CN106768099A - A kind of adjustable gas flowmeter of resolution ratio - Google Patents
A kind of adjustable gas flowmeter of resolution ratio Download PDFInfo
- Publication number
- CN106768099A CN106768099A CN201710108641.2A CN201710108641A CN106768099A CN 106768099 A CN106768099 A CN 106768099A CN 201710108641 A CN201710108641 A CN 201710108641A CN 106768099 A CN106768099 A CN 106768099A
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- tube body
- resolution ratio
- bubble
- microcomputer
- air inlet
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- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims description 60
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000013500 data storage Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 208000003265 stomatitis Diseases 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/52—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring the height of the fluid level due to the lifting power of the fluid flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/661—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters using light
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a kind of adjustable gas flowmeter of resolution ratio, including electromagnetic valve body, U-tube body and microcomputer, equipped with the solution of insoluble under test gas in the U-tube body, the electromagnetic valve body is provided with magnetic valve air inlet, electromagnetism valve air gate and solenoid valve vents mouthful, the electromagnetism valve air gate is connected by conduit with U-tube body air inlet, level detection mechanism is provided with the wall of the U-tube body air inlet side, the level detection mechanism is located at solution initial level lower section in U-tube body, bubble metrological service is provided with the wall of the U-tube body gas outlet side, the U-tube body bottom inner portion is provided with bubble and produces mouth, the electromagnetic valve body, level detection mechanism and bubble meter are electrically connected with microcomputer.The gas flowmeter certainty of measurement is high, and resolution ratio and range are adjustable, is measured by microcomputer automatic control and data storage, can be continuously long-running.
Description
Technical field
The invention belongs to gas measurement technique field, and in particular to a kind of adjustable gas flowmeter of resolution ratio, fit
Volume and flow velocity for measuring all kinds of minimum gas.
Background technology
Currently, many important scientific researches, production action need measure the volume of gas especially minimum gas.
However, the volume of gas is for liquid, influenceed bigger by temperature and pressure, and be more difficult to accurate measurement.At present
Some gas flowmeters, measurement range is universal higher, and resolution ratio is relatively low, is not particularly suited for the measurement of minimum gas volume.It is a small number of
Several moneys can measure the flowmeter of minimum gas volume, and structure design is excessively complicated, not easy care and relatively costly.
The content of the invention
The purpose of the present invention is to overcome that existing gas flowmeter measurement range is universal higher, and resolution ratio is relatively low, complex structure
Problem.
Therefore, the invention provides a kind of adjustable gas flowmeter of resolution ratio, including electromagnetic valve body, U-tube body
And microcomputer, equipped with the solution of insoluble under test gas in the U-tube body, the electromagnetic valve body be provided with magnetic valve air inlet,
Electromagnetism valve air gate and solenoid valve vents mouthful, the electromagnetism valve air gate are connected by conduit with U-tube body air inlet, the U
Level detection mechanism is provided with the wall of type body air inlet side, it is initial that the level detection mechanism is located at solution in U-tube body
Liquid level lower section, is provided with bubble metrological service on the wall of the U-tube body gas outlet side, the U-tube body bottom inner portion is set
There is bubble to produce mouth, the electromagnetic valve body, level detection mechanism and bubble meter are electrically connected with microcomputer.
Further, the adjustable gas flowmeter of above-mentioned resolution ratio also includes gas buffer room, the gas buffer
Room gas outlet connects magnetic valve air inlet.
Further, the level detection mechanism is the second optical generator and being oppositely arranged on U-tube body sidewall
Two optical receivers；The bubble metrological service is that the 3rd optical generator that is oppositely arranged on U-tube body sidewall and the 3rd light connect
Device is received, second optical receiver and the 3rd optical receiver are electrically connected with microcomputer.
Further, the first optical generator and the first optical receiver are provided with solution initial level in the U-tube body,
First optical receiver is electrically connected with microcomputer.
