RU38904U1 - WATER BOILER - Google Patents

Abstract

The utility model relates to a power system, namely, to water heating devices, and can be used for heating residential and industrial premises. The hot water boiler contains a housing in which a combustion chamber with a door, a grate and a blower is placed, with the formation of a water jacket between the housing and the combustion chamber, connected to the direct and return pipelines. New in the device is that in the upper part of the combustion chamber from the side of the back wall there are horizontally connected pipes connected with a water jacket, the back wall is installed with an inclination inside the combustion chamber, the grate is made of pipes located along the base of the combustion chamber and also included in water jacket, under the grate there is an ash box having a length greater than the length of the base of the combustion chamber and the front wall covering the blower. The side walls of the combustion chamber have vertically mounted] -shaped pipes connected with a water jacket. The grate pipes are inclined to the front wall of the combustion chamber. This allows you to significantly increase the heating surface of the water jacket and, thereby, increase the efficiency of the boiler.

Description

The utility model relates to a power system, namely to water heating devices, and can be used for heating residential and industrial premises.

A water-heating boiler is known, comprising a housing, the side walls of which are formed by water-cooled screens and a combustion chamber located in the housing, the screens being gas-tight and located at an equal distance from the end walls of the furnace with the formation of openings for the passage of gases, and connected to direct and return pipelines (see description to the AS of the USSR No. 1121550, declared 13.09.83., publ. 30.10.84., CL F 24 H 1/32).

Salient features: hot water boiler; case with water-cooled screens; a combustion chamber located in the housing;

direct and return pipelines connected to water-cooled screens are common with the claimed object.

Known hot water boiler has a complex structure and significant metal consumption.

The closest set of essential features to the claimed (prototype) is a hot water boiler containing a housing in which a combustion chamber with a door, a grate and a blower is placed, with the formation of a water jacket between the housing and the combustion chamber, connected to direct and return pipelines (see Description of the invention to the AS of the USSR No. 1474390, claimed 01.12.86., publ. 23.04.89., CL F 24 H 1/00).

Common essential features of the prototype and the claimed technical solution are: hot water boiler; housing; a combustion chamber located in the casing with a door, a grate and a blower, a water jacket formed between the casing and the furnace

camera connection of a water jacket with direct and return pipelines.

This boiler has a low efficiency, due to the insignificant heating surface of the water jacket.

The problem to which the present utility model is directed is to significantly increase the heating surface of the water jacket and thereby increase the boiler efficiency.

The problem is solved in that in a boiler containing a rectangular casing in which there is a combustion chamber with a door, a grate and a blower, with the formation of a water jacket between the casing and the combustion chamber, connected to the direct and return pipes, according to the utility model, in the upper pipes connected to the water jacket are horizontally located on the part of the combustion chamber from the back wall side, the back wall is installed with an inclination inside the combustion chamber, the grate is made of pipes, located along the base of the combustion chamber and also included in the water jacket, an ash box is placed under the grate, having a length greater than the length of the base of the combustion chamber and the front wall covering the blower.

The side walls of the combustion chamber have vertically mounted j-shaped pipes connected with a water jacket.

The grate pipes are inclined to the front wall of the combustion chamber.

The execution in the upper part of the combustion chamber from the side of the rear wall of horizontally arranged pipes connected with a water jacket can significantly increase the heating surface of the boiler.

The implementation of the grate from pipes located along the base of the furnace chamber with an inclination towards its front wall and the inclusion of pipes in the water jacket increases the rate of natural circulation of water, improves heat transfer and significantly reduces the likelihood of burnout of pipes.

The location of the back wall with a slope inward into the combustion chamber allows to reduce the length of the grate tubes and the length of the ash box, which reduces the overall dimensions of the product and its metal consumption.

The execution on the side walls of the combustion chamber of vertically mounted j-shaped pipes associated with a water jacket also allows you to increase the heating surface.

The presence of an ash box having a length greater than the length of the base of the combustion chamber, with a front wall covering the blower, allows without additional devices to control the air supply to the combustion chamber, while ensuring complete collection of ash.

These essential features distinguish the claimed hot water boiler from the prototype.

