CN203949702U - A kind of higfh-tension ceramics electromagnetic flow transducer - Google Patents

A kind of higfh-tension ceramics electromagnetic flow transducer Download PDF

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Publication number
CN203949702U
CN203949702U CN201420380538.5U CN201420380538U CN203949702U CN 203949702 U CN203949702 U CN 203949702U CN 201420380538 U CN201420380538 U CN 201420380538U CN 203949702 U CN203949702 U CN 203949702U
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China
Prior art keywords
measuring guide
potential electrode
stupalith
higfh
temperature
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Active
Application number
CN201420380538.5U
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Chinese (zh)
Inventor
陈雅芬
范叔晋
陈通照
陈福钏
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ZHEJIANG AOXIN INSTRUMENT CO Ltd
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ZHEJIANG AOXIN INSTRUMENT CO Ltd
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Abstract

The utility model relates to a kind of higfh-tension ceramics electromagnetic flow transducer, comprise housing, measuring guide, potential electrode and field coil and yoke assembly, it is characterized in that: described measuring guide is made by stupalith, potential electrode is for to be made by conducting ceramic material, described potential electrode is connected in the inside of measuring guide, and potential electrode and measuring guide are made into integration; The utility model is: the fluid media (medium) temperature that the measuring guide of stupalith adapts to can reach 180 ℃, be not subject to the influence of temperature change of fluid media (medium), there is pressure-bearing and electric insulation function simultaneously, processing cost is reduced and simplified manufacturing process, maintain easily and change; Integrally formed the making of potential electrode that the measuring guide of making due to stupalith and conducting ceramic material are made, insensitive to temperature shock, superior long-time stability and degree of accuracy guarantee, in the temperature range allowing, do not have seal leakage problem.

