CN103557900B - Multi-channel small-flow precise measurement apparatus - Google Patents
Multi-channel small-flow precise measurement apparatus Download PDFInfo
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- CN103557900B CN103557900B CN201310544683.2A CN201310544683A CN103557900B CN 103557900 B CN103557900 B CN 103557900B CN 201310544683 A CN201310544683 A CN 201310544683A CN 103557900 B CN103557900 B CN 103557900B
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- tapping
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- tapping valve
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Abstract
The present invention relates to a kind of multi-channel small-flow precise measurement apparatus, including measurement measuring cup and tapping cylinder, bleeder valve liftout attachment is provided with above tapping cylinder, sensor pallet is provided with above bleeder valve liftout attachment, one end of the up positive stop of sensor and weighing sensor is connected above sensor pallet both sides respectively, the up positive stop other end connection weighing sensor of sensor, the tapping valve body of weighing sensor other end connection measurement measuring cup bottom, tapping valve element is provided with tapping valve body, the knock-pin corresponding with tapping valve body is provided with above the both ends of bleeder valve liftout attachment.The present invention have the advantages that precision high, installation, dismantle, using and it is easy to maintenance, suitable for popularization and application.
Description
Technical field
The invention belongs to measurement apparatus field, is related to a kind of Small flowrate measurement device, small more particularly to a kind of multichannel
Flow device for accurately measuring, the fluid flow of multiple passages accurately can be measured simultaneously.
Background technology
Whether at home or abroad, the measurement of convection body volume flow or mass flow is always one continuous
The technical field of research and development, the up to the present measurement to big flow and tiny flow quantity is always a skill urgently to be resolved hurrily
Art problem, particularly when the flow of detected fluid it is small to a certain extent after, be practically impossible to accurate measurement with traditional method,
Moreover in some particular applications need that the tiny flow quantity of multiple passages is carried out while measured, for example, being directed to aircraft engine
The measurement of the injection flow of each nozzle is, it is necessary to logical to up to more than ten under different manifold entrance pressure in machine fuel manifold
The flow in road is accurately measured simultaneously, and when manifold entrance pressure is relatively low, the injection flow very little of each nozzle, use are existing
The flowmeter of form of ownership can not nearly all meet range and required precision, moreover, more than ten individual flowmeter of installation needs larger
Installing space, it is difficult to realize in mechanical structure sometimes.
Existing flowmeter also has some defects, is exactly that flowmeter is past in addition to range is limited to the measurement of low discharge
There is harsher requirement toward range of viscosities and physical characteristic to detected fluid, for example, some flowmeters can only measure certain glue
The fluid flow of scope is spent, when some characteristics of detected fluid（Such as corrosivity）It is forced to select special flow when changing
Meter, even need special processing and manufacturing sometimes.
The content of the invention
Goal of the invention
, can be to the liquid of multiple passages it is an object of the invention to provide a kind of multi-channel small-flow precise measurement apparatus
Low discharge is accurately measured simultaneously, is solve thed problems, such as above-mentioned.
Technical scheme
The present invention is implemented by the following technical programs：
A kind of multi-channel small-flow precise measurement apparatus, it is made up of Weighing mechanism and Jie Ye tapping mechanism, it is characterised in that：
Weighing mechanism includes measurement measuring cup, the up positive stop of sensor, weighing sensor, tapping valve body and sensor pallet；Claim
Retransmit sensor to be distributed on sensor pallet both sides, and be rigidly connected with sensor pallet；Tapping valve body and weighing sensor
It is rigidly connected, measurement measuring cup is fixed on above tapping valve body；The up positive stop one end of sensor and sensor pallet rigidity
Connection, the other end are rigidly connected with weighing sensor；Jie Ye tapping mechanism includes tapping valve element, bleeder valve liftout attachment, movement
Lead, tapping cylinder, cylinder moving speed governing joint, knock-pin and valve element retracting spring；Tapping valve element is arranged on bleeder valve valve
In vivo, bleeder valve liftout attachment both ends top is rigidly connected with knock-pin, and knock-pin is coaxially correspondingly arranged with tapping valve element, is being put
The both sides of liquid valve liftout attachment bottom are respectively equipped with mobile guide post, are provided with tapping cylinder below bleeder valve liftout attachment, put
Cylinder moving speed governing joint is also associated with outside liquid cylinder.
