Catalytic combustion furnace for preventing exhaust gas leakage
By designing a slip structure, sealing door and cooling structure in a catalytic combustion furnace, the problems of low catalyst replacement efficiency and pulling deformation of the cold water pipe in the prior art are solved, and more efficient catalyst replacement and smooth operation of the catalytic bed are achieved.
Patent Information
- Application Number
- CN202420710278.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-08
AI Technical Summary
The existing catalytic combustion furnaces are less efficient when replacing the catalyst, and the cold water pipe is likely to cause the catalytic bed to move relative to the furnace body during the removal process, causing the cold water pipe to pull and deform, affecting the removal and re-insertion.
A catalytic combustion furnace is designed to prevent exhaust gas leakage. It adopts a combustion chamber and a catalytic bed in the furnace body. The catalytic bed and the inner wall of the furnace body are connected by a sliding structure. The outer wall of the furnace body is equipped with a material change gap and a sealing door. The sealing door is equipped with a guide structure and a cooling structure. The catalytic bed is moved into the sealing door by rotating the sealing door, and cooled it through the cooling structure, so that the catalyst can be replaced directly.
The efficiency of catalyst replacement is improved, the handling process of the catalytic bed is reduced, and the pulling deformation of the cold water pipe is avoided during the removal process, ensuring the smooth removal and re-insertion of the catalytic bed.
Smart Images
Figure CN222703291U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of combustion furnaces, and in particular to a catalytic combustion furnace capable of preventing exhaust gas leakage. Background Art
[0002] A catalytic combustion furnace is a device that uses a catalyst to accelerate the combustion reaction. It reduces the ignition temperature and promotes the combustion reaction, thereby improving the combustion efficiency, reducing exhaust gas emissions and energy consumption. It is often used in home heating, industrial production and other fields. In order to prevent the catalyst from deactivating and replace the catalyst in time, the existing catalytic combustion furnace has a window on the outer wall of the furnace body. The catalytic bed is taken out through the window to replace the catalyst in time, ensuring that the catalyst will not be deactivated, the fuel burns more thoroughly, and more exhaust gas is reacted in the combustion furnace, reducing the amount of exhaust gas mixed in the exhaust gas and reducing exhaust gas leakage.
[0003] The existing catalytic combustion furnace catalyst replacement process is: a cold water pipe is set on the catalyst bed, the catalyst bed is first cooled by the cold water pipe, and then the catalyst bed is extracted and transported to a replacement station to replace the catalyst therein.
[0004] Although this can solve the problem of replacing the catalyst in the combustion furnace, the following problems still exist: 1. The combustion furnace itself lacks a structure for taking out the catalyst bed and placing it back. After the catalyst bed is taken out, it is necessary to transport the catalyst bed to the replacement table, which affects the efficiency of catalyst replacement; 2. During the process of removing the catalyst bed, the cold water pipe is connected to the catalyst bed and the furnace body at the same time. When the catalyst bed moves relative to the furnace body, it is easy to cause the cold water pipe to be pulled and deformed, affecting the removal and reinsertion of the catalyst bed. Utility Model Content
[0005] The utility model provides a catalytic combustion furnace which can prevent exhaust gas leakage, solves the problem of low efficiency in replacing catalysts in a catalytic bed of a combustion furnace in the prior art, and improves the practicability of the equipment.
[0006] The technical solution of the utility model is as follows:
[0007] A catalytic combustion furnace for preventing exhaust gas leakage, comprising a furnace body,
[0008] A combustion chamber is provided in the furnace body, a catalytic bed is provided at the upper end of the combustion chamber, a sliding structure is provided between the catalytic bed and the inner wall of the furnace body for enabling the catalytic bed to be slidably connected relative to the furnace body, a material changing gap is provided on the outer wall of the furnace body close to the catalytic bed, a sealing door is rotatably connected to the bottom of the material changing gap, a guiding structure is provided on the sealing door for guiding the catalytic bed to enter the sealing door, a control structure is provided between the outer wall of the furnace body and the box door for controlling the sealing door to rotate 90° relative to the outer wall of the furnace body or to close the sealing door to seal the material changing gap, and a cooling structure is also provided at the upper end of the material changing gap for reducing the temperature of the catalytic bed.
