Fast-assembly fluidized bed device and production method thereof
By dividing the heat exchange tube and corrugated baffle into module structures, pre-assembled in the manufacturing plant and assembled on site, the transportation and assembly efficiency of large-scale fluidized bed devices is solved, and an efficient and precise assembly process is achieved.
Patent Information
- Application Number
- CN202411605450.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-01-14
AI Technical Summary
The increase in diameter of large fluidized bed devices makes it impossible to assemble and transport in the manufacturing plant, resulting in huge on-site assembly workload and reduces work efficiency.
Design a quick-load fluidized bed device, divide the heat exchange pipe and corrugated baffle into module structures, pre-assembled in the manufacturing plant, and then transported to the site for assembly, use guide standpipes and guide plates to ensure installation accuracy, and Set up inclined thin plates at the gaps of the module to prevent airflow from short circuit.
It reduces transportation difficulty and on-site assembly time, improves installation efficiency and accuracy, and reduces equipment manufacturing costs.
Smart Images
Figure CN119303509A_ABST
Abstract
Description
[Technical field]
[0001] The invention relates to the field of fluidized bed devices, and in particular to a quick-install fluidized bed device and a production method thereof. [Background technology]
[0002] Fluidized bed, abbreviated as fluidized bed, is a reactor that uses gas or liquid to pass through a granular solid layer to put solid particles in a suspended motion state and carry out a gas-solid phase reaction process or a liquid-solid phase reaction process.
[0003] For example, the diameter of the fluidized bed below 30,000 tons is about 3m, and the diameter can reach 5m with the transportation of accessories, so it can be transported by road. Therefore, during manufacturing, we can manufacture the entire fluidized bed device in the factory and then transport it to the customer's site. However, with the development of technology, the fluidized bed device is getting larger and larger. The diameter of some fluidized bed devices has reached 5∽7m, and the diameter can reach 10∽12m with the transportation of accessories. Therefore, due to its large diameter, the entire fluidized bed device cannot be assembled as a whole in the manufacturing plant and then transported to the customer's site by road. In order to solve this technical problem, the industry generally does this in the prior art. First, the internal parts of the fluidized bed are made in the manufacturing plant, and then workers are sent to the customer's site to assemble them, which leads to a huge workload of on-site assembly at the customer's site. Taking a fluidized bed device with a diameter of 5m and a transportation diameter of 10m for accessories as an example, it takes about 30 workers to install it on the customer's site for 180 days. If there is a lot of rain, it will be postponed. Therefore, the equipment manufacturing cost is significantly increased and the work efficiency is reduced. Therefore, we thought about how to make the heat exchange tubes and corrugated baffles into a module structure in the manufacturing plant, and then transport the module structure to the site for workers to assemble several module structures. This not only solves the transportation problem, but also greatly improves the assembly efficiency of workers at the customer's site. The present invention aims to provide such a quick-assembly fluidized bed device and its production method. [Summary of the invention]
[0004] In order to solve the above problems, the object of the present invention is to provide a quick-install fluidized bed device and a production method thereof which can improve working efficiency.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a quick-install fluidized bed device, comprising: a shell, a gas pre-distributor and a feed port are provided at the bottom of the shell, a discharge port is provided at the top of the shell, a gas distribution plate is provided in the shell, a guide vertical pipe and a plurality of groups of heat exchange tubes and corrugated baffle modules arranged along the circumferential direction are provided above the gas distribution plate in the shell, the guide vertical pipe is connected to the inner wall of the shell through a connecting piece, a plurality of vertical grooves are provided at the bottom of the guide vertical pipe, and each group of heat exchange tubes and a corrugated baffle module are connected to each other. The corrugated baffle module includes several layers of corrugated baffle layers and several heat exchange tubes, and the several heat exchange tubes are respectively inserted into the several layers of corrugated baffle layers. Each layer of corrugated baffle layer includes a corrugated baffle and a side strip arranged on the edge of the corrugated baffle. A guide plate is provided at the inner side strip of the corrugated baffle located at the bottom, and the guide plate cooperates with the vertical groove at the bottom of the guide vertical tube. A support plate welded to the inner wall of the shell is provided above the heat exchange tube and the corrugated baffle module in the shell, and the top of the heat exchange tube is connected to the support plate through a connecting rod and a nut.
[0006] Preferably, a quick-install fluidized bed device in the present invention is further configured as follows: a group of spacing adjustment mechanisms are arranged between every two adjacent corrugated baffle layers, and each group of spacing adjustment mechanisms includes: an adjusting screw, a fixing nut and an adjusting nut, the adjusting screw is provided with a supporting step portion, the adjusting screw passes through two upper and lower adjacent corrugated baffle layers respectively, the fixing nut is arranged at the upper free end of the adjusting screw, the adjusting nut is arranged at the lower free end of the adjusting screw, the lower corrugated baffle layer of the two upper and lower adjacent corrugated baffle layers is supported on the adjusting nut, and the upper corrugated baffle layer is supported on the supporting step portion of the adjusting screw.
[0007] Preferably, a quick-install fluidized bed device in the present invention is further configured as follows: an intermediate reinforcing rib plate is provided at a position corresponding to the vertical groove in the guide vertical pipe.
[0008] Preferably, a quick-install fluidized bed device in the present invention is further configured as follows: a gap is provided between every two adjacent heat exchange tubes and the corrugated baffle modules, and an inclined thin plate welded to the side strips of the corrugated baffle is provided in the gap.
[0009] Preferably, the quick-install fluidized bed device in the present invention is further configured as follows: a cone is provided below the side strip.
[0010] Preferably, the quick-install fluidized bed device in the present invention is further configured as follows: the taper of the cone is 60°.
[0011] Preferably, a quick-install fluidized bed device in the present invention is further configured as follows: the corrugated baffle is formed by spot welding a plurality of corrugated strips arranged in opposite oblique directions.
[0012] Preferably, a quick-install fluidized bed device in the present invention is further configured as follows: the corrugated baffle is arranged in a quarter circle.
[0013] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a production method of a quick-install fluidized bed device, comprising the following steps: A. First, the shell is divided into several sections in the manufacturing plant, and the short section is welded in advance on the section where the heat exchange tube needs to be inserted; B. Then, several heat exchange tubes and corrugated baffle modules are manufactured in the manufacturing plant, and after the heat exchange tubes and corrugated baffle modules are manufactured, a suspension rod assembly is installed on each heat exchange tube and corrugated baffle module; C. Then, the shell divided into several sections and the heat exchange tubes and corrugated baffle modules with the suspension rod assembly installed are transported to the client site together; D. Then, the assembly worker first welds the shell at the client site, and then installs the guide vertical pipe on the shell through the connector In the body, the heat exchange tube and the corrugated baffle module are then hoisted into the shell for installation by means of hoisting equipment. During installation, the guide plate at the inner side strip of the lowest corrugated baffle is inserted into the vertical groove at the bottom of the guide vertical tube, thereby ensuring the installation accuracy of the heat exchange tube and the corrugated baffle module. Finally, the top of the heat exchange tube is connected to the top support plate through a connecting rod and a nut, and the adjusting screw of the spacing adjustment mechanism at the top is installed on the fixing seat on the inner wall of the shell; E. After the installation of the heat exchange tube and the corrugated baffle module and the shell is completed, the hoisting rod assembly installed on the heat exchange tube and the corrugated baffle module is removed and taken out of the equipment through the manhole; F. Finally, the free end of the heat exchange tube is welded to the short section welded in advance on the shell.
[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention makes the heat exchange tubes and corrugated baffles, which are relatively complicated in process and installation, into a module structure in advance in the manufacturing plant, and then transports the module structure to the client site for installation, which greatly reduces the difficulty of transportation. Moreover, compared with the prior art of transporting each internal component to the site for installation, the present invention only needs to install several modules on site, which not only greatly improves the installation efficiency, but also ensures the installation accuracy of the assembly workers when assembling the modules on site by adding guide vertical pipes in the equipment and setting guide plates on the inner side strips of the corrugated baffles. In addition, considering that there is a gap between the modules after the modules are assembled, which will cause airflow short-circuiting, we also set an inclined thin plate at the gap.
Brief Description of the Drawings
[0015] Figure 1 The schematic diagram of the structure of the quick-loading fluidized bed device in the present invention is
[0016] Figure 2 It is a schematic diagram of the arrangement structure of the corrugated baffles when a plurality of groups of heat exchange tubes and the corrugated baffle modules are assembled together in the present invention.
[0017] Figure 3It is a schematic diagram of the structure in which the guide plate on the corrugated baffle plate cooperates with the guide vertical pipe in the present invention.
[0018] Figure 4 It is a schematic diagram of the structure in which an inclined thin plate is arranged at the gap between adjacent modules in the present invention.
[0019] Figure 5 It is a schematic diagram of the structure of a single heat exchange tube and a corrugated baffle module in the present invention, which discloses the situation after the hanger assembly is installed.
[0020] Figure 6 It is a structural schematic diagram of the center distance adjustment mechanism in the present invention.
