CN208887710U - A kind of gas micro metering device - Google Patents
A kind of gas micro metering device Download PDFInfo
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- CN208887710U CN208887710U CN201821500585.3U CN201821500585U CN208887710U CN 208887710 U CN208887710 U CN 208887710U CN 201821500585 U CN201821500585 U CN 201821500585U CN 208887710 U CN208887710 U CN 208887710U
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Abstract
The utility model discloses a kind of gas micros to measure device, belong to gas measuring apparatus field, it include the container equipped with liquid including 1., it is located at the container cover of container upper end, it is located at the air inlet of container lower end, the inside of container, which is equipped with, is connected with metering device by shaft, the metering device includes spill spin block, the spill spin block lower end is connected with downwardly open and symmetrical left chamber and right chamber, it is equipped with and partition corresponding above and below air inlet among left chamber and right chamber, the upper end of spill spin block is equipped with the permanent magnet matched with the magnetosensitive induction pieces for being fixed on container cover upper end, the left chamber and the transversal of right chamber are gradually reduced upwardly, the two sides of the metering device are equipped with symmetrical limited block.The utility model has the beneficial effects that the device can satisfy atomic small and interruption gas automatic gauge.
Description
Technical field
The utility model relates to gas measuring apparatus field, specifically a kind of gas micro measures device.
Background technique
Flow instrument is one of the major class instrument in process automation instrument and device, it is widely used in industrial production
Every field, be develop industrial and agricultural production, it is energy saving, improve production quality, the weight increased economic efficiency with management level
Tool is wanted, is occupied an important position in national economy.
Wherein, the measurement of gas flow technology being widely used in each field of industrial production, flow metering method is also extremely
It is abundant, such as turbine flowmeter, orifice plate, bend pipe, Venturi meter, spinner flowmeter etc., the above-mentioned method enumerated be chiefly used in compared with
Big flow measurement.For some small flowmeter amount demands, such as gas flow, Laboratory air flow measurement etc., these are answered
With often using wet gas flow meter, such as notification number is the flow mentioned in CN206399487U, CN206223244U
Meter.But for some more small measurement of gas flow demands, these above-mentioned technologies are unable to satisfy, such as exhaust valve
The detection of small capacity, gas production detection of small-sized methane generator etc., gas flow may be discontinuous or pole
Its is small, though there is soap film flowmeter to can solve subproblem, faces and is difficult to realize automation, poor work stability etc. lacks
Point.
For this purpose, applicant proposed a kind of completely new technical solutions, and a kind of micro flowermeter of gas is provided, with
Meet the automatic gauge of pole minute gas.
Utility model content
The purpose of this utility model is to provide a kind of gas micro metering device, the device can satisfy it is atomic small and
It is interrupted the automatic gauge of gas.
To achieve the above object, the technical solution of the utility model is as follows:
The device includes the container that liquid is housed, the container cover for being located at container upper end, the air inlet for being located at container lower end, is held
The inside of device, which is equipped with, is connected with metering device by shaft, which includes spill spin block, which, which is connected with, opens downwards
The transversal of mouth and symmetrical left chamber and right chamber, left chamber and right chamber is gradually reduced upwardly.Left chamber and right chamber
Be equipped among room with partition corresponding above and below air inlet, the upper end of spill spin block is equipped with answers with the magnetic susceptibility for being fixed on container cover upper end
The permanent magnet that part matches, the two sides of metering device are additionally provided with the limited block for symmetrically limiting its rotary oscillation.When gas by
After air inlet enters container, the gas of floating is gradually filled with left chamber (by taking this original state as an example), inside left chamber
Its buoyancy increases after liquid gradually empties, and rotates clockwise metering device, and stop under the limitation of limited block, at this point, left
The gas of chamber interior is discharged, and right chamber is corresponding with air inlet, until gassy revolves metering device counterclockwise in right chamber
Turn.Since left chamber and the transversal of right chamber are gradually reduced upwardly, before rotation counterclockwise, the spatial portion on right chamber top
Quartile is in the left side of shaft, and metering device has the tendency that rotating clockwise always under the action of buoyancy, i.e., before spinning, gas
The vector of body buoyancy is located at the left side of rotary shaft.With this swing repeatedly, and pass through permanent magnet and Magnetic Induction part display pendulum
The dynamic period realizes the automatic gauge of micrometeor gas in conjunction with the exhaust volume of left chamber and right chamber.In above-mentioned structure
The gas of atomic flow can be accurately measured, and accurate metering is also able to achieve for the gas of flow rate discontinuities.
Further, the lower limit that swings of the cavity of the left chamber and right chamber is higher than the upper limit that partition is swung, with this
The indoor gas intercommunication of left and right chamber is avoided, the precision of metering is influenced.
