensing chip is set in the preceding straight pipeline (14) of said air admission hole.
4. the integrated form mass-flow gas meter of plug in sensor conglomerate according to claim 1 is characterized in that: said plug in sensor conglomerate (3) links to each other with flow indicator (6) through annular knurl threaded collar (4), connecting rod (5).
5. according to the integrated form mass-flow gas meter of claim 1 or 4 described plug in sensor conglomerates; It is characterized in that: said flow indicator (6) comprises CPU module (16), keys in module (17), display module (18), micro treatment module (19), power module (20); Display module (18) back sets gradually keys in module (17); CPU module (16), micro treatment module (19), power module (20); Micro treatment module (19) signal input part respectively with pressure transducer (7), piezoelectric probe (8), thermal flow sensor (9), temperature sensor (10) signal output part connects; Micro treatment module signal (19) output terminal is connected with display module (18) through CPU module (16).
CN2011202271993U 2011-06-30 2011-06-30 Integral gas mass flow meter of plug-in sensor integrated body Withdrawn - After Issue CN202171481U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202271993U CN202171481U (en) 2011-06-30 2011-06-30 Integral gas mass flow meter of plug-in sensor integrated body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202271993U CN202171481U (en) 2011-06-30 2011-06-30 Integral gas mass flow meter of plug-in sensor integrated body

Publications (1)

Publication Number Publication Date
CN202171481U true CN202171481U (en) 2012-03-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102279025A (en) * 2011-06-30 2011-12-14 福建上润精密仪器有限公司 Integrated gas mass flow meter for plug-in sensor integrated component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102279025A (en) * 2011-06-30 2011-12-14 福建上润精密仪器有限公司 Integrated gas mass flow meter for plug-in sensor integrated component
CN102279025B (en) * 2011-06-30 2013-02-20 福建上润精密仪器有限公司 Integrated gas mass flow meter for plug-in sensor integrated component

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RGAV Abandon patent right to avoid regrant
AV01 Patent right actively abandoned

Granted publication date: 20120321

Effective date of abandoning: 20130227