Reaction kettle waste heat recovery device and reaction kettle for efficient flame retardant production

Abstract

The invention discloses a reaction kettle waste heat recovery device and a reaction kettle for efficient flame retardant production, and relates to the technical field of heat exchange waste heat recovery. The reaction kettle waste heat recovery device comprises a heat preservation box, the side wall of the heat preservation box is fixedly connected with a fixing frame, the bottom of the heat preservation box is fixedly connected with an electromagnetic valve, the bottom of the electromagnetic valve is fixedly connected with a water supply pipe, and the side wall of the water supply pipe is fixedly connected with a first connecting pipe; and the other end of the first connecting pipe is fixedly connected with a first annular pipe. According to the reaction kettle waste heat recovery device and the reaction kettle for efficient flame retardant production, before efficient flame retardants are discharged, the efficient flame retardants are subjected to multiple times of heat exchange, meanwhile, the heat exchange path can be improved, meanwhile, waste heat of gas on the inner wall of the kettle body and gas in the kettle body can be conveniently recovered, the waste heat recovery efficiency and effect can be improved, and in addition, the energy consumption is reduced. And the recycled waste heat can be utilized to perform heat exchange on the materials and the inner wall of the kettle body, so that the preheating effect is realized, and the reaction efficiency and effect can be improved.

Description

Technical Field

[0001] This invention relates to the field of waste heat recovery technology, specifically to a waste heat recovery device for a reaction vessel and a reaction vessel for producing high-efficiency flame retardants. Background Technology

[0002] A reactor waste heat recovery device is a specialized piece of equipment designed to recover waste heat from reactors. Through a series of heat exchange processes, it recovers and utilizes the waste heat generated during the production process. Reactors used in the production of high-efficiency flame retardants are widely used in the production process and are indispensable equipment in fields such as chemical engineering and materials science. They ensure the stability and efficiency of the flame retardant production process, which requires heating of the reactor.

[0003] However, existing waste heat recovery devices for reactors and reactors used for producing high-efficiency flame retardants are not convenient for recovering and reusing the waste heat of the flame retardant liquid, the inner wall of the reactor, and the hot gas inside the reactor after the reaction. This not only easily leads to the waste of heat, but also affects the production efficiency of flame retardants. Summary of the Invention

[0004] The purpose of this invention is to provide a waste heat recovery device for a reaction vessel and a reaction vessel for producing high-efficiency flame retardants, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waste heat recovery device for a reaction vessel, comprising an insulation box, a fixing frame fixedly connected to the side wall of the insulation box, and a solenoid valve fixedly connected to the bottom of the insulation box. A water supply pipe is fixedly connected to the bottom of the solenoid valve, and a first connecting pipe is fixedly connected to the side wall of the water supply pipe. A first annular pipe is fixedly connected to the other end of the first connecting pipe. A first circular ring is rotatably connected to the side wall of the first annular pipe, and a plurality of arrayed water inlet pipes are fixedly connected to the side wall of the first circular ring. A connecting pipe is fixedly connected to the side wall of the insulation box, and a heat exchanger is provided on the side wall of the connecting pipe. A water pump is fixedly connected to the lower end of the connecting pipe, and a return water pipe is fixedly connected to the lower end of the water pump. A second connecting pipe is fixedly connected to the side wall of the return water pipe, and a second annular pipe is fixedly connected to the other end of the second connecting pipe. A second circular ring is rotatably connected to the side wall of the second annular pipe, and a plurality of arrayed water outlet pipes are fixedly connected to the side wall of the second circular ring. An annular cover assembly is connected to the lower part of the second annular pipe via a lifting mechanism. The ring-shaped enclosure assembly includes an inner ring, an outer ring, and a middle ring. Multiple third connecting pipes are fixedly connected to the side wall of the water supply pipe, and these third connecting pipes are inserted into the ring-shaped enclosure assembly. Multiple fourth connecting pipes are fixedly connected to the side wall of the return water pipe, and these fourth connecting pipes are inserted into the ring-shaped enclosure assembly. A first disc is fixedly connected to the lower end of the return water pipe via a first connecting rod, and the first disc is inserted into the inner ring. An L-shaped frame is fixedly connected to the side wall of the return water pipe, and a first rotating ring is rotatably connected to the bottom of the L-shaped frame. Multiple... The array of baffles is arranged, and the middle ring and the baffles are arranged through the first rotating ring. The side wall of the outer ring is fixedly inserted with multiple arrayed first flow pipes, and the side wall of the middle ring is fixedly inserted with multiple arrayed second flow pipes. The side wall of the inner ring is fixedly inserted with multiple arrayed third flow pipes. The rotation of the middle ring is driven by a driving mechanism. The bottom of the heat preservation box is provided with a first recovery mechanism for recovering waste heat, and the heat preservation box is provided with a second recovery mechanism for recovering waste heat in the gas.

