CN206056739U - Detection of gas flow rate metering device - Google Patents
Detection of gas flow rate metering device Download PDFInfo
- Publication number
- CN206056739U CN206056739U CN201620887542.XU CN201620887542U CN206056739U CN 206056739 U CN206056739 U CN 206056739U CN 201620887542 U CN201620887542 U CN 201620887542U CN 206056739 U CN206056739 U CN 206056739U
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- CN
- China
- Prior art keywords
- measured
- gas flow
- effusion meter
- detection
- pressure
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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.)
- Expired - Fee Related
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Abstract
Detection of gas flow rate metering device of the present utility model, pressure and the temperature after table before each effusion meter to be measured can be detected in detection process, the temperature before venturi nozzle for critical flow method gas flow standard device nozzle is detected simultaneously, pressure, it is transported in computer control, temperature before computer control system collection venturi nozzle for critical flow method gas flow standard device nozzle, pressure at pressure and effusion meter, temperature simultaneously can be to temperature, pressure compensating for variations after computer compares process, effusion meter to be measured is provided with fairing, it is capable of the air-flow of rectification upstream inlet pipeline, make air-flow more stable, when can guarantee that gas flows through again, the pressure loss is less；Computer control system control nozzle switch combination, precise control calibrating flow, simple structure are easy to operate, high degree of automation, it is possible to increase detection efficiency and accuracy of detection.
Description
Technical field
This utility model is related to a kind of detection of gas flow rate metering device, is applied particularly in measurement instrument verifying attachment.
Background technology
Venturi nozzle for critical flow method gas flow standard device is as main gas flow standard device in gas stream
Used in amount calibration operation in a large number, but existing venturi nozzle for critical flow method gas flow standard device control operation mode
For manually, verification result process can not reach Automated condtrol requirement using artificial calculating, technical specification and configuration, every time
Inspection table can only also examine and determine an effusion meter, and range of flow is not wide enough, detect inefficiency.
The content of the invention
It is high that technical problem to be solved in the utility model is to provide a kind of automaticity, work efficiency, calibration accuracy
Detection of gas flow rate metering device.
Detection of gas flow rate metering device of the present utility model, including lifting platform, can lay at least one on lifting platform
Effusion meter to be measured, effusion meter to be measured connect venturi nozzle for critical flow method gas flow standard device by air inlet pipeline, critical
Stream venturi nozzle method gas flow standard device includes air accumulator, vacuum pump, nozzle, stagnation container, it is characterised in that：Institute
The air inlet pipeline for stating effusion meter to be measured is connected with the pressure transducer P that can detect flow meter pressure to be measuredB1, detection treat measurement of discharge
The temperature sensor T of meter temperatureB, it is provided with the stagnation container of venturi nozzle for critical flow method gas flow standard device
The pressure transducer P of detection stagnation container pressureAWith the temperature sensor T of detection stagnation vessel tempA；Flow measurement is treated in the connection
The pressure transducer P of gaugeB1, temperature sensor TBSignal output part connects the signal acquisition terminal of computer control system, connection
The pressure transducer P of the stagnation container of venturi nozzle for critical flow method gas flow standard deviceA, temperature sensor TAThe number of accepting and believing
Outfan also connects the signal acquisition terminal of computer control system；The signal acquisition terminal of computer control system is also connected to each
The pulse signal output end of effusion meter to be measured, lifting platform can accurately adjust the position of effusion meter to be measured and ensure and air inlet pipeline
Pipeline centering；
The air inlet pipeline is extend in venturi nozzle for critical flow method gas flow standard device；
Before and after the effusion meter to be measured, both sides are respectively provided with straight tube, pressure transducer PB1Positioned at the front side of effusion meter to be measured
On straight tube, temperature sensor TBOn the straight tube on rear side of effusion meter to be measured；
Corrugated tube is provided with rear side of the effusion meter to be measured；
The effusion meter air inlet pipeline to be measured is provided with fairing, and fairing is commutator；
There is on the air inlet pipeline deafener；
The air-actuated jaw that can clamp effusion meter to be measured is additionally provided between the effusion meter to be measured and deafener；Pneumatic clamps
Tool is using the QSS type pneumatic expansion joints with air inlet pipeline same diameter；
The effusion meter bore to be measured is DN32.
