Detachable energy-saving fire-tube cooking furnace

Abstract

The present invention discloses a detachable energy-saving fire tube steam boiler, which includes a barrel body. Symmetrically arranged at the center below the barrel body are a fire inlet and a flue gas outlet. A central energy-gathering chamber is arranged between the fire inlet and the flue gas outlet. The central energy-gathering chamber includes a bottom plate and a top cover. Second partition plates are embedded and welded inside the bottom plate and the top cover, and first partition plates welded between the bottom plate and the top cover are arranged inside the second partition plates. Fire holes are formed in the second partition plates. In the present invention, through the mutual cooperation of the top cover, the bottom plate, the first partition plate and the second partition plate, hot air forms a vortex, and heat energy is concentrated and gathered in the central energy-gathering chamber, so that the heat can be better utilized. At the same time, since a circulating cavity is formed inside, the hot cycle exchange time is prolonged, which fully promotes the utilization of heat energy. Cooperating with the gas flow in the left and right air ducts, heat is further radiated and exchanged, thereby achieving the effect of speed increase and energy saving.

Description

Technical Field

[0001] The present invention relates to the technical field of energy conservation and emission reduction, and particularly to a detachable and energy-saving fire tube steam boiler. Background Art

[0002] Gas steam boilers have the advantages of high efficiency, energy conservation, safety, convenience, etc., and are ideal kitchen equipment for canteens, restaurants, hotels and guesthouses of enterprises and institutions. They are suitable for steaming pasta, buns, steamed buns, and various dishes.

[0003] The existing steam boilers are designed with two fire tubes, with fast heat loss and no central energy-gathering chamber design, so they cannot exchange and absorb heat better; the fire tubes and the combustion chamber are fixed by welding. Once the fire tubes are damaged, they cannot be disassembled and replaced, and the maintenance is very inconvenient. Therefore, a detachable and replaceable fire tube needs to be designed. Summary of the Invention

[0004] The purpose of the present invention is to provide a detachable and energy-saving fire tube steam boiler to solve the problems of inconvenient replacement by welding and excessive heat dissipation of the existing fire tubes.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A detachable and energy-saving fire tube steam boiler includes a barrel body. Symmetrically arranged at the center of the lower part of the barrel body are a fire inlet and a flue gas outlet. A central energy-gathering chamber is arranged between the fire inlet and the flue gas outlet, and the central energy-gathering chamber is connected to the fire inlet through two fire tubes. The left and right sides of the central energy-gathering chamber are respectively connected to the flue gas outlet through a left air duct and a right air duct;

[0007] The central energy-gathering chamber includes a bottom plate and a top cover. A second spacer is embedded and welded inside the bottom plate and the top cover, and a first spacer welded between the bottom plate and the top cover is arranged inside the second spacer. Through-fire holes are formed in the second spacer, and an eddy current circulation chamber is formed among the bottom plate, the top cover, the first spacer and the second spacer.

[0008] As a further description of the above technical solution:

[0009] The central energy-gathering chamber is connected to the fire inlet through two air ducts, and both air ducts are welded to one vertical end face of the top cover.

[0010] As a further description of the above technical solution:

[0011] The through-fire holes on the second spacer are arranged in a rectangular array and are located at the middle position of the vertical end face far from the air duct side.

[0012] As a further description of the above technical solution:

[0013] Below the fire inlet, a combustion chamber and a gas burner are arranged from top to bottom. The combustion chamber and the fire inlet are fixedly connected by a flange, and the flange and the fire inlet are sealed by a heat-resistant silica gel pad.

[0014] As a further description of the above technical solution:

[0015] Below the flue gas outlet, a centrifugal fan is arranged. The input end of the centrifugal fan is fixedly connected by a flange, and the flange and the centrifugal fan are sealed by a heat-resistant silica gel pad. The output end of the centrifugal fan is connected to a smoke exhaust pipe, and the smoke exhaust pipe extends to the outside of the barrel body.

