Temperature-adjustable alkylation reactor

Abstract

The utility model relates to the technical field of reactors, and discloses a temperature-adjustable alkylation reactor which comprises an alkylation reaction tank body, a cold circulation mechanism; the cold circulation mechanism comprises a water tank A; the cold circulation mechanism further comprises a cooling tube bundle assembly. And a thermal cycle mechanism. The heat cycle mechanism comprises a water tank B; a plurality of heating coils are fixedly mounted at the bottom of the water tank B; the heat cycle mechanism further comprises a heating tube bundle assembly. According to the alkylation reaction tank, when cold water enters the cooling tube bundle assembly, the cooling tube bundle assembly can absorb heat in the alkylation reaction tank body and realize heat exchange, so that the reaction temperature in the alkylation reaction tank body can be effectively reduced; heat of the heating tube bundle assembly can be fused into the inner cavity of the alkylation reaction tank body, so that the reaction temperature in the alkylation reaction tank body is increased, and the reaction temperature in the alkylation reaction tank body can be adjusted through the cold circulation mechanism and the heat circulation mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to an alkylation reactor with adjustable temperature. Background Art

[0002] In the production process of alkylbenzene, HF (hydrogen fluoride) is often used as a catalyst for the alkylation reaction, the reactants are benzene and olefins, and the reaction product is alkylbenzene. In the traditional process, the reactants and catalyst are mixed outside the reactor through a static mixer, and after the mixing reaction, they enter the heat exchanger for cooling, and then enter the reactor for full reaction. Then the reaction product and catalyst enter the horizontal separation tank, and the polar HF solution and the non-polar hydrocarbon mixture are separated by gravity. The separated HF is then transported to the static mixer by an acid pump for recycling.

[0003] The Chinese utility model patent with the announcement number CN220345785U discloses a novel multi-channel alkylation reactor, comprising:

[0004] Alkylation reactor body;

[0005] A reactant outlet is installed at the top of the alkylation reactor body;

[0006] A reactant inlet is installed on the outer wall of the alkylation reactor body, a connecting pipe is installed at one end of the reactant inlet, a receiving pipe is installed at one end of the connecting pipe, and two inlet pipes are installed on the outer wall of the receiving pipe;

[0007] A valve body is installed on the outer walls of the two inlet pipes;

[0008] Two semi-fixed rings are arranged on the outer wall of the reactant inlet, and the two semi-fixed rings are arranged at the connection between the reactant inlet and the connecting pipe;

[0009] Connecting ears are fixed on the outer walls of the two semi-fixed rings;

[0010] A threaded hole is provided at one end of the connecting ear;

[0011] The two semi-fixed rings are connected through threaded holes and fixing bolts.

[0012] However, although the novel multi-channel alkylation reactor disclosed in the patent can solve the technical problem of the prior art that the alkylation reactor has only one reactant inlet, the novel multi-channel alkylation reactor disclosed in the patent cannot adjust the temperature inside it.

[0013] Based on this, a temperature-adjustable alkylation reactor is now proposed. Utility Model Content

[0014] 1. Technical issues to be resolved

[0015] In view of the shortcomings of the prior art, the utility model provides a temperature-adjustable alkylation reactor to solve the problem raised in the background technology that the alkylation reactor in the prior art cannot adjust the temperature inside thereof.

[0016] (II) Technical solution

[0017] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0018] A temperature-adjustable alkylation reactor, comprising:

[0019] An alkylation reaction tank body, wherein the bottom of the alkylation reaction tank body has a reactant feed port, and the top of the alkylation reaction tank body has a reactant discharge port;

[0020] A cold circulation mechanism, wherein the cold circulation mechanism is installed on the alkylation reaction tank body;

[0021] Wherein, the cold circulation mechanism comprises a water tank A, which is arranged on one side of the alkylation reaction tank body, a water pump A is fixedly installed on the top of the water tank A, the water inlet end of the water pump A is connected with a water pumping pipe A, the free end of the water pumping pipe A is located in the inner cavity of the water tank A, the water outlet end of the water pump A is connected with a water delivery pipe A, the free end of the water delivery pipe A extends upward, the bottom of the water tank A is connected with a water return pipe A, the free end of the water return pipe A extends downward;

[0022] The cold circulation mechanism also includes a cooling tube bundle assembly, which is installed on one side of the inner cavity of the alkylation reaction tank body;

[0023] The free ends of the water delivery pipe A and the water return pipe A are respectively connected to the two ends of the cooling tube bundle assembly; and

[0024] A thermal cycle mechanism, wherein the thermal cycle mechanism is installed on the alkylation reaction tank;

[0025] Wherein, the thermal circulation mechanism comprises a water tank B, which is arranged on the other side of the alkylation reaction tank body, a water pump B is fixedly installed on the top of the water tank B, the water inlet end of the water pump B is connected with a water pumping pipe B, the free end of the water pumping pipe B is located in the inner cavity of the water tank B, the water outlet end of the water pump B is connected with a water delivery pipe B, the free end of the water delivery pipe B extends upward, the bottom of the water tank B is connected with a water return pipe B, the free end of the water return pipe B extends downward;

[0026] A plurality of heating coils are fixedly installed at the bottom of the water tank B, and the plurality of heating coils are distributed circumferentially at the bottom of the water pumping pipe B;

[0027] The thermal cycle mechanism also includes a heating tube bundle assembly, which is installed on the other side of the inner cavity of the alkylation reaction tank body;

[0028] Wherein, the cooling tube bundle assembly and the heating tube bundle assembly are symmetrically arranged;

[0029] The free ends of the water delivery pipe B and the water return pipe B are respectively connected to the two ends of the heating tube bundle assembly.

