Cooling, condensing and exhausting system for thermal polymerization reaction kettle
By introducing a cooling, condensing and exhaust system consisting of a low-temperature container, a heat exchanger and a high-level tank into the thermal polymerization reactor, and adopting an independent circulating water loop and circulating liquid, the problem of unstable temperature control is solved, and the product yield and reaction controllability are improved.
Patent Information
- Application Number
- CN202422628590.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The existing thermal polymerization reactor cannot maintain temperature control within a certain range, resulting in substandard performance and quality of the products generated by the reaction. The lack of a supporting cooling, condensing and exhaust system leads to a low yield rate.
A cooling, condensing and exhaust system including a kettle body, a low-temperature container, a heat exchanger and a high-level tank was designed. Through independent circulating water loops and circulation of circulating liquid, the temperature inside the kettle body was effectively controlled to avoid being too high or too low. Low-boiling-point liquid storage and evenly distributed lubricating oil were used to ensure a stable reaction environment.
The stable control of the temperature in the kettle is achieved, the yield of the product is improved, the adverse effects of temperature fluctuations on the reaction are avoided, and the controllability of the chemical reaction and the product quality are enhanced.
Smart Images
Figure CN223351657U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reactors, in particular to a cooling, condensing and exhaust system for a thermal polymerization reactor. Background Art
[0002] A reactor, broadly defined as a container for physical or chemical reactions, achieves the heating, evaporation, cooling, and low-speed mixing required by the process through structural design and parameter configuration. Reactors are commonly used in the petroleum, chemical, rubber, pesticide, dye, pharmaceutical, and food industries as pressure vessels for processes such as vulcanization, nitration, hydrogenation, hydrocarbonization, polymerization, and condensation. However, during the reaction in thermal polymerization reactors, if the temperature cannot be maintained within a certain range, the performance and quality of the resulting product will not meet standards. Furthermore, existing reactors lack the corresponding supporting systems, resulting in low product yields. Utility Model Content
[0003] The purpose of the utility model is to provide a cooling, condensing and exhaust system for a thermal polymerization reactor to solve the problems existing in the above-mentioned prior art.
[0004] The above technical objectives of the present invention are achieved through the following technical solutions:
[0005] A cooling, condensing and exhaust system for a thermal polymerization reactor, comprising a reactor body, an outlet being provided at a middle position on a top of the reactor body, an inlet being provided at the top end of the reactor body, one end of a first output pipe being fixedly mounted on the outlet, the other end of the first output pipe being connected to an inlet of a first heat exchanger, the outlet of the first heat exchanger being connected to an inlet of a second heat exchanger via a second output pipe, the outlet of the second heat exchanger being connected to an inlet of a low-temperature container via a third output pipe, the outlet of the low-temperature container being connected to an inlet of a feeding pump via a fourth output pipe, the outlet of the feeding pump being connected to an inlet of a high-level tank via a fifth output pipe, and the outlet of the high-level tank being connected to the inlet of the reactor body via an input pipe;
[0006] An evaporation main pipe is provided inside the kettle body, one end of the evaporation main pipe is fixedly installed at the inlet of the kettle body, and the other end of the evaporation main pipe is fixedly installed on the other side of the kettle body. The evaporation main pipe is horizontally arranged at the inner top end of the kettle body, and a one-way valve is fixedly installed on the side of the evaporation main pipe close to the inlet of the kettle body. A first mounting hole is provided at the middle position of the top end of the evaporation main pipe, and a liquid outlet pipe is vertically provided at the first mounting hole. The bottom end of the liquid outlet pipe is fixedly connected to the evaporation main pipe, and the top end of the liquid outlet pipe is fixedly connected to the outlet of the kettle body. A pressure relief valve is fixedly installed on the top of the liquid outlet pipe, and a plurality of evaporation tubes are equally spaced at the bottom of the evaporation main pipe.
[0007] By adopting the above technical solution, independent circulating water loops are provided in the first heat exchanger and the second heat exchanger. The independent circulating water loops are not related to the kettle body and are mainly used to discharge the waste heat in the first heat exchanger and the second heat exchanger, so that the temperature of the circulating liquid circulating in the output pipe is reduced and finally enters the low-temperature container. The circulating liquid returns to the kettle body through the feeding pump, enters the evaporation tube along the evaporation main pipe, and takes away the excess temperature in the kettle body. After boiling, it leaves the kettle body through the pressure relief valve and re-enters the first heat exchanger and the second heat exchanger in turn to perform such a cycle. This heat exchange system can effectively prevent the temperature in the reactor from being too high. At the same time, due to the low boiling point of the circulating liquid, the temperature will not be reduced too low, which provides a good environment for sufficient chemical reaction and can effectively increase the yield rate.
[0008] In a further embodiment, the low-temperature container includes an outer shell and an inner liner, an interlayer is provided between the outer shell and the inner liner, the interlayer is filled with insulation material, the inlet of the low-temperature container is provided on the top side of the low-temperature container, the outlet of the low-temperature container is provided on the bottom side of the low-temperature container, and the low-temperature container is spaced apart from the feeding pump.
[0009] By adopting the above technical solution, the low-temperature container can be either vertical or horizontal. It also has a double-layer vacuum insulated storage tank. The inner liner is made of austenitic stainless steel and the outer shell is varied. At the same time, in addition to the insulation material, a vacuum is maintained between the outer shell and the inner liner, which enables it to store low-boiling-point liquids well.
[0010] In a further embodiment, the high-level tank includes a cylinder, a head, a support, an interface pipe and an inlet hole. An inlet hole is provided on one side of the top end of the cylinder. The head is fixedly installed on the top of the cylinder. There are multiple supports, and multiple supports are welded to the middle position of the outer side of the cylinder. The interface pipe is fixedly installed in the middle position of the bottom of the cylinder. A liquid level gauge is bolted to one side of the cylinder, and the cylinder and the liquid level gauge are both arranged vertically to the ground.
[0011] By adopting the above technical solution, the high-level tank needs to maintain the uniformity of the liquid inside on the one hand, and on the other hand, the liquid level gauge next to it can be used to clearly and intuitively check how much liquid is inside the cylinder.
[0012] In a further embodiment, a plurality of microholes are evenly arranged on the bottom end of the kettle body.
[0013] By adopting the above technical solution, the micropores can be used to input lubricating oil.
[0014] In a further embodiment, an oil circuit integration module is spaced apart on one side of the kettle body, a driving device is fixedly mounted on the bottom end of the oil circuit integration module, and an oil storage tank is detachably mounted on one side of the oil circuit integration module.
[0015] By adopting the above technical solution, the lubricating oil is input from the oil storage tank to the oil circuit integrated module by the driving device, and reaches the destination through the oil circuit channel inside the oil circuit integrated module.
[0016] In a further embodiment, one end of an oil pipeline is fixedly installed in each of the microholes, and the other end of the oil pipeline is fixedly connected to the oil circuit integration module.
[0017] By adopting the above technical solution, the lubricating oil can enter the interior of the kettle through the oil pipeline and be evenly distributed to the inner wall of the kettle through the stirring device inside the kettle, forming an oil film to prevent the chemical raw materials from sticking to the inner wall of the kettle during the reaction.
[0018] In summary, the present invention has the following beneficial effects:
[0019] 1. Through the setting of the low-temperature container, the inner liner is made of thin low-temperature steel plate, which is liquid-tight and flexible. It does not become brittle under low-temperature conditions and has sufficient toughness and good processing performance, and can effectively store low-boiling-point liquids;
[0020] 2. The arrangement of the first and second heat exchangers allows the waste heat in the first and second heat exchangers to be discharged through independent circulating water loops, thereby lowering the temperature of the circulating fluid in the output pipe and ultimately storing it in a low-temperature container.
[0021] 3. Through the setting of the high-level tank, the low-boiling-point liquid in the cylinder can always be kept uniform without uneven density. On the other hand, the liquid level gauge set next to the cylinder can be used to visually and clearly check how much liquid is inside the cylinder, making the entire heat exchange process more intuitive. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is an overall schematic diagram of a cooling, condensing and exhaust system of a thermal polymerization reactor of the present invention;
[0023] Figure 2 This is a schematic diagram showing the internal structure of a low-temperature container in a new type of thermal polymerization reactor cooling, condensing and exhaust system;
[0024] Figure 3 This is a schematic diagram of the internal structure of a thermal polymerization reactor in a cooling, condensing and exhausting system of the present invention;
[0025] Figure 4 This is a structural diagram for reflecting a high-position tank in a cooling, condensing and exhaust system of a thermal polymerization reactor of the utility model.
[0026] In the figure, 1. kettle body; 2. low-temperature container; 21. outer shell; 22. liner; 23. thermal insulation material; 3. feeding pump; 4. high-level tank; 41. cylinder; 42. head; 43. support; 44. interface pipe; 45. inlet hole; 46. liquid level gauge; 5. evaporation main pipe; 6. evaporation pipe; 7. oil circuit integrated module; 8. drive device; 9. oil storage tank. DETAILED DESCRIPTION
[0027] The present invention will be described in further detail below with reference to the accompanying drawings.
[0028] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description, the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from a particular component geometry, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this specification, "plurality" means two or more, unless otherwise specifically defined in terms of the center's direction.
[0029] Example:
[0030] like Figures 1-4As shown, a cooling, condensing and exhaust system for a thermal polymerization reactor comprises a reactor body 1, an outlet is provided at the middle position of the top of the reactor body 1, a plurality of micropores are evenly provided at the bottom end of the reactor body 1, an inlet is provided at the top end of the reactor body 1, one end of a first output pipe is fixedly installed at the outlet, the other end of the first output pipe is connected with the inlet of a first heat exchanger, the outlet of the first heat exchanger is connected with the inlet of a second heat exchanger through a second output pipe, the outlet of the second heat exchanger is connected with the inlet of a low-temperature container 2 through a third output pipe, the outlet of the low-temperature container 2 is connected with the inlet of a feeding pump 3 through a fourth output pipe, the outlet of the feeding pump 3 is connected with the inlet of a high-level tank 4 through a fifth output pipe, the outlet of the high-level tank 4 is connected with the inlet of the reactor body 1 through an input pipe, an evaporation main pipe 5 is provided inside the reactor body 1, one end of the evaporation main pipe 5 is fixedly installed at the inlet of the reactor body 1, the other end of the evaporation main pipe 5 is fixedly installed on the other side of the reactor body 1, the evaporation main pipe 5 is horizontally arranged at the inner top end of the reactor body 1, and the evaporation main pipe 5 is close to the inlet of the reactor body 1. A one-way valve is fixedly installed on one side, and a first mounting hole is provided in the middle position of the top of the evaporation main pipe 5. A liquid outlet pipe is vertically provided at the first mounting hole, and the bottom end of the liquid outlet pipe is fixedly connected to the evaporation main pipe 5, and the top end of the liquid outlet pipe is fixedly connected to the outlet of the kettle body 1. A pressure relief valve is fixedly installed on the top of the liquid outlet pipe. A plurality of evaporation tubes 6 are evenly spaced at the bottom of the evaporation main pipe 5. Through the evaporation main pipe and the evaporation tubes, the circulating liquid can absorb the excess waste heat in the kettle body and discharge it through the first output pipe. After the boiling circulating liquid with waste heat enters the first heat exchanger and the second heat exchanger, it will take away part of the heat through the independent circulating water loop in the heat exchanger, so that the temperature of the boiling circulating liquid drops below the boiling point again and enters the interior of the low-temperature container. The feeding pump will re-inject the circulating liquid into the evaporation main pipe to start a new round of circulation. In this process, the internal temperature of the reactor is always maintained at a stable value, avoiding excessively high or low temperatures during the reaction process from adversely affecting the final quality of the product, thereby effectively improving the yield rate.
[0031] like Figures 1-4As shown, an oil circuit integrated module 7 is arranged at intervals on one side of the kettle body 1, a driving device 8 is fixedly installed on the bottom end of the oil circuit integrated module 7, an oil storage tank 9 is detachably installed on one side of the oil circuit integrated module 7, one end of an oil pipeline is fixedly installed in each micropore, and the other end of the oil pipeline is fixedly connected to the oil circuit integrated module 7, the high-level tank 4 includes a cylinder 41, a head 42, a support 43, an interface pipe 44 and an inlet hole 45, an inlet hole 45 is provided on one side of the top of the cylinder 41, the head 42 is fixedly installed on the top of the cylinder 41, a plurality of supports 43 are provided, and a plurality of supports 43 are welded to the middle position of the outer side of the cylinder 41, the interface pipe 44 is fixedly installed in the middle position of the bottom of the cylinder 41, and one side of the cylinder 41 is bolted and fixed with The liquid level gauge 46, the cylinder 41 and the liquid level gauge 46 are all arranged vertically with the ground. The low-temperature container 2 includes an outer shell 21 and an inner liner 22. An interlayer is arranged between the outer shell 21 and the inner liner 22, and the interlayer is filled with insulation material 23. The inlet of the low-temperature container 2 is arranged on the top side of the low-temperature container 2, and the outlet of the low-temperature container 2 is arranged on the bottom side of the low-temperature container 2. The low-temperature container 2 and the feeding pump 3 are arranged at intervals. Through the arrangement of the high-level cylinder and the low-temperature container 2, the high-level cylinder can ensure that the density of the circulating liquid is always balanced before it is injected into the evaporation main pipe 5, and the liquid level gauge 46 on the side can show whether the amount of circulating liquid inside the high-level cylinder is sufficient, and the low-temperature container 2 can properly preserve low-boiling-point liquids that need to be stored at low temperatures.
[0032] Specific implementation process: First, fill a sufficient amount of circulating liquid into the low-temperature container 2, then connect the outlet of the second heat exchanger with the inlet of the low-temperature container 2, and then start the feeding pump 3. The feeding pump 3 will continuously inject the circulating liquid into the total evaporation pipe 6. The circulating liquid in the total evaporation pipe 6 will not leave immediately. Only when the temperature inside the kettle body 1 rises and the low-boiling point circulating liquid boils, the boiling circulating liquid will leave the pressure relief valve with waste heat and enter the first heat exchanger. The waste heat carried by the circulating liquid is exchanged through the independent water circulation system of the first heat exchanger and the independent water circulation system of the second heat exchanger. The circulating liquid that has returned to low temperature enters the low-temperature container 2 again to start a new round of circulation. This circulation mode can make the temperature in the kettle body 1 neither too high nor too low, but always maintain it at a level suitable for the reaction.
[0033] In the embodiments disclosed in this utility model, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments disclosed in this utility model based on specific circumstances.
[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A cooling, condensing and exhaust system for a thermal polymerization reactor, comprising a reactor body (1), characterized in that: An outlet is provided at the middle position of the top of the kettle (1), and an inlet is provided at the top end of the kettle (1). One end of a first output pipe is fixedly installed at the outlet, and the other end of the first output pipe is connected to the inlet of a first heat exchanger. The outlet of the first heat exchanger is connected to the inlet of a second heat exchanger via a second output pipe. The outlet of the second heat exchanger is connected to the inlet of a low-temperature container (2) via a third output pipe. The outlet of the low-temperature container (2) is connected to the inlet of a feeding pump (3) via a fourth output pipe. The outlet of the feeding pump (3) is connected to the inlet of a high-level tank (4) via a fifth output pipe. The outlet of the high-level tank (4) is connected to the inlet of the kettle (1) via an input pipe. An evaporation main pipe (5) is provided inside the kettle body (1), one end of the evaporation main pipe (5) is fixedly installed at the inlet of the kettle body (1), and the other end of the evaporation main pipe (5) is fixedly installed at the other side of the kettle body (1). The evaporation main pipe (5) is horizontally arranged at the inner top end of the kettle body (1), and a one-way valve is fixedly installed on the side of the evaporation main pipe (5) close to the inlet of the kettle body (1). A first mounting hole is provided at the middle position of the top end of the evaporation main pipe (5), and a liquid outlet pipe is vertically provided at the first mounting hole. The bottom end of the liquid outlet pipe is fixedly connected to the evaporation main pipe (5), and the top end of the liquid outlet pipe is fixedly connected to the outlet of the kettle body (1). A pressure relief valve is fixedly installed on the top of the liquid outlet pipe, and a plurality of evaporation pipes (6) are evenly spaced at the bottom of the evaporation main pipe (5).
2. A thermal polymerization reactor cooling, condensing and exhaust system according to claim 1, characterized in that: The low-temperature container (2) comprises an outer shell (21) and an inner liner (22); an interlayer is provided between the outer shell (21) and the inner liner (22); the interlayer is filled with a heat-insulating material (23); an inlet of the low-temperature container (2) is provided on the top side of the low-temperature container (2); an outlet of the low-temperature container (2) is provided on the bottom side of the low-temperature container (2); and the low-temperature container (2) is spaced apart from a feeding pump (3).
3. The cooling, condensing and exhausting system for a thermal polymerization reactor according to claim 1, characterized in that: The high-level tank (4) comprises a cylinder (41), a head (42), a support (43), an interface pipe (44) and an inlet hole (45). The inlet hole (45) is provided on one side of the top end of the cylinder (41). The head (42) is fixedly mounted on the top of the cylinder (41). A plurality of the supports (43) are provided, and the plurality of the supports (43) are welded to the middle position of the outer side of the cylinder (41). The interface pipe (44) is fixedly mounted at the middle position of the bottom of the cylinder (41). A liquid level gauge (46) is bolted to one side of the cylinder (41). The cylinder (41) and the liquid level gauge (46) are both arranged vertically to the ground.
4. A cooling, condensing and exhausting system for a thermal polymerization reactor according to claim 1, characterized in that: The bottom end of the kettle body (1) is evenly provided with a plurality of microholes.
5. A cooling, condensing and exhausting system for a thermal polymerization reactor according to claim 4, characterized in that: An oil circuit integrated module (7) is spaced apart on one side of the kettle body (1), a driving device (8) is fixedly mounted on the bottom end of the oil circuit integrated module (7), and an oil storage tank (9) is detachably mounted on one side of the oil circuit integrated module (7).
6. A cooling, condensing and exhausting system for a thermal polymerization reactor according to claim 5, characterized in that: One end of an oil pipeline is fixedly installed in each microhole, and the other end of the oil pipeline is fixedly connected to the oil circuit integration module (7).