Constant temperature and constant pressure control system of de-aerator

Abstract

The invention discloses a constant temperature and constant pressure control system of a de-aerator. The control system comprises a pressure detection unit, a temperature detection unit, a water level detection unit, a flow detection unit for detecting the flow rate at the water inlet of a de-aerated water tank in real time, a parameter setting unit, a gas supply pressure adjusting valve, a heating device, a controller for comprehensively controlling a water inlet control valve and a flow control valve, a clock circuit connected with the controller, a parameter variation amplitude reckoning system, a gas partial pressure reckoning module and an advance control scheme formulating module for correspondingly formulating transfinite advance control schemes according to the reckoning results of the parameter variation amplitude reckoning system and the gas partial pressure reckoning module. The control system is reasonable in design, convenient to install and arrange, and easy and convenient to use and operate, has high intelligence and a good using effect, and can effectively overcome multiple defects of low intelligence, inconvenience in use and operation, lagged control, poor using effect and the like of the constant temperature and constant pressure water level control system of the conventional de-aerator.

Description

technical field [0001] The invention relates to a constant temperature and constant pressure control system, in particular to a constant temperature and constant pressure control system for a deaerator. Background technique [0002] The deaerator is a thermal deaerator that works according to the law of gas dissolution (namely Henry's law). The law of gas dissolution indicates that the solubility of any gas in water is related to the partial pressure of the gas on the gas-water interface and the water temperature. High, the higher the partial pressure of water vapor, the lower the partial pressure of other gases; when the water temperature rises to boiling, the partial pressure of other gases is zero, and the other gases dissolved in water are also equal to zero. Thermal deaerators are divided into two specific types: atmospheric deaerators and pressure deaerators. Thermal deaerators heat water to the boiling point, and after the water is heated to the boiling point, the sol...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a constant temperature and constant pressure control system for a deaerator, which is reasonable in design, convenient in installation and layout, easy to use and operate, high in intelligence, and good in use effect. It can effectively solve various defects and deficiencies in the existing deaerator constant temperature and constant pressure water level control system, such as low intelligence, inconvenient use and operation, control lag, and poor use effect.

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