Heat exchange system for reaction kettle and reaction kettle for trichlorotoluene production
By introducing a heat exchange system into the reactor and utilizing the blowing assembly and related structures to accelerate the cooling of the reactor body, the problem of slow natural cooling of the reactor body is solved, achieving a more efficient cooling effect.
Patent Information
- Application Number
- CN202422827696.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-20
AI Technical Summary
During the production of trichlorotoluene, the temperature in the kettle cools down naturally at a slow rate, which affects the cooling efficiency after the reaction is completed.
A heat exchange system for a reactor is used. Air is blown into the heat exchange cavity through a blowing assembly, and the airflow is used to remove the heat from the reactor body, thereby accelerating the temperature reduction. The system includes the design of components such as a blowing assembly, an air inlet pipe, a heat exchange box, a filter tube, a filter screen, a limit ring, a drive shaft, a partition plate, and a heat exchange tube.
It effectively accelerates the cooling process of the temperature inside the kettle, avoids the problem of slow temperature drop caused by natural cooling, and improves cooling efficiency.
Smart Images
Figure CN223474991U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of reaction vessel technology, and more specifically, it relates to a heat exchange system for a reaction vessel and a reaction vessel for the production of trichlorotoluene. Background Technology
[0002] In the production of trichlorotoluene, toluene, chlorine, and other raw materials need to be added to the reactor. When adding toluene, it needs to be heated to a suitable temperature. After the reaction is complete, the temperature inside the reactor needs to be cooled to room temperature. The purpose of cooling is to stop the reaction and allow the trichlorotoluene to gradually solidify. However, if cooled under natural conditions, the temperature inside the reactor decreases more slowly. Utility Model Content
[0003] The purpose of this invention is to provide a heat exchange system for a reaction vessel and a reaction vessel for the production of trichlorotoluene, aiming to solve the problem that the temperature inside the vessel drops slowly under natural cooling conditions.
[0004] In a first aspect, this utility model provides a heat exchange system for a reaction vessel, including a vessel body, a heat exchange jacket, an exhaust pipe, and a blower assembly. The heat exchange jacket is fitted and fixed to the vessel body, and the heat exchange jacket and the vessel body form a heat exchange cavity. One end of the exhaust pipe is fixedly connected to the heat exchange jacket and communicates with the heat exchange cavity. The blower assembly is fixedly connected to the heat exchange jacket, and the blower assembly includes a cooling fan for blowing air into the heat exchange cavity.
[0005] The solution shown in this application embodiment, compared with the prior art, transfers the temperature inside the vessel to the vessel body, and the cooling fan blows air into the heat exchange chamber. The airflow blown into the heat exchange chamber carries away the heat on the vessel body and then flows out from the air outlet pipe, thereby accelerating the cooling inside the vessel body and avoiding the problem of the slow temperature drop inside the vessel body under natural cooling conditions.
[0006] In conjunction with the first aspect, in one possible implementation, the air-blowing assembly further includes an air inlet duct and a heat exchange box. One end of the air inlet duct is fixedly connected to the heat exchange sleeve and communicates with the heat exchange chamber. The heat exchange box is fixedly connected to the other end of the air inlet duct, and the heat exchange box is provided with an air inlet and an air outlet, the air outlet communicating with the air inlet duct. The cooling fan is fixed inside the heat exchange box and covers the air outlet.
[0007] In conjunction with the first aspect, in one possible implementation, the blower assembly further includes a filter tube and a filter screen. The filter tube passes through the air inlet. The filter screen is disposed inside the filter tube and is circumferentially fixedly connected to the inner surface of the filter tube.
[0008] In conjunction with the first aspect, in one possible implementation, the air inlet is a threaded hole, and the filter tube is provided with an external thread that is threadedly connected to the air inlet.
[0009] In conjunction with the first aspect, in one possible implementation, the blowing assembly further includes a limiting ring. The limiting ring is sleeved and fixed to the outside of the filter tube, and the limiting ring is used to compress the heat exchange box.
[0010] In conjunction with the first aspect, in one possible implementation, the blower assembly further includes a drive shaft. The drive shaft is perpendicular to the filter tube and one end is fixedly connected to the filter tube.
