Feeding distributor

Abstract

The utility model relates to a feed distributor which comprises a cylinder body, the cylinder body comprises a cylindrical section and a conical section, a dish-shaped seal head welded with the conical section of the cylinder body is arranged in the cylinder body, the space in the cylinder body is divided into an upper reaction area and a lower gas feeding area by the dish-shaped seal head, a plurality of nozzles are arranged on the dish-shaped seal head, and the nozzles are communicated with the conical section of the cylinder body. Wear-resistant lining layers are arranged on the inner wall of the barrel in the upper reaction area, the upper surface of the dish-shaped seal head and the outer surface of the nozzle, an included angle area is formed between the bottom of the dish-shaped seal head and the conical section of the barrel, the dish-shaped seal head is provided with a flexible heat insulation mechanism in the included angle area, the barrel is provided with a heat insulation lining layer in the included angle area, and the heat insulation lining layer is arranged between the bottom of the dish-shaped seal head and the conical section of the barrel. And the flexible heat insulation mechanism and the heat insulation lining layer are tightly jointed, so that the gas can be uniformly distributed.

Description

[Technical field]

[0001] The utility model relates to the field of reactors, in particular to a feed distributor of a reactor. [Background technology]

[0002] The reactor is a device for realizing the reaction process and is widely used in chemical, oil refining, metallurgy, light industry and other industrial sectors. The reactor is composed of components such as a shell and a gas distributor. Among them, the gas distributor is the core component of the reactor. The rationality of its structure and the uniformity of its distribution will directly affect the reaction efficiency of the reactor. Please refer to the prior art (CN202210195257.1), which discloses a tubular gas distributor in the prior art. The tubular gas distributor includes: a branch pipe and a plurality of branch pipes connected to the branch pipe, a branch pipe air inlet is provided on the branch pipe, and a plurality of air distribution holes are provided on the branch pipe. The defects of this tubular gas distributor are: 1. The structure is complex and the manufacturing cost is high; 2. The distribution uniformity is poor.

[0003] Therefore, it is necessary to provide a feed distributor that solves the above technical problems. [Contents of the utility model]

[0004] In order to solve the above problems, the purpose of the utility model is to provide a feed distributor with simple structure and uniform distribution.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a feed distributor, comprising: a cylinder, the cylinder comprising a cylindrical section and a conical section, the cylinder is provided with a dish-shaped head welded to the conical section of the cylinder, the dish-shaped head divides the space in the cylinder into an upper reaction zone and a lower gas feed zone, the dish-shaped head is provided with a plurality of nozzles, and wear-resistant lining layers are provided on the inner wall of the cylinder located in the upper reaction zone, on the upper surface of the dish-shaped head and on the outer surface of the nozzle, an angle zone is formed between the bottom of the dish-shaped head and the conical section of the cylinder, the dish-shaped head is provided with a flexible thermal insulation mechanism in the angle zone, the cylinder is provided with a thermal insulation lining layer in the angle zone, and the flexible thermal insulation mechanism and the thermal insulation lining layer are tightly joined.

[0006] Preferably, a feed distributor in the utility model is further configured as follows: the flexible thermal insulation mechanism includes an inner layer of ceramic fiber felt, an outer layer of ceramic fiber felt, a ring plate and a cover plate, the ring plate is arranged above the inner layer of ceramic fiber felt and the outer layer of ceramic fiber felt, the cover plate is covered on the outside of the ring plate and the outer layer of ceramic fiber felt, and the dish-shaped head is welded with a plurality of bolts at the position corresponding to the inner layer of ceramic fiber felt, and the bolts are respectively passed through the inner layer of ceramic fiber felt, the outer layer of ceramic fiber felt and the cover plate and then fixed by nuts.

[0007] Preferably, a feed distributor in the utility model is further configured as follows: the ring plate and the cover plate are both made of stainless steel material.

[0008] Preferably, a feed distributor in the utility model is further configured as follows: the bolts and nuts are spot welded.

[0009] Preferably, a feed distributor in the utility model is further configured as follows: the cover plate and the ring plate are spot welded.

[0010] Preferably, a feed distributor in the utility model is further configured as follows: the thickness of the thermal insulation lining layer is 100 mm.

[0011] Preferably, a feed distributor in the utility model is further configured as follows: an edge strip is provided between the heat insulating lining layer and the wear-resistant lining layer, and the edge strip is welded to the inner wall of the cylinder.

[0012] Preferably, a feed distributor in the utility model is further configured as follows: the edge strip is made of stainless steel material.

[0013] Preferably, a feed distributor in the utility model is further configured as follows: a heat-insulating layer is provided on the outer side of the cylinder.

