Mechanical cabinet position converter of gas tank

Abstract

The invention relates to a mechanical cabinet position converter of a gas tank, which belongs to the technical field of measurement. The mechanical cabinet position converter is arranged on a corridorsteel structure of the gas tank; a signal converter arranged on a bracket in a protection cover is connected with the mechanical cabinet position converter through a flexible coupling; and the signalconverter is also connected with a digital-analog converter arranged in an explosion-proof tank through a special explosion-proof cable. The mechanical cabinet position converter of the gas tank adopts a measurement mode of the combination of a coder, the flexible coupling, the bracket, the external digital-analog converter and the explosion-proof tank to convert signals of the mechanical cabinetposition converter of the gas tank so as to convert the signals of the mechanical cabinet position converter into standard 4-20 mA DC signals and send the signals to a basic automatic control system,thereby better monitoring the safe operation of the gas tank. The novel mechanical cabinet position converter not only can be used in dry type gas tanks, but also can be used in Man-type tanks.

Description

technical field [0001] The invention belongs to the technical field of measurement, and relates to a gas cabinet mechanical cabinet conversion meter. Background technique [0002] In the gas cabinet engineering project, in order to better control the operation of the gas cabinet, it is necessary to design a mechanical counter meter, and at the same time choose a radar or laser counter meter. The two devices are mutually backup and run simultaneously. The measurement error of this equipment is required to be as small as possible (the process usually requires less than 1m). [0003] In the engineering design of the gas cabinet, the instrument professional must equip the mechanical counter meter selected by the gas process with a device called a signal converter, so as to convert the signal measured by the mechanical counter meter into a standard 4~ The 20mA DC signal is sent to the basic automatic control system to achieve the purpose of monitoring the operation status of the...

AI Technical Summary

Problems solved by technology

[0004] 1) First of all, the price is expensive, each set is about 120,000 to 150,000 yuan, and the price is increasing year by year;

[0005] 2) Since the mechanical counter gauges designed by the process are all non-standard equipment, for each gas tank capacity, the number of rotations of the coupling in the normal stroke and the accident stroke is not an integer number of turns. Therefore, the corresponding instrument As far as the standard signal output of the signal converter is 4 ~ 20mA DC, repeated modifications are required during on-site debugging. At the same time, the manufacturer of the mechanical counter meter must cooperate with the modification of its coupling on site to basically meet the process design requirements. The accuracy is not high, and the measurement error is often large;

[0006] 3) On-site repeated debugging and repeated modification of the process coupling equipment will result in a large waste of manpower and low work efficiency

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