Cooling system applied to alkylation reaction

Abstract

The invention discloses a cooling system applied to alkylation reaction, and relates to the technical field of cooling systems, the cooling system comprises a reaction tank, a temperature control device for controlling the temperature of the reaction tank, and a stirring device arranged in the reaction tank; a first inner container and a second inner container arranged in the first inner container are arranged in the reaction tank; wherein at least two side walls in the second inner container are provided with circulating parts, so that the second inner container is communicated with the first inner container, and the stirring part of the stirring device is positioned above one circulating part, so that reaction liquid in the second inner container circularly flows between the first inner container and the second inner container through stirring of the stirring part; reaction liquid in a static state is changed into circularly flowing reaction liquid, and the circularly flowing reaction liquid can be used for controlling the temperature of each part of reaction liquid in a short time, so that a temperature control mode in the prior art is changed, the temperature of each part of reaction liquid can be controlled in the first time, and the temperature of each part of reaction liquid can be controlled in the second time. And the reaction effect of the reaction liquid is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of cooling systems, in particular to a cooling system applied to alkylation reactions. Background Art

[0002] Alkylation reaction refers to the reaction of introducing alkyl groups (-R) into carbon, nitrogen, oxygen and other atoms in organic molecules, which is referred to as alkylation.

[0003] In the synthesis process of tert-butyltoluene by alkylation reaction, toluene, concentrated sulfuric acid and methylbenzenesulfonic acid are usually added to the alkylation reaction tank, the temperature in the reaction tank is controlled at 20-22°C, and isobutylene is introduced into the reaction tank in three stages for alkylation reaction, the first stage is 3 hours, the second stage is 5 hours, and the third stage is 4-6 hours, so as to obtain tert-butyltoluene. In order to ensure that the temperature in the reaction tank is controllable, a condenser is usually arranged spirally on the outside of the reaction tank, one end of the condenser is connected to a refrigeration device, and the refrigeration device is used to cool the coolant in the condenser so that the coolant is kept within a reasonable temperature range to control the temperature in the tank.

[0004] However, in large-scale industrial reaction processes, the reaction liquid is in a static state. A portion of the reaction liquid close to the condenser can be cooled quickly, while the reaction liquid far away from the condenser has a poor cooling effect. As a result, part of the reaction liquid cannot be temperature-controlled in the first time during the reaction, which greatly affects the reaction effect of the reaction liquid. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a cooling system for alkylation reaction to solve the technical problem that the existing temperature control method of the reaction tank in the background technology will cause part of the reaction liquid to be unable to be temperature controlled in the first time, greatly affecting the reaction effect of the reaction liquid.

[0006] The present invention provides a cooling system for alkylation reaction, comprising a reaction tank, a temperature control device for controlling the temperature of the reaction tank, and a stirring device arranged in the reaction tank;

[0007] The reaction tank is provided with a first inner liner and a second inner liner arranged inside the first inner liner, and a gap is provided between the first inner liner and the second inner liner to form a transmission gap for the reaction liquid to flow;

[0008] At least two side walls of the second inner container are provided with flow parts to connect the second inner container with the first inner container, and the stirring part of the stirring device is located above the flow part, so that the reaction liquid in the second inner container circulates between the first inner container and the second inner container through the stirring of the stirring part.

[0009] Furthermore, the temperature control device includes a tube group and a temperature control machine;

[0010] One end of each tube in the tube group is connected to the output end of the temperature controller, and the other end of each tube extends into the interior of the reaction tank, passes through one side of the reaction tank, and is connected to the input end of the temperature controller.

