A flat head for horizontal stirred reactor

Abstract

The present application discloses a flat head for a horizontal stirred reactor, and relates to the technical field of the reactor, which includes a sealing plate, and the sealing plate includes a fixed outer ring, a connecting outer ring, a plate body and a connecting inner ring connected sequentially from the outside to the inside, and the thickness of the fixed outer ring, the connecting outer ring and the plate body increases sequentially, and the radial width of the plate body is 900-1200mm, and the thickness of the plate body is 75-100mm. The structure and size of the sealing plate of the present application are optimized, and the plate body thickness is large, ensuring that the plate body has sufficient strength as a pressure-bearing body, is not easy to deform, is suitable for large horizontal reactors, and can effectively reduce the situation of the flat head bulging outward; the fixed outer ring is used as the part of the flat head for connecting to the reactor barrel, which is not directly pressure-bearing, has a small thickness, is conducive to reducing costs, and is easy to install.

Description

Technical Field

[0001] The present application relates to the technical field of reactors, and in particular to a flat head for a horizontal stirred reactor. Background Art

[0002] Reactors are equipment that realize reaction processes and are widely used in chemical, oil refining, metallurgy and other fields. Horizontal stirred reactors are reactors placed horizontally and equipped with stirring functions. They are suitable for large-scale production with continuous operation. Their horizontal design allows materials to flow smoothly in the reactor, thereby reducing material retention and dead corners.

[0003] Flat head refers to the heads at both ends of horizontal stirred reactors. It is an important part of the reactor and plays a sealing role. Flat head has the characteristics of simple structure, easy installation and maintenance, convenient processing and welding.

[0004] However, for large reactors, the flat head has a large pressure-bearing area and is prone to fatigue when operating in a high-temperature and high-pressure environment for a long time, resulting in abnormal bulging, which affects the normal operation of the equipment. Summary of the invention

[0005] In order to reduce the outward bulging of the flat head, the present application provides a flat head for a horizontal stirred reactor.

[0006] The present application provides a flat head for a horizontal stirred reactor using the following technical solution:

[0007] A flat head for a horizontal stirred reactor comprises a sealing plate, wherein the sealing plate comprises a fixed outer ring, a connecting outer ring, a plate body and a connecting inner ring which are sequentially connected from the outside to the inside, wherein the thickness of the fixed outer ring, the connecting outer ring and the plate body increases sequentially, the radial width of the plate body is 900-1200 mm, and the thickness of the plate body is 75-100 mm.

[0008] By adopting the above technical scheme, the structure and size of the sealing plate are optimized, and the thickness of the plate body is relatively large, ensuring that the plate body as a pressure-bearing body has sufficient strength and is not easily deformed; the fixed outer ring is used as a flat head for connecting with the reactor cylinder, which does not directly bear pressure and has a relatively small thickness, which is conducive to reducing costs and facilitating installation; the connecting outer ring is used as a transition part between the fixed outer ring and the plate body, and the connecting inner ring is used as a flat head for connecting with the stirring shaft.

[0009] The flat head of the present application is suitable for large horizontal reactors and can effectively reduce the situation where the flat head bulges outward.

[0010] Optionally, the sealing plate is made of 42CrMo material.

[0011] By adopting the above technical solution, 42CrMo is a medium-carbon alloy structural steel with high strength, high toughness and good hardenability, and is widely used in machinery manufacturing, automobile industry, aerospace and other fields.

[0012] Optionally, a plurality of air inlet pipes are connected to the outside of the fixed outer ring, the ends of the air inlet pipes are connected to flanges, one of the flanges is connected to a flange cover, the sealing plate is provided with an air inlet channel connected to the air inlet pipe, and one side of the plate body is provided with an air outlet connected to the air inlet channel;

[0013] A feed pipe is connected to the outer side of the fixed outer ring, a feed channel connected to the feed pipe is provided on the sealing plate, and a discharge port connected to the feed channel is provided on one side of the plate body.

[0014] By adopting the above technical solution, the flat head integrates the air intake and feed functions to meet the production needs of different reactors. Compared with the air intake and feed components set on the surface of the reactor barrel, firstly, it is more convenient to operate and inspect; secondly, it has little impact on the structural integrity of the reactor and can better ensure the overall strength of the reactor; thirdly, the fluid distribution is optimized, which helps to improve the mixing efficiency and make the reaction process more uniform and efficient.

[0015] Optionally, it also includes a reinforcement device installed on the outer surface of the sealing plate;

[0016] The fixed outer ring is provided with a plurality of fixing holes at intervals, the reinforcement device comprises two fixing seats, both ends of the fixing seats are provided with fixing bolts inserted into the fixing holes, a reinforcement strip is connected between the two fixing seats, and the reinforcement strip is attached to the outer surface of the plate body.

[0017] By adopting the above technical solution, for the ultra-high pressure reactor, a reinforcement device can be installed to further ensure the structural strength of the flat head and meet the needs of different customers.

[0018] Optionally, two reinforcement strips are provided and are respectively located at both ends of the fixed seat, and both ends of the fixed seat are slidably connected with a rack, and the sliding direction of the rack is perpendicular to the length direction of the reinforcement strip. The rack is meshed with a driving gear, and a rotating shaft rotatably connected to the fixed seat is fixedly penetrated in the middle of the driving gear, and the rack is fixedly connected with a connecting block, and the connecting block is connected to the reinforcement strip.

[0019] By adopting the above technical solution, firstly, the position of the reinforcement strip can be adjusted to cover most areas of the sealing plate, and the reinforcement range is large, thereby ensuring the reinforcement effect; secondly, the reinforcement device can also play a role in detecting flatness, by driving the driving gear to rotate through the rotating shaft, thereby driving the rack to slide, so that the reinforcement strip moves in close contact with the outer surface of the sealing plate. If the reinforcement strip is difficult to slide, it means that the surface of the sealing plate is bulging and the flatness does not meet the standard.

[0020] Optionally, both ends of the fixed seat are provided with sliding grooves for the corresponding rack to slide, the sliding groove is set at an opening on one side close to the reinforcement strip, the bottom wall of the sliding groove is fixedly connected with a guide bar, the rack is provided with a guide groove for the guide bar to be inserted, the rotating shaft is located in the middle of the fixed seat, the driving gear is located in the corresponding sliding groove, and the two sliding grooves are staggered.

[0021] By adopting the above technical solution, the rack is well guided by sliding, and moves smoothly and within a large range of movement.

[0022] Optionally, a linkage assembly is provided between the two rotating shafts for driving the same reinforcement strip to slide;

[0023] The linkage assembly includes a connecting bar, and the two ends of the connecting bar are respectively rotatably connected to the first synchronous wheel and the second synchronous wheel, a synchronous belt is transmission-connected between the first synchronous wheel and the second synchronous wheel, the first synchronous wheel is connected to a crank, the second synchronous wheel is coaxially connected to a driving gear, the driving gear is meshed with a driven gear rotatably connected to the connecting bar, the first synchronous wheel and the driven gear are both coaxially connected to an insertion strip, and the rotating shaft is provided with a slot for inserting the insertion strip.

[0024] By adopting the above technical solution, the two rotating shafts can be driven to rotate together through the linkage component to facilitate the sliding of the reinforcement strip, without the need for two people to cooperate in the operation, thus saving manpower.

[0025] Optionally, the connecting block can slide to both sides of the fixing seat, and a connecting groove for inserting the end of the reinforcement strip is provided on the side of the connecting block away from the sealing plate, and a countersunk hole is provided at the end of the reinforcement strip, and a fastening bolt threadedly connected to the connecting block is passed through the countersunk hole.

[0026] By adopting the above technical solution, the reinforcement strip can be easily disassembled and assembled.

[0027] Optionally, the four fixing bolts are distributed at equal intervals around the axis of the sealing plate.

[0028] By adopting the above technical solution, the reinforcement device can be installed horizontally or vertically, and has a wide range of applications.

[0029] Optionally, a lifting lug is connected to the outer side of the sealing plate.

[0030] By adopting the above technical solution, it is convenient to hoist heavy flat heads.

[0031] In summary, this application has the following beneficial effects:

[0032] 1. The structure and size of the sealing plate of the present application are optimized, and the plate body is thicker, ensuring that the plate body as a pressure-bearing body has sufficient strength and is not prone to deformation, and is suitable for large horizontal reactors;

[0033] 2. The flat head integrates the air intake and feed functions to meet the production needs of different reactors. Compared with the air intake and feed components set on the surface of the reactor barrel, firstly, it is more convenient to operate and inspect; secondly, it has little impact on the structural integrity of the reactor and can better ensure the overall strength of the reactor; thirdly, the fluid distribution is optimized, which helps to improve the mixing efficiency and make the reaction process more uniform and efficient;

[0034] 3. For ultra-high pressure reactors, reinforcement devices can be installed to further ensure the structural strength of the flat head and facilitate quick inspection of flatness to meet the needs of different customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a front view schematic diagram of the flat head of the first embodiment of the present application;

[0036] Figure 2 is a side view schematic diagram of the flat head of the first embodiment of the present application;

[0037] Figure 3 is a cross-sectional schematic diagram of the flat head at the air inlet channel of the first embodiment of the present application;

[0038] Figure 4 It is a cross-sectional schematic diagram of the flat head at the feed channel of the first embodiment of the present application;

[0039] Figure 5 is a front view schematic diagram of the flat head of the second embodiment of the present application;

[0040] Figure 6 is a schematic structural diagram of a reinforcement device according to Embodiment 2 of the present application;

[0041] Figure 7 is a schematic structural diagram of the connection between the rack and the reinforcement strip in the second embodiment of the present application;

[0042] Figure 8 is a side view schematic diagram of a fixing seat and a rack in Embodiment 2 of the present application;

[0043] Fig. 9 It is a structural schematic diagram of the linkage assembly, the driving gear and the rotating shaft of the second embodiment of the present application;

[0044] Fig.10 It is a structural diagram of the linkage component of Example 2 of the present application.

[0045] Description of reference numerals: 1. Closing plate; 11. Fixing outer ring; 111. Fixing hole; 12. Connecting outer ring; 13. Plate body; 14. Connecting inner ring; 15. Lifting ear; 101. Air inlet channel; 102. Air outlet; 103. Feed channel; 104. Discharge port; 2. Air inlet pipe; 21. Flange; 3. Flange cover; 4. Feed pipe; 5. Reinforcement device; 51. Fixing seat; 511. Slide groove; 512. Guide strip; 5 2. Fixing bolt; 53. Reinforcement strip; 531. Countersunk hole; 54. Rack; 541. Guide groove; 55. Driving gear; 56. Rotating shaft; 561. Slot; 57. Connecting block; 571. Connecting groove; 58. Fastening bolt; 6. Linkage assembly; 61. Connecting strip; 62. First synchronous wheel; 63. Second synchronous wheel; 64. Synchronous belt; 65. Crank handle; 66. Driving gear; 67. Driven gear; 68. Insert strip. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-10 This application is described in further detail.

[0047] The embodiment of the present application discloses a flat head for a horizontal stirred reactor.

[0048] Embodiment 1:

[0049] Reference Figure 1 The flat head includes a sealing plate 1, an air inlet pipe 2 and a feed pipe 4. The sealing plate 1 includes a fixed outer ring 11, a connecting outer ring 12, a plate body 13 and a connecting inner ring 14 which are fixedly connected in sequence from the outside to the inside. The sealing plate 1 is made of 42CrMo material. The fixed outer ring 11 is provided with a plurality of fixing holes 111 at equal intervals along the circumference. The fixing holes 111 are used for fasteners to pass through so that the flat head can be fixedly installed on the side of the reactor cylinder. The connecting inner ring 14 is provided with a plurality of mounting holes at equal intervals along the circumference. The mounting holes are used for fasteners to pass through so that the stirring shaft can be fixedly installed in the middle of the flat head. Two lifting ears 15 are fixedly connected to the outside of the fixed outer ring 11 to facilitate the lifting of heavy flat heads.

[0050] Reference Figure 2 , Figure 3 The radial width of the plate body 13 is 900-1200mm, and the radial width refers to the difference between the outer diameter and the inner diameter of the plate body 13. The plate body 13 is suitable for large horizontal reactors as the pressure-bearing body on the side of the reactor. The thickness of the plate body 13 is 75-100mm, which ensures that the plate body 13 has sufficient strength as the pressure-bearing body and is not easily deformed, which can effectively reduce the situation where the flat head bulges outward. The thickness of the fixed outer ring 11, the connecting outer ring 12 and the plate body 13 increases successively, so that the thickness of the fixed outer ring 11 is relatively small, which is conducive to reducing costs and facilitating installation.