[0016] As a further description of the above technical solution:

[0017] Heat accumulation and energy storage materials can be added inside the central energy-gathering chamber.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0019] In the present invention, the installation of the fire tube structure is carried out by means of flange bolt connection, making the installation and maintenance of the fire tube more convenient and fast, thus effectively extending the service life of the product carried. Through the mutual cooperation of the top cover, bottom plate, first partition board and second partition board, hot air forms a vortex, and the heat energy is concentrated in the central energy-gathering chamber, which can make better use of the heat. At the same time, since a circulating cavity is formed inside, the heat circulation exchange time is prolonged, which fully promotes the utilization of heat energy. With the cooperation of the gas flow in the left and right air ducts, the heat is further radiated and exchanged, thereby achieving the effect of speed increase and energy conservation. Description of the Drawings

[0020] Figure 1 The front view structure diagram provided for the embodiment of the detachable energy-saving fire tube type cooking furnace in the present invention;

[0021] Figure 2 The top view structure diagram provided for the embodiment of the detachable energy-saving fire tube type cooking furnace in the present invention;

[0022] Figure 3 The exploded view of the central energy-gathering chamber provided for the embodiment of the detachable energy-saving fire tube type cooking furnace in the present invention;

[0023] Figure 4 The structure diagram of the spacer provided for the embodiment of the detachable energy-saving fire tube type cooking furnace in the present invention.

[0024] Legend Explanation:

[0025] 1. Barrel body; 2. Central energy-gathering chamber; 3. Fire tube; 4. Flange; 5. Combustion chamber; 6. Gas burner; 7. Centrifugal fan; 8. Fire inlet; 9. Flue gas outlet; 10. Right air duct; 11. Left air duct; 12. Eddy current circulation chamber; 13. Fire through hole; 14. Exhaust pipe; 15. First spacer; 16. Bottom plate; 17. Second spacer; 18. Top cover; 19. Heat-resistant silicone gasket. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] For Embodiment 1, please refer to Figures 1-4 , a detachable energy-saving fire tube type cooking furnace, including a barrel body 1, a fire inlet 8 and a flue gas outlet 9 are symmetrically arranged at the center of the lower part of the barrel body 1, a central energy-gathering chamber 2 is arranged between the fire inlet 8 and the flue gas outlet 9, heat-collecting and energy-storing materials can be added inside the central energy-gathering chamber 2, and the central energy-gathering chamber 2 is communicated with the fire inlet 8 through two fire tubes 3, and the two fire tubes 3 are symmetrically arranged about the midline of the central energy-gathering chamber 2. A combustion chamber 5 and a gas burner 6 are arranged from top to bottom below the fire inlet 8, and the combustion chamber 5 and the fire inlet 8 are fixedly connected through a flange 4, and the flange 4 and the fire inlet 8 are sealed through a heat-resistant silicone gasket 19. A centrifugal fan 7 is arranged below the air outlet 9, and the input end of the centrifugal fan 7 is fixedly connected through a flange 4, and the flange 4 and the centrifugal fan 7 are sealed through a heat-resistant silicone gasket 19. The output end of the centrifugal fan 7 is communicated with an exhaust pipe 14, and the exhaust pipe 14 extends to the outside of the barrel body 1. The left and right sides of the central energy-gathering chamber 2 are respectively communicated with the air outlet 9 through a left air duct 11 and a right air duct 10. The left and right air ducts enclose the central heat-collecting chamber 2 inside, and the left air duct 11 and the right air duct 10 are designed with multiple bends, effectively extending the pipeline length. When the heat of the waste heat gas flows in the left air duct 11 and the right air duct 10, it will further radiate from the pipe wall to the inside of the barrel, so as to achieve the effect of energy-saving and multi-effect.