[0006] Preferably, the first recycling mechanism includes a hollow ring, and a float ring is fixedly connected to the bottom of the hollow ring. The side wall of the water supply pipe is fixedly connected to an L-shaped first fixed pipe, and a first flexible hose is fixedly connected between the hollow ring and the first fixed pipe. The side wall of the return water pipe is fixedly connected to an L-shaped second fixed pipe, and a second flexible hose is fixedly connected between the hollow ring and the second fixed pipe. Two symmetrically arranged first T-shaped guide rods are fixedly connected to the top of the hollow ring.

[0007] Preferably, the second recycling mechanism includes a partition fixedly connected inside the insulated box, which divides the insulated box into an upper chamber and a lower chamber. The upper end of the connecting pipe is connected to the lower chamber. The top of the partition has a plurality of arrayed first through holes. The bottom of the partition is slidably connected to a moving plate via a moving mechanism. The bottom of the moving plate has a plurality of arrayed second through holes. A bent pipe is provided in the upper chamber. One end of the bent pipe is connected to a suction pipe, and the other end of the bent pipe is connected to an exhaust pipe. The end of the exhaust pipe is provided with a suction mechanism.

[0008] Preferably, the lifting mechanism includes an iron plate fixedly connected to the side wall of the return water pipe, and two symmetrically arranged first sleeves are fixedly connected to the bottom of the iron plate. A first sleeve rod is inserted into the first sleeve, and a connecting plate is fixedly connected to the bottom of the first sleeve rod. A first electromagnet is fixedly connected to the top of the connecting plate, and a first spring is sleeved in each of the first sleeves. The inner ring and the outer ring are fixed to the bottom of the connecting plate.

[0009] Preferably, the rotating mechanism includes a guide block fixedly connected to the bottom of the connecting plate, and an annular guide rail slidably connected to the side wall of the guide block. The annular guide rail is fixedly sleeved on the side wall of the middle ring, and an annular groove is provided at the top of the middle ring. A second rotating ring is rotatably connected in the annular groove, and one of the fourth connecting pipes is inserted into the side wall of the second rotating ring. A first fixing box is fixedly inserted into the side wall of the fourth connecting pipe, and a first rotating fan is rotatably connected in the first fixing box through a first rotating shaft. A rubber wheel is fixedly connected to one end of the first rotating shaft.

[0010] Preferably, the moving mechanism includes a fixed plate fixedly connected to the bottom of the partition, and two symmetrically arranged second sleeve rods are fixedly connected to the side wall of the fixed plate. The side wall of the second sleeve rod is fitted with a second sleeve, and the other end of the second sleeve is fixedly connected with a connecting block. The connecting block is fixed to the side wall of the moving plate, and a second spring is fitted to the side wall of each second sleeve. A second electromagnet is fixedly connected to the side wall of the fixed plate, and an iron block is fixedly connected to the side wall of the connecting block.

[0011] Preferably, the suction mechanism includes a first support pipe fixedly connected to the end of the exhaust pipe, and a second support pipe fixedly connected to the end of the first support pipe. A first one-way valve is provided inside the exhaust pipe, and a second one-way valve is provided inside the second support pipe. A working pipe is fixedly connected to the side wall of the first support pipe, and a piston is connected inside the working pipe through a reset mechanism. The movement of the piston is driven by a pushing mechanism.

[0012] Preferably, the reset mechanism includes a second connecting rod fixedly connected to the top of the piston, and a moving block is fixedly connected to the top of the second connecting rod. Two symmetrically arranged second T-shaped guide rods are inserted into the top of the moving block, and the lower ends of the second T-shaped guide rods are fixed to the side wall of the first support tube. A retaining ring is fixedly sleeved on the side wall of each second T-shaped guide rod, and a third spring is sleeved on the side wall of each second T-shaped guide rod.

