Novel steam boiler

Abstract

The utility model discloses a novel steam boiler which comprises a shell, a combustion chamber arranged in the shell, a steam generation chamber and a smoke exhaust chamber, a hearth is arranged in the combustion chamber, water is accumulated in the steam generation chamber, a plurality of air guide pipes are densely arranged in the steam generation chamber, each air guide pipe is bent in a reciprocating mode, one end of each air guide pipe is communicated with the upper end of the combustion chamber, and the other end of each air guide pipe is communicated with the smoke exhaust chamber. The shell is further provided with a steam leading-out opening corresponding to the steam generation chamber, a smoke collecting cavity is formed in the smoke exhaust chamber, a smoke exhaust opening communicated with the smoke collecting cavity is further formed in the top of the smoke exhaust chamber, and a draught fan is further arranged at the bottom end of the smoke exhaust opening. And a certain manufacturing cost can be reduced.

Description

Technical Field

[0001] The utility model relates to a novel steam boiler. Background Art

[0002] The steam boiler in the prior art is generally vertical, with the furnace arranged at the bottom of the boiler. The fuel in the furnace burns to heat the bottom of the boiler, causing the water in the boiler to boil and generate steam. This type of steam boiler has the following problems: the heat exchange area between the boiler and the furnace is small, and a large amount of heat generated when the fuel is burned is not fully exchanged and discharged from the flue, resulting in heat waste and low steam generation efficiency. The furnace of the vertical boiler located at the bottom needs to bear the weight of the upper boiler and water, which has high requirements on the strength of the furnace, resulting in high manufacturing costs. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies of the prior art, to provide a new type of steam boiler with high heat utilization efficiency and high steam generation efficiency, and to reduce a certain manufacturing cost.

[0004] The technical solution of the utility model is: a new type of steam boiler, comprising an outer shell, a combustion chamber, a steam generating chamber and a smoke exhaust chamber arranged in the outer shell, the combustion chamber is provided with a furnace, the steam generating chamber is accumulated with water, a plurality of air guide pipes are densely arranged in the steam generating chamber, each of the air guide pipes is bent back and forth, one end of each of the air guide pipes is connected with the upper end of the combustion chamber, and the other end of each of the air guide pipes is connected with the lower end of the smoke exhaust chamber, the outer shell is also provided with a steam outlet corresponding to the steam generating chamber, a smoke collecting chamber is provided in the smoke exhaust chamber, a smoke exhaust port connected to the smoke collecting chamber is also provided at the top of the smoke exhaust chamber, and a fan is also provided at the bottom of the smoke exhaust port.

[0005] Specifically, each of the air guide tubes is bent back and forth in a "bow" shape.

[0006] Furthermore, the combustion chamber and the steam generating chamber are separated by a partition, so as to facilitate rapid heat exchange between the fuel in the combustion chamber and the water in the steam generating chamber when the fuel in the combustion chamber burns, thereby further improving the steam generating efficiency.

[0007] Furthermore, a fence is provided in the middle of the combustion chamber, and fuel is piled above the fence to facilitate full combustion of the fuel.

[0008] Specifically, the fence is composed of a plurality of rods arranged at equal distances to facilitate the falling of fuel residues.

[0009] Furthermore, the shell is provided with a furnace door corresponding to the furnace, so as to facilitate regular cleaning of fuel residues.

[0010] Furthermore, a fuel inlet is provided on the top of the shell, and a cover plate is provided on the fuel inlet.

[0011] Furthermore, a water inlet is provided on one side of the steam generating chamber, and the water inlet is connected to a water source through a connecting pipe.

[0012] Furthermore, a solenoid valve is provided on the water inlet, and a liquid level gauge is provided in the steam generating chamber. The solenoid valve and the liquid level gauge are connected to a controller. When the water level in the steam generating chamber drops to a certain level, the solenoid valve opens to add water to the steam generating chamber.

[0013] Furthermore, a heat-insulating layer is provided on the inner side of the shell to reduce the heat in the boiler from being dissipated to the outside.

[0014] Furthermore, a smoke purification device is provided at the top of the smoke exhaust port to improve environmental protection.

[0015] The beneficial effects of the utility model are as follows: the utility model is horizontally designed, has low load-bearing requirements for the furnace, and can reduce manufacturing costs; the high-temperature flue gas in the combustion chamber enters the smoke collecting chamber through each air duct, and the high-temperature gas exchanges heat with the water in the steam generating chamber when passing through each air duct, so that the water quickly heats up and boils to generate steam, and the steam is discharged from the steam outlet for use by downstream equipment; at the same time, the heat generated by the combustion in the combustion chamber and the waste heat of the flue gas in the smoke collecting chamber also heat the two side walls of the steam generating chamber at the same time, so that the heat utilization efficiency is high, and the steam generation efficiency of the boiler is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the combustion chamber and the steam generating chamber in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the combustion chamber and the top of the steam generating chamber in the utility model.

[0019] In the figure: combustion chamber 1, steam generating chamber 2, smoke exhaust chamber 3, air duct 4, steam outlet 5, smoke exhaust outlet 6, partition 7, fence 8, cover plate 9. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0021] Combination Figure 1-3As shown, a new type of steam boiler comprises an outer shell, a combustion chamber 1, a steam generating chamber 2 and a smoke exhaust chamber 3 arranged in the outer shell, the combustion chamber 1 is provided with a furnace, the steam generating chamber 2 is stored with water, a plurality of air guide pipes 4 are densely arranged in the steam generating chamber 2, each of the air guide pipes 4 is bent back and forth, one end of each of the air guide pipes 4 is connected with the upper end of the combustion chamber 1, and the other end of each of the air guide pipes 4 is connected with the lower end of the smoke exhaust chamber 3, the outer shell is also provided with a steam outlet 5 corresponding to the steam generating chamber 2, a smoke collecting cavity is provided in the smoke exhaust chamber 3, a smoke exhaust port 6 connected to the smoke collecting cavity is also provided at the top of the smoke exhaust chamber 3, and a fan is also provided at the bottom of the smoke exhaust port 6.

[0022] The working principle and beneficial effects of the above structure are: the fuel burns in the combustion chamber 1, and the fan generates negative pressure, so that the high-temperature flue gas in the combustion chamber 1 passes through the air ducts 4 and then enters the smoke collecting chamber. When the high-temperature gas passes through the air ducts 4, it exchanges heat with the water in the steam generating chamber 2, so that the water quickly heats up and boils to generate steam, and the steam is discharged from the steam outlet 5 for use by downstream equipment; at the same time, the heat generated by the combustion in the combustion chamber 1 and the waste heat of the flue gas in the smoke collecting chamber also heat the two side walls of the steam generating chamber 2 to further improve the steam generation efficiency of the boiler; one end of the air duct 4 is connected to the upper end of the combustion chamber 1, and the other end is connected to the lower end of the smoke exhaust chamber 3, which is in line with the upward flow trend of the high-temperature gas and is conducive to the full combustion of the fuel in the combustion chamber 1.

[0023] Specifically, Figure 2 As shown, each of the air guide tubes 4 is reciprocatingly bent in a "bow" shape.

[0024] In another embodiment, in combination Figure 2 and Figure 3 As shown, the combustion chamber 1 and the steam generating chamber 2 are separated by a partition 7, so as to facilitate rapid heat exchange between the fuel in the combustion chamber 1 and the water in the steam generating chamber 2 when the fuel is burned, thereby further improving the steam generating efficiency.

[0025] In another embodiment, if Figure 3 As shown, a fence 8 is provided in the middle of the combustion chamber 1, and fuel is piled above the fence 8 to facilitate the complete combustion of the fuel.

[0026] In another embodiment, the fence 8 is composed of a plurality of rods arranged at equal distances to facilitate the falling of fuel residues.

[0027] In another embodiment, the shell also has a furnace door corresponding to the furnace to facilitate regular cleaning of fuel residues.

[0028] In another embodiment, if Figure 1 As shown, a fuel inlet is also provided on the top of the shell, and a cover plate 9 is provided on the fuel inlet.

[0029] In another embodiment, a water inlet is further provided on one side of the steam generating chamber 2, and the water inlet is connected to a water source through a connecting pipe.

[0030] In another embodiment, a solenoid valve is further provided on the water inlet, and a liquid level gauge is further provided in the steam generating chamber 2. The solenoid valve and the liquid level gauge are connected to a controller. When the water level in the steam generating chamber 2 drops to a certain level, the solenoid valve opens to add water into the steam generating chamber 2.

[0031] In another embodiment, a heat-insulating layer is further provided on the inner side of the shell to reduce the heat in the boiler from being dissipated to the outside.

[0032] In another embodiment, a smoke purification device is further provided on the top of the smoke exhaust port 6 to improve environmental protection.

Claims

1. A new type of steam boiler, characterized in that: The invention comprises an outer shell, a combustion chamber (1) arranged in the outer shell, a steam generating chamber (2) and a smoke exhaust chamber (3), wherein the combustion chamber (1) is provided with a furnace, the steam generating chamber (2) is provided with water, a plurality of air guide pipes (4) are densely arranged in the steam generating chamber (2), each of the air guide pipes (4) is bent back and forth, one end of each of the air guide pipes (4) is connected to the upper end of the combustion chamber (1), and the other end of each of the air guide pipes (4) is connected to the lower end of the smoke exhaust chamber (3), the outer shell is also provided with a steam outlet (5) corresponding to the steam generating chamber (2), the smoke exhaust chamber (3) is provided with a smoke collecting chamber, the top of the smoke exhaust chamber (3) is also provided with a smoke exhaust port (6) connected to the smoke collecting chamber, and the bottom end of the smoke exhaust port (6) is also provided with a fan.

2. A novel steam boiler as claimed in claim 1, characterized in that: Each of the air guide tubes (4) is bent back and forth in a "bow" shape.

3. A novel steam boiler as claimed in claim 2, characterized in that: The combustion chamber (1) and the steam generation chamber (2) are separated by a partition plate (7).

4. A novel steam boiler as claimed in claim 3, characterized in that: A fence (8) is arranged in the middle of the combustion chamber (1), and fuel is piled above the fence (8).

5. A novel steam boiler as claimed in claim 4, characterized in that: The fence (8) is composed of a plurality of rods arranged at equal distances.

6. A novel steam boiler as claimed in claim 5, characterized in that: The shell is also provided with a furnace door corresponding to the furnace.

7. A novel steam boiler as claimed in claim 6, characterized in that: The top of the shell is also provided with a fuel inlet, and a cover plate (9) is provided on the fuel inlet.

8. A novel steam boiler as claimed in claim 7, characterized in that: A water inlet is also provided on one side of the steam generating chamber (2), and the water inlet is connected to a water source via a connecting pipe.

9. A novel steam boiler as claimed in claim 8, characterized in that: The water inlet is also provided with a solenoid valve, and the steam generating chamber (2) is also provided with a liquid level meter, and the solenoid valve and the liquid level meter are connected to a controller.

10. A novel steam boiler as claimed in claim 9, characterized in that: A heat-insulating layer is also provided on the inner side of the shell.

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