CN205679272U - A kind of modular effusion meter - Google Patents
A kind of modular effusion meter Download PDFInfo
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- CN205679272U CN205679272U CN201620568152.6U CN201620568152U CN205679272U CN 205679272 U CN205679272 U CN 205679272U CN 201620568152 U CN201620568152 U CN 201620568152U CN 205679272 U CN205679272 U CN 205679272U
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Abstract
This utility model belongs to fluid flow Real-time Monitor Technique field, is specifically related to the flow transducer of a kind of modular；Concrete technical scheme is: a kind of modular effusion meter, the shell of fluid passage is set in including, centripetal turbine is installed in fluid passage, the middle part of centripetal turbine is the turbine wheel shaft of frustum, equipped with two helical blades on the middle part sidewall of turbine wheel shaft, fluid flows to, by one end that the sectional area from turbine wheel shaft is bigger, one end that sectional area is less, treat that fluid measured circulation area in centripetal turbine is gradually increased, flow velocity is gradually reduced and pressure is gradually increased, so, can to turbine produce one with flow to contrary thrust, balance portion treats the fluid measured impact forces to centripetal turbine, decrease the frictional force being arranged on centripetal turbine rear bearings, and make centripetal turbine pressure loss of causing when measuring fluid the least, simultaneously, the structure aesthetics of submarine profile is good, can be in fluid inspection field and other similar field wide popularization and application.
Description
Technical field
This utility model belongs to fluid flow Real-time Monitor Technique field, is specifically related to the flow sensing of a kind of modular
Device.
Background technology
The flow transducer flow sensitivity of existing same type is the highest, the fluid flow of particularly 5L/min--30L/min
Meter, is mainly stepped, by victory, external producer that FT-110 Series Turbo flow transducer is representative and the domestic little producer that Jiangsu and Zhejiang Provinces one carries carries
Confession, the former price is higher, is unfavorable for promoting, and the price of the latter is extremely low, but precision is low, is easily damaged, effective average life
It it is 1 month to 1 year.
Simultaneously for the impeller parameters of low discharge turbine flow transducer, the existing impeller shape of industry is more single, base
This is cylindrical axle or the axle of metal bar type, and blade is general several types, this general cylindrical axle and leaf
The cooperation of sheet, although technique is simple, but parameter is not optimal, along with the development of manufacturing technology level, some of impeller
Advanced design also can be produced very easily.
The housing profile of existing sensor is substantially two classes, and a class is the cylinder of diameter the same with pipeline, and a class is this
The shapes such as the circle that body is bigger than pipe diameter, and have the abnormal shape of two manhole appendixs.The side of the sensor convection cell of both profiles
It not very clear on indicating.
The extension of the structure docking port of the most existing sensor is unfavorable, and interface circuit is more complicated, needs bigger circuit
Space, so, extra volume is the biggest, causes the size abnormity of flow transducer, it may appear that top-heavy situation, collects simultaneously
Become Du Taigao, be unfavorable for transformation and the maintenance of product.
Utility model content
For solving the technical problem that precision is low, service life is short that existing flow transducer exists, present solution provides one
Plant novel flow transducer, realize high accuracy, long-life Detection results by the structure of centripetal turbine is improved.
For achieving the above object, the technical scheme that this utility model is used is: a kind of modular effusion meter, including in set
The shell of fluid passage, is provided with centripetal turbine in fluid passage, the middle part of centripetal turbine is the turbine wheel shaft of frustum, turbine wheel shaft
Middle part sidewall on equipped with at least one helical blade, depending on the quantity of helical blade needs according to effusion meter concrete.Shell
Outside on be also equipped with sensor.In use, effusion meter is contained on the fluid line needing to measure according to installation instructions, when
After fluid measured passes through fluid passage, the helical blade of centripetal turbine rotates under the impact treating fluid measured, sensor detection to
The rotating speed of vortex cordis wheel is converted into concrete flow monitoring data.
Due to the turbine wheel shaft that middle part is frustum of centripetal turbine, fluid is by one end bigger from the sectional area of turbine wheel shaft
Flow to one end that sectional area is less, treat that fluid measured flows through the gateway circulation area difference of centripetal turbine, treat that fluid measured is centripetal
Circulation area in turbine is gradually increased, and flow velocity is gradually reduced and pressure is gradually increased, and so, turbine can produce one and stream
To contrary thrust, balance portion treats the fluid measured impact forces to centripetal turbine, decreases and is arranged on centripetal turbine rear portion
The frictional force of bearing, and the pressure loss making centripetal turbine cause when measuring fluid is the least.