[0013] Preferably, the pushing mechanism includes a pushing rod fixedly connected to the top of the moving block, and a second fixed box is fixedly inserted into the side wall of the connecting pipe. A second rotating fan is rotatably connected inside the second fixed box via a second rotating shaft. A rotating disk is fixedly connected to one end of the second rotating shaft, and a plurality of arrayed triangular blocks are fixedly connected to the side wall of the rotating disk.

[0014] A high-efficiency flame retardant production reactor includes a reactor body, a stirring rod, blades, a discharge valve, and a waste heat recovery device as described above. Each blade has a heat exchange chamber, and the top of the stirring rod has a third through hole. A first annular pipe and a second annular pipe are inserted into the third through hole, and an annular cover assembly is inserted into the bottom of the third through hole. The other end of the water inlet pipe and the other end of the water outlet pipe pass through the heat exchange chamber. The first fixed pipe and the second fixed pipe are fixedly inserted into the top of the reactor body, and a first T-shaped guide rod is inserted into the top of the reactor body. The other end of the exhaust pipe is fixedly inserted into the side wall of the reactor body. A hollow ring is disposed inside the reactor body and can slide on the inner wall of the reactor body. A second disc is rotatably connected to the top of the third through hole, and the second disc is fixedly sleeved on the side wall of the water supply pipe and the water return pipe. The water supply pipe and the water return pipe are inserted into the third through hole, and the fixing frame is fixed to the side wall of the reactor body.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This type of reactor waste heat recovery device and reactor for producing high-efficiency flame retardants, through the installation of a rotating mechanism, allows for the recovery of waste heat from the high-efficiency flame retardant liquid during operation. When this is necessary, the solenoid valve is opened, and the water pump is started to draw the liquid. At this time, cooling water from the insulation box enters the first annular pipe through the supply pipe and the first connecting pipe, and the inlet pipe enters the heat exchange chamber. This allows heat exchange between the blades and the high-efficiency flame retardant liquid, recovering the waste heat. The heated water then enters the return pipe through the outlet pipe, the second annular pipe, and the second connecting pipe, and then enters the insulation box through the water pump and connecting pipe. Meanwhile, cold water from the supply pipe enters the inner, middle, and outer rings through the third connecting pipe, and returns to the return pipe through the fourth connecting pipe. During drainage, the first electromagnet is de-energized. At this time, the connecting plate can... The spring moves downwards, simultaneously causing the annular cover assembly to move downwards and abut against the bottom of the vessel. The inner ring lifts the inlet cover of the discharge valve, opening it. At this point, the high-efficiency flame retardant can enter between the outer and middle rings through the first flow pipe, then between the inner and middle rings through the second flow pipe, and finally enter the inner ring through the third flow pipe and be discharged through the discharge valve. This allows for multiple heat exchanges before discharge, improving the heat exchange path of the high-efficiency flame retardant. Furthermore, the hot water after heat exchange, discharged through the fourth connecting pipe, enters the first fixed box and impacts the side wall of the first rotating fan, causing the first rotating shaft and rubber wheel to rotate. This, in turn, drives the middle ring and baffle to rotate, agitating the high-efficiency flame retardant liquid and improving heat exchange efficiency, thereby enhancing the efficiency and effectiveness of waste heat recovery.

[0016] This type of reactor waste heat recovery device and reactor for producing high-efficiency flame retardants, by setting up a first recovery mechanism, allows cooling water to enter the hollow ring through the first fixed pipe and the first flexible hose during waste heat recovery, and return to the connecting pipe through the second flexible hose and the second fixed pipe. At the same time, as the high-efficiency flame retardant is gradually discharged from the reactor, the floating ring can gradually move downward with the drop in liquid level, and drive the hollow ring to slide downward along the inner wall of the reactor. The cooling water in the hollow ring can exchange heat with the heat of the inner wall of the reactor, thereby facilitating the recovery of waste heat from the inner wall of the reactor and ensuring the efficiency and effectiveness of waste heat recovery.

[0017] This type of waste heat recovery device for reactors and reactors used in the production of high-efficiency flame retardants, by setting up a second recovery mechanism, energizes a second electromagnet during waste heat recovery. The energized electromagnet attracts an iron block, causing the connecting block to move closer to the fixed plate. Simultaneously, the second spring is compressed, which in turn moves a movable plate, causing the second through-hole to be misaligned with the first through-hole. At this point, the movable plate can seal the partition, ensuring that the cooling water in the insulation box is located in the upper and lower chambers respectively, preventing mutual interference. When the hot water after heat exchange passes through the connecting pipe... The piston can enter the second fixed box and impact the surface of the second rotating fan, causing the second rotating shaft to rotate. When the second rotating shaft rotates, it can drive the rotating disk to rotate. When the triangular block abuts against the upper end of the push rod, it can push the piston downward. At the same time, the third spring is compressed. When the triangular block passes the upper end of the push rod, the piston can move upward and reset under the action of the third spring. This process repeats, allowing the piston to move up and down in the working tube. When the piston moves upward, it creates a negative pressure in the first support tube. Simultaneously, the first one-way valve opens and the second one-way valve closes. At this point, the hot gas inside the reactor can be extracted and enters the curved pipe through the extraction pipe to exchange heat with the cooling water in the upper chamber. The gas after heat exchange enters the first support pipe through the exhaust pipe. When the piston moves downward, it can compress the gas in the first support pipe. At the same time, the first one-way valve closes and the second one-way valve opens. At this time, the gas in the first support pipe can be discharged through the second support pipe for treatment, which facilitates the recovery of waste heat from the gas inside the reactor, ensuring the efficiency and effect of waste heat recovery. Furthermore, during the next reaction, the second electromagnet is de-energized. At this time, the piston moves downward. The movable plate can move and reset under the action of the second spring, so that the second through hole coincides with the first through hole. At this time, the hot water in the upper chamber and the lower chamber mixes. Similarly, hot water can be supplied into the heat exchange chamber, the annular hood assembly and the hollow ring to exchange heat with the material and the inner wall of the vessel, achieving a preheating effect, which can improve the efficiency and effect of the reaction. In addition, the waste heat can be reused, making it more energy-saving and environmentally friendly. The preheated water enters the insulation box through the connecting pipe. At the same time, the heat exchanger can be opened to cool the preheated water, and the air in the vessel can be discharged through the exhaust pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the waste heat recovery device for the reactor in this invention;

[0019] Figure 2 This is a partial cross-sectional view of the insulation box in this invention;

[0020] Figure 3 This is a partial cross-sectional view of the insulation box in this invention from another perspective;

[0021] Figure 4This is a partial cross-sectional view of the outer ring and the middle ring in this invention;

[0022] Figure 5 This is a schematic diagram of the overall structure of the reactor used for producing high-efficiency flame retardants in this invention;

[0023] Figure 6 This is a partial cross-sectional view of the vessel body in this invention;

[0024] Figure 7 This is a partial cross-sectional view of the stirring rod and blades in this invention;

[0025] Figure 8 for Figure 1 Enlarged structural diagram at point A;

[0026] Figure 9 for Figure 1 Enlarged structural diagram at point B;

[0027] Figure 10 for Figure 3 Enlarged structural diagram at point C;

[0028] Figure 11 for Figure 2 Enlarged structural diagram at point D;

[0029] Figure 12 for Figure 2 Enlarged structural diagram at point E;

[0030] Figure 13 for Figure 4 Enlarged structural diagram at point F;

[0031] Figure 14 for Figure 5 Enlarged structural diagram at point G;

[0032] Figure 15 for Figure 6 Enlarged structural diagram at point H;

[0033] Figure 16 for Figure 7 Enlarged structural diagram at point I;

[0034] Figure 17 for Figure 7 Enlarged structural diagram at point J;

[0035] Figure 18 for Figure 12 A magnified structural diagram at point K.