Preferably, the section of the cavity of the left chamber and right chamber be it is tapered, when metering device is in the work of limited block
When with lower stopping, gas sufficiently quickly can be discharged for the side cavity of exhaust.
When the device for the first time in use, may left and right chamber be filled with liquid, in order to by the guiding side of gas whole, and
Rotate the chamber of the side to corresponding with air inlet, further, connection is equipped with auxiliary chamber I on the right side of the left chamber upper end,
Connection is equipped with auxiliary chamber II on the left of right chamber upper end, and the auxiliary chamber I is located at the right side of metering device center line, compensated cavity
Room II is located at the left side of metering device center line.
Preferably, the lower end of the partition is equipped with inclined guide surface.
Further, shaft is arranged in the upside of the buoyancy point of metering device, above-mentioned structure guarantees metering device not
State placed in the middle can be formed, makes gas that can only flow to the chamber of side in primary sensitive time section.
Further, the centre of the left chamber and right chamber sets Packed buoyancy chamber, the chamber be capable of providing and
The opposite buoyancy in next direction of rotation guarantees in stable condition before metering device rotates；On the other hand it expands for making
Make the selectivity of metering device material.
Further, the density of the metering device is not more than the density of liquid.
Further, the upper end of the spill spin block is connect by swing rod with permanent magnet, and swing rod is located on liquid level, is led to
The own wt crossed on liquid level provides opposite torque, improves chamber single and accommodates the volume of gas, and the principle can be used
The period size of adjustment quantitative gas lower cover device induction.
Due to the adoption of the above technical scheme, the utility model has the following beneficial effects: the apparatus structure is simple, design is reasonable,
Realize the flow automatic gauge of atomic gas.
Detailed description of the invention
The utility model is described further now in conjunction with attached drawing.
Fig. 1 is the positive structure diagram of the utility model.
Fig. 2 is the utility model stress figure.
Fig. 3 is that the center condition of the utility model is intended to.
In figure: 1, container, 2, liquid, 3, container cover, 4, air inlet, 5, metering device, 501, spill spin block, 502, swing rod,
503, permanent magnet, 504, left chamber, 505, right chamber, 506, partition, 506-1, guide surface, 507, buoyancy chamber, 508, auxiliary
Help chamber I, 509, auxiliary chamber II, 6, shaft, 7, limited block, 8, magnetosensitive induction pieces.
Specific embodiment
As shown in Figure 1-3, a kind of gas micro metering device 5 includes the container 1 equipped with liquid 2,1 upper end of container is set
There are container cover 3,1 lower end of container to be equipped with air inlet 4.The inside of container 1 is equipped with the metering device 5 that density is not more than 2 density of liquid
It (can be made of light material, when being immersed in liquid 2, it is ensured that its buoyancy point is located under shaft 6, therefore cannot be formed
Equilibrium state placed in the middle, and inevitable amesiality), the two sides of metering device 5 are equipped with symmetrical limited block 7.Wherein, metering device
5 include the spill spin block 501 being connect by shaft 6 with container 1, which is located at the upside of the buoyancy point of metering device 5.Rotation
The upper end of block 501 connect by swing rod 502 with permanent magnet 503, and swing rod 502 is located on liquid level, permanent magnet 503 with consolidate
The magnetosensitive induction pieces 8 for being scheduled on 3 upper end of container cover match.501 lower end of spill spin block is connected with a downwardly open and symmetrical left side
Chamber 504 and right chamber 505, and the transversal of left chamber 504 and right chamber 505 is gradually reduced upwardly, preferably left chamber 504
Vertical cross section with the cavity of right chamber 505 is tapered.It is equipped with and about 4 air inlet among left chamber 504 and right chamber 505
The lower limit that swings of the cavity of corresponding partition 506, left chamber 504 and right chamber 505 is higher than the upper limit that partition 506 is swung.Left chamber
Room 504 and the centre of right chamber 505 are additionally provided with the buoyancy chamber 507 of sealing, and partition 506 can also be arranged to hollow structure
(being not drawn into figure).
Initial state is deflection state counterclockwise (as shown in Figure 2), at this point, middle partition 506 is biased to the right side of air inlet 4,
Buoyancy point also on 6 right side of shaft, is tested gas by air inlet 4 and enters left chamber 504, and a part of liquid 2 is replaced
It goes out, with the aggregation of gas, 504 internal buoyancy of left chamber increases (F1+F2), and buoyancy point is moved to the left, once buoyancy is made
Vertical face under passing through shaft 6 just with point, metering device 5 turn clockwise immediately and the inswept magnetic susceptibility of permanent magnet 503 are driven to answer
The actual induction area of part 8, magnetosensitive induction pieces 8 issue a pulse signal to subsequent conditioning circuit, realize primary metering.Metering device 5
After turning clockwise, under test gas enters right chamber 505 further through air inlet 4.So on circulate, it converts air motion to
Continuous pulse signal.Limited block 7 is used to limit the amplitude of fluctuation of metering device 5, guarantees that each overturning of metering device 5 all stops
In identical position, it is consistent due to overturning corresponding bubble volume every time, by demarcating the corresponding gas volume of every pulse,
The period of metrical pulse signal or frequency, can Accurate Determining gas flow.
