Preheating device for reaction vessel

Abstract

The present invention relates to a preheating device for a reaction container, comprising: a box body, a first opening and closing mechanism, a second opening and closing mechanism and a heater, the box body comprising a first upper side plate, a second upper side plate, a punching plate, a first lower side plate, a second lower side plate, a first upper connecting plate and a second upper connecting plate, the first opening and closing mechanism and the second opening and closing mechanism have the same structure and both comprise: a support assembly, an opening and closing plate assembly, a handle assembly and a lock assembly, the opening and closing plate assembly of the first opening and closing mechanism is arranged between the first upper connecting plate and the first lower side plate, the opening and closing plate assembly of the second opening and closing mechanism is arranged between the second upper connecting plate and the second lower side plate, the bottom of the first lower side plate is provided with a first bending support portion, the bottom of the second lower side plate is provided with a second bending support portion, the heater is supported on the first bending support portion and the second bending support portion, thereby solving the technical problem in the prior art that the catalytic process temperature requirement cannot be met when the equipment is just started up.

Description

Technical field

[0001] The present invention relates to the field of reaction containers, and in particular to a preheating device for a reaction container. [Background Technology]

[0002] A reaction vessel is a container used to complete physical and chemical reactions of a medium. In industrial production, especially in the chemical, pharmaceutical, fertilizer, and refining industries, reaction vessels are widely used as a pressure-bearing equipment due to process needs.

[0003] See also Figure 1 It discloses a reaction vessel in the prior art, comprising a cylinder 1' and an internal part 2' arranged in the cylinder 1', wherein the tube-side medium enters from the upper tube-side medium inlet 3', then reacts with the catalyst below after heat exchange through the heat exchange tube, and finally exits through the tube-side medium outlet 4' below the reaction vessel, and the shell-side medium enters from the shell-side medium inlet 5' on one side of the reaction vessel, and then exits from the shell-side medium outlet 6' on the other side of the reaction vessel. The defect of this reaction vessel is that the catalytic reaction requires the equipment to reach a certain process temperature, and the catalyst will also generate heat during normal reaction. Therefore, when this type of reactor is working normally, the catalyst will generate heat, so the equipment temperature meets the process requirements. However, when the equipment is just started, because the catalyst has not yet reacted to generate heat, the temperature inside the equipment cannot meet the catalytic process temperature requirements, resulting in the tube-side medium and the catalyst being unable to react when the equipment is just started.

[0004] Therefore, it is necessary to set a preheating device below the lower tube plate in the reaction vessel to solve this problem. In this way, when the equipment is just started, the tube-side medium coming out of the lower tube plate is heated by the preheating device before reacting with the catalyst below. The present invention aims to provide such a preheating device. [Summary of the invention]

[0005] In order to solve the above problems, the object of the present invention is to provide a preheating device for a reaction vessel with a simple structure and easy installation.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a preheating device for a reaction container, comprising: a box body, a first opening and closing mechanism, a second opening and closing mechanism and a heater, the box body comprising a first upper side plate, a second upper side plate, a punching plate, a first lower side plate, a second lower side plate, a first upper connecting plate and a second upper connecting plate, the first upper side plate, the second upper side plate and the punching plate are respectively welded to the cylinder body of the reaction container, the first upper connecting plate is welded to the first upper side plate, the second upper connecting plate is welded to the second upper side plate, the first lower side plate and the second lower side plate are respectively welded to the punching plate, the first opening and closing mechanism and the second opening and closing mechanism have the same structure, both comprising: a support assembly, an opening and closing plate assembly, a handle The assembly and the locking assembly, the support assembly is welded to the reaction vessel cylinder, the opening and closing plate assembly of the first opening and closing mechanism is arranged between the first upper connecting plate and the first lower side plate, the top of the first lower side plate is provided with a plurality of first spring pieces that are snapped with the opening and closing plate assembly of the first opening and closing mechanism, the opening and closing plate assembly of the second opening and closing mechanism is arranged between the second upper connecting plate and the second lower side plate, the top of the second lower side plate is provided with a plurality of second spring pieces that are snapped with the opening and closing plate assembly of the second opening and closing mechanism, the bottom of the first lower side plate is provided with a first bending support portion, the bottom of the second lower side plate is provided with a second bending support portion, and the heater is supported on the first bending support portion and the second bending support portion.

[0007] Preferably, a preheating device for a reaction container in the present invention is further configured as follows: the box body also includes a first lower connecting plate and a second lower connecting plate, the first lower connecting plate is welded to the first upper connecting plate and the first lower side plate respectively, and the second lower connecting plate is welded to the second upper connecting plate and the second lower side plate respectively.

[0008] Preferably, the preheating device for a reaction container in the present invention is further configured such that the opening and closing plate assembly of the first opening and closing mechanism and the opening and closing plate assembly of the second opening and closing mechanism are arranged at an angle of 110°.

[0009] Preferably, a preheating device for a reaction container in the present invention is further configured as follows: the first bending support portion and the second bending support portion are connected by a plurality of bottom ribs, and the bottom ribs are respectively welded to the first bending support portion and the second bending support portion.

[0010] Preferably, a preheating device for a reaction container in the present invention is further configured as follows: a first bending groove is provided on the top of the first lower side plate, and a plurality of first spring sheets are welded in the first bending groove at even intervals along the longitudinal direction of the first bending groove.

[0011] Preferably, a preheating device for a reaction container in the present invention is further configured as follows: a second bending groove is provided on the top of the second lower side plate, and a plurality of second spring sheets are welded in the second bending groove at even intervals along the longitudinal direction of the second bending groove.

[0012] Preferably, the preheating device for a reaction vessel in the present invention is further configured as follows: the support assembly includes a first shaft seat and a second shaft seat, and the first shaft seat and the second shaft seat are respectively welded to the cylinder of the reaction vessel.

[0013] Preferably, a preheating device for a reaction container in the present invention is further configured as follows: the opening and closing plate assembly includes: a rotating shaft, a plurality of joints, a plurality of ribs, a plurality of connecting plates and a plurality of angle steel pieces, a plurality of joints are arranged on the rotating shaft in an interval shape, the joints and the rotating shaft are connected by a first fixing piece, a rib plate is welded on each joint, the connecting plates are arranged on both sides of the rib plate and are respectively welded to the rib plate and the rotating shaft, the angle steel pieces are respectively welded to the rib plate and the connecting plates, one end of the rotating shaft is supported on the first shaft seat, and the other end of the rotating shaft is supported on the second shaft seat, a shaft sleeve is provided on the rotating shaft, the shaft sleeve is welded to the rotating shaft, one end of the first shaft seat is provided with a limiting groove matching the shaft sleeve, the other end of the first shaft seat is provided with a filler and a pressure cover matching the rotating shaft, and the pressure cover and the first shaft seat are connected by a second fixing piece.

[0014] Preferably, a preheating device for a reaction vessel in the present invention is further configured as follows: the handle assembly includes a handle cover and a handle welded to the handle cover, the handle cover is sleeved on the rotating shaft and connected to the rotating shaft via a connector.

[0015] Preferably, a preheating device for a reaction vessel in the present invention is further configured as follows: the locking assembly includes a locking member and a locking plate, the locking member is arranged on the handle, the locking plate is fixed to the first shaft seat, and the locking plate is provided with a locking hole that matches the locking member.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a preheating device below the lower tube plate of the reaction vessel, which can heat the tube-side medium when the equipment is just started. The heated tube-side medium reacts with the catalyst, thereby solving the technical problem in the prior art that the catalytic process temperature requirement cannot be met when the equipment is just started.

Brief Description of the Drawings

[0017] Figure 1 It is a structural schematic diagram of a reaction container in the prior art.

[0018] Figure 2 This is a schematic diagram of the main structure of the preheating device in the present invention.

[0019] Figure 3 It is a side structural schematic diagram of the preheating device in the present invention.

[0020] Figure 4 For the Figure 2 Schematic diagram of the cross-sectional structure along line AA.

[0021] Figure 5 for Figure 3 A partial enlarged view of point B in the middle.

[0022] Figure 6 This is a schematic diagram of the main structure of the first opening and closing mechanism.

[0023] Figure 7 It is a side structural schematic diagram of the first opening and closing mechanism.

[0024] Figure 8 It is a structural diagram of the handle assembly.

[0025] Figure 9 for Figure 8 A partial enlarged view of point C in the middle.

[0026] Figure 1 Middle: 1', cylinder, 2', internals, 3', tube-side medium inlet, 4', tube-side medium outlet, 5', shell-side medium inlet, 6', shell-side medium outlet.

[0027] Figures 2 to 9 Middle: 1. Box body, 10. First upper side plate, 11. Second upper side plate, 12. Punching plate, 13. First lower side plate, 130. First bending support portion, 131. First bending groove portion, 132. First spring sheet, 14. Second lower side plate, 140. Second bending support portion, 141. Second bending groove portion, 15. First upper connecting plate, 16. Second upper connecting plate, 17. First lower connecting plate, 19. Bottom rib plate, 2. First opening and closing mechanism, 20. Support assembly, 200. First shaft seat, 201. Second shaft seat, 21. Opening and closing plate assembly, 210. Rotating shaft, 211. Joint, 212. Rib plate, 2 13. Connecting plate, 214. Angle steel, 215. Bushing, 216. Limiting groove, 217. Filling, 218. Pressure cover, 22. Handle assembly, 220. Handle cover, 221. Handle, 222. Connecting piece, 23. Locking assembly, 24. Locking piece, 240. Casing, 241. Sealing plate, 242. Positioning pin, 2420. Main body, 2421. Retaining ring, 243. Spring, 244. Operating panel, 25. Locking plate, 250. Locking hole for open position, 251. Locking hole for closed position, 3. Second opening and closing mechanism, 31. Opening and closing plate assembly, 4. Reaction vessel cylinder, 5. Heating chamber. [Specific implementation method]

[0028] The following is a further detailed description of a preheating device for a reaction vessel according to the present invention through specific embodiments.

[0029] See also Figures 2 to 9 , a preheating device for a reaction container, comprising: a box body 1, a first opening and closing mechanism 2, a second opening and closing mechanism 3 and a heater (not shown), the box body 1 comprises a first upper side plate 10, a second upper side plate 11, a punching plate 12, a first lower side plate 13, a second lower side plate 14, a first upper connecting plate 15, a second upper connecting plate 16, a first lower connecting plate 17 and a second lower connecting plate (not shown), the first upper side plate 10, the second upper side plate 11 and the punching plate 12 are respectively welded to the reaction container cylinder 4, the first upper connecting plate 15 is welded to the first upper side plate 10, the second upper connecting plate 16 is welded to the second upper side plate 11, the first lower side plate 13 and the second lower side plate 14 are respectively welded to the punching plate 12, the first lower connecting plate 17 is respectively welded to the first upper connecting plate 15 and the first lower side plate 13, and the second lower connecting plate is respectively welded to the second upper connecting plate 16 and the second lower side plate 14. A first bending support portion 130 is provided at the bottom of the first lower side plate 13, and a second bending support portion 140 is provided at the bottom of the second lower side plate 14. The heater is supported on the first bending support portion 130 and the second bending support portion 140. The first bending support portion 130 and the second bending support portion 140 are connected by a plurality of bottom ribs 19, and the bottom ribs 19 are welded to the first bending support portion 130 and the second bending support portion 140, respectively. In this embodiment, the first upper side plate 10 and the second upper side plate 11 are arranged in parallel, the first upper connecting plate 15 and the second upper connecting plate 16 are arranged in parallel, the first lower side plate 13 and the second lower side plate 14 are arranged in parallel, and the perforated plate 12 is arranged perpendicular to the first lower side plate 13 and the second lower side plate 14, respectively.

[0030] The first opening and closing mechanism 2 includes: a support assembly 20, an opening and closing plate assembly 21, a handle assembly 22 and a lock assembly 23. The support assembly 20 includes: a first shaft seat 200 and a second shaft seat 201. The first shaft seat 200 and the second shaft seat 201 are respectively welded to the reaction vessel barrel 4. The opening and closing plate assembly 21 includes: a rotating shaft 210, a plurality of joints 211, a plurality of ribs 212, a plurality of connecting plates 213 and a plurality of angle steels 214. The plurality of joints 211 are sleeved on the rotating shaft 210 in an interval shape. The joints 211 and the rotating shaft 210 are connected by a first fixing member. A rib 212 is welded to each joint 211. The connecting plates 213 are arranged on both sides of the rib 212 and are respectively welded to the rib 212 and the rotating shaft 210. The angle steels 214 are respectively welded to the rib 212 and the connecting plates. 213 are welded together, one end of the rotating shaft 210 is supported on the first shaft seat 200, and the other end of the rotating shaft 210 is supported on the second shaft seat 201. A shaft sleeve 215 is provided on the rotating shaft 210, and the shaft sleeve 215 is welded to the rotating shaft 210. One end of the first shaft seat 200 is provided with a limiting groove 216 that cooperates with the shaft sleeve 215, and the other end of the first shaft seat 200 is provided with a filler 217 and a pressure cover 218 that cooperate with the rotating shaft 210. The pressure cover 218 is connected to the first shaft seat 200 through a second fixing member. The handle assembly 22 includes: a handle cover 220 and a handle 221 welded to the handle cover 220, the handle cover 220 is sleeved on the rotating shaft 210 and connected to the rotating shaft 210 through a connecting member 222. In this embodiment, the connecting member 222 is a pin, and the lock assembly 23 includes a lock member 24 and a lock plate 25. The lock member 24 includes: a protective tube 240, a sealing plate 241, a positioning pin 242, a spring 243 and an operating plate 244. The protective tube 240 is welded in the handle 221, the sealing plate 241 is welded to one end of the protective tube 240, and the positioning pin 242 is welded to the spring 243. The positioning pin 242 is inserted into the casing 240, and both free ends of the positioning pin 242 protrude outside the casing 240. The positioning pin 242 includes a main body 2420 and a retaining ring 2421 provided on the main body 2420. The spring 243 is disposed in the casing 240 and sleeved on the main body 2420 of the positioning pin 242. One free end of the spring 243 abuts against the retaining ring 2421 of the positioning pin 242, and the other free end of the spring 243 abuts against the inner wall of the casing 240. The operating plate 244 is welded to the ends of the positioning pin 242. The locking plate 25 is fixed to the first shaft seat 200. The locking plate 25 has locking holes that cooperate with the locking member 24. The locking holes include an open position locking hole 250 and a closed position locking hole 251.

[0031] The structure of the second opening and closing mechanism 3 is the same as that of the first opening and closing mechanism 2 , and the opening and closing plate assembly 21 of the first opening and closing mechanism 2 and the opening and closing plate assembly 31 of the second opening and closing mechanism 3 are arranged at an angle of 110°. The opening and closing plate assembly 21 of the first opening and closing mechanism 2 is arranged between the first upper connecting plate 15 and the first lower side plate 13, and a first bending groove 131 is provided at the top of the first lower side plate 13, and a plurality of first spring pieces 132 uniformly distributed along the longitudinal direction of the first bending groove 131 are welded in the first bending groove 131, and the plurality of first spring pieces 132 are used to snap together with the opening and closing plate assembly 21 of the first opening and closing mechanism 2, and the opening and closing plate assembly 31 of the second opening and closing mechanism 3 is arranged between the second upper connecting plate 16 and the second lower side plate 14, and a second bending groove 141 is provided at the top of the second lower side plate 14, and a plurality of second spring pieces (not shown) uniformly distributed along the longitudinal direction of the second bending groove 141 are welded in the second bending groove 141, and the plurality of second spring pieces are used to snap together with the opening and closing plate assembly 31 of the second opening and closing mechanism 3.

