CN109099976A - A kind of vortex precession flowmeter - Google Patents
A kind of vortex precession flowmeter Download PDFInfo
- Publication number
- CN109099976A CN109099976A CN201811044230.2A CN201811044230A CN109099976A CN 109099976 A CN109099976 A CN 109099976A CN 201811044230 A CN201811044230 A CN 201811044230A CN 109099976 A CN109099976 A CN 109099976A
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- China
- Prior art keywords
- shell
- controller
- pieces
- flow
- vortex precession
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000523 sample Substances 0.000 claims abstract description 29
- 230000006698 induction Effects 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 230000003071 parasitic effect Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance 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
- G01F1/20—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 detection of dynamic effects of the flow
- G01F1/32—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 detection of dynamic effects of the flow using swirl flowmeters
Abstract
The present invention relates to a kind of vortex precession flowmeters, including flowmeter bodies and controller, the flowmeter bodies include shell, pipe cyclone, it is set in shell and for detecting the flow probe by the gas flow of shell and being set to the switch valve in shell and for controlling flowmeter bodies opening and closing, the shell includes air inlet and air outlet, the pipe cyclone is set at the air inlet of the shell, the flow probe and switch valve are electrically connected with the controller respectively, chamber resettling is equipped in the shell, the flow probe is set in the chamber resettling, the flow probe includes two pieces of fixed polar plates and one piece of movable polar plate being set between two pieces of fixed polar plates, two pieces of fixed polar plates and the movable plate electrode are arranged in parallel.A kind of vortex precession flowmeter provided by the present invention can effectively reduce the influence of parasitic capacitance, improve the overall performance of flowmeter.
Description
Technical field
The present invention relates to field of flow meters, and in particular to a kind of vortex precession flowmeter.
Background technique
It is various that the industries measurements such as petroleum, chemical industry, electric power, metallurgy, city gas supply are now widely used for into vortex flowmeter
The features such as gas flow has range of flow wide, and structure is simple, stain resistance, its working principle is that utilizing the vortex precession of fluid
Phenomenon carries out flow measurement.Currently, well known precession spiral flowmeter (or vortex precession flow sensor) is equal in the world
Using single piezo-electric crystal (or condenser type) sensor come measuring medium flow velocity frequency signal, capacitor sensor structure is simple, divides
Resolution is high, but the presence of parasitic capacitance has seriously affected its working performance.
Summary of the invention
The present invention provides vortex precession flowmeters, can effectively reduce the influence of parasitic capacitance, improve the entirety of flowmeter
Performance.
To achieve the above object, the present invention provides a kind of vortex precession flowmeter, including flowmeter bodies and controller,
The flowmeter bodies include shell, pipe cyclone, are set in shell and for detecting the flow for passing through the gas flow of shell
Pop one's head in and be set to the switch valve in shell and for controlling flowmeter bodies opening and closing, the shell include air inlet and
Gas outlet, the pipe cyclone are set at the air inlet of the shell, the flow probe and switch valve respectively with the control
Device electrical connection, the shell is interior to be equipped with chamber resettling, and the flow probe is set in the chamber resettling, the flow probe
Including two pieces of fixed polar plates and one piece of movable polar plate being set between two pieces of fixed polar plates, two pieces of fixed polar plates and described
Movable plate electrode is arranged in parallel.
Preferably, the flow probe further includes that the section that is made of one piece of horizontal version and two pieces of risers is " U "-shaped
Pedestal, two pieces of fixed polar plates are fixedly installed on two medial surfaces of the pedestal, and the movable polar plate is set to two
The middle position of fixed polar plate described in block, the movable plate electrode are connect with the shell by suspension and can be close to or far from any one
The movement of fixed polar plate described in block.
Preferably, the inner wall of the pipe cyclone and the shell is rotatably connected, and the pipe cyclone includes leading core
With multiple circumferentially uniformly distributed helical blades along the side wall for leading core.
Preferably, the flow probe is set between the pipe cyclone and switch valve, is set at the gas outlet
There is rear rectifier, the rear rectifier is electrically connected with the controller.
Preferably, the controller includes opening or closing the flowmeter bodies for controlling the switch valve
Control module and be set to the surface of the controller and for swiping the card or the induction zone of plug-in card, the induction zone and the control
Device electrical connection processed.