Further, when the optical signal of the second optical generator transmitting changes, the second optical receiver measures one
Pulse simultaneously transmits a signal to microcomputer, microcomputer controlled electro magnet valve gas outlet 4) close, open solenoid valve vents mouthful；First light
When the optical signal of generator transmitting changes, the first optical receiver measures a pulse and transmits a signal to microcomputer, microcomputer
Control solenoid valve vents mouthful are closed, and electromagnetism valve air gate is opened.
Further, caliber of the bore of the U-tube body air inlet and U-tube body gas outlet less than U-tube body.
Further, the bubble produces mouth to be arranged on the one end of U-tube body bottom near U-tube body gas outlet, and gas
Bubble produces the bore of mouth to be gradually reduced along gas motion direction.
Further, it is 0.03~1ml that the bubble produces the bubble volume that mouth is produced.
Further, be provided with pressure-temperature sensor at the U-tube body air inlet, the pressure-temperature sensor with it is micro-
Mechatronics.
Further, the U-shaped its bottom is provided with support base.
Compared with prior art, beneficial effects of the present invention：
(1) resolution ratio and range of the adjustable gas flowmeter of this resolution ratio that the present invention is provided can be according to actual need
Ask and automatically adjust, and certainty of measurement is high, it is simple to operate, it is easy to use.
(2) the adjustable gas flowmeter of this resolution ratio that the present invention is provided is tested and stored up automatically by microcomputer
Deposit data, can be continuously long-running, and measurement efficiency is high.
(3) the adjustable gas flowmeter of this resolution ratio that the present invention is provided uses modularized design, it is easy to change
Impaired parts, it is easy to safeguard and low cost.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention shows the adjustable gas flowmeter of resolution ratio.
Description of reference numerals：1st, gas buffer room；2nd, magnetic valve air inlet；3rd, electromagnetic valve body；4th, electromagnetism valve air gate；5、
Conduit；6th, U-tube body air inlet；7th, U-tube body；8th, pressure-temperature sensor；9th, the first optical generator；10th, the first light-receiving
Device；11st, the second optical generator；12nd, the second optical receiver；13rd, solenoid valve vents mouthful；14th, bubble produces mouth；15th, support base；
16th, bubble；17th, the 3rd optical generator；18th, the 3rd optical receiver；19th, U-tube body gas outlet.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, a kind of adjustable gas flowmeter of resolution ratio is present embodiments provided, including electromagnetic valve body 3,
U-tube body 7 and microcomputer (not shown), the U-tube body 7 built with insoluble under test gas solution, the magnetic valve
Body 3 is provided with magnetic valve air inlet 2, electromagnetism valve air gate 4 and solenoid valve vents mouth 13, and the electromagnetism valve air gate 4 is by leading
Pipe 5 is connected with U-tube body air inlet 6, and level detection mechanism, the liquid level are provided with the side wall of U-tube body air inlet 6
Testing agency is located at solution initial level lower section in U-tube body 7, and bubble is provided with the side wall of the U-tube body gas outlet 19
Metrological service, the bottom inner portion of U-tube body 7 be provided with bubble produce mouth 14, the electromagnetic valve body 3, level detection mechanism and
Bubble meter is electrically connected with microcomputer.
Wherein, the physicochemical properties stabilization of the solution for being contained in the U-tube body 7, it is not volatile, almost do not dissolve and appoint
What gas.The level detection mechanism is the second optical generator 11 and the second light-receiving being oppositely arranged on the side wall of U-tube body 7
Device 12；The bubble metrological service is the 3rd optical generator 17 and the 3rd optical receiver being oppositely arranged on the side wall of U-tube body 7
18, the optical receiver 18 of second optical receiver 12 and the 3rd is electrically connected with microcomputer.
When carrying out gas flow measurement using the adjustable gas flowmeter of above-mentioned resolution ratio, can be surveyed using following two
Amount method.
