Cold gas device for hydrogenation reactor

Abstract

The utility model belongs to reactor technical field, specifically is a kind of cold gas device for hydrogenation reactor, including reactor body;The reactor body top is fixed with feed pipe;The reactor body bottom is fixed with discharge pipe;The reactor body outer lateral wall is equipped with cold gas subassembly;The cold gas subassembly end is equipped with dismounting subassembly;The discharge pipe outer lateral wall is equipped with control component;The cold gas subassembly includes two cold gas covers;Two the cold gas covers are oppositely arranged;Two the cold gas covers are installed in reactor body outer lateral wall;Two the cold gas cover lateral wall is equipped with sealing component;The cold gas cover bottom is equipped with air inlet pipe;Through the above structure, the flow path of spiral is formed in cold gas cover by guiding cold gas, and this flow mode can increase the contact area and contact time of cold gas and reactor body outer lateral wall, to improve heat exchange efficiency, can make cold gas fully flow in limited space, make cooling more uniform.

Description

Technical Field

[0001] This utility model belongs to the field of reactor technology, specifically a cooling gas device for a hydrogenation reactor. Background Technology

[0002] Hydrogenation reactors are core equipment in chemical plants for processes such as hydrorefining, hydrocracking, and desulfurization of residual oil. Through the action of a catalyst, under high temperature, high pressure, and hydrogen-containing conditions, hydrogen is reacted with impurities in the feedstock oil to form removable products.

[0003] During operation, the hydrogenation reactor pre-treats the raw materials by desulfurization and decarbonization to remove impurities. The pre-treated raw materials are then mixed with hydrogen in a certain proportion to form a reactant. The mixed raw materials and hydrogen are then introduced into the reactor, where a hydrogenation reaction occurs on the catalyst surface. The reaction mainly takes place in the catalyst bed. The hydrogenation reaction is a strongly exothermic process, and the heat of reaction will raise the temperature of the catalyst bed. Usually, a jacket is added to introduce cold gas to absorb the heat of reaction. In the traditional cold gas cooling process, the medium flows freely in the jacket, which can easily lead to uneven flow of cold gas inside, insufficient cooling, and local overheating during the reaction process, causing equipment damage.

[0004] Therefore, this utility model provides a cooling gas device for a hydrogenation reactor. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A cooling gas device for a hydrogenation reactor, comprising a reactor body; a feed pipe fixedly connected to the top of the reactor body; a discharge pipe fixedly connected to the bottom of the reactor body; a cooling gas assembly installed on the outer wall of the reactor body; a disassembly assembly provided at the end of the cooling gas assembly; a flow control assembly provided on the outer wall of the discharge pipe; the cooling gas assembly includes two cooling gas hoods; the two cooling gas hoods are arranged opposite each other; the two cooling gas hoods are installed on the outer wall of the reactor body; a sealing assembly is provided on the side walls of the two cooling gas hoods; an air inlet pipe is installed at the bottom of the cooling gas hood; multiple air outlets are opened at the top of the cooling gas hood; multiple guide plates are fixedly connected to the inner wall of the cooling gas hood; two sets of guide plates... When joined, it forms a spiral shape; two guide plates are fixedly connected to the middle of a fixing rod; fans are fixedly connected to the ends of the two fixing rods; two mesh plates are fixedly connected to the ends of the fans; the two mesh plates are arranged opposite each other; a filter screen is fixedly connected to the middle of the air outlet; the above structure guides the cold air to form a spiral flow path within the cold air hood. This flow method can increase the contact area and contact time between the cold air and the outer wall of the reactor body, thereby improving the heat exchange efficiency, allowing the cold air to flow fully in a limited space, making the cooling more uniform, and making full use of the cold air during the cooling process, reducing energy waste. In conjunction with the fan, the cold air can be forced to flow, forming a stable air circulation, reducing the risk of equipment damage or safety accidents caused by excessive temperature during reactor operation.

