Valve and electromagnetic flowmeter integrated apparatus and application thereof
Technical field
Valve of the present invention and electromagnetic flowmeter integrated apparatus, relate to electromagnetic type flow meter field, particularly to
The metering of heat death theory, water, Sewage metering etc. need battery powered flow measurement and flow-control field.The present invention is applicable to family and uses
Calorimeter, cold meter, water meter etc., its principle and structure are also applied for other general necks needing flow measurement and flow-control
Territory.
Background technology
Electromagnetic flowmeter is a kind of flow measurement instrument based on faraday electromagnetic induction principle, and its ultimate principle is: when
With conducting medium fluid by magnetic field time, fluid cutting magnetic line, in the vertical direction in magnetic field produce induced potential, sense
Answer the amplitude of electromotive force and the flow velocity of fluid to be directly proportional, thus obtain the flow velocity of fluid, and then obtain the flow of fluid.In order to produce
Magnetic field, is measuring around pipe, is being provided with magnet exciting coil, and produced magnetic field passes fluid, thus produces sensing in a fluid
Electromotive force, installs electrode, can measure the size of induced potential in the both positive and negative polarity position of induced potential.Electromagnetic flowmeter is surveyed at flow
Amount is widely used, have that certainty of measurement is high, the linearity is good, measure pipe in without advantages such as structuring, antipollution things.
Valve is the device for controlling rate of flow of fluid, has ball valve, butterfly valve, gate valve etc. according to the difference of version, main
Wanting parts to include spool and valve body, spool is positioned at valve body, has a through hole, rotatable or mobile, thus realize valve open and
Close.
The electromagnetic flowmeter of prior art, and the electromagnetic flowmeter of band valve, it is generally the case that magnet exciting coil is installed
Measuring around pipe, generally two coils are installed relative to position, or a coil and a magnetic core are installed relative to position,
Magnetic field is passed through and whole is measured pipe, and the biggest magnetic circuit of bore is the longest, thus exciting power is the biggest, it is impossible to meets battery and the low-power consumption such as powers
The application scenario of application scenario, particularly calorimeter.Prior art also has and is reduced by measurement pipe diameter, shortens magnetic circuit, and reduction is encouraged
The method of magnetic power consumption, it is big that the method causes measuring pipe pipeline crushing, is not suitable for the application scenario of calorimeter.
The band valve flow meter of prior art, typically splits valve and effusion meter.Along with city central heating heat death theory
Development, invent the electromagnetic type calorimeter of the low-power consumption excitation of a kind of band valve, solve the electromagnetic type heat meter battery of band valve
Powerup issue, seems more and more important in heat metering.Prior art, yet there are no and increase magnetic conductive board in measuring pipe, from
And reduce exciting power, it is achieved valve and the method for electromagnetic flowmeter integration.
In sum, the electromagnetic flowmeter of the band valve of prior art there is problems in that
1) spool and measuring pipe of electromagnetic flow meter split, and volume is big;
2) excitation field passes through whole fluid cross-section, and excitation distribution efficiency is low;
3) measure pipe undergauge ratio big, cause pipeline crushing big;
4) the measurement pipe of larger caliber, exciting power is bigger.
Summary of the invention
It is an object of the invention to provide a kind of valve and electromagnetic flowmeter integrated apparatus and application thereof, solve existing skill
The problem that the electromagnetic type flow meter power consumption of art band valve is big, particularly solves electromagnetic type family calorimeter, the battery of family water meter
Powerup issue.
A kind of valve and electromagnetic flowmeter integrated apparatus, described device includes valve body, spool and valve gap;Valve body and valve gap
Forming top and the cavity of horizontal opening, spool is within the cavity;Valve body includes measuring pipe, coil, and coil is positioned under spool
Side;Spool is provided with and connects the horizontal through hole measuring pipe horizontal opening, including magnetic conductive board, the first electrode, the second electrode, spool level
Through hole is divided into upper through hole and lower through-hole, the first electrode and the second electrode by magnetic conductive board and lays respectively at the left and right sides of lower through-hole.
Described valve body is provided with magnetic core, and magnetic core is positioned at the inside of coil, and magnetic core is magnetic conductor.
Described valve body, is further provided with U-shaped steel bushing, and coil is positioned at the U-shaped cavity of U-shaped steel bushing, and U-shaped steel bushing is magnetic conductance
Body.
Described spool, comprises the first lead-in wire, the second lead-in wire, circuit board further, and the first electrode is connected by the first lead-in wire
Circuit board, the second electrode connects circuit board by the second lead-in wire.
Described first lead-in wire and the second lead-in wire, use conductive plastic material manufacture.
Described valve body further includes skeleton, and described coil is around in the I-shaped groove of skeleton.
The left and right sides of described U-shaped steel bushing is higher than the bottom of spool lower through-hole.
Described first electrode and the second electrode, be positioned at position on the lower side in lower through-hole.
A kind of described valve and electromagnetic flowmeter integrated apparatus are for the calorimeter of band valve, cold meter, water meter.
The calorimeter of described band valve is balance calorimeter.