[0009] Furthermore, the projection surface of the furnace body is a rectangular structure, a furnace cover is fixed on the top of the furnace body, the furnace cover is a quadrangular pyramid structure, and an air outlet pipe is fixed on the top of the furnace cover.
[0010] Furthermore, the combustion chamber is a rectangular structure, and the sliding structure includes a first sliding rail and a second sliding rail. The first sliding rail and the second sliding rail are parallel to each other and are respectively fixed on the sides of the combustion chamber. The first sliding rail and the second sliding rail are respectively provided with a first sliding groove and a second sliding groove. The cross-section of the first sliding groove and the second sliding groove is a "convex" structure, and the first sliding groove and the second sliding groove are arranged opposite to each other. Slide blocks slidably connected to the first sliding groove and the second sliding groove are respectively provided on both sides of the catalyst bed.
[0011] Furthermore, the material exchange notch and the box door are both rectangular structures, and the guiding structure includes a first limit plate and a second limit plate, the first limit plate and the second limit plate are parallel to each other and fixedly arranged on the side of the box door close to the combustion chamber, the first limit plate corresponds to the first sliding rail, the second limit plate corresponds to the second sliding rail, and a third limit plate is fixed to the first limit plate and the second limit plate away from the end of the first sliding rail, and rotating parts are provided on both sides of the bottom of the material exchange notch, and the rotating parts on both sides of the box door are evenly rotatably connected.
[0012] Furthermore, the control structure includes a first telescopic member and a second telescopic member, a support plate is provided on the outer wall of the furnace body, the support plate is located on the lower side of the rotating member, the first telescopic member and the second telescopic member are parallel to each other, and the fixed end of the first telescopic member and the fixed end of the second telescopic member are both rotatably connected to both sides of the support plate, and the telescopic end of the first telescopic member and the telescopic end of the second telescopic member are both rotatably connected to both sides of the box door.
[0013] Furthermore, the cooling structure includes a cooling fan, and a mounting plate is provided on the outer wall of the furnace body. The mounting plate is located on the upper side of the material replacement gap, and the cooling fan is fixedly connected to the lower end of the mounting plate by threads.
[0014] Furthermore, a placement groove is provided in the catalyst bed, a plurality of ventilation holes are provided at the bottom of the placement groove, the projection surface of the placement groove is a rectangular structure, and a movable handle is provided on the catalyst bed near the material exchange notch.
[0015] The working principle and beneficial effects of the utility model are:
[0016] The working process of replacing the catalyst according to the utility model is as follows: first, the first telescopic part and the second telescopic part are retracted simultaneously to drive the sealing door to rotate to 90° relative to the material replacement gap, and then the catalyst bed is moved by the moving handle to be moved out of the furnace body along the first limit plate and the second limit plate to the sealing door. At this time, the cooling fan is started to cool the catalyst bed, and the catalyst can be replaced after the cooling is completed.
[0017] The utility model provides a material changing gap on the furnace body, and a sealing door on the material changing gap, a guiding structure on the sealing door, and a cooling structure on the upper end of the material changing gap. The catalytic bed in the furnace body is moved onto the sealing door by rotating the sealing door, and is cooled by the cooling structure, so that the catalyst on the catalytic bed can be directly replaced, replacing the design of the prior art of moving the catalytic bed out to a replacement table for replacement, reducing the transportation process of the catalytic bed and improving the replacement efficiency of the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0019] Figure 1 It is a structural schematic diagram of the prior art of this embodiment;
[0020] Figure 2 The overall structure of this embodiment is shown in FIG. Figure 1 ;
[0021] Figure 3 The overall structure of this embodiment is shown in FIG. Figure 2 ;
[0022] Figure 4 Schematic diagram of the structure inside the furnace body in this embodiment;
[0023] Figure 5 Schematic diagram of the internal structure of the first sliding rail and the second sliding rail in this embodiment.