[0007] Preferably, the flow control component includes a fixed cover; the fixed cover is fixedly connected to the middle of the discharge pipe; the fixed cover has multiple exhaust holes in the middle; the multiple exhaust holes are equidistantly distributed; a rotating plate is rotatably connected to the bottom of the fixed cover; multiple baffles are fixedly connected to the top of the rotating plate; a limit block is fixedly connected to the inner side wall of the fixed cover; a base is fixedly connected to the inner side wall of the rotating plate; the end of the air inlet pipe is fixedly connected to the bottom of the base; the end of the cold air cover is installed at the bottom of the multiple exhaust holes; the base is rotatably connected to the outer side wall of the discharge pipe; the above structure can control the cold air injection flow rate, reduce energy waste caused by excessive cold air supply, adjust the cold air volume according to actual needs, meet the cooling intensity requirements of different process stages, and reduce temperature fluctuations caused by insufficient or excessive cooling.

[0008] Preferably, the disassembly assembly includes two sets of mounting plates; the two sets of mounting plates are respectively located at the top and bottom of the air conditioner cover; the two mounting plates form a set; the two mounting plates are arranged opposite each other; a mounting groove is opened at the top of one end of each mounting plate; a mounting block is fixedly connected to the other end of the mounting plate; fastening bolts are installed in the middle of the mounting block and the bottom of the mounting groove; with the above structure, if the air conditioner cover is damaged or accumulates impurities during long-term use, maintenance personnel can quickly disassemble it for cleaning or replacement, which is convenient for daily cleaning and simple and convenient to operate.

[0009] Preferably, the sealing assembly includes a sealing gasket; the sealing gasket is fixed to one side of the cold gas hood; the sealing gasket has multiple positioning holes in its center; multiple positioning rods are fixed to the other side of the cold gas hood; the positioning rods are arranged corresponding to the positioning holes; the sealing assembly with the above structure can effectively fill the gap at the joint between the two cold gas hoods, reduce cold gas leakage, and reduce the entry of external moisture, impurities or corrosive gases into the cold gas hood, thereby reducing corrosion of the reactor body shell.

[0010] Preferably, a heat insulation cover is fixedly connected to the middle of the cold air cover; the heat insulation cover is fixedly connected to the outer wall of the cold air cover; the above structure can reduce the forced heat exchange between the cold air inside the cold air cover and the external temperature, maintain the temperature of the cold air inside the cold air cover, reduce the rapid loss of cold air, and keep the reaction temperature within a suitable range.

[0011] Preferably, an anti-slip pad is fixedly attached to the middle of the base; the anti-slip pad is fixedly attached to the outer side wall of the base; the above structure can increase the friction between the hand and the surface of the base, reduce slippage between the hand and the surface of the base, and effectively improve the comfort of the hand when rotating the base.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The cooling gas device for a hydrogenation reactor described in this utility model guides the cooling gas to form a spiral flow path within the cooling gas hood through the aforementioned structure. This flow pattern increases the contact area and contact time between the cooling gas and the outer wall of the reactor body, thereby improving heat exchange efficiency. It allows the cooling gas to flow fully within a limited space, resulting in more uniform cooling and full utilization of the cooling gas during the cooling process, reducing energy waste. Combined with a fan, it can force the cooling gas to flow, forming a stable air circulation and reducing the risk of equipment damage or safety accidents caused by excessively high temperatures during reactor operation.

[0014] 2. The cooling gas device for a hydrogenation reactor described in this utility model can control the injection flow rate of cooling gas through the above structure, reduce energy waste caused by excessive supply of cooling gas, adjust the amount of cooling gas according to actual needs, meet the cooling intensity requirements of different process stages, and reduce temperature fluctuations caused by insufficient or excessive cooling. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a cross-sectional view of the cooling shroud in this utility model;

[0018] Figure 3 This is an exploded view of the air conditioning component in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the central control component of this utility model;

[0020] Figure 5 This is a structural schematic diagram of the disassembly components in this utility model.