Bleeder valve valve inner axial centre position is provided with the tapping valve element that can be moved up and down vertically, tapping valve element top
Valve element retracting spring is provided with outside the pipeline connected with measurement measuring cup；Pipeline and the top of tapping valve body are stretched out in tapping valve element bottom
Rod is corresponding.
Measurement measuring cup is fixed with tapping valve body by screw.
Cylinder moving speed governing joint is arranged to two up and down.
Advantage and effect
This multi-channel small-flow precise measurement apparatus of the present invention have high precision, installation, dismounting, using and it is easy to maintenance
The advantages of：
（1）The measurable flow for being less than 20 ls/h of the present invention, minimum flow is almost unrestricted, if the time is enough
It is long, in theory it is measurable close to zero flow.
（2）The present invention is easily achieved high-acruracy survey, and its measurement accuracy is exactly the precision of weighing sensor, can be easily reached
More than 0.5%.
（3）The present invention do not required the viscosity of fluid to be measured, as long as flowable liquid can be by theoretically
Measurement.
（4）The present invention can realize the measurement to heterogeneity liquid easily, as long as the material for changing measuring cup is suitable for not
Same measured medium.
（5）Other methods for realizing multi-channel measurement using multiple magnetic valve tapping, because magnetic valve can not possibly be definitely same
When act so that measurement accuracy is affected；And the present invention is discharged liquid using the bleeder valve of particular design from measuring cup（Clearly
It is empty）, and the bleeder valve of multiple passages can be achieved in the presence of the bleeder valve liftout attachment of lower end absolute " opening simultaneously " and
" closing simultaneously ", it can so ensure the absolute accurate control to time of measuring, so as to ensure the accurate measurement of flow.
（6）The present invention can simultaneously Measurement channel number up to more than 10.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Description of reference numerals：
1. measure measuring cup；2. the up positive stop of sensor；3. weighing sensor；4. tapping valve element；5. bleeder valve ejects
Device；6. mobile guide post；7. tapping cylinder；8. cylinder moving speed governing joint；9. knock-pin；10. tapping valve body；11. valve
Core retracting spring；12. sensor pallet.
Embodiment
The present invention is specifically described below in conjunction with the accompanying drawings：
The present invention provides a kind of multi-channel small-flow precise measurement apparatus, as shown in fig. 1：By Weighing mechanism and connect liquid and put
Liquid mechanism is formed, and Weighing mechanism includes measurement measuring cup 1, the up positive stop 2 of sensor, weighing sensor 3, tapping valve body 10
With sensor pallet 12；Weighing sensor 3 is evenly distributed on the both sides of sensor pallet 12, and is connected with the rigidity of sensor pallet 12
Connect；Tapping valve body 10 is rigidly connected with weighing sensor 3, and measurement measuring cup 1 is fixed on the top of tapping valve body 10；On sensor
The one end of row positive stop 2 is rigidly connected with sensor pallet 12, and the other end is rigidly connected with weighing sensor 3；Connect liquid cassette player
Structure includes tapping valve element 4, bleeder valve liftout attachment 5, mobile guide post 6, tapping cylinder 7, cylinder moving speed governing joint 8, ejection
Bar 9 and valve element retracting spring 11；Tapping valve element 4 is arranged in tapping valve body 10, the both ends top of bleeder valve liftout attachment 5 and top
Rod 9 is rigidly connected, and knock-pin 9 is coaxially correspondingly arranged with tapping valve element 4, is distinguished in the both sides of the bottom of bleeder valve liftout attachment 5
Provided with mobile guide post 6, the lower section of bleeder valve liftout attachment 5 is provided with tapping cylinder 7, and cylinder is also associated with outside tapping cylinder 7
Move speed governing joint 8.
The bottom of measuring cup 1 connection tapping valve body 10 is measured, the axial center position in the inside of tapping valve body 10 is provided with can edge
The tapping valve element 4 axially moved up and down, the pipeline outside that the top of tapping valve element 4 connects with measurement measuring cup 1 are provided with valve element backhaul bullet
Spring 11；The pipeline that tapping valve body is stretched out in the bottom of tapping valve element 4 is corresponding with knock-pin 9.
