CN208805236U - A kind of redundance type vortex precession flowmeter - Google Patents
A kind of redundance type vortex precession flowmeter Download PDFInfo
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- CN208805236U CN208805236U CN201821605824.1U CN201821605824U CN208805236U CN 208805236 U CN208805236 U CN 208805236U CN 201821605824 U CN201821605824 U CN 201821605824U CN 208805236 U CN208805236 U CN 208805236U
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Abstract
The utility model relates to a kind of redundance type vortex precession flowmeters, including flowmeter bodies, first controller and second controller, the flowmeter bodies include shell, pipe cyclone, it is set to the switch valve in shell and for controlling flowmeter bodies opening and closing, first flow probe and second flow probe, the first flow probe and second flow probe are respectively arranged in shell and the detectable gas flow by shell, the shell includes air inlet and air outlet, the pipe cyclone is set at the air inlet of the shell, the switch valve respectively with first controller, second controller electrical connection, the first flow probe is electrically connected with first controller, the second flow probe is electrically connected with the second controller.Redundance type vortex precession flowmeter provided by the utility model, it is ensured that when the flowmeter or controller of flowmeter break down, the work of flow measurement can be still normally completed, meanwhile, the overall performance of flowmeter can be improved.
Description
Technical field
The utility model relates to field of flow meters, and in particular to a kind of redundance type 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.
Utility model content
The utility model provides redundance type vortex precession flowmeter, it is ensured that sends out in the flowmeter or controller of flowmeter
When raw failure, the work of flow measurement can be still normally completed, meanwhile, it can effectively reduce the influence of parasitic capacitance, improve flowmeter
Overall performance.
To achieve the above object, the utility model provides a kind of redundance type vortex precession flowmeter, including flowmeter sheet
Body, the first controller and second controller, the flowmeter bodies include shell, pipe cyclone, are set in shell and for controlling
Switch valve, first flow probe and the second flow probe that flowmeter bodies processed open and close, the first flow probe and
Second flow probe is respectively arranged in the shell and the detectable gas flow by shell, and the shell includes air inlet
Mouthful and gas outlet, the pipe cyclone be set at the air inlet of the shell, the switch valve respectively with first controller,
Second controller electrical connection, the first flow probe are electrically connected with first controller, the second flow probe and institute
Second controller electrical connection is stated, is set in the shell there are two the chamber resettling being oppositely arranged, the first flow probe and the
Two flow probes are respectively arranged in two chamber resettling, the knot of the first flow probe and second flow probe
Structure is identical and 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 fixations
Pole plate and the movable plate electrode are arranged in parallel.
Preferably, the first flow probe further includes being in by the section that one piece of horizontal version and two pieces of risers form
The pedestal of " u "-shaped, two pieces of fixed polar plates are fixedly installed on two medial surfaces of the pedestal, the movable polar plate setting
In the middle position of two pieces of fixed polar plates, the movable plate electrode by suspension connect with the shell and can close to or far from times
The fixed polar plate movement of one piece of meaning.
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 first flow probe and second flow probe are all set in the pipe cyclone and switch valve
Between, rear rectifier is equipped at the gas outlet, the rear rectifier is electrically connected with first controller, second controller respectively
It connects.
Preferably, first controller is identical as the second controller structure and includes for controlling
It states switch valve and opens or closes the control module of the flowmeter bodies and for swiping the card or the induction zone of plug-in card.
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, first controller further includes display screen.
Preferably, first controller further includes for manually controlling the tight of the switch valve opening and closing
Anxious button.
Preferably, the redundance type vortex precession flowmeter further includes being set in the shell and for detecting
The pressure sensor of the pressure of steam in shell, the pressure sensor are electric with first controller, second controller respectively
Connection.
Preferably, the redundance type vortex precession flowmeter further includes being set in the shell and for detecting
The temperature sensor of the temperature of steam in shell, the temperature sensor are electric with first controller, second controller respectively
Connection.
A kind of redundance type vortex precession flowmeter provided by above-mentioned technical proposal carries out the gas for being passed through flowmeter
The process of flow measurement are as follows: gas flows through pipe cyclone from air inlet entrance and is converted into powerful gyrate gas, then flows through
First flow probe detects the flow of gyrate gas, and the utility model is set to by will test probe positioned at shell
In chamber resettling's chamber in internal portion, realize and the extraneous effect being relatively isolated, the shadow to effectively reduce parasitic capacitance
It rings, further, by the way that a movable plate electrode, when detecting to flow, the dynamic pole are arranged between two fixed polar plates
The polar moment of plate and one of fixed polar plate reduces and the polar moment of another fixed polar plate increases, forms differential output, thus real
The influence that parasitic capacitance can be now further decreased to the detection of flow, simultaneously, in addition, by being set in a flowmeter bodies
The flow sensor and controller for setting two groups of autonomous workings, when any one group of flow sensor or controller when something goes wrong,
Another group of flow sensor and controller can complete independently flow measurement work, to guarantee the conevying efficiency of transport pipeline.
