A desulfurization flue heat recycling device

Abstract

The utility model discloses a kind of desulfurization flue heat recycling devices, applied in desulfurization flue cooling technical field, including mounting assembly, the mounting assembly includes mounting bracket, the inner chamber of the mounting bracket is slidably connected with two housings, the opposite side of two housings is mutually clamped, the inner chamber of two housings is clamped with positioning assembly, the two sides of the top of two housings are all clamped with clamping position assembly, the clamping position assembly includes two clamping position plates, the inner chamber of the clamping position plate is fixedly installed with housing, when needing to overhaul heat exchange tube group in housing, at this time, user withdraws clamping position bar from mounting plate and mounting bracket, then withdraws mounting plate from movable rack and cancels clamping with housing, after, movable rack is far away from housing, and two housings are withdrawn from mounting bracket with internal structure, then connect pipe and clamping position assembly and housing cancel clamping, after two housings are separated, the heat exchange tube group supported by positioning plate can be overhauled.

Description

Technical Field

[0001] This utility model belongs to the field of desulfurization flue gas cooling technology, and specifically relates to a desulfurization flue gas heat recovery and utilization device. Background Technology

[0002] Desulfurization flue gas heat recovery equipment is a device designed to collect and reuse waste heat in desulfurization flues. It is mainly used in industrial production, especially in thermal power plants and steel smelters, which generate a large amount of sulfur-containing flue gas during operation. Therefore, desulfurization is an important environmental protection step. The flue gas discharged during this process contains a lot of waste heat. The heat recovery equipment is designed to extract and effectively utilize this heat that was originally wasted.

[0003] Current desulfurization flue gas heat recovery and utilization devices include a low-temperature fluoroplastic heat exchanger. This equipment consists of fluoroplastic heat exchange tubes, tube sheets, a shell, and inlet / outlet pipes. The fluoroplastic heat exchange tubes are the core component, typically lined with fluoroplastics such as polytetrafluoroethylene (PTFE) and outerened with metal tubes such as stainless steel, combining the excellent corrosion resistance of fluoroplastics with the strength and thermal conductivity of metal tubes. The tube sheet is used to fix the heat exchange tubes and separate the tube side from the shell side; the shell encloses the internal components, forming a flow space for flue gas and the heated medium; and the inlet / outlet pipes connect the flue gas duct and the heated medium piping.

[0004] However, when existing low-temperature fluoroplastic heat exchangers need internal maintenance, it is necessary to loosen the bolts one by one or deal with the complex welding and riveting structure, which requires a lot of time and effort, resulting in long-term equipment downtime and affecting the continuity of use. Utility Model Content

[0005] The purpose of this utility model is to provide a desulfurization flue heat recovery and utilization device, the advantage of which is that the shell of the low-temperature fluoroplastic heat exchanger can be quickly opened during maintenance to perform rapid internal maintenance.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a desulfurization flue heat recovery and utilization device, including an installation assembly, the installation assembly including an installation frame, the inner cavity of the installation frame having two housings slidably connected, the opposite sides of the two housings being interlocked with each other, the inner cavities of the two housings being interlocked with positioning components, the top sides of the two housings being interlocked with locking components, the locking components including two locking plates, the inner cavities of the locking plates being fixedly installed with the housings, the side of the housing away from the locking components being interlocked with a connecting pipe, and the opposite sides of the top sides of the inner cavities of the two housings being interlocked with four heat exchange tube groups.

[0007] Using the above technical solution: When it is necessary to inspect the heat exchange tube assembly inside the shell, the user pulls the locking rod out of the mounting plate and mounting bracket, then pulls the mounting plate out of the movable bracket and unhooks it from the shell. After that, the movable bracket is moved away from the shell, and the two shells along with their internal structures can be pulled out of the mounting bracket. Then, the connecting pipe is unhooked from the locking assembly and the shell. After the two shells are separated, the heat exchange tube assembly supported by the positioning plate can be inspected. When it is necessary to position the heat exchange tubes in the heat exchange tube assembly during installation, the flat side of the positioning plate with only one support block is first installed with the inner cavity of the shell. Then, the heat exchange tube assemblies can be adjusted in position on the surface of the installed positioning plate by adjusting the support blocks. Finally, the fixing plate is re-hooked with the positioning plate and the shell to complete the positioning during the installation process.

[0008] The present invention is further configured such that both sides of the mounting bracket are movably connected to a movable bracket via a pivot pin, and a mounting plate is slidably connected to the inner cavity of the movable bracket, and the inner cavity of the mounting plate is engaged with the housing.

[0009] The above technical solution involves connecting the movable frame and the mounting frame via a pivot pin, allowing the movable frame to rotate and open around the pivot pin. This provides operational space for the housing to be pulled out of the mounting frame. The mounting plate is slidably connected within the movable frame and engages with the housing. This not only fixes the position of the housing within the mounting frame, preventing it from shaking during operation, but also allows for quick release of the engagement with the housing via the sliding mounting plate. Combined with the rotation and opening of the movable frame, this enables the housing to be quickly pulled out, facilitating subsequent maintenance.

[0010] The present invention is further configured such that a locking rod is slidably connected to the inner cavity of the movable frame, and the surface of the locking rod engages with the inner cavity of the mounting frame.

[0011] The above technical solution is adopted: by sliding the locking rod into the inner cavity of the mounting bracket, the relative position of the movable bracket and the mounting bracket can be locked, preventing the movable bracket from rotating and opening due to vibration during the operation of the device, thus ensuring the stability of the housing installation; during maintenance, only the locking rod needs to be pulled out to unlock the movable bracket, allowing it to rotate freely. The operation is simple and requires no tools, which greatly shortens the preparation time before the housing is removed and improves maintenance efficiency.

[0012] The present invention is further configured such that a retaining frame is slidably connected to the inner cavity of the movable frame, and the surface of the retaining frame is slidably connected to the mounting plate and the inner cavity of the housing, respectively.

[0013] The above technical solution is adopted: the fixing frame passes through both the mounting plate and the shell at the same time, forming a double fixation, which further enhances the connection stability of the shell, the mounting plate and the movable frame, and avoids the shell displacement caused by flue vibration.

[0014] The present invention is further configured such that the positioning assembly includes five positioning plates, the bottom of the positioning plates is in contact with the inner cavity of the shell, the opposite sides of every two positioning plates are interlocked, the opposite sides of every two positioning plates are in contact with the heat exchange tube assembly, the top of the positioning plates is interlocked with a retaining plate, and the inner cavity of the retaining plate is slidably connected to the inner cavity of the shell.

[0015] The above technical solution involves five positioning plates clamping the heat exchange tube assembly from the front and rear sides, providing support and positioning for the heat exchange tube assembly. This isolates the heat exchange tubes while simultaneously positioning them. The sliding connection between the positioning plates and the shell, along with the snap-fit ​​engagement between the fixing plates and the positioning plates and the shell, allows the positioning assembly to be pulled out of the shell as a whole. This facilitates individual maintenance or replacement of the heat exchange tube assembly. During disassembly, removing the fixing plates allows the positioning plates and heat exchange tube assembly to be slidably pulled out without disassembling the entire shell.

[0016] The present invention is further configured such that several support blocks are fixedly installed on one side of each pair of positioning plates, and the surface of the support blocks is in contact with the heat exchange tube assembly.

[0017] The above technical solution is adopted: by increasing the contact points between the positioning plate and the heat exchange tube assembly by using support blocks, the positioning effect of the positioning plate on the heat exchange tube assembly is further improved, ensuring tight positioning and fitting, while not affecting the disassembly and assembly of the heat exchange tube assembly, thus improving the versatility and protection of the positioning components.

[0018] The present invention is further configured such that a positioning ring is slidably connected to the surface of the positioning plate, a positioning shell is engaged between the tops of the two positioning rings, and the bottom of the positioning shell is engaged with the positioning plate.

[0019] The above technical solution involves using a locking ring to slide and lock the locking edge of the locking plate, which, together with the locking shell and the locking plate, forms a double locking structure for the two shells. This prevents the shells from separating due to internal pressure or vibration during operation, ensuring the device's airtightness. Furthermore, during maintenance, only the locking shell and the sliding locking ring need to be removed to release the double constraint of the locking shells on the installation components, quickly separating the two shells, exposing the internal heat exchange tube assembly and positioning components, and shortening the time required to open the shells.

[0020] In summary, this utility model has the following beneficial effects: 1. When it is necessary to inspect and repair the heat exchange tube assembly inside the shell, the user pulls the locking rod out of the mounting plate and mounting bracket, then pulls the mounting plate out of the movable bracket and unlocks it from the shell. After that, the movable bracket is moved away from the shell, and the two shells along with their internal structures can be pulled out of the mounting bracket. Then, the connecting pipe is unlocked from the locking assembly and the shell. After the two shells are separated, the heat exchange tube assembly supported by the positioning plate can be inspected and repaired. 2. When it is necessary to position the heat exchange tubes in the heat exchange tube assembly during installation, first install the flat side of the positioning plate with only one support block installed on it to the inner cavity of the shell. Then, the heat exchange tube assembly can be installed in sequence on the surface of the positioning plate after installation, and the installation position can be adjusted by the support block. Finally, the fixing plate is re-clamped to the positioning plate and the shell to complete the positioning during the installation process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rear-view exploded view of the installation components of this utility model; Figure 3 This is an exploded view of the positioning component of this utility model; Figure 4 This is an exploded view of the card slot component of this utility model.

[0022] Reference numerals: 1. Mounting assembly; 101. Mounting bracket; 102. Movable bracket; 103. Mounting plate; 104. Positioning rod; 105. Fixing bracket; 2. Housing; 3. Positioning assembly; 301. Positioning plate; 302. Fixing plate; 303. Support block; 4. Positioning assembly; 401. Positioning plate; 402. Positioning ring; 403. Positioning shell; 5. Connecting pipe; 6. Heat exchanger tube assembly. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Example 1: refer to Figure 1 , Figure 2 and Figure 4 A desulfurization flue heat recovery and utilization device includes an installation component 1. The installation component 1 includes an installation frame 101. Two housings 2 are slidably connected to the inner cavity of the installation frame 101. The two housings 2 are each clamped to both sides of the top of the two housings 2. The clamping component 4 includes two clamping plates 401. The inner cavity of the clamping plate 401 is fixedly installed with the housing 2. A connecting pipe 5 is clamped to the side of the housing 2 away from the clamping component 4. Four heat exchange tube groups 6 are clamped to the opposite sides of the top of the inner cavities of the two housings 2.

[0025] Furthermore, both sides of the mounting bracket 101 are movably connected to the movable bracket 102 via pivot pins, and the inner cavity of the movable bracket 102 is slidably connected to the mounting plate 103, and the inner cavity of the mounting plate 103 is engaged with the housing 2.

[0026] Furthermore, the inner cavity of the movable frame 102 is slidably connected with a locking rod 104, and the surface of the locking rod 104 engages with the inner cavity of the mounting frame 101.

[0027] Furthermore, a retaining frame 105 is slidably connected to the inner cavity of the movable frame 102, and the surface of the retaining frame 105 is slidably connected to the mounting plate 103 and the inner cavity of the housing 2, respectively.

[0028] Furthermore, a positioning ring 402 is slidably connected to the surface of the positioning plate 401, and a positioning shell 403 is engaged between the tops of the two positioning rings 402, with the bottom of the positioning shell 403 engaged with the positioning plate 401.