[0021] Figure 7 It is a schematic diagram of the structure of the corrugated baffle in the present invention.
[0022] Figure 8 It is a schematic diagram of the structure of a single piece of corrugated strip board in the present invention.
[0023] Fig. 9 It is a partial enlarged view of the corrugated baffle in the present invention.
[0024] Fig.10 It is a structural schematic diagram of the short section and the heat exchange tube being welded together.
[0025] Figures 1 to 10 Middle: 1. Shell, 10. Gas pre-distributor, 11. Feed inlet, 12. Discharge outlet, 13. Gas distribution plate, 14. Fixed seat, 15. Manhole, 2. Guide vertical pipe, 20. Vertical groove, 21. Middle reinforcing rib plate, 3. Heat exchange tube and corrugated baffle module, 30. Corrugated baffle layer, 300. Corrugated baffle, 3000. Corrugated strip plate single piece, 301. Side strip, 302. Cone, 303. Inner side strip, 304. Guide plate , 31. heat exchange tube, 310. short section, 4. connector, 5. support plate, 50. connecting rod, 51. nut, 6. spacing adjustment mechanism, 60. adjusting screw, 600. supporting step portion, 61. fixing nut, 62. adjusting nut, 7. gap, 8. inclined thin plate, 9. hanger assembly, 90. hanger, 91. bottom support frame, 92. top positioning frame, 93. hanger nut, 94. first sleeve, 95. second sleeve. [Specific implementation method]
[0026] The following is a further detailed description of a quick-loading fluidized bed device and a production method thereof according to the present invention through specific embodiments.
[0027] Ginseng Figures 1 to 9As shown, a quick-install fluidized bed device comprises: a shell 1, a gas pre-distributor 10 and a feed port 11 are provided at the bottom of the shell 1, a discharge port 12 is provided at the top of the shell 1, a gas distribution plate 13 is provided in the shell 1, and a guide vertical pipe 2 and a plurality of groups of heat exchange tubes and corrugated baffle modules 3 arranged along the circumferential direction are provided above the gas distribution plate 13 in the shell 1. In the present embodiment, the number 3 of the heat exchange tubes and corrugated baffle modules is four. Of course, in other embodiments, the number of the heat exchange tubes and corrugated baffle modules 3 can also be three, five or even more groups, which can be determined according to specific production needs.
[0028] The guide vertical tube 2 is connected to the inner wall of the shell 1 through a connector 4. Four vertical grooves 20 are arranged evenly in the circumferential direction at the bottom of the guide vertical tube 2. An intermediate reinforcing rib 21 is arranged in the guide vertical tube 2 corresponding to the vertical grooves 20, thereby improving the structural strength of the guide vertical tube 2. Each group of heat exchange tubes and corrugated baffle modules 3 includes a plurality of corrugated baffle layers 30 and a plurality of heat exchange tubes 31. The plurality of heat exchange tubes 31 are respectively arranged in the plurality of corrugated baffle layers 30. Each corrugated baffle layer 30 includes a corrugated baffle 300 and a side strip 301 arranged around the edge of the corrugated baffle 300. A cone 302 is arranged below the side strip 301. The main function of the cone 302 is to reduce the gap between the corrugated baffle 300 and the inner wall of the shell 1. In this embodiment, the taper of the cone 302 is 60°, and the corrugated baffle 300 is arranged in a quarter circle. The corrugated baffle 300 is formed by spot welding a plurality of corrugated strip plates 3000 arranged in opposite oblique directions, thereby increasing the circulation time of the gas. A guide plate 304 is provided at the inner side strip 303 of the bottommost corrugated baffle 300, and the guide plate 304 cooperates with the vertical groove 20 at the bottom of the guide vertical pipe 2. A support plate 5 welded to the inner wall of the shell 1 is provided above the heat exchange tube and the corrugated baffle module 3 in the shell 1, and the top of the heat exchange tube 31 is connected to the support plate 5 through a connecting rod 50 and a nut 51. A set of spacing adjustment mechanisms 6 is arranged between every two adjacent corrugated baffle layers 30, and each set of spacing adjustment mechanisms 6 includes: an adjusting screw 60, a fixing nut 61 and an adjusting nut 62. The adjusting screw 60 is provided with a supporting step portion 600, and the adjusting screw 60 passes through the two upper and lower adjacent corrugated baffle layers 30 respectively. The fixing nut 61 is arranged at the upper free end of the adjusting screw 60, and the adjusting nut 62 is arranged at the lower free end of the adjusting screw 60. The lower corrugated baffle layer of the upper and lower adjacent corrugated baffle layers is supported on the adjusting nut 62, and the upper corrugated baffle layer is supported on the supporting step portion 600 of the adjusting screw 60. The spacing between every two adjacent corrugated baffle layers can be adjusted by screwing the adjusting nut 62. When four heat exchange tubes and the corrugated baffle module 3 are assembled together, a gap 7 is provided between every two adjacent modules. An inclined thin plate 8 welded to the side strip 301 of the corrugated baffle 300 is provided in the gap 7, thereby preventing airflow short circuit.