[0036] In the diagram: 101, Insulation box; 102, Fixing frame; 103, Solenoid valve; 104, Water supply pipe; 105, First connecting pipe; 106, First annular pipe; 107, Water inlet pipe; 108, Water return pipe; 109, Connecting pipe; 110, Water pump; 111, First connecting rod; 112, First disc; 113, Second connecting pipe; 114, Second annular pipe; 115, Water outlet pipe; 116, Inner ring; 117, Outer ring; 118, Third flow pipe; 119, First flow pipe; 120, Middle ring; 121, First rotating ring; 122, Baffle; 123. 124. Third connecting pipe; 125. Fourth connecting pipe; 126. Heat exchanger; 127. L-shaped frame; 128. Second flow channel pipe; 129. First ring; 1201. Second ring; 202. Iron plate; 203. Connecting plate; 204. First sleeve; 205. First spring; 206. First electromagnet; 301. Guide block; 302. Annular guide rail; 303. Annular groove; 304. Second rotating ring; 305. First fixed box; 307. First rotating fan; 308. First rotating shaft; 309. Rubber wheel; 401. Partition plate; 402. First passage 403. Hole; 404. Moving plate; 405. Second through hole; 406. Upper chamber; 407. Lower chamber; 408. Bend; 409. Suction pipe; 501. Exhaust pipe; 502. Connecting block; 503. Fixing plate; 504. Second sleeve; 505. Second sleeve rod; 506. Second spring; 507. Iron block; 601. Second support pipe; 602. Second support pipe; 603. First check valve; 604. Second check valve; 605. Working pipe; 606. Piston; 701. Second connecting rod; 702. Moving block; 703. Second T-shaped guide rod; 704, retaining ring; 705, third spring; 801, push rod; 802, rotating disk; 803, triangular block; 804, second fixed box; 805, second rotating shaft; 806, second rotating fan; 901, hollow ring; 902, floating ring; 903, first fixed tube; 904, first flexible hose; 905, second flexible hose; 906, first T-shaped guide rod; 907, second fixed tube; 1001, vessel body; 1002, stirring rod; 1003, blade; 1004, discharge valve; 11, heat exchange chamber; 12, third through hole; 13, second disc. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figures 1-18This invention provides a technical solution: a waste heat recovery device for a reaction vessel, comprising an insulation box 101, a fixing frame 102 fixedly connected to the side wall of the insulation box 101, and a solenoid valve 103 fixedly connected to the bottom of the insulation box 101. A water supply pipe 104 is fixedly connected to the bottom of the solenoid valve 103, and a first connecting pipe 105 is fixedly connected to the side wall of the water supply pipe 104. A first annular pipe 106 is fixedly connected to the other end of the first connecting pipe 105. A first circular ring 128 is rotatably connected to the side wall of the first annular pipe 106, and a plurality of arrayed water inlet pipes 107 are fixedly connected to the side wall of the first circular ring 128. A connecting pipe 109 is fixedly connected to the side wall of the insulation box 101, and a heat exchanger 12 is provided on the side wall of the connecting pipe 109. 5. A water pump 110 is fixedly connected to the lower end of the connecting pipe 109, and a return water pipe 108 is fixedly connected to the lower end of the water pump 110. A second connecting pipe 113 is fixedly connected to the side wall of the return water pipe 108, and a second annular pipe 114 is fixedly connected to the other end of the second connecting pipe 113. A second circular ring 129 is rotatably connected to the side wall of the second annular pipe 114, and multiple arrayed water outlet pipes 115 are fixedly connected to the side wall of the second circular ring 129. An annular cover assembly is connected to the lower part of the second annular pipe 114 via a lifting mechanism. The annular cover assembly includes an inner ring 116, an outer ring 117, and a middle ring 120. Multiple third connecting pipes 123 are fixedly connected to the side wall of the water supply pipe 104, and the third connecting pipes 123 are inserted into the annular cover assembly. Multiple fourth connecting pipes 124 are fixedly connected to the side wall of pipe 108, and the fourth connecting pipes 124 are inserted into the annular cover assembly. The lower end of the return water pipe 108 is fixedly connected to a first disc 112 via a first connecting rod 111, and the first disc 112 is inserted into the inner ring 116. An L-shaped bracket 126 is fixedly connected to the side wall of the return water pipe 108, and a first rotating ring 121 is rotatably connected to the bottom of the L-shaped bracket 126. Multiple arrayed baffles 122 are fixedly inserted into the side wall of the middle ring 120, and the middle ring 120 and the baffles 122 pass through the first rotating ring 121. Multiple arrayed first flow pipes 119 are fixedly inserted into the side wall of the outer ring 117, and multiple arrayed second flow pipes 119 are fixedly inserted into the side wall of the middle ring 120. Multiple arrayed third flow pipes 118 are fixedly inserted into the side wall of the inner ring 116 of the channel pipe 127, and the rotation of the middle ring 120 is driven by a drive mechanism. A first recovery mechanism for recovering waste heat is provided below the heat preservation box 101, and a second recovery mechanism for recovering waste heat in the gas is provided inside the heat preservation box 101. Before the high-efficiency flame retardant is discharged, it undergoes multiple heat exchanges, which improves the heat exchange path and facilitates the recovery of waste heat from the inner wall of the vessel 1001 and the internal gas. This improves the efficiency and effect of waste heat recovery. Furthermore, the recovered waste heat can be used to exchange heat with the material and the inner wall of the vessel 1001 to achieve a preheating effect, thereby improving the efficiency and effect of the reaction.