Preferably, the switch valve is globe type of control valve, and the inner wall of the globe type of control valve and the shell can
Rotation connection.
Preferably, the controller further includes display screen.
Preferably, the controller further include for manually control that the switch valve opens and closes it is urgent by
Button.
Preferably, the steam-flow meter of the pre-payment further includes being set in the shell and for detecting shell
The pressure sensor of the pressure of internal steam, the pressure sensor are electrically connected with the controller.
Preferably, the steam-flow meter of the pre-payment further includes being set in the shell and for detecting shell
The temperature sensor of the temperature of internal steam, the temperature sensor are electrically connected with the controller.
A kind of vortex precession flowmeter provided by above-mentioned technical proposal carries out flow survey to the gas for being passed through flowmeter
The process of amount are as follows: gas flows through pipe cyclone from air inlet entrance and is converted into powerful gyrate gas, then flows through flow spy
Head detects the flow of gyrate gas, and the present invention, which passes through, will test the accommodating cavity popped one's head in and be set to positioned at enclosure interior
In chamber room, realizes and further lead to the extraneous effect being relatively isolated, the influence to effectively reduce parasitic capacitance
One movable plate electrode of setting between two fixed polar plates is crossed, when detecting to flow, the movable plate electrode is solid with one of them
The polar moment of fixed plate reduces and the polar moment of another fixed polar plate increases, forms differential output, to realize the inspection to flow
Survey while can further decrease the influence of parasitic capacitance.
Detailed description of the invention
Fig. 1 is internal structure cross-sectional view of the invention；
Fig. 2 is the structural schematic diagram of flow sensor.
Wherein: 1, induction zone；2, danger button；3, shell；4, rear rectifier；5, globe type of control valve；6, pipe cyclone；7, it flows
Amount probe；8, display screen；9, controller；71, suspension；72, fixed polar plate；73, movable plate electrode；74, pedestal.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
It is as shown in Figs. 1-2 a kind of vortex precession flowmeter provided by the present invention, including flowmeter bodies and controller
9, the flowmeter bodies include shell 3, pipe cyclone 6, are set in shell 3 and for detecting the gas flow by shell 3
Flow probe 7 and be set to the switch valve in shell 3 and for controlling flowmeter bodies opening and closing, the shell 3 wraps
Air inlet and air outlet are included, the pipe cyclone 6 is set at the air inlet of the shell 3, the flow probe 7 and switch valve point
It is not electrically connected with the controller 9, is equipped with chamber resettling in the shell 3, the flow probe 7 is set to the chamber resettling
Interior, the flow probe 7 includes two pieces of fixed polar plates 72 and one piece of movable polar plate 73 being set between two pieces of fixed polar plates 72,
Two pieces of fixed polar plates 72 and the movable plate electrode 73 are arranged in parallel.Specifically, a kind of precession rotation provided by the present embodiment
Vortex meter carries out the process of flow measurement to the gas for being passed through flowmeter are as follows: gas enters from air inlet flows through 6 turns of pipe cyclone
Powerful gyrate gas is turned to, flow probe 7 is then flowed through and the flow of gyrate gas is detected, the present invention is logical
Crossing will test in chamber resettling's chamber for being set to positioned at shell 3 inside of probe, realize the effect being relatively isolated with the external world, from
And the influence of parasitic capacitance is effectively reduced, and further, by the way that a movable plate electrode 73 is arranged between two fixed polar plates 72,
When detecting to flow, the polar moment of the movable plate electrode 73 and one of fixed polar plate 72 reduces and another fixed pole
The polar moment of plate 72 increases, forms differential output, to realize the detection to flow, can further decrease parasitic capacitance simultaneously
It influences.
In the present embodiment, the flow probe 7 further includes that the section that is made of one piece of horizontal version and two pieces of risers is " U "-shaped
Pedestal 74, two pieces of fixed polar plates 72 are fixedly installed on two medial surfaces of the pedestal 74, and the movable polar plate 73 is set
It is placed in the middle position of two pieces of fixed polar plates 72, the movable plate electrode 73 is connect by suspension 71 with the shell 3 and reliable
It is moved close or remote from any one piece of fixed polar plate 72.Specifically, when tested plane has certain inclination angle, since gravity is made
With, movable plate electrode 73 remains vertical state, reduces with the pole span of a fixed polar plate 72, and with another plate electrode away from increase, shape
At differential output, since surveyed change of pitch angle is minimum, it is believed that movable plate electrode 73 is parallel always with fixed polar plate 72, and air-flow passes through
When, Capacitive Flow probe 7 will be exported continuously, to measure the flow value for flowing through the gas of flowmeter.
