Shell-and-tube catalyst optimization synthesis tower suitable for methanol synthesis

Abstract

The utility model discloses a shell-and-tube catalyst optimization synthetic tower suitable for methanol synthesis, and relates to the technical field of methanol synthesis, the shell-and-tube catalyst optimization synthetic tower comprises a shell assembly, a reaction assembly and a spraying assembly are arranged in the shell assembly, the spraying assembly is arranged on the outer side of the reaction assembly, the reaction assembly comprises a plurality of tube bundles, and the tube bundles are arranged in the shell assembly. A gas distribution disc is arranged at the bottom of the tube bundle, a collection disc is arranged at the top of the tube bundle, the tube bundle is communicated with the gas distribution disc and the collection disc, reinforcing ribs are arranged on the outer side of the tube bundle and are of a latticed structure, metal foam is arranged between the reinforcing ribs, and the metal foam is fixedly connected with the outer side of the tube bundle; according to the utility model, the overall strength of the tube bundle can be effectively improved, heat of the tube bundle can be fully discharged, hot spots are avoided, and the practical value is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to methanol synthesis technical field, concretely is a kind of shell and tube catalyst optimization synthesis tower suitable for methanol synthesis. BACKGROUND

[0002] Methanol (Methanol, CH3OH) is an important chemical raw material, widely used in production formaldehyde, acetic acid, MTBE (methyl tertiary butyl ether), dimethyl ether and other chemicals, it is also fuel and solvent. Industrial synthesis methanol is mainly through carbon monoxide (CO) and carbon dioxide (CO2) and hydrogen (H2) under the action of catalyst reaction.

[0003] Based on the above, the present inventors found that the following problems exist: the catalyst tube bundle inside for methanol synthesis needs to bear greater pressure, and also needs to have stronger heat dissipation performance, the strength and heat dissipation performance of traditional tube bundle is relatively limited, easy to appear rupture and local temperature too high phenomenon, inconvenient to use.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a shell and tube catalyst optimization synthesis tower suitable for methanol synthesis is provided, so as to achieve the purpose of having more practical value. INVENTION CONTENTS

[0005] The utility model is to provide a kind of shell and tube catalyst optimization synthesis tower suitable for methanol synthesis, to solve the problems raised in the above background art.

[0006] A kind of shell and tube catalyst optimization synthesis tower suitable for methanol synthesis, including shell assembly, reaction assembly and spray assembly are equipped in the shell assembly inside, the spray assembly is arranged outside reaction assembly, the reaction assembly includes several tube bundles, the tube bundle bottom is equipped with gas distribution plate, and the tube bundle top is equipped with collection tray, the tube bundle is communicated with gas distribution plate and collection tray, the tube bundle outside is equipped with reinforcing rib, the reinforcing rib is grid structure, metal foam is equipped between the reinforcing rib, the metal foam is fixedly connected with tube bundle outside.

[0007] By adopting the technical scheme, the shell assembly is internally provided with the reaction assembly and the spraying assembly, the spraying assembly is arranged outside the reaction assembly, the shell assembly is convenient to provide protection for the internal reaction assembly, the spraying assembly is convenient to spray cooling water on the reaction assembly, the reaction heat is conveniently discharged, the pipe bundle is communicated with the gas distribution disc and the collection disc, the gas distribution disc is convenient to pass the reaction gas into the pipe bundle for reaction, the collection disc is convenient to discharge the gas after the reaction is completed, the reinforcing ribs are in a grid structure, metal foams are arranged between the reinforcing ribs, the reinforcing ribs are convenient to improve the strength of the pipe bundle, the pipe bundle is prevented from being damaged by the high-strength internal gas pressure, the metal foams are internally filled with a large number of pores or channels, the capillary effect is generated to adsorb the cooling water, the cooling water is uniformly covered on the surface of the pipe bundle, the evaporation of the cooling water is convenient to take away the reaction heat, some areas are prevented from forming hot spots without being covered by the cooling water, and the metal foams are further convenient to improve the overall strength of the pipe bundle.

[0008] Further, the pipe bundle is internally provided with a catalytic cage, a connecting strip is fixedly installed at the top of the catalytic cage, and the top of the connecting strip is fixedly connected with the catalytic cage adjacent to the top end.

[0009] By adopting the technical scheme, the top of the connecting strip is fixedly connected with the catalytic cage adjacent to the top end, the catalytic cage is convenient to support the catalyst, the catalyst is layered in the pipe bundle, and the catalyst is prevented from being blocked by being accumulated and compacted.

[0010] Further, one side of the gas distribution disc is provided with a feeding port, one side of the collection disc is provided with a discharging port, and the feeding port and the discharging port are arranged outside the shell assembly.

[0011] By adopting the technical scheme, the feeding port and the discharging port are arranged outside the shell assembly, external pipelines are conveniently communicated, the high-pressure reaction gas is conveniently passed into the reaction assembly for reaction, and the gas after the reaction is conveniently collected.

[0012] Further, the shell assembly comprises a shell body, the shell body is in a double-layer structure, and the shell body is provided with an exhaust interface at the top.

[0013] By adopting the technical scheme, the shell body is in a double-layer structure, and the shell body is provided with an exhaust interface at the top, the shell body is convenient to provide heat preservation and heat insulation performance, the reaction heat is prevented from being lost to the outside, the exhaust interface is convenient to communicate with an external negative pressure device, the shell body is convenient to form a negative pressure, the efficiency of the evaporation of the cooling water and the discharge of the heat is improved, the water vapor with heat is collected, and the utilization rate of energy is improved.

[0014] Further, the spraying assembly comprises two water inlet rings, one side of the water inlet ring is provided with a water inlet interface, and the water inlet interface is arranged outside the shell assembly.

[0015] By adopting the technical scheme, the water inlet interfaces are arranged on the outer side of the shell assembly, which is convenient for connecting external pipelines and feeding cooling water to the spray assembly.

[0016] Further, a plurality of communication pipes are communicated between the two water inlet rings, and the communication pipes are arranged in an annular array.

[0017] By adopting the technical scheme, the plurality of communication pipes are communicated between the two water inlet rings, which is convenient for feeding the cooling water in the water inlet rings to the communication pipes.

[0018] Further, a plurality of spray rings are communicated on one side of the communication pipes, and the spray rings on the same layer are communicated with each other.

[0019] By adopting the technical scheme, the plurality of spray rings are communicated on one side of the communication pipes, and the spray rings on the same layer are communicated with each other, which is convenient for feeding the cooling water in the communication pipes to the spray rings.

[0020] Further, the spray ring is sleeved outside the pipe bundle, and a spray head is fixedly installed on the inner side of the spray ring.

[0021] By adopting the technical scheme, the spray ring is sleeved outside the pipe bundle, and the spray head is fixedly installed on the inner side of the spray ring, which is convenient for the spray head to spray the cooling water in the spray ring to the pipe bundle, and facilitates the metal foam to absorb the cooling water to discharge heat.

[0022] Compared with the prior art, the utility model has the advantages that: the reaction assembly and the spray assembly are arranged in the shell assembly, the spray assembly is arranged outside the reaction assembly, the shell assembly can protect the reaction assembly, the spray assembly can spray cooling water to the reaction assembly, the reaction heat can be discharged, the pipe bundle is communicated with the gas distribution plate and the collection plate, the gas distribution plate can feed the reaction gas into the pipe bundle to react, the collection plate can discharge the reaction gas after the reaction, the reinforcing ribs are arranged in a grid structure, the metal foam is arranged between the reinforcing ribs, the reinforcing ribs can improve the strength of the pipe bundle, the metal foam can absorb the cooling water to form capillary effect, the cooling water can be evenly distributed on the surface of the pipe bundle, the evaporation of the cooling water can take away the reaction heat, some areas can not be covered by the cooling water to form hot spots, the metal foam can further improve the strength of the pipe bundle, the utility model can improve the strength of the pipe bundle, can discharge the heat of the pipe bundle, can avoid hot spots, and has high practical value. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure schematic view of a shell-and-tube catalyst optimization synthesis tower suitable for methanol synthesis.

[0024] Figure 2 The utility model relates to an explosion map of a shell and tube type catalyst optimization synthesis tower suitable for methanol synthesis;

[0025] Figure 3 It is partial stereoscopic structure schematic diagram inside the shell assembly of the utility model;

[0026] Figure 4 It is partial explosion map of the tube bundle of the utility model;

[0027] Figure 5 The utility model provides Figure 2 The enlarged view of middle A structure.

