CN201488761U - Integrated gas mass flow meter - Google Patents
Integrated gas mass flow meter Download PDFInfo
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- CN201488761U CN201488761U CN2009200718365U CN200920071836U CN201488761U CN 201488761 U CN201488761 U CN 201488761U CN 2009200718365 U CN2009200718365 U CN 2009200718365U CN 200920071836 U CN200920071836 U CN 200920071836U CN 201488761 U CN201488761 U CN 201488761U
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Abstract
The utility model discloses an integrated gas mass flow meter, which mainly comprises a primary instrument composed of a pipeline casing, a triangle prism vortex generator, a detector and a sensor, and a secondary instrument which mainly consists of a micro-processing signal control module, and is characterized in that the detector consists of a shock-proof vortex mass flow detector and a calorimetric mass flow detector, the sensor is a calorimetric sensor, the secondary instrument is mainly formed through connecting a micro-processing signal control module, a key module, a power module, a storage module, a display module and an output module. As adopting the flow detector which integrates two measurement modes, the performances of the flow meter prominently present. The flow meter has simple use, wide measurement range, strong pollution resistance ability and long service life, does not need a rectifier and a filter, adopts the micro-processing control module to carry out the automatic zero drift correction for check calibrated values, and improves the stability and reliability.
Description
Technical field
The utility model relates to a kind of mass-flow gas meter, particularly a kind of integrated form mass-flow gas meter.
Background technology
Traditional gas meter is the single-measurement pattern, measures big flow, can not survey low discharge.Measure low discharge, can not survey big flow.Flow measurement range is narrow, in order to satisfy the wide request for utilization of measurement range, a piping flow is often taked many flowmeters, finish respectively greatly, in, low discharge is measured, and causes cost to rise, and uses trouble.
Summary of the invention
The technical problems to be solved in the utility model is how a kind of integrated form mass-flow gas meter is provided, and this flow is counted the integrated form design, and is integrated two kinds of flow detection patterns, integrates, and improves the wide-range measurement performance comprehensively.
The technical solution of the utility model is: a kind of integrated form mass-flow gas meter, it mainly comprises by pipeline shell, triangular prism vortex generation body, detecting device, primary instrument that sensor is formed and the secondary instrument that mainly constitutes by little processing signals control module, it is characterized in that, described detecting device comprises antidetonation type vortex mass flow sensor, the calorimetric mass flow sensor, described sensor is the calorimetric sensor, described secondary instrument is mainly by little processing signals control module, key in module, power module, storage module, display module, output module is formed by connecting, and be arranged on the pipeline shell outside, described antidetonation type vortex mass flowmeter detecting device, calorimetric mass flow sensor are arranged in the duct chamber and with pipeline shell and link to each other.
Described antidetonation type vortex mass flowmeter detecting device is mainly by surveying swirl element, temperature element, load cell and pedestal are formed, described survey swirl element, temperature element, load cell places pedestal, survey swirl element, temperature element, all arrange by the center of circle horizontal linear load cell position, with the fluid fluoran stream surface surface level direction that exists together, described survey swirl element is arranged on the center of pedestal, temperature element is arranged on the downstream of surveying swirl element, load cell is arranged on the upstream of surveying swirl element, place the triangular prism vortex generation body fluoran stream surface unlatching tap hole of measuring channel fluid to be directed to the by-pass line of stipulating by split ratio, the wall upper end, boundary layer of by-pass line is provided with a circular substrate, and described calorimetric sensor is positioned at the lower end of substrate and is positioned at the upper end, cross section, border of by-pass line.
The beneficial effects of the utility model are: owing to adopt the flow detector of integrated two kinds of measurement patterns, performance advantage separately overcomes the deficiency, and unites two into one, and fills a vacancy mutually, makes flowmeter performance show significant advantage.The use traffic timing need not rectifier, need not filtrator, reduces use cost, contamination resistance strengthens, and in the serviceable life of having improved flowmeter, has adopted little processing signals control module, the verification calibration value is carried out the automatic zero point drift correction, improved the stability and the reliability of flowmeter.Finally, studied successfully the utility model provide the accuracy height, stable and reliable for performance, measurement range is wide, the integrated form mass-flow gas meter of simple in structure, easy to use, long service life.