A kind of way of example, first, the magnetic valve air inlet 2 and electromagnetism valve air gate 4 of electromagnetic valve body 3 is opened, electricity
Magnet valve exhaust outlet 13 is closed, liquid level of solution flush in both sides in U-tube body 7；Then, under test gas are connected into magnetic valve air inlet
2, under test gas after electromagnetism valve air gate 4 enters in U-tube body 7 along U-tube body air inlet 6, the liquid level in U-tube body 7
Change, the end liquid level of U-tube body air inlet 6 declines, the end liquid level of U-tube body gas outlet 19 rises, when U-tube body air inlet 6
End liquid level is reduced to when at the second optical generator 11, and the optical signal (such as light transmission) of the transmitting of the second optical generator 11 changes
Become, now the second optical receiver 12 can measure a pulse and feed back to microcomputer, and microcomputer controlled electro magnet valve gas outlet 4 is closed, and beats
Open electromagnetic valve exhaust outlet 13, gas is by the discharge release of solenoid valve vents mouthful 13, the end liquid of U-tube body air inlet 6 in U-tube body 7
Face is gone up to initial level, and now microcomputer controlled electro magnet valve exhaust outlet 13 is closed, and electromagnetism valve air gate 4 is opened, and gas is further through U
Type body air inlet 6 enters in U-tube body 7；So go round and begin again, because initial level is to molten between the second optical generator 11
Liquid product can be to regulate and control and known, then the light pulse quantity for passing through computer metering, just can obtain the body of under test gas
Product or flow velocity.And the resolution ratio of the adjustable gas flowmeter of the resolution ratio is solution in U-tube body 7 in this implementation method
The volume of solution, is generally located between 1~10mL between initial level and the second optical generator 11, can be by adjusting U-tube
The distance between solution initial level and second optical generator 11 are controlled by body 7.
Further, in order in accurate U-tube body 7 liquid level of solution go up to the time point of initial level, so as to accurate control
The opening and closing of electromagnetism valve air gate 4 processed and solenoid valve vents mouthful 13, first is provided with the U-tube body 7 at solution initial level
The optical receiver 10 of optical generator 9 and first, first optical receiver 10 is electrically connected with microcomputer, the first optical generator 9 and first
The same level of optical receiver 10 is oppositely arranged.When gas release in U-tube body 7, liquid level of solution gos up to recover in U-tube body 7
During to initial level (i.e. at the first optical generator 9), the optical signal (such as light transmission) of the transmitting of the first optical generator 9 changes
Become, the first optical receiver 10 for now matching with the first optical generator 9 can measure a pulse and feed back to microcomputer, Jin Erwei
Machine control solenoid valve vents mouthful 13 are closed, and electromagnetism valve air gate 4 is opened.
Another embodiment, the magnetic valve air inlet 2 and electromagnetism valve air gate 4 of electromagnetic valve body 3 is always on, electromagnetism
Valve outlet 13 is closed all the time, under test gas connection magnetic valve air inlet 2, and under test gas are by electromagnetism valve air gate 4 along U-tube
Body air inlet 6 enters in U-tube body 7, when solution produces mouth 14 by gas compression to bubble in U-tube body 7, can produce bubble
16, when bubble 16 rises through the light path of the transmitting of the 3rd optical generator 17, the 3rd optical receiver 18 can detect optical signal (such as
Light transmission) change, so as to a pulse can be measured and microcomputer is fed back to.And the size of bubble 16 can be produced by bubble
The processing dimension of raw mouth 14 and position are controlled by and fix, and in conjunction with the umber of pulse of the metering of the 3rd optical receiver 18, just can obtain
Obtain the volume and flow velocity of under test gas.And the resolution ratio of the adjustable gas flowmeter of the resolution ratio is in this implementation method
The size of bubble 16, can produce the size of mouth 14 and position to be controlled by, typically by the volume control of bubble 16 by bubble
System is in 0.03~1ml.
Further, because the volume of bubble 16 is demarcated under the conditions of certain temperature and pressure, therefore can be U-shaped
Pressure-temperature sensor 8 is set in body 7, and the temperature and pressure of acquisition is passed to microcomputer simultaneously in real time by pressure-temperature sensor 8
Calibration gas volume.
In order that the bubble for obtaining the bubble generation generation of mouth 14 can smoothly pass through the 3rd optical generator 17, the bubble is produced
Mouth 14 is arranged on the one end of the bottom of U-tube body 7 near U-tube body gas outlet 19, and bubble produces the bore of mouth 14 to be transported along gas
Dynamic direction is gradually reduced, and bubble 16 can vertically rise after producing in one end VERTICAL TUBE of U-tube body gas outlet 19, it is ensured that generation
Bubble 16 will not touch the side wall of U-tube body 7, and the big I of bubble 16 is adjusted by the caliber size of bubble generation mouth 14
Section.
