Heat recovery reaction kettle

Abstract

The utility model discloses a heat recovery reaction kettle which comprises a tank body, supporting legs are arranged at the lower end of the tank body, an end cover is arranged on the tank body, a feeding opening is formed in the end cover, a mounting plate is arranged on the end cover, a stirring assembly is arranged in the tank body, a recovery assembly is arranged on the outer side of the tank body, and the tank body is internally provided with a heat exchange assembly. An exchange tank is arranged in the recycling assembly, a filtering assembly is arranged in the exchange tank, and the tank body is connected with the exchange tank through a pipeline. According to the utility model, through the arrangement of the exchange tank, gas generated by production reaction is directly discharged into water in the exchange tank for heat exchange, so that the heat absorption of the water to the gas is improved, the absorption amount of waste heat is improved to a greater extent, and then the heat exchange is performed on the water in the exchange tank and the water in the recovery tank again; the heat conduction ring outside the exchange tank can further improve the heat exchange efficiency.

Description

A heat recovery reactor Technical Field

[0001] This utility model belongs to the field of reaction vessel technology, and in particular relates to a heat recovery reaction vessel. Background Technology

[0002] A reaction vessel, also known as a reaction tank or reactor, is a pressure vessel capable of withstanding certain pressures and temperatures to realize chemical or physical reactions. In the production of dioxane-based liquid crystal monomers, a series of chemical reactions are typically involved, including substitution, addition, and condensation reactions. In these reactions, the breaking and formation of chemical bonds are accompanied by the release or absorption of energy. Especially when reaction conditions are harsh, such as high temperature, high pressure, or high concentrations of reactants, the energy released during the reaction may manifest in large quantities as heat.

[0003] According to the authorization announcement number CN222131897U, a reactor with waste heat recovery function is provided, including a base, a reactor fixedly mounted on the upper surface of the base, a feed pipe connected to the top of the reactor, and a discharge pipe extending to the bottom of the base. A stirring assembly is installed inside the reactor. A recovery box is located on the upper surface of the base and on one side of the reactor. A recovery assembly is installed inside the recovery box, including a bellows fixedly mounted on the top of the recovery box, a conveying component inside the bellows, and a waste heat recovery component inside the recovery box. This reactor with waste heat recovery function, through the recovery assembly, allows the water source inside the recovery box to absorb heat from the gas as it passes through the spiral tube, thereby recovering the heat from the gas. This allows the device to recover heat from the gas, thus meeting the energy-saving requirements of most factories today.

[0004] However, existing technologies have some problems: gas is fed into the recovery tank through pipes, and after heat exchange with water, it is directly discharged. Since the heat transfer coefficient between the gas and the solid pipe is usually low, the heat transfer rate is limited. Furthermore, the directly discharged gas is harmful and contains chemical particles, which also increases the burden on subsequent filtration mechanisms. Therefore, we propose a heat recovery reactor. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a heat recovery reactor. By setting up an exchange tank, the generated gas is discharged into the water inside the exchange tank through a gas vent, allowing for direct heat exchange. This increases the contact between the gas and water, improving the exchange efficiency, and filters particulate matter from the gas through water, reducing the burden on subsequent filtration devices.

[0006] This utility model is implemented as follows: a heat recovery reactor includes a tank body, a support leg at the lower end of the tank body, an end cover on the tank body, a feed inlet on the end cover, an mounting plate on the end cover, a stirring assembly inside the tank body, a recovery assembly on the outside of the tank body, an exchange tank inside the recovery assembly, a filter assembly inside the exchange tank, and the tank body and the exchange tank are connected by a pipeline.

[0007] Optionally, the stirring assembly includes a motor, which is fixedly mounted to the mounting plate. A drive shaft is provided on the output end of the motor, and a stirring shaft is provided on the outer side of the drive shaft. There are multiple sets of stirring shafts, which are arranged in a circumferential pattern. An auxiliary fan blade is provided at the lower end of the drive shaft.

[0008] Optionally, one end of the stirring shaft is fixedly connected to the drive shaft, and the other end of the stirring shaft is fixedly connected to a brush plate. The brush plate is provided with a telescopic plate, and the telescopic plate is in contact with the inner wall of the tank.

[0009] Optionally, the recycling assembly includes a recycling bin, which is fixedly connected to the tank body. The recycling bin is equipped with a water inlet pipe and a drain pipe, and the exchange tank is located inside the recycling bin.

[0010] Optionally, the tank body is provided with a connecting pipe, the exchange tank is provided with a gas supply pipe, and the connecting pipe is connected to the gas supply pipe.

[0011] Optionally, a heat-conducting ring is provided on the outside of the exchange tank, and the number of heat-conducting rings is multiple and the multiple heat-conducting rings are evenly distributed.

[0012] Optionally, the filter assembly includes a drain pipe, the inside of the exchange tank is provided with a bend, the exchange tank is provided with an exhaust pipe, the lower end of the exchange tank is provided with a drain pipe, and the drain pipe passes through the recycling bin.

[0013] Optionally, one end of the bend is fixedly connected to the gas supply pipe, the other end of the bend is closed, and a plurality of air holes are provided on the outer side of the bend.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up an exchange tank, the gas produced by the production reaction is directly discharged into the water in the exchange tank for heat exchange, thereby increasing the heat absorption of the gas by the water and maximizing the absorption of waste heat. Then, the water in the exchange tank and the recovery tank exchange heat again. Furthermore, the heat-conducting ring on the outside of the exchange tank can further improve the heat exchange efficiency.

[0016] 2. By setting up an exchange tank, after the gas is discharged into the water in the exchange tank, the water will trap and absorb the impurity particles in the gas, thereby improving the cleanliness of the gas, reducing the impurity content in the gas, and thus reducing the pressure of the subsequent filtration device.

[0017] 3. By setting up structures such as scrapers and telescopic plates, the scrapers can effectively prevent reactants from adsorbing on the inner wall of the tank during stirring, thereby improving the reaction rate.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure provided by this utility model;

[0020] Figure 2 is a cross-sectional schematic diagram of the tank structure provided by this utility model;

[0021] Figure 3 is an enlarged schematic diagram of part A in Figure 2;

[0022] Figure 4 is a cross-sectional schematic diagram of the recycling bin structure provided by this utility model;

[0023] Figure 5 is a schematic diagram of the exchange tank structure provided by this utility model.

[0024] In the diagram: 1. Tank body; 11. Support legs; 12. End cap; 13. Feed inlet; 14. Mounting plate; 15. Connecting pipe; 2. Agitator assembly; 21. Motor; 22. Drive shaft; 23. Agitator shaft; 24. Brush plate; 25. Telescopic plate; 26. Auxiliary fan blades; 3. Recycling assembly; 31. Recycling box; 32. Water inlet pipe; 33. Drain pipe; 34. Exchange tank; 35. Gas supply pipe; 36. Heat conduction ring; 4. Filter assembly; 41. Bend; 42. Air vent; 43. Exhaust pipe; 44. Sewage pipe. Detailed Implementation

[0025] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0026] As shown in Figures 1 to 5, the heat recovery reactor provided in this embodiment of the present invention includes a tank body 1, a support leg 11 at the lower end of the tank body 1, an end cover 12 on the tank body 1, a feed inlet 13 on the end cover 12, an mounting plate 14 on the end cover 12, a stirring assembly 2 inside the tank body 1, a recovery assembly 3 on the outside of the tank body 1, an exchange tank 34 inside the recovery assembly 3, a filter assembly 4 inside the exchange tank 34, and the tank body 1 and the exchange tank 34 are connected by a pipe.

[0027] Furthermore, this embodiment of the invention mainly consists of a tank body 1, with sturdy support legs 11 at the bottom and an end cap 12 at the top. An inlet 13 is designed on the end cap 12 for easy material input, and a mounting plate 14 is also fixed to the end cap 12 for installing or supporting other necessary components. The tank body 1 is equipped with a stirring assembly 2 to ensure uniform mixing and reaction of the materials. Notably, a recovery assembly 3 is innovatively added to the outside of the tank body 1. This assembly contains an exchange tank 34, which in turn contains a filter assembly 4. This is used to recover and utilize the heat generated during the reaction process, and simultaneously purify the gas through the filter assembly 4, reducing the pressure on subsequent gas processing equipment. The tank body 1 and the exchange tank 34 are connected by a sophisticated piping system, forming a complete and efficient heat recovery and material reaction system.

[0028] Specifically, the stirring assembly 2 includes a motor 21, which is fixedly installed on the mounting plate 14. A drive shaft 22 is provided on the output end of the motor 21, and a stirring shaft 23 is provided on the outside of the drive shaft 22. There are multiple sets of stirring shafts 23, which are distributed in a circle. An auxiliary fan blade 26 is provided at the lower end of the drive shaft 22.

[0029] Furthermore, the stirring assembly 2 is driven by a motor 21, which is mounted on a mounting plate 14 on the end cover 12. The output end of the motor 21 is connected to a drive shaft 22, which extends into the tank 1 and has multiple sets of stirring shafts 23 arranged on its outer side. These stirring shafts 23 are distributed circumferentially to ensure that the material is thoroughly stirred and mixed within the tank 1. In addition, auxiliary fan blades 26 are specially designed at the lower end of the drive shaft 22 to further enhance the stirring effect, especially in the stirring of material at the bottom of the tank 1. The auxiliary fan blades 26 effectively improve the mixing uniformity, ensuring efficient reaction.

[0030] Specifically, one end of the stirring shaft 23 is fixedly connected to the drive shaft 22, and the other end of the stirring shaft 23 is fixedly connected to a brush plate 24. A telescopic plate 25 is provided on the brush plate 24, and the telescopic plate 25 contacts the inner wall of the tank 1.

[0031] Furthermore, the close contact between the telescopic plate 25 on the brush 24 and the inner wall of the tank 1 effectively cleans the tank wall, prevents material adhesion, and ensures the long-term stable operation of the reactor. While stirring the materials, the scraper effectively prevents the adsorption and accumulation of reactants on the inner wall of the tank 1, avoiding material waste and reduced reaction efficiency. In this way, not only is the cleanliness of the reactor interior ensured, but the uniformity of material mixing is also improved, further promoting the full progress of the chemical reaction, thereby significantly improving overall reaction efficiency and product quality.

[0032] Specifically, the recycling component 3 includes a recycling box 31, which is fixedly connected to the tank body 1. The recycling box 31 is equipped with a water inlet pipe 32 and a drain pipe 33. The exchange tank 34 is located inside the recycling box 31. The tank body 1 is equipped with a connecting pipe 15 and the exchange tank 34 is equipped with a gas supply pipe 35. The connecting pipe 15 is connected to the gas supply pipe 35.

[0033] Furthermore, the recovery tank 31 is securely connected to the tank body 1 and is equipped with a water inlet pipe 32 and a drain pipe 33 to facilitate the introduction and discharge of water. Its core component, the exchange tank 34, is located inside the recovery tank 31 and is connected to the gas delivery pipe 35 on the exchange tank 34 via a connecting pipe 15 on the tank body 1, forming a closed heat recovery cycle. This design not only effectively utilizes the heat generated during the reaction process, improving energy efficiency, but also purifies the gas through the internal filter assembly 4, reducing the risk of environmental pollution and enhancing the overall system's environmental performance and economic benefits.

[0034] Specifically, a heat-conducting ring 36 is provided on the outside of the heat exchange tank 34. There are multiple heat-conducting rings 36, which are evenly distributed.

[0035] Furthermore, multiple heat-conducting rings 36 are evenly distributed on the outer side of the heat exchange tank 34, significantly enhancing heat exchange efficiency. The heat-conducting rings 36 not only expand the heat exchange area but also accelerate heat transfer between the tank 1 and the circulating water through their excellent thermal conductivity, ensuring efficient heat recovery. Simultaneously, the even distribution of multiple heat-conducting rings 36 makes heat distribution more uniform, avoiding localized overheating or overcooling, thereby improving the stability and safety of the heat recovery reactor and extending the equipment's service life.

[0036] Specifically, the filter assembly 4 includes a drain pipe 44, an internal bend pipe 41 in the exchange tank 34, an exhaust pipe 43 on the exchange tank 34, a drain pipe 44 at the lower end of the exchange tank 34, the drain pipe 44 passing through the recovery box 31, one end of the bend pipe 41 being fixedly connected to the air supply pipe 35, the other end of the bend pipe 41 being closed, and multiple air holes 42 being provided on the outer side of the bend pipe 41.

[0037] Furthermore, the efficient layout of the bend 41 within the exchange tank 34 promotes full contact between gas and water, improving the impurity removal rate. Simultaneously, the drain pipe 44 directly penetrates the recovery tank 31, facilitating the timely discharge of precipitated impurities and maintaining the cleanliness and efficient operation of the exchange tank 34. The exhaust pipe 43 ensures the smooth discharge of purified gas, comprehensively enhancing the system's filtration effect and operational stability, providing a strong guarantee for the efficient and continuous operation of the heat recovery reactor.

[0038] It should be noted that the connection between the connecting pipe 15 and the gas supply pipe 35 can be disassembled. The port of the gas supply pipe 35 can be connected to a water pipe to regularly flush the inside of the exchange tank 34, thereby keeping the inside of the exchange tank 34 clean.

[0039] Working principle: During the production process, the generated gas is directly discharged into the water in the exchange tank 34 for heat exchange, thereby increasing the water's heat absorption of the gas and maximizing the absorption of waste heat. Then, the exchange tank 34 exchanges heat with the water in the recovery tank again. Furthermore, the heat-conducting ring 36 on the outside of the exchange tank 34 can further improve the heat exchange efficiency. After the gas is discharged into the water in the exchange tank 34, the water will trap and absorb the impurity particles in the gas, thereby improving the cleanliness of the gas, reducing the impurity content in the gas, and thus reducing the pressure of the subsequent filtration device.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat recovery reactor comprising a tank body (1), characterized in that: The lower end of the tank (1) is provided with a support leg (11), the tank (1) is provided with an end cap (12), the end cap (12) is provided with a feed inlet (13), the end cap (12) is provided with an mounting plate (14), the tank (1) is provided with a stirring assembly (2), the tank (1) is provided with a recovery assembly (3) on the outside of the tank (1), the recovery assembly (3) is provided with an exchange tank (34) inside, the exchange tank (34) is provided with a heat-conducting ring (36) on the outside of the exchange tank (34), the exchange tank (34) is provided with a bent pipe (41) inside, one end of the bent pipe (41) is fixedly connected to the gas supply pipe (35), the other end of the bent pipe (41) is closed, the bent pipe (41) is provided with an air hole (42) on the outside of the bent pipe (41), the number of air holes (42) is multiple, the exchange tank (34) is provided with a filter assembly (4), and the tank (1) and the exchange tank (34) are connected by a pipe.

2. The heat recovery reaction kettle according to claim 1, characterized in that: The stirring assembly (2) includes a motor (21), which is fixedly installed on the mounting plate (14). A drive shaft (22) is provided on the output end of the motor (21), and a stirring shaft (23) is provided on the outside of the drive shaft (22). There are multiple sets of stirring shafts (23), which are arranged in a circumferential pattern. An auxiliary fan blade (26) is provided at the lower end of the drive shaft (22).

3. The heat recovery reaction kettle according to claim 2, characterized in that: One end of the stirring shaft (23) is fixedly connected to the drive shaft (22), and the other end of the stirring shaft (23) is fixedly connected to a brush plate (24). A telescopic plate (25) is provided on the brush plate (24), and the telescopic plate (25) contacts the inner wall of the tank (1).

4. The heat recovery reaction kettle according to claim 1, characterized in that: The recycling component (3) includes a recycling box (31), which is fixedly connected to the tank (1). The recycling box (31) is provided with a water inlet pipe (32) and a drain pipe (33). The exchange tank (34) is located inside the recycling box (31).

5. The heat recovery reaction kettle according to claim 1, characterized in that: The tank body (1) is provided with a connecting pipe (15), and the exchange tank (34) is provided with a gas supply pipe (35). The connecting pipe (15) is connected to the gas supply pipe (35).

6. A heat recovery reactor according to claim 1, characterized in that: The number of heat-conducting rings (36) is multiple, and the multiple heat-conducting rings (36) are evenly distributed.

7. The heat recovery reaction kettle according to claim 1, characterized in that: The filter assembly (4) includes a drain pipe (44), an exhaust pipe (43) is provided on the exchange tank (34), a drain pipe (44) is provided at the lower end of the exchange tank (34), and the drain pipe (44) passes through the recycling box (31).

Images