Further, since the gas being passed through in shell 3 is not necessarily under mark condition the (gas parameter under mark condition are as follows: pressure
Power is 101.325kPa, and temperature is 0 DEG C), to make to mark the stream under condition using flowmeter institute's measurement of discharge provided by the present embodiment
Magnitude, in the present embodiment, the steam-flow meter of the pre-payment further includes being set in the shell 3 and for detecting shell 3
The pressure sensor of the pressure of interior steam, the pressure sensor are electrically connected with the controller 9, the steam stream of the pre-payment
Meter further includes the temperature sensor for being set in the shell 3 and be used to detect the temperature of steam in shell 3, and the temperature passes
Sensor is electrically connected with the controller 9, detects the reality of the gas inside shell 3 respectively by pressure sensor and temperature sensor
Border pressure and temperature, and will test result and feed back to controller 9, controller 9 is conversed automatically and is passed through inside shell 3 in the case where marking condition
The flow value of gas.
In the present embodiment, the inner wall of the pipe cyclone 6 and the shell 3 is rotatably connected, and the pipe cyclone 6 includes leading core
With multiple circumferentially uniformly distributed helical blades along the side wall for leading core, realized by pipe cyclone 6 to shell will be entered from air inlet
The powerful gyrate gas that is converted into of the gas of body 3 effectively raises so that the signal that flow probe 7 obtains is stronger
Flow probe 7 has been correspondingly improved range ability to the measurement lower limit of fluid.
Further, the flow probe 7 is set between the pipe cyclone 6 and switch valve, is equipped at the gas outlet
Rectifier 4 afterwards, the rear rectifier 4 is electrically connected with the controller 9, by rectifier 4 after setting, so that gas in shell 3
It is relatively isolated with the ambient atmos of gas outlet one end and then guarantees the gas between the pipe cyclone 6 and rear rectifier 4 in vortex
Shape.
Further, the controller 9 includes opening or closing the flowmeter bodies for controlling the switch valve
Control module and be set to the surface of the controller 9 and for swiping the card or the induction zone 1 of plug-in card, the induction zone 1 and institute
State the electrical connection of controller 9.When user needs using gas, first need to be stuck in institute using the gas flow for prestoring certain amount of money
The card slot that induction zone 1 swipes the card or gas flow card insertion is entered to induction zone 1 is stated, then control module controls the switch valve and opens
Beginning, control module is used according to the remaining amount of money in the gas flow card being used for for being equipped with corresponding flow gas supply simultaneously
The amount upper limit, the flow probe 7 detects the flow for flowing through the gas of flowmeter, when the gas flow for flowing through flowmeter reaches institute
When stating the amount upper limit that flow uses, the control module automatically controls the switch valve and closes, while controller 9 reminds user
Sorry, your ticket has not enough value in card.The above process, user need to first swipe the card and use gas afterwards, and flowmeter is from dynamic circuit breaker after remaining sum use in subscriber card
Gas reduces the input of manpower and material resources simultaneously so that it is guaranteed that the theory of " first paying the fees, afterwards with gas " is achieved.
In the present embodiment, the switch valve is globe type of control valve 5, and the inner wall of the globe type of control valve 5 and the shell 3 can
It is rotatablely connected and is set between the flow probe 7 and gas outlet, by selecting globe type of control valve 5 can be with the inner wall of shell 3
The problem of being bonded completely, preventing gas leakage.
