CN105067055A - Electromagnetic flow transducer with unlined measurement cavity - Google Patents
Electromagnetic flow transducer with unlined measurement cavity Download PDFInfo
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- CN105067055A CN105067055A CN201510502883.0A CN201510502883A CN105067055A CN 105067055 A CN105067055 A CN 105067055A CN 201510502883 A CN201510502883 A CN 201510502883A CN 105067055 A CN105067055 A CN 105067055A
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- electromagnetic flow
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Abstract
The invention relates to structural improvement of electromagnetic flow transducers, aims at solving the technical problem that an existing transducer is complicated in structure ad high in production cost and is difficultly produced through a production line and popularization and application of high-performance electromagnetic flow transducers in the field of heat supply metering instruments and belongs to the technical field of electromagnetic electronic water meters. An electromagnetic flow transducer is characterized in that a measurement cavity is an unlined metal tube, an insulation electrode base for measurement electrodes to be embedded is arranged on the inner wall of the measurement cavity, the measurement electrodes are fixedly connected with the insulation electrode base in an embedded mode, and magnet exciting coils are of iron core and pole shoe integrated structures with E-shaped silicon steel sheet laminated iron cores and magnet yokes. The electromagnetic flow transducer has the advantages that the measurement cavity does not need a lining and other new technologies, manufacturing cost is reduced, and conditions are created for achievement of production and assembly operations and large-scale mass production of the electromagnetic flow transducer on the production line and further application of the electromagnetic flow transducer in the wide civilian market field and is especially suitable for flow detection of heat transfer fluids.
Description
Technical field
The structure of Wataru of the present invention and a kind of electromagnetic flow transducer is improved, its Wataru and a kind of electromagnetic flow transducer of measurement cavity without liner being applicable to heat metering especially, belongs to electromagnetic-type electronic water meter technical field.
Background technology
From on February 18th, 2000 Ministry of Construction issued " 76 command " formally start centered by heat metering supply hot water reform since, governments at all levels give unprecedented attention to heat metering reform.Firmly the portion of building also clearly represents: within 2012, will deepen heat metering reform, and heat supply energy consumption statistic information platform is set up in research.Strengthen heat billing supervision and check dynamics, push forward household measurement heat-supplying fee collection comprehensively.And as the terminal user of household heat supplying metering, what the common people were concerned about most is exactly that hope heat can as use water, and electricity consumption is the same, can objective reasonably according to consumption reality number pay the fees.Calorimeter flows through the flow sensor of the heat transport fluid flow of heat exchanger primarily of one in order to measure, a pair respectively in order to measure heat transport fluid at the water inlet of heat exchanger and leaving water temperature temperature sensor, and a heat energy intelligence arithmetical unit is formed.Then the heat transport fluid flow provided according to coupled flowmeter and temperature sensor by heat energy arithmetical unit and Inlet and outlet water temperature data, go out by calculation of thermodynamics formulae discovery the heat that user's heat-exchange system obtains or absorb.Can say, the performance of a calorimeter, function and quality depend primarily on the Performance and quality of the flow sensor detecting heat transport fluid flow.But the quality of current National calorimeter product is very pessimistic, can the calorimeter ratio of 3 years ' operation less than 10%, the flow sensor of the direct contact heat transport fluid of the calorimeter phenotype institute Bian come into the market is described, is not too suitable for domestic existing central heating fluid water quality.
Electromagnetic flow transducer, as the measuring instrument of tracer liquid flow, has the premium properties of many uniquenesses, is particularly suitable for domestic existing central heating fluid water quality.But conventional electromagnetic flow sensor Bian stainless steel pipe, insulation liner body (rubber) is needed at stainless steel pipe tube wall, and the electrode base etc. that will freeze, the technique of processing and manufacturing is comparatively loaded down with trivial details, the said goods is made to be difficult to production line balance assembling and scale of mass production, causing expensive production cost thus, limiting the product for civilian use technical field that high performance electromagnetic flow transducer has a large capacity and a wide range at some, as done the application in heat metering instrument field.
Summary of the invention
The object of this invention is to provide that a kind of structure is simple, with low cost, processing technology is easy, be convenient to the electromagnetic flow transducer of measurement cavity without liner of assembly operation, and the electromagnetic flow transducer of this function admirable be incorporated in the manufacturing technology of the electromagnetic-type electronic water meter of heat metering instrument--calorimeter and water utilities trade settlement.