Description of drawings
Fig. 1 is the logic diagram of integrated form mass-flow gas meter provided by the utility model;
Fig. 2 is the structural representation of integrated form mass-flow gas meter provided by the utility model;
Fig. 3 is the diagrammatic cross-section of integrated form mass-flow gas meter provided by the utility model;
Fig. 4 is the synoptic diagram of integrated form mass-flow gas meter provided by the utility model " antidetonation type vortex mass flow sensor ";
Fig. 5 is integrated form mass-flow gas meter provided by the utility model " calorimetric quality detection module " synoptic diagram;
Fig. 6 is the calorimetric sensor synoptic diagram of integrated form mass-flow gas meter provided by the utility model.
Among the figure: 1, flange, 2, triangular prism vortex generation body, 3, antidetonation type vortex mass flow sensor, 4, the calorimetric mass flow sensor, 5, base, 6, web member, 7, gauge outfit, 8, measuring channel, 9, by-pass line, 10, circular substrate, 11, the calorimetric sensor, 12 power modules, 13, little processing signals control module, 14, key in module, 15, display module, 16, watchcase, 17, temperature element, 18, pressure detecting element, 19, survey swirl element, 20, base, 21, the calorimetric quality module, 22, the calorimetric sensor, 23, the Si substrate, 24, diaphragm, 25, calandria, 26,27 temperature test elements
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
A kind of integrated form mass-flow gas meter, it mainly comprises by pipeline shell, primary instrument that triangular prism vortex generation body, detecting device, sensor are formed and the secondary instrument that mainly constitutes by little processing signals control module, by shown in Figure 2, described detecting device comprises antidetonation type vortex mass flow sensor 3, calorimetric mass flow sensor 4, described sensor is a calorimetric sensor 22, is equipped with calorimetric quality module 21 on the calorimetric sensor 22, by shown in Figure 5.Described secondary instrument is by shown in Figure 1, mainly be formed by connecting by little processing signals control module, key entry module, power module, storage module, display module, output module, and be arranged on the pipeline shell outside, by shown in Figure 3, power module 12, little processing and control module 13, key entry module 14, display module 15 are arranged in the inner chamber of watchcase 16.By shown in Figure 2, described triangular prism vortex generation body 2 is arranged in the inner cavity of pipe of table body 8, specifically be arranged in the suitable dimensions scope, described antidetonation type vortex mass flowmeter detecting device 3 is arranged on measuring channel 8 inner chamber inscribes and is connected with base 5, the mass rate of big flow in the measurement, calorimetric mass flow sensor 4 is arranged in base 5 and the bypass duct 9, measures the mass rate of low discharge.
Antidetonation type vortex mass flowmeter detecting device 3 is by shown in Figure 4, mainly by surveying swirl element 19, temperature element 17, load cell 18 and pedestal 20 are formed, described survey swirl element 19, temperature element 17, load cell 18 places pedestal 20, survey swirl element 19, temperature element 17, all arrange by the center of circle horizontal linear load cell 18 positions, with the fluid fluoran stream surface surface level direction that exists together, described survey swirl element 19 is arranged on the center of pedestal 20, temperature element 17 is arranged on the upstream of surveying swirl element 19, load cell 18 is arranged on the upstream (representing upstream and downstream with the arrow side shown under Fig. 4) of surveying swirl element 19, by shown in Figure 2, the triangular prism vortex generation body 2 fluoran stream surfaces unlatching tap hole that is arranged in the measuring channel 8 is directed to fluid in the by-pass line of stipulating by split ratio 9, the wall upper end, boundary layer of by-pass line 9 is provided with a circular substrate 10, and described calorimetric sensor 11 is positioned at the lower end of substrate 10 and is positioned at the upper end, cross section, border of by-pass line 9.
By shown in Figure 6, the body of calorimetric mass flow sensor 4 is a Si substrate 23,, diaphragm 24 is set on the supporting surface of Si substrate 23, at diaphragm 24 calandria 25 and two temperature test elements 26 and 27 are set then.