[0029] A production method of a quick-install fluidized bed device: comprising the following steps: A. firstly, dividing the shell 1 into several sections in the manufacturing plant, and welding the short section 310 in advance on the section where the heat exchange tube 31 needs to be inserted; B. then, manufacturing several heat exchange tubes and corrugated baffle modules 3 in the manufacturing plant, and after the heat exchange tubes and corrugated baffle modules 3 are manufactured, installing a suspension rod assembly 9 on each heat exchange tube and corrugated baffle module 3. In this embodiment, the suspension rod assembly 9 comprises: several suspension rods 90, a bottom support frame 91 and a top positioning frame 92. Several suspension rods 90 are respectively inserted into several layers of corrugated baffle layers 30, and the bottoms of several suspension rods 90 are provided with suspension rod nuts 93. The bottom support frame 91 is sleeved on several suspension rods 90. The bottom support frame 91 is located at the bottom position and above the hanger nut 93. The bottom support frame 91 is assembled by a plurality of first grid bars (not shown) through a first fixing member. The bottom support frame 91 is welded with a first sleeve 94 at a position corresponding to the hanger 90. The first sleeve 94 is sleeved on the bottom of the hanger 90. The bottom support frame 91 is supported on the bottom of a plurality of heat exchange tubes 31. The top positioning frame 92 is welded at the top position of a plurality of hangers 90 and positions the tops of a plurality of heat exchange tubes 31. The top positioning frame 92 is assembled by a plurality of second grid bars (not shown) through a second fixing member. The top positioning frame 92 is welded with a second sleeve 95 at a position corresponding to the hanger 90. The second sleeve sleeve 95 It is arranged on the top of the suspension rod 90 and welded to the suspension rod 90; C. Then the shell 1 divided into several sections and the heat exchange tube and corrugated baffle module 3 installed with the suspension rod assembly 9 are transported to the client site together; D. Then the assembly worker first welds the shell 1 at the client site, and then installs the guide vertical pipe 2 in the shell 1 through the connecting piece 4, and then uses the lifting equipment to lift the heat exchange tube and the corrugated baffle module 3 into the shell 1 for installation. During installation, the guide plate 304 at the inner side strip 303 of the lowest corrugated baffle 300 is inserted into the vertical groove 20 at the bottom of the guide vertical pipe 2, thereby ensuring the installation accuracy of the heat exchange tube and the corrugated baffle module 3, and finally the top of the heat exchange tube 31 is connected to the top support plate 5 through the connecting rod 50 and the nut 51, and The adjusting screw 60 of the spacing adjustment mechanism 6 located at the top is installed on the fixing seat 14 of the inner wall of the shell 1; E. After the installation of the heat exchange tube and corrugated baffle module 3 and the shell 1 is completed, the suspension rod assembly 9 installed on the heat exchange tube and corrugated baffle module 3 is removed and taken out of the equipment through the manhole 15; F. Finally, the free end of the heat exchange tube 31 is welded to the short section 310 welded in advance on the shell 1. The reason for welding the short section 310 to the shell 1 in advance is that when arriving at the client site, the workers only need to weld the short section 310 to the free end of the heat exchange tube 31. This operation can be performed inside the shell 1, and the welding operation space is also larger. In the prior art, the heat exchange tube needs to be inserted into the shell and welded, which is time-consuming and labor-intensive. Please refer to Fig.10 , Fig.10 The schematic diagram of the structure of welding the short section to the heat exchange tube is revealed.
[0030] In summary, the present invention makes the heat exchange tubes and corrugated baffles, which are relatively complicated in process and installation, into a module structure in advance in the manufacturing plant, and then transports the module structure to the client site for installation, which greatly reduces the difficulty of transportation. Moreover, compared with the prior art of transporting each internal component to the site for installation, the present invention only needs to install several modules on site, which not only greatly improves the installation efficiency, but also ensures the installation accuracy of the assembly workers when assembling the modules on site by adding guide vertical pipes in the equipment and setting guide plates on the inner side strips of the corrugated baffles. In addition, considering that there is a gap between the modules after the modules are assembled, which will cause airflow short-circuiting, we also set an inclined thin plate at the gap.
