SU1483229A1 - Furnace for heating boiler - Google Patents

Abstract

The invention relates to a layered combustion of fuel and can be used in heating boilers. The purpose of the invention is to increase the efficiency of secondary air heating. After fuel loading through the hatch 11 and its ignition with steady burning, the furnace door 15 is covered and the damper 12 of the secondary air intake 5 is opened, through which air is sucked into the annular space, while heating in connecting pipes 9 and in the annular space from the heated coaxial walls inserts 7 and pipes 4. The heated secondary air enters the combustion zone through the perforated jumper 9 and the lower perforated portion of the pipe 4. Smoke from the combustion zone rises upwards through the inside of the insert 7 and out Dit in the chimney 3. 1 Il.

Description

The invention relates to energy and can be used in heating boilers.

The purpose of the invention is to increase the efficiency of work by heating the secondary air.

FIG. 1 shows the heating furnace of the heating boiler, a longitudinal section; in fig. 2 shows a section A-A in FIG. in fig. 3 shows a section BB in FIG.

The heating chamber 1 of the heating boiler contains: a grate grid 2 placed in the lower part, and in the upper part

.four

from the heated walls of the coaxial insert 8 and the pipe 4. The heated secondary air through the perforated jumper 10 and the lower perforated section 5 of the pipe 4 enters the combustion zone of the fuel. The combustion zone is located near the bottom of the pipe 4. Smoke from this zone rises upward through the inside of the insert 8 and exits through the furnace above the fuel and then into the chimney 3. Depending on the type of fuel and its quality, on the combustion volume, pipe 4 with an insert 8 under

parts - chimney 3 and vertical chimney or lower over the surface

bu 4 with a perforated lower section 5 connected to the secondary air intake 6, mounted for vertical movement relative to the surface of the grate 2 and equipped with connecting pipes 7 and a coaxial insert 8 fastened to the pipe 4 at the top and bottom, respectively, using an annular cap 9 and perforated jumpers 10. The connecting pipes 7 are connected to the annular plug 9 and the secondary air intake 6. In the upper side of the furnace 1, there is a loading door 11 with a door for filling the furnace 1 with fuel. The secondary air intake pipe b is equipped with a valve 12, inserted into the guides 13 in the upper part of the furnace 1 of the boiler and connected to a screw mechanism 14 for adjusting its height relative to the grate, the furnace 1 is provided with a door 15.

The furnace works as follows.

The fuel is loaded through the hatch 11 and ignited through the door 15. With steady burning, the door 15 of the firebox 1 closes and opens the door.

25

thirty

35

grate 2.

The design of the furnace allows not only to heat the secondary air before it enters the combustion zone. The secondary air, washing the walls of the pipe 4 and the insert 8, which forms the annular space, cools them, thereby reducing the fading of the pipes. As a result of the effective heating of the secondary air, the pressure coefficient of the boiler rises.

Claims (1)

Invention Formula The heating chamber of the boiler containing a grate placed in the lower part, and in the upper part a chimney and a vertical pipe with a perforated lower part connected to the secondary air intake and installed with the possibility of vertical movement relative to the grate surface, 40 that, in order to increase the work efficiency by heating the secondary air, the pipe is equipped with connecting pipes and a coaxial insert fastened to the screwdriver pipe 12 of the secondary air intake 6, g5 XY and DOWN respectively with the help of which air is sucked into the annular plug At the same time, jumpers, connecting pipes of heating in the connecting pipes are connected to the annular plug and 7 and in the annular space to the secondary air intake. 0 five 0 five grate 2. The design of the furnace allows not only to heat the secondary air before it enters the combustion zone. The secondary air, washing the walls of the pipe 4 and the insert 8, which forms the annular space, cools them, thereby reducing the fading of the pipes. As a result of the effective heating of the secondary air, the pressure coefficient of the boiler rises. Invention Formula The heating chamber of the boiler containing a grate placed in the lower part, and in the upper part a chimney and a vertical pipe with a perforated lower part connected to the secondary air intake and installed with the possibility of vertical movement relative to the grate surface, Aa FIG. 2 s "/ 9 I V g-- v fig.Z