CN209355997U - A kind of eddy currents gas flowmeter - Google Patents
A kind of eddy currents gas flowmeter Download PDFInfo
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- CN209355997U CN209355997U CN201920101132.1U CN201920101132U CN209355997U CN 209355997 U CN209355997 U CN 209355997U CN 201920101132 U CN201920101132 U CN 201920101132U CN 209355997 U CN209355997 U CN 209355997U
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- air inlet
- generating body
- steel pipe
- inlet pipe
- swirl generating
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Abstract
The utility model discloses a kind of eddy currents gas flowmeters, including gauge outfit, fixing seat, steel pipe and air inlet pipe, the gauge outfit is fixed at the upper surface of fixing seat, the steel-pipe welding is in the lower end surface of fixing seat, the air inlet pipe is fixed at the lower end of steel pipe, and the lower end of the steel pipe is provided with bracket on the outside of air inlet pipe；The bottom of the steel pipe extends into air inlet pipe is fixedly installed with swirl generating body, and the two sides of the swirl generating body offer detection slot.A kind of eddy currents gas flowmeter described in the utility model, hole is collected equipped with adjusting rod, tensioning steel wire, vortex, touches tiltler, by turning adjusting rod, the level of tightness for increasing tensioning steel wire, prevents its loosening, to effectively be corrected, be resetted to the position of swirl generating body, improve the accuracy of measurement, this kind of mode can measure the fluid compared with low flow velocity, and sensitivity is high, and measurement range is wider；It is applicable in different operating situation, brings better prospect of the application.
Description
Technical field
The utility model relates to industrial pipeline field, in particular to a kind of eddy currents gas flowmeter.
Background technique
Vortex-shedding meter be the measurement gas researched and produced according to Karman vortex street principle, the volume flow of steam or liquid,
The volume flow of condition or the volume flowmeter of mass flow are marked, the flow measurement of industrial pipeline medium fluid, such as gas are mainly used for
A variety of media such as body, liquid, steam, its main feature is that the pressure loss is small, range ability is big, precision is high, in Test Cycle volume flow
It is hardly influenced by parameters such as fluid density, pressure, temperature, viscosity when amount；Existing eddy currents gas flowmeter is using
When there are certain drawbacks, swirl generating body is generally fixedly disposed at the position between steel pipe and air inlet pipe, using it is long long afterwards
The position of swirl generating body can be made to deviate script because of extraneous, steel pipe vibration and the influence for the impact force for measuring fluid
Position, to influence measurement result, while most of measurement sensor is capacitance probe now, it is mounted on swirl generating body
Inside, and do not contacted by side medium, when fluid flow rate is lower, the sensitivity of probe is low, and leading to measurement, there are errors, influences
The measurement range of flowmeter brings certain adverse effect in use, for this purpose, it is proposed that a kind of eddy currents gas
Flowmeter.
Utility model content
The main purpose of the utility model is to provide a kind of eddy currents gas flowmeters, can effectively solve background technique
The problems in.
To achieve the above object, the technical solution that the utility model is taken are as follows:
A kind of eddy currents gas flowmeter, including gauge outfit, fixing seat, steel pipe and air inlet pipe, the gauge outfit are fixed at
The upper surface of fixing seat, for the steel-pipe welding in the lower end surface of fixing seat, the air inlet pipe is fixed at the lower end of steel pipe, institute
The lower end for stating steel pipe is provided with bracket on the outside of air inlet pipe；
The bottom of the steel pipe extends into air inlet pipe is fixedly installed with swirl generating body, the two sides of the swirl generating body
Face offers detection slot, and piezoelectric patches, the upper end connection of the piezoelectric patches are symmetrically installed on the front and back inner wall of the detection slot
There is lead, touch tiltler, the medium position two sides pair for touching tiltler are movably installed between piezoelectric patches described in two groups
Title is equipped with reset spring, and vortex is offered on the lower end inner wall of the detection slot and collects hole, under the touch tiltler
End is provided with yaw, the outer surface metal-plated membrane of the yaw close to the horizontal position that vortex collects hole；
The upper surface of the swirl generating body is symmetrically welded with two groups of annulus, and hook, institute are connected on the annulus
There is tensioning steel wire in the upper end system for stating hook, and the two sides of the fixing seat offer thread groove, and activity is set in the thread groove
It is equipped with adjusting rod, the steel wire trough for acting on tensioning steel wire is offered on the adjusting rod, close steel wire trough on the adjusting rod
Side is provided with external screw thread, and an end of the adjusting rod is welded with cross head.
