CN104596747B - A kind of vacuum device for testing flow of air pipe head - Google Patents
A kind of vacuum device for testing flow of air pipe head Download PDFInfo
- Publication number
- CN104596747B CN104596747B CN201410825933.4A CN201410825933A CN104596747B CN 104596747 B CN104596747 B CN 104596747B CN 201410825933 A CN201410825933 A CN 201410825933A CN 104596747 B CN104596747 B CN 104596747B
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- pressure transmitter
- pressure
- pipe head
- display
- air pipe
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 13
- 238000009530 blood pressure measurement Methods 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000010998 test method Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
Of the invention and a kind of vacuum device for testing flow of air pipe head.Mainly solve existing method of testing and have that certainty of measurement is low, influence the technical problem of product quality.Including motor, frequency converter, blower fan, measurement pipeline, rectifier, Pitot tube, first pressure transmitter, first display, air pressure probe, second pressure transmitter and second display, motor is connected with blower fan, frequency converter is connected with motor, blower fan is connected with measurement pipeline, Pitot tube, air pressure probe is installed on measurement pipeline, first pressure transmitter is connected with Pitot tube, first display is connected with first pressure transmitter, second pressure transmitter is connected with air pressure probe, second display is connected with second pressure transmitter.The experimental rig uses unique, special design structure, can rationally, reliable and effectively test sample flow, equipment is advanced, test result high precision, and also adapts to the exemplar of different bores.
Description
Technical field
The present invention relates to a kind of test device of accessory peculiar to vessel, a kind of vacuum flow test dress of air pipe head is referred in particular to
Put.
Background technology
Air pipe head, is mainly used in main cabin gas exchange action, and the air pressure in tank is made close to atmospheric pressure by air-breathing and breathing,
Its pressure is maintained within the design pressure of tank, can prevent seawater, rainwater from entering tank in addition.At present, do not have one also
Plant reliable, effective method to test the vacuum flow of air pipe head, cause the vacuum flow rate test structure of air pipe head
Accuracy reduction, and the vacuum tube head of different bores can't be applicable.
The content of the invention
In order to overcome the shortcoming and weak point of background technology, it is accurate that the present invention provides a kind of reliable, effective and test
The vacuum device for testing flow of degree air pipe head high.
The technical scheme is that：A kind of vacuum device for testing flow of air pipe head, including motor, frequency converter, wind
Machine, measurement pipeline, rectifier, Pitot tube, first pressure transmitter, the first display, air pressure probe, second pressure become
Sending device and second display, the measurement pipeline includes the straight length, rectifier section and the vacuum pressure measurement section that are sequentially connected, institute
State motor to be connected with blower fan, the frequency converter is connected with motor, the blower fan is connected with straight length, the Pitot tube peace
Loaded on straight length, the first pressure transmitter is connected with Pitot tube, first display and first pressure transmitter
It is connected, in vacuum pressure measurement section, the second pressure transmitter is passed the air pressure probe with air pressure
Sensor is connected, and the second display is connected with second pressure transmitter, and air pipe head is positioned in vacuum pressure measurement section；Institute
State straight length and rectifier section and be arranged on ground, the vacuum pressure measurement section is vertically arranged, the vacuum pressure measurement section and rectifier section
Between set elbow.
The blower fan is centrifugal blower.
Gasotron is provided with the rectifier section, the gasotron is latticed.
The invention has the advantages that：The experimental rig use unique, special design structure, can rationally, can
By and effective test air pipe head flow, equipment is advanced, test result high precision, and also adapts to different bores
Air pipe head.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of gasotron in the present invention.
Fig. 3 is another angled arrangement schematic diagram of gasotron in the present invention.
Fig. 4 is the structural representation of reducer pipe in the present invention.
Fig. 5 is the structural representation of another reducer pipe in the present invention.
In figure, motor 1, frequency converter 2, blower fan 3, measurement pipeline 4, straight length 41, rectifier section 42, vacuum pressure measurement section 43,
Pitot tube 5, first pressure transmitter 6, the first display 7, air pressure probe 8, second pressure transmitter 9, the second display
Device 10, gasotron 11, reducer pipe 12, air pipe head 13, float 14.