Further, the controller 9 further includes display screen 8, the display screen 8 can Dynamically Announce residue can gas consumption
With the information such as residual amount and all measurement parameters, when can gas consumption be zero (i.e. the amount of money is zero) when, the flowmeter from
Dynamic circuit breaker gas.To further increase the safety comprising the flowmeter, the controller 9 further includes for manually controlling the switch
The danger button 2 that valve opens and closes can be manually controlled when emergency (such as gas leakage) occurs by the danger button 2
The switch valve opens and closes flowmeter.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of vortex precession flowmeter, which is characterized in that including flowmeter bodies and controller, the flowmeter bodies include
Shell, pipe cyclone are set in shell and for detecting the flow probe by the gas flow of shell and being set in shell
And the switch valve for controlling flowmeter bodies opening and closing, the shell includes air inlet and air outlet, the pipe cyclone
It is set at the air inlet of the shell, the flow probe and switch valve are electrically connected with the controller respectively, the shell
Interior to be equipped with chamber resettling, the flow probe is set in the chamber resettling, and the flow probe includes two pieces of fixed polar plates
And one piece of movable polar plate being set between two pieces of fixed polar plates, two pieces of fixed polar plates with the movable plate electrode is parallel sets
It sets.
2. vortex precession flowmeter according to claim 1, which is characterized in that the flow probe further includes by one piece of cross
The " U "-shaped pedestal in the section of version and two pieces of risers composition, two pieces of fixed polar plates are fixedly installed on two of the pedestal
On medial surface, the movable polar plate is set to the middle position of two pieces of fixed polar plates, and the movable plate electrode passes through suspension and institute
It states shell connection and can be moved close to or far from any one piece of fixed polar plate.
3. vortex precession flowmeter according to claim 1, which is characterized in that the inner wall of the pipe cyclone and the shell
It is rotatably connected, the pipe cyclone includes leading core and multiple circumferentially uniformly distributed helical blades along the side wall for leading core.
4. vortex precession flowmeter according to claim 1, which is characterized in that the flow probe is set to described rise and revolves
Between device and switch valve, rear rectifier is equipped at the gas outlet, the rear rectifier is electrically connected with the controller.
5. vortex precession flowmeter according to claim 1, which is characterized in that the controller includes described for controlling
Switch valve open or close the control module of the flowmeter bodies and be set to the surface of the controller and for swiping the card or
The induction zone of plug-in card, the induction zone are electrically connected with the controller.
6. vortex precession flowmeter according to claim 1, which is characterized in that the switch valve is globe type of control valve, institute
The inner wall for stating globe type of control valve and the shell is rotatably connected.
7. vortex precession flowmeter according to claim 1, which is characterized in that the controller further includes display screen.
8. vortex precession flowmeter according to claim 1, which is characterized in that the controller further includes for controlling manually
Make the danger button that the switch valve opens and closes.
9. vortex precession flowmeter according to claim 1, which is characterized in that the steam-flow meter of the pre-payment also wraps
Include the pressure sensor being set in the shell and for detecting the pressure of steam in shell, the pressure sensor with it is described
Controller electrical connection.
10. vortex precession flowmeter according to claim 1, which is characterized in that the steam-flow meter of the pre-payment is also
Including being set to the temperature sensor in the shell and for detecting the temperature of steam in shell, the temperature sensor and institute
State controller electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044230.2A CN109099976A (en) | 2018-09-07 | 2018-09-07 | A kind of vortex precession flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044230.2A CN109099976A (en) | 2018-09-07 | 2018-09-07 | A kind of vortex precession flowmeter |
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| Publication Number | Publication Date |
|---|---|
| CN109099976A true CN109099976A (en) | 2018-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811044230.2A Pending CN109099976A (en) | 2018-09-07 | 2018-09-07 | A kind of vortex precession flowmeter |
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| Country | Link |
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| CN (1) | CN109099976A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693098A (en) * | 2019-03-15 | 2020-09-22 | 江苏微浪电子科技有限公司 | Precession flowmeter of reinforcing swirl intensity |
| CN112325957A (en) * | 2020-11-10 | 2021-02-05 | 江苏微浪电子科技有限公司 | Double-parameter precession mass flowmeter for measuring variable component gas |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693098A (en) * | 2019-03-15 | 2020-09-22 | 江苏微浪电子科技有限公司 | Precession flowmeter of reinforcing swirl intensity |
| CN112325957A (en) * | 2020-11-10 | 2021-02-05 | 江苏微浪电子科技有限公司 | Double-parameter precession mass flowmeter for measuring variable component gas |
| CN112325957B (en) * | 2020-11-10 | 2024-01-26 | 江苏微浪电子科技有限公司 | Double-parameter precession mass flowmeter for measuring component-variable gas |
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