For achieving the above object, the technical scheme that Bian gets is: measure the electromagnetic flow transducer of cavity without liner, comprise one measure cavity, be arranged on a pair potential electrode of described measurement cavity inner wall, the field coil of the outer both sides relatively of the described measurement cavity that is placed in, it is characterized in that: described measurement cavity Bian is without the metal tube of liner; Described measurement cavity inner wall is equipped with the insulating base for embedding potential electrode, and described potential electrode is fixedly connected with described insulating base is embedded; Described field coil adopts E shape folded silicon steel slice iron core with the iron core pole shoe integral structure of yoke.
Described measurement cavity is non-magnetic, high resistivity metal tube, in venturi tubulose, or in straight pipe shape.
Described potential electrode is made by non-magnetic metal material, described insulating base is that high insulation resistance material makes, adopt the job operation of injection mo(u)lding, potential electrode be embedded in insulating base, described potential electrode and the injection mo(u)lding of described insulating electrode pedestal embed and are connected and fixed.
Described a pair field coil, is the iron core pole shoe and the yoke that are become the integration of E type by the punching silicon-steel that magnetoconductivity is higher, is then inserted in field coil the excitation system forming sensor.
The invention has the beneficial effects as follows: (1) electromagnetic flow transducer because of Bian measures cavity need not liner new technology, structure simplifies greatly, the processing and fabricating that hot investment casting is once-forming, low cost of manufacture, simple and convenient assembly; (2) embedded one-body molded insulation measurement electrode, substantially increases reliability and the Grade such as sealing of potential electrode sealing; (3) iron core pole shoe and the yoke of the integration of E type is become by the punching silicon-steel that magnetoconductivity is higher, then the excitation system structure formed in field coil is loaded, overcome the shortcoming compared with wide arc gap and less surface of contact between independent iron core pole shoe and yoke, not only increase space magnetic field intensity, also ensure that in best electromagnetic induction space uniform magnetic field characteristic, decrease excitation power consumption simultaneously, thus under identical flow velocity, improve the conversion ratio of flow signal to induction electromotive force e.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 measures the electromagnetic flow transducer structural representation of cavity without liner;
Fig. 2 is that the A of Fig. 1 is to structural representation;
Fig. 3 is inserted insulation potential electrode structural representation
;
Fig. 4 is that the B of Fig. 3 is to structural representation.
In figure, 1-a pair field coil; 2-measure cavity without liner; 3-a pair lamination silicon chip yoke; 4-a pair inserted insulation potential electrode TA, TB; 5-insulating electrode pedestal.
A1, A2-field coil head; B1, B2-field coil tail.
embodiment:
Fig. 1 and Fig. 2 measures the electromagnetic flow transducer structural representation of cavity without liner, Fig. 3 and Fig. 4 is inserted insulation potential electrode structural representation.As seen from the figure: measure the electromagnetic flow transducer of cavity without liner, comprise one measure cavity 2, be arranged on a pair potential electrode 4 of described measurement cavity 2 inwall, the field coil 1 of the outer both sides relatively of the described measurement cavity that is placed in, it is characterized in that: described measurement cavity 2 Bian is without the metal tube of liner; Described measurement cavity 2 inwall is equipped with the insulating electrode pedestal 5 for embedding potential electrode 4, and described potential electrode 4 is fixedly connected with described insulating electrode pedestal 5 is embedded; Described field coil 1 adopts E shape folded silicon steel slice iron core with the iron core pole shoe integral structure of yoke.
Described measurement cavity is non-magnetic, high resistivity metal tube, in venturi tubulose, or in straight pipe shape.
Described potential electrode is made by non-magnetic metal material, and described insulating base is that high insulation resistance material makes, and adopts the job operation of injection mo(u)lding, potential electrode is embedded in insulating base.
Described a pair field coil, is become E shape cores pile in layers with the iron core pole shoe integral structure of yoke by the punching silicon-steel that magnetoconductivity is higher, is then inserted in field coil the excitation system forming sensor.
The present invention measures the electromagnetic flow transducer of cavity without liner without liner, include the fundamental of electromagnetic flow transducer measuring system indispensability: measure cavity, a pair potential electrode, a pair field coil, all parts all can production line balance, and directly assembling is assembled.Thus the processing technology that fundamentally the electromagnetic flow transducer complexity of abandoning tradition is loaded down with trivial details, decline manufacturing cost by a relatively large margin.The present invention becomes iron core pole shoe and the yoke of E type integration by the punching silicon-steel that magnetoconductivity is higher, improve space magnetic field intensity, also ensure that in best electromagnetic induction space uniform magnetic field characteristic, decrease excitation power consumption simultaneously, thus under identical flow velocity, improve the conversion ratio of flow signal to induction electromotive force e.Therefore, decline manufacturing cost by a relatively large margin and provide the electromagnetic flow transducer of function admirable, for the present invention's wide civil area that comes into the market creates the most basic condition.It is particularly suitable for being formed the electromagnetic type calorimeter of high performance-price ratio and the electromagnetic-type electronic water meter of water utilities trade settlement as detection heat transport fluid flow in the supply hot water reform centered by heat metering.
