Multi-stage combustion efficient energy-saving environment-friendly standard heating stove

Abstract

The utility model relates to a high-efficiency energy-saving environment-friendly standard multi-stage combustion heating furnace, which relates to the technical field of coal-fired heating furnaces, comprises a furnace body, a solid combustion chamber, a U-shaped diversion trench, a smoke combustion chamber and a water storage sleeve, and is characterized in that the solid combustion chamber is arranged in the furnace body, and the water storage sleeve is arranged around the solid combustion chamber; a plurality of U-shaped flow guide grooves, a plurality of compression areas, a plurality of smoke combustion chambers and a waste heat utilization bag are upwards arranged on the inner wall of the water storage sleeve, the waste heat utilization bag, the smoke combustion chambers and the solid combustion chamber are surrounded by the water storage sleeve, and the water storage sleeve is communicated with inner cavities of the U-shaped flow guide grooves, the heat supply pipe, the pressure relief bag and the water return pipe. The solid combustion chamber is upwards communicated with a plurality of compression areas, a plurality of smoke combustion chambers, a waste heat utilization bag and a waste gas pipe, a fuel adding opening is formed in the front face of the solid combustion chamber, a floating ash box is arranged below the solid combustion chamber, and an air inlet adjusting opening is formed in the upper end of a panel of the floating ash box and communicated with the panel of the floating ash box. Harmful substances such as smoke dust, carbon dioxide and the like are guided, gathered and pressurized through the U-shaped flow guide groove, quickly enter a compression area, are continuously compressed and accelerated instantly to increase the temperature to an extreme point, then enter a smoke combustion chamber, are instantly diffused and expanded under the action of sealing, buffering and high temperature, are reduced in concentration, and are combusted by air under the condition of combustion supporting. A large amount of smoke dust, carbon dioxide and other harmful substances are really completely burnt out in a mode that a plurality of smoke combustion chambers are used for sufficient repeated combustion, and the U-shaped flow guide groove, the smoke combustion chambers and the water storage sleeve are large in heat absorption area, not prone to scaling on the water contact face, high in heat conduction performance and high in water convection speed in the heating process. The method is a key point for efficiently saving energy, really improving the heat value utilization rate of the fire coal and reaching the smokeless dust-free environment-friendly standard.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace. Background Art

[0002] At present, some heating furnaces used in northern my country in winter are based on the principle that a solid combustion chamber is surrounded by a water jacket, multiple water storage pipes are arranged at a horizontal interval on the upper end, and each layer is staggered with the adjacent layers and communicated with the water storage jacket, and the smoke exhaust pipe outlet is directly located above the horizontal pipe. The existing technology has the following problems.

[0003] First, during the combustion of coal in the solid combustion chamber, the horizontal angle, length and diameter of the horizontal tube will affect the heating process of the solid combustion chamber, which will cause the water in the water storage horizontal tube to be atomized due to poor natural convection. This will cause the inner wall of the horizontal tube to quickly condense scale, and the density will increase sharply, which will hinder the thermal conductivity of the water storage tube. The large amount of heat energy released during the combustion of coal in the solid combustion chamber cannot be effectively utilized, and is quickly pumped directly from the gap between the heating horizontal tubes through the exhaust pipe to the space, causing energy loss. Second, during the combustion of coal in the solid combustion chamber, a large amount of heat, smoke, carbon dioxide and other harmful substances are released, which are directly pumped from the gap between the heating horizontal tubes and through the exhaust pipe to the space, causing environmental pollution. Summary of the invention

[0004] The utility model describes a multi-stage combustion, high-efficiency, energy-saving and environmentally friendly standard heating furnace, which aims to solve the technical deficiencies of the above-mentioned heating furnaces, and provides an innovative structure, economical and environmentally friendly standard winter heating furnace in accordance with the needs of realizing the laws of modern social economy and technological development, combined with special, high-end and scientific concepts.

[0005] To achieve the above objectives, the following technical solutions are adopted to solve the technical problems:

[0006] A multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace, including a furnace body, the top of which is provided with a longitudinal exhaust pipe, a heating pipe, and a transverse water return pipe at the side end of the furnace body. A water storage jacket is provided in the furnace body, a solid combustion chamber is provided in the water storage jacket, a fuel addition port is provided on the front of the solid combustion chamber, a furnace bottom floating ash box is provided at the lower end of the solid combustion chamber, and an air inlet adjustment port is provided on the floating ash box panel. A plurality of U-shaped guide grooves are respectively provided upward on the inner wall of the water storage jacket at the upper end of the solid combustion chamber, and a compression zone is provided on the closed end of the U-shaped guide groove near the inner wall of the water storage jacket. A plurality of U-shaped guide grooves are respectively provided upward on the inner wall of the water storage jacket, and a plurality of flue gas combustion chambers are provided between each two opposing U-shaped guide grooves. A waste heat utilization bag is provided at the upper end of the flue gas combustion chamber, and an exhaust pipe is provided at the upper end of the waste heat utilization bag. The solid combustion chamber, each flue gas combustion chamber and the waste heat utilization package are all surrounded by a water storage jacket and include a plurality of U-shaped guide grooves connected with a heating pipe at an upper end and a water return pipe at a lower end of the water storage jacket.

