Cooling system for power station boiler high-temperature wall infrared detection device

Abstract

The invention discloses a cooling system for a power station boiler high-temperature wall infrared detection device. The cooling system is formed by a long-tube-shape endoscopic lens, an infrared CCD camera, a cooling system, a support and a slide device. The lens is supported to the inner wall of an inner sleeve of a wind clamp pipe through a fixation ring; the fixation ring is circumferentially provided with a loop of vent holes; the outer wall of an outer sleeve of the wind clamp pipe is connected to a guide rail of the support through the slide device; the lens can move along the axial direction of the lens with the wind clamp pipe; the back end of the lens is connected with the outer wall of the inner sleeve of the wind clamp pipe through an adjustment flange; the lens can adjust image direction and vision field angle through the adjustment flange; the infrared CCD camera is externally sleeved by an air-cooling housing; the front edge of the support is provided with an annular wind groove; the wind clamp pipe, the air-cooling housing and the annular wind groove are respectively provided with an air inlet of cooled compressed air; and the cooled compressed air flows into a furnace through the wind clamp pipe and forms a protection air film to prevent the heat of high-temperature smoke gas in the furnace from entering the lens, and reduce pollution effect of flying ashes in the smoke gas on the lens, and thus cooling and protection of the endoscopic lens are realized.

Description

technical field [0001] The invention relates to a temperature monitoring lens cooling device for a power station boiler, in particular to a cooling system for a power station boiler high temperature wall surface infrared detection device. Background technique [0002] Important components such as the four tubes of power plant boilers not only withstand high temperatures, but are also particularly sensitive to over-temperature. Due to the limitations of contact temperature measurement and the difficulty of measuring tube wall temperature, over-temperature tube explosion accidents on the high-temperature heating surface of large-scale power plant boilers are rare. Therefore, the on-line monitoring of the wall temperature of the high-temperature heating parts is an urgent problem to be solved for the safe and stable operation of the boiler; in addition, the measurement of the temperature field has important effects on the generation of pollutants, the control of the boiler and t...

AI Technical Summary

Problems solved by technology

When the temperature monitoring lens is inserted into the power plant boiler to monitor the temperature of the inner wall of the boiler, on the one hand, the heat of radiation and high-temperature flue gas will cause the temperature of the lens and infrared camera to rise, which will affect the working performance of the lens; on the other hand, the high-temperature flue gas will And the fly ash in the furnace also seriously interferes with the safety of the lens

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