Wherein, as preferred structure, the quantity of helical blade is two, and the rotation direction of two helical blades is identical, two
Form spirality channel between helical blade, after fluid measured passes through spirality channel, treat that fluid measured can produce one to turbine
With flow to opposite effect power, balance portion fluid impingement force.
It is fixed with bearing in fluid passage, bearing has multiple sector open passed through for fluid, lives in fluid passage
Dynamic stifled core is installed, the mounting means variation of stifled core, optional snap connection, threaded and elastic connection etc., stifled core will
Centripetal turbine withstands on bearing, it is ensured that centripetal turbine will not arbitrarily rock in fluid passage, it is to avoid the instability of centripetal turbine
Move and affect the stability of flow monitoring.
The inside middle portion of centripetal turbine is provided with the first axis hole, and the inside middle portion of stifled core is provided with the second axis hole, centripetal turbine
Both sides are equipped with support shaft, and the support shaft of centripetal turbine side is arranged in the first axis hole, the support shaft of centripetal turbine opposite side
Being arranged in the second axis hole by bearing, centripetal turbine is unsettled and can stable under the impact treating fluid measured rotate.
Wherein, drawing according to actual experiment data, the preferred helical angle of helical blade is 30-50 °.
Wherein, drawing according to actual tests data, the preferred tapering in the middle part of centripetal turbine is 15-50 °.
The sidewall of shell is provided with the case accommodating sensor, and the top of case is fastened by end cap, the cross section of case
Being shaped as ellipse, case assembles similar submarine shape with shell, has good aesthetics and identification.
The both sides of case are equipped with fin, and fin one end is big, one end is little, and the cross-sectional area of fin is along the stream treating fluid measured
Successively decreasing in dynamic direction, fin has the effect that instruction fluid flows to, and fin is also the Warning Mark of installation direction simultaneously.
Sensor is connected with external interface by cable, and cable is connected with U-shaped card, equipped with transmission circuit module on U-shaped card,
Transmission circuit module realizes the conditioning of sensor signal output signal, carries out intelligent processing method simultaneously, and output is to user-friendly
Interface, such as USB, CAN and RS232 etc., facilitate system level design.When mounted, by U-shaped card, transmission circuit module card is filled
On fluid line, cable is arranged along with the direction of fluid line, and cable will not arbitrarily swing, and cable is arranged in perfect order, joint
About space, aesthetics is good.
This device is by setting the turbine wheel shaft of frustum in fluid passage, and turbine wheel shaft is provided with helical blade, at monitoring stream
During amount, reduce the fluid impingement force that turbine wheel shaft is born, decrease the abrasion of bearing, extend service life.Meanwhile, diving
The structure aesthetics of ship profile is good, and identification is high, can be in fluid inspection field and other similar field wide popularization and application.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is the sectional view in Fig. 2 at A-A.
Fig. 4 front view of the present utility model.
Fig. 5 is the internal structure schematic diagram of shell.
Fig. 6 is the side view of shell.
Fig. 7 is the structural representation of stifled core.
Fig. 8 is the internal structure schematic diagram of stifled core.
Fig. 9 is the side view of stifled core.
Figure 10 is the axonometric chart of centripetal turbine.
Figure 11 is the front view of centripetal turbine.
Figure 12 is the side view of centripetal turbine.
Figure 13 is the pressure drop and flow comparison diagram of this device.
In figure, 1 is shell, and 11 is fluid passage, and 12 is bearing, and 13 is the first axis hole, and 14 is case, and 15 is fin, and 2 are
Centripetal turbine, 21 is turbine wheel shaft, and 22 is helical blade, and 23 is spirality channel, and 24 is support shaft, and 3 is sensor, and 4 block up core,
41 is the second axis hole, and 5 is sector open, and 6 is end cap.
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, with
Lower combination drawings and Examples, are further elaborated to this utility model.Should be appreciated that concrete reality described herein
Execute example only in order to explain this utility model, be not used to limit this utility model.
Embodiment one:
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of modular effusion meter, including in set the shell 1 of fluid passage 11, stream
Being provided with centripetal turbine 2 in body passage 11, the material of shell 1 and centripetal turbine 2 is nylon magnetic.The middle part of centripetal turbine 2 is
The turbine wheel shaft 21 of frustum, equipped with a helical blade 22 on the middle part sidewall of turbine wheel shaft 21, improves fluid and wheel speed
Conversion ratio.Sensor 3 it is also equipped with on the outside of shell 1.In use, effusion meter is contained according to installation instructions need measure
Fluid line on, after passing through fluid passage 11 until fluid measured, the helical blade 22 of centripetal turbine 2 is treating the impact of fluid measured
Lower rotation, sensor 3 detects the rotating speed of centripetal turbine 2 and rotating speed is converted into concrete flow monitoring data.
