Spraying material and electromagnetic flowmeter without inner liner

A technology of electromagnetic flowmeter and spraying materials, which is applied in the direction of application of electromagnetic flowmeter to detect fluid flow, volume/mass flow generated by electromagnetic effects, volume measurement, etc., which can solve problems such as unusability, wrong selection, wear and tear, etc., and achieve extension The effect of service life and data stability

Inactive Publication Date: 2018-08-03
苏州希克曼物联技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference from the lining material, the use of electromagnetic flowmeters has certain restrictions.
Moreover, according to the different water quality and environment used, there are many different types of linings such as: rubber, polytetrafluoroethylene, etc., which makes it difficult to understand the product in the process of production and purchase, resulting in poor selection. Mistakes, when the product arrives at the site and cannot be used, or some water quality conditions lead to lining wear, corrosion, etc., resulting in inaccurate measurement
The existing lining can meet the requirements for domestic sewage, but once industrial wastewater is used due to the material itself, it will cause corrosion, wear, etc., which will greatly reduce the service life and measurement accuracy of the electromagnetic flowmeter.
This makes it necessary to have a detailed understanding of the entire use process before sales, and the process or water quality cannot be changed during use, and the design is relatively rigid

Method used

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  • Spraying material and electromagnetic flowmeter without inner liner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1, such as figure 1 As shown, a liner-free electromagnetic flowmeter includes a measuring tube body 1, an electrode 2, a magnetic circuit system, a housing, and a converter. The specific connection structure is the same as that of the prior art, and the difference is that the electromagnetic The flowmeter has no inner lining, but an insulating layer 3 is sprayed on the inner wall of the measuring pipe body, and the inner lining is replaced by the insulating layer. The electrodes penetrate from the outer wall of the measuring tube to the inner wall of the measuring tube. The thickness of the insulating layer 3 is 10 microns-1000 microns. In this embodiment, it is preferably 500 microns. When spraying the insulating layer, the spraying conditions are normal temperature: 15°C-25°C; normal pressure: 1.01×10 5 Pa.

[0017] In this embodiment, the components of the spraying material used for the insulating layer 3 include modified isocyanate: 55%; modified silicat...

Embodiment 2

[0018] Embodiment 2, a liner-free electromagnetic flowmeter, including the measuring pipe body 1, the electrode 2, the magnetic circuit system, the casing and the converter, etc., its specific connection structure is the same as that of the prior art, the difference is that the present invention The electromagnetic flowmeter has no inner lining, but an insulating layer 3 is sprayed on the inner wall of the measuring pipe body, and the inner lining is replaced by the insulating layer 3 . The electrode 2 penetrates from the outer wall of the measuring tube body to the inner wall of the measuring tube body 1 . The thickness of the insulating layer 3 is 10 microns-1000 microns. In this embodiment, it is preferably 500 microns. When spraying the insulating layer, the spraying conditions are normal temperature: 15°C-25°C; normal pressure: 1.01×10 5 Pa.

[0019] In this embodiment, the components of the spraying material used for the insulating layer 3 include modified isocyanate:...

Embodiment 3

[0020] Embodiment 3. In this embodiment, the components of the spraying material used for the insulating layer 3 include modified isocyanate: 65%; modified silicate solution: 35% by mass percentage. The modified silicate concentration in the modified silicate solution is 20%.

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Abstract

The invention discloses a spraying material and an electromagnetic flowmeter without an inner liner. The spraying material is prepared, by mass, 55-65% of modified isocyanate and 35-45% of modified silicate solution. According to the spraying material and the electromagnetic flowmeter without the inner liner, a traditional inner is replaced by a sprayed insulating layer, when the spraying materialis applied in a living sewage environment or a strong acid-base high-corrosivity environment or water with high sand content, stable and accurate measurement data can be stably obtained, and long-term operation is achieved. The spraying material and the electromagnetic flowmeter can adapt to various water quality conditions, and the service life is prolonged; instead of being conducted at high temperature and pressure, spraying operation can be conducted at normal temperature and pressure and is simple and convenient.

Description

technical field [0001] The invention relates to the fields of chemistry, flow meters and the like, in particular to a spraying material and an electromagnetic flow meter without lining. Background technique [0002] Electromagnetic flowmeters generally have a set of coils and two electrodes. The function of the coils is to add an electric field to the fluid. The flowing conductive liquid is equivalent to a conductor. According to Faraday's law of electromagnetic induction, when the conductor cuts the magnetic force line, a corresponding force proportional to the speed will be generated. The electromotive force of the electrode is to measure the induced electromotive force, so only the electrode in the measuring tube is connected to the conductive liquid, and the other parts are the inner lining. The electromagnetic flowmeter can work normally only if the insulation is ensured. If the metal pipe with the magnetic field is also in contact with the liquid, there will be a short...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/58G01F15/00C09D1/00C09D5/25C09D7/63
Inventor 胡涛钟旭东
Owner 苏州希克曼物联技术有限公司
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