Chloroacetic acid circulating cooling device

Abstract

The utility model discloses a chloroacetic acid circulating cooling device which comprises a box body, the front side of the box body is rotatably connected with a sliding door through a hinge, the upper end of the box body is provided with a feeding port, the upper end and the lower end of the box body are both provided with rotating joints, the adjacent sides of the two rotating joints are both communicated with vertical pipes, and the vertical pipes are communicated with a water tank. A first disc is fixedly connected to the lower end of the vertical pipe located on the upper portion, two pneumatic rods are fixedly connected to the lower end of the first disc, a second disc is arranged at the lower ends of the two pneumatic rods, a third disc is arranged at the upper end of the vertical pipe located on the lower portion, and the adjacent sides of the second disc and the third disc are jointly and fixedly connected with a coil pipe. And the coil pipe is made of a polyethylene material. Through unique structural design and component selection, the cooling efficiency can be effectively improved, different working condition requirements are met, components are convenient to maintain and replace, and wide application prospects are achieved.

Description

Technical Field

[0001] This utility model relates to the field of chloroacetic acid production technology, and in particular to a chloroacetic acid circulating cooling device. Background Technology

[0002] In the chemical production field, chloroacetic acid is an important organic chemical raw material widely used in various industries such as pesticides, pharmaceuticals, dyes, and oilfield chemicals. During the production, storage, and transportation of chloroacetic acid, its chemically reactive properties mean that temperature has a significant impact on its stability and quality. Excessively high temperatures can lead to decomposition, polymerization, and other adverse chemical reactions, thus affecting product quality and production safety. Therefore, effective cooling of chloroacetic acid is a crucial step in ensuring its quality and smooth production.

[0003] Existing chloroacetic acid cooling devices have many problems in practical applications. On the one hand, traditional cooling devices have low cooling efficiency, making it difficult to meet the demand for rapid cooling of chloroacetic acid in large-scale industrial production. For example, some devices that use simple serpentine or tubular cooling structures have limited heat exchange area between the cooling medium and chloroacetic acid, resulting in low heat transfer efficiency, long cooling time, and reduced production efficiency.

[0004] On the other hand, existing cooling devices are not flexible enough in their structural design and are difficult to adapt to cooling requirements under different operating conditions. For example, when it is necessary to cool chloroacetic acid of different volumes or flow rates, traditional devices are often not easy to adjust and require the replacement of the entire cooling equipment, which increases production costs and the difficulty of equipment maintenance.

[0005] Furthermore, key components of some cooling devices, such as cooling pipes, are prone to wear and corrosion during long-term use, and are inconvenient to repair and replace. Because chloroacetic acid is corrosive, ordinary cooling pipes are easily corroded upon contact with it, shortening their lifespan. Replacing the coils is difficult due to the complex structural design, increasing downtime and maintenance costs.

[0006] Therefore, a chloroacetic acid circulating cooling device needs to be designed to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a chloroacetic acid circulating cooling device. Through its unique structural design and component selection, this device can effectively improve cooling efficiency, adapt to different working conditions, and facilitate maintenance and component replacement, thus having broad application prospects.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A chloroacetic acid circulating cooling device includes a housing with a hinged door rotatably connected to the front side of the housing. The housing has a feed inlet at its upper end and rotary joints at both its upper and lower ends. Vertical pipes connect adjacent sides of the two rotary joints. A first disc is fixedly connected to the lower end of the upper vertical pipe, and two pneumatic rods are fixedly connected to the lower end of the first disc. A second disc is located at the lower end of the two pneumatic rods. A third disc is located at the upper end of the lower vertical pipe. A coil is fixedly connected to the adjacent sides of the second and third discs. The coil is made of polyethylene.

[0010] Preferably, a heat exchanger is installed on the left side of the housing, and a circulating pump is installed at the upper end of the heat exchanger. The liquid outlet of the circulating pump is connected to the liquid inlet of the heat exchanger. The liquid inlet of the circulating pump is connected to the upper rotary joint through a liquid inlet pipe, and the liquid outlet of the heat exchanger is connected to the lower rotary joint through a liquid outlet pipe.

[0011] Preferably, the second disc and the two pneumatic rods are each fixedly connected to a first flange on their adjacent sides, and the two mating first flanges are fixedly connected by a plurality of first bolts. The third disc and the vertical pipe located below are both fixedly connected to a second flange on their adjacent sides, and the two second flanges are fixedly connected by a plurality of second bolts.

[0012] Preferably, the lower end of the first disc is provided with a flexible tube, the upper end of the flexible tube is connected to the vertical pipe located above, the lower end of the flexible tube is connected to a connector, the upper end of the second disc is fixedly connected to a threaded head, the upper end of the coil is connected to the threaded head, and the lower end of the coil is connected to the second flange located above.