[0039] The first recovery mechanism includes a hollow ring 901, with a float ring 902 fixedly connected to the bottom of the hollow ring 901. An L-shaped first fixed pipe 903 is fixedly connected to the side wall of the water supply pipe 104, and a first flexible hose 904 is fixedly connected between the hollow ring 901 and the first fixed pipe 903. An L-shaped second fixed pipe 907 is fixedly connected to the side wall of the return water pipe 108, and a second flexible hose 905 is fixedly connected between the hollow ring 901 and the second fixed pipe 907. Two symmetrically arranged first T-shaped guide rods 906 are fixedly connected to the top of the hollow ring 901. During waste heat recovery, cooling... Water can enter the hollow ring 901 through the first fixed pipe 903 and the first flexible pipe 904, and return to the connecting pipe 109 through the second flexible pipe 905 and the second fixed pipe 907. At the same time, as the high-efficiency flame retardant in the vessel 1001 is gradually discharged, the floating ring 902 can gradually move downward as the liquid level drops, and drive the hollow ring 901 to slide downward along the inner wall of the vessel 1001. The cooling water in the hollow ring 901 can exchange heat with the heat of the inner wall of the vessel 1001, thereby facilitating the recovery of the waste heat of the inner wall of the vessel 1001 and ensuring the efficiency and effect of waste heat recovery.

[0040] The second recovery mechanism includes a partition 401 fixedly connected inside the insulated box 101, which divides the insulated box 101 into an upper chamber 405 and a lower chamber 406. The upper end of the connecting pipe 109 is connected to the lower chamber 406. The top of the partition 401 has a plurality of arrayed first through holes 402. The bottom of the partition 401 is slidably connected to a moving plate 403 via a moving mechanism. The bottom of the moving plate 403 has a plurality of arrayed second through holes 404. A bent pipe 407 is provided inside the upper chamber 405, and one end of the bent pipe 407 is connected to a suction pipe 408. The other end of the bent pipe 407... The end is connected to an exhaust pipe 409, and the end of the exhaust pipe 409 is equipped with an air extraction mechanism. When performing waste heat recovery, the moving mechanism drives the moving plate 403 to move, so that the second through hole 404 is misaligned with the first through hole 402. At this time, the moving plate 403 can be used to seal the partition 401, so that the cooling water in the heat preservation box 101 is in the upper chamber 405 and the lower chamber 406 respectively, which can avoid mutual interference. In addition, the gas inside the vessel body 1001 can be extracted through the air extraction pipe 408 and enter the bent pipe 407 to exchange heat with the cold water. The gas after heat exchange is discharged through the exhaust pipe 409.

[0041] The lifting mechanism includes an iron plate 201 fixedly connected to the side wall of the return water pipe 108, and two symmetrically arranged first sleeves 204 are fixedly connected to the bottom of the iron plate 201. A first sleeve rod 203 is inserted into the first sleeve 204, and a connecting plate 202 is fixedly connected to the bottom of the first sleeve rod 203. A first electromagnet 206 is fixedly connected to the top of the connecting plate 202, and a first spring 205 is sleeved in each of the first sleeves 204. The inner ring 116 and the outer ring 117 are fixed to the bottom of the connecting plate 202. When the first electromagnet 206 is de-energized, the connecting plate 202 can move downward under the action of the first spring 205. At the same time, it drives the annular cover assembly to move downward and abut against the bottom of the vessel body 1001. In addition, the inner ring 116 lifts the inlet of the discharge valve 1004.

[0042] The rotating mechanism includes a guide block 301 fixedly connected to the bottom of the connecting plate 202, and an annular guide rail 302 slidably connected to the side wall of the guide block 301. The annular guide rail 302 is fixedly sleeved on the side wall of the middle ring 120, and an annular groove 303 is opened at the top of the middle ring 120. A second rotating ring 304 is rotatably connected in the annular groove 303, and one of the fourth connecting pipes 124 is inserted into the side wall of the second rotating ring 304. A first fixing box 305 is fixedly inserted into the side wall of the fourth connecting pipe 124, and the first fixing box 305 has a passage. A first rotating fan 307 is rotatably connected to a first rotating shaft 308. A rubber wheel 309 is fixedly connected to one end of the first rotating shaft 308. When the hot water after heat exchange is discharged through the fourth connecting pipe 124, it can enter the first fixed box 305 and impact the side wall of the first rotating fan 307, causing the first rotating shaft 308 and the rubber wheel 309 to rotate, thereby driving the middle ring 120 and the baffle 122 to rotate, which can agitate the high-efficiency flame retardant liquid, making the heat exchange efficiency better, thereby improving the efficiency and effect of waste heat recovery.