Embodiment two
As shown in Figure 10, Figure 11 and Figure 12, the difference of the present embodiment and embodiment one is the quantity of helical blade 22,
In the present embodiment, the quantity of helical blade 22 is two, and the rotation direction of two helical blades 22 is identical, between two helical blades 22
Formed spirality channel 23, after fluid measured passes through spirality channel 23, treat fluid measured can to turbine produce one with flow to phase
Anti-active force, balance portion fluid impingement force.
Embodiment three
As shown in Fig. 3, Fig. 6, Fig. 7 and Fig. 9, the difference of the present embodiment and embodiment two is the installation side of centripetal turbine 2
Formula, in the present embodiment, is fixed with bearing 12 in fluid passage 11, bearing 12 has multiple sector open passed through for fluid
5, it is movably installed with stifled core 4 in fluid passage 11, the material of stifled core 4 is nylon, the mounting means variation of stifled core 4, optional
Snap connection, threaded and elastic connection etc., centripetal turbine 2 is scheduled on bearing 12 by stifled core 4, it is ensured that centripetal turbine 2 is at stream
Will not arbitrarily rock in body passage 11, it is to avoid the unsteady motion of centripetal turbine 2 and affect the stability of flow monitoring.
Embodiment four
As shown in Figure 5 and Figure 8, the present embodiment is with the difference of embodiment three: the inside middle portion of centripetal turbine 2 is provided with
One axis hole 13, the inside middle portion of stifled core 4 is provided with the second axis hole 41, and the both sides of centripetal turbine 2 are equipped with support shaft 24, centripetal turbine
The support shaft 24 of 2 sides is arranged in the first axis hole 13, and the support shaft 24 of centripetal turbine 2 opposite side is arranged on second by bearing
In axis hole 41, centripetal turbine 2 is unsettled and can stable under the impact treating fluid measured rotate.
Embodiment five
The present embodiment is with the difference of embodiment four: the preferred helical angle of helical blade 22 is 30 °.
Embodiment six
The present embodiment is with the difference of embodiment four: the preferred helical angle of helical blade 22 is 40 °.
Embodiment seven
The present embodiment is with the difference of embodiment four: the preferred helical angle of helical blade 22 is 50 °.
Embodiment eight
The present embodiment is with the difference of embodiment four: the tapering in the middle part of vortex cordis wheel is 15 °.
Embodiment nine
The present embodiment is with the difference of embodiment four: the tapering in the middle part of vortex cordis wheel is 20 °.
Embodiment ten
The present embodiment is with the difference of embodiment four: the tapering in the middle part of vortex cordis wheel is 30 °.
Embodiment 11
The present embodiment is with the difference of embodiment one: the sidewall of shell 1 is provided with the case 14 accommodating sensor 3, cover
The top of shell 14 is fastened by end cap 6, and the material of end cap 6 is nylon, and the shape of cross section of case 14 be oval, case 14 and
Shell 1 assembles similar submarine shape, has good aesthetics and identification.
Embodiment 12
The present embodiment is with the difference of embodiment 11: the both sides of case 14 are equipped with fin 15, fin 15 one end is big,
One end is little, and the cross-sectional area of fin 15 successively decreases along the flow direction treating fluid measured, and fin 15 has the work that instruction fluid flows to
With, fin 15 is also the Warning Mark of installation direction.
Concrete product advantageous:
Common axial-flow turbine effusion meter, the height of turbo blade is the most identical, treats that fluid measured flows through going out of turbine
Entrance circulation area is the most identical, and this structure is applicable to the detection of big flow.This device keeps constant premise at turbine external diameter
Under, turbine internal diameter shrinks, and helical blade 22 the most axially gradual change has bigger blade height, blade flow under low discharge
The circulation area of body is gradually increased, and has higher conversion efficiency.
Due to the turbine wheel shaft that middle part is frustum 21 of centripetal turbine 2, fluid is by bigger from turbine wheel shaft 21 sectional area
One end flows to one end that sectional area is less, treats that fluid measured flows through the gateway circulation area of centripetal turbine 2 and differs, treats fluid measured
Circulation area in centripetal turbine 2 is gradually increased, and flow velocity is gradually reduced and pressure is gradually increased, and fluid can produce one to turbine
Individual with flow to contrary reasoning, balance portion treats the fluid measured impact forces to centripetal turbine 2, decreases and is arranged on to vortex cordis
Take turns the frictional force of 2 rear bearings, and the pressure loss making centripetal turbine 2 cause when measuring fluid is the least.
Meanwhile, the structure aesthetics of submarine profile is good, and identification is high, can be in fluid inspection field and other similar field
Wide popularization and application.
