Furnace box for waste heat steam boiler

Abstract

The utility model provides a furnace box for a waste heat steam boiler, and belongs to the technical field of waste heat steam boilers. Comprising a waste heat recovery furnace body and a heating furnace body installed above the waste heat recovery furnace body, H-shaped supporting steel columns are fixed to the periphery of the waste heat recovery furnace body, two symmetrical first [-shaped supporting steel columns are fixed to the bottom of the waste heat recovery furnace body, a connecting-in flue is fixed to one side of the waste heat recovery furnace body, and a gas outlet flue is fixed to the other side of the waste heat recovery furnace body. A first concentric-square-shaped connecting piece is fixed to a smoke inlet of the access flue, a concentric-square-shaped clamping groove is formed in the surface of the first concentric-square-shaped connecting piece, and through cooperation of the four H-shaped supporting steel columns and the two first U-shaped supporting steel columns, the structural strength of the waste heat recovery furnace body can be enhanced, deformation caused by stress of the heated waste heat recovery furnace body is reduced, and the waste heat recovery furnace body can be heated conveniently. And meanwhile, the boiler box can be conveniently and flexibly moved, the installation position of the waste heat steam boiler is adjusted, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat steam boilers, and in particular to a furnace box for a waste heat steam boiler. Background Art

[0002] The main uses of waste heat steam boilers are: 1. Recover waste heat: Waste heat steam boilers can recover waste heat generated in various industrial production processes, including waste gas, waste water and waste residue, etc., and convert these wastes into useful steam to achieve energy reuse. 2. Prepare steam: Waste heat steam boilers can use the recovered waste heat to prepare steam for industrial production. Compared with traditional boilers, waste heat steam boilers can prepare steam more efficiently while reducing energy waste. 3. Reduce pollution: Waste heat steam boilers can reduce waste emissions and reduce pollution to the environment. By converting waste into useful steam, resources can be reused while reducing negative impacts on the environment. 4. Energy saving and emission reduction: Waste heat steam boilers have the advantages of energy saving and emission reduction. They can use waste heat energy to prepare steam, thereby reducing the consumption of fresh energy, reducing energy costs, and reducing the emission of greenhouse gases such as carbon dioxide, which is beneficial to environmental protection.

[0003] For example, the Chinese patent with authorization announcement number CN210624489U discloses an energy-saving and environmentally friendly waste heat recovery steam boiler, including a base, an evaporating tube, an exhaust pipe and a separation tank, the base is connected to the tank body through a support frame, and a coupling groove is provided at the lower end of the tank body, a heating plate is integrally connected to the bottom of the evaporating tube, and a combustion groove is provided at the lower end of the heating plate, the exhaust pipe is integrally connected to the side of the tank body, and a ventilation groove is provided on the top of the tank body, a drain outlet is integrally connected to the front end of the separation tank, and the drain outlet is connected to the lower end of the coupling tank through the separation tank, and a screen is provided in the middle of the separation tank.

[0004] The above-mentioned steam boiler has the advantage that liquid water can be heated evenly in the evaporation tube; however, the furnace box of the above-mentioned steam boiler and the furnace boxes of commonly used steam boilers on the market still have some disadvantages, such as: first, the furnace box does not have a reinforced structure, and the furnace box is in a high temperature state for a long time. At the same time, under the influence of the weight of the heated water, the metal material of the boiler is prone to fatigue cracks, softening, and deformation, which affects the sealing and greatly reduces the service life of the furnace box; second, it does not have a flexible movement function. Since the bottom of the waste heat steam boiler is directly placed on the ground, during the transportation and installation process, most of the lifting machinery is used for transportation, which is not suitable for sites with a small space range, resulting in the inability to install the furnace box of the steam boiler, affecting its use. Utility Model Content

[0005] To make up for the above deficiencies, the present utility model provides a furnace box for a waste heat steam boiler, aiming to improve the problem that the furnace box does not have a strengthening structure. The furnace box is in a high-temperature state for a long time. At the same time, under the influence of the weight of the heated water, the boiler metal material is prone to fatigue cracks, softening, deformation and other phenomena, greatly reducing the service life of the furnace box; it does not have a flexible moving function. Since the bottom of the waste heat steam boiler is directly placed on the ground for use, during the transportation and installation process, a hoisting machine is mostly used for handling, which is not suitable for a site with a small space range, resulting in the inability to install the furnace box of the steam boiler and affecting the use.

[0006] An embodiment of the present utility model provides a furnace box for a waste heat steam boiler, including a waste heat recovery furnace body and a heating furnace body installed above the waste heat recovery furnace body. H-shaped support steel columns are fixed around the waste heat recovery furnace body, and two symmetrical first C-shaped support steel columns are fixed at the bottom of the waste heat recovery furnace body. An access flue is fixed on one side of the waste heat recovery furnace body. A first loop-shaped connecting piece is fixed at the smoke inlet of the access flue. A loop-shaped slot is opened on the surface of the first loop-shaped connecting piece. A sealing piece is arranged on the side surface of the first loop-shaped connecting piece. A loop-shaped insertion part is arranged on the surface of the sealing piece, and the loop-shaped insertion part is inserted into the loop-shaped slot.

[0007] L-shaped support plates are fixed on the bottom side surfaces of the H-shaped support steel columns. Threaded rods are threadedly connected to the L-shaped support plates. The lower ends of the threaded rods are rotatably connected to wheel seats through bearings, and moving wheels are rotatably connected to the wheel seats through bearings.

[0008] In the above implementation process, the cooperation of four H-shaped support steel columns and two first C-shaped support steel columns can strengthen the structural strength of the waste heat recovery furnace body, reduce the deformation caused by the force on the heated waste heat recovery furnace body, and extend the service life. Through the loop-shaped slot opened on the surface of the first loop-shaped connecting piece on the access flue, the loop-shaped insertion part of the sealing piece can be inserted, improving the firmness of the installation of the sealing piece and reducing the leakage of flue gas. The L-shaped support plates arranged at the bottom of the H-shaped support steel columns can be threadedly connected to the threaded rods. When the threaded rods rotate, the moving wheels installed on the wheel seats can move towards each other and abut against the ground, thereby raising the H-shaped support steel columns and facilitating the flexible movement of the furnace box to adjust the installation position of the waste heat steam boiler, which is time-saving, labor-saving, convenient and fast.

[0009] In a specific implementation scheme, two second C-shaped support steel columns are fixed on both sides of the waste heat recovery furnace body, and the two sides of the second C-shaped support steel columns are respectively fixedly connected to the H-shaped support steel columns.

[0010] In the above implementation process, the two second C-shaped support steel columns further improve the firmness of the installation on both sides of the waste heat recovery furnace body and reduce the deformation caused.

[0011] In a specific implementation manner, a heating water tank is provided in the waste heat recovery furnace body, and the heating water tank is connected to the heating furnace body through a provided water pipe.

[0012] In the above implementation process, the flue gas circulating in the waste heat recovery furnace is conveniently utilized for heating treatment by heating the water tank, thereby reducing heat loss.

[0013] In a specific implementation manner, a plurality of heat-conducting rods are arranged in the waste heat recovery furnace body, and the heat-conducting rods are connected to the heating furnace body.

[0014] In the above implementation process, the heat in the flue gas can be introduced into the heating furnace body through the heat-conducting rod to heat the water inside to form steam.

[0015] In a specific implementation manner, a smoke outlet is fixed on the other side of the waste heat recovery furnace body, a second circular connecting piece is fixed on the smoke outlet, and the second circular connecting piece has the same structure as the first circular connecting piece.

[0016] In the above implementation process, the smoke is conveniently discharged from the waste heat recovery furnace body through the smoke outlet duct, and can be connected to the smoke pipe through the second circular connecting piece.

[0017] In a specific implementation manner, the first circular connecting sheet and the sealing sheet are both provided with a plurality of equally spaced mounting holes.

[0018] In the above implementation process, the first circular connecting piece and the sealing piece are conveniently fixedly connected to the smoke pipe by screws through the mounting holes.

[0019] In a specific implementation manner, a circular block is fixed to the upper end of the threaded rod, and four equally spaced insertion holes are provided on the circumferential surface of the circular block.

[0020] In the above implementation process, through the insertion hole opened on the circular block, it is convenient to use a crowbar to be inserted on the circular block and rotate horizontally to adjust the rotation angle of the threaded rod.

[0021] In a specific implementation manner, a guide rod is inserted into the L-shaped support plate, and the lower end of the guide rod is threadedly connected to the wheel seat.

[0022] In the above implementation process, the guide rod is slidably connected to the L-shaped support plate, which can limit the vertical upward and downward movement of the wheel seat and improve the smoothness of the adjustment.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] In the furnace box of this waste heat steam boiler, the cooperation of four H-shaped support steel columns and two first C-shaped support steel columns can strengthen the structural strength of the waste heat recovery furnace body, reduce the deformation caused by the force on the heated waste heat recovery furnace body, extend the service life, and through the loop-shaped card slot opened on the surface of the first loop-shaped connecting piece connected to the flue, the loop-shaped insertion part of the sealing piece can be inserted, improving the firmness of the installation of the sealing piece, reducing the leakage of flue gas. The L-shaped support plate arranged at the bottom of the H-shaped support steel column can be threadedly connected with the threaded rod. When the threaded rod rotates, it can drive the moving wheels installed on the wheel seat to move towards each other and abut against the ground, thereby raising the H-shaped support steel column, facilitating the flexible movement of the furnace box, adjusting the installation position of the waste heat steam boiler, saving time and effort, and being convenient and fast. Brief Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0026] Figure 1 is one of the structural schematic diagrams provided by the embodiments of the present invention;

[0027] Figure 2 is the second structural schematic diagram provided by the embodiments of the present invention;

[0028] Figure 3 is the third structural schematic diagram provided by the embodiments of the present invention;

[0029] Figure 4 is Figure 2 the partial enlarged view at A in

[0030] In the figure: 1. Waste heat recovery furnace body; 2. H-shaped support steel column; 3. First C-shaped support steel column; 4. Access flue; 5. First loop-shaped connecting piece; 6. Loop-shaped card slot; 7. Sealing piece; 8. Loop-shaped insertion part; 9. Heating furnace body; 10. L-shaped support plate; 11. Threaded rod; 12. Wheel seat; 13. Moving wheel; 14. Second C-shaped support steel column; 15. Heating water tank; 16. Heat conduction rod; 17. Outlet flue; 18. Second loop-shaped connecting piece; 19. Installation hole; 20. Circular block; 21. Insertion hole; 22. Guide rod. Detailed Embodiment

[0031] Next, the technical solutions in the embodiments of the present invention will be described in conjunction with the drawings in the embodiments of the present invention.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0033] Please refer to Figure 1-4 , the present utility model provides a furnace box for a waste heat steam boiler, including a waste heat recovery furnace body 1 and a heating furnace body 9 installed above the waste heat recovery furnace body 1. H-shaped support steel columns 2 are fixed around the waste heat recovery furnace body 1, and two symmetric first C-shaped support steel columns 3 are fixed to the bottom of the waste heat recovery furnace body 1. An access flue 4 is fixed to one side of the waste heat recovery furnace body 1. A first loop-shaped connecting piece 5 is fixed to the smoke inlet of the access flue 4. A loop-shaped card slot 6 is formed on the surface of the first loop-shaped connecting piece 5. A sealing piece 7 is arranged on the side surface of the first loop-shaped connecting piece 5. A loop-shaped insertion portion 8 is arranged on the surface of the sealing piece 7. The loop-shaped insertion portion 8 is inserted into the loop-shaped card slot 6. Through the cooperation of the four H-shaped support steel columns 2 and the two first C-shaped support steel columns 3, the structural strength of the waste heat recovery furnace body 1 can be enhanced, the deformation caused by the force on the heated waste heat recovery furnace body 1 can be reduced, and the service life can be extended. Through the loop-shaped card slot 6 formed on the surface of the first loop-shaped connecting piece 5 on the access flue 4, the loop-shaped insertion portion 8 of the sealing piece 7 can be inserted, improving the firmness of the installation of the sealing piece 7 and reducing the leakage of flue gas;