[0007] A further improvement of the technical solution of the utility model is that: the U-shaped guide grooves respectively set multiple U-shaped guide grooves with longitudinal inclination angles on the upper end of the solid combustion chamber and the inner wall opposite to the water storage jacket, and the three ends of each U-shaped guide groove are connected to the water storage jacket.

[0008] A further improvement of the technical solution of the utility model is that: the compression zone, the above-mentioned U-shaped guide grooves are respectively arranged on the inner wall of the water storage jacket, and at the same time, the closed ends of each U-shaped guide groove are arranged in a compression zone near the inner wall of the water storage jacket, and each compression zone is connected to the solid combustion chamber and each flue gas combustion chamber.

[0009] A further improvement of the technical solution of the utility model is that: the smoke combustion chamber, the above-mentioned U-shaped guide grooves are respectively arranged on the inner wall of the water storage jacket, and a smoke combustion chamber is arranged between each two U-shaped guide grooves, and the smoke combustion chamber is connected to the waste heat utilization bag.

[0010] A further improvement of the technical solution of the utility model is that: the waste heat utilization bag is provided with a waste heat utilization bag upward from the end of the smoke combustion chamber and is connected to the exhaust pipe.

[0011] A further improvement of the technical solution of the utility model is that the water storage jacket is arranged around the solid combustion chamber, around each flue gas combustion chamber, and around the waste heat utilization package, including each U-guide groove connected with the heating pipe and the return water pipe.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model using the above innovative structural technical solutions are as follows: The utility model mainly lies in: First, the U-shaped guide groove is arranged at the upper end of the solid combustion chamber, each of which has two large-area heat-absorbing planes facing each other, and the longitudinal inclination angle is arranged on the inner wall of the water storage jacket. The heating process will accelerate the natural convection speed of water, will not produce atomization, and scale is not easy to condense on the surface touching the water. The thermal conductivity is strong, and the utilization rate of the calorific value of coal can be effectively improved. The longitudinal inclination angle of the plane of the U-shaped guide groove guides the large amount of air in the solid combustion chamber, the large amount of heat released during the coal combustion process, and harmful substances such as smoke, carbon dioxide, etc., to gather and accelerate them to the compression zone. Entering the compression zone, it is instantly pressurized and accelerated, so that the temperature rises to the extreme, and it is input into the flue gas combustion chamber. Secondly, the flue gas combustion chamber can pressurize and increase the speed through the compression port to raise the temperature to the extreme of a large amount of heat, smoke, carbon dioxide and other harmful substances, and make them diffuse and expand instantly and reduce their concentration under the closed, high temperature and buffering effect of the flue gas combustion chamber. Under the condition of air-assisted combustion, they are fully and repeatedly burned in multiple flue gas combustion chambers to achieve the effect of complete combustion. The flue gas combustion chamber has a large heat absorption area around it, the water convection speed is fast during the heating process, the thermal conductivity is strong, and the utilization rate of the calorific value of the coal is high. Thirdly, the water storage jacket is surrounded by the water storage jacket around the solid combustion chamber, the multiple flue gas combustion chambers, and the waste heat utilization bag, including multiple U-shaped guide grooves that are connected and have an effective heat absorption area of ​​2m 2 The huge heat absorption area is conducive to the effective utilization of the large amount of heat released by the solid combustion chamber and the improvement of the utilization rate of the calorific value of coal. The results of repeated experiments have confirmed that the utilization rate of the calorific value of coal is about 85%. This innovative structural heating furnace has achieved the above high-efficiency energy-saving, smoke-free, dust-free, and environmentally friendly standards, which meets the needs of the development of a modern society. This furnace adopts innovative structural metal plates, pressed, and welded. It has low manufacturing costs, small footprint, simple installation, easy operation, natural air intake, automatic water replenishment, and fast natural convection speed of heating and return water. It is most suitable for winter indoor heating in suburbs and beyond, enterprises, manufacturing, commerce, service industries, areas without central heating, energy shortages, poverty, high cold, and families. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the front three-dimensional structure of a high-efficiency, energy-saving and environmentally friendly standard coal-fired heating furnace

[0014] Figure 2 This is a schematic diagram of the structure of a high-efficiency, energy-saving and environmentally friendly standard coal-fired heating furnace from a top view

[0015] Figure 3 This is a structural diagram of a cross-sectional diagram of a high-efficiency, energy-saving and environmentally friendly standard coal-fired heating furnace

[0016] In the figure, 1. solid combustion chamber, 2. furnace body, 3. water storage jacket, 4. compression zone, 5. U-shaped guide groove, 6. flue gas combustion, 7. waste heat utilization package, 8. heating pipe, 9. pressure relief package, 10. discharge pipe, 11. return pipe, 12. water supply bucket, 13. water supply pipe, 14. radiator, 15. gate valve, 16. drain tap, 17. exhaust pipe, 18. fuel addition port, 19. floating ash box, 20. air inlet adjustment port. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the embodiments;

[0018] Embodiment 1

[0019] like Figure 1-3As shown, the utility model provides a multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace, including an external furnace body 2, a water storage jacket 3 is provided in the furnace body 2, a solid combustion chamber 1 is provided in the water storage jacket 3, a U-shaped guide groove 5 is provided on the inner wall of the water storage jacket at the upper end of the solid combustion chamber 1, a plurality of compression zones 4 are provided on the upper side end of the solid combustion chamber 1, a plurality of flue gas combustion chambers 6 are provided on the upper end of the compression zone 4, a waste heat utilization bag 7 is provided on the upper end of the flue gas combustion chamber 6, a fuel adding port 18 is provided on the front side of the furnace body 1, a floating ash box 19 and an air inlet regulating port 20 are provided at the lower end of the furnace body, a longitudinal exhaust pipe 17 is provided on the left side of the top of the furnace body, a longitudinal heating pipe 8 is provided on the right side of the top of the furnace body, and a transverse return water pipe 11 is provided at the lower end of the furnace body side. A solid combustion chamber 1 is arranged in the water storage jacket 3, and a fuel addition port 18 is arranged on the front of the solid combustion chamber 1 and is connected to the solid combustion chamber 1. A floating ash box 19 is arranged at the lower end of the solid combustion chamber 1, and is connected to an air inlet adjustment port 20 arranged on the floating ash box 19. A plurality of compression zones 4 are arranged upwardly of the solid combustion chamber 1, and a plurality of flue gas combustion chambers 6 are arranged at the upper end of each compression zone 4. The flue gas combustion chamber 6 is provided with a waste heat utilization bag 7 at the upper end and is connected to the upper end exhaust pipe 17. The solid combustion chamber 1 is connected to Multiple compression zones 4 are arranged at the upper end, which are respectively connected with multiple flue gas combustion chambers 6, waste heat utilization bag 7, and exhaust pipe. A solid combustion chamber 1 is arranged in the water storage jacket, and multiple flue gas combustion chambers 6 are arranged at the upper end of the solid combustion chamber 1. The waste heat utilization bag 7 arranged at the upper end is surrounded and connected by the water storage jacket 3. Multiple U-shaped guide grooves 5 are arranged on the inner wall of the water storage jacket 3, which are connected with three ends. The top of the water storage jacket, i.e., the top of the waste heat utilization bag 7, is connected with the heat supply pipe 8 arranged at the upper end and the return water pipe 11 arranged at the lower end. A tee is arranged at the upper end of the above-mentioned heat supply pipe 8, which is connected with the discharge pipe to the water supply bucket 12. A pressure relief bag 9 is longitudinally arranged on the above-mentioned heat supply pipe 8 through the tee. A discharge pipe 10 is arranged at the upper end of the pressure relief bag 9. The heat supply pipe 8 is connected with the above-mentioned tee to the water supply bucket 12. The above-mentioned heating main pipe 8 is horizontally connected to the upper end of the radiator 14 through a tee, the lower end of the radiator 14 is connected to the return pipe 11 and the gate valve 15, the return pipe 11 is connected to the longitudinal water supply pipe 13 and the water supply bucket 12 through a tee, the tee of the return pipe 11 is connected to the longitudinal drain tap 16, and the tee of the return pipe 11 is horizontally connected to the lower end of the water storage jacket 3.

[0020] Embodiment 1

[0021] The U-shaped guide grooves 5 are respectively arranged at a longitudinal inclination angle on the upper end of the solid combustion chamber 1 and the inner wall opposite to the water storage jacket 3, and the three ends of each U-shaped guide groove 5 are connected to the water storage jacket 3.

[0022] Embodiment 2

[0023] The compression zone is provided with U-shaped guide grooves on the inner walls opposite to the water storage jacket, and each U-shaped guide groove is closed at the end, and each compression zone is provided near the inner wall of the water storage jacket, and each compression zone is connected with the solid combustion chamber and each flue gas combustion chamber.

[0024] Embodiment 3

[0025] The smoke combustion chamber has U-shaped guide grooves arranged opposite to each other on the inner wall of the water storage jacket, and a smoke combustion chamber is arranged between each two U-shaped guide grooves, and the smoke combustion chamber is connected to the waste heat utilization bag.

[0026] Embodiment 4

[0027] The waste heat utilization bag 7 is arranged at the upper end of the smoke combustion chamber 6 and is connected to the exhaust pipe 17 .

[0028] Embodiment 5

[0029] The water storage jacket 3 is provided in the furnace body 2, and a solid combustion chamber 1 is provided in the water storage jacket 3. The solid combustion chamber 1 is surrounded by the water storage jacket 3, and the upper flue gas combustion chambers 6 and the upper waste heat utilization package 7 are all surrounded by the water storage jacket 3 and are connected to each other. The three ends of the U-guide grooves 5 provided on the upper end of the solid combustion chamber 1 are connected to the waste heat utilization package 7, the heating pipe 8, and the return water pipe 11.

Claims

1. A multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace, comprising a furnace body (2), a solid combustion chamber (1), a U-shaped guide groove (5), a compression zone (4), a flue gas combustion chamber (6), and a water storage jacket (3), characterized in that: The furnace body (2) is provided with a solid combustion chamber (1), and a water storage jacket (3) is provided around the solid combustion chamber (1); the inner wall of the water storage jacket (3) is provided with a plurality of U-shaped guide grooves (5), a compression zone (4), a flue gas combustion chamber (6), and a waste heat utilization bag (7); the waste heat utilization bag (7), the flue gas combustion chamber (6), and the solid combustion chamber (1) are all surrounded by the water storage jacket (3); the water storage jacket (3) is connected to the inner cavity of the U-shaped guide groove (5), the heat supply pipe (8), and the return water pipe (11); the solid combustion chamber (1) is connected to the compression zone (4), the flue gas combustion chamber (6), the waste heat utilization bag (7), and the exhaust pipe (17); The U-shaped guide groove (5) is arranged on the inner wall of the water storage jacket (3) upward from the solid combustion chamber (1), and the three ends are connected to the water storage jacket (3); The compression zone (4) is arranged on the inner wall of the water storage jacket (3), close to the closed end of the U-shaped guide groove (5); The smoke combustion chamber (6) is arranged between every two U-shaped guide grooves (5); The water storage jacket (3) is arranged around each flue gas combustion chamber (6) and the solid combustion chamber (1), and the water storage jacket (3) is in communication with the flue gas combustion chamber (6) and the solid combustion chamber (1), as well as the inner cavity of the U-shaped guide groove (5).

2. According to claim 1, a multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace is characterized by: A U-shaped guide groove (5), a compression zone (4), a multi-stage flue gas combustion chamber (6), a water storage jacket (3), and a waste heat utilization bag (7) are arranged at the upper end of the solid combustion chamber (1).

3. According to claim 2, a multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace is characterized by: The U-shaped guide groove (5) is arranged on the inner wall of the water storage jacket (3) upward from the solid combustion chamber (1); the U-shaped guide groove (5) is formed by pressing a metal plate, and three sides thereof are welded to the inner wall of the water storage jacket (3); two or more U-shaped guide grooves (5) are arranged on each coal-fired furnace.

4. According to claim 1, a multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace is characterized by: The compression zone (4) is arranged at the upper end of the solid combustion chamber (1), and each coal-fired furnace is provided with one or more compression zones (4).

5. According to claim 1, a multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace is characterized by: The smoke combustion chamber (6) is arranged at the upper end of the solid combustion chamber (1), or a smoke combustion chamber (6) is arranged between two opposing U-shaped guide grooves (5).

6. According to claim 1, a multi-stage combustion high-efficiency energy-saving and environmentally friendly standard heating furnace is characterized by: The water storage jacket (3) is arranged around each flue gas combustion chamber (6), the waste heat utilization bag (7), and the solid combustion chamber (1), and is connected to the inner cavity of the U-shaped guide groove (5), the heating pipe (8), the pressure relief bag (9), and the return water pipe (11).

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