Heat exchange device for sintering flue gas treatment device

Abstract

The utility model relates to heat exchange device technical field, concretely relates to a kind of heat exchange device for sintering flue gas treatment device, including shell, the shell top surface is open structure, the shell top surface detachably connected with top cover, the shell rear side wall is connected with second heat exchange import, the shell front side wall is connected with second heat exchange outlet, the shell left side wall is connected with first heat exchange inlet pipe, the shell right side wall is connected with first heat exchange inlet pipe, first heat exchange inlet pipe, first heat exchange outlet pipe detachably connected with heat exchange replacement pipe between.The utility model sets up the pipeline of heat exchange part as replaceable structure, to facilitate the maintenance and maintenance of heat exchange device, improve the exchange efficiency of heat exchange.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange device technology, and specifically to a heat exchange device for a sintering flue gas treatment device. Background Technology

[0002] Hazardous waste sintering flue gas contains complex components such as acidic gases, particulate matter, and organic matter. Different process stages have different temperature requirements. A heat exchanger is a device that transfers a portion of the heat from a hot fluid to a cold fluid. Its main function is to ensure the specific temperature required by the process medium. It can transfer heat between two or more fluids at different temperatures, allowing heat to flow from a higher-temperature fluid to a lower-temperature fluid, ensuring the fluid temperature reaches the specified parameters and meets the process requirements. Simultaneously, heat exchangers are also important for improving energy utilization efficiency. During heat exchange between sintering flue gas and between sintering flue gas and air, crystallization inevitably occurs in the heat exchange pipes of the heat exchanger due to the continuous heating of the fluid. This is detrimental to gas heat exchange. Furthermore, with long-term use, the deposits on the heat exchange pipes increase resistance and may even render the system unusable. Both of these phenomena directly affect the efficiency of heat exchange. Utility Model Content

[0003] The purpose of this invention is to provide a heat exchange device for a sintering flue gas treatment apparatus to solve the above-mentioned problems. The pipes of the heat exchange section are designed to be replaceable, thereby facilitating the maintenance and repair of the heat exchange device and improving the heat exchange efficiency.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] A heat exchange device for sintering flue gas treatment includes a shell, the top surface of which is open, a top cover is detachably connected to the top surface of the shell, a second heat exchange inlet is connected to the rear side wall of the shell, a second heat exchange outlet is connected to the front side wall of the shell, a first heat exchange inlet pipe is connected to the left side wall of the shell, a first heat exchange inlet pipe is connected to the right side wall of the shell, and a heat exchange replacement pipe is detachably connected between the first heat exchange inlet pipe and the first heat exchange outlet pipe.

[0006] Preferably, the number of heat exchange replacement tubes matches the number of the first heat exchange inlet tubes and the first heat exchange outlet tubes. Each heat exchange replacement tube is connected to a corresponding first heat exchange inlet tube and first heat exchange outlet tube. Each heat exchange replacement tube is connected to the first heat exchange inlet tube and the first heat exchange outlet tube through a detachable component. Several detachable components are driven by the same driving component.

[0007] Preferably, the detachable component includes a movable tube, which is slidably sleeved on the ends of the corresponding first heat exchange inlet pipe, heat exchange replacement pipe and the corresponding first heat exchange outlet pipe and heat exchange replacement pipe. The driving component is connected to a plurality of the movable tubes in a driving connection. A sealing component is provided at the joint between the movable tube and the first heat exchange inlet pipe and the first heat exchange outlet pipe.

[0008] Preferably, the sealing component includes a first convex ring fixedly connected to the outside of the first heat exchange inlet pipe and the first heat exchange outlet pipe respectively, a first stepped ring fixedly connected to one end of the inner wall of the movable pipe, and a second stepped ring fixedly connected to the other end of the inner wall of the movable pipe. The inner diameter of the first stepped ring matches the outer diameter of the first heat exchange inlet pipe and the first heat exchange outlet pipe. Both ends of the heat exchange replacement pipe are provided with necked sections, and the inner diameter of the second stepped ring matches the necked sections.