[0029] Brief description of usage: When it is necessary to inspect the heat exchange tube assembly 6 inside the shell 2, the user pulls out the locking rod 104 and the retaining bracket 105 from the mounting plate 103 and the mounting bracket 101. Then, the user pulls out the mounting plate 103 from the movable bracket 102 and releases it from the shell 2. After releasing the movable bracket 102 away from the shell 2, the two shells 2, along with their internal structures, can be pulled out from the mounting bracket 101. Then, the connecting pipe 5 is released from the shell 2. Next, the locking ring 402 and the locking shell 403 in the locking assembly 4 are pulled out, and the two shells 2 are released from the locking assembly. After the two shells 2 are separated, the heat exchange tube assembly 6, which is supported by the positioning plate 301, can be inspected. Repair and maintenance: If the damaged heat exchanger tube assembly 6 needs to be replaced, disconnect the heat exchanger tube assembly 6, positioning plate 301, and fixing plate 302 from the shell 2 to complete the replacement of the heat exchanger tube assembly 6. If reinstallation is required, connect the heat exchanger tube assembly 6 to the positioning assembly 3 in sequence and then reinstall it to the shell 2. The movable frame 102 is connected to the mounting frame 101 by a pivot pin, allowing the movable frame 102 to rotate and open around the pivot pin, providing operating space for the shell 2 to be pulled out from the mounting frame 101. The mounting plate 103 is slidably connected to the movable frame 102 and is engaged with the shell 2, which can both fix the position of the shell 2 in the mounting frame 101 to prevent the shell 2 from shaking during operation and allow for... The sliding mounting plate 103 quickly releases its engagement with the housing 2, allowing the movable frame 102 to rotate and open, enabling the housing 2 to be quickly pulled out for subsequent maintenance. The locking rod 104 slides into the inner cavity of the mounting frame 101, locking the relative position of the movable frame 102 and the mounting frame 101 to prevent the movable frame 102 from rotating open due to vibration during device operation, ensuring stable installation of the housing 2. During maintenance, simply pulling out the locking rod 104 unlocks the movable frame 102, allowing it to rotate freely; the operation is simple and tool-free, significantly reducing preparation time before removing the housing 2 and improving maintenance efficiency. The retaining bracket 105 simultaneously penetrates both the mounting plate 103 and the housing 2, forming... The double-fixed structure further enhances the connection stability between the shell 2, the mounting plate 103 and the movable frame 102, preventing the shell 2 from shifting due to flue vibration. The locking ring 402 slides to lock the locking edge of the locking plate 401, and together with the locking shell 403 and the locking plate 401, a double-locking structure is formed for the two shells 2. This prevents the shells 2 from separating due to internal pressure or vibration during operation, ensuring the sealing of the device. Moreover, during maintenance, only the locking shell 403 and the sliding locking ring 402 need to be removed to release the double constraint of the mounting component 1 on the shells 2, quickly separating the two shells 2, exposing the internal heat exchange tube group 6 and the positioning component 3, and shortening the time to open the shells 2.

[0030] Example 2: refer to Figure 1 and Figure 3A desulfurization flue heat recovery and utilization device includes two housings 2, which are interlocked on opposite sides, and positioning components 3 are interlocked in the inner cavities of the two housings 2.

[0031] Furthermore, the positioning assembly 3 includes five positioning plates 301. The bottom of the positioning plates 301 contacts the inner cavity of the housing 2. The opposite sides of every two positioning plates 301 are interlocked. The surface of the opposite side of every two positioning plates 301 contacts the heat exchange tube assembly 6. The top of the positioning plates 301 is interlocked with a retaining plate 302. The inner cavity of the retaining plate 302 is slidably connected to the inner cavity of the housing 2.

[0032] Furthermore, several support blocks 303 are fixedly installed on the opposite side of every two positioning plates 301, and the surface of the support blocks 303 is in contact with the heat exchange tube assembly 6.