Preferably, the bracket includes four groups of struts and four groups of clamps, and the swirl generating body is triangle column type and is located at
On the center line of air inlet tube section, the swirl generating body, which is located at the position of steel pipe bottom, is provided with sealing structure.
Preferably, the lead is upwardly into steel pipe and extends into the inside of gauge outfit, described to touch the interior of tiltler
Position of the portion between two groups of reset springs connects one group using bearing and extends the fixing axle fixed with detection slot, institute outward
The material for stating yaw is foamed aluminium.
Preferably, the position that the adjusting rod protrudes into thread groove corresponds to externally threaded position, and the inside of the steel wire trough is opened
Equipped with aperture.
Compared with prior art, the utility model has the following beneficial effects: the eddy currents gas flowmeter, passes through setting
Adjusting rod and tensioning steel wire increase the level of tightness of tensioning steel wire, its loosening are prevented, thus effectively by turning adjusting rod
The position of swirl generating body is corrected, is resetted, the accuracy of measurement is improved；Hole is collected by setting vortex, touches inclination
Body collects hole using vortex and collects the mobile air-flow generated of vortex, and swings yaw, the frequency swung according to yaw, it is known that
By the quantity and release frequency of vortex, the release frequency of vortex but with the fluid average speed phase that flows through swirl generating body
It closes, therefore the speed of fluid can be measured, this kind of mode can measure the fluid compared with low flow velocity, and sensitivity is high, measurement range
It is wider；Entire gas flowmeter design is simple, easy to operate, applied widely, is hardly damaged, the effect used is relative to tradition
Mode is more preferable.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of eddy currents gas flowmeter of the utility model；
Fig. 2 is the location drawing that a kind of eddy currents gas flowmeter vortex of the utility model occurs；
Fig. 3 is a kind of interior views of eddy currents gas flowmeter detection slot of the utility model；
Fig. 4 is the enlarged drawing of A in a kind of eddy currents gas flowmeter Fig. 2 of the utility model；
Fig. 5 is a kind of installation site figure of eddy currents gas flowmeter adjusting rod of the utility model；
Fig. 6 is a kind of structure chart of eddy currents gas flowmeter adjusting rod of the utility model.