[0011] Furthermore, the temperature controller includes a temperature controller body, a water storage tank connected to the output end of the temperature controller body, and a pump body arranged in the water storage tank;

[0012] The tube body group includes at least one first cooling tube, one end of which is connected to the output end of the pump body, the other end of which extends into the interior of the reaction tank, passes through one side of the reaction tank, and is connected to the input end of the temperature control machine body, and the output end of the temperature control machine body is connected to the water storage tank;

[0013] Among them, the temperature controller body is used to control the temperature of the temperature-control liquid in the first cooling pipe and transfer the temperature-controlled liquid to the water tank, so that the temperature-controlled liquid in the water tank is transferred to the first cooling pipe through the pump body, so that the temperature-control liquid is transferred to the reaction tank to control the temperature of the reaction liquid.

[0014] Furthermore, the tube body group further includes at least one second cooling tube;

[0015] One end of the second cooling pipe is connected to the output end of the pump body, and the other end of the second cooling pipe extends into the interior of the reaction tank, passes through one side of the reaction tank, and is connected to the input end of the temperature control machine body.

[0016] Furthermore, a cooling chamber is further provided in the reaction tank, the first portion of the first cooling pipe is located in the first inner tank, and the second portion of the first cooling pipe is located in the cooling chamber;

[0017] Wherein, the second cooling pipe is located in the cooling chamber, and the second cooling pipe is closely attached to the second part of the first cooling pipe, so that the temperature-controlling liquid in the second part is cooled by the temperature-controlling liquid in the second cooling pipe;

[0018] Wherein, the temperature of the temperature-controlling liquid in the second part is greater than the temperature of the temperature-controlling liquid in the second cooling pipe.

[0019] Furthermore, the temperature control device further comprises a temperature detector provided on each of the second parts, and a valve provided on each of the second cooling pipes;

[0020] The temperature detector is used to detect the second temperature of the temperature-control liquid in the second part;

[0021] When the second temperature is greater than the preset temperature control data of the temperature control machine body, the valve is controlled to transfer the temperature control liquid of the first temperature in the water storage tank to the second cooling pipe, so that the temperature control liquid of the second temperature in the second part is cooled.

[0022] Further, the second portion is provided with a plurality of transition areas;

[0023] Each of the transition regions includes a transition input end and a transition output end, and the opening size of each of the transition input ends is larger than the opening size of each of the corresponding transition output ends.

[0024] Further, the second portion is provided with a first transition area and a second transition area;

[0025] The first transition region and the second transition region are arranged at intervals along the radial direction of the second portion;

[0026] Wherein, the first transition region includes a first transition input end and a first transition output end, and the opening size of the first transition input end is larger than the opening size of the first transition output end;

[0027] The second transition region includes a second transition input end and a second transition output end, and an opening size of the second transition input end is larger than an opening size of the second transition output end.

[0028] Further, the second portion is provided with a first transition area and a second transition area;

[0029] The first transition region and the second transition region are connected to each other;

[0030] Wherein, the first transition region includes a first transition input end and a first transition output end, and the opening size of the first transition input end is larger than the opening size of the first transition output end;

[0031] The second transition region includes a second transition input end and a second transition output end, the opening size of the second transition input end is larger than the opening size of the second transition output end, and the opening size of the second transition input end is equal to the opening size of the first transition output end.

[0032] Furthermore, the reaction tank comprises a tank body and a cover body connected to the tank body.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] In a cooling system for alkylation reaction provided by the present invention, a first inner liner and a second inner liner are arranged in a reaction tank, the second inner liner is arranged in the first inner liner, and there is a gap between the first inner liner and the second inner liner to form a transmission gap for the reaction liquid to flow; at least two side walls of the second inner liner are provided with a flow portion to connect the second inner liner with the first inner liner, and a stirring portion of a stirring device is located above a flow portion, so that the reaction liquid in the second inner liner circulates between the first inner liner and the second inner liner through stirring by the stirring portion, and when the stirring portion drives the reaction liquid in the reaction tank to stir, the reaction liquid is spirally raised from the bottom of the second inner liner by the action of centrifugal force until the reaction liquid can be transmitted by the flow portion located at the side of the second inner liner, so that the reaction liquid circulates between the second inner liner and the first inner liner, that is, the reaction liquid in a static state is changed into a circulating reaction liquid, and the circulating reaction liquid can control the temperature of each part of the reaction liquid in a short time, thereby changing the temperature control method in the prior art, ensuring that each part of the reaction liquid can be controlled in the first time, and ensuring the reaction effect of the reaction liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A three-dimensional diagram of a cooling system used in an alkylation reaction according to an embodiment of the present invention;