[0028] In the figure: 101, shell assembly;10101, shell;10102, exhaust interface;102, reaction assembly;10201, gas distribution disc;10202, collection disc;10203, tube bundle;10204, reinforcing rib;10205, metal foam;10206, feed inlet;10207, discharge outlet;10208, catalytic cage;10209, connecting strip;103, spraying assembly;10301, water inlet ring;10302, communication pipe;10303, spraying ring;10304, spray head;10305, water inlet interface. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0030] Please refer to Figures 1-5The utility model provides a technical scheme: a shell -and -tube catalyst optimization synthetic tower suitable for methanol synthesis, including shell assembly 101, reaction subassembly 102 and spray subassembly 103 are equipped with in shell assembly 101, spray subassembly 103 sets up outside reaction subassembly 102, through the reaction subassembly 102 and spray subassembly 103 of being equipped with in shell assembly 101, spray subassembly 103 sets up outside reaction subassembly 102, it is convenient for shell assembly 101 to provide protection to internal reaction subassembly 102, spray subassembly 103 is convenient for to reaction subassembly 102 spray cooling water, it is convenient to discharge reaction heat, reaction subassembly 102 includes several pipe bundle 10203, and pipe bundle 10203 bottom is equipped with gas distribution plate 10201, and pipe bundle 10203 top is equipped with collection tray 10202, and pipe bundle 10203 is connected with gas distribution plate 10201 and collection tray 10202, through pipe bundle 10203 with gas distribution plate 10201 and collection tray 10202 intercommunication, it is convenient for gas distribution plate 10201 to pass into pipe bundle 10203 inside and carry out the reaction, and collection tray 10202 is convenient for to discharge the gas after reaction after completion, and pipe bundle 10203 outside is equipped with reinforcing rib 10204, reinforcing rib 10204 is gridlike structure, and metal foam 10205 is equipped between reinforcing rib 10204, through reinforcing rib 10204 gridlike structure, metal foam 10205 is equipped between reinforcing rib 10204, it is convenient for reinforcing rib 10204 to improve pipe bundle 10203 strength, avoid pipe bundle 10203 to be damaged by internal high strength gas pressure, and metal foam 10205 is full of a large number of porosity or passage, can produce capillary effect and adsorb cooling water, make cooling water evenly cover in pipe bundle 10203 surface, it is convenient for the evaporation of cooling water and take away reaction heat, can effectively avoid that some areas do not have cooling water cover and form hot spot, and metal foam 10205 can further improve pipe bundle 10203 overall strength, and metal foam 10205 and pipe bundle 10203 outside fixed connection.

[0031] Wherein, pipe bundle 10203 is provided with catalytic cage 10208, catalytic cage 10208 top fixed mounting has connecting strip 10209, and the top of connecting strip 10209 is fixedly connected with the catalytic cage 10208 adjacent to the top end, through the top of connecting strip 10209 is fixedly connected with the catalytic cage 10208 adjacent to the top end, it is convenient for catalytic cage 10208 to support catalyst, so that the catalyst is layered in pipe bundle 10203, avoid the accumulation of catalyst compaction and blockage.

[0032] The gas distribution disc 10201 is provided with a feeding port 10206, and the collecting disc 10202 is provided with a discharging port 10207. The feeding port 10206 and the discharging port 10207 are arranged outside the shell assembly 101, which facilitates the connection with external pipelines, the introduction of high-pressure reaction gas into the reaction assembly 102, and the collection of the reacted gas.

[0033] The shell assembly 101 comprises a shell 10101, which is a double-layer structure and is provided with an exhaust port 10102 at the top. The double-layer structure of the shell 10101 and the exhaust port 10102 at the top facilitate the provision of heat insulation performance by the shell 10101, the prevention of heat loss to the outside, the connection with external negative pressure devices through the exhaust port 10102, the formation of negative pressure in the shell 10101, the improvement of the efficiency of water vaporization and heat removal, and the collection of water vapor with heat, thereby improving the utilization rate of energy.

[0034] The spray assembly 103 comprises two water inlet rings 10301, which are provided with water inlet ports 10305. The water inlet ports 10305 are arranged outside the shell assembly 101, which facilitates the connection with external pipelines and the introduction of cooling water into the spray assembly 103.

[0035] The two water inlet rings 10301 are connected by a plurality of communication pipes 10302 arranged in a ring array. The connection between the two water inlet rings 10301 and the communication pipes 10302 facilitates the introduction of cooling water in the water inlet rings 10301 into the communication pipes 10302.

[0036] The communication pipes 10302 are connected by a plurality of spray rings 10303 on one side. The spray rings 10303 in the same layer are connected to each other. The connection between the communication pipes 10302 and the spray rings 10303 facilitates the introduction of cooling water in the communication pipes 10302 into the spray rings 10303.

[0037] The spray ring 10303 is sleeved outside the tube bundle 10203, and the spray ring 10303 is fixedly installed with a spray head 10304 on the inner side. The spray ring 10303 is sleeved outside the tube bundle 10203, and the spray ring 10303 is fixedly installed with a spray head 10304 on the inner side, which facilitates the spraying of cooling water in the spray ring 10303 towards the tube bundle 10203 by the spray head 10304, and the heat removal by the metal foam 10205.

