High-temperature resistant infrared radiation plate

Abstract

The invention provides a high-temperature resistant infrared radiation plate long in service life and suitable for boilers. The infrared radiation plate is mounted on the inner wall of a boiler for greatly improving the infrared radiation capacity of the inner wall of the hearth so as to increase the energy utilization rate. A plurality of mounting through holes are formed in the high-temperature resistant infrared radiation plate, wherein an infrared radiation layer is arranged on one side of the high-temperature resistant infrared radiation plate while a thermal-protective layer is arranged on the other side of the high-temperature resistant infrared radiation plate; the high-temperature resistant infrared radiation plate can be fixed in the hearth through anchoring pins so as to allow the infrared radiation layer to radiate the energy onto a heat-producing workpiece uniformly; an insulation layer is arranged on the back surface of the infrared radiation plate for allowing the energy to be transferred to the heat-producing workpiece through radiation as much as possible, reducing the possibility that flame is in contact with the fireproofing material surface of the boiler hearth directly, prolonging the service life of a kiln boiler and improving the economical performance. The high-temperature resistance infrared radiation plate is convenient for mounting and dismounting, long in service life, firm and reliable, can increase the energy utilization rate and prolong the service life of the boiler greatly, and has excellent wide popularization value.

Description

technical field [0001] The invention relates to a high temperature resistant infrared radiation plate. Background technique [0002] my country's industrial kilns and industrial boilers are the main body of energy consumption, and industrial kilns and industrial boilers generally have low thermal efficiency and relatively large energy waste. The heat transfer in the industrial furnace furnace includes: flame radiation, combustion product radiation, solid surface radiation of the furnace wall, gas radiation in the furnace, and convective heat transfer of the gas in the furnace. To put it simply, there are three basic objects involved in the heat exchange process in the furnace: furnace gas, furnace wall, and heated calcined objects. Below 800°C, the heat transfer between the furnace gas and the heated object mainly depends on convection heat transfer; between 800°C and 1000°C, it relies on convection and radiation at the same time, and when the temperature is higher than 100...

AI Technical Summary

Problems solved by technology

[0003] However, the fundamental weakness of the far-infrared coating technology is that the coating is easy to age. During actual use, it will continue to pulverize and fall off or be eroded by the airflow. The thermal infrared emissivity will gradually decay, lose the infrared radiation function, and the thermal efficiency will decrease with time.

Images