Measurement measuring cup 1 is fixed with tapping valve body 10 by screw.
Cylinder moving speed governing joint 8 is also associated with outside tapping cylinder 7.
Cylinder moving speed governing joint 8 is arranged to two up and down.
Operation principle of the present invention is as follows：
The Weighing mechanism of the present invention includes：The up positive stop 2 of sensor, weighing sensor 3, sensor pallet 12.
Weighing mechanism implementation process is as follows：
Weighing sensor 3 is distributed on sensor pallet, and is rigidly connected with sensor pallet 12；Tapping valve body 10 with
Weighing sensor 3 is rigidly connected, and measures the weight of liquid in measuring cup and can act on weighing sensor, so as to reach what is weighed
Purpose；The up positive stop 2 of sensor is rigidly connected with sensor pallet 12, becomes from mechanical angle limiting sensor is reversely maximum
Shape amount, reverse excessive deformation occurs when avoiding sensor by reverse heavy load, causes sensor degradation.
The present invention connect liquid, tapping mechanism includes：Measurement measuring cup 1, tapping valve element 4, bleeder valve liftout attachment 5, movement are led
To post 6, tapping cylinder 7, cylinder moving speed governing joint 8, knock-pin 9, tapping valve body 10, valve element retracting spring 11.
It is as follows to connect liquid, tapping mechanism implementation process：
Bleeder valve ejection disk 5 is rigidly connected with knock-pin 9, and knock-pin 9 corresponds coaxial with tapping valve core 4；Measurement
Measuring cup is fixed with tapping valve body 10 by screw.Tapping cylinder 7, which moves downward, makes knock-pin 9 depart from tapping valve element 4, tapping
Valve element 4 moves downward in the presence of valve element retracting spring 11, valve element bottom is in close contact with tapping valve body 10, makes whole
Measuring cup turns into the closed container in a lower end, and realization connects liquid；When tapping cylinder 7 moves upwards, drive knock-pin 9 promotes bleeder valve
Core 4 moves upwards, the bottom of tapping valve element 4 is departed from the bottom of tapping valve body 10 and is produced space, liquid is in gravity in measuring cup
In the presence of, measuring cup is flowed out by the space of tapping valve element 4 and tapping valve body 10, reaches tapping purpose.
Mobile guide post 6 plays motion guide effect.Upper and lower two cylinder moving speed governing joint 8 is up for adjusting cylinder
With descending speed.
The present invention is multi-channel small-flow precise measurement apparatus by docking liquid, tapping and the ingehious design of Weighing mechanism
Provide hardware foundation.
The course of work of the present invention is as follows：
Tapping valve element 4 is closed during test, and fluid to be measured injects measurement measuring cup 1 within a certain period of time, by claiming
Retransmit sensor 3 to measure the liquid quality of injection measuring cup 1 in the time and ensure measuring accuracy, be converted into after liquid volume divided by be somebody's turn to do
Time value can obtain tested channel liquid flow value.It is completed rear tapping cylinder 7 to act upwards, promotes bleeder valve ejection dress
Put 5 and drive knock-pin 9 to move upwards, open tapping valve element 4, the speed of service up and down of tapping cylinder 7 can lead to
Cylinder moving speed governing joint 8 is crossed to be adjusted；By the downward actuation of tapping cylinder 7 after liquid in measuring cup is put only, bleeder valve is driven
Liftout attachment 5 and knock-pin 9 move downward playback, close tapping valve element 4, you can carry out measuring or terminating measurement next time.