Detailed description of the invention
Fig. 1 is the internal structure cross-sectional view of the utility model；
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,
One flow probe；8, display screen；9, the first controller；10, second flow is popped one's head in；11, second controller；71, suspension；72, solid
Fixed plate；73, movable plate electrode；74, pedestal.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
It is as shown in Figs. 1-2 a kind of redundance type vortex precession flowmeter provided by the utility model, including flowmeter sheet
Body, the first controller 9 and second controller 11, the flowmeter bodies include shell 3, pipe cyclone 6, are set in shell 3 simultaneously
It is described first-class for controlling the switch valve, first flow probe 7 and second flow probe 10 of flowmeter bodies opening and closing
Amount probe 7 and second flow probe 10 are respectively arranged in the shell 3 and the detectable gas flow by shell 3, institute
Stating shell 3 includes air inlet and air outlet, and the pipe cyclone 6 is set at the air inlet of the shell 3, the switch valve difference
It is electrically connected with first controller 9, second controller 11, the first flow probe 7 is electrically connected with first controller 9
Connect, second flow probe 10 is electrically connected with the second controller 11, set in the shell 3 there are two the appearance that is oppositely arranged
Chamber is set, the first flow probe 7 and second flow probe 10 are respectively arranged in two chamber resettling, and described first
Flow probe 7 is identical as the structure of second flow probe 10 and includes that two pieces of fixed polar plates 72 and one piece are set to two pieces
Movable polar plate 73 between fixed polar plate 72, two pieces of fixed polar plates 72 and the movable plate electrode 73 are arranged in parallel.Specifically,
A kind of redundance type vortex precession flowmeter provided by the present embodiment carries out the process of flow measurement to the gas for being passed through flowmeter
Are as follows: gas flows through pipe cyclone 6 from air inlet entrance and is converted into powerful gyrate gas, then flows through first flow probe 7
The flow of gyrate gas is detected, the utility model, which passes through, will test the appearance that probe is set to inside shell 3
It sets in chamber chamber, realizes with the extraneous effect being relatively isolated, to effectively reduce the influence of parasitic capacitance, further
Ground, by the way that a movable plate electrode 73 is arranged between two fixed polar plates 72, when being detected to flow, the movable plate electrode 73 with
The polar moment of one of fixed polar plate 72 reduces and the polar moment of another fixed polar plate 72 increases, forms differential output, thus real
The influence that parasitic capacitance can be now further decreased to the detection of flow, simultaneously, in addition, by being set in a flowmeter bodies
The flow sensor and controller for setting two groups of autonomous workings, when any one group of flow sensor or controller when something goes wrong,
Another group of flow sensor and controller can complete independently flow measurement work, to guarantee the conevying efficiency of transport pipeline.
In the present embodiment, it is in " U " that the first flow probe 7, which further includes the section being made of one piece of horizontal version and two pieces of risers,
The pedestal 74 of shape, two pieces of fixed polar plates 72 are fixedly installed on two medial surfaces of the pedestal 74, the movable polar plate
73 are set to the middle position of two pieces of fixed polar plates 72, and the movable plate electrode 73 is connect simultaneously by suspension 71 with the shell 3
It can be moved close to or far from any one piece of fixed polar plate 72.Specifically, when tested plane has certain inclination angle, due to gravity
Effect, 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,
Differential output is formed, 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, capacitor first 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 redundance type vortex precession flowmeter further includes being set in the shell 3 and for detecting shell
The pressure sensor of the pressure of steam in 3, the pressure sensor are electric with first controller 9, second controller 11 respectively
Connection, the redundance type vortex precession flowmeter further include the temperature for being set in the shell 3 and be used to detect steam in shell 3
The temperature sensor of degree, the temperature sensor is electrically connected with first controller 9, second controller 11 respectively, when first
When controller 9 works, the actual pressure and temperature of the gas inside shell 3 are detected respectively by pressure sensor and temperature sensor
Degree, and will test result and feed back to the first controller 9, the first controller 9 converses automatically is passed through gas inside shell 3 in the case where marking condition
The flow value of body.
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 gas of body 3 is converted into powerful gyrate gas, so that the signal that first flow probe 7 obtains is stronger, effectively mentions
High first flow is popped one's head in the measurement lower limits of 7 pairs of fluids, and range ability has been correspondingly improved.
Further, the first flow probe 7 and second flow probe 10 are all set in the pipe cyclone 6 and switch valve
Between, at the gas outlet be equipped with rear rectifier 4, it is described after rectifier 4 respectively with first controller 9, second controller
11 electrical connections, by rectifier 4 after setting, so that gas and the ambient atmos of gas outlet one end are relatively isolated, in turn in shell 3
Guarantee the gas between the pipe cyclone 6 and rear rectifier 4 in swirl shape.