For the system to be measured of different gas production rates, by microcomputer above two measurement pattern can be selected simultaneously accurate
Measurement.
In addition, the stabilization in order to ensure air pressure in U-tube body 7, the adjustable gas flowmeter of the resolution ratio also includes
Gas buffer room 1, the gas outlet connection magnetic valve air inlet 2 of the gas buffer room 1, under test gas enter U-tube body 7 it
It is preceding to enter row buffering in gas buffer room 1.Further, by the U-tube body air inlet 6 and the bore of U-tube body gas outlet 19
Less than the caliber of U-tube body 7, the stable gas pressure for improving its air inlet and outlet is changed by the caliber of U-tube body 7, so as to improve
The certainty of measurement of the adjustable gas flowmeter of the resolution ratio.
And in order to ensure the accuracy of the adjustable gas flowmeter of the resolution ratio persistently measurement, the bottom of U-tube body 7
Portion is provided with support base 15, and U-tube body 7 is fixed on support base 15 can be prevented effectively from rocking for solution in U-tube body 7 and shadow
Ring the stabilization of its air pressure inside.In order to be reclaimed under test gas, by the U-tube body gas outlet 19 and solenoid valve vents mouthful
13 external gas concentration units, it is to avoid the waste of gas.
In sum, the certainty of measurement of the adjustable gas flowmeter of this resolution ratio that the present invention is provided is high, differentiates
Rate and range can automatically adjust according to the actual requirements, and be measured and data storage by microcomputer automatic control, can be continuous
Long-play.
It is exemplified as above be only to of the invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is that design same or analogous with the present invention is belonged within protection scope of the present invention.
Claims (10)
1. the adjustable gas flowmeter of a kind of resolution ratio, it is characterised in that：Including electromagnetic valve body (3), U-tube body (7) and
Microcomputer, built with the solution of insoluble under test gas, the electromagnetic valve body (3) is provided with magnetic valve air inlet to the U-tube body (7)
Mouth (2), electromagnetism valve air gate (4) and solenoid valve vents mouthful (13), the electromagnetism valve air gate (4) is by conduit (5) and U-tube
Body air inlet (6) is connected, and level detection mechanism, the level detection machine are provided with the wall of U-tube body air inlet (6) side
Structure is located at the interior solution initial level lower section of U-tube body (7), and bubble meter is provided with the wall of U-tube body gas outlet (19) side
Measuring mechanism, U-tube body (7) bottom inner portion is provided with bubble and produces mouth (14), the electromagnetic valve body (3), level detection machine
Structure and bubble meter are electrically connected with microcomputer.
2. the adjustable gas flowmeter of resolution ratio as claimed in claim 1, it is characterised in that：Also include gas buffer room
(1), the gas outlet of the gas buffer room (1) connects magnetic valve air inlet (2).
3. the adjustable gas flowmeter of resolution ratio as claimed in claim 1, it is characterised in that：The level detection mechanism
It is the second optical generator (11) and the second optical receiver (12) that are oppositely arranged on the wall of U-tube body (7) side；The bubble metering
Mechanism is the 3rd optical generator (17) and the 3rd optical receiver (18) being oppositely arranged on the wall of U-tube body (7) side, described second
Optical receiver (12) and the 3rd optical receiver (18) are electrically connected with microcomputer.
4. the adjustable gas flowmeter of resolution ratio as claimed in claim 3, it is characterised in that：In the U-tube body (7)
Be provided with the first optical generator (9) and the first optical receiver (10) at solution initial level, first optical receiver (10) with
Microcomputer is electrically connected.