[0034] L-shaped support plates 10 are fixed to the bottom side surfaces of the H-shaped support steel columns 2. Threaded rods 11 are threadedly connected to the L-shaped support plates 10. The lower ends of the threaded rods 11 are rotatably connected to wheel seats 12 through bearings. Movable wheels 13 are rotatably connected to the wheel seats 12 through bearings. The L-shaped support plates 10 arranged at the bottom of the H-shaped support steel columns 2 can be threadedly connected to the threaded rods 11. When the threaded rods 11 rotate, the movable wheels 13 installed on the wheel seats 12 can move towards each other and abut against the ground, thereby raising the H-shaped support steel columns 2, facilitating the flexible movement of the furnace box, adjusting the installation position of the waste heat steam boiler, saving time and effort, and being convenient and fast.

[0035] In the solution of the present utility model, two second C-shaped support steel columns 14 are fixed to both sides of the waste heat recovery furnace body 1. The two sides of the second C-shaped support steel columns 14 are respectively fixedly connected to the H-shaped support steel columns 2. The two second C-shaped support steel columns 14 further improve the firmness of the installation on both sides of the waste heat recovery furnace body 1 and reduce the deformation caused.

[0036] In the specific setting, a heating water tank 15 is provided in the waste heat recovery furnace body 1, and the heating water tank 15 is connected to the heating furnace body 9 through a provided water pipe. The heating water tank 15 facilitates the use of the flue gas circulating in the waste heat recovery furnace body 1 for heating treatment, thereby reducing heat loss.

[0037] In a specific implementation scheme, a plurality of heat-conducting rods 16 are arranged in the waste heat recovery furnace body 1, and the heat-conducting rods 16 are connected to the heating furnace body 9. The heat in the flue gas can be introduced into the heating furnace body 9 through the heat-conducting rods 16 to heat the water inside to form steam.

[0038] In the scheme of the present utility model, a smoke outlet 17 is fixed on the other side of the waste heat recovery furnace body 1, and a second circular connecting piece 18 is fixed on the smoke outlet 17. The second circular connecting piece 18 has the same structure as the first circular connecting piece 5. In the scheme of the present utility model, in this embodiment, the smoke outlet 17 is used to facilitate the discharge of smoke from the waste heat recovery furnace body 1, and the second circular connecting piece 18 can be connected to the smoke pipe.

[0039] In a specific implementation, a plurality of equally spaced mounting holes 19 are provided on the first circular connecting piece 5 and the sealing piece 7, and the mounting holes 19 facilitate the use of screws to fix the first circular connecting piece 5 and the sealing piece 7 to the smoke pipe.

[0040] In a specific implementation scheme, a circular block 20 is fixed to the upper end of the threaded rod 11, and four equidistantly distributed insertion holes 21 are provided on the circumferential surface of the circular block 20. Through the insertion holes 21 provided on the circular block 20, it is convenient to use a crowbar to be inserted on the circular block 20 and rotate horizontally to adjust the rotation angle of the threaded rod 11.

[0041] In this embodiment, a guide rod 22 is inserted on the L-shaped support plate 10, and the lower end of the guide rod 22 is threadedly connected to the wheel seat 12. The guide rod 22 is slidably connected to the L-shaped support plate 10, which can limit the vertical upward and downward movement of the wheel seat 12 and improve the smoothness of the adjustment.