[0028] The central energy-gathering chamber 2 includes a bottom plate 16 and a top cover 18. A second spacer plate 17 is embedded and welded inside the bottom plate 16 and the top cover 18. And a first spacer plate 15 welded between the bottom plate 16 and the top cover 18 is arranged inside the second spacer plate 17. A through-fire hole 13 is formed in the second spacer plate 17. An eddy current circulation chamber 12 is formed among the bottom plate 16, the top cover 18, the first spacer plate 15 and the second spacer plate 17. The central energy-gathering chamber 2 is communicated with the fire inlet 8 through two air ducts, and both of the two air ducts are welded to one vertical end face of the top cover 18. The through-fire holes 13 on the second spacer plate 17 are arranged in a rectangular array, and the through-fire holes 13 are located at the middle position of the vertical end face far from the air pipe side. There are multiple through-fire holes 13, and multiple through-fire holes 13 are arranged in a rectangular array.

[0029] Working principle: The heat generated by the gas burner row 6 and the combustion chamber 5 enters the central energy-gathering chamber 2 through two fire tubes 3. Due to the action of the first spacer plate 15 and the second spacer plate 17, the heat entering the central energy-gathering chamber forms an eddy current. Since the through-fire holes 13 with a rectangular structure are formed in the second spacer plate 17, the uncooled hot gas can be effectively intercepted and made to flow back and transfer heat to the outer wall of the heat-gathering chamber again, so as to be radiated to the inside of the barrel through the stainless steel shell of the heat-gathering chamber. Under the action of the centrifugal fan 7, the waste heat gas flows through the right air duct 10 and the left air duct 11 and converges to the flue gas outlet 9, and is transported to the outside of the barrel body 1 through the exhaust pipe 14.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes an equivalent substitution or change, and should be covered within the protection scope of the present invention.

Claims

1. A detachable energy-saving fire-tube cooking furnace, comprising a barrel (1), wherein a fire inlet (8) and a smoke outlet (9) are symmetrically arranged at the center of the lower portion of the barrel (1), characterized in that: A central energy-focusing chamber (2) is provided between the fire inlet (8) and the smoke outlet (9), and the central energy-focusing chamber (2) is connected to the fire inlet (8) through two fire tubes (3), and the left and right sides of the central energy-focusing chamber (2) are respectively connected to the smoke outlet (9) through a left air duct (11) and a right air duct (10); The central energy-gathering chamber (2) comprises a bottom plate (16) and a top cover (18); a second partition plate (17) is embedded and welded inside the bottom plate (16) and the top cover (18); a first partition plate (15) is provided on the inner side of the second partition plate (17) and is welded between the bottom plate (16) and the top cover (18); a fire hole (13) is provided on the second partition plate (17); and a vortex circulation chamber (12) is formed between the bottom plate (16), the top cover (18), the first partition plate (15) and the second partition plate (17); The central energy-gathering chamber (2) is connected to the fire inlet (8) through two air passages, and both air passages are welded to a vertical end face of one side of the top cover (18); The fire holes (13) on the second partition plate (17) are arranged in a rectangular array, and the fire holes (13) are located in the middle of the vertical end surface away from the air pipe; A combustion chamber (5) and a gas fire grate (6) are provided below the fire inlet (8) from top to bottom, and the combustion chamber (5) and the fire inlet (8) are fixedly connected via a flange (4), and the flange (4) and the fire inlet (8) are sealed via a heat-resistant silicone pad (19).

2. The detachable energy-saving fire tube cooking furnace according to claim 1 is characterized in that: A centrifugal fan (7) is provided below the smoke outlet (9), and the input end of the centrifugal fan (7) is fixedly connected via a flange (4), and the flange (4) and the centrifugal fan (7) are sealed via a temperature-resistant silicone pad (19), and the output end of the centrifugal fan (7) is connected to a smoke exhaust pipe (14), and the smoke exhaust pipe (14) extends to the outside of the barrel (1).

3. The detachable energy-saving fire tube cooking furnace according to claim 1, characterized in that: Heat-gathering and energy-storing materials are added inside the central energy-gathering chamber (2).

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