[0030] Preferably, the cooling tube bundle assembly comprises an upper arc-shaped water tank A fixedly mounted on the upper part of the inner cavity of the alkylation reaction tank body and a lower arc-shaped water tank A fixedly mounted on the lower part of the inner cavity of the alkylation reaction tank body, and a plurality of cooling tubes A are fixedly mounted between the upper arc-shaped water tank A and the lower arc-shaped water tank A, and each of the cooling tubes A is connected to the upper arc-shaped water tank A and the lower arc-shaped water tank A;

[0031] A water inlet pipe A is fixedly installed on the top of the upper arc-shaped water tank A, and the water inlet pipe A is connected to the upper arc-shaped water tank A. One end of the top of the water inlet pipe A penetrates upward through the top of the alkylation reaction tank body;

[0032] A drain pipe A is fixedly installed at the bottom of the lower arc-shaped water tank A. The drain pipe A is connected to the lower arc-shaped water tank A. One end of the bottom of the drain pipe A penetrates downwardly through the bottom of the alkylation reaction tank body.

[0033] The free end of the water delivery pipe A is connected to the water inlet pipe A, and the free end of the water return pipe A is connected to the drain pipe A.

[0034] Preferably, the free end of the water pumping pipe A passes downward through the top of the water tank A and extends to the bottom of the inner cavity of the water tank A.

[0035] Preferably, each of the cooling tubes A is spiral-shaped.

[0036] Preferably, the heating tube bundle assembly comprises an upper arc-shaped water tank B fixedly mounted on the upper part of the inner cavity of the alkylation reaction tank body and a lower arc-shaped water tank B fixedly mounted on the lower part of the inner cavity of the alkylation reaction tank body, and a plurality of cooling tubes B are fixedly mounted between the upper arc-shaped water tank B and the lower arc-shaped water tank B, and each of the cooling tubes B is connected to the upper arc-shaped water tank B and the lower arc-shaped water tank B;

[0037] A water inlet pipe B is fixedly installed on the top of the upper arc-shaped water tank B. The water inlet pipe B is connected to the upper arc-shaped water tank B. One end of the top of the water inlet pipe B penetrates upward through the top of the alkylation reaction tank body.

[0038] A drain pipe B is fixedly installed at the bottom of the lower arc-shaped water tank B. The drain pipe B is connected to the lower arc-shaped water tank B. One end of the bottom of the drain pipe B penetrates downwardly through the bottom of the alkylation reaction tank body.

[0039] The free end of the water delivery pipe B is connected to the water inlet pipe B, and the free end of the water return pipe B is connected to the drainage pipe B.

[0040] Preferably, the free end of the water pumping pipe B passes downward through the top of the water tank B and extends to the bottom of the inner cavity of the water tank B.

[0041] Preferably, each of the cooling tubes B is spiral-shaped.

[0042] Preferably, a heat dissipation component is also installed on the alkylation reaction tank;

[0043] The heat dissipation assembly comprises a symmetrically arranged arc-shaped heat dissipation jacket A and an arc-shaped heat dissipation jacket B, wherein the arc-shaped heat dissipation jacket A and the arc-shaped heat dissipation jacket B are both clamped and installed on the side wall of the alkylation reaction tank body;

[0044] The side wall of the arc-shaped heat dissipation jacket A is provided with a plurality of heat dissipation holes A, and the side wall of the arc-shaped heat dissipation jacket B is provided with a plurality of heat dissipation holes B;

[0045] The upper and lower parts between the arc-shaped heat dissipation jacket A and the arc-shaped heat dissipation jacket B are fixedly installed with clamps.

[0046] Preferably, a dual-channel feeding structure is detachably mounted on the reactant feeding port.

[0047] Preferably, the dual-channel feeding structure comprises an inverted T-shaped feeding pipe, the discharge end of the inverted T-shaped feeding pipe is plugged and installed in the reactant feeding port, and the ends of the two branches of the inverted T-shaped feeding pipe are fixedly installed with blocking plates;

[0048] Feed branches are fixedly installed on the two branches of the inverted T-shaped feed pipe, and the two feed branches are connected to the corresponding branches of the inverted T-shaped feed pipe;

[0049] Valves are fixedly installed on the two feed branches.

[0050] Beneficial effects:

[0051] The utility model provides a temperature-adjustable alkylation reactor, which has the following beneficial effects:

[0052] 1. In the present invention, when the reactants enter the alkylation reaction tank body for reaction, in order to adjust the reaction temperature in the alkylation reaction tank body and reduce the reaction temperature in the alkylation reaction tank body, the water pump A is started, and the water pump A can pump out the water in the water tank A through the pumping pipe A, and transport the water to the cooling tube bundle assembly through the water delivery pipe A, and then the water flows back to the water tank A from the cooling tube bundle assembly, so as to form a reciprocating cycle;

[0053] When cold water enters the cooling tube bundle assembly, the cooling tube bundle assembly can absorb the heat inside the alkylation reaction tank body and realize heat exchange, so that the reaction temperature inside the alkylation reaction tank body can be effectively reduced.

[0054] 2. In the present invention, when the reaction temperature in the alkylation reaction tank needs to be increased, each heating coil is energized, and multiple heating coils are used to heat the water in the water tank B, and the water pump B is started. The water pump B can pump out the hot water in the water tank B through the pumping pipe B, and transport it to the heating tube bundle assembly through the water delivery pipe B, and then return it to the water tank B from the heating tube bundle assembly, so as to repeat the cycle;

[0055] When hot water enters the heating tube bundle assembly, the heat of the heating tube bundle assembly can be integrated into the inner cavity of the alkylation reaction tank body, thereby increasing the reaction temperature in the alkylation reaction tank body.

[0056] 3. In the present invention, the reaction temperature in the alkylation reaction tank can be adjusted by the mutual cooperation between the cold circulation mechanism and the heat circulation mechanism.

[0057] 4. In the present invention, each cooling tube A is spiral-shaped. The spiral cooling tube A can increase the residence time of water. When the residence time of water in the cooling tube A is longer, the temperature inside the alkylation reaction tank can be better taken away to achieve heat exchange.

[0058] 5. In the present invention, each cooling tube B is spirally shaped. The spiral cooling tube B can increase the residence time of hot water. When the residence time of hot water in the cooling tube A is longer, it can better release heat to the inside of the alkylation reaction tank to further increase the temperature inside the alkylation reaction tank.

[0059] 6. In the present invention, the heat dissipation assembly composed of the arc-shaped heat dissipation jacket A and the arc-shaped heat dissipation jacket B can dissipate heat from the outside of the alkylation reaction tank, and a plurality of heat dissipation holes A and heat dissipation holes B can further improve the heat dissipation efficiency;

[0060] The two clamps can clamp and fix the arc-shaped heat dissipation jacket A and the arc-shaped heat dissipation jacket B. At the same time, the two clamps can also be easily disassembled. When the two clamps are disassembled, the arc-shaped heat dissipation jacket A and the arc-shaped heat dissipation jacket B can be disassembled at the same time.

[0061] 7. In the present invention, in order to improve the convenience of feeding into the alkylation reaction tank, a dual-channel feeding structure is installed on the reactant feeding port of the alkylation reaction tank. The dual-channel feeding structure can be conveniently installed and disassembled by plugging and matching the inverted T-shaped feeding pipe with the reactant feeding port. At the same time, the inverted T-shaped feeding pipe is also provided with two feeding branches, each of which has a valve. In daily use, only one of the feeding branches needs to be used, and the valve on the corresponding feeding branch is kept open, and the valve on the other feeding branch is closed.

[0062] When one of the feed branches is damaged, close the valve on the damaged feed branch.

[0063] Then open the valve on the other feed branch. At this time, the other feed branch can maintain the normal use of the reactor. Compared with the existing ones, the reactor is provided with two feed branches. After one of the feed branches is damaged, the other feed branch can still be used normally to avoid affecting the working progress of the alkylation reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0065] Figure 2 It is a three-dimensional schematic diagram of a partial cross section of the utility model;

[0066] Figure 3 It is a three-dimensional schematic diagram of a combination of a water tank A, a water pump A, a water pump pipe A, a water delivery pipe A and a water return pipe A of the utility model;

[0067] Figure 4 It is a three-dimensional schematic diagram of a combination of a water tank B, a water pump B, a water pump pipe B, a water delivery pipe B, a water return pipe B and a heating coil of the utility model;

[0068] Figure 5 It is a three-dimensional schematic diagram of a partial cross section of the alkylation reaction tank body, the cooling tube bundle assembly, and the dual-channel feed structure of the utility model;

[0069] Figure 6 It is a three-dimensional schematic diagram of the cold cycle mechanism of the utility model;

[0070] Figure 7 It is a three-dimensional schematic diagram of the thermal cycle mechanism of the utility model;

[0071] Figure 8 It is a three-dimensional schematic diagram of the present invention when viewed from above;

[0072] Fig. 9 It is a three-dimensional schematic diagram of the heat dissipation component of the utility model.

[0073] In the figure: 10, alkylation reaction tank; 1001, reactant feed port; 1002, reactant discharge port; 20, cold circulation mechanism; 2001, water tank A; 2002, water pump A; 2003, water extraction pipe A; 2004, water delivery pipe A; 2005, water return pipe A; 2006, cooling tube bundle assembly; 20061, upper arc-shaped water tank A; 20062, lower arc-shaped water tank A; 20063, cooling pipe A; 20064, water inlet pipe A; 20065, drain pipe A; 30, heat circulation mechanism; 3001, water tank B; 3002, water pump B; 3003, water extraction pipe B; 3004, delivery pipe Water pipe B; 3005, return pipe B; 3006, heating coil; 3007, heating tube bundle assembly; 30071, upper arc water tank B; 30072, lower arc water tank B; 30073, cooling pipe B; 30074, water inlet pipe B; 30075, drain pipe B; 40, heat dissipation assembly; 4001, arc-shaped heat dissipation jacket A; 40011, heat dissipation hole A; 4002, arc-shaped heat dissipation jacket B; 40021, heat dissipation hole B; 4003, clamp; 50, double-channel feed structure; 5001, inverted T-type feed pipe; 50011, sealing plate; 5002, feed branch; 5003, valve. DETAILED DESCRIPTION

[0074] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0075] Embodiment 1

[0076] In the production process of alkylbenzene, HF (hydrogen fluoride) is often used as a catalyst for the alkylation reaction, the reactants are benzene and olefins, and the reaction product is alkylbenzene. In the traditional process, the reactants and catalyst are mixed outside the reactor through a static mixer, and after the mixing reaction, they enter the heat exchanger for cooling, and then enter the reactor for full reaction. Then the reaction product and catalyst enter the horizontal separation tank, and the polar HF solution and the non-polar hydrocarbon mixture are separated by gravity. The separated HF is then transported to the static mixer by an acid pump for recycling.

[0077] Chinese utility model patent with announcement number CN220345785U discloses a novel multi-channel alkylation reactor.

[0078] However, although the novel multi-channel alkylation reactor disclosed in the patent can solve the technical problem of the prior art that the alkylation reactor has only one reactant inlet, the novel multi-channel alkylation reactor disclosed in the patent cannot adjust the temperature inside it.

[0079] Based on this, in order to solve the above technical problems, the following technical solutions are now adopted, as follows:

[0080] like Figure 1-2 as well as Figure 6 As shown, the utility model provides a technical solution:

[0081] A temperature-adjustable alkylation reactor, comprising:

[0082] The alkylation reaction tank body 10 has a reactant feed port 1001 at the bottom and a reactant discharge port 1002 at the top.

[0083] The reactant feed port 1001 is used for feeding reactants, the reactant discharge port 1002 is used for discharging reactants, and the alkylation reaction tank 10 is used for reactants to react therein;

[0084] A cold circulation mechanism 20, which is installed on the alkylation reaction tank body 10;

[0085] The cold circulation mechanism 20 includes a water tank A2001, which is filled with water. The water tank A2001 is arranged on one side of the alkylation reaction tank body 10. A water pump A2002 is fixedly installed on the top of the water tank A2001. The water inlet end of the water pump A2002 is connected with a water pumping pipe A2003. The free end of the water pumping pipe A2003 is located in the inner cavity of the water tank A2001. The water outlet end of the water pump A2002 is connected with a water delivery pipe A2004. The free end of the water delivery pipe A2004 extends upward. The bottom of the water tank A2001 is connected with a return pipe A2005. The free end of the return pipe A2005 extends downward.

[0086] Specifically, the free end of the water pumping pipe A2003 passes through the top of the water tank A2001 downwards and extends to the bottom of the inner cavity of the water tank A2001;

[0087] Among them, Figure 1 As shown, the top of the water tank A2001 has a water inlet;

[0088] The cold circulation mechanism 20 further includes a cooling tube bundle assembly 2006, which is installed on one side of the inner cavity of the alkylation reaction tank body 10;

[0089] The free ends of the water delivery pipe A2004 and the water return pipe A2005 are respectively connected to the two ends of the cooling tube bundle assembly 2006; and

[0090] A thermal cycle mechanism 30, which is installed on the alkylation reaction tank body 10;

[0091] The heat circulation mechanism 30 includes a water tank B3001, which is also filled with water. The water tank B3001 is arranged on the other side of the alkylation reaction tank 10. A water pump B3002 is fixedly installed on the top of the water tank B3001. The water inlet end of the water pump B3002 is connected to a water pumping pipe B3003. The free end of the water pumping pipe B3003 is located in the inner cavity of the water tank B3001. The water outlet end of the water pump B3002 is connected to a water delivery pipe B3004. The free end of the water delivery pipe B3004 extends upward. The bottom of the water tank B3001 is connected to a water return pipe B3005. The free end of the water return pipe B3005 extends downward.

[0092] Specifically, the free end of the water pumping pipe B3003 passes through the top of the water tank B3001 downwards and extends to the bottom of the inner cavity of the water tank B3001;

[0093] A plurality of heating coils 3006 are fixedly installed at the bottom of the water tank B3001, and the plurality of heating coils 3006 are distributed circumferentially at the bottom of the water pumping pipe B3003;

[0094] Among them, Figure 1 As shown, the top of the water tank B3001 also has a water inlet;

[0095] The thermal cycle mechanism 30 further includes a heating tube bundle assembly 3007, which is installed on the other side of the inner cavity of the alkylation reaction tank body 10;

[0096] The cooling tube bundle assembly 2006 and the heating tube bundle assembly 3007 are symmetrically arranged;

[0097] The free ends of the water supply pipe B3004 and the return pipe B3005 are respectively connected to the two ends of the heating tube bundle assembly 3007.

[0098] In this embodiment, when the reactants enter the alkylation reaction tank 10 for reaction, in order to adjust the reaction temperature in the alkylation reaction tank 10 and reduce the reaction temperature in the alkylation reaction tank 10, the water pump A2002 is started, and the water pump A2002 can pump out the water in the water tank A2001 through the pumping pipe A2003, and transport the water to the cooling tube bundle assembly 2006 through the water delivery pipe A2004, and then the water flows back to the water tank A2001 from the cooling tube bundle assembly 2006, so as to form a reciprocating cycle;

[0099] When cold water enters the cooling tube bundle assembly 2006 , the cooling tube bundle assembly 2006 can absorb the heat inside the alkylation reaction tank body 10 and realize heat exchange, so that the reaction temperature inside the alkylation reaction tank body 10 can be effectively reduced.

[0100] When the cold cycle mechanism 20 is working, the hot cycle mechanism 30 is not working.

[0101] When the reaction temperature in the alkylation reaction tank 10 needs to be increased, each heating coil 3006 is energized, and the multiple heating coils 3006 heat the water in the water tank B3001, and the water pump B3002 is started. The water pump B3002 can pump out the hot water in the water tank B3001 through the pumping pipe B3003, and transport it to the heating tube bundle assembly 3007 through the water delivery pipe B3004, and then return it to the water tank B3001 from the heating tube bundle assembly 3007, so as to repeat the cycle.

[0102] When hot water enters the heating tube bundle assembly 3007 , the heat of the heating tube bundle assembly 3007 can be integrated into the inner cavity of the alkylation reaction tank body 10 , thereby increasing the reaction temperature in the alkylation reaction tank body 10 .

[0103] When the heat circulation mechanism 30 is working, the cold circulation mechanism 20 is not working.

[0104] Therefore, the reaction temperature in the alkylation reaction tank 10 can be adjusted by the cooperation between the cold cycle mechanism 20 and the hot cycle mechanism 30 .

[0105] Embodiment 2

[0106] like Figure 3 as well as Figure 5-6 As shown, based on the first embodiment, the following improvements are made:

[0107] Furthermore, the cooling tube bundle assembly 2006 includes an upper arc-shaped water tank A20061 fixedly installed at the upper part of the inner cavity of the alkylation reaction tank body 10 and a lower arc-shaped water tank A20062 fixedly installed at the lower part of the inner cavity of the alkylation reaction tank body 10, and a plurality of cooling tubes A20063 are fixedly installed between the upper arc-shaped water tank A20061 and the lower arc-shaped water tank A20062, and each cooling tube A20063 is connected to the upper arc-shaped water tank A20061 and the lower arc-shaped water tank A20062;

[0108] A water inlet pipe A20064 is fixedly installed on the top of the upper arc-shaped water tank A20061. The water inlet pipe A20064 is connected to the upper arc-shaped water tank A20061. One end of the top of the water inlet pipe A20064 penetrates upwardly through the top of the alkylation reaction tank body 10.

[0109] A drainage pipe A20065 is fixedly installed at the bottom of the lower arc-shaped water tank A20062. The drainage pipe A20065 is connected to the lower arc-shaped water tank A20062. One end of the bottom of the drainage pipe A20065 penetrates downwardly through the bottom of the alkylation reaction tank body 10.

[0110] The free end of the water supply pipe A2004 is connected to the water inlet pipe A20064, and the free end of the return pipe A2005 is connected to the drainage pipe A20065.

[0111] In this embodiment, the water in the water supply pipe A2004 can enter the upper arc-shaped water tank A20061 through the water inlet pipe A20064. The water entering the upper arc-shaped water tank A20061 can enter each cooling pipe A20063 in turn, and then enter the lower arc-shaped water tank A20062 through each cooling pipe A20063, and then enter the drain pipe A20065 through the lower arc-shaped water tank A20062, and then enter the return pipe A2005 through the drain pipe A20065, and then flow back to the water tank A2001 through the return pipe A2005.

[0112] Furthermore, each cooling tube A20063 is spiral-shaped. The spiral cooling tube A20063 can increase the residence time of water. When the residence time of water in the cooling tube A20063 is longer, the temperature inside the alkylation reaction tank body 10 can be better taken away to achieve heat exchange.

[0113] Embodiment 3

[0114] like Figure 4 , Figure 5 as well as Figure 7 As shown, based on the first embodiment, the following improvements are made:

[0115] Furthermore, the heating tube bundle assembly 3007 includes an upper arc-shaped water tank B30071 fixedly installed at the upper part of the inner cavity of the alkylation reaction tank body 10 and a lower arc-shaped water tank B30072 fixedly installed at the lower part of the inner cavity of the alkylation reaction tank body 10, and a plurality of cooling tubes B30073 are fixedly installed between the upper arc-shaped water tank B30071 and the lower arc-shaped water tank B30072, and each cooling tube B30073 is connected to the upper arc-shaped water tank B30071 and the lower arc-shaped water tank B30072;

[0116] A water inlet pipe B30074 is fixedly installed on the top of the upper arc-shaped water tank B30071. The water inlet pipe B30074 is connected to the upper arc-shaped water tank B30071. One end of the top of the water inlet pipe B30074 penetrates upwardly through the top of the alkylation reaction tank body 10.

[0117] A drainage pipe B30075 is fixedly installed at the bottom of the lower arc-shaped water tank B30072. The drainage pipe B30075 is connected to the lower arc-shaped water tank B30072. One end of the bottom of the drainage pipe B30075 penetrates downwardly through the bottom of the alkylation reaction tank body 10.

[0118] The free end of the water supply pipe B3004 is connected to the water inlet pipe B30074, and the free end of the return pipe B3005 is connected to the drainage pipe B30075.

[0119] In this embodiment, the hot water in the water supply pipe B3004 can enter the upper arc-shaped water tank B30071 through the water inlet pipe B30074. The hot water entering the upper arc-shaped water tank B30071 can enter each cooling pipe B30073 in turn, and then enter the lower arc-shaped water tank B30072 through each cooling pipe B30073, and then enter the drain pipe B30075 through the lower arc-shaped water tank B30072, and then enter the return pipe B3005 through the drain pipe B30075, and then flow back to the water tank B3001 through the return pipe B3005.

[0120] Furthermore, each cooling tube B30073 is spirally shaped. The spiral cooling tube B30073 can increase the residence time of hot water. When the residence time of hot water in the cooling tube A20063 is longer, it can better release heat to the inside of the alkylation reaction tank body 10 to further increase the temperature inside the alkylation reaction tank body 10.

[0121] Embodiment 4

[0122] like Figure 1-2 as well as Figure 8-9 As shown, based on the first embodiment, the following improvements are made:

[0123] Furthermore, a heat dissipation assembly 40 is also installed on the alkylation reaction tank body 10;

[0124] The heat dissipation assembly 40 includes an arc-shaped heat dissipation jacket A4001 and an arc-shaped heat dissipation jacket B4002 which are symmetrically arranged. The arc-shaped heat dissipation jacket A4001 and the arc-shaped heat dissipation jacket B4002 are both clamped and installed on the side wall of the alkylation reaction tank body 10.

[0125] A plurality of heat dissipation holes A40011 are provided on the side wall of the arc-shaped heat dissipation jacket A4001, and a plurality of heat dissipation holes B40021 are provided on the side wall of the arc-shaped heat dissipation jacket B4002;

[0126] The upper and lower parts between the arc-shaped heat dissipation jacket A4001 and the arc-shaped heat dissipation jacket B4002 are fixedly installed with clamps 4003.

[0127] In this embodiment, the heat dissipation assembly 40 composed of the arc-shaped heat dissipation jacket A4001 and the arc-shaped heat dissipation jacket B4002 can dissipate heat from the outside of the alkylation reaction tank 10, and a plurality of heat dissipation holes A40011 and heat dissipation holes B40021 can further improve the heat dissipation efficiency;

[0128] The two clamps 4003 can clamp and fix the arc-shaped heat dissipation jacket A4001 and the arc-shaped heat dissipation jacket B4002. At the same time, the two clamps 4003 can also be easily disassembled. When the two clamps 4003 are disassembled, the arc-shaped heat dissipation jacket A4001 and the arc-shaped heat dissipation jacket B4002 can be disassembled at the same time.

[0129] Embodiment 5

[0130] like Figure 1 as well as Figure 5 As shown, based on the first embodiment, the following improvements are made:

[0131] Furthermore, a dual-channel feed structure 50 is detachably mounted on the reactant feed port 1001 .

[0132] Furthermore, the dual-channel feed structure 50 includes an inverted T-shaped feed pipe 5001, the discharge end of the inverted T-shaped feed pipe 5001 is plugged and installed in the reactant feed port 1001, and the ends of the two branches of the inverted T-shaped feed pipe 5001 are fixedly installed with a blocking plate 50011;

[0133] Feed branches 5002 are fixedly installed on the two branches of the inverted T-shaped feed pipe 5001, and the two feed branches 5002 are connected to the corresponding branches of the inverted T-shaped feed pipe 5001;

[0134] Valves 5003 are fixedly installed on the two feed branches 5002.

[0135] In this embodiment, in order to improve the convenience of feeding the alkylation reaction tank body 10, a dual-channel feeding structure 50 is installed on the reactant feed port 1001 of the alkylation reaction tank body 10. The dual-channel feeding structure 50 can be conveniently installed and disassembled by plugging and matching the inverted T-shaped feeding pipe 5001 with the reactant feed port 1001. At the same time, there are two feeding branches 5002 on the inverted T-shaped feeding pipe 5001, and each feeding branch 5002 has a valve 5003. In daily use, only one of the feeding branches 5002 needs to be used, and the valve 5003 on the corresponding feeding branch 5002 is kept open, and the valve 5003 on the other feeding branch 5002 is closed.

[0136] When one of the feed branches 5002 is damaged, the valve 5003 on the damaged feed branch 5002 is closed.

[0137] Then open the valve 5003 on the other feed branch 5002. At this time, the other feed branch 5002 can maintain the normal use of the reactor. Compared with the existing ones, the reactor is provided with two feed branches 5002. After one of the feed branches 5002 is damaged, the other feed branch 5002 can still be used normally, so as to avoid affecting the working progress of the alkylation reaction tank 10.

[0138] In summary, the workflow of the utility model is:

[0139] like Figure 1-9 As shown, when the reactants enter the alkylation reaction tank 10 for reaction, in order to adjust the reaction temperature in the alkylation reaction tank 10 and reduce the reaction temperature in the alkylation reaction tank 10, the water pump A2002 is started, and the water pump A2002 can pump out the water in the water tank A2001 through the pumping pipe A2003, and transport the water to the cooling tube bundle assembly 2006 through the water delivery pipe A2004, and then the water flows back to the water tank A2001 from the cooling tube bundle assembly 2006, so as to form a reciprocating cycle;

[0140] When cold water enters the cooling tube bundle assembly 2006 , the cooling tube bundle assembly 2006 can absorb the heat inside the alkylation reaction tank body 10 and realize heat exchange, so that the reaction temperature inside the alkylation reaction tank body 10 can be effectively reduced.

[0141] When the cold cycle mechanism 20 is working, the hot cycle mechanism 30 is not working.

[0142] When the reaction temperature in the alkylation reaction tank 10 needs to be increased, each heating coil 3006 is energized, and the multiple heating coils 3006 heat the water in the water tank B3001, and the water pump B3002 is started. The water pump B3002 can pump out the hot water in the water tank B3001 through the pumping pipe B3003, and transport it to the heating tube bundle assembly 3007 through the water delivery pipe B3004, and then return it to the water tank B3001 from the heating tube bundle assembly 3007, so as to repeat the cycle.

[0143] When hot water enters the heating tube bundle assembly 3007 , the heat of the heating tube bundle assembly 3007 can be integrated into the inner cavity of the alkylation reaction tank body 10 , thereby increasing the reaction temperature in the alkylation reaction tank body 10 .

[0144] When the heat circulation mechanism 30 is working, the cold circulation mechanism 20 is not working.

[0145] Therefore, the reaction temperature in the alkylation reaction tank 10 can be adjusted by the cooperation between the cold cycle mechanism 20 and the hot cycle mechanism 30 .

[0146] Specifically, the water in the water delivery pipe A2004 can enter the upper arc-shaped water tank A20061 through the water inlet pipe A20064, and the water entering the upper arc-shaped water tank A20061 can enter each cooling pipe A20063 in turn, and then enter the lower arc-shaped water tank A20062 through each cooling pipe A20063, and then enter the drain pipe A20065 through the lower arc-shaped water tank A20062, and then enter the return pipe A2005 through the drain pipe A20065, and then flow back to the water tank A2001 through the return pipe A2005;

[0147] Each cooling tube A20063 is spiral-shaped. The spiral cooling tube A20063 can increase the residence time of water. When the residence time of water in the cooling tube A20063 is longer, the temperature inside the alkylation reaction tank body 10 can be better taken away to achieve heat exchange.

