A new patent fuji remote flange pressure transmitter that is suitable for wide temperature range
The present invention involves a Fuji remote flange pressure transmitter that adapts to the wide temperature range, which belongs to the field of measurement instrument in the instrument industry.
It is mainly used in occasions with high temperature and low ambient temperature in the process chemical conditions. The pressure, differential pressure, liquid level, and flow measurement of the lower fluid belong to the measurement instrument industry in the instrumental industry.
Background technique:
The temperature range of the processing media of the refining chemical industry is wide, and Fuji remote flanges pressure transmitter is mostly used for measurement of high temperature, viscous medium liquid level and flow. The traditional Fuji remote flange pressure transmitter mainly uses a single diaphragm component to fill a silicone oil. When the temperature testing temperature is lower than 200 ° C, the Fuji remote flange transmitter with ordinary silicon oil is used for measurement; when the test temperature is high, the Fuji transmitter with high temperature silicone oil needs to be used to measure. The applicable temperature range of ordinary silicon oil is -40 ℃ ～ 180 ℃, and the applicable temperature range of high temperature silicone oil is 20 ℃ ～ 350 ℃. Due to the poor low temperature characteristics of high temperature silicone oil, when the temperature is lower than 20 ° C, the fluidity of silicone oil is poor, and the media effect of pressure transmission cannot be performed. Fuji transmitters cannot be measured correctly.
Among the existing technologies, the Fuji remote flange pressure transmitter used in cold areas needs to be insulated and accompanied by heat insulation to ensure that high -temperature silicone oil can work normally. In this way, many issues bring large equipment investment, unstable measurement, and high operating maintenance costs. In response to the requirements of corporate cost reduction and efficiency, it is urgent to provide a temperature range that can be provided within the temperature range of -40 ° C to 350 ° C. It does not need to take insulation and heat-accompanying measures to achieve the pressure, differential pressure, liquid pressure, liquid pressure, liquid, and liquid in the cold environment in the cold environment. Stable measurement of bit and flow.
It includes primary diaphragm components and secondary diaphragm components, which include secondary diaphragm components including secondary diaphragm components and capillary components. The part of the component includes the basement components including the base platform and isolation membrane; the base of the secondary diaphragm component is integrated with the combination of the connection cover of the one -time diaphragm component.
The present invention uses silicon oil with different temperature characteristics in the two diaphragm components to achieve occasions with low environmental temperature in the cold area in cold areas. Under the condition of high temperature in the process, Fuji remote flange pressure transmitter can work normally within the temperature range of ‑40 ° C ~ 350 ° C.
Sovereignty: 1. A Fuji remote flange pressure transmitter that is suitable for wide temperature range, including a first diaphragm component and a secondary diaphragm component. A membrane with secondary diaphragm components is set, which is a septum component and a secondary diaphragm component (the diaphragm isolation of the secondary partial component and connecting the combination by connecting it in series; And the capillary component, which is located on the left side of the capillary component of the capillary tube; the septum component includes a septum component, which includes a basement and isolation membrane. In the basement groove; the base of the secondary diaphragm component is integrated with the combination of the connection cap of the septum component.