In figure: 1, gauge outfit；2, fixing seat；3, steel pipe；4, air inlet pipe；5, bracket；6, swirl generating body；7, detection slot；8,
Piezoelectric patches；9, lead；10, tiltler is touched；11, reset spring；12, vortex collects hole；13, yaw；14, metal film；15, circle
Ring；16, it links up with；17, it is tensioned steel wire；18, thread groove；19, adjusting rod；20, steel wire trough；21, external screw thread；22, cross head.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
As shown in figures 1 to 6, a kind of eddy currents gas flowmeter, including gauge outfit 1, fixing seat 2, steel pipe 3 and air inlet pipe 4, table
First 1 is fixed at the upper surface of fixing seat 2, and steel pipe 3 is welded on the lower end surface of fixing seat 2, and air inlet pipe 4 is fixed at steel pipe
The lower end of 3 lower end, steel pipe 3 is provided with bracket 5 close to the outside of air inlet pipe 4；
The bottom of steel pipe 3 extends into air inlet pipe 4 is fixedly installed with swirl generating body 6, and the two sides of swirl generating body 6 are equal
Detection slot 7 is offered, piezoelectric patches 8 is symmetrically installed on the front and back inner wall of detection slot 7, the upper end of piezoelectric patches 8 is connected with lead 9,
It is movably installed between two groups of piezoelectric patches 8 and touches tiltler 10, the medium position two sides for touching tiltler 10 are symmetrically installed with again
Position spring 11, allows the touch tiltler 10 of swing to respond immediately to original position, and vortex collection is offered on the lower end inner wall of detection slot 7
Hole 12, the lower end for touching tiltler 10 are provided with yaw 13, the appearance of yaw 13 close to the horizontal position that vortex collects hole 12
Face metal-plated membrane 14 plays the role of preventing gas attack, improves the service life of yaw 13；
The upper surface of swirl generating body 6 is symmetrically welded with two groups of annulus 15, and hook 16 is connected on annulus 15, hook
There is tensioning steel wire 17 in 16 upper end system, and the two sides of fixing seat 2 offer thread groove 18, the specific location of two groups of thread grooves 18
It is configured according to the position of swirl generating body 6, adjusting rod 19 is movably set in thread groove 18, work is offered on adjusting rod 19
For being tensioned the steel wire trough 20 of steel wire 17, the side of close steel wire trough 20 is provided with external screw thread 21, adjusting rod 19 on adjusting rod 19
An end be welded with cross head 22；
Bracket 5 includes four groups of struts and four groups of clamps, plays the role of supporting and fixing superstructure, swirl generating body 6
For triangle column type and it is located on the center line in 4 section of air inlet pipe, swirl generating body 6, which is located at the position of 3 bottom of steel pipe, to be provided with
Sealing structure prevents gas from flowing into steel pipe 3；Lead 9 is upwardly into steel pipe 3 and extends into the inside of gauge outfit 1, touches inclination
Position of the inside of body 10 between two groups of reset springs 11 connects one group of extension outward using bearing and detection slot 7 is fixed
Fixing axle, touch tiltler 10 and moved around fixing axle, the material of yaw 13 is foamed aluminium, light weight, and swing is sensitive；It adjusts
The position that bar 19 protrudes into thread groove 18 corresponds to the position of external screw thread 21, and the inside of steel wire trough 20 offers aperture, wears for steel wire
It crosses and fixed.
It should be noted that the utility model is that a kind of eddy currents gas flowmeter is set in air inlet pipe 4 when in use
The triangle column type swirl generating body 6 set, as shown in Fig. 2, encountering gas, gas alternately has from 6 two sides of swirl generating body
The vortex of rule, vortex are listed in 6 downstream of swirl generating body and asymmetricly arrange, and then the vortex in detection slot 7 is collected hole 12 and allowed
The air-flow that vortex generates enters, and applies active force to yaw 13, touches tiltler 10 and connects to side inclination and one group of piezoelectric patches 8
By outer mechanical force electric polarization is occurred for touching, piezoelectric patches 8, generates piezoelectric effect, the frequency swung according to yaw 13, it is known that
By the quantity and release frequency of vortex, the release frequency of vortex but with the fluid average speed phase that flows through swirl generating body 6
It closes, therefore the speed of fluid can be measured, the signal of measurement is passed to by gauge outfit 1 by lead 9, digital can show flow velocity,
Before measuring, it needs to turn using cross head 22 of the Phillips screwdriver to adjusting rod 19, by the rotation of adjusting rod 19,
Tensioning steel wire 17 coils in steel wire trough 20, increases the tensioning degree of tensioning steel wire 17, and two groups of tensioning steel wires 17 pass through hook 16
