Steam humidity measuring device and method thereof

Abstract

The invention discloses a steam humidity measuring device and a method thereof. The steam humidity measuring device comprises a sampling pipe, a measuring pipe, a regulating valve, a cooling device and a metering tank, wherein an inlet of the sampling pipe is provided with a platinum resistor; an outlet of the sampling pipe is connected with an inlet of the measuring pipe; an outlet of the measuring pipe is connected with the cooling device through the regulating valve; the measuring pipe is internally provided with pore plates, a pressure and temperature sensor, a heater and a temperature sensor in sequence from the inlet to the outlet; an outlet of the cooling device is provided with a three-way valve; two outlets of the three-way valve are connected with a water draining pipe and a water dripping pipe respectively; the metering tank is located below the water dripping pipe; the bottom of the metering tank is provided with a water discharging valve; and the lower part of the meteringtank is provided with force sensors. The steam humidity measuring device and the method thereof can be used for measuring the steam humidity in a boiler barrel on line; and the measuring device is relatively simple and is high in overall accuracy.

Description

technical field [0001] The invention belongs to the technical field of steam humidity measurement, and in particular relates to a steam humidity measurement device and a method thereof. Background technique [0002] In steam boilers and steam heating systems, the measurement and control of steam humidity is of great significance for ensuring the safety and economic operation of equipment and product quality. [0003] At present, there are many principles and methods for steam humidity measurement, such as chlorine radical method, throttling method, optical method, tracer method, ultrasonic method, microwave method, capacitance method, etc. Chlorine method is widely used at present, but the measurement is complicated and the error is large; the throttling method is simple in principle and has good reproducibility, but it is not very accurate; the optical method can be measured online, but it is more expensive and the measurement results are random. The conditions are harsh; ...

AI Technical Summary

Problems solved by technology

Chlorine method is widely used at present, but the measurement is complicated and the error is large; the throttling method is simple in principle and has good reproducibility, but it is not very accurate; the optical method can be measured online, but it is more expensive and the measurement results are random. The conditions are harsh; the tracer method is accurate, but not online, expensive, and complicated to operate; ultrasonic, microwave, and capacitance methods are still in the research and development stage, and are not suitable for steam humidity measurement at higher temperatures

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