Flue gas heating device for high variable negative pressure environment

Abstract

The purpose of the invention is to provide a flue gas heating device for high variable negative pressure environment. The flue gas heating device is characterized in that the flue gas heating device is composed of an air fan, an air supply loop pipe, an air valve set, a natural gas supply loop pipe, a natural gas valve set, a burner and an electrical control box, wherein the burner is composed ofa burning barrel, an ignition gun, a flame detector, a temperature sensor, an air inlet, a natural gas inlet, a jet gas bin and a burning bin, and the electrical control box is provided with a touch screen, a PLC controller, an input and output module, a contactor, a relay, a circuit interrupter and a terminal assembly. The whole flue gas heating device for the high variable negative pressure environment is clear in structure and thought and easy and convenient to operate, on-site pressure, temperature, flow quantity instrument signals are collected through the input and output module of the PLC controller inside electrical control equipment, normal ignition can be performed under the high negative pressure environment, not taking off the fire is avoided, generation of carbon monoxide in the burning process is reduced, smoke passage installation can be realized, and furnace inside burning is performed, so that heat loss and waste are avoided.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a flue gas heating device used in a high variable negative pressure environment. Background technique [0002] The existing natural gas combustion equipment on the market is basically divided into two categories: one is a complete set of products, the equipment is integrated, and this type of product is basically produced with reference to foreign burners; the other is a set of devices, which are installed separately. Generally, it is independently developed by domestic manufacturers after digesting the technology; at present, domestic burners mostly burn under slightly positive or slightly negative pressure environments, which cannot well meet the needs of some special environments in the market. In the case of variable negative pressure, there will be misfires or misfires during use and insufficient combustion, resulting in a large amount of combustion process products, that is...

AI Technical Summary

Problems solved by technology

[0002] The existing natural gas combustion equipment on the market is basically divided into two categories: one is a complete set of products, the equipment is integrated, and this type of product is basically produced with reference to foreign burners; the other is a set of devices, which are installed separately. Generally, it is independently developed by domestic manufacturers after digesting the technology; at present, domestic burners mostly burn under slightly positive or slightly negative pressure environments, which cannot well meet the needs of some special environments in the market. In the case of changing negative pressure, there will be misfires or misfires during use and insufficient combustion, resulting in a large amount of combustion process products, that is, carbon monoxide emissions.

Images