[0036] Figure 2 It is a schematic diagram of the overall structure of a cooling system applied to an alkylation reaction in one embodiment of the present invention;

[0037] Figure 3 A schematic diagram of a working state of a reaction tank in one embodiment of the present invention;

[0038] Figure 4 A schematic diagram of a working state of a temperature controller in one embodiment of the present invention;

[0039] Figure 5 This is another working state schematic diagram of the reaction tank in one embodiment of the present invention;

[0040] Figure 6 This is another working state schematic diagram of the temperature control machine in one embodiment of the present invention;

[0041] Figure 7 FIG. 4 is a schematic diagram of the structure of the transition area in one embodiment of the present invention.

[0042] Reference numerals

[0043] In the figure: 100, reaction tank; 110, first inner liner; 120, second inner liner; 130, transmission gap; 140, circulation part; 150, cooling chamber; 160, tank body; 170, cover body; 200, temperature control device; 210, tube body group; 211, first cooling pipe; 2111, first part; 2112, second part; 212, second cooling pipe; 213, first transition area; 2131, first transition input end; 2132, first transition output end; 214, second transition area; 2141, second transition input end; 2142, second transition output end; 220, temperature controller; 221, temperature controller body; 222, water storage tank; 223, pump body; 230, temperature detector; 240, valve; 300, stirring device. DETAILED DESCRIPTION

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0045] In addition, the term "and / or" as used herein includes any and all combinations of one or more related listed items. In the detailed description and claims, a list of items connected by the term "one of" may mean any of the listed items. For example, if items A and B are listed, the phrase "one of A and B" means only A or only B. In another example, if items A, B, and C are listed, the phrase "one of A, B, and C" means only A; only B; or only C. Item A may contain a single element or multiple elements. Item B may contain a single element or multiple elements. Item C may contain a single element or multiple elements. In the detailed description and claims, a list of items connected by the terms "one of - less than one", "one of - less than one" or other similar terms may mean any combination of the listed items. For example, if items A and B are listed, the phrase "one of - less than one of A and B" or "one of - less than one of A or B" means only A; only B; or A and B. In another example, if items A, B, and C are listed, the phrase "less than one of A, B, and C" or "less than one of A, B, or C" means only A; or only B; only C; A and B (excluding C); A and C (excluding B); B and C (excluding A); or all of A, B, and C. Item A may include a single element or multiple elements. Item B may include a single element or multiple elements. Item C may include a single element or multiple elements.

[0046] See also Figure 1-Figure 7As shown, the present invention provides a cooling system for alkylation reaction, including a reaction tank 100, a temperature control device 200 for controlling the temperature of the reaction tank 100, and a stirring device 300 arranged in the reaction tank 100.

[0047] Specifically, in the embodiment, the reaction tank 100 includes a tank body 160 and a cover body 170 connected to the tank body 160, and the stirring device 300 can be arranged on the tank body 160, which can include a rotating shaft rotatably connected to the cover body 170, and a stirring blade fixedly connected to the rotating shaft. The stirring blade is the stirring part in this embodiment. It should be noted that in the reaction of some chemical liquids, the reaction speed between the chemical liquids can be quickly increased by stirring, and in some preferred embodiments, a servo motor can be arranged on the cover body 170, and the output end of the servo motor is connected to the rotating shaft to drive the stirring part to rotate.

[0048] However, when the chemical components in the chemical liquid react, high temperature will be generated. In order to ensure the stability of the reaction, the temperature in the reaction environment needs to be controlled. The temperature control method in the prior art will cause a part of the reaction liquid far away from the condenser to be unable to be temperature controlled in the first time, which greatly affects the reaction effect of the reaction liquid. Specifically, in the reaction tank 100, the reaction liquid located in the middle of the reaction tank 100 cannot be temperature controlled in the first time.