[0033] Brief description of usage: When positioning the heat exchange tubes in the heat exchange tube assembly 6 during installation, first install the flat side of the positioning plate 301 (with only one support block 303 installed) into the inner cavity of the shell 2. Then, sequentially adjust the installation position of the heat exchange tube assembly 6 onto the surface of the installed positioning plate 301 using the support blocks 303. Finally, re-engage the fixing plate 302 with the positioning plate 301 and the shell 2 to complete the positioning during installation. The five positioning plates 301 clamp the heat exchange tube assembly 6 from the front and rear, providing support and positioning, isolating the heat exchange tubes, and simultaneously completing the positioning process. The positioning assembly 3 is positioned by sliding the positioning plate 301 to the housing 2 and engaging the positioning plate 302 with the positioning plate 301 and the housing 2. This allows the positioning assembly 3 to be pulled out of the housing 2 as a whole, facilitating individual maintenance or replacement of the heat exchange tube assembly 6. During disassembly, the positioning plate 301 and the heat exchange tube assembly 6 can be slidably pulled out by removing the positioning plate 302, without disassembling the entire housing 2. The support block 303 increases the contact points between the positioning plate 301 and the heat exchange tube assembly 6, further improving the positioning effect of the positioning plate 301 on the heat exchange tube assembly 6, ensuring a tight fit, and without affecting the disassembly and assembly of the heat exchange tube assembly 6, thus improving the versatility and protection of the positioning assembly 3.

[0034] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0035] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A desulfurization flue heat recovery and utilization device, comprising an installation assembly (1), characterized in that: The installation assembly (1) includes a mounting bracket (101), the inner cavity of which is slidably connected to two housings (2), the opposite sides of the two housings (2) are interlocked, the inner cavities of the two housings (2) are interlocked with positioning components (3), and the top sides of the two housings (2) are interlocked with positioning components (4). The positioning components (4) include two positioning plates (401), the inner cavity of the positioning plates (401) is fixedly installed with the housings (2), the side of the housings (2) away from the positioning components (4) is interlocked with a connecting pipe (5), and the opposite sides of the top sides of the inner cavities of the two housings (2) are interlocked with four heat exchange tube groups (6).

2. The desulfurization flue heat recovery and utilization device according to claim 1, characterized in that: Both sides of the mounting bracket (101) are movably connected to the movable bracket (102) by axle pins. The inner cavity of the movable bracket (102) is slidably connected to the mounting plate (103), and the inner cavity of the mounting plate (103) is engaged with the shell (2).

3. The desulfurization flue heat recovery and utilization device according to claim 2, characterized in that: The inner cavity of the movable frame (102) is slidably connected to a locking rod (104), and the surface of the locking rod (104) engages with the inner cavity of the mounting frame (101).

4. The desulfurization flue heat recovery and utilization device according to claim 2, characterized in that: The inner cavity of the movable frame (102) is slidably connected to a retaining frame (105), and the surface of the retaining frame (105) is slidably connected to the mounting plate (103) and the inner cavity of the housing (2).

5. The desulfurization flue heat recovery and utilization device according to claim 1, characterized in that: The positioning assembly (3) includes five positioning plates (301). The bottom of the positioning plates (301) is in contact with the inner cavity of the shell (2). The opposite sides of every two positioning plates (301) are interlocked. The surface of the opposite side of every two positioning plates (301) is in contact with the heat exchange tube assembly (6). The top of the positioning plates (301) is interlocked with a retaining plate (302). The inner cavity of the retaining plate (302) is slidably connected to the inner cavity of the shell (2).

6. The desulfurization flue heat recovery and utilization device according to claim 5, characterized in that: Several support blocks (303) are fixedly installed on the opposite side of each pair of positioning plates (301), and the surface of the support blocks (303) is in contact with the heat exchange tube assembly (6).

7. The desulfurization flue heat recovery and utilization device according to claim 1, characterized in that: The surface of the positioning plate (401) is slidably connected to a positioning ring (402), and a positioning shell (403) is engaged between the tops of the two positioning rings (402), with the bottom of the positioning shell (403) engaged with the positioning plate (401).

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