According to integrated form mass-flow gas meter provided by the utility model, 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, consumption thermal mass flow detecting device is measured.Greater than split ratio is big flow measurement zone, measures with antidetonation type vortex mass flow sensor.Two sections measured zone flow curves unite two into one, and measure with secondary instrument (little processing signals control module is keyed in module, power module, storage module, display module, output module).Set an overlapping return difference zone in two sections measured zone boundaries of match.If flow is during less than split ratio, be set at the low discharge measured zone, consumption thermal mass flow detecting device is measured, and antidetonation type vortex mass flowmeter detecting device can not surveyed, this moment little processing signals control module displayed value, the mass flow value of measuring with the calorimetric mass flow sensor is as the criterion; If flow is during greater than split ratio, be set at big flow measurement zone, consumption thermal mass flow detecting device can not surveyed, and antidetonation type vortex mass flow sensor is measured, this moment, little processing signals control module displayed value was as the criterion with the mass flow value of antidetonation type vortex mass flow sensor measurement amount; 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, calorimetric mass flow sensor and antidetonation type vortex mass flow sensor can be measured flow value jointly, little processing signals control module displayed value, the value of selecting antidetonation type vortex mass flowmeter detectors measure to come out is as the criterion.When setting the overlapping return difference area measure in two sections zones, when equivalent hot type mass flow sensor and antidetonation type vortex mass flow sensor 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 little processing signals control module adopts the transmission of quantity value means of tracing to the source can keep the seamless link of two groups of flow curve matches, reaches the high requirement of measuring accuracy of integrated form mass-flow gas meter.
In sum, the invention of this integrated form mass-flow gas meter, push traditional gaseous mass meter to a boundary, owing to pass through to antidetonation type vortex mass flow sensor, calorimetric mass flow sensor and secondary instrument (little processing signals control module, key in module, power module, storage module, display module, output module), in conjunction with the notable feature of itself, use and need not rectifier again, need not filtrator, contamination resistance is strong, the accuracy height, stable and reliable for performance, measurement range is wide, simple in structure, easy to use, the integrated form mass-flow gas meter of long service life reaches the innovation of flowmeter, really can promote the competitive power in flowmeter market.
Claims (3)
1. integrated form mass-flow gas meter, it mainly comprises by pipeline shell, triangular prism vortex generation body, detecting device, primary instrument that sensor is formed and the secondary instrument that mainly constitutes by little processing signals control module, it is characterized in that, described detecting device comprises antidetonation type vortex mass flow sensor, the calorimetric mass flow sensor, described sensor is the calorimetric sensor, described secondary instrument is mainly by little processing signals control module, key in module, power module, storage module, display module, output module is formed by connecting, and be arranged on the pipeline shell outside, described antidetonation type vortex mass flowmeter detecting device, calorimetric mass flow sensor are arranged in the duct chamber and with pipeline shell and link to each other.
2. according to right 1 described integrated form mass-flow gas meter, it is characterized in that, described antidetonation type vortex mass flowmeter detecting device is mainly by surveying swirl element, temperature element, load cell and pedestal are formed, described survey swirl element, temperature element, load cell places pedestal, survey swirl element, temperature element, all arrange by the center of circle horizontal linear load cell position, with the fluid fluoran stream surface surface level direction that exists together, described survey swirl element is arranged on the center of pedestal, temperature element is arranged on the downstream of surveying swirl element, load cell is arranged on the upstream of surveying swirl element, place the triangular prism vortex generation body fluoran stream surface unlatching tap hole of measuring channel fluid to be directed to the by-pass line of stipulating by split ratio, the wall upper end, boundary layer of by-pass line is provided with a circular substrate, and described calorimetric sensor is positioned at the lower end of substrate and is positioned at the upper end, cross section, border of by-pass line.
3. according to right 1 described integrated form mass-flow gas meter, it is characterized in that, the body of described calorimetric mass flow sensor is the Si substrate, on the supporting surface of Si substrate diaphragm is set, and at diaphragm a calandria and two temperature test elements is set then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200718365U CN201488761U (en) | 2009-05-08 | 2009-05-08 | Integrated gas mass flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200718365U CN201488761U (en) | 2009-05-08 | 2009-05-08 | Integrated gas mass flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201488761U true CN201488761U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200718365U Expired - Fee Related CN201488761U (en) | 2009-05-08 | 2009-05-08 | Integrated gas mass flow meter |
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| CN (1) | CN201488761U (en) |
Cited By (1)
| 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 |
-
2009
- 2009-05-08 CN CN2009200718365U patent/CN201488761U/en not_active Expired - Fee Related
Cited By (2)
| 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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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: 20100526 Termination date: 20110508 |