[0009] Preferably, the inner walls of the first stepped ring and the second stepped ring are respectively movably fitted with sealing piston rings, and a flexible metal tube is fixedly connected between the end of the movable tube and the inner wall of the outer shell, and the flexible metal tube is sleeved on the outside of the first heat exchange outlet tube.

[0010] Preferably, the driving component includes a connecting block fixedly connected between a plurality of the movable tubes, a rack fixedly connected to the bottom surface of the lowermost connecting block, the rack meshing with a gear, and a rotating shaft connected to the gear shaft passing through the housing and fixedly connected to a crank handle.

[0011] This utility model has the following technical effects:

[0012] This invention makes the heat exchange replacement tube replaceable, allowing for direct replacement after a certain period of equipment use. The replaced heat exchange replacement tube can be cleaned. The detachable design of the top cover and outer shell facilitates easy disassembly for replacing the heat exchange replacement tube. Specifically, when the heat exchange replacement tube needs to be replaced, the top cover is removed, and then the heat exchange replacement tube is replaced. After replacement, the top cover is reinstalled, and the equipment can continue to be used. This method not only reduces equipment downtime but also effectively improves the heat exchange efficiency of the heat exchange device due to the replacement of the heat exchange replacement tube. The inner or outer wall of the replaced heat exchange replacement tube can be cleaned and reused. This design not only facilitates maintenance but also improves the processing efficiency of heat exchange. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the mating structure of the movable tube and the sealing piston ring of this utility model;

[0016] Figure 3 This is a schematic diagram of the positioning block in Embodiment 2 of this utility model;

[0017] Figure 4 This is a schematic diagram of the sealing piston ring in Embodiment 3 of this utility model.

[0018] The components are as follows: 1. Outer shell; 2. Top cover; 3. Locking screw; 4. First heat exchange inlet pipe; 401. First convex ring; 5. Heat exchange replacement pipe; 501. Necked section; 6. First heat exchange outlet pipe; 7. Second heat exchange inlet; 8. Movable pipe; 801. First stepped ring; 802. Second stepped ring; 9. Rack; 901. Gear; 10. Connecting block; 11. Positioning block; 1101. Positioning groove; 12. Sealing piston ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figures 1 to 2As shown, this embodiment provides a heat exchange device for a sintering flue gas treatment apparatus, including a shell 1. The top surface of the shell 1 is an open structure. A top cover 2 is detachably connected to the top surface of the shell 1. A second heat exchange inlet 7 is connected to the rear side wall of the shell 1. A second heat exchange outlet is connected to the front side wall of the shell 1. A first heat exchange inlet pipe 4 is connected to the left side wall of the shell 1. A first heat exchange inlet pipe 4 is connected to the right side wall of the shell 1. A heat exchange replacement pipe 5 is detachably connected between the first heat exchange inlet pipe 4 and the first heat exchange outlet pipe 6.

[0022] This invention makes the heat exchange replacement tube 5 replaceable, allowing it to be directly replaced after a certain period of use. The replaced heat exchange replacement tube 5 can be cleaned. The detachable connection between the top cover 2 and the outer shell 1 facilitates the disassembly and replacement of the heat exchange replacement tube 5. Specifically, when the heat exchange replacement tube 5 needs to be replaced, the top cover 2 is removed, and then the heat exchange replacement tube 5 is replaced. After replacement, the top cover 2 is reinstalled, and the device can continue to be used. This method not only reduces equipment downtime but also effectively improves the heat exchange efficiency of the heat exchange device due to the replacement of the heat exchange replacement tube 5. The inner or outer wall of the replaced heat exchange replacement tube 5 can be cleaned and reused. This design not only facilitates maintenance but also improves the processing efficiency of heat exchange.

[0023] The scheme is further optimized so that the number of heat exchange replacement tubes 5 matches the number of first heat exchange inlet tubes 4 and first heat exchange outlet tubes 6. Each heat exchange replacement tube 5 is connected to a corresponding first heat exchange inlet tube 4 or first heat exchange outlet tube 6. Each heat exchange replacement tube 5 is connected to the first heat exchange inlet tube 4 or first heat exchange outlet tube 6 through a detachable component. Several detachable components are connected to the same driving component.

[0024] The scheme is further optimized. The detachable component includes a movable tube 8, which is slidably sleeved on the end of the corresponding first heat exchange inlet tube 4, heat exchange replacement tube 5 and the corresponding first heat exchange outlet tube 6, heat exchange replacement tube 5. The driving component is connected to several movable tubes 8 in a transmission manner. A sealing component is provided at the joint between the movable tube 8 and the first heat exchange inlet tube 4 and the first heat exchange outlet tube 6.

[0025] The design is further optimized. The sealing components include a first convex ring 401 fixedly connected to the outside of the first heat exchange inlet pipe 4 and the first heat exchange outlet pipe 6, a first stepped ring 801 fixedly connected to one end of the inner wall of the movable pipe 8, and a second stepped ring 802 fixedly connected to the other end of the inner wall of the movable pipe 8. The inner diameter of the first stepped ring 801 matches the outer diameter of the first heat exchange inlet pipe 4 and the first heat exchange outlet pipe 6. Both ends of the heat exchange replacement pipe 5 are provided with necked sections 501, and the inner diameter of the second stepped ring 802 matches the necked sections 501.

[0026] In a further optimized design, sealing piston rings 12 are movably embedded in the inner walls of the first step ring 801 and the second step ring 802, and a flexible metal tube 13 is fixedly connected between the end of the movable tube 8 and the inner wall of the outer shell 1. The flexible metal tube 13 is sleeved on the outside of the first heat exchange outlet tube 6.

[0027] The purpose of setting up the flexible metal tube 13 is to take into account the crystallization phenomenon that may occur during the use of the heat exchanger. In order to prevent the crystallization on the outside of the first heat exchange outlet tube 6 from affecting the movement of the movable tube 8, the flexible metal tube 13 is set up to prevent the crystallization from adhering to the outside of the first heat exchange outlet tube 6 and affecting the movement of the movable tube 8.

[0028] The further optimized solution includes a drive component comprising a connecting block 10 fixedly connected between several movable tubes 8. A rack 9 is fixedly connected to the bottom surface of the lowest connecting block 10. The rack 9 meshes with a gear 901. The shaft of the gear 901 passes through the outer casing 1 and is fixedly connected to a crank handle.

[0029] In this invention, the top cover 2 and the outer shell 1 are detachably connected by locking screws 3. When replacing the heat exchange replacement tube 5, first remove the top cover 2, then turn the handle to rotate the gear 901. The gear 901 will drive the rack 9 to move horizontally, and further, the rack will drive several movable tubes 8 to move horizontally. After the movable tubes 8 are disengaged from the first heat exchange inlet tube 4 and the first heat exchange outlet tube 6, the heat exchange replacement tube 5 can be removed. After removing the heat exchange replacement tube 5, the new heat exchange replacement tube 5 is installed into the outer shell 1. Then, turn the handle to rotate the gear 901 in the opposite direction, so that the movable tube 8 is fitted onto the heat exchange replacement tube. Outside of tube 5, the replacement of heat exchange replacement tube 5 is realized. When the movable tube 8 moves into place (i.e., when it is connected to the first heat exchange inlet tube 4 and the first heat exchange outlet tube 6), the first convex ring 401 and the second stepped ring 802 are in contact, and the end of the normal diameter of the heat exchange replacement tube 5 is in contact with the end of the movable tube 8. The sealing piston ring can adopt a structure similar to the piston ring in the cylinder of an automobile engine. This piston ring needs to have a certain elasticity and cannot be set as a seal. Therefore, the first convex ring 401 and the second stepped ring 802 are in contact, and the end of the normal diameter of the heat exchange replacement tube 5 is in contact with the end of the movable tube 8, which can enhance the airtightness.

