A cooling device
By setting up an adjustment unit in the cooling equipment to change the flow direction of the coolant, the problem of uneven coolant temperature was solved, and uniform cooling of azobisisobutyronitrile inside the reactor was achieved, thus improving the cooling efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING SHUANGQI FINE CHEM CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
AI Technical Summary
In existing cooling equipment, the coolant flows from top to bottom inside the reactor tube, causing the temperature to gradually rise, resulting in uneven cooling inside the reactor and affecting the cooling efficiency of azobisisobutyronitrile.
By adjusting the positions of the upper and lower rectangular frames inside the rectangular box using the adjustment unit, the flow direction of the coolant inside the vessel tube is changed, and combined with the heat dissipation fins for heat absorption, the cooling efficiency is improved.
This achieved uniformity in the cooling rate of azobisisobutyronitrile inside the reactor, thus improving cooling efficiency.
Smart Images
Figure CN224415845U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cooling technology, and specifically relates to a cooling device. Background Technology
[0002] Azobisisobutyronitrile (AIBN) is an organic compound, a white crystalline powder that is insoluble in water but soluble in various organic solvents such as ethanol, ether, toluene, and methanol. It is mainly used as a foaming agent and polymerization initiator in rubber and plastics, and can also be used in organic synthesis. Cooling equipment is required to cool AIBN during the production process.
[0003] For example, patent CN221245129U discloses a cooling device for producing azobisisobutyronitrile. The device dissipates heat from the reactor by using coolant in the tubing surrounding the reactor outside the reactor, and heat sinks between the tubing provide auxiliary heat dissipation. The cooled coolant is returned to the tank through a return pipe, and a fan dissipates heat from the return pipe. A cooling machine draws coolant from the tank for cooling, and a circulating pump returns the cooled coolant from the cooling machine back to the tubing.
[0004] When the cooling equipment cools the reactor, the coolant absorbs heat from top to bottom along the inside of the tube. This results in the coolant temperature being higher towards the bottom of the tube, and the heat absorption effect on the reactor gradually decreasing. Consequently, the cooling rate of azobisisobutyronitrile (AIBN) at the upper end of the reactor is greater than that at the lower end, leading to uneven cooling rates of AIBN inside the reactor and thus affecting the cooling efficiency of AIBN inside the reactor. Utility Model Content
[0005] (1) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, the present invention aims to provide a cooling device that solves the problem that in existing technologies, the coolant absorbs heat from the reactor as it flows downwards along the inside of the reactor tube. This results in the coolant temperature increasing towards the bottom of the tube, gradually reducing the heat absorption effect on the reactor. Consequently, the cooling rate of azobisisobutyronitrile (AIBN) at the upper end of the reactor is greater than that at the lower end, leading to uneven cooling rates of AIBN inside the reactor and affecting the overall cooling efficiency.
[0007] (2) Technical solution
[0008] To solve the above-mentioned technical problems, this utility model provides a cooling device, including a reaction vessel, a water tank at the right end of the reaction vessel, a cooler at the right end of the water tank, and a cooling mechanism at the outer end of the reaction vessel. The cooling mechanism includes a water outlet pipe connected to the left end of the water tank, a rectangular box fixedly connected to the left end of the water outlet pipe, a lower connecting pipe fixedly connected to the lower left end of the rectangular box, a vessel-wrapping pipe fixedly connected to the outer end of the reaction vessel, an upper connecting pipe fixedly connected to the upper end of the vessel-wrapping pipe, a water supply pipe fixedly connected to the upper right end of the rectangular box, a water inlet pipe installed at the output end of the cooler, heat dissipation fins fixedly connected at equal intervals on the outer side of the reaction vessel, and adjustment units provided at both the inner and outer ends of the rectangular box.
