SU89472A1 - Water heater sectional tubular boiler - Google Patents

Description

A sectional tubular boiler is provided with smoke tubes that pass through the water heaters.

The proposed boiler differs from the known themes. that, in order to ensure the dismantling of sections for cleaning water-heating pipes from scale, the smoke-fired pipes with one end are welded into the removable cover of the upper collector, and the others with the removable cover of the lower collector. Thermal insulation has been used to protect the threaded joint from the undesirable effects of gases.

FIG. 1 shows a diagram of a water-heated sectional tubular boiler; in fig. 2 is a section along AA in FIG. 3; in fig. 3-section BB in FIG. 2; in fig. 4 is a section along the explosive in FIG. 2

The sections of the boiler consist of boxes / and 2. of which the first forms a vebny collector, and the second forms a collection manifold. The boxes / and 2 are rigidly interconnected by hot-water pipes 3. Through the boxes / q 5, hot-water pipes 5 pass smoke-burning pipes 4 of smaller diameter, provided with a thread at the lower end.

The smoke tubes with the upper pipes are welded into the removable cover 5 of the upper collector, and the lower stacks with the thread pass freely through the removable cover 6 of the lower collector. The assembled section with nuts 7, which are screwed onto the threaded ends of the flue tubes 4, is tightened, thus forming a completely reliable collapsible section.

The threaded connection of the section is located in the area of flue gases with a temperature of about 250-300 °, which reduces the harmful effects of hot gases on the connection, and to fully protect this compound from direct exposure to gases, it is closed by thermal insulation (not shown in drawing).

The smoke tubes in this section construction are used in the same way as straps when connecting the boiler manifolds.

AO 89472-2 -

Such a design of the collapsible section of the boiler provides easy disassembly of sections for cleaning hot water pipes 3 from the pipe, and also eliminates the conditions for sticking and burning nuts to the pipe in iviecTax threads.

The gases from the furnace rise upwards, washing the outside of the pipe, then they enter the flue pipes 4, pass them downwards and are discharged into the collecting burs. The feed water from the lower boxes 2 through the water heating pipes 3 rises to the upper boxes 1, from where it is diverted to the consumption.

Subject invention

1. Hot-water sectional tubular boiler with chemical chambers passing through hot-water pipes, characterized in that, in order to ensure assembly of sections for cleaning water-heating pipes from scale, the fire-fighting pipes are welded to the removable roof of the upper collector with one end and screw connection sop) with a removable lid lower stake, (; - ktor a.

2. In boiler no. I, the use of thermal insulation to protect the threaded joint from direct exposure to gases.

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