[0032] The working principle of the preheating device of the present invention is as follows: when the device is just turned on and the gas needs to be heated, the handle 221 of the first opening and closing mechanism 2 is rotated clockwise. Since the handle cover 220 is connected to the rotating shaft 210 by a pin, the opening and closing plate assembly 21 of the first opening and closing mechanism 2 is driven to rotate clockwise until the opening and closing plate assembly 21 of the first opening and closing mechanism 2 is engaged with the first spring piece 132 on the first lower side plate 13 (that is, the opening and closing plate assembly 21 of the first opening and closing mechanism 2 is closed), and then the lock is locked. The operating plate 244 of the component 24 is pulled outward, thereby driving the positioning pin 242 and the retaining ring portion 2421 on the positioning pin 242 to be pulled outward together, and the spring 243 in the protective tube 240 is compressed. When the operator releases the operating plate, the compressed spring 243 rebounds, thereby driving the positioning pin 242 to insert into the closed position lock hole 251 of the lock plate 25, realizing the closed position positioning lock. The closing principle of the opening and closing plate assembly 31 of the second opening and closing mechanism 3 is the same as that of the opening and closing plate assembly of the first opening and closing mechanism 2. The closing principle of the component 21 is the same, the difference is that: since the setting positions of the first opening and closing mechanism 2 and the second opening and closing mechanism 3 are different, the first opening and closing mechanism 2 turns the handle 221 clockwise to realize the closing of the opening and closing plate assembly 21, while the second opening and closing mechanism 3 turns the handle counterclockwise to realize the closing of the opening and closing plate assembly 31. When the opening and closing plate assemblies of the first opening and closing mechanism 2 and the second opening and closing mechanism 3 are both closed, a local heating chamber 5 is formed in the box body 1, and the heater in the heating chamber 5 heats the gas coming out of the heat exchange tube, and the heated gas then enters the bottom to react with the catalyst. When the equipment is operating normally, the heater stops heating, and then the opening and closing plate assembly 21 of the first opening and closing mechanism 2 and the opening and closing plate assembly 31 of the second opening and closing mechanism 3 are opened (that is, the handle of the first opening and closing mechanism 2 is turned counterclockwise and the handle of the second opening and closing mechanism 3 is turned clockwise). After opening, they are locked and positioned by the lock assembly 23 (the lock positioning operation principle of the open position is the same as the lock positioning operation principle of the closed position).

