MD3632C2 - Hot-water boiler - Google Patents

Abstract

The invention relates to the heat engineering and may be used in the water heating systems, as well as for domestic water heating.The hot-water boiler contains a body with water jacket, equipped with a branch pipe for waste gases, a combustion chamber, equipped with a burner, water inlet and outlet pipes, hollow horizontal elements with convective heating surfaces, coupled with the water jacket and forming a gas channel in the form of labyrinth, and a domestic water heater. Novelty of the invention consists in that the boiler additionally contains a hollow partition with convective heating surfaces, coupled with the water jacket and divides the gas channel, forming its descending part, wherein in the lower part there is placed a branch pipe for waste gases, equipped with a gate valve, pipe heat exchangers, coupled with the water jacket and placed along the full length of the gas channel and in the combustion chamber, a hollow element, equipped with an inclined convective heating surface and coupled with the water jacket, soot removing hatches and a safety valve, coupled with the gas channel. The domestic water heater is made in the form of an accumulating capacity, installed into the body and equipped with an electric heater and a thermal relay.The result of the invention consists in intensifying the heat transfer by increasing the time of waste gas contact with the convective heating surfaces, in increasing the efficiency and simplifying the construction of the domestic water heater.