A rotary measuring device for gas temperature field

Abstract

Disclosed is a rotating measurement device for a fuel-gas temperature field. The rotating measurement device for the fuel-gas temperature field includes a data acquisition assembly, a driving assembly and a control system, wherein the data acquisition assembly includes a rotating body, measurement sensing-head support rods and thermocouple measurement points; the driving assembly includes a motor and a transmission mechanism; and the control system includes a computer, an A / D board, an I / O board, a controller, a signal conversion box, a position sensor, a position sensor signal, a motor control signal and a thermocouple output signal. The transmission mechanism includes a motor transmission shaft, a reduction gear mechanism and a rotating-body transmission shaft. Through rotation of the motor, a main transmission gear is driven by the motor transmission shaft to be in meshing gearing-down with a transmission gear so that the rotating-body transmission shaft drives the rotating body to rotate. Each thermocouple measurement point is fixedly installed at the top part of a comb finger of a corresponding temperature measurement sensing-head support rod. Lead wires of the thermocouple measurement points are fixed on the rotating body after being lead out from the temperature measurement sensing-head support rods and then enter a center hole of the transmission shaft and are lead out after undergoing grouping bundling and then are connected with an ice-point and connected to the signal conversion box. A bus is used to be connected to the A / D board for being connected with the computer.

Description

technical field [0001] The invention relates to a gas temperature measuring device, in particular to a gas temperature field rotation measuring device. technical background [0002] The measurement of the temperature field is generally used for the measurement of the miniature temperature field. For the measurement of the temperature field of the exhaust section of the heating system, it is also often used in the heating equipment industry. It is required that the measuring point position adopts plug-in type and fixed position measurement. For the measurement of the temperature field of high-temperature gas with high precision requirements, more measurement points are required, and the plug-in measurement will increase the blockage ratio of the exhaust section, which will cause the measurement results to deviate from the actual, and the error is large. If the batch measurement takes a long time, the effect Poor and inefficient, the labor intensity of the staff is high. For...

AI Technical Summary

Problems solved by technology

The use of relay switching circuits has large contact interference and poor reliability; the use of stepping motors, especially five-phase drive motors, has complex mechanisms and circuits, and it is easy to lose steps, and the control accuracy of the galvanic couple position is not accurate.

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