Squirrel-cage graphite heat exchanger for producing phosphotriester

Abstract

The utility model relates to the technical field of graphene heat exchangers, and provides a squirrel-cage graphite heat exchanger for producing phosphotriester, which comprises a reaction kettle, the bottom of the reaction kettle is fixedly connected with supporting legs, the peripheral surface of the reaction kettle is respectively and fixedly connected with a feed port and a discharge port, and the feed port and the discharge port are communicated with each other. A temperature controller is installed on the peripheral face of the reaction kettle, a first driving motor is installed at the top of the reaction kettle, and through the arrangement of a cleaning roller and a synchronous belt, the whole squirrel-cage graphite heat exchanger body can be driven to rotate through the arrangement of the synchronous belt after the first driving motor is started. According to the technical scheme, the heat exchange efficiency of steam and phosphotriester in the pipeline is improved, meanwhile, through reverse rotation of the cleaning rollers, soft brushes on the cleaning rollers can clean open pores in graphite, the open pores are prevented from being blocked by impurities generated by phosphotriester, and the heat exchange efficiency is further improved. The problems of low heat exchange efficiency and inconvenience in cleaning in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphene heat exchangers, and in particular to a squirrel cage graphite heat exchanger used for producing phosphate trisester. Background Art

[0002] In the chemical production process, the production of triesters of phosphate often involves complex working conditions such as high temperature, high pressure and corrosive media. These working conditions place extremely high demands on heat exchange equipment. Squirrel cage graphite heat exchangers, as a common heat exchange equipment, play an important role in this production environment. However, according to the existing technology, squirrel cage graphite heat exchangers have some significant problems in the production of triesters of phosphate, which are mainly manifested in low heat exchange efficiency and easy clogging.

[0003] The authorization announcement number in the prior art is: CN220454352U, and the name is squirrel cage graphite heat exchanger. The patent consists of a reactor and a heat exchange mechanism, wherein the heat exchange mechanism includes a graphite heat exchanger cylinder, two pipes one and two heads. The top and bottom ends of the graphite heat exchanger cylinder are connected to pipe two through the heads, and pipe one is fixedly connected to pipe two and the reactor through a floating head flange and bolts. This design achieves excellent heat transfer effect and high heat transfer efficiency through the close cooperation of various components. At the same time, due to the characteristics of graphite materials, the heat exchanger also has certain corrosion resistance, strong stability, and a uniform and good heat exchange process. These characteristics significantly improve the service life of the heat exchanger and meet the actual needs in the production process.

[0004] However, the patent's simple exchange based on natural flow will result in a lower heat exchange effect. At the same time, the substances produced during the production of triester phosphate are likely to clog the graphite pores of the squirrel-cage graphite heat exchanger. This is determined by the chemical properties and process characteristics of triester phosphate. Trisester phosphate is easily decomposed at high temperatures to produce some solid and liquid impurities. These impurities will adhere to the graphite pores of the heat exchanger and the inner wall of the pipe during the flow process, and gradually accumulate to form a blockage.

[0005] Furthermore, the graphite heat exchanger is located inside the reactor, and the equipment needs to be disassembled every time it needs to be cleaned, which is inconvenient for cleaning the heat exchanger. Utility Model Content

[0006] The utility model provides a squirrel cage graphite heat exchanger for producing phosphate triester, which solves the problems of low heat exchange efficiency and inconvenience in cleaning in the related technology.

[0007] The technical solution of the utility model is as follows: a squirrel cage graphite heat exchanger for producing phosphate trisesters, comprising a reactor, the bottom of the reactor is fixedly connected to a supporting foot, the outer peripheral surface of the reactor is respectively fixedly connected to a feed port and a discharge port, a temperature controller is installed on the outer peripheral surface of the reactor, a drive motor 1 is installed on the top of the reactor, the output end of the drive motor 1 is fixedly connected to a coaxially arranged rotating rod through a coupling, and the rotating rod is rotatably installed on the top of the reactor.

[0008] Preferably, the outer fixed sleeve of the rotating rod is provided with a driving gear, the inner part of the reactor is rotatably provided with an air inlet 1, and the air inlet 1 and the outer part of the rotating rod are jointly provided with a synchronous belt via a synchronous wheel.

[0009] Preferably, pipe 1 and pipe 2 are provided on the air inlet 1, and both pipe 1 and pipe 2 are communicated with the air inlet 1. The bottoms of pipe 1 and pipe 2 are commonly and fixedly connected with a head, and the interior of the head is communicated with pipe 1 and pipe 2.

[0010] Preferably, a squirrel-cage graphite heat exchanger body is fixedly connected to the bottom of the head, the squirrel-cage graphite heat exchanger body is the same as the interior of the head, and the bottom of the squirrel-cage graphite heat exchanger body is also provided with the head, the pipeline 1, the pipeline 2 and the air inlet 1, the air inlet 1 close to the bottom of the reactor is rotatably installed inside the reactor, and a plug is provided at the bottom of the reactor. The squirrel-cage graphite heat exchanger body is made of graphite material, and a plurality of openings are provided on the squirrel-cage graphite heat exchanger.

[0011] Preferably, a fixed plate is fixedly connected to the top of the reactor, and an air inlet 2 is rotatably installed inside the fixed plate. The air inlet 2 is located inside the air inlet 1, and an opening is provided on the air inlet 2, which communicates with the interior of the air inlet 1. A cleaning roller is fixedly connected to the bottom of the air inlet 1, and a soft brush is provided on the cleaning roller.

[0012] Preferably, the external fixed sleeve of the second air inlet is provided with a driven gear, and the driven gear is meshingly connected with the driving gear.

[0013] Preferably, a second drive motor is installed on the top of the reactor, and an output end of the second drive motor is fixedly connected to a coaxially arranged threaded rod through a coupling. The threaded rod is rotatably installed inside the reactor, and a guide plate is fixedly connected to the inner wall of the reactor.

[0014] Preferably, a guide groove is provided inside the guide plate, a movable plate is assembled on the outside of the threaded rod through a ball nut, a guide rod is fixedly connected to one side of the movable plate, the guide rod is slidably connected to the inside of the guide groove, a cleaning sleeve is fixedly connected to the other side of the movable plate, the cleaning sleeve is movably mounted on the outside of the squirrel cage graphite heat exchanger body, and a soft brush is provided on the cleaning sleeve.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. In the utility model, by setting a cleaning roller and a synchronous belt, after starting the driving motor, the setting of the synchronous belt can drive the entire squirrel cage graphite heat exchanger body to rotate, thereby improving the heat exchange efficiency between the steam and the phosphate triester in the pipeline. At the same time, through the reverse rotation of the cleaning roller, the soft brush thereon can clean the openings on the graphite to avoid the impurities generated by the phosphate triester from clogging the openings, thereby further improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the left side of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the right side of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the reactor of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the heat exchanger of the utility model;

[0022] Figure 5 It is a schematic diagram of the transmission structure of the utility model.

[0023] In the figure: 1. Reactor; 2. Support feet; 3. Feed inlet; 4. Discharge outlet; 5. Temperature controller; 6. Drive motor 1; 7. Driving gear; 8. Rotating rod; 9. Synchronous belt; 10. Air inlet 1; 11. Air inlet 2; 12. Driven gear; 13. Fixed plate; 14. Opening; 15. Pipeline 1; 16. Pipeline 2; 17. Head; 18. Squirrel cage graphite heat exchanger body; 19. Cleaning roller; 20. Drive motor 2; 21. Guide plate; 22. Threaded rod; 23. Moving plate; 24. Guide rod; 25. Cleaning sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1~Figure 5 As shown, this embodiment proposes a squirrel cage graphite heat exchanger for producing phosphate triester, including a reactor 1, a supporting foot 2 is fixedly connected to the bottom of the reactor 1, a feed port 3 and a discharge port 4 are fixedly connected to the outer peripheral surface of the reactor 1, a temperature controller 5 is installed on the outer peripheral surface of the reactor 1, and a driving motor 6 is installed on the top of the reactor 1. The output end of the driving motor 6 is fixedly connected to a coaxially arranged rotating rod 8 through a coupling, and the rotating rod 8 is rotatably installed on the top of the reactor 1. Through the setting of a cleaning roller 19 and a synchronous belt 9, after starting the driving motor 6, the setting of the synchronous belt 9 can drive the entire squirrel cage graphite heat exchanger body 18 to rotate, thereby improving the heat exchange efficiency between the steam and the phosphate triester in the pipeline. At the same time, through the reverse rotation of the cleaning roller 19, the soft brush thereon can clean the openings on the graphite to avoid the impurities generated by the phosphate triester from clogging the openings, thereby further improving the heat exchange efficiency.

[0027] like Figure 1~Figure 5 As shown, the outer part of the rotating rod 8 is fixedly sleeved with a driving gear 7, and the inner part of the reactor 1 is rotatably installed with an air inlet 10, and the air inlet 10 and the outer part of the rotating rod 8 are sleeved with a synchronous belt 9 through a synchronous wheel.

[0028] like Figure 1~Figure 5 As shown, a pipe 15 and a pipe 2 16 are provided on the air inlet 10, and both the pipe 15 and the pipe 2 16 are communicated with the air inlet 10, and a head 17 is fixedly connected to the bottom of the pipe 15 and the pipe 2 16, and the interior of the head 17 is communicated with the pipe 15 and the pipe 2 16.

[0029] like Figure 1~Figure 5 As shown, a squirrel-cage graphite heat exchanger body 18 is fixedly connected to the bottom of the head 17. The squirrel-cage graphite heat exchanger body 18 is the same as the interior of the head 17. The bottom of the squirrel-cage graphite heat exchanger body 18 is also provided with a head 17, a pipe 15, a pipe 2 16 and an air inlet 10. The air inlet 10 near the bottom of the reactor 1 is rotatably installed inside the reactor 1. A plug is provided at the bottom of the reactor 1. The squirrel-cage graphite heat exchanger body 18 is made of graphite material, and a plurality of openings are provided on the squirrel-cage graphite heat exchanger.

[0030] like Figure 1~Figure 5As shown, a fixing plate 13 is fixedly connected to the top of the reactor 1, and an air inlet 11 is rotatably installed inside the fixing plate 13. The air inlet 11 is located inside the air inlet 10. An opening 14 is provided on the air inlet 11, and the opening 14 communicates with the interior of the air inlet 10. A cleaning roller 19 is fixedly connected to the bottom of the air inlet 10, and a soft brush is provided on the cleaning roller 19.

[0031] like Figure 1~Figure 5 As shown, the outer fixed sleeve of the second air inlet 11 is provided with a driven gear 12 , and the driven gear 12 is meshed and connected with the driving gear 7 .

[0032] In this embodiment, first, the relevant materials for the preparation of triester phosphate are put into the interior of the reactor 1 through the feed port 3, and then the steam enters the interior of the air inlet 10 through the opening 14 on the air inlet 11, and the steam enters the interior of the squirrel cage graphite heat exchanger body 18 through the pipe 15 and the pipe 2 16 and the head 17, and exchanges heat with the materials through the openings on the graphite heat exchanger body. The bottom of the squirrel cage graphite heat exchanger body 18 is the same as the component arranged on its top. The air inlet 10 arranged at the bottom is sealed by a plug. When it is necessary to discharge the excess steam inside, the plug can be removed. This part belongs to the prior art and will not be described in detail here. In this process, the drive motor 6 is started, and the drive motor 6 drives the rotating rod 8 to rotate. The overall rotation of the squirrel cage graphite heat exchanger body 18 can be achieved through the setting of the synchronous belt 9. During the rotation, the contact between steam and material can be accelerated, thereby improving the effect of heat exchange. During the long production process, phosphate triesters will produce impurities, which will block the openings on the graphite heat exchanger, thereby reducing the heat exchange efficiency. Therefore, during the rotation of the rotating rod 8, the driving gear 7 will also be driven to rotate. The driving gear 7 is engaged with the driven gear 12 to drive the cleaning roller 19 to rotate. The cleaning roller 19 is provided with a soft brush, which is in contact with the opening, which is opposite to the rotation direction of the squirrel cage graphite heat exchanger. During the rotation, the opening can be dredged to avoid blockage, thereby further improving the heat exchange efficiency. It should be noted that the rotating parts passing through the reactor 1 are connected by a rotating seal to ensure its sealing. At the same time, the soft brush will not damage the graphite. The temperature controller 5 is provided with a sensor inside to monitor internal problems.

[0033] Example 2

[0034] like Figure 1~Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a driving motor 20 is installed on the top of the reactor 1, and the output end of the driving motor 20 is fixedly connected to a coaxially arranged threaded rod 22 through a coupling, and the threaded rod 22 is rotatably installed inside the reactor 1, and a guide plate 21 is fixedly connected to the inner wall of the reactor 1.

[0035] like Figure 1~Figure 5 As shown, a guide groove is provided inside the guide plate 21, a movable plate 23 is assembled on the outside of the threaded rod 22 through a ball nut, a guide rod 24 is fixedly connected to one side of the movable plate 23, and the guide rod 24 is slidably connected to the inside of the guide groove, and a cleaning sleeve 25 is fixedly connected to the other side of the movable plate 23. The cleaning sleeve 25 is movably mounted on the outside of the squirrel cage graphite heat exchanger body 18, and a soft brush is provided on the cleaning sleeve 25.

[0036] In this embodiment, during long-term use, although clogging is avoided by the cleaning roller 19, it is still necessary to regularly clean the squirrel cage graphite heat exchanger body 18. During the cleaning process, the reactor 1 does not need to be disassembled. It is only necessary to pass the cleaning fluid into the interior through the feed port 3, and then start the drive motor 20 to drive the threaded rod 22 to rotate. When the threaded rod 22 rotates, it will drive the cleaning sleeve 25 to move. When the cleaning sleeve 25 moves, the soft brush thereon will clean the heat exchanger, and the debris will be brushed into the cleaning solution. Finally, the solution will flow out from the discharge port 4. It should be noted that when the guide rod 24 moves in the guide groove, it can be ensured that the cleaning sleeve 25 only moves in a straight line and does not rotate.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A squirrel cage graphite heat exchanger for producing phosphate trisaccharide, characterized in that: The invention comprises a reactor (1), wherein a support foot (2) is fixedly connected to the bottom of the reactor (1), a feed port (3) and a discharge port (4) are respectively fixedly connected to the outer peripheral surface of the reactor (1), a temperature controller (5) is installed on the outer peripheral surface of the reactor (1), a drive motor (6) is installed on the top of the reactor (1), an output end of the drive motor (6) is fixedly connected to a coaxially arranged rotating rod (8) via a coupling, and the rotating rod (8) is rotatably installed on the top of the reactor (1).

2. The squirrel cage graphite heat exchanger for producing phosphate triesters according to claim 1, characterized in that: The outer fixed sleeve of the rotating rod (8) is provided with a driving gear (7), the inner part of the reaction kettle (1) is rotatably provided with an air inlet 1 (10), and the air inlet 1 (10) and the outer part of the rotating rod (8) are jointly provided with a synchronous belt (9) via a synchronous wheel.

3. The squirrel cage graphite heat exchanger for producing phosphate triesters according to claim 2, characterized in that: The air inlet 1 (10) is provided with a pipe 1 (15) and a pipe 2 (16), the pipe 1 (15) and the pipe 2 (16) are both in communication with the air inlet 1 (10), the bottoms of the pipe 1 (15) and the pipe 2 (16) are fixedly connected with a head (17), the interior of the head (17) is in communication with the pipe 1 (15) and the pipe 2 (16).

4. The squirrel cage graphite heat exchanger for producing phosphate triesters according to claim 3, characterized in that: A squirrel-cage graphite heat exchanger body (18) is fixedly connected to the bottom of the sealing head (17); the interior of the squirrel-cage graphite heat exchanger body (18) is the same as that of the sealing head (17); the bottom of the squirrel-cage graphite heat exchanger body (18) is also provided with the sealing head (17), the pipeline 1 (15), the pipeline 2 (16) and the air inlet 1 (10); the air inlet 1 (10) near the bottom of the reactor (1) is rotatably mounted inside the reactor (1); a plug is provided at the bottom of the reactor (1); the squirrel-cage graphite heat exchanger body (18) is made of graphite material, and a plurality of openings are provided on the squirrel-cage graphite heat exchanger.

5. The squirrel cage graphite heat exchanger for producing phosphate triesters according to claim 4, characterized in that: A fixing plate (13) is fixedly connected to the top of the reactor (1), and a second air inlet (11) is rotatably mounted inside the fixing plate (13). The second air inlet (11) is located inside the first air inlet (10), and an opening (14) is provided on the second air inlet (11), and the opening (14) is communicated with the inside of the first air inlet (10). A cleaning roller (19) is fixedly connected to the bottom of the first air inlet (10), and a soft brush is provided on the cleaning roller (19).

6. The squirrel cage graphite heat exchanger for producing phosphate triesters according to claim 5, characterized in that: The external fixed sleeve of the second air inlet (11) is provided with a driven gear (12), and the driven gear (12) is meshingly connected with the driving gear (7).

7. The squirrel cage graphite heat exchanger for producing phosphate triesters according to claim 6, characterized in that: A second drive motor (20) is installed on the top of the reactor (1); an output end of the second drive motor (20) is fixedly connected to a coaxially arranged threaded rod (22) via a coupling; the threaded rod (22) is rotatably installed inside the reactor (1); and a guide plate (21) is fixedly connected to the inner wall of the reactor (1).

8. The squirrel cage graphite heat exchanger for producing phosphate triesters according to claim 7, characterized in that: A guide groove is provided inside the guide plate (21); a movable plate (23) is assembled on the outside of the threaded rod (22) via a ball nut; a guide rod (24) is fixedly connected to one side of the movable plate (23); the guide rod (24) is slidably connected to the inside of the guide groove; a cleaning sleeve (25) is fixedly connected to the other side of the movable plate (23); the cleaning sleeve (25) is movably sleeved on the outside of the squirrel cage graphite heat exchanger body (18); and a soft brush is arranged on the cleaning sleeve (25).

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