RU1796048C - Hot-water boiler - Google Patents

Abstract

Usage: in heating equipment, namely in steel hot water boilers operating in systems with pump circulation and intended for heat supply of buildings. SUMMARY OF THE INVENTION: The boiler comprises a hopper, an air duct with an air duct, an ash pan, a combustion chamber. In the upper part of the combustion chamber, heating surfaces are installed, separated by partitions with openings for the passage of flue gases to the radiation and convection sections. In the last convection section along the gases, a box-type air heater is installed, connected to the boiler ducts, made in the form of channels in the side walls of the combustion chamber with outlet sections. Kolosnikov lattice is assembled from grid-irons made of T-shaped sections. 6 c.p .; f-ly, 6 ill. ate with

Description

The invention relates to heating equipment, and more particularly to steel hot water boilers operating in systems with pump circulation and intended for heat supply to buildings of various types,

Water-heating boilers are known that include an electric heat generator for forcing heated air to be heated under the grate, a fuel chipping mechanism.

The main disadvantages of this boiler unit are the low efficiency of the burned fuel and high energy consumption.

A grateless grate is known, the web of which is composed of two types of grate with zigzag slots serving to supply air. Cutouts are made in the head of one of the grates to direct air vertically to the grating web.

The disadvantages of this lattice are the notch of joints for changing the living cross section and the complexity of its maintenance.

. Closest to the invention of the known technical solutions is a sectional type hot water boiler

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increased heat transfer of the heating surface.

However, the well-known hot water boiler has high energy consumption for heating the air, its low flow under the grating sheet, and the efficiency of the fuel burned is low.

An object of the invention is to increase fuel combustion efficiency and reduce energy costs.

This goal is achieved in that the boiler contains a coal hopper 1, an air box 2 with an air duct 3, an ash pan 4, an external combustion chamber 6 bounded by the walls 5, the latter and the ash pan being separated from the air ducts by a grate 7 with a screwing bar 8 and a wall, and heating surfaces 9 are installed in the upper part of the combustion chamber, separated by partitions 10 with openings 11 for the passage of flue gases to radiation 12 and convective 13 sections. The radiation heating surface is made in the form of a tent of registers. In the last convection section of the boiler along the gases, a box-type air heater 2 is installed, connected via a metal duct 3 to the boiler ducts 14, made in the form of channels in the side walls of the combustion chamber with exit sections 15, two of which are located symmetrically at the front wall of the combustion chamber.

The Kolosnikov lattice is assembled from the grid-irons 16 made T-shaped in the Current, and each pair of grid-irons contains longitudinal channels 17 located between the lower additional shelf and one of the upper ones, which has openings along the entire generatrix. Width

lower shelf by 1 / 4-1 / 3 exceeds the upper and equal to the width of the other upper. The upper shelf is mounted above the lower one at a distance of 1/2 of its thickness, and forms a longitudinal channel, the grate is provided with two grate 18 made with additional vertical ribs. Both grates with additional ribs are mounted from

the walls of the combustion chamber at a distance of 1 / 4- 2/9 of the width of the latter.

The main difference between the proposed hot water boiler from the known prototype is the possibility of complete combustion

fuel with high efficiency, due to the supply of heated air to the combustion chamber under pressure, evenly distributed over the entire area of the grate.

Figure 1 presents a General view of the boiler; figure 2 is a General view of the boiler in the context of figure 1; in Fig.Z - section bB of Fig.2; figure 4 is a section bb In figure 2; figure 5 - node I of figure 2; Fig.6 is a section aa of Fig.2.

Example, A boiler of this design is operated on the central estate of the Kirovsky state farm in Primorsky Krai and has shown great advantages over the previously operating Energy-6 boilers.

All coal feeding and ash removal work are fully mechanized. Mounted mechanical feed of coal to the grate. The design of the grate has allowed to continuously maintain the optimal combustion mode in the boiler.

The creation of this boiler allowed the state farm to halve the number of stokers, halve coal consumption, and radically improve working conditions.

stokers.

Claims (7)

SUMMARY OF THE INVENTION 1. A water boiler comprising a hopper equipped with a hopper, an air duct with an air duct and an ash pan, a remote combustion chamber bounded by the walls, the latter and the spool being separated from the air duct by a grate with a screwing bar and a wall, respectively, and heating surfaces are installed in the upper part of the combustion chamber separated by partitions with openings for the passage of flue gases into the radiation and convective sections, the first of which is made in the form of a tent, distinguishing and so that reducing energy consumption by increasing the combustion effektivnosti1, further comprising a box-like heater disposed in the latter along the gas convection section and connected by said duct to the air duct. 2. The boiler according to claim 1, wherein the duct is made in the form of channels in the side walls of the combustion chamber, the outlet sections of two of which are located symmetrically at the front wall of the combustion chamber. 3. The boiler according to claim 1, wherein each grate of the grate has a T-shaped cross-section with a protrusion under one of the shelves, made with holes along the length, located with the formation of this and adjacent shelves of another grate and longitudinal channels. 4. A boiler according to Claim 3, characterized in that the protrusion is made wider by 1 / 4-1 / 3 the width of the shelf located above it and equal to the width of the other shelf of this grate. 5. A boiler according to claim 3, characterized in that the height of the longitudinal channel is 0.5 of the thickness of the protrusion. 6. The boiler popp.1iZ, characterized in that on the solid shelves of two non-adjacent grates vertical ribs are made, 7. A boiler according to claim 6, characterized in that said two grid-irons with ribs are installed from the walls of the combustion chamber at a distance of 1 / 4-2 / 9 of the width of the latter. 0IA and/ 1796048 e-c (rig. 5  . /: .av.-..- Ј - ..: +. J- & ..,.: 7 1796048 Aa FIG. 6