[0049] Therefore, in this embodiment, in order to ensure the reaction speed and to control the temperature of each part of the reaction liquid within the first time, the reaction tank 100 is provided with a first inner liner 110 and a second inner liner 120 disposed within the first inner liner 110, and a gap is provided between the first inner liner 110 and the second inner liner 120 to form a transmission gap 130 for the reaction liquid to flow;

[0050] Among them, at least two side walls of the second inner liner 120 are provided with a circulation portion 140 to connect the second inner liner 120 with the first inner liner 110. The stirring portion of the stirring device 300 is located above a circulation portion 140, so that the reaction liquid in the second inner liner 120 circulates between the first inner liner 110 and the second inner liner 120 through the stirring of the stirring portion.

[0051] Specifically, the second inner liner 120 is located at the upper part of the tank body 160, the bottom of the second inner liner 120 is hollowed out to form a circulation portion 140 at the bottom of the second inner liner 120, and the upper part of the side of the second inner liner 120 has a through hole to form another circulation portion 140 on the side of the second inner liner 120. The stirring portion of the stirring device 300 is located in the second inner liner 120. When the stirring portion drives the reaction liquid in the reaction tank 100 to stir, the reaction liquid is spirally raised from the bottom of the second inner liner 120 by utilizing the action of centrifugal force until the reaction liquid can be transmitted by the circulation portion 140 located on the side of the second inner liner 120, so that the reaction liquid circulates between the second inner liner 120 and the first inner liner 110, that is, the reaction liquid in a static state is changed into a circulating reaction liquid. The circulating reaction liquid can control the temperature of each part of the reaction liquid in a short time, thereby changing the temperature control method in the prior art, ensuring that each portion of the reaction liquid can be controlled in temperature within the first time, and ensuring the reaction effect of the reaction liquid.

[0052] In some embodiments, in order to facilitate the temperature control of the reaction liquid, the temperature control device 200 includes a tube group 210 and a temperature controller 220. One end of each tube in the tube group 210 is connected to the output end of the temperature controller 220. The other end of each tube extends into the interior of the reaction tank 100, passes through one side of the reaction tank 100, and is connected to the input end of the temperature controller 220. Specifically, the tube group 210 may include at least one first cooling tube 211. The temperature controller 220 may adopt a single cooling device in the prior art, that is, the input end of the first cooling tube 211 is connected to the output end of the temperature controller 220, and the output end of the first cooling tube 211 is connected to the input end of the temperature controller 220. The temperature of the temperature-controlled liquid in the first cooling tube 211 is controlled by the temperature controller 220, so that the temperature of the reaction liquid can be kept within a reasonable range. For details, please refer to Figure 3-Figure 4 shown.

[0053] However, in some large-scale industrial reaction tanks 100, the temperature controller 220 needs to maintain a high-efficiency temperature control efficiency for a long time. But in actual situations, the temperature controller 220 will be affected by the high-efficiency operation for a long time, and it is very easy to cause equipment damage or short circuit.

[0054] To this end, in some preferred embodiments, the temperature control machine 220 may include a temperature control machine body 221, a water storage tank 222 connected to the output end of the temperature control machine body 221, and a pump body 223 disposed in the water storage tank 222;

[0055] The tube group 210 includes at least one first cooling tube 211 and at least one second cooling tube 212. One end of the first cooling tube 211 is connected to the output end of the pump body 223. The other end of the first cooling tube 211 extends into the interior of the reaction tank 100, passes through one side of the reaction tank 100, and is connected to the input end of the temperature control machine body 221. The output end of the temperature control machine body 221 is connected to the water storage tank 222.

[0056] Among them, the temperature control machine body 221 is used to control the temperature of the temperature control liquid in the first cooling tube 211, and transfer the temperature control liquid after temperature control to the water storage tank 222, so that the temperature control liquid in the water storage tank 222 after temperature control is transferred to the first cooling tube 211 through the pump body 223, so that the temperature control liquid transfer reaction tank 100 can control the temperature of the reaction liquid.

[0057] One end of the second cooling pipe 212 is connected to the output end of the pump body 223 , and the other end of the second cooling pipe 212 extends into the reaction tank 100 , passes through one side of the reaction tank 100 , and is connected to the input end of the temperature control machine body 221 .

[0058] To facilitate understanding of the second cooling pipe 212 in this embodiment, a cooling chamber 150 is also provided in the reaction tank 100, and the first part 2111 of the first cooling pipe 211 is located in the first inner tank 110, and the second part 2112 of the first cooling pipe 211 is located in the cooling chamber 150; wherein, the second cooling pipe 212 is located in the cooling chamber 150, and the second cooling pipe 212 is tightly attached to the second part 2112 of the first cooling pipe 211, so that the temperature-control liquid in the second part 2112 is cooled by the temperature-control liquid of the second cooling pipe 212; wherein, the temperature of the temperature-control liquid in the second part 2112 is greater than the temperature of the temperature-control liquid in the second cooling pipe 212.

[0059] Specifically, see Figure 5-Figure 6As shown, the temperature-controlled liquid is transmitted by the first part 2111 after the temperature control is completed. The temperature-controlled liquid is at the first temperature, that is, the temperature-controlled liquid at the first temperature is used to control the temperature of the reaction liquid in the reaction tank 100. However, after the temperature-controlled liquid at the first temperature contacts the high-temperature reaction liquid, it will increase from the first temperature to the second temperature. Then, the second part 2112 transmits the temperature-controlled liquid at the second temperature to the input end of the temperature control machine body 221. However, since the reaction liquid has a high temperature, the temperature-controlled liquid at the second temperature needs to correspond to the high-efficiency temperature control machine body 221. In order to achieve the temperature control of the temperature-controlled liquid by the low-efficiency temperature control machine body 221, the second cooling Pipe 212 cools down the temperature-control liquid at the first temperature and the temperature-control liquid at the second temperature. At this time, the temperature-control liquid at the second temperature will drop to the third temperature, and the temperature-control liquid at the first temperature in the second cooling pipe 212 is in direct contact with the temperature-control liquid at the third temperature, and will become the temperature-control liquid at the fourth temperature. The temperature-control liquids corresponding to the third temperature and the fourth temperature both correspond to the low-efficiency temperature control machine body 221, so that the high-temperature temperature-control liquid can be controlled by the low-power temperature control machine body 221, so that the temperature control machine body 221 can operate at low efficiency for a long time, avoiding damage or short circuit of the temperature control machine body 221.

[0060] Moreover, in some preferred embodiments, the temperature control device 200 also includes a temperature detector 230 provided on each second part 2112, and a valve 240 provided on each second cooling pipe 212; the temperature detector 230 is used to detect the second temperature of the temperature-controlling liquid in the second part 2112; when the second temperature is greater than the preset temperature control data of the temperature control machine body 221, the control valve 240 transfers the temperature-controlling liquid of the first temperature in the water tank 222 to the second cooling pipe 212, so that the temperature-controlling liquid of the second temperature in the second part 2112 is cooled.

[0061] It should be noted that when the second temperature is within the preset temperature control data of the temperature control machine body 221 , the valve 240 is not started, and the corresponding second cooling pipe 212 will not have temperature control liquid.

[0062] In order to prolong the cooling of the temperature-controlled liquid at the second temperature, a plurality of transition areas are provided on the second portion 2112; each transition area includes a transition input end and a transition output end, and the opening size of each transition input end is larger than the opening size of each corresponding transition output end.

[0063] Specifically, the second portion 2112 is provided with a first transition region 213 and a second transition region 214;

[0064] In some preferred embodiments, the first transition region 213 and the second transition region 214 are spaced apart along the radial direction of the second portion 2112; wherein the first transition region 213 includes a first transition input end 2131 and a first transition output end 2132, and the opening size of the first transition input end 2131 is larger than the opening size of the first transition output end 2132; the second transition region 214 includes a second transition input end 2141 and a second transition output end 2142, and the opening size of the second transition input end 2141 is larger than the opening size of the second transition output end 2142. By limiting the size, the transmission speed of the temperature-controlled liquid can be greatly slowed down, and the first transition region 213 and the second transition region 214 can be respectively arranged at the upper part of the second portion 2112 and the lower part close to the output port.

[0065] In some other preferred embodiments, the second portion 2112 is provided with a first transition region 213 and a second transition region 214; the first transition region 213 and the second transition region 214 are connected to each other; wherein the first transition region 213 includes a first transition input end 2131 and a first transition output end 2132, and the opening size of the first transition input end 2131 is larger than the opening size of the first transition output end 2132; the second transition region 214 includes a second transition input end 2141 and a second transition output end 2142, and the opening size of the second transition input end 2141 is larger than the opening size of the second transition output end The opening size of the output end 2142 is equal to the opening size of the second transition input end 2141, and the opening size of the first transition output end 2132 is equal to the opening size of the first transition output end 2132, that is, by limiting the position, the temperature-controlling liquid can be centrally controlled. The first transition area 213 and the second transition area 214 are spaced apart along the radial direction of the second portion 2112, and the first transition area 213 and the second transition area 214 are connected to each other, which can ensure that the temperature-controlling liquid at the second temperature can be cooled in a short time, so that the temperature-controlling liquid can be adjusted by using the low-power temperature control machine body 221. For details, please refer to Figure 7 shown.

[0066] In summary, the cooling system for alkylation reaction provided by the first embodiment of the present invention has at least the following beneficial effects compared with the traditional cooling system:

[0067] In a cooling system for alkylation reaction provided by the present invention, a first inner liner 110 and a second inner liner 120 are arranged in a reaction tank 100, and the second inner liner 120 is arranged in the first inner liner 110, and there is a gap between the first inner liner 110 and the second inner liner 120 to form a transmission gap 130 for the reaction liquid to flow; at least two side walls of the first inner liner 110 are provided with a flow portion 140 to connect the first inner liner 110 with the second inner liner 120, and a stirring portion of a stirring device 300 is located above the flow portion 140, so that the reaction liquid in the second inner liner 120 circulates between the first inner liner 110 and the second inner liner 120 through stirring of the stirring portion. When the stirring part drives the reaction liquid in the reaction tank 100 to stir, the centrifugal force is used to make the reaction liquid spiral up from the bottom of the second inner liner 120 until the reaction liquid can be transmitted by the circulation part 140 located on the side of the second inner liner 120, so that the reaction liquid circulates between the second inner liner 120 and the first inner liner 110, that is, the reaction liquid in a static state is changed into a circulating reaction liquid. The circulating reaction liquid can control the temperature of each part of the reaction liquid in a short time, thereby changing the temperature control method in the prior art, ensuring that each part of the reaction liquid can be controlled in the first time, and ensuring the reaction effect of the reaction liquid.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0069] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A cooling system for alkylation reaction, characterized in that: It comprises a reaction tank, a temperature control device for controlling the temperature of the reaction tank, and a stirring device arranged in the reaction tank; The reaction tank is provided with a first inner liner and a second inner liner arranged inside the first inner liner, and a gap is provided between the first inner liner and the second inner liner to form a transmission gap for the reaction liquid to flow; At least two side walls of the second inner container are provided with flow parts to connect the second inner container with the first inner container, and the stirring part of the stirring device is located above the flow part, so that the reaction liquid in the second inner container circulates between the first inner container and the second inner container through the stirring of the stirring part.

2. The cooling system for alkylation reaction according to claim 1, characterized in that: The temperature control device comprises a tube body group and a temperature control machine; One end of each tube in the tube group is connected to the output end of the temperature controller, and the other end of each tube extends into the interior of the reaction tank, passes through one side of the reaction tank, and is connected to the input end of the temperature controller.

3. The cooling system for alkylation reaction according to claim 2, characterized in that: The temperature controller comprises a temperature controller body, a water storage tank connected to the output end of the temperature controller body, and a pump body arranged in the water storage tank; The tube body group includes at least one first cooling tube, one end of which is connected to the output end of the pump body, the other end of which extends into the interior of the reaction tank, passes through one side of the reaction tank, and is connected to the input end of the temperature control machine body, and the output end of the temperature control machine body is connected to the water storage tank; Among them, the temperature controller body is used to control the temperature of the temperature-control liquid in the first cooling pipe and transfer the temperature-controlled liquid to the water tank, so that the temperature-controlled liquid in the water tank is transferred to the first cooling pipe through the pump body, so that the temperature-control liquid is transferred to the reaction tank to control the temperature of the reaction liquid.

4. The cooling system for alkylation reaction according to claim 3, characterized in that: The tube body group also includes at least one second cooling tube; One end of the second cooling pipe is connected to the output end of the pump body, and the other end of the second cooling pipe extends into the interior of the reaction tank, passes through one side of the reaction tank, and is connected to the input end of the temperature control machine body.

5. The cooling system for alkylation reaction according to claim 4, characterized in that: A cooling chamber is also provided in the reaction tank, the first portion of the first cooling pipe is located in the first inner tank, and the second portion of the first cooling pipe is located in the cooling chamber; Wherein, the second cooling pipe is located in the cooling chamber, and the second cooling pipe is closely attached to the second part of the first cooling pipe, so that the temperature-controlling liquid in the second part is cooled by the temperature-controlling liquid in the second cooling pipe; Wherein, the temperature of the temperature-controlling liquid in the second part is greater than the temperature of the temperature-controlling liquid in the second cooling pipe.

6. The cooling system for alkylation reaction according to claim 5, characterized in that: The temperature control device further comprises a temperature detector provided on each of the second parts, and a valve provided on each of the second cooling pipes; The temperature detector is used to detect the second temperature of the temperature-control liquid in the second part; When the second temperature is greater than the preset temperature control data of the temperature control machine body, the valve is controlled to transfer the temperature control liquid of the first temperature in the water storage tank to the second cooling pipe, so that the temperature control liquid of the second temperature in the second part is cooled.

7. The cooling system for alkylation reaction according to claim 6, characterized in that: The second portion is provided with a plurality of transition areas; Each of the transition regions includes a transition input end and a transition output end, and the opening size of each of the transition input ends is larger than the opening size of each of the corresponding transition output ends.

8. The cooling system for alkylation reaction according to claim 7, characterized in that: The second portion is provided with a first transition region and a second transition region; The first transition region and the second transition region are arranged at intervals along the radial direction of the second portion; Wherein, the first transition region includes a first transition input end and a first transition output end, and the opening size of the first transition input end is larger than the opening size of the first transition output end; The second transition region includes a second transition input end and a second transition output end, and an opening size of the second transition input end is larger than an opening size of the second transition output end.

9. The cooling system for alkylation reaction according to claim 7, characterized in that: The second portion is provided with a first transition region and a second transition region; The first transition region and the second transition region are connected to each other; Wherein, the first transition region includes a first transition input end and a first transition output end, and the opening size of the first transition input end is larger than the opening size of the first transition output end; The second transition region includes a second transition input end and a second transition output end, the opening size of the second transition input end is larger than the opening size of the second transition output end, and the opening size of the second transition input end is equal to the opening size of the first transition output end.

10. The cooling system for alkylation reaction according to claim 1, characterized in that: The reaction tank comprises a tank body and a cover body which is connected to the tank body.

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