5. the adjustable gas flowmeter of resolution ratio as claimed in claim 4, it is characterised in that：Second optical generator
(11) when the optical signal of transmitting changes, the second optical receiver (12) measures a pulse and transmits a signal to microcomputer, micro-
Machine controls electromagnetism valve air gate (4) to close, and opens solenoid valve vents mouthful (13)；
When the optical signal of the first optical generator (9) transmitting changes, the first optical receiver (10) measures a pulse simultaneously
Microcomputer is transmitted a signal to, microcomputer controlled electro magnet valve exhaust outlet (13) is closed, and electromagnetism valve air gate (4) is opened.
6. the adjustable gas flowmeter of resolution ratio as claimed in claim 1, it is characterised in that：The U-tube body air inlet
Caliber of the bore of mouth (6) and U-tube body gas outlet (19) less than U-tube body (7).
7. the adjustable gas flowmeter of resolution ratio as claimed in claim 1, it is characterised in that：The bubble produces mouth
(14) one end of U-tube body (7) bottom near U-tube body gas outlet (19) is arranged on, and bubble produces the bore edge of mouth (14)
Gas motion direction is gradually reduced.
8. the adjustable gas flowmeter of resolution ratio as claimed in claim 7, it is characterised in that：The bubble produces mouth
(14) bubble volume for producing is 0.03~1ml.
9. the adjustable gas flowmeter of resolution ratio as claimed in claim 1, it is characterised in that：The U-tube body air inlet
Mouth (6) place is provided with pressure-temperature sensor (8), and the pressure-temperature sensor (8) is electrically connected with microcomputer.
10. the adjustable gas flowmeter of resolution ratio as claimed in claim 1, it is characterised in that：The U-tube body (7)
Bottom is provided with support base (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108641.2A CN106768099A (en) | 2017-02-27 | 2017-02-27 | A kind of adjustable gas flowmeter of resolution ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108641.2A CN106768099A (en) | 2017-02-27 | 2017-02-27 | A kind of adjustable gas flowmeter of resolution ratio |
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| Publication Number | Publication Date |
|---|---|
| CN106768099A true CN106768099A (en) | 2017-05-31 |
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ID=58959036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710108641.2A Pending CN106768099A (en) | 2017-02-27 | 2017-02-27 | A kind of adjustable gas flowmeter of resolution ratio |
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| Country | Link |
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| CN (1) | CN106768099A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033559A (en) * | 2017-12-28 | 2018-05-15 | 湖北洛克泰克仪器股份有限公司 | A kind of anaerobic waste water biodegradation instrument |
| CN111350063A (en) * | 2018-12-24 | 2020-06-30 | 李赞荣 | Microwave vacuum quick drying box |
| WO2022100494A1 (en) * | 2020-11-16 | 2022-05-19 | 碧普华瑞环境技术（北京）有限公司 | Gas measuring device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952639A (en) * | 2006-11-08 | 2007-04-25 | 浙江大学 | Automatic bubble counting system based on photoelectric technology |
| CN103674156A (en) * | 2013-12-30 | 2014-03-26 | 农业部环境保护科研监测所 | Metering device and metering method of laboratory trace gases |
| CN206601157U (en) * | 2017-02-27 | 2017-10-31 | 湖北洛克泰克仪器有限公司 | A kind of adjustable gas flowmeter of resolution ratio |
-
2017
- 2017-02-27 CN CN201710108641.2A patent/CN106768099A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952639A (en) * | 2006-11-08 | 2007-04-25 | 浙江大学 | Automatic bubble counting system based on photoelectric technology |
| CN103674156A (en) * | 2013-12-30 | 2014-03-26 | 农业部环境保护科研监测所 | Metering device and metering method of laboratory trace gases |
| CN206601157U (en) * | 2017-02-27 | 2017-10-31 | 湖北洛克泰克仪器有限公司 | A kind of adjustable gas flowmeter of resolution ratio |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033559A (en) * | 2017-12-28 | 2018-05-15 | 湖北洛克泰克仪器股份有限公司 | A kind of anaerobic waste water biodegradation instrument |
| CN111350063A (en) * | 2018-12-24 | 2020-06-30 | 李赞荣 | Microwave vacuum quick drying box |
| WO2022100494A1 (en) * | 2020-11-16 | 2022-05-19 | 碧普华瑞环境技术（北京）有限公司 | Gas measuring device |
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