[0013] Preferably, short rods are rotatably connected to both the upper and lower ends of the housing, and gears are installed on both short rods and the vertical tube. A mounting bracket is installed at the upper end of the housing, and a drive motor is installed on the mounting bracket. The output shaft of the drive motor is fixedly connected to the short rod located above. Two mounting blocks are installed on the right side of the housing, and a transmission rod is rotatably connected through both mounting blocks. The transmission rod and the two short rods are connected by a transmission assembly.

[0014] Preferably, the transmission assembly includes sprockets mounted on the short rod and the transmission rod, and the two sprockets are connected by a chain drive.

[0015] Compared with existing technologies, the advantages of this device are:

[0016] 1. Compared with existing technologies, this device effectively increases the heat exchange area between the cooling medium and chloroacetic acid by setting rotary joints at both ends of the housing and utilizing the ingenious cooperation of components such as the vertical pipe, the first disc, the pneumatic rod, the second disc, the third disc, and the coil. For example, the coil increases the contact path between the cooling medium and chloroacetic acid, and the rotation of the short rod and the vertical pipe by the drive motor further enhances the heat exchange effect and improves the cooling efficiency. This meets the demand for rapid cooling of chloroacetic acid in large-scale industrial production and overcomes the problems of limited heat exchange area and low heat transfer efficiency of traditional cooling devices.

[0017] 2. Compared with existing technologies, this device has a more flexible structural design. The two pneumatic rods can be adjusted according to actual working conditions, allowing for the adjustment of the second disc's position and thus changing the coil's operating state and effective cooling area. When cooling different volumes or flow rates of chloroacetic acid is required, there is no need to replace the entire cooling equipment; simply adjusting the pneumatic rods can adapt to different cooling needs, reducing production costs, improving the device's versatility and adaptability, and solving the problem of traditional devices being unable to adapt to different working conditions.

[0018] 3. Compared with existing technologies, this device has significant advantages in component maintenance and replacement. The second disc and pneumatic rod, and the third disc and vertical pipe are fixedly connected via the first and second flanges and bolts, respectively, allowing for convenient and quick disassembly and replacement when components such as the cooling coil experience wear or corrosion. Simultaneously, the inclusion of hoses, connectors, and threaded heads simplifies coil installation and disassembly, reducing maintenance time and downtime costs. This effectively solves the problem of inconvenient maintenance and replacement of key components in traditional cooling devices, extending the device's service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a chloroacetic acid circulating cooling device proposed in this utility model;

[0020] Figure 2 for Figure 1 A structural diagram from another perspective;

[0021] Figure 3 This is a schematic diagram of the structure after removing the sliding door.

[0022] In the diagram: 1. Housing, 2. Mounting bracket, 3. Drive motor, 4. Rotary joint, 5. Liquid inlet pipe, 6. Feed inlet, 7. Pull door, 8. Transmission assembly, 9. Mounting block, 10. Transmission rod, 11. Gear, 12. Circulating pump, 13. Heat exchanger, 14. Liquid outlet pipe, 15. Vertical pipe, 16. First disc, 17. Pneumatic rod, 18. Hose, 19. Threaded head, 20. First flange, 21. Second disc, 22. Coil, 23. Second flange, 24. Third disc. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-3 A chloroacetic acid circulating cooling device includes a housing 1. A sliding door 7 is rotatably connected to the front of the housing 1 via a hinge. The sliding door 7 facilitates the inspection, maintenance, and replacement of components inside the housing 1. The hinge allows the sliding door 7 to rotate freely, making it easy to open and close. When maintenance is required, the sliding door 7 can be easily opened to access the interior of the housing 1. An equipment lock (existing technology) is installed on the sliding door 7. A sealing ring is directly installed on the adjacent side of the sliding door 7 and the housing 1 to ensure a tight seal when the sliding door 7 is closed. An inlet 6 is located at the top of the housing 1. Rotary joints 4 are located at both the top and bottom of the housing 1. The rotary joints 4 allow for flexible connection between a vertical pipe 15, an inlet pipe 5, and an outlet pipe 14. When the vertical pipe 15 rotates, the rotary joints 4 ensure normal liquid flow and prevent leakage. Due to the rotation of the vertical pipe 15, leakage or damage may occur at the connection point. The two rotary joints 4 are connected to the vertical pipe 15 on adjacent sides. The lower end of the upper vertical pipe 15 is fixedly connected to the first disc 16. The lower end of the first disc 16 is fixedly connected to two pneumatic rods 17. The lower end of the two pneumatic rods 17 is provided with a second disc 21. The upper end of the lower vertical pipe 15 is provided with a third disc 24. The adjacent sides of the second disc 21 and the third disc 24 are jointly fixedly connected to a coil 22. The coil 22 is made of polyethylene. The coil 22 is a key component for realizing the cooling function. It is made of polyethylene and has good corrosion resistance. It can work stably for a long time in the chloroacetic acid environment. In addition, the curved shape of the coil 22 increases the contact area with chloroacetic acid and improves the heat exchange efficiency.

[0025] The heat exchanger 13 is installed on the left side of the housing 1. A circulation pump 12 is installed on the upper end of the heat exchanger 13. The liquid outlet of the circulation pump 12 is connected to the liquid inlet of the heat exchanger 13. The liquid inlet of the circulation pump 12 is connected to the rotary joint 4 located above through the liquid inlet pipe 5. The liquid outlet of the heat exchanger 13 is connected to the rotary joint 4 located below through the liquid outlet pipe 14.

[0026] The second disc 21 and the two pneumatic rods 17 are each fixedly connected to a first flange 20 on their adjacent sides. The two mating first flanges 20 are fixedly connected by multiple first bolts. The third disc 24 and the adjacent side of the lower vertical pipe 15 are both fixedly connected to a second flange 23. The two second flanges 23 are fixedly connected by multiple second bolts. The lower end of the first disc 16 is provided with a flexible hose 18. The flexible hose 18 has a certain degree of flexibility and can adapt to the movement of the vertical pipe 15 when it rotates, ensuring the normal flow of the cooling medium. It is also easy to connect and install. The upper end of the flexible hose 18 is connected to the upper vertical pipe 15, and the lower end of the flexible hose 18 is connected to a connector. The upper end of the second disc 21 is fixedly connected to a threaded head 19. The upper end of the coil 22 is connected to the threaded head 19, and the lower end of the coil 22 is connected to the upper second flange 23.

[0027] The box 1 has short rods rotatably connected to both its upper and lower ends. Gears 11 are installed on both short rods and vertical tube 15. A mounting bracket 2 is installed on the upper end of the box 1. A drive motor 3 is installed on the mounting bracket 2. The output shaft of the drive motor 3 is fixedly connected to the short rod located above. Two mounting blocks 9 are installed on the right side of the box 1. A transmission rod 10 is rotatably connected through both mounting blocks 9. The transmission rod 10 and the two short rods are connected by a transmission assembly 8. The transmission assembly 8 includes sprockets set on the short rods and the transmission rod 10. The two sprockets are connected by a chain drive.

[0028] The functional principle of this invention can be explained through the following operation: Chloroacetic acid is fed into the tank 1 through the inlet 6 at the top, filling the internal space of the tank 1. The circulation pump 12 is then started, drawing in cooling medium through the inlet pipe 5. The inlet pipe 5 is connected to the rotary joint 4 located above, and the cooling medium enters the upper vertical pipe 15 through the rotary joint 4. Since a first disc 16 is fixedly connected to the lower end of the vertical pipe 15, and a flexible hose 18 communicating with the vertical pipe 15 is provided at the lower end of the first disc 16, the cooling medium enters the coil 22 through the flexible hose 18, connector, and threaded head 19. The coil 22 is made of polyethylene, which has good corrosion resistance and is not corroded when in contact with chloroacetic acid. The cooling medium flows in the coil 22, exchanging heat with the chloroacetic acid inside the tank 1 and absorbing the heat from the chloroacetic acid. Subsequently, the cooling medium flows out from the lower end of coil 22, passes through the second flange 23 below, enters the lower vertical pipe 15, then passes through the lower rotary joint 4 into the outlet pipe 14, and finally flows back to heat exchanger 13. In heat exchanger 13, the cooling medium releases the absorbed heat, is cooled, and then re-enters the circulating pump 12, completing one cycle. This cycle repeats continuously, constantly removing heat from chloroacetic acid, thus achieving continuous cooling of chloroacetic acid.

[0029] The drive motor 3, mounted on the mounting bracket 2, is activated. The output shaft of the drive motor 3 is fixedly connected to the upper short rod, causing it to rotate. A gear 11 is mounted on the short rod, and the short rod is connected to the transmission rod 10 via a transmission assembly 8. The sprocket and chain in the transmission assembly 8 transmit the rotation of the short rod to the transmission rod 10, which then drives the lower short rod to rotate via another set of transmission assemblies 8. Since the vertical tube 15 is connected to the short rod via the gear 11, the rotation of the short rod causes the vertical tube 15 to rotate, which in turn causes the first disc 16, pneumatic rod 17, second disc 21, third disc 24, and coil 22 connected to the vertical tube 15 to rotate together. The rotation of the coil 22 intensifies the relative motion between the cooling medium and chloroacetic acid, enhancing heat exchange and improving cooling efficiency.

[0030] Depending on the actual cooling requirements, the position of the second disc 21 can be changed by adjusting the extension and retraction of the pneumatic rod 17. When it is necessary to increase the cooling area, the pneumatic rod 17 is extended to increase the effective length of the coil 22, thereby increasing the contact area between the cooling medium and chloroacetic acid and improving the cooling effect; when it is necessary to reduce the cooling area, the pneumatic rod 17 is shortened to reduce the effective length of the coil 22, so as to adapt to the cooling requirements of chloroacetic acid of different volumes or flow rates.

[0031] After the device has been running for a period of time, if components such as coil 22 show signs of wear or corrosion, the sliding door 7 can be opened. Remove the first bolt on the first flange 20 and the second bolt on the second flange 23. Separate the second disc 21 from the pneumatic rod 17 and the third disc 24 from the lower vertical pipe 15. Then, separate the hose 18 from the threaded head 19. The coil 22 can then be easily removed for repair or replacement. After replacing the coil 22, install it following the reverse steps, ensuring all components are securely connected, before resuming operation.

[0032] 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 chloroacetic acid recirculating cooling device comprising a tank (1), characterized in that: The front side of the box (1) is rotatably connected with a pull door (7) through a hinge, the upper end of the box (1) is provided with a feeding port (6), the upper and lower ends of the box (1) are both provided with a rotary joint (4), the adjacent sides of the two rotary joints (4) are both communicated with a vertical pipe (15), the lower end of the vertical pipe (15) located at the upper side is fixedly connected with a first disc (16), the lower end of the first disc (16) is fixedly connected with two pneumatic rods (17), the lower end of the two pneumatic rods (17) is provided with a second disc (21), the upper end of the vertical pipe (15) located at the lower side is provided with a third disc (24), the adjacent sides of the second disc (21) and the third disc (24) are fixedly connected with a coil pipe (22) together, and the coil pipe (22) is made of polyethylene material.

2. A circulating cooling device of chloroacetic acid according to claim 1, characterized in that: The left side of the box (1) is provided with a heat exchanger (13), the upper end of the heat exchanger (13) is provided with a circulating pump (12), the liquid outlet end of the circulating pump (12) is communicated with the liquid inlet end of the heat exchanger (13), the liquid inlet end of the circulating pump (12) is communicated with the rotary joint (4) located at the upper side through a liquid inlet pipe (5), and the liquid outlet end of the heat exchanger (13) is communicated with the rotary joint (4) located at the lower side through a liquid outlet pipe (14).

3. A circulating cooling device of chloroacetic acid according to claim 1, characterized in that: The adjacent sides of the second disc (21) and the two pneumatic rods (17) are fixedly connected with a first flange (20), the two matched first flanges (20) are fixedly connected through a plurality of first bolts, and the adjacent sides of the third disc (24) and the vertical pipe (15) located at the lower side are fixedly connected with a second flange (23) together.

4. A circulating cooling device of chloroacetic acid according to claim 3, characterized in that: The lower end of the first disc (16) is provided with a hose (18), the upper end of the hose (18) is communicated with the vertical pipe (15) located at the upper side, the lower end of the hose (18) is connected with a connector, the upper end of the second disc (21) is fixedly connected with a threaded head (19), the upper end of the coil pipe (22) is communicated with the threaded head (19), and the lower end of the coil pipe (22) is communicated with the second flange (23) located at the upper side.

5. A circulating cooling device of chloroacetic acid according to claim 1, characterized in that: The upper and lower ends of the box (1) are rotatably connected with short rods, gears (11) are mounted on the vertical pipes (15) on the two short rods, the upper end of the box (1) is provided with a mounting bracket (2), the mounting bracket (2) is provided with a driving motor (3), the output shaft tail end of the driving motor (3) is fixedly connected with the short rod located at the upper side, the right side of the box (1) is provided with two mounting blocks (9), the two mounting blocks (9) are rotatably connected with a transmission rod (10) penetrating through the two mounting blocks (9) together, and the transmission rod (10) is drivingly connected with the two short rods through a transmission assembly (8).

6. A circulating cooling device of chloroacetic acid according to claim 5, characterized in that: The transmission assembly (8) comprises chain wheels arranged on the short rods and the transmission rod (10), and the two chain wheels are drivingly connected through a chain.

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