In the future, the utility model is illustrated by a description of its design and drawings, where:

figure 1 schematically shows a longitudinal section of the proposed hot water boiler in a simplified form;

figure 2, schematically shows a longitudinal section of the proposed hot water boiler with vertically mounted j-shaped pipes on the side walls of the combustion chamber and with an additional heating surface obtained by the formation between the housing cover and the combustion chamber cover of additional space for a water jacket;

figure 3, schematically shows a cross section of the boiler along aa in figure 2.

The boiler comprises a housing 1 having, for example, a rectangular shape. In the housing 1 there is a combustion chamber 2 with a door 3, a grate 4 and a blower 5. A water jacket 6 is formed between the housing 1 and the combustion chamber 2. Pipes 8 are connected horizontally in the upper part of the combustion chamber 2 from the side of its back wall 7 jacket 6. The rear wall 7 is installed with an inclination inward to the combustion chamber 2 In the lower part of the combustion chamber 2 there is a grate 4, which is made of pipes located along the base of the combustion chamber 2 and also included in the water jacket 6. Ears the new grate 4 have an inclination to the front wall of the combustion chamber 2. Under the pipes of the grate 4 there is a drawer ash box 9, blown over with its front wall 10. The length of the ash box 9 is longer than the length of the base of the combustion chamber 2. The stove can serve as a cover for the furnace 11 with burners 12 (see figure 1). Water jacket 6 is connected to direct 13 and return 14 pipelines.

To increase the heating surface of the boiler on the side walls of the combustion chamber 2 can be installed vertically j-shaped pipes 15 associated with a water jacket 6 (see Fig. 2, 3).

An additional heating surface of the boiler can be obtained by forming between the lid of the housing 1 and the lid of the combustion chamber 2 additional space for the water jacket 6 (see figure 2, 3).

The hot water boiler operates as follows.

First, coal is loaded into the combustion chamber 2, the ash box 9 is partially extended, opening the space between its front

the wall 10 and the blower 5. Due to this, air is supplied to the combustion chamber 2.

When coal is burned, the walls of the combustion chamber 2 are heated and heat is transferred to the water in the water jacket 6. The most intense water is heated in the pipes 8, horizontally located in the upper part of the combustion chamber 2 from the side of its rear wall 7 (see in FIG. 12). Additionally, the water is heated in the pipes of the grate 4, which are tilted to improve the natural circulation of water, which improves heat transfer and significantly reduces the likelihood of burnout of the pipes. Hot water from the water jacket 6 of the boiler via direct pipe 13 enters the heating system (not shown in the drawing), and cooled through the return pipe 14 into the boiler. The air supply to the combustion chamber 2 is regulated by increasing or decreasing the gap between the front wall 10 of the ash box 9 and the blower 5. The maximum value of this gap should be no more than the difference between the lengths of the ash box 9 and the base of the combustion chamber 2. Otherwise, the ash will be sprinkled along an inclined the back wall 7 of the combustion chamber 2, will not fall into the ash box 9.

To increase the heating surface and improve the natural circulation of water, j-shaped tubes 15 connected to the water jacket 6 can be welded vertically into the side walls of the combustion chamber 2 (see FIG. 2). The heating surface of the boiler can be increased due to the formation of additional space for the water jacket 6 between the cover of the combustion chamber 2 and the cover of the housing 1 (see figure 2).

The inventive utility model can significantly increase the heating surface of the water jacket and, thereby, increase the efficiency of the boiler.

Claims (3)

1. A hot water boiler comprising a housing in which a combustion chamber with a door, a grate and a blower is placed, with the formation of a water jacket between the housing and the combustion chamber and connected to direct and return pipelines, characterized in that the upper part of the combustion chamber is on the side the back wall, the pipes connected with the water jacket are horizontally located, the back wall is installed with an inclination inside the combustion chamber, the grate is made of pipes located along the base of the combustion chamber and also includes chennyh a water jacket, under the grate is situated an ash box having a length greater than the length of the base of the combustion chamber and the front wall overlying the ashpan. 2. The boiler according to claim 1, characterized in that the side walls of the combustion chamber have vertically mounted] -shaped pipes connected with a water jacket. 3. The hot water boiler according to claim 1, characterized in that the pipes of the grate are tilted to the front wall of the combustion chamber.