[0014] Preferably, a feed distributor in the utility model is further configured as follows: the nozzle is arranged along the normal direction of the dish-shaped head.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the feed distributor in the utility model has a simple structure and is easy to install. By welding a dish-shaped head in the cylinder and distributing a large number of nozzles on the dish-shaped head, the gas can be evenly distributed. In addition, the utility model provides a flexible heat insulation mechanism in the angle area through the dish-shaped head, and the cylinder is provided with a heat insulation lining layer in the angle area. The flexible heat insulation mechanism and the heat insulation lining layer are tightly connected, thereby achieving a good heat insulation effect in the angle area, protecting the weld between the dish-shaped head and the cylinder, and avoiding cracking of the weld here due to heat. Because the temperature of the upper reaction zone is relatively high, if no insulation is provided in the angle zone, the heat of the upper reaction zone will be transferred to the weld between the dish head and the cylinder, thereby causing cracks in the weld. In addition, the reason why the utility model provides a flexible insulation mechanism on the dish head in the angle zone instead of a rigid insulation lining layer like the cylinder is mainly based on the following considerations: If both the dish head and the cylinder are provided with rigid insulation lining layers in the angle zone, then the rigid insulation lining layers themselves will also deform and form cracks after being heated, and thus cannot play a good insulation role. Therefore, the utility model avoids this problem through a flexible and rigid structure, and thus has a better insulation effect.

Brief Description of the Drawings

[0016] Figure 1 This is a schematic diagram of the main structure of the feed distributor in the utility model.

[0017] Figure 2 It is a schematic diagram of the top view of the feed distributor in the utility model.

[0018] Figure 3 It is a schematic diagram of the structure at the angle in the utility model.

[0019] Figure 4 For along Figure 3 Schematic diagram of the cross-sectional structure along line AA shown.

[0020] Figures 1 to 4 In: 1. Cylinder, 10. Cylinder section, 11. Conical cylinder section, 12. Insulation layer, 13. Upper reaction zone, 14. Lower gas feed zone, 15. First wear-resistant lining layer, 16. Insulation lining layer, 2. Disc head, 20. Second wear-resistant lining layer, 3. Nozzle, 30. Third wear-resistant lining layer, 4. Flexible insulation mechanism, 40. Inner layer of ceramic fiber felt, 41. Outer layer of ceramic fiber felt, 42. Ring plate, 43. Cover plate, 44. Bolts, 45. Nuts, 5. Edge strips, 6. Gas feed port, 7. Weld. [Specific implementation method]

[0021] The feed distributor of the utility model is further described in detail below through specific embodiments.

[0022] Ginseng Figures 1 to 4 As shown, a feed distributor comprises: a cylinder 1, the cylinder 1 comprises a cylindrical section 10 and a conical section 11, and a heat preservation layer 12 is arranged on the outer side of the cylinder 1, so it has a good heat preservation effect. A dish-shaped head 2 is arranged in the cylinder 1 and is welded to the conical section 11 of the cylinder 1, and the dish-shaped head 2 divides the space in the cylinder 1 into an upper reaction zone 13 and a lower gas feed zone 14, and a plurality of nozzles 3 are arranged on the dish-shaped head 2, and the nozzles 3 are arranged along the normal direction of the dish-shaped head 2. The arrangement of several nozzles 3 can make the gas distribution uniform. A first wear-resistant lining layer 15 is provided on the inner wall of the cylinder 1 located in the upper reaction zone 13, a second wear-resistant lining layer 20 is provided on the upper surface of the dished head 2, and a third wear-resistant lining layer 30 is provided on the outer surface of the nozzle 3. The arrangement of the first wear-resistant lining layer 15, the second wear-resistant lining layer 20 and the third wear-resistant lining layer 30 can well protect the inner wall of the cylinder 1 and prevent the catalyst from causing wear to the inner wall of the cylinder 1.

[0023] An angle zone is formed between the bottom of the dish-shaped head 2 and the conical section 11 of the cylinder 1. The dish-shaped head 2 is provided with a flexible heat insulation mechanism 4 in the angle zone. The flexible heat insulation mechanism 4 includes an inner ceramic fiber felt 40, an outer ceramic fiber felt 41, a ring plate 42 and a cover plate 43. The ring plate 42 is arranged above the inner ceramic fiber felt 40 and the outer ceramic fiber felt 41. The cover plate 43 is covered on the outer side of the ring plate 42 and the outer ceramic fiber felt 41. The cover plate 43 is spot welded to the ring plate 42. A plurality of bolts 44 are welded to the position of the dish-shaped head 2 corresponding to the inner ceramic fiber felt 40. The bolts 44 pass through the inner ceramic fiber felt 40, the outer ceramic fiber felt 41 and the cover plate 43 respectively and are fixed by nuts 45. The bolts 44 are spot welded to the nuts 45. In this embodiment, the ring plate 42 and the cover plate 43 are made of stainless steel, so they have good corrosion resistance. The cylinder 1 is provided with a thermal insulation lining layer 16 in the angle area, and an edge strip 5 is provided between the thermal insulation lining layer 16 and the first wear-resistant lining layer 15, and the edge strip 5 is welded to the inner wall of the cylinder 1. In this embodiment, the thickness of the thermal insulation lining layer 16 is 100 mm, and the edge strip 5 is made of stainless steel. The flexible thermal insulation mechanism 4 and the thermal insulation lining layer 16 are tightly joined, thereby playing a good thermal insulation role in the angle area, protecting the weld 7 between the dish-shaped head 2 and the cylinder 1, and avoiding the cracking of the weld 7 here due to heat. In addition, the utility model avoids the problem of thermal deformation of the thermal insulation structure itself by adopting a flexible and rigid thermal insulation structure in the angle area.