[0030] Example 2:

[0031] Reference Figure 3 As shown, the difference between this embodiment and embodiment one is that a positioning block 11 is fixedly connected to the bottom wall inside the outer shell 1. The top surface of the positioning block 11 is provided with several positioning grooves 1101. The position of the positioning grooves 1101 matches the position of the heat exchange replacement tube 5 located at the bottom. This setting can facilitate the positioning of the heat exchange replacement tube 5 during replacement and make it easier to replace the heat exchange replacement tube 5.

[0032] Example 3:

[0033] Reference Figure 4 As shown, the only difference between this embodiment and Embodiment 1 is that one end of the inner wall of the sealing piston ring 12 is provided with a bevel, which is located on the side facing the heat exchange tube 5. This arrangement can give the bevel a certain guiding effect, making it easier for the movable tube 8 to connect to the heat exchange tube 5.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A heat exchange device for a sintering flue gas treatment apparatus, characterized in that, Includes an outer shell (1), the top surface of which is an open structure, a top cover (2) is detachably connected to the top surface of the outer shell (1), a second heat exchange inlet (7) is connected to the rear side wall of the outer shell (1), a second heat exchange outlet is connected to the front side wall of the outer shell (1), a first heat exchange inlet pipe (4) is connected to the left side wall of the outer shell (1), a first heat exchange inlet pipe (4) is connected to the right side wall of the outer shell (1), and a heat exchange replacement pipe (5) is detachably connected between the first heat exchange inlet pipe (4) and the first heat exchange outlet pipe (6).

2. The heat exchange device for a sintering flue gas treatment apparatus according to claim 1, characterized in that, The number of heat exchange replacement tubes (5) matches the number of the first heat exchange inlet tubes (4) and the first heat exchange outlet tubes (6). Each heat exchange replacement tube (5) is connected to a corresponding first heat exchange inlet tube (4) and first heat exchange outlet tube (6). Each heat exchange replacement tube (5) is connected to the first heat exchange inlet tube (4) and the first heat exchange outlet tube (6) through a detachable component. Several detachable components are connected to the same driving component.

3. The heat exchange device for a sintering flue gas treatment apparatus according to claim 2, characterized in that, The detachable component includes a movable tube (8), which is slidably sleeved on the ends of the corresponding first heat exchange inlet tube (4), heat exchange replacement tube (5) and the corresponding first heat exchange outlet tube (6), heat exchange replacement tube (5). The driving component is connected to several of the movable tubes (8) in a transmission manner. A sealing component is provided at the joint between the movable tube (8) and the first heat exchange inlet tube (4) and the first heat exchange outlet tube (6).

4. A heat exchange device for a sintering flue gas treatment apparatus according to claim 3, characterized in that, The sealing component includes a first convex ring (401) fixedly connected to the outside of the first heat exchange inlet pipe (4) and the first heat exchange outlet pipe (6), a first stepped ring (801) fixedly connected to one end of the inner wall of the movable pipe (8), and a second stepped ring (802) fixedly connected to the other end of the inner wall of the movable pipe (8). The inner diameter of the first stepped ring (801) matches the outer diameter of the first heat exchange inlet pipe (4) and the first heat exchange outlet pipe (6). The two ends of the heat exchange replacement pipe (5) are provided with necked sections (501), and the inner diameter of the second stepped ring (802) matches the necked section (501).

5. A heat exchange device for a sintering flue gas treatment apparatus according to claim 4, characterized in that, The inner walls of the first step ring (801) and the second step ring (802) are respectively movably fitted with sealing piston rings (12). A flexible metal tube (13) is fixedly connected between the end of the movable tube (8) and the inner wall of the outer shell (1). The flexible metal tube (13) is sleeved on the outside of the first heat exchange outlet tube (6).

6. A heat exchange device for a sintering flue gas treatment apparatus according to claim 3, characterized in that, The drive component includes a connecting block (10) fixedly connected between several of the movable tubes (8). The bottom surface of the connecting block (10) located at the bottommost point is fixedly connected to a rack (9). The rack (9) meshes with a gear (901). The shaft of the gear (901) passes through the outer shell (1) and is fixedly connected to a crank handle.

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