Detection of gas flow rate metering device of the present utility model, before each effusion meter to be measured can be detected in detection process
Temperature after pressure and table, while the temperature before venturi nozzle for critical flow method gas flow standard device nozzle, pressure are detected,
It is transported in computer control, computer control system collection venturi nozzle for critical flow method gas flow standard device nozzle
Pressure, temperature at front temperature, pressure and effusion meter simultaneously can be mended to temperature, pressure change after computer compares process
Repay, effusion meter to be measured is provided with fairing, be capable of the air-flow of rectification upstream inlet pipeline, make air-flow more stable, can guarantee that again
When gas flows through, the pressure loss is less；Computer control system control nozzle switch combination, precise control calibrating flow, structure letter
Single operation is convenient, high degree of automation, it is possible to increase detection efficiency and accuracy of detection.
Description of the drawings
Fig. 1 is the structural representation of this utility model embodiment.
1, vacuum pump and air accumulator in figure；2nd, nozzle；3rd, stagnation container；4th, air inlet pipeline；5th, corrugated tube；6th, commutator；
7th, air-actuated jaw；8th, deafener；9th, computer control system；10th, shaking type lifting platform.
Specific embodiment
As illustrated, detection of gas flow rate metering device structure setting in the present embodiment be two effusion meters to be measured simultaneously
Calibrating, it is adaptable to be measured effusion meter of the bore for DN32, arranges lifting platform 10 first, can lay two simultaneously on lifting platform 10
Effusion meter to be measured, effusion meter to be measured connect venturi nozzle for critical flow method gas flow standard device by air inlet pipeline 4, critical
Stream venturi nozzle method gas flow standard device includes air accumulator and vacuum pump 1, nozzle 2, stagnation container 3, air accumulator with
Vacuum pump 1, nozzle 2 provide source of the gas, the output critical pressure of stagnation container 3 for venturi nozzle for critical flow method gas flow standard device
Strength stream, the air inlet pipeline 4 of effusion meter to be measured is connected with being capable of two pressure transducer P for detecting flow meter pressure to be measuredB1With
PB2, detect the temperature sensor T of flow meter temperature to be measuredB, the stagnation of venturi nozzle for critical flow method gas flow standard device
It is provided with detecting the pressure transducer P of 3 pressure of stagnation container on container 3AWith the temperature sensing of 3 temperature of detection stagnation container
Device TA；The pressure transducer P for connecting effusion meter to be measuredB1And PB2, temperature sensor TBSignal output part connects computer control
The signal acquisition terminal of system processed 9, connects the pressure sensing of venturi nozzle for critical flow method gas flow standard device stagnation container 3
Device PA, temperature sensor TAAdopt the signal acquisition terminal that signal output part also connects computer control system 9；Computer control system 9
Signal acquisition terminal be also connected to the pulse signal output end of each effusion meter to be measured, lifting platform 10 can accurately be adjusted and treat flow measurement
The position of gauge ensures the pipeline centering with air inlet pipeline 4.
Air inlet pipeline 4 is extend in venturi nozzle for critical flow method gas flow standard device；Before and after effusion meter to be measured
Both sides are respectively provided with straight tube, pressure transducer PB1And PB2On the straight tube of the front side of effusion meter to be measured, temperature sensor TBIt is located at
On straight tube on rear side of effusion meter to be measured；Corrugated tube 5 is provided with rear side of second effusion meter to be measured, corrugated tube 5 can adjust air inlet
4 length of pipeline causes effusion meter to be measured to be in suitable position；It is connected on air inlet pipeline 4 after two effusion meter series connection to be measured；
Commutator is provided between two effusion meters to be measured；There is on air inlet pipeline 4 deafener 8, deafener is reduced in detection process
Sound pollution；The air-actuated jaw 7 that can clamp effusion meter to be measured is additionally provided between effusion meter to be measured and deafener 8；It is pneumatic
Fixture 7 is using the QSS type pneumatic expansion joints with 4 same diameter of air inlet pipeline.
Detection of gas flow rate metering device of the present utility model, passes through pressure transducer, temperature sensing in detection process
Device detects the pressure before each effusion meter to be measured and the temperature after table, and venturi nozzle for critical flow method gas flow standard dress
The temperature before nozzle, pressure are put, in computer control system, computer control system collection is critical for detection data information conveyance
The pressure at temperature, pressure and effusion meter before stream venturi nozzle method gas flow standard device nozzle, temperature data information
And temperature, pressure change are compensated after computer compares process, and it is whole by the commutator between two tested tables
The air-flow that the tested effusion meter of stream upstream is discharged, makes air-flow more stable, while reducing the ventilation loss of stream pressure so that air-flow
Pressure meets the authorized pressure of two effusion meters；Calibrating every time all passes through to gather corresponding venturi nozzle for critical flow method gas
The pressure at temperature, pressure and effusion meter before flow standard device nozzle, temperature, then carry out temperature, pressure compensating for variations,
Computer control system control nozzle switch combination, precise control calibrating flow, simple structure are easy to operate, automaticity
It is high, it is possible to increase detection efficiency and accuracy of detection.