[0011] In conjunction with the first aspect, in one possible implementation, the air-blowing assembly further includes two partition plates and heat exchange tubes. The two partition plates are located inside and fixedly connected to the heat exchange box, dividing the heat exchange box into a cooling chamber, an air inlet chamber, and an air outlet chamber. The cooling chamber is located between the two partition plates. The air inlet chamber communicates with the air inlet hole, and the air outlet chamber communicates with the air outlet hole. Multiple heat exchange tubes are present, penetrating the two partition plates and fixedly connected to them. The heat exchange box is provided with an inlet and an outlet communicating with the cooling chamber.
[0012] In conjunction with the first aspect, in one possible implementation, the blowing assembly further includes a first valve located on the air inlet pipe. The air outlet pipe is a tee pipe, including a first branch and two second branches. The first branch is used for fixed connection to the heat exchange jacket. The heat exchange system for the reactor further includes a steam pipe, a second valve, and two third valves. One end of the steam pipe is fixedly connected to the heat exchange jacket and communicates with the heat exchange chamber. The second valve is located on the steam pipe. The two third valves are respectively located on the two second branches.
[0013] In conjunction with the first aspect, in one possible implementation, the number of the blower components is multiple, and the multiple blower components are arranged sequentially along the vertical direction.
[0014] Secondly, this utility model embodiment also provides a reaction vessel for the production of trichlorotoluene, including the heat exchange system for the reaction vessel described above.
[0015] In this embodiment, since the heat exchange system for the reactor described above is included, the problem of slow temperature drop inside the reactor under natural cooling conditions can be avoided. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the heat exchange system for the reactor provided in an embodiment of the present invention;
[0018] Figure 2 for Figure 1 An enlarged structural diagram of part A in the diagram;
[0019] Figure 3 This is a cross-sectional structural schematic diagram of the heat exchange system for a reactor provided in an embodiment of the present invention;
[0020] Figure 4 for Figure 3 An enlarged structural diagram of part B in the diagram.
[0021] In the diagram: 1. Kettle body; 2. Heat exchange jacket; 21. Heat exchange chamber; 3. Outlet pipe; 31. First branch; 32. Second branch; 40. Cooling fan; 41. Air inlet pipe; 42. Heat exchange box; 421. Air outlet; 422. Cooling chamber; 423. Air inlet chamber; 424. Air outlet chamber; 425. Water inlet; 426. Water outlet; 43. Filter pipe; 44. Filter screen; 45. Limiting ring; 46. Drive shaft; 47. Partition plate; 48. Heat exchange pipe; 49. First valve; 5. Steam pipe; 6. Second valve; 7. Third valve. Detailed Implementation
[0022] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0023] It should be further noted that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power supply systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.
[0024] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0025] The terms “length,” “width,” “up,” “down,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.
[0027] Please refer to the following: Figure 1 , Figure 3 and Figure 4 The present invention provides a heat exchange system for a reaction vessel. The heat exchange system includes a vessel body 1, a heat exchange sleeve 2, an exhaust pipe 3, and a blower assembly. The heat exchange sleeve 2 is fitted and fixed to the outside of the vessel body 1, and the heat exchange sleeve 2 and the vessel body 1 form a heat exchange cavity 21. One end of the exhaust pipe 3 is fixedly connected to the heat exchange sleeve 2 and communicates with the heat exchange cavity 21. The blower assembly is fixedly connected to the heat exchange sleeve 2, and the blower assembly includes a cooling fan 40 for blowing air into the heat exchange cavity 21.
[0028] Compared with the prior art, the heat exchange system for the reactor provided by this utility model transfers the temperature inside the reactor body 1 to the reactor body 1. The cooling fan 40 blows air into the heat exchange chamber 21. The airflow blown into the heat exchange chamber 21 carries away the heat on the reactor body 1 and then flows out from the air outlet pipe 3, thereby accelerating the cooling inside the reactor body 1 and avoiding the problem that the temperature inside the reactor body 1 drops slowly under natural cooling conditions.
[0029] In some embodiments, to achieve the cooling fan 40 blowing air into the heat exchange chamber 21, the following methods can be used: Figure 3 and Figure 4 The structure shown. See also Figure 3 and Figure 4The air-blowing assembly also includes an air inlet pipe 41 and a heat exchange box 42. One end of the air inlet pipe 41 is fixedly connected to the heat exchange sleeve 2 and communicates with the heat exchange chamber 21. The heat exchange box 42 is fixedly connected to the other end of the air inlet pipe 41. The heat exchange box 42 is provided with an air inlet hole and an air outlet hole 421, and the air outlet hole 421 communicates with the air inlet pipe 41. The cooling fan 40 is fixedly installed inside the heat exchange box 42 and covers the air outlet hole 421. The air blown out by the cooling fan 40 enters the heat exchange chamber 21 through the air outlet hole 421 and the air inlet pipe 41, and the outside air enters the heat exchange box 42 through the air inlet hole.
[0030] In some embodiments, the aforementioned blowing component may employ, for example... Figure 4 The structure shown. See also Figure 4 The air blowing assembly also includes a filter tube 43 and a filter screen 44. The filter tube 43 passes through the air inlet. The filter screen 44 is disposed inside the filter tube 43 and is circumferentially fixedly connected to the inner surface of the filter tube 43. When the cooling fan 40 is started, outside air enters the heat exchange box 42 through the filter tube 43, and the filter screen 44 can filter the air entering the heat exchange box 42.
[0031] In some embodiments, see Figure 4 The air inlet is a threaded hole, and the filter tube 43 has an external thread that connects to the air inlet, thereby fixing the filter tube 43 to the heat exchange box 42. When there is a lot of dust on the filter screen 44 and it needs to be cleaned, disconnect the threaded connection between the filter tube 43 and the heat exchange box 42, and then move the filter tube 43 to a suitable position to clean the filter screen 44.
[0032] In some embodiments, the aforementioned blowing component may employ, for example... Figure 2 The structure shown. See also Figure 2 The blowing assembly also includes a limiting ring 45. The limiting ring 45 is sleeved and fixed to the outside of the filter tube 43, and the limiting ring 45 is used to compress the heat exchange box 42. The limiting ring 45 compresses the heat exchange box 42 to prevent the threaded connection between the filter tube 43 and the heat exchange box 42 from loosening.
[0033] In some embodiments, the aforementioned blowing component may employ, for example... Figure 2 The structure shown. See also Figure 2 The blower assembly also includes a drive shaft 46. The drive shaft 46 is perpendicular to the filter tube 43 and one end is fixedly connected to the filter tube 43. It is more convenient to drive the filter tube 43 to rotate via the drive shaft 46 when threading the filter tube 43 to the heat exchange box 42 or disconnecting the threaded connection between the filter tube 43 and the heat exchange box 42.
[0034] In some embodiments, the aforementioned blowing component may employ, for example... Figure 4 The structure shown. See also Figure 4 The blowing assembly further includes two partition plates 47 and heat exchange tubes 48. The two partition plates 47 are located inside and fixedly connected to the heat exchange box 42, dividing the heat exchange box 42 into a cooling chamber 422, an air inlet chamber 423, and an air outlet chamber 424. The cooling chamber 422 is located between the two partition plates 47. The air inlet chamber 423 communicates with the air inlet hole, and the air outlet chamber 424 communicates with the air outlet hole 421. Multiple heat exchange tubes 48 penetrate the two partition plates 47 and are fixedly connected to them. The heat exchange box 42 is provided with a water inlet 425 and a water outlet 426 communicating with the cooling chamber 422. Cooling water can be introduced into the heat exchange box 42 through the inlet 425 and discharged through the outlet 426. Meanwhile, outside air enters the air inlet chamber 423, then passes through multiple heat exchange tubes 48 into the air outlet chamber 424. During this process, the air passing through the heat exchange tubes 48 is cooled by the cooling water. When the cooled airflow enters the heat exchange chamber 21, it can better cool the vessel body 1, thus further avoiding the problem of slow temperature decrease inside the vessel body 1 under natural cooling conditions.
[0035] In some embodiments, see Figure 1 The blowing assembly further includes a first valve 49, which is disposed on the air inlet pipe 41. The air outlet pipe 3 is a three-way pipe, including a first branch 31 and two second branches 32. The first branch 31 is used for fixed connection with the heat exchange sleeve 2. The heat exchange system for the reactor also includes a steam pipe 5, a second valve 6, and two third valves 7. One end of the steam pipe 5 is fixedly connected to the heat exchange sleeve 2 and communicates with the heat exchange chamber 21. The second valve 6 is disposed on the steam pipe 5. The two third valves 7 are respectively disposed on the two second branches 32. When the first valve 49 and the first third valve 7 are open, and the second valve 6 and the second third valve 7 are closed, the cooling fan 40 blows air into the heat exchange chamber 21, and the generated airflow flows out from the second branch 32 where the first third valve 7 is located; when the first valve 49 and the first third valve 7 are closed, and the second valve 6 and the second third valve 7 are open, steam is introduced into the heat exchange chamber 21 through the steam pipe 5, thereby heating the material in the vessel 1, and the steam flows out from the second branch 32 where the second third valve 7 is located.
[0036] In this embodiment, the steam pipe 5 and the blowing assembly are located on one side of the axis of the vessel body 1, and the exhaust pipe 3 is located on the other side of the axis of the vessel body 1. The steam pipe 5 is connected to the bottom of the heat exchange chamber 21. When steam flows out from one of the second branches 32, the moisture in the steam can be condensed and recycled.
[0037] In some embodiments, see Figure 1 The number of the blowing components is multiple, and the multiple blowing components are arranged sequentially in the vertical direction, thereby accelerating the temperature drop inside the vessel 1.
[0038] Based on the same inventive concept, this application also provides a reaction vessel for the production of trichlorotoluene, including the above-mentioned heat exchange system for the reaction vessel, so as to avoid the problem that the temperature inside the vessel body 1 drops slowly under natural cooling conditions.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heat exchange system for a reaction vessel, characterized in that, include: The vessel body; A heat exchange sleeve is fitted and fixed to the outside of the vessel body, and the heat exchange sleeve and the vessel body form a heat exchange cavity; The air outlet pipe has one end fixedly connected to the heat exchange jacket and communicates with the heat exchange chamber. A blower assembly is fixedly connected to the heat exchange jacket, and the blower assembly includes a cooling fan for blowing air into the heat exchange chamber; The blowing assembly also includes: An air inlet pipe, one end of which is fixedly connected to the heat exchange jacket and communicates with the heat exchange chamber; A heat exchange box is fixedly connected to the other end of the air inlet pipe. The heat exchange box is provided with an air inlet and an air outlet, and the air outlet is connected to the air inlet pipe. The cooling fan is fixed inside the heat exchange box and covers the air outlet. A filter tube is inserted into the air inlet hole; A filter screen is disposed inside the filter tube and is circumferentially fixedly connected to the inner surface of the filter tube; The air inlet is a threaded hole, and the filter tube is provided with an external thread that is threadedly connected to the air inlet. A limiting ring is fitted and fixed to the outside of the filter tube, and the limiting ring is used to compress the heat exchange box.
2. The heat exchange system for a reactor as described in claim 1, characterized in that, The blowing assembly also includes: The drive shaft is perpendicular to the filter tube and one end is fixedly connected to the filter tube.
3. The heat exchange system for a reactor as described in claim 1, characterized in that, The blowing assembly also includes: Two partition plates are located inside the heat exchange box and are fixedly connected to the heat exchange box to divide the heat exchange box into a cooling chamber, an air inlet chamber and an air outlet chamber. The cooling chamber is located between the two partition plates. The air inlet chamber is connected to the air inlet hole and the air outlet chamber is connected to the air outlet hole. There are multiple heat exchange tubes, and each heat exchange tube penetrates two partition plates and is fixedly connected to the two partition plates. The heat exchange box is equipped with an inlet and an outlet that communicate with the cooling chamber.
4. The heat exchange system for a reactor as described in claim 3, characterized in that, The blowing assembly further includes a first valve, which is disposed on the air inlet pipe. The air outlet pipe is a three-way pipe, including a first branch and two second branches. The first branch is used for fixed connection with the heat exchange jacket. The heat exchange system for the reactor further includes: A steam pipe, one end of which is fixedly connected to the heat exchange jacket and communicates with the heat exchange chamber; The second valve is located on the steam pipe; Two third valves are located on the two second branches respectively.
5. The heat exchange system for a reactor as described in claim 1, characterized in that, The number of the blower components is multiple, and the multiple blower components are arranged sequentially along the vertical direction.
6. A reaction vessel for the production of trichlorotoluene, characterized in that, Including the heat exchange system for a reactor as described in any one of claims 1-5.