The invention provides valve and the arrangement of electromagnetic flowmeter integrated apparatus.The present invention is by electromagnetic flowmeter
Electrode, lead member are built in spool so that spool and the integration of electromagnetic flowmeter sensing element, decrease volume.
According to a further aspect in the invention, it is provided that a kind of intensifier electrode position magnetic field intensity, thus improve Distribution of Magnetic Field
The method of efficiency.In prior art, measuring and be disposed with coil above and below pipe, both sides are disposed with electrode, and coil produces
Excitation field passes through whole fluid cross-section, thus reduces Distribution of Magnetic Field efficiency.The present invention increases by one in the through hole of spool
The magnetic conductive board of magnetic conduction, is divided into upper through hole and lower through-hole by the through hole of spool, and Distribution of Magnetic Field measures the lower through-hole of electrode having, upper logical
Hole is distributed magnetic field hardly, thus improves the distribution efficiency of excitation field.
According to a further aspect in the invention, it is provided that the electromagnetic flow sensor method for arranging of a kind of low pipeline crushing.
In prior art, in order to reach necessary exciting power, the caliber measuring pipe is narrowed down to certain proportion, adds the pressure of pipeline
Power is lost.The Distribution of Magnetic Field that the present invention measures in pipe has substantially no effect on the distribution in magnetic field in lower through-hole, the sectional area of upper through hole, from
And without pipeline diameter is reduced.
According to a further aspect in the invention, it is provided that a kind of low-power consumption excitation layout side measuring pipe for different-diameter
Method.In prior art, measuring and be disposed with coil above and below pipe, both sides are disposed with electrode, measure pipe diameter the biggest institute cloth
The coil put is the biggest, and exciting power is the biggest.The through hole of spool is divided into upper through hole and lower through-hole by the present invention, and excitation field only acts on
In lower through-hole, the sectional area of upper through hole can change with the diameter measuring pipe, thus adapt to the measurement pipe of different-diameter, excitation
Coil will not change with the diameter change measuring pipe, thus provides the exciting method of low-power consumption.
Compared with prior art, the invention have the advantages that
1) spool and the pipe integrated structure of measurement, volume is little;
2) excitation field distribution efficiency is high;
3) the pipeline crushing measuring pipe is little;
4) the measurement pipe of different-diameter all realizes low-power consumption excitation.
Arbitrary technical scheme of the present invention differs and the most all realizes above beneficial effect.
Accompanying drawing explanation
Fig. 1 is valve of the present invention and the profile of electromagnetic flowmeter integrated apparatus embodiment;
In figure, spool 1, magnetic conductive board the 2, first electrode 3a, the second electrode 3b, the first lead-in wire 4a, the second lead-in wire 4b, circuit board
5, pipe 6, valve gap 7, magnetic core 8, coil 9, U-shaped steel bushing 10, skeleton 11 are measured.
Fig. 2 is valve of the present invention and the A-A profile of electromagnetic flowmeter integrated apparatus embodiment;
Fig. 3 is to constitute valve of the present invention and the profile of electromagnetic flowmeter another embodiment of integrated apparatus;
In figure, spool 1, magnetic conductive board the 2, first electrode 3a, the second electrode 3b, the first lead-in wire 4a, the second lead-in wire 4b, circuit board
5, pipe 6, valve gap 7, W-shaped steel set 8, coil 9, skeleton 11 are measured.
Detailed description of the invention
See Fig. 1, for valve of the present invention and the profile of electromagnetic flowmeter integrated apparatus embodiment, including spool list
Unit, valve body unit and Energizing unit.
Wherein spool unit includes spool 1, magnetic conductive board the 2, first electrode 3a, the second electrode 3b, the first lead-in wire 4a, second draws
Line 4b, circuit board 5.Spool 1 uses plastic material manufacture, comprises and connects the through hole of outlet, this enforcement about valve body unit cavity
The cross section of example through hole is Long Circle, it would however also be possible to employ the shape such as rectangle, semicircle.Spool 1 profile of the present embodiment is cylinder
Shape, it is also possible to for the shape such as spherical.Magnetic conductive board 2 uses permeability magnetic material manufacture, the such as material such as ferrum oxide, soft iron;Magnetic conductive board 2 water
Placing flat, is divided into upper through hole and lower through-hole by through hole, and magnetic conductive board 2 is fixed on spool 1, and front and back the vertical cross-section at edge is stream
Alignment Design (sees Fig. 2).First electrode 3a and the second electrode 3b uses stainless steel material manufacture, lays respectively at a left side for lower through-hole
Right both sides, and embed in spool 1.Electrode cylindrically shaped, the surface of its inner side end and spool 1 lower through-hole maintains an equal level.The
One lead-in wire 4a and the second lead-in wire 4b, uses conductive plastics manufacture, combines together with Shooting Technique and spool 1, and be embedded in valve
The inside of core 1.First lead-in wire 4a connects the first electrode 3a, the second lead-in wire 4b and connects the second electrode 3b, the first lead-in wire 4a and second
Lead-in wire 4b connects circuit board 5, in order to transmit the signal of electrode to circuit board 5, and circuit board 5 can include signal condition electricity
Road.