[0051] Reference Figure 1 , Figure 3 , four air inlet pipes 2 are provided and fixedly connected to the outside of the fixed outer ring 11, and a flange 21 is fixedly connected to the end of the air inlet pipe 2 for connecting to the air inlet pipe. One of the flanges 21 is fixedly connected to a flange cover 3, and three of the four air inlet pipes 2 are commonly used and one is a spare. The sealing plate 1 is provided with an air inlet channel 101 connected to the air inlet pipe 2, and the air inlet channel 101 extends from the fixed outer ring 11 to the plate body 13, and the inner surface of the plate body 13 is provided with an air outlet 102 connected to the air inlet channel 101. The air inlet function is integrated in the flat head, so that the gas source used for reaction or protection can enter the reactor through the flat head.

[0052] Reference Figure 1 , Figure 4 The feed pipe 4 is provided with a fixed connection to the outside of the fixed outer ring 11, the sealing plate 1 is provided with a feed channel 103 connected to the feed pipe 4, the feed channel 103 extends from the fixed outer ring 11 to the plate body 13, and the inner surface of the plate body 13 is provided with a discharge port 104 connected to the feed channel 103. The feed function is also integrated in the flat head, and the reaction materials can enter the reactor through the flat head.

[0053] Compared with the air inlet and feed components arranged on the surface of the reactor barrel, firstly, operation and inspection are more convenient; secondly, the structural integrity of the reactor is less affected, and the overall strength of the reactor can be better guaranteed; thirdly, the fluid distribution is optimized, which helps to improve the mixing efficiency, and the reaction process is more uniform and efficient.

[0054] Embodiment 2:

[0055] The difference from the first embodiment is that it also includes a reinforcement device 5 installed on the outer surface of the sealing plate 1, which can meet the use requirements of the ultra-high pressure reactor and the needs of regular and rapid flatness detection of the flat head surface.

[0056] Reference Figure 5 , Figure 6 The reinforcement device 5 includes two symmetrically arranged fixing seats 51, and fixing bolts 52 are movably penetrated at both ends of the fixing seats 51. The four fixing bolts 52 are evenly spaced around the axis of the sealing plate 1, so that the reinforcement device 5 can be installed horizontally or vertically, and has a wide range of applications.

[0057] When the reinforcing device 5 needs to be installed, the fasteners in the four corresponding fixing holes 111 are removed, and then the longer fixing bolts 52 are passed through the fixing holes 111 and screwed into the reactor cylinder, so that the reinforcing device 5 can be fixed.

[0058] Reference Figure 5 , Figure 6A reinforcing strip 53 is connected between the two fixing seats 51. Two reinforcing strips 53 are provided and are respectively located at the two ends of the fixing seats 51. The reinforcing strips 53 are attached to the outer surface of the plate body 13. On the one hand, by sliding the reinforcing strips 53 on the surface of the plate body 13, it is possible to detect whether the surface of the sealing plate 1 bulges outwards; on the other hand, moving the reinforcing strips 53 to a slightly bulging part can play a reinforcing role and prevent the bulging deformation from further expanding.

[0059] Reference Figure 6 , Figure 7 , racks 54 are slidably connected at both ends of the fixed seat 51, and slide grooves 511 are provided at both ends of the fixed seat 51 for the corresponding racks 54 to slide. The slide groove 511 is set near the opening on one side of the reinforcement strip 53, and the two slide grooves 511 are staggered. The sliding direction of the rack 54 is perpendicular to the length direction of the reinforcement strip 53. The rack 54 is meshed with a driving gear 55. A rotating shaft 56 that is rotatably connected to the fixed seat 51 is fixedly penetrated in the middle of the driving gear 55. The rack 54 is fixedly connected with a connecting block 57, and the connecting block 57 is connected to the reinforcement strip 53. By rotating the rotating shaft 56, the driving gear 55 is driven to rotate, which can drive the rack 54 to slide, and then drive the reinforcement strip 53 to slide on the surface of the plate body 13. The position of the reinforcement strip 53 can be adjusted to cover most areas of the sealing plate 1, and the reinforcement range is large, thereby ensuring the reinforcement effect.

