A detachable jacket for o-chlorobenzyl cyanide reactor

Abstract

The utility model discloses a detachable jacket for ortho-chlorocyanobenzyl reaction kettle relates to the related technical field of chemical material, the utility model discloses a jacket main part, reaction kettle main part, end socket, connecting pipe and hoop, the lower part outer periphery of reaction kettle main part is provided with the jacket main part of annular array distribution, the inside and outside of jacket main part are all cambered surface, and the inside of jacket main part is open setting, and the opening of jacket main part inside is provided with fluorine rubber ring outside, and the lower part fixedly has lower pipe head in the through of jacket main part outside, and the upper portion fixedly has two upper pipe heads in the through of jacket main part outside, the outside of all jacket main part is collectively provided with two hoops that distribute up and down. The utility model discloses a jacket main part, fluorine rubber ring, hoop, connecting pipe, inlet pipe, outlet pipe, solved the detachable jacket and be difficult to fully distribute in the reaction kettle lateral side, detachable jacket needs the excessive pipeline of connecting, and the wall thickness of jacket inside wall influences the problem of heat transfer efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of chemical materials technology, and in particular relates to a detachable jacket for an o-chlorobenzyl cyanide reactor. Background Technology

[0002] 2-Chlorobenzylcyanide is an organic synthetic intermediate widely used in the synthesis of fine chemicals such as pharmaceuticals, pesticides, and dyes. It possesses specific chemical activities that allow for the construction of more complex molecular structures. The production of 2-chlorobenzylcyanide inevitably requires the use of a reaction vessel, where temperature control is typically necessary. Therefore, temperature control structures such as jackets are required. However, some conventional jackets still have the following drawbacks in practical use: Existing jacket structures are fixed to the outside of the reactor, and heat transfer or cooling media are introduced into the jacket for temperature control. The jacket is usually integrally connected to the reactor and cannot be disassembled or replaced, resulting in low applicability. However, a utility model patent with authorization announcement number CN 207385432 U provides a detachable jacket for an o-chlorobenzyl cyanide reactor. It uses a detachable jacket, but the jacket distribution in this solution is not sufficient to fully distribute the jacket around the reactor, and heat transfer is not comprehensive enough. Secondly, the detachable jackets in the aforementioned patents require each jacket to be connected to the water storage tank via a pipe, resulting in a large amount of pipe laying, which is easily messy and troublesome to install and disassemble. Furthermore, the large number of long pipes increases costs. Finally, conventional jackets are hollow inside. After the medium enters the jacket, heat and other substances need to pass through the inside of the jacket and then through the side wall of the reactor to transfer the heat to the material inside the reactor. The whole process results in high heat loss and insufficient heat transfer efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a detachable jacket for an o-chlorobenzyl cyanide reactor. By setting up a jacket body, fluororubber ring, clamp, connecting pipe, water inlet pipe, and water outlet pipe, it solves the problems that detachable jackets are difficult to distribute fully around the reactor, that detachable jackets require too many connecting pipes, and that the wall thickness of the inner side wall of the jacket affects the heat transfer efficiency.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a detachable jacket for an o-chlorobenzyl cyanide reactor, comprising a jacket body, a reactor body, end caps, connecting pipes, and clamps. The lower outer periphery of the reactor body is provided with jacket bodies arranged in a ring array. Both the inner and outer sides of the jacket bodies are arc surfaces, and the inner side of the jacket bodies is open. A fluororubber ring is provided outside the opening on the inner side of the jacket bodies. A lower pipe head is fixed through the lower part of the outer side of the jacket bodies, and two upper pipe heads are fixed through the upper part of the outer side of the jacket bodies. Two clamps distributed vertically are fitted on the outer sides of all the jacket bodies.

[0005] Furthermore, both ends of the clamp opening are fixed with ear plates, and a bolt is inserted into both ear plates. The tail end of the bolt passes through the ear plate and is screwed with a nut.

[0006] Furthermore, the outer side of the jacket body is provided with grooves distributed vertically, and the inner ring of the clamp is inserted into the grooves at the same height.

[0007] Furthermore, a water inlet pipe is connected to the lower pipe head of any one of the jacket bodies, and a water outlet pipe is connected to the lower pipe head of the jacket body adjacent to the water inlet pipe.

[0008] Furthermore, each of the two adjacent upper pipe ends of the two jacket bodies connected to the inlet and outlet pipes is screwed with a cap; the remaining two adjacent upper pipe ends of the two jacket bodies are connected to a connecting pipe; and the remaining lower pipe ends, excluding those connected to the inlet and outlet pipes, are all screwed with caps.

[0009] Furthermore, the inner wall of the fluororubber ring is tightly attached to the outer wall of the reactor.

[0010] This utility model has the following beneficial effects: This invention solves the problem of detachable jackets being difficult to distribute fully around the reactor by setting up a jacket body, fluororubber rings, and clamps. First, a fluororubber ring is set on the inner side of the jacket body. The fluororubber ring is tightly attached to the outer wall of the reactor body to maintain a seal. At the same time, the fluororubber ring can deform to a certain extent and can be used for reactors with different outer diameters. This allows the jacket body to be spliced ​​more densely, reducing the size of the gaps and more comprehensively surrounding the outside of the reactor, resulting in a larger heat transfer area and more uniform heat transfer. It also avoids the problem of some areas of the reactor not having heat conduction due to excessive gaps between the jackets.

[0011] This invention solves the problem of excessive piping required for detachable jackets by setting up connecting pipes, inlet pipes, and outlet pipes. The inlet pipe connects to the medium inlet, and the outlet pipe discharges the medium, achieving heat circulation. The remaining jacket bodies are connected by connecting pipes, making all jacket bodies internally interconnected and allowing direct heat transfer without the need for inlet and outlet connections on each jacket body. This reduces the use of pipes, avoids pipe clutter, and more effectively ensures uniform temperature within each jacket body, preventing uneven temperature caused by independent medium supply to each jacket body.

[0012] This invention solves the problem of heat transfer efficiency being affected by the wall thickness of the inner sidewall of the jacket by setting up a jacket body. The inner wall of the jacket body is directly set with an opening, without an inner sidewall layer. Therefore, the heat medium entering the jacket body will directly transfer heat through the sidewall of the reactor into the material inside. This reduces the wall thickness of the jacket body itself, thereby reducing heat loss and making the heat transfer efficiency faster. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0014] Figure 1 A perspective view of a detachable jacket for an o-chlorobenzyl cyanide reactor; Figure 2 This is a diagram showing the connection between the jacket body, the inlet pipe, and the connecting pipe. Figure 3 This is a structural diagram of the jacket body; Figure 4 This is a schematic diagram of the inner structure of the jacket body; Figure 5 This is a cross-sectional view of the main body of the jacket; Figure 6 This is a structural diagram of the clamp.

[0015] Figure label: 1. Jacket body; 101. Inlet pipe; 102. Outlet pipe; 103. Slot; 104. Fluororubber ring; 105. Lower pipe head; 106. Upper pipe head; 2. Reactor body; 3. End cap; 4. Connecting pipe; 5. Clamp; 501. Ear plate; 502. Bolt; 503. Nut. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figure 1-6As shown, this utility model is a detachable jacket for an o-chlorobenzyl cyanide reactor, including a jacket body 1, a reactor body 2, a cap 3, a connecting pipe 4, and clamps 5. The lower outer periphery of the reactor body 2 is provided with jacket bodies 1 arranged in a ring array. Both the inner and outer sides of the jacket bodies 1 are arc surfaces, and the inner side of the jacket bodies 1 is open. A fluororubber ring 104 is provided outside the opening on the inner side of the jacket bodies 1. A lower pipe head 105 is fixed through the lower part of the outer side of the jacket bodies 1, and two upper pipe heads 106 are fixed through the upper part of the outer side of the jacket bodies 1. Two clamps 5 are provided on the outer sides of all the jacket bodies 1, arranged vertically. The inner wall of the fluororubber ring 104 is in close contact with the outer wall of the reactor. The reactor body 2 is the reactor for producing o-chlorobenzyl cyanide. The jacket body 1 is arranged in a ring array outside the reactor body 2. Because the inner and outer sides of the jacket body 1 are arc-shaped and the inner sidewall of the jacket body 1 is removed and opened, the fluororubber ring 104 on the inner side of the jacket body 1 directly contacts the outer wall of the reactor body 2 to maintain a seal. In this way, after the medium enters the jacket, the heat directly passes through the sidewall of the reactor and transfers the heat to the material inside the reactor. The heat loss and other losses are low throughout the process, and the heat transfer efficiency is higher. The lower pipe head 105 and the upper pipe head 106 on the jacket body 1 are used for conveying the medium. After all the positions of the jacket bodies 1 are distributed, they can be locked with clamps 5.

[0018] Both ends of the opening of the clamp 5 are fixed with ear plates 501, and bolts 502 are inserted in both ear plates 501. The tail end of the bolt 502 passes through the ear plate 501 and is screwed with a nut 503. The outer side of the jacket body 1 is provided with slots 103 distributed vertically, and the inner ring of the clamp 5 is inserted into the slots 103 at the same height. When installing the clamp 5, the inner ring of the clamp 5 is inserted into the slot 103, and then the bolt 502 is passed through the two ear plates 501 and locked with the nut 503, so that the opening of the clamp 5 is locked, thus locking the clamp 5 to all the sleeve bodies 1 located inside it.

[0019] A water inlet pipe 101 is connected to the lower pipe head 105 at the bottom of any one of the jacket bodies 1, and a water outlet pipe 102 is connected to the lower pipe head 105 at the bottom of the jacket body 1 adjacent to the water inlet pipe 101. The inlet pipe 101 is used to input heat medium, etc., and the outlet pipe 102 is used to output heat medium, etc. The inlet and outlet pipes realize the cycle operation. The inlet pipe 101 and the outlet pipe 102 are connected to external medium storage equipment (such as water tank).

[0020] Two adjacent upper pipe ends 106 on the upper part of the two jacket bodies 1 that are connected to the water inlet pipe 101 and the water outlet pipe 102 are screwed with end caps 3; the two adjacent upper pipe ends 106 on the upper part of the remaining two adjacent jacket bodies 1 are connected to a connecting pipe 4; the remaining lower pipe ends 105 excluding the ones connected to the water inlet pipe 101 and the water outlet pipe 102 are all screwed with end caps 3; The medium enters the inner cavity of the jacket body 1 connected to the inlet pipe 101, exits from the connecting pipe 4 connected above it, enters the adjacent jacket body 1, and repeats this process until a circle is formed. Then it enters the jacket body 1 connected to the outlet pipe 102 and is finally discharged from the outlet pipe 102.

[0021] The specific working principle of this utility model is as follows: First, the jacket body 1 is arranged in a ring array outside the reactor body 2. The fluororubber ring 104 on the inner side of the jacket body 1 directly contacts the outer wall of the reactor body 2 to maintain a seal. Then, the inner ring of the clamp 5 is embedded in the slot 103. The bolt 502 is then passed through the two ear plates 501 and locked with the nut 503 to lock the opening of the clamp 5, thus locking the clamp 5 to all the jacket bodies 1 located inside it. The water inlet pipe 101 is used to input the heat medium, etc., and the water outlet pipe 102 is used to output the heat medium, etc. The medium enters the inner cavity of the jacket body 1 connected to it from the water inlet pipe 101, and exits from the connecting pipe 4 connected above it, entering the adjacent jacket body 1. This process is repeated until a circle is formed, and then the medium enters the jacket body 1 connected to the water outlet pipe 102, and finally exits from the water outlet pipe 102. Figure 1 (The middle arrow indicates the direction of medium flow). In this way, after the medium enters the jacket, the heat passes directly through the side wall of the reactor and is transferred to the material inside the reactor. The heat loss and other losses are low throughout the process, and the heat transfer efficiency is higher.

[0022] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A detachable jacket for an o-chlorobenzyl cyanide reactor, comprising a jacket body (1), a reactor body (2), an end cap (3), a connecting pipe (4), and a clamp (5), characterized in that: The lower outer periphery of the reactor body (2) is provided with a jacket body (1) arranged in a ring array. The inner and outer sides of the jacket body (1) are both arc surfaces, and the inner side of the jacket body (1) is open. A fluororubber ring (104) is provided outside the opening on the inner side of the jacket body (1). A lower pipe head (105) is fixed through the lower part of the outer side of the jacket body (1), and two upper pipe heads (106) are fixed through the upper part of the outer side of the jacket body (1). Two clamps (5) distributed vertically are fitted on the outer side of all the jacket bodies (1).

2. The detachable jacket for an o-chlorobenzyl cyanide reactor according to claim 1, characterized in that: Both ends of the opening of the clamp (5) are fixed with ear plates (501), and bolts (502) are inserted in both ear plates (501). The tail end of the bolt (502) passes through the ear plate (501) and is screwed with a nut (503).

3. A detachable jacket for a p-chloronitrobenzene reactor according to claim 1, characterized in that: The outer side of the jacket body (1) is provided with grooves (103) distributed vertically, and the inner ring of the clamp (5) is inserted into the groove (103) at the same height.

4. A detachable jacket for an o-chlorobenzyl cyanide reactor according to claim 1, characterized in that: A water inlet pipe (101) is connected to the lower pipe head (105) of any one of the jacket bodies (1), and a water outlet pipe (102) is connected to the lower pipe head (105) of the jacket body (1) adjacent to the water inlet pipe (101).

5. A detachable jacket for an o-chlorobenzyl cyanide reactor according to claim 4, characterized in that: Two adjacent upper pipe ends (106) of the two jacket bodies (1) connected to the water inlet pipe (101) and the water outlet pipe (102) are screwed with end caps (3); two adjacent upper pipe ends (106) of the remaining two adjacent jacket bodies (1) are connected to a connecting pipe (4); and end caps (3) are screwed onto the remaining lower pipe ends (105) excluding the water inlet pipe (101) and the water outlet pipe (102).

6. A detachable jacket for an o-chlorobenzyl cyanide reactor according to claim 1, characterized in that: The inner wall of the fluororubber ring (104) is in close contact with the outer wall of the reactor.

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