[0009] Furthermore, the adjustment unit includes an upper rectangular frame connected inside the rectangular box. A first inclined tube is fixedly connected inside the upper rectangular frame, and a second inclined tube is fixedly connected inside the upper rectangular frame. A lower rectangular frame is fixedly connected to the lower side of the upper rectangular frame. A first through tube is fixedly connected to the upper inside of the lower rectangular frame, and a second through tube is fixedly connected to the lower inside of the lower rectangular frame. A pull rod is fixedly connected at the midpoint between the lower front end of the upper rectangular frame and the upper front side of the lower rectangular frame. Connecting frames are fixedly connected to the upper and lower ends of the right front side of the rectangular box. A spring is fixedly connected to the inner right end of the connecting frame, and a sliding rod is fixedly connected to the left end of the spring.
[0010] Furthermore, a pump body is installed inside the water tank, and the output end of the pump body is fixedly connected to the right end of the water outlet pipe located inside the water tank.
[0011] Furthermore, a vertical through groove is provided at the middle of the front end of the rectangular box, the left and right sides of the upper and lower rectangular frames are slidably connected to the left and right ends of the inner side of the rectangular box, and the left and right sides of the pull rod are slidably connected to the inner side of the through groove.
[0012] Furthermore, the left end of the first inclined tube is fixed to the upper left end of the upper rectangular frame, the right end of the first inclined tube is fixed to the lower right end of the upper rectangular frame, the left end of the second inclined tube is fixed to the lower left end of the upper rectangular frame, the right end of the second inclined tube is fixed to the upper right end of the upper rectangular frame, the left end of the first through tube is fixed to the upper left end of the lower rectangular frame, the right end of the first through tube is fixed to the upper right end of the lower rectangular frame, the left end of the second through tube is fixed to the lower left end of the lower rectangular frame, and the right end of the second through tube is fixed to the lower right end of the lower rectangular frame.
[0013] Furthermore, the left end of the outlet pipe is fixed to the lower right end of the rectangular box, the left end of the lower connecting pipe is fixedly connected to the lower end of the coiled tube, the right end of the upper connecting pipe is fixed to the upper left end of the rectangular box, the right end of the water supply pipe is fixedly connected to the input end of the cooler, the left end of the inlet pipe is fixed to the upper right end of the water tank, the left end of the first inclined pipe is in contact with the right end of the upper connecting pipe, the right end of the first inclined pipe is in contact with the left end of the outlet pipe, the left end of the second inclined pipe is in contact with the right end of the lower connecting pipe, the right end of the second inclined pipe is in contact with the left end of the water supply pipe, the left end of the first through pipe is in contact with the right end of the upper connecting pipe, the right end of the first through pipe is in contact with the left end of the water supply pipe, the left end of the second through pipe is in contact with the right end of the lower rectangular frame, and the right end of the second through pipe is in contact with the left end of the outlet pipe.
[0014] Furthermore, the inner side of the connecting frame is slidably connected to the outer side of the sliding rod.
[0015] Furthermore, a slot is provided at the left end of the sliding rod, and the outer side of the pull rod is slidably connected to the inner side of the slot.
[0016] (3) Beneficial effects
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] This invention, by setting an adjustment unit, allows for the reversal of the flow direction of the coolant around the reactor tube after adjusting the positions of the upper and lower rectangular frames inside the rectangular box. This, in turn, reverses the cooling efficiency at both ends of the reactor. Thus, during the cooling process of the reactor, by reversing the flow direction of the coolant around the reactor tube at regular intervals, the cooling rate of azobisisobutyronitrile (AIBN) inside the reactor becomes more uniform, thereby improving the cooling efficiency of AIBN inside the reactor.
[0019] This invention, by setting up a cooling mechanism, cools the reactor with coolant flowing inside the reactor tube while absorbing heat from the reactor through heat dissipation fins. This allows the heat inside the reactor to be absorbed more quickly, thus accelerating the cooling efficiency of the azobisisobutyronitrile (AIBN) inside the reactor. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1This is a schematic diagram of the main structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure at the outer end of the reaction vessel of this utility model;
[0023] Figure 3 This is a schematic diagram of the structure at the outer end of the rectangular box of this utility model;
[0024] Figure 4 This is a schematic diagram of the internal structure of the rectangular box of this utility model;
[0025] Figure 5 This is a schematic diagram of the internal structure of the connecting frame of this utility model.
[0026] The labels in the attached diagram are as follows: 1. Reactor; 2. Water tank; 3. Cooler; 401. Water outlet pipe; 402. Rectangular box; 403. Lower connecting pipe; 404. Circulating pipe around the reactor; 406. Upper connecting pipe; 407. Water supply pipe; 408. Water inlet pipe; 409. Heat dissipation fins; 501. Upper rectangular frame; 502. First inclined pipe; 503. Second inclined pipe; 504. Lower rectangular frame; 505. First through pipe; 506. Second through pipe; 507. Pull rod; 508. Connecting frame; 509. Spring; 510. Sliding rod. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] This specific embodiment is a cooling device, the structural schematic diagram of which is shown below. Figures 1 to 3 As shown, the reactor includes a reactor 1, a water tank 2 at the right end of the reactor 1, a cooler 3 at the right end of the water tank 2, and a cooling mechanism at the outer end of the reactor 1. The cooling mechanism includes a water outlet pipe 401 connected to the left end of the water tank 2. A pump body is installed inside the water tank 2, and the output end of the pump body is fixedly connected to the portion of the right end of the water outlet pipe 401 located inside the water tank 2. A rectangular box 402 is fixedly connected to the left end of the water outlet pipe 401, and a lower connecting pipe 403 is fixedly connected to the lower left end of the rectangular box 402. A reactor-wrapping pipe 404 is fixedly connected to the outer end of the reactor 1, and an upper connecting pipe 406 is fixedly connected to the upper right end of the rectangular box 402. A water supply pipe 407 is fixedly connected to the upper right end of the rectangular box 402. A water inlet pipe 408 is installed at the output end of the cooler 3. Heat dissipation fins 409 are fixedly connected at equal intervals on the outer side of the reactor 1.
[0029] match Figure 4and Figure 5 The rectangular box 402 has adjustment units at both its inner and outer ends. Each adjustment unit includes an upper rectangular frame 501 connected to the inside of the rectangular box 402. A first inclined tube 502 is fixedly connected inside the upper rectangular frame 501. A second inclined tube 503 is fixedly connected inside the upper rectangular frame 501. A lower rectangular frame 504 is fixedly connected to the lower side of the upper rectangular frame 501. A first through tube 505 is fixedly connected to the upper end of the lower rectangular frame 504. A second through tube 506 is fixedly connected to the lower end of the front end of the upper rectangular frame 501 and the upper end of the front side of the lower rectangular frame 504. A pull rod 507 is fixedly connected to the middle position of the lower front end of the upper rectangular frame 501 and the upper front side of the lower rectangular frame 504. A vertical through groove is opened at the middle position of the front end of the rectangular box 402. The left and right sides of the upper rectangular frame 501 and the lower rectangular frame 504 are slidably connected to the left and right ends of the inner side of the rectangular box 402. The left and right sides of the pull rod 507 are slidably connected to the inner side of the through groove. The left end of the first inclined tube 502 is fixed to the upper left end of the upper rectangular frame 501, and the right end of the first inclined tube 502 is fixed to the lower right end of the upper rectangular frame 501. The left end of the second inclined tube 503 is fixed to the lower left end of the upper rectangular frame 501, and the right end of the second inclined tube 503 is fixed to the upper right end of the upper rectangular frame 501. The left end of the first through tube 505 is fixed to the upper left end of the lower rectangular frame 504, and the right end of the first through tube 505 is fixed to the upper right end of the lower rectangular frame 504. The left end of the second through tube 506 is fixed to the lower left end of the lower rectangular frame 504, and the right end of the second through tube 506 is fixed to the lower right end of the lower rectangular frame 504. A connecting frame 508 is fixedly connected to the upper and lower ends of the front right side of the rectangular box 402. A spring 509 is fixedly connected to the inner right end of the connecting frame 508, and a sliding rod 510 is fixedly connected to the left end of the spring 509. The inner side of the connecting frame 508 and the outer side of the sliding rod 510 are slidably connected. A slot is provided at the left end of the sliding rod 510, and the outer side of the pull rod 507 is slidably connected to the inner side of the slot. After the pull rod 507 is slid to the upper or lower end of the inner side of the through groove, the spring 509 pushes the sliding rod 510 to the left until the slot at the left end of the sliding rod 510 slides to the outer side of the pull rod 507, at which point the pull rod 507 can be fixed.
[0030] The left end of the outlet pipe 401 is fixed to the lower right end of the rectangular box 402; the left end of the lower connecting pipe 403 is fixedly connected to the lower end of the coiled tube 404; the right end of the upper connecting pipe 406 is fixed to the upper left end of the rectangular box 402; the right end of the water supply pipe 407 is fixedly connected to the input end of the cooler 3; the left end of the inlet pipe 408 is fixed to the upper right end of the water tank 2; the left end of the first inclined pipe 502 is in contact with the right end of the upper connecting pipe 406; and the right end of the first inclined pipe 502 is connected to the outlet pipe 402. The left ends of water pipe 401 are in contact with each other, the left end of the second inclined pipe 503 is in contact with the right end of the lower connecting pipe 403, the right end of the second inclined pipe 503 is in contact with the left end of the water supply pipe 407, the left end of the first connecting pipe 505 is in contact with the right end of the upper connecting pipe 406, the right end of the first connecting pipe 505 is in contact with the left end of the water supply pipe 407, the left end of the second connecting pipe 506 is in contact with the right end of the lower rectangular frame 504, and the right end of the second connecting pipe 506 is in contact with the left end of the outlet pipe 401. After the upper rectangular frame 501 is slid to the middle position inside the rectangular box 402, the water in the outlet pipe 401 will enter the first inclined pipe 502 and then the upper connecting pipe 406. It will then flow from top to bottom into the lower connecting pipe 403 through the upper end of the vessel-encircling pipe 404, and then into the water supply pipe 407 via the second inclined pipe 503. After the lower rectangular frame 504 is slid to the middle position inside the rectangular box 402, the water in the outlet pipe 401 will enter the second connecting pipe 506 and then the lower connecting pipe 403. It will then flow from bottom to top into the upper connecting pipe 406 through the lower end of the vessel-encircling pipe 404. The coolant then flows into the water supply pipe 407 through the first through pipe 505. By adjusting the position of the upper rectangular frame 501 and the lower rectangular frame 504 inside the rectangular box 402 through the adjustment unit, the direction of the coolant flow around the reactor tube 404 can be changed, thereby changing the cooling efficiency of the upper and lower ends of the reactor 1. Thus, during the cooling process of the reactor 1, by changing the direction of the coolant flow around the reactor tube 404 at regular intervals, the cooling rate of azobisisobutyronitrile inside the reactor 1 can be made more uniform, thereby improving the cooling efficiency of azobisisobutyronitrile inside the reactor 1.
[0031] Working principle: When cooling the azobisisobutyronitrile inside the reactor 1, the pump inside the water tank 2 is activated to draw the coolant into the outlet pipe 401, and then through the lower connecting pipe 403 or the upper connecting pipe 406 into the reactor tube 404 to cool the reactor 1. After cooling the reactor 1, the coolant then flows into the water supply pipe 407 through the upper connecting pipe 406 or the lower connecting pipe 403 and then into the cooler 3 for further cooling. The cooled coolant then re-enters the water tank 2 through the inlet pipe 408 to be extracted for use. During the cooling process, the positions of the upper rectangular frame 501 and the lower rectangular frame 504 inside the rectangular box 402 are adjusted at regular intervals to change the flow direction of the coolant inside the reactor tube 404, so that the azobisisobutyronitrile inside the reactor 1 is cooled more evenly.
[0032] All technical features in this embodiment can be freely combined according to actual needs.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cooling device, comprising a reaction vessel (1), characterized in that, A water tank (2) is provided at the right end of the reactor (1), a cooler (3) is provided at the right end of the water tank (2), a cooling mechanism is provided at the outer end of the reactor (1), the cooling mechanism includes a water outlet pipe (401) connected to the left end of the water tank (2), a rectangular box (402) is fixedly connected to the left end of the water outlet pipe (401), a lower connecting pipe (403) is fixedly connected to the lower left end of the rectangular box (402), a reactor coil (404) is fixedly connected to the outer end of the reactor (1), an upper connecting pipe (406) is fixedly connected to the upper end of the reactor coil (404), a water supply pipe (407) is fixedly connected to the upper right end of the rectangular box (402), a water inlet pipe (408) is installed at the output end of the cooler (3), heat dissipation fins (409) are fixedly connected at equal intervals on the outer side of the reactor (1), and adjustment units are provided at both the inner and outer ends of the rectangular box (402).
2. The cooling device according to claim 1, characterized in that, The adjustment unit includes an upper rectangular frame (501) connected inside a rectangular box (402). A first inclined tube (502) is fixedly connected inside the upper rectangular frame (501). A second inclined tube (503) is fixedly connected inside the upper rectangular frame (501). A lower rectangular frame (504) is fixedly connected to the lower side of the upper rectangular frame (501). A first through tube (505) is fixedly connected to the upper end of the lower rectangular frame (504). 4) The lower end of the interior is fixedly connected to a second through pipe (506). A pull rod (507) is fixedly connected to the lower front end of the upper rectangular frame (501) and the middle position of the upper front side of the lower rectangular frame (504). A connecting frame (508) is fixedly connected to the upper and lower ends of the front right side of the rectangular box (402). A spring (509) is fixedly connected to the right inner side of the connecting frame (508). A sliding rod (510) is fixedly connected to the left end of the spring (509).
3. The cooling device according to claim 1, characterized in that, The water tank (2) is equipped with a pump body inside, and the output end of the pump body is fixedly connected to the right end of the water outlet pipe (401) located inside the water tank (2).
4. A cooling device according to claim 2, characterized in that, A vertical through slot is provided at the middle of the front end of the rectangular box (402). The left and right sides of the upper rectangular frame (501) and the lower rectangular frame (504) are slidably connected to the left and right ends of the inner side of the rectangular box (402). The left and right sides of the pull rod (507) are slidably connected to the inner side of the through slot.
5. A cooling device according to claim 2, characterized in that, The left end of the first inclined tube (502) is fixed to the upper left end of the upper rectangular frame (501), the right end of the first inclined tube (502) is fixed to the lower right end of the upper rectangular frame (501), the left end of the second inclined tube (503) is fixed to the lower left end of the upper rectangular frame (501), the right end of the second inclined tube (503) is fixed to the upper right end of the upper rectangular frame (501), the left end of the first through tube (505) is fixed to the upper left end of the lower rectangular frame (504), the right end of the first through tube (505) is fixed to the upper right end of the lower rectangular frame (504), the left end of the second through tube (506) is fixed to the lower left end of the lower rectangular frame (504), and the right end of the second through tube (506) is fixed to the lower right end of the lower rectangular frame (504).
6. A cooling device according to claim 2, characterized in that, The left end of the outlet pipe (401) is fixed to the lower right end of the rectangular box (402), the left end of the lower connecting pipe (403) is fixedly connected to the lower end of the coiled tube (404), the right end of the upper connecting pipe (406) is fixed to the upper left end of the rectangular box (402), the right end of the water supply pipe (407) is fixedly connected to the input end of the cooler (3), the left end of the inlet pipe (408) is fixed to the upper right end of the water tank (2), the left end of the first inclined pipe (502) is in contact with the right end of the upper connecting pipe (406), and the right end of the first inclined pipe (502) is connected to the outlet pipe. The left ends of the pipe (401) are in contact with each other, the left end of the second inclined pipe (503) is in contact with the right end of the lower connecting pipe (403), the right end of the second inclined pipe (503) is in contact with the left end of the water supply pipe (407), the left end of the first through pipe (505) is in contact with the right end of the upper connecting pipe (406), the right end of the first through pipe (505) is in contact with the left end of the water supply pipe (407), the left end of the second through pipe (506) is in contact with the right end of the lower rectangular frame (504), and the right end of the second through pipe (506) is in contact with the left end of the outlet pipe (401).
7. A cooling device according to claim 2, characterized in that, The inner side of the connecting frame (508) is slidably connected to the outer side of the sliding rod (510).
8. A cooling device according to claim 2, characterized in that, The left end of the sliding rod (510) is provided with a slot, and the outer side of the pull rod (507) is slidably connected to the inner side of the slot.