Specific embodiment
It is described further below for embodiments of the invention：
As illustrated, a kind of vacuum device for testing flow of air pipe head, including motor 1, frequency converter 2, blower fan 3, measurement
Pipeline 4, Pitot tube 5, first pressure transmitter 6, the first display 7, air pressure probe 8, second pressure transmitter 9 and
Second display 10, the blower fan 3 is centrifugal blower, and the measurement pipeline 4 includes straight length 41, the rectifier section being sequentially connected
42 and vacuum pressure measurement section 43, the motor 1 is connected with blower fan 3, and the frequency converter 2 is connected with motor 1, the blower fan 3
It is connected with straight length 41, the Pitot tube 5 is installed on straight length 41, the first pressure transmitter 6 is connected with Pitot tube 5
Connect, first display 7 is connected with first pressure transmitter 6, the air pressure probe 8 is located at the vacuum pressure measurement
In section 43, the second pressure transmitter 9 is connected with air pressure probe 8, the second display 10 and second pressure
Transmitter 9 is connected, and air pipe head is positioned in vacuum pressure measurement section 43.Operation principle is as follows：During experiment, first air pipe head is put
In on flange connector, it is bolted on the port of vacuum pressure measurement section 43 of measurement pipeline 4 by flange, hand held console
Start to adjust frequency converter, the rotating speed of centrifugal blower is driven with regulation motor, frequency is bigger, the speed that centrifugal blower extracts air is got over
Hurry up, regulation is stopped when the float 14 of air pipe head 13 is sucked up, so as to draw peak frequency.Then down select successively
Ten Frequency points, are adjusted to each required Frequency point by frequency converter and stop regulation, then on the premise of the Frequency point,
Voltage is converted into by first pressure transmitter 6 to the air pressure measured in straight length 41 by Pitot tube 5 and is displayed in first
On display 7, and by air pressure probe 8 to the pressure that measures in vacuum pressure measurement section 43 by second pressure transmitter 9
It is converted into voltage to be displayed on second display 10, while Central Control Room pressure gauge measures atmospheric pressure, number is calculated by formula
Value, each Frequency point calculates numerical value by this way, to draw the vacuum flow of air pipe head under different operating modes.According to
Such scheme, the experimental rig uses unique, special design structure, rationally, reliably and effectively can test air hose
The flow of head, equipment is advanced, test result high precision, and also adapts to the air pipe head of different bores.In vacuum pressure measurement section 4
End reducer pipe 12 can be installed to be applicable the air pipe head of different bores.
In the present invention, gasotron 11 is provided with the rectifier section 42, the gasotron 11 is latticed.
By the steady flow result of gasotron 11 so that flow is more stablized, test accuracy is improved.Due to vacuum pressure measurement section and rectification
It is that the air-flow of rotation is changed into streamlined flow by curve transition, it is necessary to pass through gasotron between device section, then by straight tube
Section, improves the Stability and veracity of measurement.
Embodiment is not construed as the limitation to inventing, but any based on spiritual improvements introduced of the invention, all Ying Ben
Within the protection domain of invention.
Claims (4)
1. the vacuum device for testing flow of a kind of air pipe head, it is characterised in that：Including motor（1）, frequency converter（2）, blower fan
（3）, measurement pipeline（4）, Pitot tube（5）, first pressure transmitter（6）, the first display（7）, air pressure probe（8）、
Second pressure transmitter（9）And second display（10）, the measurement pipeline（4）Including the straight length being sequentially connected（41）、
Rectifier section（42）And vacuum pressure measurement section（43）, the motor（1）With blower fan（3）It is connected, the frequency converter（2）With motor
（1）It is connected, the blower fan（3）With straight length（41）It is connected, the Pitot tube（5）It is installed on straight length（41）On, it is described
First pressure transmitter（6）With Pitot tube（5）It is connected, first display（7）With first pressure transmitter（6）It is connected
Connect, the air pressure probe（8）Located at vacuum pressure measurement section（43）On, the second pressure transmitter（9）With air
Pressure sensor（8）It is connected, the second display（7）With second pressure transmitter（9）It is connected, air pipe head（13）Put
It is placed in vacuum pressure measurement section（43）On；
The straight length（41）With rectifier section（42）Installed in ground, the vacuum pressure measurement section（43）It is vertically arranged, it is described true
Empty pressure measurement section（43）With rectifier section（42）Between set elbow.