[0148] Specifically, the hot water in the water delivery pipe B3004 can enter the upper arc-shaped water tank B30071 through the water inlet pipe B30074, and the hot water entering the upper arc-shaped water tank B30071 can enter each cooling pipe B30073 in turn, and then enter the lower arc-shaped water tank B30072 through each cooling pipe B30073, and then enter the drainage pipe B30075 through the lower arc-shaped water tank B30072, and then enter the return pipe B3005 through the drainage pipe B30075, and then flow back to the water tank B3001 through the return pipe B3005;

[0149] Each cooling tube B30073 is spiral-shaped. The spiral cooling tube B30073 can increase the residence time of hot water. When the hot water stays in the cooling tube A20063 for a long time, it can better release heat to the inside of the alkylation reaction tank body 10 to further increase the temperature inside the alkylation reaction tank body 10.

[0150] The heat dissipation assembly 40 composed of the arc-shaped heat dissipation jacket A4001 and the arc-shaped heat dissipation jacket B4002 can dissipate heat from the outside of the alkylation reaction tank 10, and a plurality of heat dissipation holes A40011 and heat dissipation holes B40021 can further improve the heat dissipation efficiency;

[0151] The two clamps 4003 can clamp and fix the arc-shaped heat dissipation jacket A4001 and the arc-shaped heat dissipation jacket B4002. At the same time, the two clamps 4003 can also be easily disassembled. When the two clamps 4003 are disassembled, the arc-shaped heat dissipation jacket A4001 and the arc-shaped heat dissipation jacket B4002 can be disassembled at the same time.

[0152] In order to improve the convenience of feeding into the alkylation reaction tank body 10, a dual-channel feeding structure 50 is installed on the reactant feed port 1001 of the alkylation reaction tank body 10. The dual-channel feeding structure 50 can be conveniently installed and disassembled by plugging and matching the inverted T-shaped feeding pipe 5001 with the reactant feed port 1001. At the same time, there are two feeding branches 5002 on the inverted T-shaped feeding pipe 5001, and each feeding branch 5002 has a valve 5003. In daily use, only one of the feeding branches 5002 needs to be used, and the valve 5003 on the corresponding feeding branch 5002 is kept open, and the valve 5003 on the other feeding branch 5002 is closed.

[0153] When one of the feed branches 5002 is damaged, the valve 5003 on the damaged feed branch 5002 is closed.

[0154] Then open the valve 5003 on the other feed branch 5002. At this time, the other feed branch 5002 can maintain the normal use of the reactor. Compared with the existing ones, the reactor is provided with two feed branches 5002. After one of the feed branches 5002 is damaged, the other feed branch 5002 can still be used normally, so as to avoid affecting the working progress of the alkylation reaction tank 10.

[0155] The above different embodiments can be combined, replaced and used in conjunction with each other.

[0156] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0157] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature-adjustable alkylation reactor, characterized in that: include: An alkylation reaction tank (10), wherein the bottom of the alkylation reaction tank (10) is provided with a reactant feed port (1001), and the top of the alkylation reaction tank (10) is provided with a reactant discharge port (1002); A cold circulation mechanism (20), wherein the cold circulation mechanism (20) is installed on the alkylation reaction tank body (10); The cold circulation mechanism (20) comprises a water tank A (2001), the water tank A (2001) being arranged on one side of the alkylation reaction tank body (10), a water pump A (2002) being fixedly mounted on the top of the water tank A (2001), a water inlet end of the water pump A (2002) being connected to a water pumping pipe A (2003), a free end of the water pumping pipe A (2003) being located in the inner cavity of the water tank A (2001), a water outlet end of the water pump A (2002) being connected to a water delivery pipe A (2004), a free end of the water delivery pipe A (2004) extending upward, a bottom of the water tank A (2001) being connected to a water return pipe A (2005), a free end of the water return pipe A (2005) extending downward; The cold circulation mechanism (20) further comprises a cooling tube bundle assembly (2006), wherein the cooling tube bundle assembly (2006) is installed on one side of the inner cavity of the alkylation reaction tank body (10); The free ends of the water delivery pipe A (2004) and the water return pipe A (2005) are respectively connected to the two ends of the cooling tube bundle assembly (2006); and A thermal cycle mechanism (30), wherein the thermal cycle mechanism (30) is installed on the alkylation reaction tank (10); The heat circulation mechanism (30) comprises a water tank B (3001), the water tank B (3001) is arranged on the other side of the alkylation reaction tank body (10), a water pump B (3002) is fixedly installed on the top of the water tank B (3001), the water inlet end of the water pump B (3002) is connected to a water pumping pipe B (3003), the free end of the water pumping pipe B (3003) is located in the inner cavity of the water tank B (3001), the water outlet end of the water pump B (3002) is connected to a water delivery pipe B (3004), the free end of the water delivery pipe B (3004) extends upward, the bottom of the water tank B (3001) is connected to a water return pipe B (3005), the free end of the water return pipe B (3005) extends downward; A plurality of heating coils (3006) are fixedly installed at the bottom of the water tank B (3001), and the plurality of heating coils (3006) are distributed circumferentially at the bottom of the water pumping pipe B (3003); The thermal cycle mechanism (30) further comprises a heating tube bundle assembly (3007), wherein the heating tube bundle assembly (3007) is installed on the other side of the inner cavity of the alkylation reaction tank body (10); Wherein, the cooling tube bundle assembly (2006) and the heating tube bundle assembly (3007) are symmetrically arranged; The free ends of the water supply pipe B (3004) and the return pipe B (3005) are respectively connected to the two ends of the heating tube bundle assembly (3007).

2. The temperature-adjustable alkylation reactor according to claim 1, characterized in that: The cooling tube bundle assembly (2006) comprises an upper arc-shaped water tank A (20061) fixedly mounted on the upper part of the inner cavity of the alkylation reaction tank body (10) and a lower arc-shaped water tank A (20062) fixedly mounted on the lower part of the inner cavity of the alkylation reaction tank body (10), a plurality of cooling tubes A (20063) fixedly mounted between the upper arc-shaped water tank A (20061) and the lower arc-shaped water tank A (20062), and each of the cooling tubes A (20063) is connected to the upper arc-shaped water tank A (20061) and the lower arc-shaped water tank A (20062); A water inlet pipe A (20064) is fixedly installed on the top of the upper arc-shaped water tank A (20061), the water inlet pipe A (20064) is connected to the upper arc-shaped water tank A (20061), and one end of the top of the water inlet pipe A (20064) penetrates upward through the top of the alkylation reaction tank body (10); A drainage pipe A (20065) is fixedly installed at the bottom of the lower arc-shaped water tank A (20062), the drainage pipe A (20065) is connected to the lower arc-shaped water tank A (20062), and one end of the bottom of the drainage pipe A (20065) penetrates downwardly through the bottom of the alkylation reaction tank body (10); The free end of the water supply pipe A (2004) is connected to the water inlet pipe A (20064), and the free end of the water return pipe A (2005) is connected to the drainage pipe A (20065).

3. The temperature-adjustable alkylation reactor according to claim 1, characterized in that: The free end of the water pumping pipe A (2003) passes downward through the top of the water tank A (2001) and extends to the bottom of the inner cavity of the water tank A (2001).

4. The temperature-adjustable alkylation reactor according to claim 2, characterized in that: Each of the cooling tubes A (20063) is spiral-shaped.

5. The temperature-adjustable alkylation reactor according to claim 1, characterized in that: The heating tube bundle assembly (3007) comprises an upper arc-shaped water tank B (30071) fixedly mounted on the upper part of the inner cavity of the alkylation reaction tank body (10) and a lower arc-shaped water tank B (30072) fixedly mounted on the lower part of the inner cavity of the alkylation reaction tank body (10), a plurality of cooling tubes B (30073) fixedly mounted between the upper arc-shaped water tank B (30071) and the lower arc-shaped water tank B (30072), and each of the cooling tubes B (30073) is connected to the upper arc-shaped water tank B (30071) and the lower arc-shaped water tank B (30072); A water inlet pipe B (30074) is fixedly installed on the top of the upper arc-shaped water tank B (30071), the water inlet pipe B (30074) is connected to the upper arc-shaped water tank B (30071), and one end of the top of the water inlet pipe B (30074) penetrates upward through the top of the alkylation reaction tank body (10); A drainage pipe B (30075) is fixedly installed at the bottom of the lower arc-shaped water tank B (30072), the drainage pipe B (30075) is connected to the lower arc-shaped water tank B (30072), and one end of the bottom of the drainage pipe B (30075) penetrates downwardly through the bottom of the alkylation reaction tank body (10); The free end of the water delivery pipe B (3004) is connected to the water inlet pipe B (30074), and the free end of the water return pipe B (3005) is connected to the drainage pipe B (30075).

6. The temperature-adjustable alkylation reactor according to claim 1, characterized in that: The free end of the water pumping pipe B (3003) passes downward through the top of the water tank B (3001) and extends to the bottom of the inner cavity of the water tank B (3001).

7. The temperature-adjustable alkylation reactor according to claim 5, characterized in that: Each of the cooling tubes B (30073) is spiral-shaped.

8. The temperature-adjustable alkylation reactor according to claim 1, characterized in that: The alkylation reaction tank (10) is also provided with a heat dissipation component (40); The heat dissipation assembly (40) comprises a symmetrically arranged arc-shaped heat dissipation jacket A (4001) and an arc-shaped heat dissipation jacket B (4002), wherein the arc-shaped heat dissipation jacket A (4001) and the arc-shaped heat dissipation jacket B (4002) are both snap-fitted and mounted on the side wall of the alkylation reaction tank body (10); A plurality of heat dissipation holes A (40011) are provided on the side wall of the arc-shaped heat dissipation jacket A (4001), and a plurality of heat dissipation holes B (40021) are provided on the side wall of the arc-shaped heat dissipation jacket B (4002); The upper part and the lower part between the arc-shaped heat dissipation jacket A (4001) and the arc-shaped heat dissipation jacket B (4002) are both fixedly mounted with clamps (4003).

9. The temperature-adjustable alkylation reactor according to claim 1, characterized in that: A dual-channel feed structure (50) is detachably mounted on the reactant feed port (1001).

10. The temperature-adjustable alkylation reactor according to claim 9, characterized in that: The dual-channel feed structure (50) comprises an inverted T-shaped feed pipe (5001), the discharge end of the inverted T-shaped feed pipe (5001) is plugged and installed in the reactant feed port (1001), and the ends of the two branches of the inverted T-shaped feed pipe (5001) are fixedly installed with blocking plates (50011); Feed branches (5002) are fixedly mounted on the two branches of the inverted T-shaped feed pipe (5001), and the two feed branches (5002) are connected to the corresponding branches of the inverted T-shaped feed pipe (5001); Valves (5003) are fixedly mounted on the two feed branches (5002).

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