[0043] The moving mechanism includes a fixed plate 502 fixedly connected to the bottom of the partition 401, and two symmetrically arranged second sleeve rods 504 fixedly connected to the side wall of the fixed plate 502. The side wall of the second sleeve rods 504 is fitted with a second sleeve 503, and the other end of the second sleeve 503 is fixedly connected to a connecting block 501. The connecting block 501 is fixed to the side wall of the moving plate 403, and a second spring 505 is fitted to the side wall of each second sleeve 503. A second electromagnet 507 is fixedly connected to the side wall of the fixed plate 502, and an iron block 506 is fixedly connected to the side wall of the connecting block 501. When performing waste heat recovery, the second electromagnet 507 is energized. After the second electromagnet 507 is energized, it attracts the iron block 506, causing the connecting block 501 to move closer to the fixed plate 502. At the same time, the second spring 505 is compressed, and it can drive the moving plate 403 to move.

[0044] The suction mechanism includes a first support pipe 601 fixedly connected to the end of an exhaust pipe 409, and a second support pipe 602 fixedly connected to the end of the first support pipe 601. A first one-way valve 603 is installed inside the exhaust pipe 409, with the first one-way valve 603 flowing from the exhaust pipe 409 to the first support pipe 601. A second one-way valve 604 is installed inside the second support pipe 602, with the second one-way valve 604 flowing from the first support pipe 601 to the second support pipe 602. A working pipe 605 is fixedly connected to the side wall of the first support pipe 601, and a piston 606 is connected inside the working pipe 605 via a reset mechanism. The piston 606 is moved by a pushing mechanism, which, along with the reset mechanism, causes the piston 606 to reciprocate up and down within the working pipe 605. When the piston 606 moves upward, it creates a negative pressure in the first support tube 601. At the same time, the first one-way valve 603 opens and the second one-way valve 604 closes. This allows the hot gas inside the vessel 1001 to be extracted and enter the bent pipe 407 through the extraction pipe 408 to exchange heat with the cooling water in the upper chamber 405. The gas after heat exchange enters the first support tube 601 through the exhaust pipe 409. When the piston 606 moves downward, it compresses the gas inside the first support tube 601. At the same time, the first one-way valve 603 closes and the second one-way valve 604 opens. This allows the gas inside the first support tube 601 to be discharged through the second support tube 602 for processing, thus facilitating the recovery of waste heat from the gas inside the vessel 1001 and ensuring the efficiency and effectiveness of waste heat recovery.

[0045] The reset mechanism includes a second connecting rod 701 fixedly connected to the top of the piston 606, and a moving block 702 fixedly connected to the top of the second connecting rod 701. Two symmetrically arranged second T-shaped guide rods 703 are inserted into the top of the moving block 702, and the lower ends of the second T-shaped guide rods 703 are fixed to the side wall of the first support tube 601. A retaining ring 704 is fixedly sleeved on the side wall of each second T-shaped guide rod 703, and a third spring 705 is sleeved on the side wall of each second T-shaped guide rod 703, which guides and resets the movement of the piston 606.

[0046] The pushing mechanism includes a push rod 801 fixedly connected to the top of the moving block 702, and a second fixed box 804 fixedly inserted into the side wall of the connecting pipe 109. A second rotating fan 806 is rotatably connected to the second fixed box 804 via a second rotating shaft 805. A rotating disk 802 is fixedly connected to one end of the second rotating shaft 805, and a plurality of arrayed triangular blocks 803 are fixedly connected to the side wall of the rotating disk 802. When the hot water after heat exchange passes through the connecting pipe 109, it can enter the second fixed box 804 and impact the surface of the second rotating fan 806, causing the second rotating shaft 805 to rotate. When the second rotating shaft 805 rotates, it can drive the rotating disk 802 to rotate. When the triangular block 803 abuts against the upper end of the push rod 801, it can push the piston 606 to move downward.