[0060] Reference Figure 7 The connecting block 57 can extend out of the slide slot 511 to slide to both sides of the fixing seat 51. The side of the connecting block 57 away from the sealing plate 1 is provided with a connecting slot 571 for inserting the end of the reinforcing strip 53. The end of the reinforcing strip 53 is provided with a countersunk hole 531. The countersunk hole 531 is penetrated with a fastening bolt 58 threadedly connected to the connecting block 57. By fastening the bolt 58, the installation of the reinforcing strip 53 can be completed reliably and quickly.

[0061] Reference Figure 8 The inner bottom wall of the slide groove 511 is fixedly connected with a guide bar 512, the cross section of the guide bar 512 is dovetail-shaped, and the rack 54 is provided with a guide groove 541 for the guide bar 512 to be inserted. The rack 54 is well guided for sliding, and moves smoothly and has a large range of movement. The rotating shaft 56 is located in the middle of the fixed seat 51, and the driving gear 55 is located in the corresponding slide groove 511.

[0062] Reference Fig. 9 , Fig.10A linkage assembly 6 is provided between two rotating shafts 56 for driving the same reinforcement strip 53 to slide. The linkage assembly 6 includes a connecting strip 61, and the two ends of the connecting strip 61 are respectively rotatably connected to a first synchronous wheel 62 and a second synchronous wheel 63, and a synchronous belt 64 is transmission-connected between the first synchronous wheel 62 and the second synchronous wheel 63, and the first synchronous wheel 62 is fixedly connected to a crank 65, and the crank 65 is rotatably provided through the connecting strip 61. The second synchronous wheel 63 is coaxially fixedly connected to a driving gear 66, and the driving gear 66 is meshed with a driven gear 67 rotatably connected to the connecting strip 61, and the first synchronous wheel 62 and the driven gear 67 are both coaxially fixedly connected to an insertion strip 68, and the rotating shaft 56 is provided with a slot 561 for inserting the insertion strip 68.

[0063] When the position of the reinforcement strip 53 needs to be adjusted, the two insertion strips 68 are inserted into the corresponding slots 561, and then the crank 65 is turned to drive the first synchronous wheel 62 and the second synchronous wheel 63 to rotate. The second synchronous wheel 63 drives the driven gear 67 to rotate through the driving gear 66, and then drives the two rotating shafts 56 to rotate in opposite directions, so that the corresponding two racks 54 slide in the same direction, completing the sliding drive action of the reinforcement strip 53.

[0064] The linkage assembly 6 can drive the reinforcement strip 53 to slide, without the need for two people to cooperate in the operation, thus saving manpower. When the linkage assembly 6 is not needed, it can be directly unplugged and stored, without affecting the maintenance and operation of the staff. It should be noted that there is a gap between the reinforcement device 5 and the sealing plate 1, which will not interfere with the fasteners installed at the connection inner ring 14 and will not affect the movement of the stirring shaft.

[0065] The implementation principle of the second embodiment of the present application is:

[0066] When it is necessary to check the flatness, first install the linkage assembly 6 so that the insertion strip 68 is inserted into the slot 561, and then shake the handle 65 to drive the two rotating shafts 56 to rotate in opposite directions, so that the reinforcement strip 53 slides along the surface of the sealing plate 1. Based on the sliding resistance, it can be preliminarily determined whether the surface of the sealing plate 1 is flat. If the reinforcement strip 53 is difficult to slide, it means that the surface of the sealing plate 1 is bulging and the flatness does not meet the standard.