Sensor 3 is connected with external interface by cable, and main body and the external signal transmission circuit structure of sensor 3 are divided
Opening, waterproof plug cable connects, and cable is connected with U-shaped card, and equipped with transmission circuit module on U-shaped card, transmission circuit module is real
The conditioning of existing sensor 3 signal output signal, carries out intelligent processing method simultaneously, exports user-friendly interface, such as USB,
CAN and RS232 etc., facilitate system level design.Cable can be fixed on fluid line by U-shape structure easily, it is simple to product
Repair and upgrade is transformed, and saves space, and aesthetics is good.
As shown in figure 13, the curve in figure is the pressure drop and flow figure of centripetal turbine 2, under equal flow monitoring, this dress
Centripetal turbine 2 internal-and external diameter put has shunk, and shrinkage is better than traditional effusion meter.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, all should wrap in this utility model model
In enclosing.
Claims (8)
1. a modular effusion meter, it is characterised in that including:
Shell (1), is provided with fluid passage (11) in shell (1), be fixed with bearing (12) in the fluid passage (11) of shell (1),
Have multiple sector open (5) on bearing (12), in the fluid passage (11) of described shell (1), be movably installed with stifled core (4), stifled
Multiple sector open (5) is had on core (4)；
Centripetal turbine (2), centripetal turbine (2) is arranged in fluid passage (11) and around its central shaft under the impact treating fluid measured
Rotating, centripetal turbine (2) includes the middle part turbine wheel shaft (21) for frustum, and the middle part sidewall of turbine wheel shaft (21) is provided with
Two helical blades (22), the rotation direction of two helical blades (22) is identical, and centripetal turbine (2) is fitted in by described stifled core (4) to be propped up
On seat (12)；
Sensor (3), sensor (3) is arranged on upper and by detection centripetal turbine (2) the rotating speed of shell (1) and realizes flow prison
Survey.
A kind of modular effusion meter the most according to claim 1, it is characterised in that the two ends of described centripetal turbine (2) are equal
Being provided with support shaft (24), the support shaft (24) of centripetal turbine (2) side is arranged in first axis hole (13) of bearing (12), centripetal
The support shaft (24) of turbine (2) opposite side is arranged in second axis hole (41) of stifled core (4) by bearing.
A kind of modular effusion meter the most according to claim 2, it is characterised in that the helical angle of described helical blade (22)
For 30-50 °.
A kind of modular effusion meter the most according to claim 3, it is characterised in that the cone at described centripetal turbine (2) middle part
Degree is for 15-30 °.
A kind of modular effusion meter the most according to claim 4, it is characterised in that the sidewall of described shell (1) is provided with
Accommodating the case (14) of sensor (3), the top of case (14) is fastened by end cap (6).
A kind of modular effusion meter the most according to claim 5, it is characterised in that the cross section of described case (14) is ellipse
Circular.
A kind of modular effusion meter the most according to claim 6, it is characterised in that the both sides of described case (14) are equipped with
Fin (15), the cross-sectional area of fin (15) successively decreases along the flow direction treating fluid measured.
A kind of modular effusion meter the most according to claim 7, it is characterised in that described sensor (3) by cable with
External interface is connected, and cable is connected with U-shaped card, equipped with transmission circuit module on U-shaped card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620568152.6U CN205679272U (en) | 2016-06-14 | 2016-06-14 | A kind of modular effusion meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620568152.6U CN205679272U (en) | 2016-06-14 | 2016-06-14 | A kind of modular effusion meter |
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| Publication Number | Publication Date |
|---|---|
| CN205679272U true CN205679272U (en) | 2016-11-09 |
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ID=57432311
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620568152.6U Active CN205679272U (en) | 2016-06-14 | 2016-06-14 | A kind of modular effusion meter |
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| Country | Link |
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| CN (1) | CN205679272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165075A (en) * | 2017-05-18 | 2017-09-15 | 黑龙江盛世新宇高新技术开发有限公司 | Intelligent auto-changing speed limitation board and method for limiting speed |
| CN115014449A (en) * | 2022-08-09 | 2022-09-06 | 四川华能氢能科技有限公司 | Hydrogen flow detection sensor device |
-
2016
- 2016-06-14 CN CN201620568152.6U patent/CN205679272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165075A (en) * | 2017-05-18 | 2017-09-15 | 黑龙江盛世新宇高新技术开发有限公司 | Intelligent auto-changing speed limitation board and method for limiting speed |
| CN115014449A (en) * | 2022-08-09 | 2022-09-06 | 四川华能氢能科技有限公司 | Hydrogen flow detection sensor device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |