Flue gas recovery system of glass kiln heat preservation channel

Abstract

Provided in the invention is a flue gas recovery system of a glass kiln heat preservation channel. The recovery system includes: a set of heat exchanger, a gas outlet pipe (5), a steam drum (6), a circulating water pump (7) and a drain valve (8). The heat exchanger, the gas outlet pipe and the steam drum are connected successively. The heat exchanger comprises: multiple sets of finned tubes (1) in parallel, a water header pipe (2), a water inlet pipe (3) and a vapor header box (4); the water inlet pipe, the water header pipe, the finned tubes and the vapor header box are connected successively to each other. The finned tubes are filled with working medium fluid and are vacummized. Cold water is fed into the water header pipe by the circulating water pump through the water inlet pipe, is fed into the finned tubes for being heated and vaporized, and is fed upwardly into the vapor header box. The vapor is fed into the steam drum through the gas outlet pipe and is supplied to the produce process.

Description

technical field [0001] The invention relates to waste heat recovery technology, and more specifically relates to a flue gas recovery system of a glass kiln heat preservation channel. Background technique [0002] The recyclable waste heat of the glass kiln road is mainly divided into two parts, one part is the waste heat recovery of the flue gas from the combustion of the kiln body; the second part is the waste heat from the fuel combustion and exhaust gas of the glass liquid circulation channel. The heat recovery system involved in this patent is the second part, wherein the flue gas in this part is generally divided into 5 exhaust outlets, and the exhaust gas temperature is about 1000 degrees Celsius. The pool kiln is different from the boiler. The boiler uses fuel to generate steam or heat other media, and the steam or medium releases heat in the place where the heat is used. Therefore, the calorific value contained in the flue gas is compared with the calorific value con...

AI Technical Summary

Problems solved by technology

The pool kiln is different from the boiler. The boiler uses fuel to generate steam or heat other media, and the steam or medium releases heat in the place where the heat is used. Therefore, the calorific value contained in the flue gas is compared with the calorific value consumed by the entire boiler fuel. The flue gas The proportion of calorific value contained is very low, and the fuel combustion of the glass liquid insulation channel is different. The calorific value of the gas consumed by the pool kiln is only used to keep the glass liquid in a molten state, and it is enough to balance the natural heat exchange of the glass liquid. Most of the remaining heat is directly discharged into the atmosphere, and there is a large space for heat recovery. Therefore, it is a problem that should be solved to develop a waste heat recovery system that can be used to recover glass kiln flue gas.

Images