[0031] The above-mentioned embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.
Claims
1. A quick-loading fluidized bed device, comprising: A shell, a gas pre-distributor and a feed port are provided at the bottom of the shell, a discharge port is provided at the top of the shell, and a gas distribution plate is provided in the shell, characterized in that: a guide vertical pipe and a plurality of groups of heat exchange tubes and corrugated baffle modules arranged along the circumferential direction are provided in the shell above the gas distribution plate, the guide vertical pipe is connected to the inner wall of the shell through a connecting piece, a plurality of vertical grooves are provided at the bottom of the guide vertical pipe, each group of heat exchange tubes and corrugated baffle modules includes a plurality of layers of corrugated baffle layers and a plurality of heat exchange tubes, the plurality of heat exchange tubes are respectively penetrated in the plurality of layers of corrugated baffle layers, each layer of corrugated baffle layer includes a corrugated baffle and a side strip arranged on the edge of the corrugated baffle, a guide plate is provided at the inner side strip of the corrugated baffle located at the bottom, the guide plate cooperates with the vertical groove at the bottom of the guide vertical pipe, a support plate welded to the inner wall of the shell is provided above the heat exchange tube and the corrugated baffle module in the shell, and the top of the heat exchange tube is connected to the support plate through a connecting rod and a nut.
2. A fast-loading fluidized bed device according to claim 1, characterized in that: A set of spacing adjustment mechanisms is arranged between every two adjacent corrugated baffle layers, and each set of spacing adjustment mechanisms includes: an adjusting screw, a fixing nut and an adjusting nut, the adjusting screw is provided with a supporting step portion, the adjusting screw passes through two upper and lower adjacent corrugated baffle layers respectively, the fixing nut is arranged at the upper free end of the adjusting screw, and the adjusting nut is arranged at the lower free end of the adjusting screw, the lower corrugated baffle layer of the two upper and lower adjacent corrugated baffle layers is supported on the adjusting nut, and the upper corrugated baffle layer is supported on the supporting step portion of the adjusting screw.
3. The fast-loading fluidized bed device according to claim 1, characterized in that: An intermediate reinforcing rib plate is provided in the guide vertical pipe at a position corresponding to the vertical groove.
4. The fast-loading fluidized bed device according to claim 1, characterized in that: A gap is arranged between every two adjacent heat exchange tubes and the corrugated baffle module, and an inclined thin plate welded to the side strips of the corrugated baffle is arranged in the gap.
5. The fast-loading fluidized bed device according to claim 1, characterized in that: A cone is arranged below the edge strip.
6. A fast-loading fluidized bed device as claimed in claim 5, characterized in that: The cone has a taper of 60°.
7. The fast-loading fluidized bed device according to claim 1, characterized in that: The corrugated baffle is formed by spot welding a plurality of corrugated strips arranged in opposite oblique directions and staggered.
8. The fast-loading fluidized bed device according to claim 1, characterized in that: The corrugated baffle is arranged in a quarter circle.
9. The method for producing a fast-loading fluidized bed device according to any one of claims 1 to 8, characterized in that: The steps include: A. First, the shell is divided into several sections in the manufacturing plant, and the short section is welded in advance on the section where the heat exchange tube needs to be passed; B. Then, a number of heat exchange tubes and corrugated baffle modules are manufactured in the manufacturing plant. After the heat exchange tubes and corrugated baffle modules are manufactured, a hanger assembly is installed on each heat exchange tube and corrugated baffle module; C. Then transport the shell divided into several sections, the heat exchange tubes with the hanger assembly installed, and the corrugated baffle module to the client site; D. Then, the assembly workers weld the shell at the client site, and then install the guide vertical pipe in the shell through the connector. Then, the heat exchange tube and the corrugated baffle module are hoisted into the shell for installation through the hoisting equipment. During installation, the guide plate at the inner side strip of the lowest corrugated baffle is inserted into the vertical groove at the bottom of the guide vertical pipe, thereby ensuring the installation accuracy of the heat exchange tube and the corrugated baffle module. Finally, the top of the heat exchange tube is connected to the top support plate through the connecting rod and nut, and the adjusting screw of the spacing adjustment mechanism at the top is installed on the fixing seat on the inner wall of the shell. E. After the installation of the heat exchange tubes, corrugated baffle modules and shell is completed, remove the hanger assembly installed on the heat exchange tubes and corrugated baffle modules and take it out of the equipment through the manhole. F. Finally, weld the free end of the heat exchange tube to the short section welded in advance on the shell.