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A pressure sensor cooling device suitable for high temperature environment testing

A technology of pressure sensor and cooling device, applied in the direction of measuring device, measuring fluid pressure, instrument, etc., to achieve the effect of improving thermal adaptability, realizing total pressure or static pressure measurement, and facilitating real-time working environment

Active Publication Date: 2022-06-21
HUANENG POWER INT INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to reduce the error of the dynamic pressure measurement of the unsteady fluid working medium in the existing high-temperature environment, and to provide a pressure sensor cooling device suitable for high-temperature environment testing

Method used

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  • A pressure sensor cooling device suitable for high temperature environment testing
  • A pressure sensor cooling device suitable for high temperature environment testing
  • A pressure sensor cooling device suitable for high temperature environment testing

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Embodiment

[0034] In this embodiment, the cooling heat exchange structure 6 is 80 mm long, the outer wall 12 of the cooling cavity and the inner wall 13 of the cooling cavity are arranged coaxially, the outer diameter of the outer wall 12 of the cooling cavity is 25 mm, the inner diameter is 21 mm, the wall thickness is 2 mm, and the outer diameter of the inner wall 13 of the cooling cavity is 9 mm. The inner diameter is 5mm and the wall thickness is 2mm. The inner surface of the cooling chamber inner wall 13 from the cooling chamber bottom plate 14 is designed with a M6×0.5 standard internal thread with a length of 15mm. The cooling chamber bottom plate 14 and the cooling chamber cover plate 15 have a wall thickness of 2mm; The plate 10 is 70mm long and 2mm thick, and is connected to the outer wall 12 of the cooling cavity and the inner wall 13 of the cooling cavity, and divides the annular space formed between the outer wall 12 of the cooling cavity and the inner wall 13 of the cooling c...

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Abstract

The invention discloses a pressure sensor cooling device suitable for high-temperature environment testing, which comprises a cooling heat exchange structure with a hollow cavity, the hollow cavity of the cooling heat exchange structure is divided into two cavities, the outer cavity and the outer cavity The interval is two parts connected at the bottom. The top of the cooling heat exchange structure is provided with a cooling water inlet pipe connected with a part of the outer cavity, and a cooling water outlet pipe connected with another part of the outer cavity. The top of the inner cavity is provided with There is a sensor mounting seat, a pressure induction tube is arranged at the bottom, a temperature sensor mounting seat passing through a part of the outer cavity and communicating with the inner cavity is provided on the circumference of the cooling heat exchange structure, and a temperature sensor mounting seat passing through another part of the outer cavity and communicating with the inner cavity is provided. A nitrogen supply pipe connected to the inner cavity. The invention can reduce the error of the dynamic pressure measurement of the unsteady fluid working medium in the existing high temperature environment.

Description

Technical field: [0001] The invention relates to a pressure sensor cooling structure, in particular to a pressure sensor cooling device suitable for high temperature environment testing. Background technique: [0002] Pressure is an important state parameter that characterizes the hydrodynamic properties of the object under study. For unsteady flow processes, the state parameters such as pressure and temperature of the working fluid will change with time and have dynamic characteristics. At present, dynamic pressure is widely used in industrial production and scientific research. For example, the pressure in internal combustion engines, gas turbines, steam turbines, and rocket engines is basically dynamic. The chamber pressure of guns and explosion shock waves are dynamic pressures. Various industrial control equipment The pulse pressure of hydraulic and pneumatic devices in power machinery is also dynamic pressure. Therefore, dynamic pressure measurement is required to stu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L19/06
CPCG01L19/0681
Inventor 肖俊峰李晓丰王峰王玮
Owner HUANENG POWER INT INC
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