Quartz tube electromagnetic flow sensor
A technology of electromagnetic flow and quartz tube, which is applied in the application of electromagnetic flowmeters to detect fluid flow and volume/mass flow generated by electromagnetic effects. Broken, simple structure, simple production process
Active Publication Date: 2014-02-12
山东迪泽仪表科技有限公司
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to solve the current insurmountable problems of high-temperature sintering, fragile ceramics, and low yield of sintered shells of traditional ceramic electromagnetic flowmeters, and has the advantages of simple structure, small volume, simple production process, and high applicability. Wide, vibration-resistant, not easy to break, high temperature resistant new electromagnetic flowmeter, quartz tube electromagnetic flow sensor
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[0016] Such as figure 1 As shown, a quartz tube electromagnetic flow sensor includes a permanent magnet 2 and an electrode wire 1 passing through the permanent magnet 2. The permanent magnet 2 is arranged on a quartz tube 3, and the outer surface of the quartz tube 3 is covered with a flexible lining 6. A conductive ceramic electrode 5 is also provided on the quartz tube 3 to connect with the lead-out electrode wire 1 , and both ends of the quartz tube 3 are clamped in the quartz sheath 4 .
[0017] Such as figure 2 As shown, the quartz tube is divided into two layers, the outer layer is a non-conductive quartz layer 3-2, and its material is calculated by weight percentage: quartz 90-95wt%, zirconia 3-9%, boric acid 1-3% ; The inner layer is the conductive layer 3-1, and its material is calculated by weight percentage: 80-85% of quartz, 15-20% of antimony tetrachloride.
[0018] The material of described ceramic electrode 5 is barium stannate base conductive ceramics, and i...
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The invention relates to a device for measuring flow of fluid in pipelines, in particular to a quartz tube electromagnetic flow sensor which comprises a permanent magnet and an extraction electrode wire penetrating through the permanent magnet. The quartz tube electromagnetic flow sensor is characterized in that the permanent magnet is arranged on a quartz tube, a flexible lining is coated on the outer surface of the quartz tube, a conductive ceramic electrode connected with the extraction electrode wire is arranged on the quartz tube, and two ends of the quartz tube are clamped in quartz jackets. The quartz tube electromagnetic flow sensor is simple in structure, small in size, simple in production process, high in applicability, resistant to abrasion and high in temperature, less prone to damage and the like.
Description
technical field [0001] The invention relates to a measuring device for fluid flow in a pipeline, in particular to a quartz tube electromagnetic flow sensor. Background technique [0002] At present, the electromagnetic flowmeter is the most successful and most widely used flow measurement method in the current process control and flow measurement. Electromagnetic flow measuring devices are based on Faraday's law of electromagnetic induction to measure the volume flow of the conductive medium in the pipe. After nearly 50 years of development, the technology of full-pipe electromagnetic flowmeter has become very mature. At present, the technologies in various countries and countries, in terms of sensors, are all in the form of metal pipes lined with rubber linings, PTFE linings, PFA linings, etc., all of which need to use electrode probes to pass through the instrument shell and lining. In direct contact with the medium. When measuring high-temperature and high-concentratio...
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IPC IPC(8): G01F1/58
Inventor 冯威冯娜
Owner 山东迪泽仪表科技有限公司