Further, first controller 9 is identical as 11 structure of second controller and includes for controlling
The switch valve opens or closes the control module of the flowmeter bodies and for swiping the card or the induction zone 1 of plug-in card.Work as user
When needing using gas, first needs to be stuck in the induction zone 1 using the gas flow for prestoring certain amount of money and swipe the card or by gas
Flow card insertion enters the card slot of induction zone 1, and then the control module control switch valve starts gas supply control module root simultaneously
According to for gas flow card in the remaining amount of money be the amount upper limit used for being equipped with corresponding flow, when the first controller
When 9 work, 7 detection of first flow probe flows through the flow of the gas of flowmeter, when the gas flow for flowing through flowmeter reaches
When the amount upper limit used to the flow, the control module automatically controls the switch valve and closes, while the first controller 9
Sorry, your ticket has not enough value in prompting subscriber card.The above process, user need to first swipe the card and use gas afterwards, the flow after remaining sum use in subscriber card
Meter is automatically shut down the gas piping, so that it is guaranteed that the theory of " first paying the fees, afterwards with gas " is achieved, is reduced the input of manpower and material resources simultaneously.
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 first flow probe 7 and gas outlet, by selecting globe type of control valve 5 can be with shell 3
The problem of inner wall is bonded completely, prevents gas leakage.
Further, first controller 9 further includes display screen 8, the display screen 8 can Dynamically Announce residue it is available
The information such as tolerance and residual amount and all measurement parameters, when can gas consumption be zero (i.e. the amount of money is zero) when, the flow
Meter is automatically shut down the gas piping.To further increase the safety comprising the flowmeter, first controller 9 further includes for manually controlling
The danger button 2 that the switch valve opens and closes, when emergency (such as gas leakage) occurs, can by the danger button 2,
It manually controls the switch valve and opens and closes flowmeter.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (10)
1. a kind of redundance type vortex precession flowmeter, which is characterized in that including flowmeter bodies, the first controller and the second control
Device, the flowmeter bodies include shell, pipe cyclone, are set in shell and for controlling what flowmeter bodies opened and closed
Switch valve, first flow probe and second flow probe, the first flow probe and second flow probe are respectively arranged at institute
It states in shell and the detectable gas flow by shell, the shell includes air inlet and air outlet, and the pipe cyclone is set
It being placed at the air inlet of the shell, the switch valve is electrically connected with first controller, second controller respectively, and described
One flow probe is electrically connected with first controller, and the second flow probe is electrically connected with the second controller, described
It is set in shell there are two the chamber resettling being oppositely arranged, the first flow probe and second flow probe are respectively arranged at two
In the chamber resettling, the first flow probe is identical as the structure that the second flow is popped one's head in and includes two pieces of fixed poles
Plate 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. redundance type vortex precession flowmeter according to claim 1, which is characterized in that the first flow probe also wraps
The " U "-shaped pedestal in the section being made of one piece of horizontal version and two pieces of risers is included, two pieces of fixed polar plates are fixedly installed on described
On two medial surfaces of pedestal, the movable polar plate is set to the middle position of two pieces of fixed polar plates, and the movable plate electrode is logical
Suspension is crossed to connect and can be moved close to or far from any one piece of fixed polar plate with the shell.
3. redundance type vortex precession flowmeter according to claim 1, which is characterized in that the pipe cyclone and the shell
Inner wall be rotatably connected, the pipe cyclone includes leading core and multiple circumferentially uniformly distributed helical-blades along the side wall for leading core
Piece.
4. redundance type vortex precession flowmeter according to claim 1, which is characterized in that first flow probe and the
Two flow probes are all set between the pipe cyclone and switch valve, and rear rectifier is equipped at the gas outlet, is rectified after described
Device is electrically connected with first controller, second controller respectively.
5. redundance type vortex precession flowmeter according to claim 1, which is characterized in that first controller with it is described
Second controller structure is identical and includes the control mould that the flowmeter bodies are opened or closed for controlling the switch valve
Block and for swiping the card or the induction zone of plug-in card.
6. redundance type vortex precession flowmeter according to claim 1, which is characterized in that the switch valve is spherical control
The inner wall of valve, the globe type of control valve and the shell is rotatably connected.
7. redundance type vortex precession flowmeter according to claim 1, which is characterized in that first controller further includes
Display screen.
8. redundance type vortex precession flowmeter according to claim 1, which is characterized in that first controller further includes
The danger button opened and closed for manually controlling the switch valve.
9. redundance type vortex precession flowmeter according to claim 1, which is characterized in that the redundance type precession vortex stream
Meter further includes the pressure sensor being set in the shell and for detecting the pressure of steam in shell, the pressure sensing
Device is electrically connected with first controller, second controller respectively.
10. redundance type vortex precession flowmeter according to claim 1, which is characterized in that the redundance type precession vortex
Flowmeter further includes the temperature sensor being set in the shell and for detecting the temperature of steam in shell, and the temperature passes
Sensor is electrically connected with first controller, second controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605824.1U CN208805236U (en) | 2018-09-29 | 2018-09-29 | A kind of redundance type vortex precession flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605824.1U CN208805236U (en) | 2018-09-29 | 2018-09-29 | A kind of redundance type vortex precession flowmeter |
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| Publication Number | Publication Date |
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| CN208805236U true CN208805236U (en) | 2019-04-30 |
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| CN201821605824.1U Active CN208805236U (en) | 2018-09-29 | 2018-09-29 | A kind of redundance type vortex precession flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-09-29 CN CN201821605824.1U patent/CN208805236U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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