Description

A kind of higfh-tension ceramics electromagnetic flow transducer
Technical field
The utility model relates to a kind of higfh-tension ceramics electromagnetic flow transducer.
Background technology
Conventional high-voltage electromagnetic flow sensor is comprised of measuring guide, joint flange, field coil and yoke, potential electrode and housing, can form a set of complete electromagnetic flowmeter Flow Measuring System after sensor and converter are supporting.Wherein, measuring guide is made by non-magnetic stainless steel tube and fluoroplastics lining, and field coil and potential electrode are installed on measuring guide, form thus flow sensing and measure structure, but the sensor of this structure exists some deficiency:
1, fluoroplastics lining processing and fabricating cost is higher, is subject to the influence of temperature change of operating mode fluid media (medium), and sensor circulation area is changed, and affect measuring accuracy, and in general application, limit fluid temperature is less than 80 ℃.
2, fluoroplastics lining back warp long term wear, also can make sensor circulation area change, and affects measuring accuracy, during serious wear, may cause sensor fault because lining damages.
3, potential electrode extrapolation is installed on measuring guide, and by coordinating with liner seal, reaches the object with measuring guide electric insulation.In long-term use, be subject to the impact (cold flow effect) of fluid temperature variations, can make sealing effectiveness reduce, cause electric insulation intensity to decline, cause sensor meter characteristic to change, can not guarantee accuracy and the sensitivity of metering, when serious, sensor fault can not be used.
4, the in the situation that of the corrosion of long term wear or Korrosionsmedium, potential electrode may be worn and corrode, and produces dielectric strength and reduces and leak, and causes sensor fault and can not work.
Utility model content
The deficiency existing for prior art, the influence of temperature change that the purpose of this utility model is to provide a kind of measuring guide not to be subject to fluid media (medium), measures accurate and wear-resistant corrosion resistant higfh-tension ceramics electromagnetic flow transducer.
The technical solution of the utility model is achieved in that a kind of higfh-tension ceramics electromagnetic flow transducer, comprise housing, measuring guide, potential electrode and field coil and yoke assembly, this housing comprises cavity, and on housing, be provided with the medium inlet and the media outlet that communicate with cavity, measuring guide is positioned at this cavity place, field coil and yoke assembly are sheathed on the outer wall of measuring guide, it is characterized in that: described measuring guide is made by stupalith, potential electrode is for to be made by conducting ceramic material, described potential electrode is connected in the inside of measuring guide, and potential electrode and measuring guide are made into integration.
The utility model is further set to: the import and export of described measuring guide are conical.
By adopting technique scheme, 1, because measuring guide adopts stupalith manufacture, the fluid media (medium) temperature of adaptation can reach 180 ℃, is not subject to the influence of temperature change of fluid media (medium); 2, the measuring guide of making due to stupalith has pressure-bearing and electric insulation function (substituting non-magnetic stainless steel tube and the fluoroplastics lining of original structure) simultaneously, and processing cost is reduced and simplified manufacturing process, in rig-site utilization, maintains easily and changes; 3, the potential electrode one thermal sintering that the measuring guide of making due to stupalith and conducting ceramic material are made is made, insensitive to temperature shock, superior long-time stability and degree of accuracy guarantee, in the temperature range allowing, there is not seal leakage problem, because the wearing quality of material is strong, while using for a long time, wear and tear very little, can guarantee that the meter characteristic of sensor is constant; 4, owing to importing and exporting with taper shape in measuring guide, flow process is optimized, improves signal to noise ratio (S/N ratio); 5, smooth and good chemical resistance and the wearing quality of measuring guide inside surface that stupalith is made also can be used for a long time in corrosivity and the fluid measurement of slurries class, and also can stably measured in noise application.
Accompanying drawing explanation
Fig. 1 is structural representation one in the utility model embodiment;
Fig. 2 is structural representation two in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in Figures 1 and 2, the utility model discloses a kind of higfh-tension ceramics electromagnetic flow transducer, comprise housing 5, measuring guide 7, potential electrode 6, field coil and yoke assembly 8 and joint flange 1, this housing 5 comprises cavity, and on housing 5, be provided with the medium inlet and the media outlet that communicate with cavity, measuring guide 7 is positioned at this cavity place, field coil and yoke assembly 8 are sheathed on the outer wall of measuring guide 7, the outer wall of this housing 5 is connected with converter Connection Block 4, and measuring guide 7 is provided with the first O-ring seal 2 with the junction of cavity, converter Connection Block 4 is provided with the second O-ring seal 3 with the junction of housing 5, in the utility model specific embodiment, described measuring guide 7 is made by stupalith, potential electrode 6 is for to be made by conducting ceramic material, described potential electrode 6 is connected in the inside of measuring guide 7, and potential electrode 6 is made into integration with measuring guide 7, wherein potential electrode 6 is made with measuring guide 7 one sinter moldings.
The utility model is further set to: the import and export of described measuring guide 7 are conical.
By adopting technique scheme, 1, because measuring guide adopts stupalith manufacture, the fluid media (medium) temperature of adaptation can reach 180 ℃, is not subject to the influence of temperature change of fluid media (medium); 2, the measuring guide of making due to stupalith has pressure-bearing and electric insulation function (substituting non-magnetic stainless steel tube and the fluoroplastics lining of original structure) simultaneously, and processing cost is reduced and simplified manufacturing process, in rig-site utilization, maintains easily and changes; 3, the potential electrode one thermal sintering that the measuring guide of making due to stupalith and conducting ceramic material are made is made, insensitive to temperature shock, superior long-time stability and degree of accuracy guarantee, in the temperature range allowing, there is not seal leakage problem, because the wearing quality of material is strong, while using for a long time, wear and tear very little, can guarantee that the meter characteristic of sensor is constant; 4, owing to importing and exporting with taper shape in measuring guide, flow process is optimized, improves signal to noise ratio (S/N ratio); 5, smooth and good chemical resistance and the wearing quality of measuring guide inside surface that stupalith is made also can be used for a long time in corrosivity and the fluid measurement of slurries class, and also can stably measured in noise application.
Wherein stupalith is known materials, and stupalith is that it has the advantages such as high-melting-point, high rigidity, high-wearing feature, resistance to oxidation with a class Inorganic Non-metallic Materials natural or that synthetic compound process is shaped and high temperature sintering is made.
Wherein leading stupalith is known materials, when conducting ceramic material is ceramic heat, in the outer field electronics of atom, can obtain enough energy, to overcome the attractive force of atomic nucleus to it, can free-moving free electron and become, this pottery just becomes conductivity ceramics.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (2)

1. a higfh-tension ceramics electromagnetic flow transducer, comprise housing, measuring guide, potential electrode and field coil and yoke assembly, this housing comprises cavity, and on housing, be provided with the medium inlet and the media outlet that communicate with cavity, measuring guide is positioned at this cavity place, field coil and yoke assembly are sheathed on the outer wall of measuring guide, it is characterized in that: described measuring guide is made by stupalith, potential electrode is for to be made by conducting ceramic material, described potential electrode is connected in the inside of measuring guide, and potential electrode and measuring guide are made into integration.
2. higfh-tension ceramics electromagnetic flow transducer according to claim 1, is characterized in that: the import and export of described measuring guide are conical.
CN201420380538.5U 2014-07-10 2014-07-10 A kind of higfh-tension ceramics electromagnetic flow transducer Active CN203949702U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420380538.5U CN203949702U (en) 2014-07-10 2014-07-10 A kind of higfh-tension ceramics electromagnetic flow transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420380538.5U CN203949702U (en) 2014-07-10 2014-07-10 A kind of higfh-tension ceramics electromagnetic flow transducer

Publications (1)

Publication Number Publication Date
CN203949702U true CN203949702U (en) 2014-11-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420380538.5U Active CN203949702U (en) 2014-07-10 2014-07-10 A kind of higfh-tension ceramics electromagnetic flow transducer

Country Status (1)

Country Link
CN (1) CN203949702U (en)

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