[0024] In the figure:
[0025] 1. Furnace body; 11. Furnace cover; 12. Refueling gap; 13. Combustion chamber; 2. Exhaust pipe; 3. Support plate; 4. Mounting plate; 41. Cooling fan; 5. Sealing door; 51. Rotating member; 52. First limit plate; 53. Second limit plate; 54. Third limit plate; 61. First telescopic member; 62. Second telescopic member; 7. Catalytic bed; 71. Placement slot; 72. Ventilation hole; 73. Moving handle; 74. Slider; 81. First sliding rail; 811. First sliding groove; 82. Second sliding rail; 821. Second sliding groove. DETAILED DESCRIPTION
[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] like Figure 2 to Figure 5 As shown, a catalytic combustion furnace for preventing exhaust gas leakage includes a furnace body 1. The combustion chamber 13 in this embodiment is arranged in the furnace body 1, and the catalyst bed 7 is arranged at the upper end of the combustion chamber 13. The sliding structure is arranged between the catalyst bed 7 and the inner wall of the furnace body 1, and is used to make the catalyst bed 7 slide and connect relative to the furnace body 1. The refueling gap 12 is arranged on the outer wall of the furnace body 1 close to the catalyst bed 7, and the sealing door 5 is rotatably connected to the bottom of the refueling gap 12. The guiding structure is arranged on the sealing door 5, and is used to guide the catalyst bed 7 to enter the sealing door 5. The control structure is arranged between the outer wall of the furnace body 1 and the box door, and is used to control the sealing door 5 to rotate and open 90° relative to the outer wall of the furnace body 1 or to make the sealing door 5 close and seal the refueling gap 12. The cooling structure is arranged at the upper end of the refueling gap 12, and is used to reduce the temperature of the catalyst bed 7.
[0028] The combustion chamber 13 in this embodiment is a rectangular parallelepiped structure, and the sliding structure includes a first sliding rail 81 and a second sliding rail 82. The first sliding rail 81 and the second sliding rail 82 are parallel to each other and are fixedly arranged on the sides of the combustion chamber 13 respectively. The first sliding groove 811 is arranged in the first sliding rail 81, and the second sliding groove 821 is arranged in the second sliding rail. The cross-sections of the first sliding groove 811 and the second sliding groove 821 are "convex" structures, and the first sliding groove 811 and the second sliding groove 821 are arranged opposite to each other. The sliders 74 are arranged on both sides of the catalyst bed 7, and they are slidably connected to the first sliding groove 811 and the second sliding groove 821 respectively. Such a design allows the two ends of the sealing door 5 to be embedded in the first sliding groove 811 and the second sliding groove 821 to slide synchronously, and the sealing door 5 is not easy to be displaced or detached during the sliding process.
[0029] The refueling notch 12 and the box door in this embodiment are both rectangular structures, and the guiding structure includes a first limit plate 52 and a second limit plate 53. The first limit plate 52 and the second limit plate 53 are parallel to each other and fixedly arranged on the side of the box door close to the combustion chamber 13. The first limit plate 52 corresponds to the first sliding rail 81, and the second limit plate 53 corresponds to the second sliding rail 82. The third limit plate 54 is fixedly arranged at the end of the first limit plate 52 and the second limit plate 53 away from the first sliding rail 81, which is used to prevent the catalyst bed 7 from sliding out and detaching from the box door. The rotating member 51 is arranged on both sides of the bottom of the refueling notch 12, and the rotating members 51 on both sides of the box door are evenly connected. The horizontal height of the box door in this embodiment after rotating 90° is flush with the refueling notch 12. This design ensures that when the catalyst bed 7 leaves the furnace body 1 and enters the box door, it will not be offset and can enter the box door more smoothly.
[0030] The control structure in the present embodiment includes a first telescopic member 61 and a second telescopic member 62, a support plate 3 is arranged on the outer wall of the furnace body 1, the support plate 3 is located at the lower side of the rotating member 51, the first telescopic member 61 and the second telescopic member 62 are parallel to each other, and the fixed end of the first telescopic member 61 and the fixed end of the second telescopic member 62 are both rotatably connected to the two sides of the support plate 3, and the telescopic end of the first telescopic member 61 and the telescopic end of the second telescopic member 62 are both rotatably connected to the two sides of the door. The first telescopic member 61 and the second telescopic member 62 in the present embodiment are preferably hydraulic cylinders or cylinders. Among them, the hydraulic cylinders or cylinders are all prior art, and the present embodiment will not be repeated. The first telescopic member 61 and the second telescopic member 62 in the present embodiment synchronously control the extension length to ensure that the door rotates smoothly without deviation.
[0031] The catalyst bed 7 in this embodiment is provided with a placement groove 71, and a plurality of ventilation holes 72 are arranged at the bottom of the placement groove 71, and the projection surface of the placement groove 71 is a rectangular structure. A moving handle 73 is arranged on the catalyst bed 7 near the refueling notch 12 to facilitate the movement of the catalyst bed 7. The design of the ventilation hole ensures that the combustion gas at the lower end can pass through the catalyst bed 7, increasing the contact area with the catalyst to achieve a faster combustion efficiency. In this embodiment, the furnace body 1 can also be provided with a ventilation device, a blower and other combustion furnace components, which are all existing technologies and are not described in detail in this embodiment.
[0032] The cooling structure in this embodiment includes a cooling fan 41, a mounting plate 4 is arranged on the outer wall of the furnace body 1, the mounting plate 4 is located on the upper side of the material replacement gap 12, and the cooling fan 41 is fixedly connected to the lower end of the mounting plate 4 by threads. The cooling fan 41 in this embodiment can accelerate the temperature drop of the catalyst bed 7 taken out of the furnace, and speed up the speed of replacing the catalyst in the catalyst bed 7.
[0033] The projection surface of the furnace body 1 in this embodiment is a rectangular structure, which is used to facilitate the installation of the sliding structure. The furnace cover 11 is fixedly arranged on the top of the furnace body 1. The furnace cover 11 is a four-sided pyramid structure, which is used to make the gas discharged from the furnace top gather at the furnace top to facilitate gas discharge. The gas outlet pipe 2 is fixedly arranged on the top of the furnace cover 11. The gas in the furnace in this embodiment flows upward due to the increase of combustion temperature, and the gas with lower temperature flows to the bottom of the furnace body 1 for re-combustion and heating. In this embodiment, the fuel burns more fully and generates less waste gas.
[0034] The working process of replacing the catalyst of the utility model is as follows: first, the first telescopic member 61 and the second telescopic member 62 are simultaneously retracted to drive the sealing door 5 to rotate to 90° relative to the material replacement gap 12, and then the catalyst bed 7 is moved by the moving handle 73 to be moved out of the furnace body 1 along the first limit plate 52 and the second limit plate 53 to the sealing door 5. At this time, the cooling fan 41 is started to cool the catalyst bed 7, and the catalyst can be replaced after the cooling is completed.
[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A catalytic combustion furnace for preventing exhaust gas leakage, comprising a furnace body (1), characterized in that: A combustion chamber (13) is provided in the furnace body (1), a catalyst bed (7) is provided at the upper end of the combustion chamber (13), a sliding structure is provided between the catalyst bed (7) and the inner wall of the furnace body (1) for enabling the catalyst bed (7) to be slidably connected relative to the furnace body (1), a material exchange notch (12) is provided on the outer wall of the furnace body (1) near the catalyst bed (7), a sealing door (5) is rotatably connected at the bottom of the material exchange notch (12), a guiding structure for guiding the catalyst bed (7) to enter the sealing door (5) is provided on the sealing door (5), a control structure is provided between the outer wall of the furnace body (1) and the box door for controlling the sealing door (5) to rotate 90 degrees relative to the outer wall of the furnace body (1) or to close the sealing door (5) to seal the material exchange notch (12), and a cooling structure is also provided at the upper end of the material exchange notch (12) for reducing the temperature of the catalyst bed (7).
2. A catalytic combustion furnace for preventing exhaust gas leakage according to claim 1, characterized in that: The projection surface of the furnace body (1) is a rectangular structure. A furnace cover (11) is fixed on the top of the furnace body (1). The furnace cover (11) is a quadrangular pyramid structure. An air outlet pipe (2) is fixed on the top of the furnace cover (11).
3. The catalytic combustion furnace for preventing exhaust gas leakage according to claim 1, characterized in that: The combustion chamber (13) is a rectangular parallelepiped structure. The sliding structure comprises a first sliding rail (81) and a second sliding rail (82). The first sliding rail (81) and the second sliding rail (82) are parallel to each other and are respectively fixedly arranged on the sides of the combustion chamber (13). The first sliding rail (81) and the second sliding rail are respectively provided with a first sliding groove (811) and a second sliding groove (821). The cross-sections of the first sliding groove (811) and the second sliding groove (821) are "convex" structures, and the first sliding groove (811) and the second sliding groove (821) are arranged opposite to each other. Slide blocks (74) slidingly connected to the first sliding groove (811) and the second sliding groove (821) are respectively provided on both sides of the catalyst bed (7).
4. A catalytic combustion furnace for preventing exhaust gas leakage according to claim 3, characterized in that: The material exchange notch (12) and the box door are both rectangular structures. The guiding structure includes a first limit plate (52) and a second limit plate (53). The first limit plate (52) and the second limit plate (53) are parallel to each other and fixedly arranged on the side of the box door close to the combustion chamber (13). The first limit plate (52) corresponds to the first sliding rail (81), and the second limit plate (53) corresponds to the second sliding rail (82). A third limit plate (54) is fixed to the ends of the first limit plate (52) and the second limit plate (53) away from the first sliding rail (81). Rotating parts (51) are arranged on both sides of the bottom of the material exchange notch (12), and the rotating parts (51) on both sides of the box door are evenly connected in rotation.
5. The catalytic combustion furnace for preventing exhaust gas leakage according to claim 3, characterized in that: The control structure comprises a first telescopic member (61) and a second telescopic member (62); a support plate (3) is provided on the outer wall of the furnace body (1); the support plate (3) is located at the lower side of the rotating member (51); the first telescopic member (61) and the second telescopic member (62) are parallel to each other; the fixed end of the first telescopic member (61) and the fixed end of the second telescopic member (62) are both rotatably connected to the two sides of the support plate (3); the telescopic end of the first telescopic member (61) and the telescopic end of the second telescopic member (62) are both rotatably connected to the two sides of the door.
6. The catalytic combustion furnace for preventing exhaust gas leakage according to claim 1, characterized in that: The cooling structure comprises a cooling fan (41); a mounting plate (4) is provided on the outer wall of the furnace body (1); the mounting plate (4) is located on the upper side of the material replacement notch (12); and the cooling fan (41) is fixedly connected to the lower end of the mounting plate (4) by means of threads.
7. The catalytic combustion furnace for preventing exhaust gas leakage according to claim 1, characterized in that: A placement groove (71) is provided in the catalyst bed (7), a plurality of ventilation holes (72) are provided at the bottom of the placement groove (71), the projection surface of the placement groove (71) is a rectangular structure, and a moving handle (73) is also provided on the catalyst bed (7) near the material exchange notch (12).