Valve body unit includes measuring pipe 6, valve gap 7, forms top and the cavity of left and right opening, and spool 1 is within the cavity, this
Cavity shown in embodiment is cylindrical, it is also possible to according to the shape of spool unit, be designed as the shapes such as spherical.Valve in cavity
Core unit horizontally rotate, it is achieved turning on and off of valve, the spool cell position shown in Fig. 1 and Fig. 2 be valve open shape
State.The seam crossing measured between pipe 6 and valve gap 7 should seal, as used the material seals such as rubber, politef, glue, or
The methods such as welding, welding seal.
Energizing unit is positioned at the lower section of valve body unit, including magnetic core 8, coil 9, U-shaped steel bushing 10, skeleton 11.Coil 9 uses
Generally the winding method of coil, is wound on enamel-covered wire level in the groove of I-shaped skeleton 11.Magnetic core 8 is column, is disposed vertically
In the mider hole of skeleton 11, wound coil 9 around.The end of valve body unit, higher than the upper limb of coil 9, is pressed close in the upper end of magnetic core 8
Portion, is conducive to increasing excitation field intensity.The horizontal cross-section of the present embodiment magnetic core 8 is circular, it is also possible to for Long Circle, annular
Deng.Magnetic core 8, coil 9 and skeleton 11 are placed in bottom the U-shaped of U-shaped steel bushing 10.The opening upper limb of the present embodiment U-shaped steel bushing 10, left and right
Both sides are close to the magnetic conductive board 2 in spool unit, higher than the opening upper limb of side front and back, are conducive to improving excitation field intensity.It addition,
From be conducive to manufacture angle, both sides can also with front and back flush.
See Fig. 3, for valve of the present invention and the profile of electromagnetic flowmeter another embodiment of integrated apparatus, including valve
Core unit, valve body unit and Energizing unit.
Wherein spool unit includes spool 1, magnetic conductive board the 2, first electrode 3a, the second electrode 3b, circuit board 5.Spool 1 profile
For cylinder, using plastic material manufacture, comprise and connect the through hole of outlet about valve body unit cavity, the cross section of through hole is oval
Shape.Magnetic conductive board 2 uses permeability magnetic material manufacture, the such as material such as ferrum oxide, soft iron;Magnetic conductive board 2 horizontal positioned, is divided into through hole
Upper through hole and lower through-hole, magnetic conductive board 2 is fixed on spool 1.First electrode 3a and the second electrode 3b uses stainless steel material manufacture,
Lay respectively at the left and right sides of lower through-hole, and embed in spool 1.First electrode 3a and the second electrode 3b connects circuit board 5, in order to
Transmitting the signal of electrode to circuit board 5, circuit board 5 can include signal conditioning circuit.
Valve body includes measuring pipe 6, valve gap 7, forms top and the cavity of left and right opening, and spool unit is within the cavity, chamber
Body is cylindrical, in order to the horizontal rotation of spool unit, it is achieved turning on and off of valve, the spool cell position shown in Fig. 3
Opening state for valve.
Energizing unit is positioned at the lower section of valve body unit, including W-shaped steel set 8, coil 9.W-shaped steel set 8 employing soft iron material system
Make, surround coil 9.
Described valve and electromagnetic flowmeter integrated apparatus are for the calorimeter of band valve, cold meter, water meter.
The calorimeter of described band valve is balance calorimeter.Being provided with valve in the table of balance calorimeter, it not only has
The heat death theory function of calorimeter, is also equipped with the switching function of valve, it is achieved the circulation of heat flow and turn-off function, can carry out hot-fluid
The regulation of amount, by system control, can realize the balance of heat supply network further.
The valve of the present embodiment and electromagnetic flowmeter integrated apparatus, magnetic conductive board, magnetic core, U-shaped steel bushing are respectively overall
Magnetic conductive part, constitutes the magnetic circuit needed for flow sensing.The magnetic conductive part of each entirety can also by several less magnetic conductions and not
Magnetic conductive part combines, it is also possible to removed magnetic conductive part local, and this combination and local are removed and had little influence on entirety
Permeance.One magnetic conductive part is split as multiple parts and the technical scheme of local removal, for this area professional person
Known technology, this type of situation is also in the protection domain of this patent.
The valve of the present embodiment and electromagnetic flowmeter integrated apparatus, by this device vertical mirror or rotate any angle,
Having no effect on the fundamental characteristics of this device, for the technology known to the professional person of this area, this type of situation is also the guarantor of this patent
In the range of protecting.
The valve of the present embodiment and electromagnetic flowmeter integrated apparatus, magnetic conductive board surface can adhere to plastics, painting further
The materials such as material, improve surface smoothness and insulating properties, and for the technology known to the professional person of this area, this type of situation is also at this specially
In the protection domain of profit.
The several specific embodiments being only the present invention disclosed above, but the present invention is not limited to this, any this area
Technical staff can think change, all should fall in protection scope of the present invention.