Superhigh-pressure temperature sensor

Abstract

The invention provides a superhigh-pressure temperature sensor, and specifically relates to a superhigh-pressure temperature sensor whose operating pressure can reach 100 MPa. The structure of the temperature sensor comprises a base, an armored structure, a compression sealing head, a compression nut and a temperature sensor; an armored bushing extends into the inner hole diameter of the compression sealing head to a hole diameter step bench and is naturally clamped with the compression sealing head, and external contact surfaces are connected through welding; the compression nut is arranged at the outside of the compression sealing head in a sleeved manner, an outer taper angle sealing surface of the compression sealing head and an inner taper angle sealing surface of the base are in contact, outside threads of the compression nut and inner wall threads of the base are connected through rotation of a hexagon nut at an end portion of the structure of the compression nut, and screwing sealing is realized; and a temperature-sensing segment of a thermocouple temperature sensor extends into the armored sleeve, and adjusts the extending length according to a test point. The usage requirement of spatial gas temperature measurement in a superhigh-pressure gas cylinder with an operating pressure below 100 MPa can be met, and the superhigh-pressure temperature sensor is advantaged by simple installation, high timeliness, high accuracy and wide prospect.

Description

technical field [0001] The invention belongs to the technical field of temperature measurement, and relates to a temperature sensor, in particular to an ultra-high pressure temperature sensor whose working pressure can reach 100 MPa. Background technique [0002] In order to study the temperature effect of rapid filling and deflation, it is necessary to install a sensor on the hydrogen storage cylinder to measure the temperature. There are three main positions: one is the outer wall of the carbon fiber winding layer, the other is the outer wall of the aluminum alloy liner of the gas cylinder, and the first is the inner space of the gas cylinder. gas temperature. [0003] The working pressure of the temperature sensor on the outer wall of the carbon fiber winding layer is normal pressure, as long as the temperature sensor is pasted outside to avoid it. The temperature sensor on the outer wall surface of the aluminum alloy liner is pasted in place before the carbon fiber wind...

AI Technical Summary

Problems solved by technology

However, the maximum working pressure of the existing armored temperature sensor is 35MPa, and in order to withstand pressure, the casing is thick, the wall thickness is large, and the temperature measurement response time is long. For fast charging and discharging, the temperature changes rapidly and violently. Seriously lagging behind the actual temperature at that time, it is difficult to reflect the changing trend of the temperature effect of rapid charging and discharging

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