CN201707086U - Flow measuring meter of mixed gas - Google Patents
Flow measuring meter of mixed gas Download PDFInfo
- Publication number
- CN201707086U CN201707086U CN2010202206400U CN201020220640U CN201707086U CN 201707086 U CN201707086 U CN 201707086U CN 2010202206400 U CN2010202206400 U CN 2010202206400U CN 201020220640 U CN201020220640 U CN 201020220640U CN 201707086 U CN201707086 U CN 201707086U
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- piezoelectric crystal
- differential pressure
- verabar
- rectifier
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Abstract
The utility model discloses a flow measuring meter of mixed gas, comprising a shell (5), a standard triangular vortex generator (1), a piezoelectric crystal (2), a rectifier (3), a standard Verabar differential pressure measuring piece (4) and a processing display (6), wherein the standard triangular vortex generator (1) is installed in the shell (5) in which the piezoelectric crystal (2) positioned behind the standard triangular vortex generator (1) is welded, the back part of the piezoelectric crystal (2) in the shell (5) is welded with the rectifier (3), the standard Verabar differential pressure measuring piece (4) positioned behind the rectifier (3) is installed in the shell (5), and the piezoelectric crystal (2) and the standard Verabar differential pressure measuring piece (4) are together connected with the processing display (6). The flow measuring meter adopts a speed type flow meter to calculate a volume flow in a pipeline, then calculate a density according to the volume flow and finally calculate a mass flow according to the density. The measuring meter has the advantages of simple structure, real-time measurement and high accuracy and meets the requirements of industrial on-line production and measurement.
Description
Technical field
The utility model relates to the flow measurement meter, is specifically related to the flow measurement meter of mixed gas.
Background technology
As everyone knows, during the restriction device measurement gas, must know gas density in advance, its pressure reduction just can calculate, according to the differential pressure calculated flow rate, constantly change again, use temperature and pressure compensation effectively to revise density even we know if measure the density of mixed gas, therefore, huge error will appear in restriction device measurement mixed gas flow.Though vortex shedding flow meter is measured the operating mode volumetric flow rate without density calculation, accuracy is than higher, and the flow measurement of mixed gas mark condition is inaccurate, is that density can't effectively be measured and causes equally.Though mass-flow gas meter has superiority at the measurement gas flow, but it can't accurately be set owing to thermal capacitance, so accuracy is affected, in fact, the measurement of mixed gas flow is a difficulties in measuring always, particularly the continuous gas flow measurement that changes of reference is blank especially, its main cause is that mixed gas density can't accurately be measured, and can only estimate, if this gas componant changes, its density is more uncertain, and measured deviation more strengthens.
Summary of the invention
The purpose of this utility model is: the flow measurement meter that a kind of mixed gas is provided, adopt velocity flowmeter to calculate volumetric flow rate in the pipeline, calculate density by volumetric flow rate, according to the density calculation mass rate, meter is simple in structure, measure in real time, the accuracy height satisfies industrial online production measurement requirement.
Technical solution of the present utility model is: this meter comprises housing, standard triangle vortex generation body, piezoelectric crystal, rectifier, standard Verabar differential pressure measurement part and processing display, at enclosure interior installation code triangle vortex generation body, be positioned at the rear portion welding piezoelectric crystal of standard triangle vortex generation body in the housing, the rear portion welding rectifier of piezoelectric crystal in the housing, be positioned at the rear portion installation code Verabar differential pressure measurement part of rectifier in the housing, piezoelectric crystal and standard Verabar differential pressure measurement part be the connection processing display altogether.
During use, the housing of meter is installed on the pipeline; Mixed gas at first produces the toll bar vortex by standard triangle vortex generation body in the pipeline, and piezoelectric crystal is frequency signal output with the vortex conversion of signals; Secondly rectifier carries out rectification to mixed gas, by standard Verabar differential pressure measurement part output differential pressure signal; Last treated display processes and displays result.
