SU6103A1 - Steam boiler - Google Patents

Description

 In the proposed steam boiler, in order to make it more compact, vaporization does not occur under the direct action of combustible gases on the walls of the boiler, but their heat is transferred using a low-melting metal into which the boiler is immersed.

In FIG. 1 shows a vertical longitudinal section of the proposed boiler and FIG. 2 shows a section along the line AB in FIG. one.

The device and operation of the proposed boiler is as follows. Hot gases from an ordinary or pulverized firebox through chimneys 1 made of refractory material are supplied to the inner side of the rim 2, which consists of a thin metal wire and is attached to a rotating disk 3, and between the individual wires located around the rim circumference

there is free space for passage of flue gases. The lower part of the disk 3 is lowered into the vessel 4, 5, filled with some low-melting metal, for example, typographic metal, tin or lead. Vessel 4, 5 is formed by bath 4 and a low cap 5 above it, somewhat shorter, one wall of which is lowered slightly below the level of the molten metal. The air from under the cap 5 is exhausted, so the molten metal fills the space under the hood. In this space, a boiler b is placed, in the upper part of which there is a steam tank 7 with a steam discharge pipe 8 leading to the steam superheater 9, where the steam is overheated due to the heat of gases coming out of the rim 2. The vessel 4.5 is made of brick or outside is covered with bad conductor of heat. The disk3 is also surrounded on all sides by the jacket 10 of a material that does not conduct well in heat. The metal in the vessel4.5 is pre-melted by means of a burner II, after which the disk 3 is brought into not very fast rotation by means of a small motor; further, hot gases are allowed from the furnace, which go through chimneys 1 and heat the rim 2 of the disk 3, the passage between the wires and heat them up to about 300 ° during one revolution of the disk 3. After that, the wires of the rim 2 are immersed in the molten metal of the vessel 4, passing it to heat. Upon further rotation of the disk 3, this part of the rim passes in front of all chimneys 1 and is heated by hot gases from the furnace, etc. From the molten metal, heat is transferred through the walls of the boiler to water, which will have, for example, a temperature of about 260 ° with an appropriate pressure couple. Steam from the boiler passes through pipe 8 to the superheater 9, heated by 2 hot gases of the furnace passing through the rim.

For better heat transfer to the boiler in vessel 4, a lionfish 10 is poured in, which will cause the molten metal to circulate from the rim 2 to the top of the cap 5, and thence along the walls of the boiler back to the rim of the disk 3. In the case of

pulverized firebox along with hardened gases coming from the chimneys 1 to the rim 2 will transfer the ash, which will partly settle on the rim and get into the molten metal; due to its lower specific weight, ash floats to the surface, from where it can be removed with a stream of air or steam.

The subject of the patent.

A steam boiler characterized by the use of: a heat transferring rim 2 (Fig. 1-2), consisting of a row of wires attached to a rotating disk 3, enclosing chimneys 1, 1, 1 guiding hot gases and immersed in the vessel 4 , 5, filled with molten low-melting metal, into which the entire boiler b, 7 is immersed, equipped with a steam superheater 9 located in the chimney above the rim 2 above, prior to the start of Heat Transfer, for the preliminary melting of the low-melting metal, the burner 11 is installed, and l better heat transfer to the boiler B, impeller 7 is set to 10, derivatives conductive circulating the molten metal, at what rim 2 with the disk 3 are surrounded by a jacket 10 of heat poorly conductive material.

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