Wherein, tongue tube can be used in magnetosensitive induction pieces 8, can measure the micro-air flow from evolutions such as exhaust valves, to
Judge the working condition of exhaust valve.
When the reasons such as 2 variable density of liquid cause metering device 5 in liquid 2 in center condition (as shown in Figure 3),
Setting auxiliary chamber I 508 can be connected on the right side of 504 upper end of left chamber, connection setting auxiliary chamber II on the left of 505 upper end of right chamber
509, and auxiliary chamber I 508 is located at the right side of 5 center line of metering device, auxiliary chamber II 509 is located at 5 center line of metering device
Left side.In order to make gas import side completely, the lower end of partition 506 is equipped with inclined guide surface 506-1.This kind of shape placed in the middle
State is gradually collected at auxiliary chamber I 508 topmost, due to auxiliary after gas enters left chamber 504 along guide surface 506-1
I 508 the top of chamber is in the right side of shaft 6, and metering device 5 rotates counterclockwise under the action of I 508 buoyancy of auxiliary chamber,
So that left chamber 504 is corresponding with air inlet 4, guarantees that gas can only enter side in the sensitive time section of single with this, improve
The precision of metering.
Although being explained in detail above to the utility model, the utility model is without being limited thereto, the skill of the art
Art personnel can be modified with principle according to the present utility model, therefore, all according to the various of the principles of the present invention progress
Modification all should be understood as falling into the protection scope of the utility model.
Claims (9)
1. a kind of gas micro measures device, including being equipped with the container of liquid, the container cover for being located at container upper end, being located at container
The air inlet of lower end, it is characterised in that: the inside of container is equipped with the metering device connected by shaft, which includes rotation
Switch block, the spill spin block lower end are connected with downwardly open and symmetrical left chamber and right chamber, among left chamber and right chamber
Match equipped with being equipped with the upper end of partition corresponding above and below air inlet, spill spin block with the magnetosensitive induction pieces for being fixed on container cover upper end
The permanent magnet of conjunction；
The left chamber and the transversal of right chamber are gradually reduced upwardly；
The two sides of the metering device are equipped with symmetrical limited block.
2. a kind of gas micro according to claim 1 measures device, it is characterised in that: the left chamber and right chamber
Cavity swing lower limit be higher than partition swing the upper limit.
3. a kind of gas micro according to claim 2 measures device, it is characterised in that: the left chamber and right chamber
Cavity section be it is tapered.
4. a kind of gas micro according to claim 1 to 3 measures device, it is characterised in that: the left chamber
Connection is equipped with auxiliary chamber I on the right side of the upper end of room, and connection is equipped with auxiliary chamber II on the left of right chamber upper end, and the auxiliary chamber I sets
On the right side of metering device center line, auxiliary chamber II is located at the left side of metering device center line.
5. a kind of gas micro according to claim 4 measures device, it is characterised in that: the lower end of the partition is equipped with
Inclined guide surface.
6. a kind of gas micro according to claim 1 to 3 measures device, it is characterised in that: the shaft
Positioned at the upside of the buoyancy point of metering device.
7. a kind of gas micro according to claim 1 to 3 measures device, it is characterised in that: the left chamber
Room and the centre of right chamber set Packed buoyancy chamber.
8. a kind of gas micro according to claim 1 to 3 measures device, it is characterised in that: the metering
The density of device is not more than the density of liquid.
9. a kind of gas micro according to claim 1 to 3 measures device, it is characterised in that: the rotation
The upper end of block is connect by swing rod with permanent magnet, and swing rod is located on liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500585.3U CN208887710U (en) | 2018-09-13 | 2018-09-13 | A kind of gas micro metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500585.3U CN208887710U (en) | 2018-09-13 | 2018-09-13 | A kind of gas micro metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208887710U true CN208887710U (en) | 2019-05-21 |
Family
ID=66512260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821500585.3U Active CN208887710U (en) | 2018-09-13 | 2018-09-13 | A kind of gas micro metering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029595A (en) * | 2018-09-13 | 2018-12-18 | 山东建华阀门制造有限公司 | A kind of gas micro metering device |
-
2018
- 2018-09-13 CN CN201821500585.3U patent/CN208887710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029595A (en) * | 2018-09-13 | 2018-12-18 | 山东建华阀门制造有限公司 | A kind of gas micro metering device |
| CN109029595B (en) * | 2018-09-13 | 2024-04-16 | 山东建华阀门制造有限公司 | Gas micro-flow metering device |
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