[0033] In summary, the present invention provides a preheating device below the lower tube plate of the reaction vessel. The preheating device can heat the tube-side medium when the equipment is just started. The heated tube-side medium reacts with the catalyst, thereby solving the technical problem in the prior art that the catalytic process temperature requirement cannot be met when the equipment is just started. In addition, the preheating device of the present invention greatly improves the stability of opening and closing by adopting a structure of a spring sheet buckle and a locking assembly lock.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A preheating device for a reaction vessel, characterized in that: include: A box body, a first opening and closing mechanism, a second opening and closing mechanism and a heater, the box body includes a first upper side plate, a second upper side plate, a punching plate, a first lower side plate, a second lower side plate, a first upper connecting plate and a second upper connecting plate, the first upper side plate, the second upper side plate and the punching plate are respectively welded to the reaction container cylinder, the first upper connecting plate is welded to the first upper side plate, the second upper connecting plate is welded to the second upper side plate, the first lower side plate and the second lower side plate are respectively welded to the punching plate, the first opening and closing mechanism and the second opening and closing mechanism have the same structure, both include The invention comprises: a support assembly, an opening and closing plate assembly, a handle assembly and a lock assembly, wherein the support assembly is welded to the cylinder of the reaction vessel, the opening and closing plate assembly of the first opening and closing mechanism is arranged between the first upper connecting plate and the first lower side plate, the top of the first lower side plate is provided with a plurality of first spring pieces that are snapped with the opening and closing plate assembly of the first opening and closing mechanism, the opening and closing plate assembly of the second opening and closing mechanism is arranged between the second upper connecting plate and the second lower side plate, the top of the second lower side plate is provided with a plurality of second spring pieces that are snapped with the opening and closing plate assembly of the second opening and closing mechanism, The bottom of the first lower side plate is provided with a first bent support portion, and the bottom of the second lower side plate is provided with a second bent support portion. The heater is supported on the first bent support portion and the second bent support portion. The support assembly includes: a first shaft seat and a second shaft seat, and the first shaft seat and the second shaft seat are respectively welded to the reaction vessel cylinder. The opening and closing plate assembly includes: a rotating shaft, a plurality of joints, a plurality of ribs, a plurality of connecting plates and a plurality of angle steel pieces. The plurality of joints are sleeved on the rotating shaft in an interval shape, and the joints are connected to the rotating shaft through a first fixing member. A rib plate is welded on each joint, and the connecting plates are arranged on both sides of the rib plate and are respectively welded to the rib plate and the rotating shaft. The angle steel parts are respectively welded to the rib plate and the connecting plates. One end of the rotating shaft is supported on the first shaft seat, and the other end of the rotating shaft is supported on the second shaft seat. A shaft sleeve is provided on the rotating shaft, and the shaft sleeve is welded to the rotating shaft. One end of the first shaft seat is provided with a limiting groove that matches the shaft sleeve, and the other end of the first shaft seat is provided with a filler and a pressure cover that matches the rotating shaft. The pressure cover and the first shaft seat are connected by a second fixing member.

2. A preheating device for a reaction vessel according to claim 1, characterized in that: The box body further includes a first lower connecting plate and a second lower connecting plate. The first lower connecting plate is welded to the first upper connecting plate and the first lower side plate respectively. The second lower connecting plate is welded to the second upper connecting plate and the second lower side plate respectively.

3. A preheating device for a reaction vessel according to claim 1, characterized in that: The opening and closing plate assembly of the first opening and closing mechanism and the opening and closing plate assembly of the second opening and closing mechanism are arranged at an angle of 110°.

4. A preheating device for a reaction vessel according to claim 1, characterized in that: The first bending support portion and the second bending support portion are connected via a plurality of bottom ribs, and the bottom ribs are respectively welded to the first bending support portion and the second bending support portion.

5. A preheating device for a reaction vessel according to claim 1, characterized in that: A first bending groove is provided on the top of the first lower side plate, and a plurality of first spring pieces are welded into the first bending groove at even intervals along the longitudinal direction of the first bending groove.

6. A preheating device for a reaction vessel according to claim 1, characterized in that: A second bending groove is provided on the top of the second lower side plate, and a plurality of second spring pieces are welded into the second bending groove at even intervals along the longitudinal direction of the second bending groove.

7. A preheating device for a reaction vessel according to claim 1, characterized in that: The handle assembly comprises a handle cover and a handle welded to the handle cover. The handle cover is sleeved on the rotating shaft and connected to the rotating shaft via a connecting piece.

8. A preheating device for a reaction vessel according to claim 7, characterized in that: The locking assembly includes a locking member and a locking plate. The locking member is arranged on the handle. The locking plate is fixed to the first shaft seat. The locking plate is provided with a locking hole that matches the locking member.

Images