[0021] In the diagram: 1. Reactor body; 11. Feed pipe; 12. Discharge pipe; 2. Cooling gas assembly; 21. Cooling gas hood; 22. Inlet pipe; 23. Outlet; 24. Guide plate; 25. Fixing rod; 26. Fan; 27. Mesh plate; 28. Filter screen; 3. Quantity control assembly; 31. Fixing cover; 32. Exhaust port; 33. Limiting block; 34. Rotating plate; 35. Base; 36. Baffle; 4. Disassembly assembly; 41. Mounting plate; 42. Mounting groove; 43. Mounting block; 44. Fastening bolt; 5. Sealing assembly; 51. Sealing gasket; 52. Positioning hole; 53. Positioning rod; 6. Heat insulation cover; 7. Anti-slip pad. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 5As shown in the figure, a cooling gas device for a hydrogenation reactor according to an embodiment of the present invention includes a reactor body 1; a feed pipe 11 is fixedly connected to the top of the reactor body 1; a discharge pipe 12 is fixedly connected to the bottom of the reactor body 1; a cooling gas assembly 2 is installed on the outer wall of the reactor body 1; a disassembly assembly 4 is provided at the end of the cooling gas assembly 2; a flow control assembly 3 is provided on the outer wall of the discharge pipe 12; the cooling gas assembly 2 includes two cooling gas hoods 21; the two cooling gas hoods 21 are arranged opposite each other; the two cooling gas hoods 21 are installed on the outer wall of the reactor body 1; a sealing assembly 5 is provided on the side wall of the two cooling gas hoods 21; an air inlet pipe 22 is installed at the bottom of the cooling gas hood 21; and the top of the cooling gas hood 21 is open. Multiple air outlets 23 are provided; multiple guide plates 24 are fixed to the inner wall of the cooling hood 21; when the two sets of guide plates 24 are attached, they form a spiral shape; a fixing rod 25 is fixed to the middle of two guide plates 24; a fan 26 is fixed to the end of the two fixing rods 25; two mesh plates 27 are fixed to the end of the fan 26; the two mesh plates 27 are arranged opposite each other; a filter screen 28 is fixed to the middle of the air outlets 23; during operation, the two cooling hoods 21 are installed on the outer wall of the reactor body 1 by disassembling the assembly 4, and the two sets of guide plates 24 form a spiral shape when attached. During the use of the reactor body 1, hydrogen and raw material oil are first introduced from the feed pipe 1 in a certain proportion. 1. The gas enters and is evenly distributed on the catalyst in the reactor body 1 through the inlet distributor. A reaction occurs in the catalyst bed. When an exothermic reaction occurs, cold gas is injected from the end of the inlet pipe 22. The amount of cold gas continuously discharged is controlled by the flow control component 3, which controls the fan 26 to turn on. The fan 26 draws in air from one end and discharges it in the other direction. The cold gas flows continuously through the bottom of the cold gas hood 21 and is guided by the guide plate 24. The guide plate 24 increases the contact area and contact time of the cold gas, transferring it to the surface of the reactor body 1. Through heat exchange, the internal temperature of the reactor body 1 decreases. When the cold gas is discharged towards the top of the cold gas hood 21, it passes through multiple... The air is discharged through the filter screen 28. When the airflow passes through the fan 26, impurities in the gas are intercepted by the mesh plate 27. The above structure guides the cold air to form a spiral flow path in the cold air hood 21. This flow mode can increase the contact area and contact time between the cold air and the outer wall of the reactor body 1, thereby improving the heat exchange efficiency. It can make the cold air flow fully in a limited space, making the cooling more uniform and making full use of the cold air during the cooling process, reducing energy waste. In conjunction with the fan 26, it can force the cold air to flow and form a stable air circulation, reducing the risk of equipment damage or safety accidents caused by excessive temperature during the operation of the reactor body 1.

[0024] like Figure 1 and Figure 4As shown, the quantity control component 3 includes a fixed cover 31; the fixed cover 31 is fixedly connected to the middle of the discharge pipe 12; multiple exhaust holes 32 are opened in the middle of the fixed cover 31; the multiple exhaust holes 32 are equidistantly distributed; a rotating plate 34 is rotatably connected to the bottom of the fixed cover 31; multiple baffles 36 are fixedly connected to the top of the rotating plate 34; a limit block 33 is fixedly connected to the inner wall of the fixed cover 31; a base 35 is fixedly connected to the inner wall of the rotating plate 34; the end of the air inlet pipe 22 is fixedly connected to the bottom of the base 35; the end of the cold air cover 21 is installed at the bottom position of the multiple exhaust holes 32; the base 35 is rotatably connected to the outer wall of the discharge pipe 12; during operation, when cold air enters through the end of the air inlet pipe 22, the cold air enters the interior of the fixed cover 31 and passes through the multiple exhaust holes 32. 2. The cold air is discharged into the cold air hood 21. When a small amount of discharge is required, the rotating plate 34 is rotated and the base 35 rotates in the middle of the discharge pipe 12. The limiting block 33 limits the baffle 36. At this time, multiple baffles 36 rotate to the corresponding exhaust hole 32 position. The baffles 36 block part of the exhaust hole 32, and the cold air is discharged through the remaining exhaust hole 32. When a large amount of cold air needs to be discharged, the rotating plate 34 is rotated in the opposite direction to reset. The above structure can control the cold air injection flow rate, reduce energy waste caused by excessive cold air supply, adjust the cold air volume according to actual needs, meet the cooling intensity requirements of different process stages, and reduce temperature fluctuations caused by insufficient or excessive cooling.

[0025] like Figure 2 and Figure 5 As shown, the disassembly assembly 4 includes two sets of mounting plates 41; the two sets of mounting plates 41 are respectively set at the top and bottom of the air conditioning cover 21; the two mounting plates 41 form a set; the two mounting plates 41 are arranged opposite each other; a mounting groove 42 is opened at the top of one end of the mounting plate 41; a mounting block 43 is fixedly connected to the other end of the mounting plate 41; a fastening bolt 44 is installed in the middle of the mounting block 43 and at the bottom of the mounting groove 42; during operation, when the two air conditioning covers 21 are installed, the side walls of the two air conditioning covers 21 are tightly fitted by the sealing assembly 5, the two mounting blocks 43 enter the corresponding mounting groove 42, and the fastening bolt 44 is rotated so that its end enters the bottom of the mounting groove 42, and the two mounting plates 41 are fixed by the fastening bolt 44. After the air conditioning covers 21 have been used for a period of time, the two air conditioning covers 21 can be disassembled and cleaned, and the two mounting plates 41 can be quickly disassembled by unscrewing the fastening bolt 44. With the above structure, if the air conditioning cover 21 is damaged or has accumulated impurities during long-term use, maintenance personnel can quickly disassemble it for cleaning or replacement, which is convenient for daily cleaning and simple and convenient to operate.

[0026] like Figure 5As shown, the sealing assembly 5 includes a sealing gasket 51; the sealing gasket 51 is fixed to one side of the cooling gas hood 21; multiple positioning holes 52 are opened in the middle of the sealing gasket 51; multiple positioning rods 53 are fixed to the other side of the cooling gas hood 21; the positioning rods 53 are correspondingly arranged with respect to the positioning holes 52; during operation, when the two cooling gas hoods 21 are installed, the multiple positioning rods 53 in the side wall of the cooling gas hood 21 correspond to the positions of the positioning holes 52, the positioning rods 53 enter the interior of the positioning holes 52, and fill the gap between the two cooling gas hoods 21 through the sealing gasket 51, so that the side wall of the cooling gas hood 21 is sealed. Through the above-mentioned structure, the sealing assembly 5 can effectively fill the gap at the joint between the two cooling gas hoods 21, reduce the leakage of cold air, and reduce the entry of external moisture, impurities or corrosive gases into the interior of the cooling gas hood 21, thereby reducing corrosion of the outer shell of the reactor body 1.

[0027] like Figure 3 As shown, a heat insulation cover 6 is fixedly connected to the middle of the cold gas cover 21; the heat insulation cover 6 is fixedly connected to the outer wall of the cold gas cover 21; during operation, when the cold gas enters between the cold gas cover 21 and the reactor body 1, the external temperature is isolated by the heat insulation cover 6. The above structure can reduce the forced heat exchange between the cold gas inside the cold gas cover 21 and the external temperature, maintain the temperature of the cold gas inside the cold gas cover 21, reduce the rapid loss of cold gas, and keep the reaction temperature within a suitable range.

[0028] like Figure 4 As shown, an anti-slip pad 7 is fixedly attached to the middle of the base 35; the anti-slip pad 7 is fixedly attached to the outer wall of the base 35; during operation, when the base 35 is rotated to control the amount of cold air discharged, the hand makes flexible contact with the anti-slip pad 7. The flexibility of the anti-slip pad 7 conforms to the hand structure. Through the above structure, the friction between the hand and the surface of the base 35 can be increased, the slippage between the hand and the surface of the base 35 can be reduced, and the comfort of the hand when rotating the base 35 can be effectively improved.

[0029] During operation, two cooling gas hoods 21 are installed on the outer wall of the reactor body 1 by disassembling component 4. When the two sets of guide plates 24 are attached, they form a spiral shape. During the use of the reactor body 1, hydrogen and feed oil are first introduced into the reactor body 1 in a certain proportion through the feed pipe 11. After passing through the inlet distributor, they are evenly distributed on the catalyst in the reactor body 1, where a reaction occurs. When an exothermic reaction occurs, cooling gas is injected from the end of the inlet pipe 22. The amount of cooling gas continuously discharged is controlled by the flow control component 3, which controls the fan 26 to turn on. The fan 26 draws in airflow from one end and discharges it in the other direction. The cooling gas passes through the cooling gas hood 21. The cold air flows continuously from the bottom through the guide plate 24, increasing the contact area and time of the cold air. The cold air is transferred to the surface of the reactor body 1, where heat exchange reduces the internal heat. As the cold air exits towards the top of the cold air hood 21, it passes through multiple filters 28. When the airflow passes through the fan 26, impurities in the gas are intercepted by the mesh plate 27. When the cold air enters through the end of the inlet pipe 22, it enters the fixed hood 31 and is discharged into the cold air hood 21 through multiple exhaust holes 32. For small-volume discharges, the rotating plate 34 is rotated, and the base 35 rotates in the middle of the discharge pipe 12. Limiting block 33 limits the baffle 36. At this time, multiple baffles 36 rotate to the corresponding exhaust port 32 position, blocking part of the exhaust port 32. Cold air is discharged through the remaining exhaust port 32. When a large amount of cold air needs to be discharged, the rotating plate 34 can be rotated in the opposite direction to reset. When installing the two air conditioning covers 21, the side walls of the two air conditioning covers 21 are tightly fitted by the sealing component 5. The two mounting blocks 43 enter the corresponding mounting grooves 42. The fastening bolts 44 are rotated so that their ends enter the bottom of the mounting grooves 42. The two mounting plates 41 are fixed by the fastening bolts 44. After the air conditioning covers 21 have been used for a period of time... Disassemble and clean the two cold air covers 21, unscrew the fastening bolts 44 and quickly disassemble the two mounting plates 41. When the two cold air covers 21 are installed, the multiple positioning rods 53 in the side wall of the cold air cover 21 correspond to the positioning holes 52. The positioning rods 53 enter the interior of the positioning holes 52 and fill the gap between the two cold air covers 21 through the sealing gasket 51, so that the side wall of the cold air cover 21 is sealed. When the cold air enters between the cold air cover 21 and the reactor body 1, the external temperature is isolated by the heat insulation cover 6. When the base 35 is rotated to control the amount of cold air discharged, the hand makes flexible contact with the anti-slip pad 7. The flexibility of the anti-slip pad 7 fits the hand structure.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cold gas device for a hydrogenation reactor, comprising a reactor body (1); characterized in that: The reactor body (1) is fixedly connected to the top of the feed pipe (11); the reactor body (1) is fixedly connected to the bottom of the discharge pipe (12); a cooling gas assembly (2) is installed on the outer wall of the reactor body (1); a disassembly assembly (4) is provided at the end of the cooling gas assembly (2); and a flow control assembly (3) is provided on the outer wall of the discharge pipe (12).