Swirl generating body 6 is vertically fixed, thus achieve the effect that the position to swirl generating body 6 is corrected, it is more practical.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of eddy currents gas flowmeter, including gauge outfit (1), fixing seat (2), steel pipe (3) and air inlet pipe (4), feature exists
In: the gauge outfit (1) is fixed at the upper surface of fixing seat (2), and the steel pipe (3) is welded on the lower end surface of fixing seat (2),
The air inlet pipe (4) is fixed at the lower end of steel pipe (3), and the lower end of the steel pipe (3) is arranged close to the outside of air inlet pipe (4)
There are bracket (5)；
The bottom of the steel pipe (3) extends into air inlet pipe (4) is fixedly installed with swirl generating body (6), the swirl generating body
(6) two sides offer detection slot (7), are symmetrically installed with piezoelectric patches (8), institute on the front and back inner wall of the detection slot (7)
The upper end for stating piezoelectric patches (8) is connected with lead (9), is movably installed between piezoelectric patches described in two groups (8) and is touched tiltler (10),
The medium position two sides for touching tiltler (10) are symmetrically installed with reset spring (11), the lower end of the detection slot (7)
Vortex is offered on inner wall and collects hole (12), and the lower end for touching tiltler (10) collects the level of hole (12) close to vortex
Position is provided with yaw (13), the outer surface metal-plated membrane (14) of the yaw (13)；
The upper surface of the swirl generating body (6) is symmetrically welded with two groups of annulus (15), is connected on the annulus (15)
It links up with (16), the upper end system of the hook (16) has tensioning steel wire (17), and the two sides of the fixing seat (2) offer screw thread
Slot (18), the thread groove (18) is interior to be movably set with adjusting rod (19), is offered on the adjusting rod (19) and is acted on tensioning
The steel wire trough (20) of steel wire (17), the side on the adjusting rod (19) close to steel wire trough (20) are provided with external screw thread (21), institute
The end for stating adjusting rod (19) is welded with cross head (22).
2. a kind of eddy currents gas flowmeter according to claim 1, it is characterised in that: the bracket (5) includes four groups
Strut and four groups of clamps, the swirl generating body (6) is triangle column type and is located on the center line in air inlet pipe (4) section, described
Swirl generating body (6), which is located at the position of steel pipe (3) bottom, is provided with sealing structure.
3. a kind of eddy currents gas flowmeter according to claim 1, it is characterised in that: the lead (9) is upwardly into
Steel pipe (3) is interior and extends into the inside of gauge outfit (1), and the inside for touching tiltler (10) is close to two groups of reset springs (11)
Between position connect one group using bearing and extend outward and fixing axle that detection slot (7) are fixed, the material of the yaw (13)
Material is foamed aluminium.
4. a kind of eddy currents gas flowmeter according to claim 1, it is characterised in that: the adjusting rod (19) protrudes into spiral shell
The position of groove (18) corresponds to the position of external screw thread (21), and the inside of the steel wire trough (20) offers aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101132.1U CN209355997U (en) | 2019-01-22 | 2019-01-22 | A kind of eddy currents gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101132.1U CN209355997U (en) | 2019-01-22 | 2019-01-22 | A kind of eddy currents gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209355997U true CN209355997U (en) | 2019-09-06 |
Family
ID=67803146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920101132.1U Active CN209355997U (en) | 2019-01-22 | 2019-01-22 | A kind of eddy currents gas flowmeter |
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| CN (1) | CN209355997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295670A (en) * | 2023-01-29 | 2023-06-23 | 江苏伟屹电子有限公司 | Vortex street flowmeter with composite vortex street generator convenient to install |
-
2019
- 2019-01-22 CN CN201920101132.1U patent/CN209355997U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116295670A (en) * | 2023-01-29 | 2023-06-23 | 江苏伟屹电子有限公司 | Vortex street flowmeter with composite vortex street generator convenient to install |
| CN116295670B (en) * | 2023-01-29 | 2023-10-31 | 江苏伟屹电子有限公司 | Vortex street flowmeter with composite vortex street generator convenient to install |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vortex street type gas flow meter Effective date of registration: 20200629 Granted publication date: 20190906 Pledgee: Hefei Xingtai financing guarantee Group Ltd. Pledgor: HEFEI SMARTSUN INSTRUMENT Co.,Ltd. Registration number: Y2020980003600 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |