A fluorescent whitening agent high-temperature high-pressure synthesis device with a monitoring mechanism
By introducing components such as pressure relief valves and semiconductor cooling plates into the high-temperature and high-pressure synthesis device for fluorescent whitening agents, combined with temperature sensor monitoring and control, the safety risks and temperature instability problems of traditional devices have been solved, and the stable operation of the reactor and safe production have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI PROVINCE BEISHIDA IND CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional high-temperature and high-pressure synthesis equipment for fluorescent whitening agents poses safety risks, easily leading to reactor explosions and environmental pollution. Furthermore, unstable temperature control affects production safety and quality.
The reactor employs components such as a pressure relief valve, a semiconductor cooling plate, a copper plate, a circulating pump, a thin tube, and heat dissipation fins. Combined with a temperature sensor to monitor the reactor temperature, the reactor is kept at a stable internal temperature by heating with an electric heating tube or cooling with a semiconductor cooling plate.
This effectively avoids safety accidents caused by abnormal temperatures, ensures stable operation of the reactor, guarantees production safety and product quality, and improves reaction efficiency.
Smart Images
Figure CN224388719U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluorescent whitening agent production technology, and in particular to a high-temperature and high-pressure synthesis device for fluorescent whitening agents with a monitoring mechanism. Background Technology
[0002] In the fine chemical industry, optical brighteners, as an important class of functional additives, are widely used in industries such as textiles, papermaking, and detergents. They effectively counteract the yellowish tint on the surface of objects by absorbing invisible ultraviolet light and emitting visible blue or blue-violet light, significantly improving the whiteness and brightness of the products. Currently, the synthesis of mainstream optical brighteners such as stilbene and benzoxazole relies heavily on high-temperature and high-pressure reactions to promote complex condensation and cyclization reactions in organic processes. These reaction conditions significantly increase the reaction rate and improve product yield.
[0003] Traditional high-temperature and high-pressure synthesis devices for fluorescent whitening agents have certain limitations in practical applications. In particular, the extreme reaction environment of high temperature poses huge safety risks. If the temperature gets out of control during the reaction, it can easily lead to the failure of the product synthesis. In severe cases, it may even cause accidents such as reactor explosion and raw material leakage, which not only threaten the lives of production personnel, but also cause serious environmental pollution. Therefore, with the continuous improvement of the chemical industry's requirements for safe production, product quality stability and production efficiency, a high-temperature and high-pressure synthesis device for fluorescent whitening agents with a monitoring mechanism has been designed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-temperature and high-pressure synthesis device for fluorescent whitening agents with a monitoring mechanism.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-temperature, high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism includes a reaction vessel. A heating sleeve is fixedly fitted onto the bottom of the outer wall of the reaction vessel. An oil inlet pipe is provided on one side of the top of the heating sleeve, and an oil outlet pipe is provided at the bottom of the heating sleeve. Valves are fixedly installed on both the oil inlet and outlet pipes. Three support legs are fixedly connected at equal intervals around the bottom of the heating sleeve. A mounting bracket is fixedly connected to one side of the outer wall of the heating sleeve, and a copper plate is fixedly connected to the outside of the mounting bracket. A semiconductor cooling plate is fixedly connected to the outside of the copper plate, and the semiconductor cooling plate is positioned close to... The side near the copper plate is the cooling surface, and the other side of the semiconductor cooling plate is fixedly connected to heat dissipation fins. Multiple thin tubes are fixedly embedded at equal intervals on the copper plate, and multiple round holes adapted to the thin tubes are opened on the copper plate. The top of the multiple thin tubes is fixedly connected to the same second horizontal tube, and an oil drain pipe is fixedly connected to the middle of the top of the second horizontal tube. The oil drain pipe is connected to the top of the heating sleeve. Through the circulation and cooling of the heat transfer oil, rapid cooling can be achieved, so that the temperature inside the reactor will not rise again and will be maintained at a stable reaction temperature, ensuring the safety and stability of the reactor.
[0007] Preferably, a circulation pump is fixedly connected to the outer wall of the heating sleeve near the bottom of the mounting bracket, and an oil suction pipe is fixedly connected to the input end of the circulation pump, with the other end of the oil suction pipe connected to the bottom of the heating sleeve. A first horizontal pipe is fixedly connected to the output end of the circulation pump, and the top of the first horizontal pipe is connected to multiple thin pipes respectively.
[0008] Preferably, multiple heating tubes are fixedly connected at equal intervals at the bottom edge of the heating sleeve.
[0009] Preferably, a feed pipe is provided at one end of the top of the reactor, and a sealing cap is screwed onto the feed pipe. A pressure relief valve is fixedly embedded at the other end of the top of the reactor to ensure that the pressure inside the reactor is stable. A discharge pipe is fixedly connected to the bottom of the reactor, and a control valve is fixedly installed on the discharge pipe.
[0010] Preferably, a drive motor is fixedly connected to the middle of the top of the reaction vessel, and a rotating rod is fixedly connected to the output end of the drive motor through the reaction vessel. A stirring blade is fixedly connected to the bottom of the rotating rod. The stirring efficiency can be improved by stirring with the stirring blade.
[0011] Preferably, a controller is fixedly connected to one side of the outer side of the reactor, and a temperature sensor is fixedly connected to the top of the inner side of the reactor. The controller is electrically connected to the temperature sensor, the heating element, the circulating pump, the semiconductor cooling plate, and the drive motor.
[0012] The beneficial effects of this utility model are as follows:
[0013] By employing technologies such as pressure relief valves, semiconductor cooling plates, copper plates, circulating pumps, thin tubes, and heat dissipation fins, and using temperature sensors to detect temperature changes inside the reactor, the heating element stops working when the temperature rises abnormally. The semiconductor cooling plate and copper plate then cool the circulating heat transfer oil, rapidly maintaining a stable temperature inside the reactor. This prevents abnormal internal temperatures from affecting the production of fluorescent whitening agents and maintains reactor stability, effectively solving the problem of abnormal temperature affecting production and safety mentioned in the background technology. It achieves the ability to quickly maintain a stable internal temperature in the reactor, preventing abnormal temperature rises from affecting fluorescent whitening agent production, maintaining stable reactor operation, and ensuring safe and reliable equipment operation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a high-temperature and high-pressure synthesis device for fluorescent whitening agents with a monitoring mechanism proposed in this utility model;
[0015] Figure 2 This invention proposes a high-temperature, high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism. Figure 1 An enlarged structural diagram at point A;
[0016] Figure 3 This is a cross-sectional schematic diagram of the heating sleeve of a high-temperature and high-pressure synthesis device for fluorescent whitening agents with a monitoring mechanism proposed in this utility model.
[0017] Figure 4 This is a cross-sectional structural diagram of the reactor of a high-temperature and high-pressure synthesis device for fluorescent whitening agents with a monitoring mechanism proposed in this utility model.
[0018] In the diagram: 1. Reactor; 101. Pressure relief valve; 102. Feed pipe; 103. Discharge pipe; 104. Control valve; 2. Drive motor; 201. Rotary rod; 202. Stirring blade; 3. Heating sleeve; 301. Oil inlet pipe; 302. Support leg; 303. Oil outlet pipe; 304. Electric heating element; 4. Mounting bracket; 401. Copper plate; 402. Semiconductor cooling plate; 403. Heat dissipation fins; 5. Oil suction pipe; 501. Circulation pump; 502. First horizontal pipe; 503. Thin pipe; 504. Second horizontal pipe; 505. Oil discharge pipe. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figures 1-4A high-temperature, high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism includes a reactor 1. A heating sleeve 3 is fixedly fitted onto the bottom of the outer wall of the reactor 1. An oil inlet pipe 301 is provided on one side of the top of the heating sleeve 3, and an oil outlet pipe 303 is provided at the bottom of the heating sleeve 3. Valves are fixedly installed on both the oil outlet pipe 303 and the oil inlet pipe 301. Three support legs 302 are fixedly connected at equal intervals around the bottom circumference of the heating sleeve 3. A mounting bracket 4 is fixedly connected to one side of the outer wall of the heating sleeve 3, and a copper plate 401 is fixedly connected to the outside of the mounting bracket 4. A semiconductor cooling plate 402 is fixedly connected to the outside of the copper plate 401. Furthermore, the side of the semiconductor cooling plate 402 closest to the copper plate 401 is the cooling surface, and the other side of the semiconductor cooling plate 402 is fixedly connected to a heat dissipation fin 403. Multiple thin tubes 503 are fixedly embedded at equal intervals on the copper plate 401. Multiple round holes adapted to the thin tubes 503 are opened on the copper plate 401. The top of the multiple thin tubes 503 is fixedly connected to the same second horizontal tube 504, and an oil drain pipe 505 is fixedly connected to the middle of the top of the second horizontal tube 504. The oil drain pipe 505 is connected to the top of the heating sleeve 3. The multiple thin tubes 503 can disperse the heat transfer oil and facilitate heat exchange with the copper plate 401.
[0021] In this utility model, a circulation pump 501 is fixedly connected to the outer wall of the heating sleeve 3 near the bottom of the mounting bracket 4, and an oil suction pipe 5 is fixedly connected to the input end of the circulation pump 501, and the other end of the oil suction pipe 5 is connected to the bottom of the heating sleeve 3. A first horizontal pipe 502 is fixedly connected to the output end of the circulation pump 501, and the top of the first horizontal pipe 502 is connected to a plurality of thin pipes 503 respectively.
[0022] In this invention, multiple heating tubes 304 are fixedly connected at equal intervals at the bottom edge of the heating sleeve 3. The heat transfer oil can be heated by the multiple heating tubes 304, thereby raising the temperature inside the reaction vessel 1.
[0023] In this invention, a feed pipe 102 is provided at one end of the top of the reactor 1, and a sealing cap is screwed onto the feed pipe 102. A pressure relief valve 101 is fixedly embedded at the other end of the top of the reactor 1. The pressure relief valve 101 can ensure the stability of the pressure inside the reactor 1. A discharge pipe 103 is fixedly connected to the bottom of the reactor 1, and a control valve 104 is fixedly installed on the discharge pipe 103. The reaction product can be discharged through the discharge pipe 103.
[0024] In this invention, a drive motor 2 is fixedly connected to the middle of the top of the reaction vessel 1, and a rotating rod 201 is fixedly connected to the output end of the drive motor 2 through the reaction vessel 1. A stirring blade 202 is fixedly connected to the bottom of the rotating rod 201. The stirring blade 202 is driven to rotate by the drive motor 2, which can stir the raw materials and improve the reaction efficiency.
[0025] In this invention, a controller is fixedly connected to one side of the outer side of the reactor 1, and a temperature sensor is fixedly connected to the top of the inner side of the reactor 1. The controller is electrically connected to the temperature sensor, the heating element 304, the circulating pump 501, the semiconductor cooling plate 402, and the drive motor 2.
[0026] Working Principle: In operation, heat transfer oil is introduced into the heating sleeve 3 through the oil inlet pipe 301, and the reaction raw materials are introduced into the reaction vessel 1 through the feed pipe 102. The sealing cap of the feed pipe 102 is then secured. Multiple heating elements 304 are activated to heat the heat transfer oil inside the heating sleeve 3, thereby increasing the temperature and pressure of the raw materials within the sealed reaction vessel 1 to produce the desired product. The pressure relief valve 101 prevents excessive pressure buildup inside the reaction vessel 1, protecting the safety of the reaction vessel 1 and the working environment. An internal temperature sensor detects whether the temperature inside the reaction vessel 1 is normal. When the temperature is low, the power of the heating elements 304 is increased; when the temperature rises abnormally, the power is controlled... Multiple heating elements 304 stop working, and the circulation pump 501 and the semiconductor cooling plate 402 are turned on. The circulation pump 501 draws the heat transfer oil inside the heating sleeve 3 through the oil suction pipe 5 and returns it to the heating sleeve 3 through the oil discharge pipe 505. The thin pipe 503 can divert the drawn heat transfer oil, allowing it to cool down better at the copper plate 401. The semiconductor cooling plate 402 can continuously cool the copper plate 401, ensuring that all the heat transfer oil flowing through the copper plate 401 is cooled down and returns to the heating sleeve 3. The cooling of the heat transfer oil gradually cools down the inside of the reactor 1, ensuring that the reactor 1 maintains a stable temperature. The temperature sensor monitors the internal state of the reactor 1 in real time to ensure the safety of the reactor 1.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high-temperature, high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism, comprising a reaction vessel (1), characterized in that, A heating sleeve (3) is fixedly fitted on the bottom of the outer wall of the reactor (1). An oil inlet pipe (301) is provided on one side of the top of the heating sleeve (3), and an oil outlet pipe (303) is provided on the bottom of the heating sleeve (3). Valves are fixedly installed on both the oil outlet pipe (303) and the oil inlet pipe (301). Three support legs (302) are fixedly connected at equal intervals around the bottom of the heating sleeve (3). A mounting bracket (4) is fixedly connected on one side of the outer wall of the heating sleeve (3), and a copper plate (401) is fixedly connected to the outside of the mounting bracket (4). A semiconductor cooling plate (401) is fixedly connected to the outside of the copper plate (401). 2), and the side of the semiconductor cooling plate (402) closest to the copper plate (401) is the cooling surface. The other side of the semiconductor cooling plate (402) is fixedly connected to a heat dissipation fin (403). Multiple thin tubes (503) are fixedly embedded at equal intervals on the copper plate (401). Multiple round holes adapted to the thin tubes (503) are opened on the copper plate (401). The top of the multiple thin tubes (503) is fixedly connected to the same second horizontal tube (504). An oil drain pipe (505) is fixedly connected to the middle of the top of the second horizontal tube (504). The oil drain pipe (505) is connected to the top of the heating sleeve (3).
2. The high-temperature and high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism according to claim 1, characterized in that, A circulation pump (501) is fixedly connected to the outer wall of the heating sleeve (3) near the bottom of the mounting bracket (4), and an oil suction pipe (5) is fixedly connected to the input end of the circulation pump (501), and the other end of the oil suction pipe (5) is connected to the bottom of the heating sleeve (3). A first horizontal pipe (502) is fixedly connected to the output end of the circulation pump (501), and the top of the first horizontal pipe (502) is connected to a plurality of thin pipes (503).
3. The high-temperature and high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism according to claim 1, characterized in that, Multiple heating tubes (304) are fixedly connected at equal intervals at the bottom edge of the heating sleeve (3).
4. The high-temperature and high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism according to claim 1, characterized in that, The reactor (1) is provided with a feed pipe (102) at one end of the top, and a sealing cap is screwed onto the feed pipe (102). A pressure relief valve (101) is fixedly embedded at the other end of the top of the reactor (1). A discharge pipe (103) is fixedly connected to the bottom of the reactor (1), and a control valve (104) is fixedly installed on the discharge pipe (103).
5. The high-temperature and high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism according to claim 1, characterized in that, A drive motor (2) is fixedly connected to the middle of the top of the reactor (1), and a rotating rod (201) is fixedly connected to the output end of the drive motor (2) through the reactor (1). A stirring blade (202) is fixedly connected to the bottom of the rotating rod (201).
6. The high-temperature and high-pressure synthesis apparatus for fluorescent whitening agents with a monitoring mechanism according to claim 1, characterized in that, A controller is fixedly connected to one side of the outer side of the reactor (1), and a temperature sensor is fixedly connected to the top of the inner side of the reactor (1). The controller is electrically connected to the temperature sensor, the heating element (304), the circulating pump (501), the semiconductor cooling plate (402), and the drive motor (2).