The present invention has the following advantages: 1, body takes place adopt standard vortex triangle generation body structure, piezoelectric crystal adopts standard vortex sonde configuration, improves whole measurement stability and precision; 2, rectifier helps to reduce the interference of vortex street vortex to standard Verabar differential pressure measurement part, and fluid produces through standard Verabar differential pressure measurement part stablizes differential pressure signal, improves whole measurement stability and precision; 3, adopt standard vortex triangle generation body and standard Verabar differential pressure measurement part, both cooperatively interact additional, gather in real time constantly to change density, measure accurately, reliable and stable, debugging is simple, and is rational in infrastructure, easy to use, the pressure loss is little, meets environmental protection and energy-conservation requirement; 4, avoid huge apparatus investment cost and the maintenance cost of using the professional quality flowmeter to bring, avoid the measuring error of using general instrument to bring again, can be widely used in organic chemical industry, electric power, food, environmental protection industry (epi), have broad application prospects.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a standard triangle vortex generation body structure synoptic diagram
Fig. 3 is the rectifier structure synoptic diagram
Fig. 4 is a standard Verabar differential pressure measurement part partial schematic diagram
Among the figure: 1 standard triangle vortex generation body, 2 piezoelectric crystals, 3 rectifiers, 4 standard Verabar differential pressure measurement parts, 5 housings, 6 processing display.
Embodiment
Shown in Fig. 1-4, this meter comprises housing 5, standard triangle vortex generation body 1, piezoelectric crystal 2, rectifier 3, standard Verabar differential pressure measurement part 4 and processing display 6, at housing 5 inner installation code triangle vortex generation bodies 1, be positioned at the rear portion welding piezoelectric crystal 2 of standard triangle vortex generation body 1 in the housing 5, the rear portion welding rectifier 3 of piezoelectric crystal 2 in the housing 5, be positioned at the rear portion installation code Verabar differential pressure measurement part 4 of rectifier 3 in the housing 5, piezoelectric crystal 2 and standard Verabar differential pressure measurement part 4 be connection processing display 6 altogether.
During use, the housing 5 of meter is installed on the pipeline; Mixed gas at first produces the toll bar vortex by standard triangle vortex generation body 1 in the pipeline, and piezoelectric crystal 2 is frequency signal output with the vortex conversion of signals; Secondly 3 pairs of mixed gass of rectifier carry out rectification, by standard Verabar differential pressure measurement part 4 output differential pressure signals; Last treated display 6 processes and displays results.
Claims (1)
1. the flow measurement meter of mixed gas, it is characterized in that: this meter comprises housing (5), standard triangle vortex generation body (1), piezoelectric crystal (2), rectifier (3), standard Verabar differential pressure measurement part (4) and processing display (6), at housing (5) inner installation code triangle vortex generation body (1), be positioned at the rear portion welding piezoelectric crystal (2) of standard triangle vortex generation body (1) in the housing (5), the rear portion welding rectifier (3) of the interior piezoelectric crystal of housing (5) (2), be positioned at the rear portion installation code Verabar differential pressure measurement part (4) of rectifier (3) in the housing (5), piezoelectric crystal (2) and standard Verabar differential pressure measurement part (4) be connection processing display (6) altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202206400U CN201707086U (en) | 2010-06-04 | 2010-06-04 | Flow measuring meter of mixed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202206400U CN201707086U (en) | 2010-06-04 | 2010-06-04 | Flow measuring meter of mixed gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201707086U true CN201707086U (en) | 2011-01-12 |
Family
ID=43444249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202206400U Expired - Fee Related CN201707086U (en) | 2010-06-04 | 2010-06-04 | Flow measuring meter of mixed gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201707086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593018A (en) * | 2018-06-05 | 2018-09-28 | 润电能源科学技术有限公司 | A kind of vacuum pump pumping system for measuring quantity, vacuum pump and vacuum system |
| CN109592073A (en) * | 2018-11-05 | 2019-04-09 | 中国航空工业集团公司西安飞机设计研究所 | A kind of cabin safety valve ground performance test method |
-
2010
- 2010-06-04 CN CN2010202206400U patent/CN201707086U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593018A (en) * | 2018-06-05 | 2018-09-28 | 润电能源科学技术有限公司 | A kind of vacuum pump pumping system for measuring quantity, vacuum pump and vacuum system |
| CN109592073A (en) * | 2018-11-05 | 2019-04-09 | 中国航空工业集团公司西安飞机设计研究所 | A kind of cabin safety valve ground performance test method |
| CN109592073B (en) * | 2018-11-05 | 2022-07-12 | 中国航空工业集团公司西安飞机设计研究所 | Cabin safety valve ground performance test method |
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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: 20110112 Termination date: 20110604 |