Corrosion protection on-line detection device for thermodynamic system for hot water boiler

Abstract

The invention discloses a corrosion protection on-line detection device for a thermodynamic system for hot water boiler, which comprises a hot water boiler body, wherein a heating device is arranged on the left side of the hot water boiler body, a nitrogen conveying device is arranged on the right side of the hot water boiler body, a breather pipe is arranged on the upper portion of the hot water boiler body, a low-level thermal deaerator is arranged at the tail end of the breather pipe, the low-position thermal deaerator comprises a tank body, and an air inlet is formed in the left side of the tank body. According to the invention, the nitrogen conveying device is arranged at the input end of the hot water boiler, when the hot water boiler stops running, nitrogen can be conveyed in time, so that air in the hot water boiler is exhausted, and corrosion is reduced; and the breather pipe is arranged at the upper part of the hot water boiler, the low-position thermal deaerator is arranged at the upper part of the breather pipe, the air inlet is formed in the left side of the low-position thermal deaerator, a magnetic turning plate water level gauge and a water seal cylinder are arranged in the low-position thermal deaerator, and a pressure gauge and a thermometer are arranged on the surface of the tank body, so that the internal condition of the tank body can be known in real time.

Description

technical field [0001] The invention relates to the technical field of on-line detection devices, and more specifically relates to an on-line detection device for corrosion protection of a thermal system for a hot water boiler. Background technique [0002] During the long-term standby period of thermal power generation equipment, nitrogen filling protection method, dehumidification drying method or injection of ammonia-added desalted water are usually used to prevent outage corrosion inside the thermal power system. The nitrogen filling protection method requires the nitrogen purity in the system to reach more than 98%, and it is judged whether the nitrogen purity meets the requirements by detecting the oxygen content in the system; the dehumidification and drying method requires the relative humidity inside the control system to be in a low range; the water injection protection method requires that the system internal The pH value of the protection solution reaches 10.0-10...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an on-line detection device for thermal system corrosion protection for hot water boilers, which solves the problem that most of the existing detection devices perform sampling detection under dynamic conditions, but cannot increase the pressure and monitor the internal medium when the filter is out of service parameters, the actual protection effect cannot be accurately regulated

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