A Fixing Mechanism for Remote Pressure Transmitter

Abstract

The invention relates to a fixing mechanism of a remote pressure transmitter. The remote pressure transmitter includes a remote seal assembly (4) arranged at the measuring end of the transmitter. The remote seal assembly (4) includes a flange and a seal on the The pressure measuring diaphragm in the end face of one side of the flange, the fixing mechanism includes an instrument frame (1) for carrying the remote seal assembly (4), and the instrument frame (1) is provided with a protruding mounting plate (2), The mounting plate (2) is connected with the bakelite (3), and the flange of the remote transmission sealing assembly (4) is connected with the bakelite (3). In the solution provided by the present invention, it is only necessary to drill holes on the bakelite board for installation with the instrument frame and the flange respectively. The flange can be a standard flange without additional drilling to avoid damage to the mechanical structure of the flange. It affects its pressure bearing capacity, thereby improving the safety and reliability of the instrument and reducing the purchase cost.

Description

technical field [0001] The invention belongs to the technical field of transmitter installation, and in particular relates to a fixing mechanism of a remote pressure transmitter. Background technique [0002] In nuclear power plants, when a pressure transmitter with a remote diaphragm seal is used to measure a medium that is prone to crystallization, it is necessary to add heat insulating material between the medium and the mounting plate of the instrument frame to prevent the remote diaphragm of the transmitter from The medium crystallizes when cooled. Such as figure 1 As shown, the traditional installation method is to drill 4 holes (tapping) on ​​the outer flange end face of the remote diaphragm of the pressure transmitter, and fix the flange with the mounting plate 2 of the instrument frame 1 with bolts. Asbestos insulation is used between. Such as Figure 4 As shown, there are four Φ12 through holes in the middle of the existing asbestos insulation layer made of asb...

AI Technical Summary

Problems solved by technology

Asbestos is a commonly used thermal insulation material in nuclear power plants, but its hardness is not high. When the flange and the mounting Additional holes are drilled on the flange of the transmitter. Such a transmitter is a non-standard design that requires special design by the manufacturer and may affect the pressure bearing capacity of the flange.

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