Self-cleaning device for jacket and reaction kettle comprising same

Abstract

The invention relates to the technical field of reaction kettles, in particular to a self-cleaning device for a jacket and a reaction kettle comprising the self-cleaning device, the self-cleaning device comprises a support and a reaction tank mounted on the support, and further comprises a heat preservation shell, and a heat exchange cavity is formed between the heat preservation shell and the reaction tank; the cleaning device comprises a plurality of first scraping frames installed in the heat exchange cavity, cleaning scrapers are installed on the first scraping frames in a sliding mode, a collecting frame is installed between every two adjacent cleaning scrapers, a plurality of filter screens are rotationally installed on each collecting hole, the filter screens cannot block the collecting holes when the collecting frames move upwards, and the filter screens block the collecting holes when the collecting frames move downwards. The cleaning device is arranged in the heat exchange cavity, a plurality of first scraping frames and second scraping frames are driven to rotate through flowing of heat exchange liquid, the inner wall of the heat exchange cavity is cleaned, meanwhile, scraped scale is collected to the bottom of the heat exchange cavity through a collecting frame in the cleaning process, and the scale leaves the heat exchange cavity along with the heat exchange liquid; and the heat exchange efficiency of the heat exchange cavity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reaction kettles, in particular to a self-cleaning device for a jacket and a reaction kettle comprising the same. BACKGROUND

[0002] The jacket of a reaction kettle refers to a hollow structure arranged outside the reaction kettle, which is usually composed of an inner shell, an outer shell and an inlet and outlet pipe, and mainly serves to control temperature and transfer heat.

[0003] Some jackets of reaction kettles are provided with water pipes, and heat preservation is achieved by injecting heat exchange liquid into the water pipes. Some jackets of reaction kettles are cavities, and heat preservation is achieved by directly injecting heat preservation liquid into the cavities. For the latter, the liquid flows in the cavity for a long time, which will cause scale to remain on the inner wall of the cavity, and over time, the efficiency of heat conduction will be affected. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the present application provides a self-cleaning device for a jacket and a reaction kettle comprising the same, which can effectively solve the problem that the inner wall of the jacket is in contact with the heat exchange liquid for a long time, causing scale to remain and affecting the heat exchange rate.

[0005] To achieve the above-mentioned purposes, the present application is implemented by the following technical solutions:

[0006] The present application provides a self-cleaning device for a jacket and a reaction kettle comprising the same, which comprises a support and a reaction tank mounted on the support, and further comprises:

[0007] A heat preservation shell is fixedly sleeved on the reaction tank, and a heat exchange cavity is arranged between the heat preservation shell and the reaction tank;

[0008] A cleaning device is arranged in the heat exchange cavity and is used to clean the heat exchange cavity. The cleaning device comprises a plurality of first scraping frames mounted in the heat exchange cavity, wherein the first scraping frames slide circumferentially, a cleaning scraper is slidably mounted on each first scraping frame, and a collecting frame is mounted between adjacent cleaning scrapers. A plurality of collecting holes are formed in the collecting frame, and a plurality of filter screens are rotatably mounted in each collecting hole. When the collecting frame moves upwards, the filter screens do not block the collecting holes, and when the collecting frame moves downwards, the filter screens block the collecting holes.

[0009] Further, a rotating ring is rotatably mounted in the heat exchange cavity, the first scraping frames are fixedly mounted on the bottom wall of the rotating ring, and a sliding opening is formed in the first scraping frame.

[0010] Further, the first scraping frame is in the shape of a long strip, a second scraping frame is fixedly mounted at the bottom end of the first scraping frame, and the first scraping frame and the second scraping frame are connected at an angle.

[0011] Further, the plurality of collecting racks and the plurality of cleaning scrapers form a closed ring, the side wall of the collecting rack is slidably connected with the inner wall of the heat exchange cavity, and when the first scraper slides against the heat exchange cavity, the collecting rack reciprocatingly slides along the inner wall of the heat exchange cavity.

[0012] Further, a wave-shaped guide groove is formed on the inner wall of the heat exchange cavity, and a guide block matched with the guide groove is fixedly installed on the outer wall of the collecting rack.

[0013] Further, a hinge is arranged at the bottom opening of the collecting hole, and the filter screen is rotatably installed on the hinge, and a coil spring is arranged at the rotating connection of the hinge.

[0014] Further, a gear ring is fixedly installed on the top of the rotating ring, a water inlet pipe is connected to one side of the heat preservation shell, a water outlet pipe is arranged at the bottom of the heat preservation shell, and a gear matched with the gear ring is rotatably installed in the heat exchange cavity.

[0015] Further, two transmission boxes are connected to the end of the water inlet pipe away from the heat preservation shell, a rotating shaft is inserted between the two transmission boxes, the rotating shaft penetrates through the heat preservation shell and is fixedly connected with the gear, a first water wheel and a second water wheel are respectively sleeved on the rotating shaft, the first water wheel and the second water wheel are respectively arranged in the two transmission boxes, a shunt pipe is connected to one side of each of the two transmission boxes, a reversing valve is connected to the two shunt pipes, and a main water pipe is connected to the reversing valve.

[0016] Further, a mixing rack is rotatably installed in the reaction tank, an electric motor for driving the rotation of the mixing rack is arranged at the top of the reaction tank, and a transmission assembly is arranged between the electric motor and the gear.

[0017] A reaction kettle adopting the self-cleaning device of the jacket.

[0018] Compared with the known prior art, the technical scheme provided by the present application has the following beneficial effects:

[0019] The cleaning device is arranged in the heat exchange cavity, the rotation of the plurality of first scrapers and second scrapers is driven by the flow of the heat exchange liquid, the inner wall of the heat exchange cavity is cleaned, the collecting rack is used to collect the scale scraped off to the bottom of the heat exchange cavity during the cleaning process, and the heat exchange liquid exits the heat exchange cavity, so that the heat exchange efficiency of the heat exchange cavity is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0021] Figure 1 is a schematic view of the whole invention;

[0022] Figure 2 is a schematic view of the whole invention; Figure 1 is a sectional view of the part;

[0023] Figure 3 is a schematic view of the structure of the cleaning device part;

[0024] Figure 4 is a schematic view of the whole invention; Figure 3 is a plan view of the whole invention;

[0025] Figure 5 is a front view of the whole invention; Figure 3

[0026] Figure 6 is an enlarged view of the structure of part A of the whole invention; Figure 5

[0027] Figure 7 is a schematic view of the structure of the collecting frame part;

[0028] Figure 8 is a schematic view of the structure of the filter screen part;

[0029] Figure 9 is a view of the state of the filter screen when the collecting frame is moving up;

[0030] Figure 10 is a view of the state of the filter screen when the collecting frame is moving down;

[0031] Figure 11 is a plan sectional view of the first scraping frame and the cleaning scraper part;

[0032] Figure 12 is a schematic view of the structure of the transmission assembly part.

[0033] The reference numbers in the figures represent respectively: 1, support; 2, reaction tank; 3, heat preservation shell; 4, heat exchange cavity; 5, water outlet pipe; 6, mixing frame; 7, rotating ring; 8, tooth ring; 9, gear; 10, first scraping frame; 11, second scraping frame; 12, cleaning scraper; 13, collecting frame; 14, collecting hole; 15, filter screen; 16, hinge; 17, transmission box; 18, rotating shaft; 19, first water wheel; 20, second water wheel; 21, shunt pipe; 22, main water pipe; 23, water inlet pipe. DETAILED DESCRIPTION

[0034] ​​In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0035] The present application will be further described below with reference to the embodiments.

[0036] Embodiment 1

[0037] Reference Figure 1 and Figure 2 A self-cleaning device for a jacketed vessel includes a support 1 and a reaction tank 2 mounted on the support 1, and further includes a heat preservation shell 3 fixedly sleeved on the reaction tank 2, and a heat exchange cavity 4 is arranged between the heat preservation shell 3 and the reaction tank 2.

[0038] In order to ensure that the heat exchange cavity 4 always has good heat exchange efficiency, a cleaning device for cleaning the heat exchange cavity 4 is arranged therein, which includes a plurality of first scraping frames 10 mounted in the heat exchange cavity 4, the first scraping frame 10 is in a strip shape, a second scraping frame 11 is fixedly mounted at the bottom end of the first scraping frame 10, and the first scraping frame 10 and the second scraping frame 11 are obliquely connected, the first scraping frame 10 slides circumferentially, a cleaning scraper 12 is slidably mounted on the first scraping frame 10, a rotating ring 7 is rotatably mounted in the heat exchange cavity 4, the first scraping frame 10 is fixedly mounted on the bottom wall of the rotating ring 7, a sliding opening is formed in the first scraping frame 10, the cleaning scraper 12 is slidably mounted in the sliding opening, a collecting frame 13 is mounted between adjacent cleaning scrapers 12, a plurality of collecting holes 14 are formed in the collecting frame 13, a plurality of filter screens 15 are rotatably mounted in each collecting hole 14, a hinge 16 is arranged at the bottom opening of the collecting hole 14, the filter screen 15 is rotatably mounted on the hinge 16, a coil spring is arranged at the rotating connection of the hinge 16, the plurality of collecting frames 13 and the plurality of cleaning scrapers 12 form a closed ring, the side wall of the collecting frame 13 is slidably connected with the inner wall of the heat exchange cavity 4, and when the first scraping frame 10 slides to clean the heat exchange cavity 4, the collecting frame 13 reciprocally slides up and down along the inner wall of the heat exchange cavity 4, a wave-shaped guide groove is formed in the inner wall of the heat exchange cavity 4, a guide block matching the guide groove is fixedly mounted on the outer wall of the collecting frame 13, the filter screen 15 does not block the collecting hole 14 when the collecting frame 13 moves up, and the filter screen 15 blocks the collecting hole 14 when the collecting frame 13 moves down.

[0039] In order to ensure the cleanliness in the heat exchange cavity 4, so as to improve the heat preservation efficiency (heat exchange efficiency), as shown in Figure 3As shown, a rotating ring 7 is rotatably installed in the heat exchange cavity 4, and a plurality of first scraping frames 10 and second scraping frames 11 are arranged at the bottom of the rotating ring 7. The first scraping frames 10 and the second scraping frames 11 are driven to rotate with the rotating ring 7, and thus the inner wall of the heat exchange cavity 4 is cleaned, and the scale and other impurities attached to the inner wall are scraped off.

[0040] The scraped-off scale needs to be collected. The fine impurities in the internal water flow flow in the heat exchange cavity 4 along with the water flow. In order to prevent secondary attachment, the collection frames 13 are arranged between the adjacent cleaning scrapers 12, and the internal scale and impurities are cleaned through the collection frames 13.

[0041] The cleaning scrapers 12 are arranged on the first scraping frames 10. When the rotating ring 7 rotates, the guide blocks on the collection frames 13 slide along the guide grooves on the inner wall of the heat exchange cavity 4. Since the guide grooves are wavy and connected at the head and tail, the collection frames 13 are periodically raised and lowered.

[0042] During the above-mentioned raising and lowering process, the plurality of filter screens 15 on the collection frames 13 are in a state as shown in Figure 9 and Figure 10 When the collection frames 13 move upwards, the filter screens 15 rotate under the action of water pressure, so that the collection holes 14 can be opened, and the water flow passes through the collection holes 14 and carries the impurities into the lower part of the collection frames 13. When the collection frames 13 move downwards, the filter screens 15 are tightly pressed against the outer wall of the collection holes 14 under the action of water pressure, so that the collection holes 14 are blocked, the impurities are blocked by the filter screens 15 and carried to the bottom of the heat exchange cavity 4, which is close to the water outlet pipe 5. The water flow continuously flows out, and the impurities are also carried away.

[0043] In order to further facilitate the collection of impurities, the first scraping frames 10 and the second scraping frames 11 are obliquely installed, as shown in Figure 4 The second scraping frames 11 can also be arranged in a curved shape (if the second scraping frames 11 are in a curved shape, they are in an arc shape in plan view), so as to push the impurities to the water outlet pipe 5.

[0044] Embodiment 2:

[0045] Reference Figure 5 and Figure 6A gear ring 8 is fixedly installed on the top of the rotating ring 7. A water inlet pipe 23 is connected to one side of the insulation shell 3. A water outlet pipe 5 is provided at the bottom of the insulation shell 3. A gear 9 that matches the gear ring 8 is rotatably installed in the heat exchange chamber 4. Two transmission boxes 17 are connected to the end of the water inlet pipe 23 away from the insulation shell 3. A rotating shaft 18 is inserted between the two transmission boxes 17. The rotating shaft 18 passes through the insulation shell 3 and is fixedly connected to the gear 9. A first water wheel 19 and a second water wheel 20 are respectively fitted on the rotating shaft 18. The first water wheel 19 and the second water wheel 20 are respectively located in the two transmission boxes 17. A diversion pipe 21 is connected to one side of each of the two transmission boxes 17. The two diversion pipes 21 are connected to a reversing valve. The reversing valve is connected to the main water pipe 22. A mixing frame 6 is rotatably installed in the reaction tank 2. A motor for driving the mixing frame 6 to rotate is provided on the top of the reaction tank 2. A transmission assembly is provided between the motor and the gear 9.

[0046] To facilitate cleaning, a gear ring 8 and a gear 9 are installed in the heat exchange chamber 4. The gear ring 8 and gear 9 are vertically positioned above the water inlet pipe 23. When the heat exchange function is activated, as... Figure 6 As shown, under the action of the reversing valve, the water in the main water pipe 22 enters one of the transmission boxes 17. Under the impact of the water flow, the first water wheel 19 or the second water wheel 20 rotates, thereby driving the rotating shaft 18 to rotate, which in turn drives the gear 9 to rotate. Through the gear transmission, the gear ring 8 rotates, thereby completing the rotation of the rotating ring 7 and achieving the above-mentioned self-cleaning effect.

[0047] When water enters different transmission boxes 17, it causes the rotating shaft 18 to rotate in different directions, thereby changing the rotation direction of the rotating ring 7 and thus changing the cleaning direction. This makes the cleaning method better and improves the cleaning effect.

[0048] It is worth noting that the above-described driving method is not the only one. A transmission assembly is also provided between the motor and gear 9. This transmission assembly can also drive gear 9. For example, the top end of the rotating shaft 18 can pass through gear 9 and insulation shell 3, and a transmission gear can be set at the top end of the rotating shaft 18. This transmission gear can be raised and lowered (driven by an electric actuator or other components). Figure 12 As shown, a transmission gear is also provided on the output shaft of the motor. The engagement of the two transmission gears is completed by the lifting action, so as to achieve the purpose of the two driving methods not interfering with each other.

[0049] A reaction vessel employing the self-cleaning device of the aforementioned jacket.

[0050] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-cleaning device for a jacketed vessel comprising a support (1) and a reactor tank (2) mounted on the support (1), characterized in that, Also include: The heat preservation shell (3) is fixedly sleeved on the reaction tank (2), and a heat exchange cavity (4) is arranged between the heat preservation shell (3) and the reaction tank (2); The cleaning device is used for cleaning the heat exchange cavity (4), and a plurality of first scraping frames (10) are installed in the heat exchange cavity (4), the first scraping frame (10) slides circumferentially, a cleaning scraper (12) is slidably installed on the first scraping frame (10), and a collecting frame (13) is installed between adjacent cleaning scrapers (12), a plurality of collecting holes (14) are formed in the collecting frame (13), a plurality of filter screens (15) are rotatably installed on each collecting hole (14), the filter screen (15) does not block the collecting hole (14) when the collecting frame (13) moves upwards, and the filter screen (15) blocks the collecting hole (14) when the collecting frame (13) moves downwards.

2. A self-cleaning device for a jacket according to claim 1, characterized in that The rotating ring (7) is rotatably installed in the heat exchange cavity (4), the first scraping frame (10) is fixedly installed on the bottom wall of the rotating ring (7), and the first scraping frame (10) is slidably installed in the sliding port.

3. A self-cleaning device for a jacket according to claim 2, characterized in that The first scraping frame (10) is in the form of a long strip, the second scraping frame (11) is fixedly installed at the bottom end of the first scraping frame (10), and the first scraping frame (10) and the second scraping frame (11) are inclinedly connected.

4. A self-cleaning device for a jacket according to claim 3, characterized in that A plurality of collecting frames (13) and a plurality of cleaning scrapers (12) form a closed annular ring, the side wall of the collecting frame (13) is slidably connected with the inner wall of the heat exchange cavity (4), and when the first scraping frame (10) slides to clean the heat exchange cavity (4), the collecting frame (13) reciprocatingly slides up and down along the inner wall of the heat exchange cavity (4).

5. A self-cleaning device for a jacket according to claim 4, characterized in that Wavy guide grooves are formed in the inner wall of the heat exchange cavity (4), and guide blocks matched with the guide grooves are fixedly installed on the outer wall of the collecting frame (13).

6. A self-cleaning device for a jacket according to claim 5, characterized in that Hinges (16) are arranged at the bottom openings of the collecting holes (14), the filter screens (15) are rotatably installed on the hinges (16), and the rotating connection portions of the hinges (16) are provided with coil springs.

7. A self-cleaning device for a jacket according to claim 6, characterized in that A gear ring (8) is fixedly installed at the top of the rotating ring (7), one side of the heat preservation shell (3) is connected with a water inlet pipe (23), the bottom of the heat preservation shell (3) is provided with a water outlet pipe (5), and a gear (9) matched with the gear ring (8) is rotatably installed in the heat exchange cavity (4).

8. A self-cleaning device for a jacket according to claim 7, characterized in that Two transmission boxes (17) are connected with one end of the water inlet pipe (23) away from the heat preservation shell (3), a rotating shaft (18) is inserted between the two transmission boxes (17), the rotating shaft (18) penetrates through the heat preservation shell (3) and is fixedly connected with the gear (9), a first water wheel (19) and a second water wheel (20) are respectively sleeved on the rotating shaft (18), the first water wheel (19) and the second water wheel (20) are respectively located in the two transmission boxes (17), and two shunt pipes (21) are respectively connected with one side of the two transmission boxes (17). The two shunt pipes (21) are commonly connected with a reversing valve, and the reversing valve is connected with a main water pipe (22).

9. A self-cleaning device for a jacket according to claim 8, characterized in that A mixing frame (6) is rotatably installed in the reaction tank (2), and a motor for driving the rotation of the mixing frame (6) is arranged on the top of the reaction tank (2), and a transmission assembly is arranged between the motor and a gear (9).

10. A reaction vessel, characterized by, The self-cleaning device with the jacket as claimed in claim 9 is adopted.

Images