SU63484A1 - Water Tube Steam Boiler - Google Patents

Description

The invention relates to steam water tube boilers with flat end chambers connected by a bundle of horizontal heating pipes, and an economizer connected to the upper drum, through which the smoke pipe of the combustion device is passed. In the proposed boiler economizer made in the form of a set of boiler installation, located above the drum of the boiler. The arched part of the economizer bottom, together with the upper part of the drum, forms a semi-cylindrical slit gas duct, the upper step of which is a cooling screen, which prevents the steam part of the drum from overheating and prevents the gases from burning in the gas duct. Together with this, the proposed design promotes better utilization of the heat of the waste gases and increases the efficiency of the plant.

In FIG. 1 shows a longitudinal section of the boiler; FIG. 2 is a section along AB in FIG. 1, and FIG. 3- view of the boiler from the front.

In the proposed water-tube boiler, a cylindrical drum 1 is connected by pipes 9 with a non-harming and rear flat end chamber P1 2, interconnected by a bundle of horizontal heating pipes P. Each chamber 2 is equipped with a removable common pipe for changing pipes. a lid 5, installed and pressed against the case and, unlike the commonly used individual lids and lids, which are inserted and installed from inside the chamber. The boiler is installed on the wall directly above the firebox 12.

To prevent circulation in the horizontal bundle of heating tubes in the rear chamber 2, a metal board 6 is installed directly at the ends of the pipes, equipped with a safety device according to the number of heating pipes 11 in such a way that one hole of the board is located against each pipe. The diameter of the openings of the board 6 located along the axes of the pipes 11, smaller than the diameter of the heating pipes, as a result of which the board with openings does not hinder the passage of circulating water into the pipes, is a non-return valve that prevents the flow of steam or the emulsion against the direction of natural circulation. On the brickwork of the boiler, a nutrient tank-ecopomizer 4 is installed, which is the roof of the boiler room. The bottom of the tank is economy., Cylindrical: concave and fit; 6; it forms a semi-cylindrical slit gas duct 3 with the upper part of the latter; 1); to the common exhaust pipe 10 of the boiler plant. The gas chambers, lodim from the furnace 12, are successively heated boiling pipes 11, the lower part and the smoke sides of the drum 1 p are fed into the flue 3. The bottom surface (bottom) of the economizer, perceived as a shield and heat from their gases, prevents the surface from overheating steam drum design. The reduction in temperature that occurs in this way prevents the burning of gases, which usually threaten the heated steam section of the boiler. In order to blow the outer surface of the heating pipes B, a bundle of these pipes is inserted through a hole in the side wall of the brickwork a tubular blower 7, located across the axis of the beam pipes and fitted with nozzles, giving them the ability to blow in parallel and perpendicular smallpox blowing pipes when the instrument tube is unfolded. The proposed low-power steam boiler is very suitable for the needs of public utilities, for example, banking laundries. The design of the structure allows the manufacture of the boiler by means of non-specialized workshops. The furnace of the boiler is very simple due to the construction and gives the Possibility of using iso-grade low-grade oil. The proposed boiler plant has an increased efficiency efficiency, which is compatible with existing boilers of the same capacity with less metal consumption. APPENDIX and Water Tube Steam Boiler with end-chamber ui, connected with a horizontal bundle of heating tubes, and with a drum fitted with an economizer, through which a furnace device is passed through, t and the fact that the economizer is made in the form of a set of boiler installation, enclosing the upper part of the boiler drum with the formation of a semi-cylindrical slotted duct, in order to protect the walls of the steam space of the boiler from overheating and prevent burning of gases, as well as utilization and the heat of the latter in the flue.

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