CN106382973A - Air flow sensor calibration device - Google Patents
Air flow sensor calibration device Download PDFInfo
- Publication number
- CN106382973A CN106382973A CN201610772859.3A CN201610772859A CN106382973A CN 106382973 A CN106382973 A CN 106382973A CN 201610772859 A CN201610772859 A CN 201610772859A CN 106382973 A CN106382973 A CN 106382973A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- switch board
- temperature sensor
- air flow
- heater
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
Abstract
The invention discloses an air flow sensor calibration device. One end of a pipeline is connected with a plug through a connector; an airway is formed inside the plug, and an inductive chip is arranged in the airway; a throttle valve, a heater and a pressure-difference and temperature sensor are sequentially arranged on the pipeline from left to right; and the throttle valve, the heater, the pressure-difference and temperature sensor and the inductive chip are respectively connected with a control cabinet. The air flow sensor calibration device has the advantages of high accuracy and easy operation; the calculation accuracy of a flow totalizer can be improved due to the arrangement of a small pipe diameter; energy conservation and emission reduction can be realized since a large pipeline with a large flow is replaced by a small pipeline with a small flow; and temperature compensation calibration can be carried out.
Description
Technical field
The present invention relates to a kind of caliberating device, especially relate to a kind of air flow sensor caliberating device.
Background technology
Conventional gas flow sensor, when demarcating, mostly carrys out calculated flow rate using flow integrator；But stream
The operation principle of amount integrating instrument is come calculated flow rate using pressure differential method；If required flow is less and pipeline is larger, at this moment count
The error calculated can be very big；And the calibrating table of routine is more complicated, build high with maintenance cost.
Content of the invention
The invention solves the problems that task be provide a kind of air flow sensor caliberating device so that reach raising demarcate essence
Degree, reduces calculation error, can also carry out the purpose of temperature-compensating simultaneously.
In order to solve the above problems, the present invention is achieved by the following technical solutions：
A kind of air flow sensor caliberating device, including：Pipeline, choke valve, heater, pressure reduction and temperature sensor, joint,
Lock pin, induction chip, air flue, switch board, programmable logic controller (PLC), industrial computer, frequency converter, flow integrator, IC program are burnt
Write device；Wherein：One end of pipeline is connected with lock pin by joint；Described lock pin be internally provided with air flue, setting in air flue
There is induction chip；Choke valve, heater, pressure reduction and temperature sensor are disposed with from left to right on pipeline；Described throttling
Valve, heater, pressure reduction and temperature sensor, induction chip are connected with switch board respectively；It is provided with FPGA in switch board
Controller, industrial computer, frequency converter, flow integrator, IC program burn writing device.
A kind of air flow sensor caliberating device, wherein：The pipe diameter of pipeline is 6mm.
A kind of air flow sensor caliberating device, wherein：It is additionally provided with described switch board：Liquid nitrogen spray, temperature
Sensor；The side of switch board is provided with equally distributed evagination contact；Switch board is slidably connected with ground；Switch board passes through liquid
Pressure transmission device is connected with wall；Power pack is provided with wall；Equally distributed indent contact is provided with power pack；Described
Liquid nitrogen spray be connected with liquid nitrogen bottle；It is provided with thermo-electric generation sheet on the outer wall of described pipeline.
It is an advantage of the current invention that：High precision is it is easy to operate；Small pipeline setting can improve the calculating essence of flow integrator
Degree；Small pipeline low discharge replaces big pipeline big flow to realize energy-saving and emission-reduction；Temperature-compensating demarcation can be carried out simultaneously.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is that the inside of switch board of the present invention forms structural representation.
Fig. 3 is that the inside of lock pin of the present invention forms structural representation.
Fig. 4 is the external connection schematic diagram of switch board of the present invention.
Reference：Pipeline 1, choke valve 2, heater 3, pressure reduction and temperature sensor 4, joint 5, lock pin 6, induction chip 7, gas
Road 8, switch board 9, programmable logic controller (PLC) 10, industrial computer 11, frequency converter 12, flow integrator 13, IC program burn writing device 14,
Liquid nitrogen spray 15, temperature sensor 16, ground 17, hydraulic transmission 18, indent contact 19, power pack 20, wall 21, evagination
Contact 22.
Specific embodiment
Embodiment 1, a kind of air flow sensor caliberating device, including：Pipeline 1, choke valve 2, heater 3, pressure reduction and
Temperature sensor 4, joint 5, lock pin 6, induction chip 7, air flue 8, switch board 9, programmable logic controller (PLC) 10, industrial computer 11,
Frequency converter 12, flow integrator 13, IC program burn writing device 14；Wherein：One end of pipeline 1 is connected with lock pin 6 by joint 5；Institute
The lock pin 6 stated be internally provided with air flue 8, be provided with induction chip 7 in air flue 8；Section is disposed with from left to right on pipeline 1
Stream valve 2, heater 3, pressure reduction and temperature sensor 4；Described choke valve 2, heater 3, pressure reduction and temperature sensor 4, sensing
Chip 7 is connected with switch board 9 respectively；It is provided with programmable logic controller (PLC) 10, industrial computer 11, frequency converter 12, stream in switch board 9
Amount integrating instrument 13, IC program burn writing device 14.
Embodiment 2, a kind of air flow sensor caliberating device, wherein：The pipe diameter of pipeline 1 is 6mm.Remaining is with enforcement
Example 1.
Embodiment 3, a kind of air flow sensor caliberating device, wherein：It is additionally provided with described switch board 9：Liquid nitrogen
Shower nozzle 15, temperature sensor 16；The side of switch board 9 is provided with equally distributed evagination contact 22；Switch board 9 is sliding with ground 17
It is dynamically connected；Switch board 9 is connected with wall 21 by hydraulic transmission 18；Power pack 20 is provided with wall 21；Power pack 20
On be provided with equally distributed indent contact 19；Described liquid nitrogen spray 15 is connected with liquid nitrogen bottle；On the described outer wall of pipeline 1
It is provided with thermo-electric generation sheet.Remaining is with embodiment 1 or 2.
Operation principle：
Realize the coordination control of calibration system by the programmable logic controller (PLC) 10 of switch board 9 and the upper computer software of industrial computer 11
System；Adjust the size of throughput by choke valve 2；Control the temperature of gas by heater 3；By pressure reduction and temperature sensor
4 and flow integrator 13 calculate gas flow f in real time（x）, as the initial data of the demarcation of lock pin 6；Pass through prior preparation again
The good F that increased temperature-compensating（x）With f（x）Between relation g（x）And host computer reads output signal O of lock pin 6
（x）, extrapolate O（x）With F（x）Between relation G（x）, eventually through 14 G of IC program burn writing device（x）It is cured to lock pin 6
In chip, thus realizing the demarcation of flow sensor；Described switch board 9 passes through, and indent contact 19 is nested with evagination contact 22,
Switch board 9 switches on power；When temperature sensor 16 detects abnormal high temperature in switch board 9, liquid nitrogen spray 15 is to control
Injection liquid nitrogen in cabinet 9；Hydraulic transmission 18 promotes switch board 9 away from power pack 20 simultaneously；Indent contact 19 and evagination contact
22 separate；Switch board 9 deenergization；In addition the indent contact 19 arranging and evagination contact 22 are easy to switch board 9 and are switched on power.
Claims (3)
1. a kind of air flow sensor caliberating device, including：Pipeline, choke valve, heater, pressure reduction and temperature sensor, connect
Head, lock pin, induction chip, air flue, switch board, programmable logic controller (PLC), industrial computer, frequency converter, flow integrator, IC program
Fever writes；It is characterized in that：One end of pipeline is connected with lock pin by joint；Described lock pin be internally provided with air flue, gas
It is provided with induction chip in road；Choke valve, heater, pressure reduction and temperature sensor are disposed with from left to right on pipeline；Institute
Choke valve, heater, pressure reduction and temperature sensor, the induction chip stated are connected with switch board respectively；Being provided with switch board can
Programmed logic controller, industrial computer, frequency converter, flow integrator, IC program burn writing device.
2. a kind of air flow sensor caliberating device according to claim 1 it is characterised in that：The pipe diameter of pipeline is
6mm.
3. a kind of air flow sensor caliberating device according to claim 1 and 2 it is characterised in that：Described control
It is additionally provided with cabinet：Liquid nitrogen spray, temperature sensor；The side of switch board is provided with equally distributed evagination contact；Switch board
It is slidably connected with ground；Switch board is connected with wall by hydraulic transmission；Power pack is provided with wall；Set on power pack
It is equipped with equally distributed indent contact；Described liquid nitrogen spray is connected with liquid nitrogen bottle；It is provided with temperature on the outer wall of described pipeline
Difference generating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610772859.3A CN106382973A (en) | 2016-08-31 | 2016-08-31 | Air flow sensor calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610772859.3A CN106382973A (en) | 2016-08-31 | 2016-08-31 | Air flow sensor calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106382973A true CN106382973A (en) | 2017-02-08 |
Family
ID=57939676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610772859.3A Pending CN106382973A (en) | 2016-08-31 | 2016-08-31 | Air flow sensor calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106382973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947916A (en) * | 2020-07-30 | 2020-11-17 | 黄山双桦动林压缩机有限公司 | Variable displacement compressor flow sensor performance testing device and testing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054484A (en) * | 1990-02-27 | 1991-09-11 | 机械电子工业部重庆工业自动化仪表研究所 | Differential pressure type mass flowmeter for vortex street |
| CN102671334A (en) * | 2012-01-12 | 2012-09-19 | 河南科技大学 | Indoor fire-fighting system |
| JP5082832B2 (en) * | 2007-12-26 | 2012-11-28 | 日立金属株式会社 | Flow rate control device, flow rate control method, and flow rate control device verification method |
| CN102967350A (en) * | 2012-11-28 | 2013-03-13 | 柳青 | Calibration device and calibration method for automobile air mass flow meter |
| CN103175589A (en) * | 2011-12-26 | 2013-06-26 | 新奥科技发展有限公司 | Measuring meter calibration device and method |
| CN104034377A (en) * | 2014-06-17 | 2014-09-10 | 西安交通大学 | Air compressor flow measurement device and calibration system and method thereof |
| CN104325869A (en) * | 2014-11-05 | 2015-02-04 | 张义兵 | Unimpeded emergency escape bus |
| CN205327329U (en) * | 2015-12-29 | 2016-06-22 | 上海船舶研究设计院 | Fire safety takes precautions against and breaks away from mechanism with passenger boat hull |
-
2016
- 2016-08-31 CN CN201610772859.3A patent/CN106382973A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054484A (en) * | 1990-02-27 | 1991-09-11 | 机械电子工业部重庆工业自动化仪表研究所 | Differential pressure type mass flowmeter for vortex street |
| JP5082832B2 (en) * | 2007-12-26 | 2012-11-28 | 日立金属株式会社 | Flow rate control device, flow rate control method, and flow rate control device verification method |
| CN103175589A (en) * | 2011-12-26 | 2013-06-26 | 新奥科技发展有限公司 | Measuring meter calibration device and method |
| CN102671334A (en) * | 2012-01-12 | 2012-09-19 | 河南科技大学 | Indoor fire-fighting system |
| CN102967350A (en) * | 2012-11-28 | 2013-03-13 | 柳青 | Calibration device and calibration method for automobile air mass flow meter |
| CN104034377A (en) * | 2014-06-17 | 2014-09-10 | 西安交通大学 | Air compressor flow measurement device and calibration system and method thereof |
| CN104325869A (en) * | 2014-11-05 | 2015-02-04 | 张义兵 | Unimpeded emergency escape bus |
| CN205327329U (en) * | 2015-12-29 | 2016-06-22 | 上海船舶研究设计院 | Fire safety takes precautions against and breaks away from mechanism with passenger boat hull |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947916A (en) * | 2020-07-30 | 2020-11-17 | 黄山双桦动林压缩机有限公司 | Variable displacement compressor flow sensor performance testing device and testing method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170208 |
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| RJ01 | Rejection of invention patent application after publication |