Claims (4)
1. a kind of multi-channel small-flow precise measurement apparatus, it is made up of Weighing mechanism and Jie Ye tapping mechanism, it is characterised in that：Claim
Heavy-duty machine structure includes measurement measuring cup（1）, the up positive stop of sensor（2）, weighing sensor（3）, tapping valve body（10）And biography
Sensor pallet（12）；Weighing sensor（3）It is distributed on sensor pallet（12）On both sides, and with sensor pallet（12）Rigidity connects
Connect；Tapping valve body（10）With weighing sensor（3）It is rigidly connected, measures measuring cup（1）It is fixed on tapping valve body（10）Top；
The up positive stop of sensor（2）One end and sensor pallet（12）It is rigidly connected, the other end and weighing sensor（3）Rigidity connects
Connect；Jie Ye tapping mechanism includes tapping valve element（4）, bleeder valve liftout attachment（5）, mobile guide post（6）, tapping cylinder（7）, gas
Cylinder moves speed governing joint（8）, knock-pin（9）With valve element retracting spring（11）；Tapping valve element（4）It is arranged on tapping valve body（10）
It is interior, bleeder valve liftout attachment（5）Both ends top and knock-pin（9）It is rigidly connected, knock-pin（9）With tapping valve element（4）It is coaxial right
It should set, in bleeder valve liftout attachment（5）The both sides of bottom are respectively equipped with mobile guide post（6）, bleeder valve liftout attachment（5）Under
Side is provided with tapping cylinder（7）, tapping cylinder（7）Outside is also associated with cylinder moving speed governing joint（8）.
2. multi-channel small-flow precise measurement apparatus according to claim 1, it is characterised in that：Tapping valve body（10）It is interior
Portion axial centre position is provided with the tapping valve element that can be moved up and down vertically（4）, tapping valve element（4）Top and measurement measuring cup（1）
Valve element retracting spring is provided with outside the pipeline of connection（11）；Tapping valve element（4）Pipeline and the ejection of tapping valve body are stretched out in bottom
Bar（9）It is corresponding.
3. multi-channel small-flow precise measurement apparatus according to claim 1 or 2, it is characterised in that：Measure measuring cup（1）With
Tapping valve body（10）Fixed by screw.
4. multi-channel small-flow precise measurement apparatus according to claim 1, it is characterised in that：Cylinder moving speed governing joint
（8）It is arranged to two up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310544683.2A CN103557900B (en) | 2013-11-06 | 2013-11-06 | Multi-channel small-flow precise measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310544683.2A CN103557900B (en) | 2013-11-06 | 2013-11-06 | Multi-channel small-flow precise measurement apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103557900A CN103557900A (en) | 2014-02-05 |
| CN103557900B true CN103557900B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310544683.2A Expired - Fee Related CN103557900B (en) | 2013-11-06 | 2013-11-06 | Multi-channel small-flow precise measurement apparatus |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295886A (en) * | 2019-08-05 | 2019-10-01 | 辽宁瑞邦石油技术发展有限公司 | A kind of oil well electromagnetism weighing intelligent gauge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999682Y (en) * | 2007-01-05 | 2008-01-02 | 阴山 | Device for testing amount of fuel delivered of oil jetting pump |
| CN202266356U (en) * | 2011-10-13 | 2012-06-06 | 王博 | Microcomputer high-precision gauging digital-display oil injection pump test bed |
| CN102680057A (en) * | 2012-05-17 | 2012-09-19 | 上海市计量测试技术研究院 | Piston type gas-liquid dual-purpose micro-flow standard device |
| CN202789271U (en) * | 2012-09-11 | 2013-03-13 | 王博 | Full-computer high-precision fuel injection pump test-bed |
| CN202883199U (en) * | 2012-09-18 | 2013-04-17 | 广东省技术开发中心 | Oil sprayer detecting device |
-
2013
- 2013-11-06 CN CN201310544683.2A patent/CN103557900B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999682Y (en) * | 2007-01-05 | 2008-01-02 | 阴山 | Device for testing amount of fuel delivered of oil jetting pump |
| CN202266356U (en) * | 2011-10-13 | 2012-06-06 | 王博 | Microcomputer high-precision gauging digital-display oil injection pump test bed |
| CN102680057A (en) * | 2012-05-17 | 2012-09-19 | 上海市计量测试技术研究院 | Piston type gas-liquid dual-purpose micro-flow standard device |
| CN202789271U (en) * | 2012-09-11 | 2013-03-13 | 王博 | Full-computer high-precision fuel injection pump test-bed |
| CN202883199U (en) * | 2012-09-18 | 2013-04-17 | 广东省技术开发中心 | Oil sprayer detecting device |
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| CN103557900A (en) | 2014-02-05 |
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