2. The cooling gas device for a hydrogenation reactor according to claim 1, characterized in that: The cooling gas assembly (2) includes two cooling gas hoods (21); the two cooling gas hoods (21) are arranged opposite each other; the two cooling gas hoods (21) are installed on the outer side wall of the reactor body (1); the side walls of the two cooling gas hoods (21) are provided with sealing components (5); an air inlet pipe (22) is installed at the bottom of the cooling gas hood (21); multiple air outlets (23) are opened at the top of the cooling gas hood (21); multiple guide plates (24) are fixed to the inner side wall of the cooling gas hood (21); the two sets of guide plates (24) are spiral-shaped when they are attached; a fixing rod (25) is fixed to the middle of the two guide plates (24); a fan (26) is fixed to the end of the two fixing rods (25); two mesh plates (27) are fixed to the end of the fan (26); the two mesh plates (27) are arranged opposite each other; a filter screen (28) is fixed to the middle of the air outlet (23).

3. A cooling gas device for a hydrogenation reactor according to claim 2, characterized in that: The quantity control component (3) includes a fixed cover (31); the fixed cover (31) is fixedly connected to the middle of the discharge pipe (12); the fixed cover (31) has multiple exhaust holes (32) in the middle; the multiple exhaust holes (32) are equidistantly distributed; a rotating plate (34) is rotatably connected to the bottom of the fixed cover (31); multiple baffles (36) are fixedly connected to the top of the rotating plate (34); a limit block (33) is fixedly connected to the inner wall of the fixed cover (31); a base (35) is fixedly connected to the inner wall of the rotating plate (34); the end of the air inlet pipe (22) is fixedly connected to the bottom of the base (35); the end of the cold air cover (21) is installed at the bottom of the multiple exhaust holes (32); the base (35) is rotatably connected to the outer wall of the discharge pipe (12).

4. A cooling gas device for a hydrogenation reactor according to claim 2, characterized in that: The disassembly assembly (4) includes two sets of mounting plates (41); the two sets of mounting plates (41) are respectively set at the top and bottom of the air conditioning hood (21); the two mounting plates (41) form a set; the two mounting plates (41) are arranged opposite each other; a mounting groove (42) is opened at the top of one end of the mounting plate (41); a mounting block (43) is fixedly connected to the other end of the mounting plate (41); fastening bolts (44) are installed in the middle of the mounting block (43) and at the bottom of the mounting groove (42).

5. A cooling gas device for a hydrogenation reactor according to claim 2, characterized in that: The sealing assembly (5) includes a sealing gasket (51); the sealing gasket (51) is fixed to one side of the air conditioning hood (21); a plurality of positioning holes (52) are provided in the middle of the sealing gasket (51); a plurality of positioning rods (53) are fixed to the other side of the air conditioning hood (21); the positioning rods (53) are provided in correspondence with the positioning holes (52).

6. A cooling gas device for a hydrogenation reactor according to claim 2, characterized in that: A heat insulation cover (6) is fixedly connected to the middle of the air conditioning cover (21); the heat insulation cover (6) is fixedly connected to the outer wall of the air conditioning cover (21).

7. A cooling gas device for a hydrogenation reactor according to claim 3, characterized in that: An anti-slip pad (7) is fixedly connected to the middle of the base (35); the anti-slip pad (7) is fixedly connected to the outer side wall of the base (35).

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