[0067] If the surface of the sealing plate 1 bulges outward, the reinforcing strip 53 can be driven to move to the bulging part of the surface to reinforce it. Relying on the interaction force between the reinforcing strip 53 and the bulging part, the reinforcing strip 53 can be fixed and not easy to slide.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flat head for a horizontal stirred reactor, comprising a sealing plate (1), characterized in that: The sealing plate (1) comprises a fixed outer ring (11), a connecting outer ring (12), a plate body (13) and a connecting inner ring (14) which are sequentially connected from the outside to the inside, the thickness of the fixed outer ring (11), the connecting outer ring (12) and the plate body (13) increases sequentially, the radial width of the plate body (13) is 900-1200 mm, and the thickness of the plate body (13) is 75-100 mm; It also includes a reinforcing device (5) installed on the outer surface of the sealing plate (1); The fixed outer ring (11) is provided with a plurality of fixing holes (111) at intervals, the reinforcement device (5) comprises two fixing seats (51), both ends of the fixing seats (51) are provided with fixing bolts (52) inserted into the fixing holes (111), a reinforcement strip (53) is connected between the two fixing seats (51), and the reinforcement strip (53) is attached to the outer surface of the plate body (13); Two reinforcement bars (53) are provided and are respectively located at two ends of the fixing seat (51); both ends of the fixing seat (51) are slidably connected with racks (54); the sliding direction of the racks (54) is perpendicular to the length direction of the reinforcement bar (53); the racks (54) are meshed with a driving gear (55); a rotating shaft (56) rotatably connected to the fixing seat (51) is fixedly penetrated in the middle of the driving gear (55); the racks (54) are fixedly connected with a connecting block (57); and the connecting block (57) is connected to the reinforcement bar (53); A linkage assembly (6) is provided between the two rotating shafts (56) for driving the same reinforcement strip (53) to slide; The linkage assembly (6) comprises a connecting bar (61), the two ends of the connecting bar (61) are respectively rotatably connected to a first synchronous wheel (62) and a second synchronous wheel (63), a synchronous belt (64) is transmission-connected between the first synchronous wheel (62) and the second synchronous wheel (63), the first synchronous wheel (62) is connected to a crank (65), the second synchronous wheel (63) is coaxially connected to a driving gear (66), the driving gear (66) is meshed with a driven gear (67) rotatably connected to the connecting bar (61), the first synchronous wheel (62) and the driven gear (67) are both coaxially connected to an insertion strip (68), and the rotating shaft (56) is provided with a slot (561) for inserting the insertion strip (68).

2. The flat head for a horizontal stirred reactor according to claim 1, characterized in that: The sealing plate (1) is made of 42CrMo material.

3. The flat head for a horizontal stirred reactor according to claim 1, characterized in that: The outer side of the fixed outer ring (11) is connected to a plurality of air intake pipes (2), the ends of the air intake pipes (2) are connected to flanges (21), one of the flanges (21) is connected to a flange cover (3), the sealing plate (1) is provided with an air intake channel (101) connected to the air intake pipes (2), and one side of the plate body (13) is provided with an air outlet (102) connected to the air intake channel (101); The outer side of the fixed outer ring (11) is connected to a feed pipe (4), the sealing plate (1) is provided with a feed channel (103) connected to the feed pipe (4), and one side of the plate body (13) is provided with a discharge port (104) connected to the feed channel (103).

4. The flat head for a horizontal stirred reactor according to claim 1, characterized in that: Both ends of the fixed seat (51) are provided with a slide groove (511) for the corresponding rack (54) to slide, the slide groove (511) is provided with an opening on one side close to the reinforcement strip (53), the inner bottom wall of the slide groove (511) is fixedly connected with a guide strip (512), the rack (54) is provided with a guide groove (541) for the guide strip (512) to be inserted, the rotating shaft (56) is located in the middle of the fixed seat (51), the driving gear (55) is located in the corresponding slide groove (511), and the two slide grooves (511) are staggered.

5. The flat head for a horizontal stirred reactor according to claim 1, characterized in that: The connecting block (57) is capable of sliding to both sides of the fixing seat (51); a connecting groove (571) for inserting the end of the reinforcing strip (53) is provided on the side of the connecting block (57) facing away from the sealing plate (1); a countersunk hole (531) is provided at the end of the reinforcing strip (53); and a fastening bolt (58) threadedly connected to the connecting block (57) is passed through the countersunk hole (531).

6. The flat head for a horizontal stirred reactor according to claim 1, characterized in that: The four fixing bolts (52) are distributed at equal intervals around the axis of the sealing plate (1).

7. The flat head for a horizontal stirred reactor according to claim 1, characterized in that: The outer side of the sealing plate (1) is connected with a lifting lug (15).

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