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Thermal gas mass flowmeter with high range ratio

A gas mass flow, high-range technology, used in indirect mass flow meters, mass flow measurement devices, measurement capacity, etc., can solve the damage of electronic components, electronic components do not adopt enough effective protection measures, affect the thermal gas Mass flow meter service life and other issues, to achieve the effect of increasing firmness, increasing buffer protection effect, and quick installation

Pending Publication Date: 2022-01-07
ANHUI CHUNHUI INSTR CABLE GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the use of the existing thermal gas mass flowmeters with high turndown ratio, the internal electronic components do not adopt sufficient effective protection measures. When the thermal gas mass flowmeter is accidentally dropped, the internal electronic components Susceptible to damage, which affects the service life of the thermal gas mass flow meter

Method used

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  • Thermal gas mass flowmeter with high range ratio
  • Thermal gas mass flowmeter with high range ratio
  • Thermal gas mass flowmeter with high range ratio

Examples

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Embodiment Construction

[0029] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial sources.

[0030] Example:

[0031] Such as Figure 1-7 As shown, the present invention provides a thermal gas mass flowmeter with a high range ratio, which includes an end shell 9, a measuring instrument body 10 is provided at the...

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Abstract

The invention discloses a thermal type gas mass flow meter with a high range ratio. The thermal gas mass flowmeter comprises an end shell, a measurer body is arranged at the front end of the end shell, an outer connector is arranged at the top end of the end shell, the bottom end of the end shell is connected with a transversely arranged flow through pipe with both ends open through a vertically-arranged connecting pipe, and a temperature measuring probe and a heating probe are arranged in the connecting pipe. A front end cover is arranged at the front end of the end shell, and a rear end cover is arranged at the rear end of the end shell. A front cover opening is formed in the front end of the end shell, and the measurer body is located in the front cover opening. A protective cover covering the measurer body is arranged between the measurer body and the front cover opening and comprises a plurality of arc-shaped protective pieces, two limiting sliding strips symmetrically distributed in the width direction of the arc-shaped protective pieces are arranged on the outer sides of the arc-shaped protective pieces, and the limiting sliding strips are arranged in the length direction of the arc-shaped protection pieces.

Description

technical field [0001] The invention relates to the field of gas mass flowmeters, in particular to a thermal gas mass flowmeter with a high range-to-range ratio. Background technique [0002] Thermal gas mass flowmeter is an instrument that uses the principle of thermal diffusion to measure gas flow. The sensor consists of two reference grade thermal resistors (RTDs). One is a speed sensor RH, and the other is a temperature sensor RMG that measures changes in gas temperature. When these two RTDs are placed in the measured gas, the sensor RH is heated, and the other sensor RMG is used to sense the measured gas temperature. As the gas flow rate increases, the airflow removes more heat and the temperature of the sensor RH decreases. [0003] During the use of the existing thermal gas mass flowmeters with high turndown ratio, the internal electronic components do not adopt sufficient effective protection measures. When the thermal gas mass flowmeter is accidentally dropped, t...

Claims

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Application Information

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IPC IPC(8): G01F1/86G01F15/14
CPCG01F1/86G01F15/14
Inventor 沈必亮李聪王晓春姚文亮何一军丁学良
Owner ANHUI CHUNHUI INSTR CABLE GROUP
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