[0038] Specifically, the working principle of the shell-and-tube catalyst optimization synthesis tower suitable for methanol synthesis is as follows: in use, the shell 10101 is a double-layer structure, and an exhaust interface 10102 is formed at the top of the shell 10101, so as to provide heat preservation and insulation performance for the shell 10101, avoid reaction heat loss to the outside, and facilitate the connection of an external negative pressure device, so as to form negative pressure inside the shell 10101, improve the efficiency of cooling water evaporation and heat removal, and collect water vapor with heat to improve energy utilization. The feed port 10206 and the discharge port 10207 are arranged on the outside of the shell assembly 101, facilitating the connection of external pipelines, convenient for passing high-pressure reaction gas into the reaction assembly 102 for reaction, and facilitating the collection of the gas after reaction. The tube bundle 10203 is in communication with the gas distribution disc 10201 and the collection disc 10202, so as to facilitate the gas distribution disc 10201 to pass the reaction gas into the tube bundle 10203 for reaction, and the collection disc 10202 to discharge the gas after reaction. The reinforcing ribs 10204 are in a grid structure, and metal foams 10205 are arranged between the reinforcing ribs 10204, so as to improve the strength of the tube bundle 10203 and avoid damage to the tube bundle 10203 due to high internal air pressure. The metal foams 10205 are filled with a large number of pores or channels, can produce capillary effect to adsorb cooling water, make the cooling water evenly cover the surface of the tube bundle 10203, facilitate the evaporation of the cooling water to take away reaction heat, can effectively avoid the formation of hot spots due to the absence of cooling water in some areas, and can further improve the overall strength of the tube bundle 10203. The water inlet ring 10301 is provided with a water inlet interface 10305 on one side, and the water inlet interface 10305 is arranged on the outside of the shell assembly 101, facilitating the connection of external pipelines and the convenient passage of cooling water into the spraying assembly 103. The two water inlet rings 10301 are in communication with a plurality of communication pipes 10302, so as to facilitate the passage of cooling water in the water inlet ring 10301 into the communication pipe 10302. The communication pipe 10302 is in communication with a plurality of spraying rings 10303 on one side, and the spraying rings 10303 of the same layer are in communication with each other, so as to facilitate the passage of cooling water in the communication pipe 10302 into the spraying ring 10303. The spraying ring 10303 is sleeved outside the tube bundle 10203, and the spraying ring 10303 is fixedly installed with a spray head 10304 on the inside, so as to facilitate the spray head 10304 to spray the cooling water in the spraying ring 10303 to the tube bundle 10203, and facilitate the metal foams 10205 to adsorb the cooling water for heat removal.

[0039] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A shell-and-tube catalyst-optimized synthesis column suitable for methanol synthesis, characterized in that, The utility model provides a kind of reaction device, including shell assembly (101), reaction assembly (102) and spray assembly (103) are equipped inside the shell assembly (101), the spray assembly (103) is arranged outside reaction assembly (102), the reaction assembly (102) includes several pipe bundles (10203), the pipe bundle (10203) bottom is equipped with air distribution plate (10201), and the pipe bundle (10203) top is equipped with collection plate (10202), the pipe bundle (10203) is communicated with air distribution plate (10201) and collection plate (10202), the pipe bundle (10203) outside is equipped with reinforcing rib (10204), the reinforcing rib (10204) is grid structure, metal foam (10205) is equipped between the reinforcing rib (10204), and the metal foam (10205) is fixedly connected with the outside of pipe bundle (10203).

2. A shell and tube catalyst optimized synthesis column suitable for methanol synthesis as claimed in claim 1, wherein, The pipe bundle (10203) is provided with a catalytic cage (10208) inside, and the catalytic cage (10208) is fixedly installed with a connecting strip (10209) at the top.

3. A shell and tube catalyst optimized synthesis column suitable for methanol synthesis as claimed in claim 2, wherein, The air distribution plate (10201) is provided with a feed inlet (10206) on one side, and the collection plate (10202) is provided with a discharge outlet (10207) on one side.

4. A shell and tube catalyst optimized synthesis column suitable for methanol synthesis as claimed in claim 1 wherein, The shell assembly (101) includes a shell (10101), and the shell (10101) is a double-layer structure, and the shell (10101) is provided with an exhaust port (10102) at the top.

5. A shell and tube catalyst optimized synthesis column suitable for methanol synthesis as claimed in claim 1 wherein, The spray assembly (103) includes two water inlet rings (10301), and the water inlet rings (10301) are provided with water inlet interfaces (10305) on one side.

6. A shell-and-tube catalyst-optimized synthesis column suitable for methanol synthesis according to claim 5, characterized in that, The water inlet interfaces (10305) are arranged outside the shell assembly (101).

7. A shell-and-tube catalyst-optimized synthesis column suitable for methanol synthesis according to claim 6, characterized in that, The two water inlet rings (10301) are communicated with a plurality of communication pipes (10302), and the communication pipes (10302) are arranged in a ring array.

8. A shell-and-tube catalyst-optimized synthesis column suitable for methanol synthesis according to claim 7, characterized in that, The communication pipes (10302) are communicated with a plurality of spray rings (10303) on one side, and the spray rings (10303) in the same layer are communicated with each other. The spray rings (10303) are arranged outside the pipe bundles (10203), and the spray rings (10303) are fixedly installed with spray heads (10304) on the inner side.

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