2. the vacuum device for testing flow of a kind of air pipe head according to claim 1, it is characterised in that：The blower fan
（3）It is centrifugal blower.
3. the vacuum device for testing flow of a kind of air pipe head according to claim 1 and 2, it is characterised in that：It is described whole
Stream device section（42）Inside it is provided with gasotron（11）, the gasotron（11）For latticed.
4. the vacuum device for testing flow of a kind of air pipe head according to claim 1 and 2, it is characterised in that：It is described true
Empty pressure measurement section（43）By reducer pipe（12）With air pipe head（13）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825933.4A CN104596747B (en) | 2014-12-26 | 2014-12-26 | A kind of vacuum device for testing flow of air pipe head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825933.4A CN104596747B (en) | 2014-12-26 | 2014-12-26 | A kind of vacuum device for testing flow of air pipe head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104596747A CN104596747A (en) | 2015-05-06 |
| CN104596747B true CN104596747B (en) | 2017-06-30 |
Family
ID=53122672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410825933.4A Expired - Fee Related CN104596747B (en) | 2014-12-26 | 2014-12-26 | A kind of vacuum device for testing flow of air pipe head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104596747B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843200B (en) * | 2016-05-26 | 2019-04-09 | 沈阳东大自动化有限公司 | A kind of industrial stokehold experimental provision based on Internet of Things |
| CN105807758B (en) * | 2016-05-26 | 2018-09-18 | 沈阳东大自动化有限公司 | A kind of the industrial stokehold experimental provision and method of multivariable |
| CN105843220B (en) * | 2016-05-26 | 2018-09-18 | 沈阳东大自动化有限公司 | The industrial stokehold experimental provision and method of non-minimum phase characteristic can be obtained |
| CN106337828B (en) * | 2016-08-31 | 2018-01-16 | 杭州老板电器股份有限公司 | Portable wind apparatus test device and method of testing |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2516944Y (en) * | 2001-12-25 | 2002-10-16 | 梁永 | Flow measuring device with Pitot tube |
| CN101995275B (en) * | 2010-10-26 | 2011-12-07 | 中国航天科技集团公司第五研究院第五一○研究所 | Static expansion method vacuum standard based method for measuring minimum gas flow |
| CN102582815A (en) * | 2011-01-13 | 2012-07-18 | 南通瑞达航海机械有限公司 | Automatic closing device of air pipe head |
| EP2628676B1 (en) * | 2012-02-17 | 2014-06-11 | John Gjerde AS | Air vent head |
| NL2010510C2 (en) * | 2013-03-22 | 2014-09-24 | Winteb Beheer B V | Air pipe head. |
| CN203275082U (en) * | 2013-05-31 | 2013-11-06 | 北京德尔福万源发动机管理系统有限公司 | Flow testing system |
| CN103439101B (en) * | 2013-08-29 | 2016-05-04 | 长城汽车股份有限公司 | Inlet manifold device for detecting performance and detection method |
| CN203785711U (en) * | 2013-12-31 | 2014-08-20 | 中山凯旋真空技术工程有限公司 | Gas pumping speed measuring device for vacuum-pumping system in vacuum equipment |
| CN104121958A (en) * | 2014-08-13 | 2014-10-29 | 株洲南车时代电气股份有限公司 | Improved air volume measuring device based on L-shaped pitot tube |
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2014
- 2014-12-26 CN CN201410825933.4A patent/CN104596747B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104596747A (en) | 2015-05-06 |
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Granted publication date: 20170630 |