RU134295U1 - HEATING FURNACE - Google Patents

Abstract

A heating furnace containing a metal casing made of hollow, filled with coolant, side, rear and front walls, inlet and outlet pipes for the coolant located on the corresponding sections of the outer surface of the metal casing, an ash pan mounted on the upper surface of the bottom of the metal casing, grate, mounted above the inside of the ash pan, a door mounted on the front surface of the metal casing, and a pipe for removing flue gases from the inside the cavity of the metal casing, connected by one of its ends to its inner cavity, and the bypass tubes, characterized in that the bypass tubes located on the left and right sides of the grate, above the corresponding sections of the inner cavity of the ash pan and installed their ends in the inner cavities of the protrusions, made on the corresponding sections of the inner surfaces of the front and rear walls of the metal housing.

Description

The proposed technical solution relates to the field of power engineering and can be used to create furnaces that ensure fuel economy during their operation and exclude the loss of thermal energy.

Similar technical solutions are known, see, for example, the description of the application for the invention of the Russian Federation No.2014444118 / 03, which contains the following set of essential features:

- a metal casing made of hollow, filled with coolant, side, rear and front walls;

- inlet and outlet nozzles for the coolant located on the corresponding sections of the outer surface of the metal casing;

- an ash pan mounted on the upper surface of the bottom of the metal casing;

- grate installed above the inner cavity of the ash pan;

- a closed-type heater placed above the firebox of a metal case;

- a door fixed on the corresponding section of the front surface of the metal housing;

- a chimney located on the upper surface of the metal casing and communicating with its entrance with the internal cavity of the metal casing, and with its outlet with the atmosphere.

The common features of the proposed technical solution and the described similar technical solution are all of the listed features of a similar technical solution, with the exception of the "closed type heater placed above the firebox of the metal case."

It is also known a similar technical solution, see the certificate of the Russian Federation for utility model No. 32576, which is selected as the closest analogue, prototype, and which contains the following set of essential features:

- a metal casing made of hollow, filled with coolant, side, rear and front walls;

- inlet and outlet nozzles for the coolant, located on the corresponding sections of the outer surface of the metal casing;

- an ash pan mounted on the upper surface of the bottom of the metal casing;

- grate installed above the inner cavity of the ash pan;

- bypass tubes located above the grate and installed at their ends in the internal cavities of the side walls of the metal casing;

- electric heaters installed in the ash section;

- a door mounted on the front surface of a metal case;

- a chimney located on the upper surface of the metal casing and communicating with its entrance with the internal cavity of the metal casing, and with its outlet with the atmosphere.

Common features of the proposed technical solution and prototype are:

- a metal casing made of hollow, filled with coolant, side, rear and front walls;

- inlet and outlet nozzles for the coolant located on the corresponding sections of the outer surface of the metal casing;

- an ash pan mounted on the upper surface of the bottom of the metal casing;

- grate, mounted above the inner cavity of the ash pan;

- bypass tubes;

- a door mounted on the front surface of a metal case;

- a pipe for removing flue gases from the inner cavity of the metal casing, connected by one of its ends to its inner cavity.

The technical result, which cannot be achieved by any of the similar technical solutions described, consists in additional heating of the coolant coming from the inner cavity of the rear wall of the metal housing to the inner cavity of the front wall of the metal housing, without additional fuel consumption and heat loss.

The reason for the impossible achievement of the indicated technical result is that the prevailing practice in creating heating furnaces is more efficient and less expensive, including additional heating of the coolant circulating from the inner cavity of the rear wall to the inner cavity of the front wall of the metal case without additional fuel consumption and losses thermal energy, did not pay due attention.

Given the characteristics and analysis of known similar technical solutions, we can conclude that the task of creating heating furnaces that provide more economical fuel consumption and eliminates the loss of thermal energy is relevant today.

The technical result is achieved in that a heating furnace containing a metal casing made of hollow, filled with coolant, side, rear and front walls, inlet and outlet pipes for the coolant, is located in the corresponding sections of the outer surface of the metal casing, an ash pan mounted on the upper surface of the metal bottom casing, grate mounted above the ash chamber, bypass tubes, door mounted on the front surface of the metal casing and pipe for the removal of flue gases from the inner cavity of the metal casing, connected to one of its ends to its inner cavity, while in the heating furnace, proposed as a utility model, the bypass pipes are located on the left and right sides of the grate, above the corresponding sections of the inner ash pan cavities and protrusions installed at their ends in the internal cavities of the protrusions made on the corresponding sections of the inner surfaces of the front and rear walls of the metal housing .