Claims (3)
1. measure the electromagnetic flow transducer of cavity without liner, comprise one measure cavity, be arranged on a pair potential electrode of described measurement cavity inner wall, the field coil of the outer both sides relatively of the described measurement cavity that is placed in, it is characterized in that: described measurement cavity Bian is without the metal tube of liner; Described measurement cavity inner wall is equipped with the insulating base for embedding potential electrode, and described potential electrode is fixedly connected with described insulating base is embedded; Described field coil adopts E shape folded silicon steel slice iron core with the iron core pole shoe integral structure of yoke.
2. measure cavity according to claim 1 without the electromagnetic flow transducer of liner, it is characterized in that: described measurement cavity is non-magnetic, high resistivity metal tube, in venturi tubulose, or in straight pipe shape.
3. measure the electromagnetic flow transducer of cavity without liner according to claim 1, it is characterized in that: described potential electrode is made by non-magnetic metal material, described insulating base is that high insulation resistance material makes, and described potential electrode and the injection mo(u)lding of described insulating electrode pedestal embed and be connected and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510502883.0A CN105067055A (en) | 2015-08-17 | 2015-08-17 | Electromagnetic flow transducer with unlined measurement cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510502883.0A CN105067055A (en) | 2015-08-17 | 2015-08-17 | Electromagnetic flow transducer with unlined measurement cavity |
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| Publication Number | Publication Date |
|---|---|
| CN105067055A true CN105067055A (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510502883.0A Pending CN105067055A (en) | 2015-08-17 | 2015-08-17 | Electromagnetic flow transducer with unlined measurement cavity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571660A (en) * | 2015-12-16 | 2016-05-11 | 宁波水表股份有限公司 | Micro-power-consumption excitation electromagnetic flow transducer |
| CN113932859A (en) * | 2021-10-19 | 2022-01-14 | 大庆市镁龙测控技术有限公司 | Intelligent flowmeter with wide and adjustable measurement range |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504541A (en) * | 1967-02-04 | 1970-04-07 | Mawdsley S Ltd | Detector heads |
| CN2690855Y (en) * | 2004-02-13 | 2005-04-06 | 程现西 | Electromagnetic flow sensor without inner lining |
| CN201037779Y (en) * | 2006-12-09 | 2008-03-19 | 承德市本特万达仪表有限公司 | Electromagnetic flow transducer without lining |
| DE102008035724A1 (en) * | 2008-07-31 | 2010-02-04 | Abb Technology Ag | Magnetic inductive flow meter for measuring flow of e.g. liquid, in e.g. industrial application, has yoke formed at pole cores for formation of magnetic circuit, and cores forming molding part made of ferrite-plastic-composite material |
| CN204881719U (en) * | 2015-08-17 | 2015-12-16 | 上海埃克仪器仪表有限公司 | Measuring chamber body does not have electromagnetic flow transducer of inside lining |
-
2015
- 2015-08-17 CN CN201510502883.0A patent/CN105067055A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504541A (en) * | 1967-02-04 | 1970-04-07 | Mawdsley S Ltd | Detector heads |
| CN2690855Y (en) * | 2004-02-13 | 2005-04-06 | 程现西 | Electromagnetic flow sensor without inner lining |
| CN201037779Y (en) * | 2006-12-09 | 2008-03-19 | 承德市本特万达仪表有限公司 | Electromagnetic flow transducer without lining |
| DE102008035724A1 (en) * | 2008-07-31 | 2010-02-04 | Abb Technology Ag | Magnetic inductive flow meter for measuring flow of e.g. liquid, in e.g. industrial application, has yoke formed at pole cores for formation of magnetic circuit, and cores forming molding part made of ferrite-plastic-composite material |
| CN204881719U (en) * | 2015-08-17 | 2015-12-16 | 上海埃克仪器仪表有限公司 | Measuring chamber body does not have electromagnetic flow transducer of inside lining |
Non-Patent Citations (2)
| Title |
|---|
| 蔡武昌 等: "《流量仪表年鉴 电磁流量计》", 31 March 2004 * |
| 马林联: "《传感器技术及应用教程》", 31 August 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571660A (en) * | 2015-12-16 | 2016-05-11 | 宁波水表股份有限公司 | Micro-power-consumption excitation electromagnetic flow transducer |
| CN113932859A (en) * | 2021-10-19 | 2022-01-14 | 大庆市镁龙测控技术有限公司 | Intelligent flowmeter with wide and adjustable measurement range |
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Application publication date: 20151118 |