Claims (8)
1. a kind of detection of gas flow rate metering device, including lifting platform（10）, lifting platform（10）On can lay at least one and treat
Flow measurement gauge, effusion meter to be measured pass through air inlet pipeline（4）Connection venturi nozzle for critical flow method gas flow standard device, it is critical
Stream venturi nozzle method gas flow standard device includes air accumulator and vacuum pump（1）, nozzle（2）, stagnation container（3）, its
It is characterised by：The air inlet pipeline of the effusion meter to be measured（4）It is connected with the pressure transducer that can detect flow meter pressure to be measured
PB1, detect the temperature sensor T of flow meter temperature to be measuredB, the stagnation of venturi nozzle for critical flow method gas flow standard device
Container（3）On be provided with detect stagnation container（3）The pressure transducer P of pressureAWith detection stagnation container（3）The temperature of temperature
Degree sensor TA；The pressure transducer P for connecting effusion meter to be measuredB1, temperature sensor TBSignal output part connects computer
Control system（9）Signal acquisition terminal, connect venturi nozzle for critical flow method gas flow standard device stagnation container（3）'s
Pressure transducer PA, temperature sensor TAAdopt signal output part and also connect computer control system（9）Signal acquisition terminal；Calculate
Machine control system（9）Signal acquisition terminal be also connected to the pulse signal output end of each effusion meter to be measured, lifting platform（10）Energy
Enough positions for accurately adjusting effusion meter to be measured ensure and air inlet pipeline（4）Pipeline centering.
2. detection of gas flow rate metering device according to claim 1, it is characterised in that：The air inlet pipeline（4）Stretch into
To in venturi nozzle for critical flow method gas flow standard device.
3. detection of gas flow rate metering device according to claim 1, it is characterised in that：Before and after the effusion meter to be measured
Both sides are respectively provided with straight tube, pressure transducer PB1On the straight tube of the front side of effusion meter to be measured, temperature sensor TBPositioned to be measured
On straight tube on rear side of effusion meter.
4. detection of gas flow rate metering device according to claim 1, it is characterised in that：Set on rear side of the effusion meter to be measured
It is equipped with corrugated tube（5）.
5. detection of gas flow rate metering device according to claim 1, it is characterised in that：The effusion meter air inlet pipe to be measured
Road (4) is provided with fairing, and fairing is commutator（6）.
6. detection of gas flow rate metering device according to claim 1, it is characterised in that：The air inlet pipeline（4）Upper tool
There is deafener（8）.
7. detection of gas flow rate metering device according to claim 1, it is characterised in that：The effusion meter to be measured and noise reduction
Device（8）Between be additionally provided with the air-actuated jaw that can clamp effusion meter to be measured（7）；Air-actuated jaw（7）Using with air inlet pipeline（4）
The QSS type pneumatic expansion joints of same diameter.
8. detection of gas flow rate metering device according to claim 1, it is characterised in that：The effusion meter bore to be measured is
DN32。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887542.XU CN206056739U (en) | 2016-08-16 | 2016-08-16 | Detection of gas flow rate metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887542.XU CN206056739U (en) | 2016-08-16 | 2016-08-16 | Detection of gas flow rate metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206056739U true CN206056739U (en) | 2017-03-29 |
Family
ID=58380877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620887542.XU Expired - Fee Related CN206056739U (en) | 2016-08-16 | 2016-08-16 | Detection of gas flow rate metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206056739U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168658A (en) * | 2018-02-06 | 2018-06-15 | 温州鼎程电子科技有限公司 | A kind of calibration facility of automobile air-flow sensor |
| CN110220576A (en) * | 2019-07-25 | 2019-09-10 | 浙江裕顺仪表有限公司 | A kind of efficient gas flow standard device that can examine and determine more flowmeters simultaneously |
-
2016
- 2016-08-16 CN CN201620887542.XU patent/CN206056739U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168658A (en) * | 2018-02-06 | 2018-06-15 | 温州鼎程电子科技有限公司 | A kind of calibration facility of automobile air-flow sensor |
| CN110220576A (en) * | 2019-07-25 | 2019-09-10 | 浙江裕顺仪表有限公司 | A kind of efficient gas flow standard device that can examine and determine more flowmeters simultaneously |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20180816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |