CN209639805U - A kind of aerospace automatic calibration unit for gas flowmeters - Google Patents
A kind of aerospace automatic calibration unit for gas flowmeters Download PDFInfo
- Publication number
- CN209639805U CN209639805U CN201920287562.7U CN201920287562U CN209639805U CN 209639805 U CN209639805 U CN 209639805U CN 201920287562 U CN201920287562 U CN 201920287562U CN 209639805 U CN209639805 U CN 209639805U
- Authority
- CN
- China
- Prior art keywords
- control system
- gas
- collecting pipe
- solenoid valve
- gas source
- 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.)
- Active
Links
Abstract
It include comparison method verification system, gas source control system and computer control system the utility model discloses a kind of aerospace automatic calibration unit for gas flowmeters, comparison method verification system includes that sequentially connected air inlet pipe, isocon, the first collecting pipe, the second collecting pipe and escape pipe, gas source control system are connect with air inlet pipe；It has been arranged in parallel multiple groups standard test pipeline between isocon and the first collecting pipe, multiple groups have been arranged in parallel between the first collecting pipe and the second collecting pipe and have been accredited pipeline.The utility model uses same basic platform, can complete the calibrating of flow, pressure, temperature parameter；Using conventional parts, practicability is good, and manufacturing cost is low, and cost performance is high, structurally reasonable, highly-safe；Guarantee that the gas of the pipeline of each arranged in groups is consistent, can automatically continuously examine and determine, and guarantees to examine and determine the accuracy of data.
Description
Technical field
The utility model belongs to aerospace engine certificate test technical field, more particularly to a kind of based on standard vortex street
The aerospace automatic calibration unit for gas flowmeters of flow sensor combination comparison method.
Background technique
Currently, the accurate metering of gas flow is increasingly taken seriously, Calibrating Gas Flow Meter in aerospace field
Standard set-up wide variety.There are PVTt method, standard volume tube method, bell jar process, sonic nozzle method etc. using more universal.Wherein
PVTt method and standard volume tube method are usually only arranged in flow instrument research institution and metrological service, for verifying other standards stream
Meter.Bell jar process is primarily adapted for use in small flow, the gas instrument calibrating of low differential pressure and small diameter tube due to finite volume.Velocity of sound spray
Structure is complicated for mouth method, is of little use.And vortex-shedding meter has structure simple, it is internal big without movable member long service life range ratio
The advantages that reproducible crushing small corrosion-and high-temp-resistant.Currently, the standard degree of the gas vortex street sensor in China is generally at 0.5 grade
In~1 grade of level, from the level of accuracy, it can not be used as 0.5 grade standard sensor, but the model of this kind of instrument
Degree of enclosing is very wide, and generally all in 10:1~15:1 or so, and repeatability is good, even higher within 0.2%.
Therefore the utility model devises a kind of gas flowmeter based on standard vortex flow sensors combination comparison method
Automatic calibrator, since its structure is simply at low cost, many medium-small flow instrument manufacturing enterprise all can be used ties as metering
The measuring instrument of calculation, the reinspection expense for needing periodically to recheck a large amount of instrument are also a very big spending.
Utility model content
The purpose of this utility model is to provide it is a kind of it is reasonable in design, can in groups using, automatic Verification calculate by
The aerospace automatic calibration unit for gas flowmeters of the parameters such as flow, the temperature and pressure value of Calibrating Gas Flow Meter and its
Calibration method.
To achieve the above object, the utility model provides the following technical solutions: a kind of aerospace gas flowmeter from
Dynamic calibrating installation includes comparison method verification system, gas source control system and computer control system；The comparison method verification system
Including sequentially connected air inlet pipe, isocon, the first collecting pipe, the second collecting pipe and escape pipe, the gas source control system with
Air inlet pipe connection；Multiple groups standard test pipeline, the standard test have been arranged in parallel between the isocon and the first collecting pipe
The first solenoid valve, standard vortex flow sensors, the first thermometer, first pressure gauge and second have been sequentially arranged on pipeline
Solenoid valve；It has been arranged in parallel multiple groups between first collecting pipe and the second collecting pipe and has been accredited pipeline, it is described accredited
Third solenoid valve, tested gas flowmeter, second temperature meter, second pressure gauge and the 4th electromagnetism have been sequentially arranged on pipeline
Regulating valve；The computer control system respectively with gas source control system, the first solenoid valve, standard vortex-street flow sensing
Device, the first thermometer, first pressure gauge, the second solenoid valve, third solenoid valve, tested gas flowmeter, the second temperature
Degree meter, second pressure gauge and the 4th solenoid valve are electrically connected.
Preferably, the gas source control system includes Roots blower air supply system and frequency converter regulating system.
Preferably, the computer control system includes computer hardware, underlying Operating System, system controlling software.
Preferably, it is controlled between the computer control system and comparison method verification system, gas source control system with data
Line connection；It is connected between the comparison method verification system and gas source control system with fuel oil conduit.
Compared with prior art, the utility model has the beneficial effects that
First is that the calibrating of the parameters such as flow, pressure, temperature can be completed using same basic platform；
Second is that practicability is good, and manufacturing cost is low using conventional parts, cost performance is high, structurally reasonable, highly-safe；
Third is that standard test pipeline and accredited pipeline are used using arranged in groups mode, D can be measuredN=5-500mm
Gas flowmeter calibrating；
Fourth is that using the same isocon, the same collecting pipe guarantees that the gas of the pipeline of each arranged in groups keeps one
It causes, can automatically continuously examine and determine, and guarantee to examine and determine the accuracy of data.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a preferred embodiment of the utility model；
Fig. 2 is the operating structure schematic diagram of embodiment illustrated in fig. 1.
In figure: 1, comparison method verification system；2, gas source control system；3, computer control system；4, air inlet pipe；5, it shunts
Pipe；6, the first collecting pipe；7, the second collecting pipe；8, escape pipe；9-1, the first solenoid valve；9-2, the second solenoid valve；
9-3, third solenoid valve；9-4, the 4th solenoid valve；10, standard vortex flow sensors；11-1, the first thermometer；
11-2, second temperature meter；12-1, first pressure gauge；12-2, second pressure gauge；13, it is detected gas flowmeter；14, frequency converter tune
Section system；15, Roots blower air supply system.
Specific embodiment
The preferred embodiment that the utility model is described below in conjunction with attached drawing, to one preferred embodiment of the utility model
In technical solution be clearly and completely described.
- Fig. 2 referring to Figure 1, the utility model include comparison method verification system 1, gas source control system 2 and computer control
System 3.
The comparison method verification system 1 includes sequentially connected air inlet pipe 4, isocon 5, the first collecting pipe 6, second confluence
Pipe 7 and escape pipe 8, the gas source control system 2 are connect with air inlet pipe 1；It is in parallel between the isocon 5 and the first collecting pipe 6
It is provided with multiple groups standard test pipeline, the first solenoid valve 9-1, standard vortex street have been sequentially arranged on the standard test pipeline
Flow sensor 10, the first thermometer 11-1, first pressure gauge 12-1 and the second solenoid valve 9-2；First collecting pipe 6
It has been arranged in parallel multiple groups between the second collecting pipe 7 and has been accredited pipeline, has been sequentially arranged third electromagnetism on the accredited pipeline
Regulating valve 9-3, tested gas flowmeter 13, second temperature meter 11-2, second pressure gauge 12-2 and the 4th solenoid valve 9-4.
The computer control system 3 respectively with gas source control system 2, the first solenoid valve 9-1, standard flux of vortex street
Sensor 10, the first thermometer 11-1, first pressure gauge 12-1, the second solenoid valve 9-2, third solenoid valve 9-3, quilt
Gas flowmeter 13, second temperature meter 11-2, second pressure gauge 12-2 and the 4th solenoid valve 9-4 is examined to be electrically connected.
In the present embodiment, the gas source control system 2 includes Roots blower air supply system 15 and frequency converter regulating system
14。
In the present embodiment, the computer control system 3 is soft including computer hardware, underlying Operating System, system control
Part.
In the present embodiment, number is used between the computer control system 3 and comparison method verification system 1, gas source control system 2
It is connected according to control line；It is connected between the comparison method verification system 1 and gas source control system 2 with fuel oil conduit.
Using the calibration method of above-mentioned aerospace automatic calibration unit for gas flowmeters, include the following steps,
A, start computer control system 3, accredited gas flowmeter is installed at tested gas flowmeter 13 simultaneously
It is ready；
B, start Roots blower air supply system 15 and frequency converter regulating system 14 is ready, guarantee that gas source is supplied to air inlet pipe
4；
C, after gas enters isocon 5 from air inlet pipe 4, it is diverted to each group standard test pipeline, is converged in the first collecting pipe 6
It closes, to guarantee that the pressure of each group gas source is consistent, then is diverted to accredited system, to examine and determine out tested gas flowmeter 13
Flow, temperature and pressure value confirm the qualified or not of gas flowmeter；After wherein gas is from air inlet pipe 4 into isocon 5,
Pass sequentially through the first solenoid valve 9-1, standard vortex flow sensors 10, the first thermometer 11-1, first pressure gauge 12-1,
Second solenoid valve 9-2 enters the first collecting pipe 6, then successively passes through third solenoid valve 9-3, is detected gas flowmeter
13, second temperature meter 11-2, second pressure gauge 12-2, the 4th solenoid valve 9-4 pass through escape pipe after entering the second collecting pipe 7
8 discharges；
D, by the first solenoid valve 9-1 in comparison method verification system 1, standard vortex flow sensors 10, the first temperature
Degree meter 11-1, first pressure gauge 12-1, the second solenoid valve 9-2, third solenoid valve 9-3, are detected gas flowmeter 13,
Second temperature meter 11-2, second pressure gauge 12-2, the data of the 4th solenoid valve 9-4 collect in computer control system 3,
By software systems, automatic Verification calculates the flow of accredited gas flowmeter, temperature and pressure value to confirm gas flow
That counts is qualified or not.
The utility model uses same basic platform, can complete the calibrating of flow, pressure, temperature parameter；Using zero conventional
Part, practicability is good, and manufacturing cost is low, and cost performance is high, structurally reasonable, highly-safe；Standard test pipeline and accredited pipeline are adopted
It is used with arranged in groups mode, D can be measuredNThe calibrating of the gas flowmeter of=5-500mm；Using the same isocon, together
One collecting pipe guarantees that the gas of the pipeline of each arranged in groups is consistent, can automatically continuously examine and determine, and guarantees to examine and determine number
According to accuracy.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of aerospace automatic calibration unit for gas flowmeters, it is characterised in that: including comparison method verification system (1),
Gas source control system (2) and computer control system (3)；
The comparison method verification system (1) includes sequentially connected air inlet pipe (4), isocon (5), the first collecting pipe (6), second
Collecting pipe (7) and escape pipe (8), the gas source control system (2) connect with air inlet pipe (4)；The isocon (5) is converged with first
It has been arranged in parallel multiple groups standard test pipeline between flow tube (6), the first electromagnetism tune has been sequentially arranged on the standard test pipeline
Save valve (9-1), standard vortex flow sensors (10), the first thermometer (11-1), first pressure gauge (12-1) and the second electromagnetism
Regulating valve (9-2)；It has been arranged in parallel multiple groups between first collecting pipe (6) and the second collecting pipe (7) and has been accredited pipeline, it is described
Third solenoid valve (9-3), tested gas flowmeter (13), second temperature meter (11- have been sequentially arranged on accredited pipeline
2), second pressure gauge (12-2) and the 4th solenoid valve (9-4)；The computer control system (3) controls with gas source respectively
System (2), the first solenoid valve (9-1), standard vortex flow sensors (10), the first thermometer (11-1), first pressure
Table (12-1), the second solenoid valve (9-2), third solenoid valve (9-3), tested gas flowmeter (13), second temperature
(11-2), second pressure gauge (12-2) and the 4th solenoid valve (9-4) is counted to be electrically connected.
2. aerospace automatic calibration unit for gas flowmeters according to claim 1, it is characterised in that: the gas source
Control system (2) includes Roots blower air supply system (15) and frequency converter regulating system (14).
3. aerospace automatic calibration unit for gas flowmeters according to claim 1, it is characterised in that: the calculating
Machine control system (3) includes computer hardware, underlying Operating System and system controlling software.
4. aerospace automatic calibration unit for gas flowmeters according to claim 1, it is characterised in that: the calculating
It is connect between machine control system (3) and comparison method verification system (1), gas source control system (2) with data control line；The comparison
It is connect between method verification system (1) and gas source control system (2) with fuel oil conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287562.7U CN209639805U (en) | 2019-03-06 | 2019-03-06 | A kind of aerospace automatic calibration unit for gas flowmeters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287562.7U CN209639805U (en) | 2019-03-06 | 2019-03-06 | A kind of aerospace automatic calibration unit for gas flowmeters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209639805U true CN209639805U (en) | 2019-11-15 |
Family
ID=68495453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920287562.7U Active CN209639805U (en) | 2019-03-06 | 2019-03-06 | A kind of aerospace automatic calibration unit for gas flowmeters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209639805U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696228A (en) * | 2019-03-06 | 2019-04-30 | 成立航空技术有限公司 | A kind of aerospace automatic calibration unit for gas flowmeters and its calibration method |
| CN113776628A (en) * | 2021-08-13 | 2021-12-10 | 青岛科技大学 | High-low pressure and temperature adjustable laminar flow meter testing device |
-
2019
- 2019-03-06 CN CN201920287562.7U patent/CN209639805U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696228A (en) * | 2019-03-06 | 2019-04-30 | 成立航空技术有限公司 | A kind of aerospace automatic calibration unit for gas flowmeters and its calibration method |
| CN113776628A (en) * | 2021-08-13 | 2021-12-10 | 青岛科技大学 | High-low pressure and temperature adjustable laminar flow meter testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204085645U (en) | With the gas flow standard device of self calibration structure | |
| WO2019000259A1 (en) | Detection device and method for circulating type gas turbine flowmeter | |
| CN201225920Y (en) | Gas flow standard device combining acoustic speed nozzle method and standard table method | |
| CN201476821U (en) | Double-channel pore plate gas flow rate measuring device with bypass bridge path | |
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| WO2010006474A1 (en) | A composite gas fluid flow measuring method and its device | |
| CN103759793A (en) | Calibration device and method for gas flow meter | |
| CN209639805U (en) | A kind of aerospace automatic calibration unit for gas flowmeters | |
| US20140208755A1 (en) | Gas Turbine Air Mass Flow Measuring System and Methods for Measuring Air Mass Flow in a Gas Turbine Inlet Duct | |
| CN103837215B (en) | Commutation valve type p.V.T.t method gas flow meter | |
| CN107677317A (en) | Flue dust gas sampling comprehensive detection system | |
| CN105973351A (en) | Supersonic gas-liquid separator test and experiment system | |
| CN207717129U (en) | A kind of flue dust gas sampling comprehensive detection system | |
| CN115524134A (en) | Air entraining amount testing structure and method for aircraft engine anti-icing system | |
| CN204330091U (en) | Bell jar type gas flowmeter calibrating installation | |
| CN202501910U (en) | Calibrating device for heavy caliber gas flow | |
| CN203672461U (en) | Calibrating device of gas flowmeter | |
| CN201476822U (en) | Dual-channel pore plate gas flow measuring device with multiple built-in parameters | |
| CN109696228A (en) | A kind of aerospace automatic calibration unit for gas flowmeters and its calibration method | |
| JP5815841B2 (en) | Fuel flow measurement device and calibration device thereof | |
| JP2007024730A (en) | Apparatus and method for sampling diluted exhaust gas using laminar exhaust gas flowmeter and heating/cooling surge tube apparatus | |
| CN108168638A (en) | A kind of gasoline engine oil consumption measuring method | |
| CN210426717U (en) | Sound velocity nozzle calibrating device | |
| CN103900665A (en) | Container combination and reversing valve type pVTt-method gas flow device | |
| CN215338512U (en) | Calibrating device for orifice flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 2-103, Warner Jinghu Garden, Dongli District, Tianjin Patentee after: Establishment of Aviation Co., Ltd Address before: Room 2-103, Warner Jinghu Garden, Dongli District, Tianjin Patentee before: CHENGLI AVIATION TECHNOLOGY Co.,Ltd. |