[0042] Working principle of the furnace casing for the waste heat steam boiler: During use, the cooperation of four H-shaped support steel columns 2 and two first C-shaped support steel columns 3 can enhance the structural strength of the waste heat recovery furnace body 1, reduce the deformation caused by the force on the heated waste heat recovery furnace body 1, and extend the service life. Through the loop-shaped card slots 6 opened on the surface of the first loop-shaped connecting piece 5 connected to the flue 4, the loop-shaped insertion part 8 of the sealing piece 7 can be inserted, improving the firmness of the installation of the sealing piece 7 and reducing the leakage of flue gas. The L-shaped support plate 10 provided at the bottom of the H-shaped support steel column 2 can be threadedly connected to the threaded rod 11. When the threaded rod 11 rotates, the moving wheels 13 installed on the wheel seat 12 can move towards each other and abut against the ground, thereby raising the H-shaped support steel column 2 and facilitating the flexible movement of the furnace casing to adjust the installation position of the waste heat steam boiler, saving time and effort and being convenient and fast.

[0043] It should be noted that the specific model specifications of the waste heat recovery furnace body and the heating furnace body need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0044] The above are only the embodiments of the present invention and are not used to limit the protection scope of the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0045] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present invention, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A furnace box for a waste heat steam boiler, characterized in that: It includes a waste heat recovery furnace body (1) and a heating furnace body (9) installed above the waste heat recovery furnace body (1). H-shaped support steel columns (2) are fixed around the waste heat recovery furnace body (1). Two symmetrical first C-shaped support steel columns (3) are fixed at the bottom of the waste heat recovery furnace body (1). An access flue (4) is fixed on one side of the waste heat recovery furnace body (1). A first loop-shaped connecting piece (5) is fixed at the smoke inlet of the access flue (4). A loop-shaped card slot (6) is formed on the surface of the first loop-shaped connecting piece (5). A sealing piece (7) is arranged on the side surface of the first loop-shaped connecting piece (5). A loop-shaped insertion part (8) is arranged on the surface of the sealing piece (7). The loop-shaped insertion part (8) is inserted into the loop-shaped card slot (6). L-shaped support plates (10) are fixed on the bottom side surfaces of the H-shaped support steel columns (2). Threaded rods (11) are threadedly connected to the L-shaped support plates (10). The lower ends of the threaded rods (11) are rotatably connected to wheel seats (12) through bearings. Movable wheels (13) are rotatably connected to the wheel seats (12) through bearings.

2. A furnace box for a waste heat steam boiler according to claim 1, characterized in that: Two second C-shaped support steel columns (14) are fixed on both sides of the waste heat recovery furnace body (1). The two sides of the second C-shaped support steel columns (14) are respectively fixedly connected to the H-shaped support steel columns (2).

3. A furnace box for a waste heat steam boiler according to claim 1, characterized in that: A heating water tank (15) is arranged inside the waste heat recovery furnace body (1). The heating water tank (15) is connected to the heating furnace body (9) through a water pipe provided.

4. A furnace box for a waste heat steam boiler according to claim 1, characterized in that: A number of heat conducting rods (16) are arranged inside the waste heat recovery furnace body (1). The heat conducting rods (16) are connected to the heating furnace body (9).

5. The furnace box for a waste heat steam boiler according to claim 1, characterized in that: An outlet flue (17) is fixed on the other side of the waste heat recovery furnace body (1). A second loop-shaped connecting piece (18) is fixed on the outlet flue (17). The second loop-shaped connecting piece (18) has the same structure as the first loop-shaped connecting piece (5).

6. The furnace box for a waste heat steam boiler according to claim 1, characterized in that: A plurality of equally spaced installation holes (19) are formed on both the first loop-shaped connecting piece (5) and the sealing piece (7).

7. The furnace box for a waste heat steam boiler according to claim 1, characterized in that: A circular block (20) is fixed at the upper end of the threaded rod (11). Four equally spaced insertion holes (21) are formed on the circumferential surface of the circular block (20).

8. The furnace box for a waste heat steam boiler according to claim 1, characterized in that: A guide rod (22) is inserted into the L-shaped support plate (10). The lower end of the guide rod (22) is threadedly connected to the wheel seat (12).

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