Water vapor sampling device for heating system of thermal power plant, nuclear power plant two system and petrochemical industry, on-line chemical analysis of steam quality measurement, monitoring circuit. Device is widely used in all kinds of 600MW supercritical units, different parameter class unit, device main functions are as follows: to provide representative chemical products for the user supervision, on-line analysis of samples, sample quality by PLC, computer network, to realize remote monitoring of the main characteristics of chemical, water and steam quality device adopted the company's three patents, has the following distinctive features.
Water vapor sampling device

The main road (double sample temperature, overpressure) interrupt device cooling water loop protection system, like water over temperature protection device, in the outlet water was cut off like lead, to achieve the main road protection protection system. The original increasing water flow detection by using the closed-loop protection method is more advanced than the environmental, safety device reliable. Coarse filter, fine filter two filters from the high pressure filtration of high temperature cleaning and reasonable collocation (using the back washed, filter maintenance free) of coarse filtration of the sample after cooling, reducing electrode pollution, high pressure filter internal flow direction 180 degree switch, two filtering device maintenance reasonable collocation, minimum quantity of sample water to achieve three. Constant parameters
The constant pressure and constant pressure valve outlet pressure constant flow, constant - current limiting to kind of artificial 500~700ml/min, to solve the artificial sample, instruments of mutual grab water temperature constant - precise control of constant temperature device, constant water temperature all like 25 + 1 degrees.