[0024] The working principle of the feed distributor in the utility model is as follows: the gas enters from the gas feed port 6 below the cylinder 1, and then enters the upper reaction zone 13 through a plurality of nozzles 3 arranged on the dish-shaped head 2 for reaction, thereby achieving uniform distribution of the gas. The setting of the heat insulation structure in the angle zone can prevent the heat generated in the upper reaction zone 13 during the reaction process from being transferred to the weld 7 between the dish-shaped head 2 and the cylinder 1, thereby well protecting the weld 7 and extending the service life of the distributor.

[0025] In summary, the feed distributor in the utility model has a simple structure and is easy to install. By welding a dish-shaped head inside the cylinder 1 and distributing a plurality of nozzles 3 on the dish-shaped head 2, the gas can be evenly distributed. In addition, the utility model provides a flexible thermal insulation mechanism 4 in the angle area through the dish-shaped head 2, and the cylinder 1 provides a thermal insulation lining layer 16 in the angle area. The flexible thermal insulation mechanism 4 and the thermal insulation lining layer 16 are tightly joined, thereby achieving a good thermal insulation effect in the angle area, protecting the weld 7 between the dish-shaped head 2 and the cylinder 1, and avoiding cracking of the weld 7 due to heat.

[0026] The above-mentioned embodiments are only illustrative of the principles and effects of the invention of the utility model, as well as some embodiments of its application, and are not intended to limit the invention of the utility model. 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 these all fall within the scope of protection of the invention.

Claims

1. A feed distributor, comprising: A cylinder body, the cylinder body includes a cylindrical section and a conical section, and is characterized in that: a dish-shaped head welded to the conical section of the cylinder body is provided in the cylinder body, the dish-shaped head divides the space in the cylinder body into an upper reaction zone and a lower gas feeding zone, a plurality of nozzles are provided on the dish-shaped head, and wear-resistant lining layers are provided on the inner wall of the cylinder located in the upper reaction zone, on the upper surface of the dish-shaped head and on the outer surface of the nozzle, an angle zone is formed between the bottom of the dish-shaped head and the conical section of the cylinder body, a flexible thermal insulation mechanism is provided on the dish-shaped head in the angle zone, and a thermal insulation lining layer is provided on the cylinder body in the angle zone, and the flexible thermal insulation mechanism and the thermal insulation lining layer are tightly joined.

2. A feed distributor according to claim 1, characterized in that: The flexible thermal insulation mechanism includes an inner layer of ceramic fiber felt, an outer layer of ceramic fiber felt, a ring plate and a cover plate. The ring plate is arranged above the inner layer of ceramic fiber felt and the outer layer of ceramic fiber felt. The cover plate is covered on the outside of the ring plate and the outer layer of ceramic fiber felt. A plurality of bolts are welded at the position of the dish-shaped head corresponding to the inner layer of ceramic fiber felt. The bolts pass through the inner layer of ceramic fiber felt, the outer layer of ceramic fiber felt and the cover plate respectively and are fixed by nuts.

3. A feed distributor as claimed in claim 2, characterized in that: The ring plate and the cover plate are both made of stainless steel.

4. A feed distributor as claimed in claim 2, characterized in that: The bolt and the nut are spot welded.

5. A feed distributor as claimed in claim 2, characterized in that: The cover plate and the ring plate are spot welded.

6. A feed distributor as claimed in claim 1, characterized in that: The thickness of the thermal insulation lining layer is 100 mm.

7. A feed distributor as claimed in claim 1, characterized in that: An edge strip is arranged between the heat-insulating lining layer and the wear-resistant lining layer, and the edge strip is welded to the inner wall of the cylinder.

8. A feed distributor as claimed in claim 7, characterized in that: The edge strip is made of stainless steel.

9. A feed distributor as claimed in claim 1, characterized in that: A heat-insulating layer is arranged on the outer side of the cylinder.

10. A feed distributor according to claim 1, characterized in that: The nozzle is arranged along the normal direction of the dish-shaped head.

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