The location and installation of the bypass tubes allows the combustion of fuel on the surfaces of the grate and bypass tubes, sending the resulting ash through horizontal gaps to the ash pan, without its deposition on the corresponding sections of the outer surfaces of the inner sections of the metal casing, grate and bypass tubes, which significantly reduces fuel consumption for heating “clean” surfaces and eliminates the loss of thermal energy for heating the coolant circulating inside ennih metal body cavity walls.

In this case, the coolant additionally received through the bypass tubes, heated to a certain temperature, as a “feedback”, from the inner cavity of the back wall to the inner cavity of the front wall of the metal casing, is heated even more due to the thermal energy located in the combustion chamber above the surface of the grate and the surfaces of the bypass pipes, thereby reducing fuel consumption for heating the coolant and eliminating the loss of thermal energy. What is the achievement of the above technical result.

The proposed heating furnace is illustrated by the following description and drawing, which shows its design, and which contains:

- metal case - 1, made of hollow, filled with coolant (for example, water), side, back and front walls (the positions of the walls are not shown in the drawing);

- inlet - 2 and outlet - 3 nozzles located on the corresponding sections of the outer surface of the metal housing - 1 and designed to supply coolant to the internal cavities of the side, rear and front walls and to supply coolant from the internal cavities of the side, rear and front walls to the inlet, for example , a heating battery (not shown in the drawing);

- ash pan - 4 with a handle - 5, mounted on the upper surface of the bottom of the metal housing - 1;

- grate - 6, mounted above the inner cavity of the ash pan - 4;

- bypass tubes - 7; 8, located on the right and left sides of the grate - 6 above the corresponding sections of the ash pan - 4 and installed at their ends in the internal cavities of the protrusions - 9 and 10, made on the corresponding sections of the inner surfaces of the front and rear walls of the metal casing - 1;

- door - 11, mounted on the corresponding section of the front surface of the metal housing - 1, through the hinges - 12; 13;

- flooring - 14, located above the internal cavity of the metal body - 1;

- pipe - 15 for the removal of flue gases from the inner cavity of the metal housing - 1, connected by one of its ends to its inner cavity.

The proposed heating furnace operates as follows.

On the surface of the grate - 6, they kindle firewood and maintain fire to the required temperature. As the fuel burns, the ash falls through the slots of the grate - 6, through the gaps formed by the inner surface of the side walls of the metal casing - 1 and the corresponding sections of the outer surfaces of the bypass tubes - 7; 8, through the gaps formed by the outer surfaces of the overflow pipes - 7 and 8 through the gaps formed by the lateral longitudinal edges of the grate and the corresponding outer surfaces of the overflow pipes - 7 and 8.

In this case, the flue gases from the burned fuel enter the inlet of the nozzle - 15, for the removal of flue gases from the inner cavity of the metal casing - 1, and then into the surrounding space.

Hot air from the heated walls of the metal case - 1 rises up and heats the surrounding space.

At the same time, the coolant entering through the inlet pipe 2 into the internal cavities of the rear, side and front walls is heated and due to the additional replenishment with the heated coolant coming as “feedback” from the inner cavity of the back wall of the metal case - 1 into the inner cavity the front wall of the metal housing - 1 through the through tubes - 7; 8 provides additional heating of the coolant without fuel consumption for the same heating.

The heated coolant enters through the outlet pipe - 3, for example, to the heating battery, gives it its heat and returns again through the inlet pipe - 2 to the internal cavities of the side, back and front walls of the metal casing - 1 and the whole process of heating the coolant is repeated.

Thus, due to the location of the through pipes, horizontal gaps are created and the ash passes into the ash pan without its deposition on the corresponding sections of the outer surfaces of the grates, through pipes and the inner surfaces of the metal casing, which in turn reduces not only fuel consumption for heating “clean” surfaces and coolant, but also eliminates the loss of thermal energy. And due to the additional replenishment of the heated coolant, which comes in feedback to the inner cavity of the front wall of the metal casing, through the flow tubes, additional heating of the coolant is provided, which also reduces fuel consumption for heating the coolant and eliminates the loss of thermal energy.

Therefore, the proposed heating furnace will take its rightful place among the well-known objects of a similar purpose.

Claims (1)

A heating furnace containing a metal casing made of hollow, filled with coolant, side, rear and front walls, inlet and outlet pipes for the coolant located on the corresponding sections of the outer surface of the metal casing, an ash pan mounted on the upper surface of the bottom of the metal casing, grate, mounted above the inside of the ash pan, a door mounted on the front surface of the metal casing, and a pipe for removing flue gases from the inside the cavity of the metal casing, connected by one of its ends to its inner cavity, and the bypass tubes, characterized in that the bypass tubes located on the left and right sides of the grate, above the corresponding sections of the inner cavity of the ash pan and installed their ends in the inner cavities of the protrusions, made on the corresponding sections of the inner surfaces of the front and rear walls of the metal casing.

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