Sulfonation reaction waste heat recovery device

Abstract

The utility model discloses a sulfonation reaction waste heat recovery device which comprises an installation cylinder and a heat exchanger, and the installation cylinder is arranged on one side of the heat exchanger. The heat conduction mechanism is fixedly connected and communicated with one end of the heat exchanger; in the heating process of the reaction kettle, the disc type liquid storage box, the spiral liquid guide pipe and the heat conduction cover are attached to the bottom, the side face and the top of the reaction kettle respectively, and no matter which part of the reaction kettle is heated, heat emitted by the reaction kettle can be taken away by a heat conduction medium flowing in the adjacent disc type liquid storage box or the spiral liquid guide pipe or the heat conduction cover. Therefore, not only can the cooling effect on the reaction kettle be improved so as to reduce the condition of overweight sulfonation reaction, but also the effective absorption rate of heat can be improved, so that the effective heat exchange rate of a subsequent heat exchanger is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfonation reaction waste heat treatment, in particular to a sulfonation reaction waste heat recovery device. Background Art

[0002] Alkylbenzene sulfonic acid is an important anionic surfactant. When preparing alkylbenzene sulfonic acid, alkylbenzene and sulfur trioxide need to be subjected to a sulfonation reaction to convert alkylbenzene into alkylbenzene sulfonic acid. During the sulfonation reaction, within a certain temperature range, the sulfonation rate will accelerate with the increase of temperature. When the temperature rises beyond the specified range, the sulfonation reaction is likely to cause an over-heavy condition, that is, the phenomenon of over-sulfonation. At this time, some side reactions may occur in the sulfonation reaction, resulting in a decrease in product quality and a decrease in yield. In order to effectively utilize the heat generated by the sulfonation reaction and prevent the phenomenon of over-sulfonation caused by excessively high temperatures, the heat is often recovered.

[0003] The utility model patent with announcement number CN218764780U discloses a waste heat recovery device for sulfonation reaction. The device can realize heating and heat preservation as well as heat dissipation and cooling of the reactor by heat conduction between the heat conduction mechanism and the heat transfer mechanism. During heat dissipation and cooling, the cold water in the water tank can be slowly heated up, which can be used for subsequent cleaning of the reactor and other reaction devices. The waste heat generated by the reaction can be recovered and utilized, which can more effectively save energy.

[0004] Although the above-mentioned device reduces the temperature during the sulfonation reaction by recycling waste heat to ensure that the sulfonation reaction always operates within the specified range, since the above-mentioned patent clearly states that "the front view of the heat pipe is U-shaped and the top view is S-shaped. Such a structure can make the heat pipe fully contact with the bottom surface and the left and right sides of the heat transfer chamber, which is beneficial to improve the efficiency of heat conduction", this can only increase the indirect contact area between the heat pipe and the reactor. The distance between the front and rear sides and the top of the reactor and the heat pipe is still far, which will undoubtedly reduce the heat conduction efficiency between the reactor and the heat pipe, and the heat exchange rate is still relatively low. Utility Model Content

[0005] The purpose of the utility model is to provide a sulfonation reaction waste heat recovery device in order to solve the above problems, thereby improving the problems of small contact area between the existing sulfonation reaction waste heat recovery device and the reactor and low heat exchange rate.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme. A sulfonation reaction waste heat recovery device comprises: a mounting cylinder and a heat exchanger, wherein the mounting cylinder is arranged on one side of the heat exchanger; a heat-conducting mechanism, wherein the heat-conducting mechanism is fixedly connected and communicated with one end of the heat exchanger, and the other end of the heat-conducting mechanism penetrates the mounting cylinder and is fixedly connected and communicated with the heat exchanger; the heat-conducting mechanism comprises an infusion pump fixedly connected and communicated with one end of the heat exchanger, and the other end of the infusion pump is fixedly connected and communicated with a heat-conducting component, and the other end of the heat-conducting component penetrates the mounting cylinder and is fixedly connected and communicated with the heat exchanger.

[0007] Preferably, the heat-conducting component includes a disc-type liquid storage box fixedly connected and connected to the other end of the infusion pump, the other end of the disc-type liquid storage box penetrates into the interior of the mounting tube and is fixedly connected and connected to the inner bottom wall of the mounting tube, the top of the disc-type liquid storage box is fixedly connected and connected to a spiral liquid guide tube, the top of the spiral liquid guide tube is plugged into and connected to a heat-conducting cover, the top of the heat-conducting cover is fixedly connected and connected to a heat-conducting tube fixedly connected and connected to the heat exchanger, during the heating process of the reactor, the disc-type liquid storage box, the spiral liquid guide tube and the heat-conducting cover are respectively attached to the bottom, side and top of the reactor, no matter which part of the reactor is heated, the heat emitted by the reactor will be taken away by the heat-conducting medium flowing inside the adjacent disc-type liquid storage box or the spiral liquid guide tube or the heat-conducting cover, which can not only improve the cooling effect on the reactor to reduce the situation where the sulfonation reaction is too heavy, but also improve the effective absorption rate of heat, thereby improving the effective heat exchange rate of the subsequent heat exchanger.

[0008] Preferably, the connecting point between the spiral liquid conduit and the heat conductive cover is arranged at the lowest point of the heat conductive cover, and the connecting point between the heat conductive cover and the heat conductive pipe is arranged at the highest point of the heat conductive cover, which enables the heat conductive medium to fill the interior of the heat conductive cover before flowing into the heat conductive pipe, effectively prolonging the passing time of the heat conductive medium inside the heat conductive cover, so as to achieve the purpose of absorbing more heat.

[0009] Preferably, thermal pads are provided on the top of the disc-type liquid storage box and the inner sides of the spiral liquid conduit and the thermal cover. The thermal pads are asbestos mesh material components, which can make the disc-type liquid storage box, the spiral liquid conduit and the thermal cover more evenly heated, thereby increasing the range of indirect contact between the reactor and the heat-conducting medium.

[0010] Preferably, the thermal pad disposed on the top of the disc-shaped liquid storage box and the inner side of the spiral liquid conduit is an integrally formed design, which can increase the overall strength of the thermal pad on the top of the disc-shaped liquid storage box and the inner side of the spiral liquid conduit, thereby achieving the effect of extending the service life.

[0011] Preferably, the heat pipe is an EPDM rubber material component, and the surface of the heat pipe is covered with an insulation sleeve, which not only makes it easier for workers to move the heat cover, but also enables the heat pipe to have a good insulation effect, reducing the heat dissipation rate of the heat conducting medium.

[0012] Preferably, an insulation pad is provided on the outside of the thermal cover, and the insulation sleeve and the insulation pad are both glass wool material components, which can achieve good thermal insulation effect, not only further reducing the heat dissipation rate of the thermal medium, but also reducing the probability of surrounding personnel being scalded by the thermal cover.

[0013] Preferably, the top of the spiral liquid guiding tube is fixedly connected and communicated with a sealing tube, and the bottom of the heat-conducting cover is fixedly connected and communicated with a one-way valve plugged with the sealing tube. The blocking direction of the one-way valve is from top to bottom. When the staff removes the heat-conducting cover, the one-way valve can prevent the heat-conducting medium inside the heat-conducting cover from leaking out, thereby reducing the pollution of the heat-conducting medium to the external environment; when the one-way valve is plugged with the sealing tube, the heat-conducting medium can normally enter the heat-conducting cover to ensure the normal circulation of the heat-conducting medium.

[0014] The beneficial effects of the utility model are:

[0015] During the sulfonation reaction, when the reactor is heated, the disc-type liquid storage box, the spiral liquid guide tube and the heat-conducting cover are respectively attached to the bottom, side and top of the reactor. No matter which part of the reactor is heated, the heat emitted by the reactor will be taken away by the heat-conducting medium flowing inside the adjacent disc-type liquid storage box or spiral liquid guide tube or heat-conducting cover. This can not only improve the cooling effect of the reactor to reduce the excessive sulfonation reaction, but also improve the effective absorption rate of heat, thereby improving the effective heat exchange rate of the subsequent heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the infusion pump, the heat transfer component and the heat exchanger in the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the installation tube, the infusion pump and the heat-conducting component in the utility model;

[0019] Figure 4 It is an exploded schematic diagram of the heat conducting component in the utility model.

[0020] In the figure: 1. mounting cylinder; 2. heat exchanger; 3. heat conduction mechanism; 31. infusion pump; 32. heat conduction assembly; 321. disc-type liquid storage box; 322. spiral liquid conduction tube; 323. heat conduction cover; 324. heat conduction tube; 325. heat conduction pad; 326. insulation sleeve; 327. insulation pad; 328. sealing tube; 329. one-way valve. DETAILED DESCRIPTION

[0021] 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.

[0022] When implementing: Figure 1-4 As shown, a sulfonation reaction waste heat recovery device includes a mounting tube 1 and a heat exchanger 2, wherein the mounting tube 1 is arranged on one side of the heat exchanger 2; a heat conducting mechanism 3, wherein the heat conducting mechanism 3 is fixedly connected and communicated with one end of the heat exchanger 2, and the other end of the heat conducting mechanism 3 passes through the mounting tube 1 and is fixedly connected with the heat exchanger 2, and the heat conducting mechanism 3 is communicated with the inner cavity of the heat exchanger 2 through a pipeline, and the heat conducting mechanism 3 includes an infusion pump 31 fixedly connected and communicated with one end of the heat exchanger 2, and the other end of the infusion pump 31 is fixedly connected and communicated with a heat conducting component 32, and the other end of the heat conducting component 32 passes through the mounting tube 1 and is fixedly connected and communicated with the heat exchanger 2. It should be noted that the communication mentioned in this specification refers to two components whose inner cavities are connected or connected to each other, and the medium in one component can enter the other component.

[0023] like Figure 2 , Figure 3 and Figure 4As shown, the heat-conducting assembly 32 includes a disc-shaped liquid storage box 321 fixedly connected and connected to the other end of the infusion pump 31, the other end of the disc-shaped liquid storage box 321 penetrates into the interior of the mounting tube 1 and is fixedly connected and connected to the inner bottom wall of the mounting tube 1, the top of the disc-shaped liquid storage box 321 is fixedly connected and connected to a spiral liquid guide tube 322, the top of the spiral liquid guide tube 322 is plugged in and connected to a heat-conducting cover 323, the top of the heat-conducting cover 323 is fixedly connected and connected to a heat-conducting pipe 324 fixedly connected and connected to the heat exchanger 2; the connecting point between the spiral liquid guide tube 322 and the heat-conducting cover 323 is set at the lowest point of the heat-conducting cover 323, and the connecting point between the heat-conducting cover 323 and the heat-conducting pipe 324 is set at the highest point of the heat-conducting cover 323; the disc-shaped liquid storage box 321 The top of the disc-shaped liquid storage box 321 and the inner side of the spiral liquid conduit 322 and the heat-conducting cover 323 are all provided with a heat-conducting pad 325, which is a component of asbestos mesh material; the heat-conducting pad 325 arranged on the top of the disc-shaped liquid storage box 321 and the inner side of the spiral liquid conduit 322 is an integrated design; the heat-conducting pipe 324 is a component of EPDM rubber material, and the surface of the heat-conducting pipe 324 is covered with a heat-insulating sleeve 326; the outer side of the heat-conducting cover 323 is provided with a heat-insulating pad 327, and the heat-insulating sleeve 326 and the heat-insulating pad 327 are both components of glass wool material; the top of the spiral liquid conduit 322 is fixedly connected and connected with a sealing pipe 328, and the bottom of the heat-conducting cover 323 is fixedly connected and connected with a one-way valve 329 plugged with the sealing pipe 328, and the blocking direction of the one-way valve 329 is from top to bottom. The heat-insulating pad 327 is provided with a hole or a avoidance gap for the feed pipe and the gas pipe mouth on the reactor to pass through.

[0024] During the operation of the reactor, the infusion pump 31 transports the heat-conducting medium in the heat exchanger 2 to the disc-type liquid storage box 321. When the heat-conducting medium fills the interior of the disc-type liquid storage box 321, the excess heat-conducting medium enters the spiral liquid conduit 322. When the interior of the spiral liquid conduit 322 is also filled with the heat-conducting medium, the excess heat-conducting medium enters the heat-conducting cover 323 through the one-way valve 329. When the interior of the heat-conducting cover 323 is also filled with the heat-conducting medium, the excess heat-conducting medium flows into the heat-conducting pipe 324, and the heat-conducting pipe 324 transports the heat-conducting medium into the heat exchanger 2 for heat exchange operation.

[0025] When the reactor is heated, the disc-shaped liquid storage box 321, the spiral liquid conduit 322 and the heat-conducting cover 323 are respectively fitted with the bottom, side and top of the reactor. No matter which part of the reactor is heated, the heat emitted by the reactor will be taken away by the heat-conducting medium flowing inside the adjacent disc-shaped liquid storage box 321 or the spiral liquid conduit 322 or the heat-conducting cover 323. This can not only improve the cooling effect of the reactor to reduce the excessive sulfonation reaction, but also improve the effective absorption rate of heat, thereby improving the effective heat exchange rate of the subsequent heat exchanger 2.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sulfonation reaction waste heat recovery device, characterized in that: include: A mounting cylinder (1) and a heat exchanger (2), wherein the mounting cylinder (1) is arranged on one side of the heat exchanger (2); A heat conducting mechanism (3), wherein the heat conducting mechanism (3) is fixedly connected to one end of the heat exchanger (2), and the other end of the heat conducting mechanism (3) passes through the mounting tube (1) and is fixedly connected to the heat exchanger (2); The heat conduction mechanism (3) comprises an infusion pump (31) fixedly connected to and connected to one end of the heat exchanger (2); the other end of the infusion pump (31) is fixedly connected to and connected to a heat conduction component (32); the other end of the heat conduction component (32) passes through the mounting tube (1) and is fixedly connected to and connected to the heat exchanger (2).

2. The sulfonation reaction waste heat recovery device according to claim 1, characterized in that: The heat-conducting component (32) comprises a disc-shaped liquid storage box (321) fixedly connected to and connected to the other end of the infusion pump (31); the other end of the disc-shaped liquid storage box (321) penetrates into the interior of the mounting tube (1) and is fixedly connected to and connected to the inner bottom wall of the mounting tube (1); the top of the disc-shaped liquid storage box (321) is fixedly connected to and connected to a spiral liquid guide tube (322); the top of the spiral liquid guide tube (322) is plugged into and connected to a heat-conducting cover (323); the top of the heat-conducting cover (323) is fixedly connected to and connected to a heat-conducting tube (324) fixedly connected to and connected to the heat exchanger (2).

3. The sulfonation reaction waste heat recovery device according to claim 2, characterized in that: The connection point between the spiral liquid guide tube (322) and the heat-conducting cover (323) is arranged at the lowest point of the heat-conducting cover (323), and the connection point between the heat-conducting cover (323) and the heat-conducting tube (324) is arranged at the highest point of the heat-conducting cover (323).

4. The sulfonation reaction waste heat recovery device according to claim 2, characterized in that: The top of the disc-shaped liquid storage box (321) and the inner sides of the spiral liquid guide tube (322) and the heat-conducting cover (323) are all provided with a heat-conducting pad (325), and the heat-conducting pad (325) is a member made of asbestos mesh material.

5. The sulfonation reaction waste heat recovery device according to claim 4, characterized in that: The heat conductive pad (325) arranged on the top of the disc-shaped liquid storage box (321) and the inner side of the spiral liquid guide tube (322) is an integrally formed structure.

6. The sulfonation reaction waste heat recovery device according to claim 2, characterized in that: The heat conducting pipe (324) is a component made of EPDM rubber material, and a heat insulating sleeve (326) is provided on the surface of the heat conducting pipe (324).

7. The sulfonation reaction waste heat recovery device according to claim 6, characterized in that: A heat-insulating pad (327) is arranged on the outside of the heat-conducting cover (323); the heat-insulating sleeve (326) and the heat-insulating pad (327) are both glass wool material components.

8. The sulfonation reaction waste heat recovery device according to claim 2, characterized in that: The top of the spiral liquid guide tube (322) is fixedly connected and communicated with a sealing tube (328), and the bottom of the heat conductive cover (323) is fixedly connected and communicated with a one-way valve (329) plugged into the sealing tube (328), wherein the blocking direction of the one-way valve (329) is from top to bottom.

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