[0047] A high-efficiency flame retardant production reactor includes a reactor body 1001, a stirring rod 1002, blades 1003, a discharge valve 1004, and the aforementioned reactor waste heat recovery device. Each blade 1003 has a heat exchange chamber 11. The top of the stirring rod 1002 has a third through hole 12. A first annular pipe 106 and a second annular pipe 114 are inserted into the third through hole 12, and an annular cover assembly is inserted at the bottom of the third through hole 12. The other end of a water inlet pipe 107 and a water outlet pipe 115 extend into the heat exchange chamber 11. A first fixed pipe 903 and a second fixed pipe 904 are also included. The tube 907 is fixedly inserted into the top of the vessel body 1001, and the first T-shaped guide rod 906 is inserted into the top of the vessel body 1001. The other end of the suction pipe 408 is fixedly inserted into the side wall of the vessel body 1001. The hollow ring 901 is set inside the vessel body 1001 and allows the hollow ring 901 to slide on the inner wall of the vessel body 1001. The top of the third through hole 12 is rotatably connected to the second disc 13, and the second disc 13 is fixedly sleeved on the side wall of the water supply pipe 104 and the water return pipe 108. The water supply pipe 104 and the water return pipe 108 are inserted into the third through hole 12, and the fixing bracket 102 is fixed to the side wall of the vessel body 1001.

[0048] Working principle: During use, when it is necessary to recover residual heat from the high-efficiency flame retardant liquid, the solenoid valve 103 is opened, and the water pump 110 is started to pump the liquid. At this time, the cooling water in the heat preservation box 101 enters the first annular pipe 106 through the water supply pipe 104 and the first connecting pipe 105, and the water inlet pipe 107 enters the heat exchange chamber 11. Thus, heat exchange can be carried out between the blades 1003 and the high-efficiency flame retardant liquid, and the residual heat in the liquid is recovered. The hot water that has absorbed the heat will enter the return water through the water outlet pipe 115, the second annular pipe 114 and the second connecting pipe 113. The water enters the insulation box 101 through the water pump 110 and the connecting pipe 109. The cold water in the water supply pipe 104 can enter the inner ring 116, the middle ring 120 and the outer ring 117 through the third connecting pipe 123, and return to the return water pipe 108 through the fourth connecting pipe 124. When draining, the first electromagnet 206 is de-energized. At this time, the connecting plate 202 can move downward under the action of the first spring 205. At the same time, it drives the annular cover assembly to move downward and abut against the bottom of the vessel body 1001. The inner ring 116 lifts the inlet cover of the discharge valve 1004.

[0049] Next, the discharge valve 1004 is opened. At this time, the high-efficiency flame retardant can enter the space between the outer ring 117 and the middle ring 120 through the first flow pipe 119. Then, it enters the space between the inner ring 116 and the middle ring 120 through the second flow pipe 127. Finally, it enters the inner ring 116 through the third flow pipe 118 and is discharged through the discharge valve 1004. Thus, it can undergo multiple heat exchanges before discharge, and the heat exchange path of the high-efficiency flame retardant can be improved. When the hot water after heat exchange is discharged through the fourth connecting pipe 124, it can enter the first fixed box 305 and impact the side wall of the first rotating fan 307, causing the first rotating shaft 308 and the rubber wheel 309 to rotate, thereby driving the middle ring 120 and the baffle 122 to rotate, which can agitate the high-efficiency flame retardant liquid, making the heat exchange efficiency better, thereby improving the efficiency and effect of waste heat recovery.

[0050] During waste heat recovery, cooling water can enter the hollow ring 901 through the first fixed pipe 903 and the first flexible hose 904, and return to the connecting pipe 109 through the second flexible hose 905 and the second fixed pipe 907. At the same time, as the high-efficiency flame retardant in the vessel 1001 is gradually discharged, the floating ring 902 can gradually move downward as the liquid level drops, and drive the hollow ring 901 to slide downward along the inner wall of the vessel 1001. The cooling water in the hollow ring 901 can exchange heat with the heat of the inner wall of the vessel 1001, thereby facilitating the recovery of waste heat from the inner wall of the vessel 1001 and ensuring the efficiency and effectiveness of waste heat recovery.

[0051] Furthermore, during waste heat recovery, the second electromagnet 507 is energized. When energized, the second electromagnet 507 attracts the iron block 506, causing the connecting block 501 to move closer to the fixed plate 502. Simultaneously, the second spring 505 is compressed, which in turn moves the moving plate 403, causing the second through hole 404 to be misaligned with the first through hole 402. At this time, the moving plate 403 can seal the partition 401, ensuring that the cooling water in the insulation box 101 is located in the upper chamber 405 and the lower chamber 406 respectively, preventing mutual interference. When the hot water after heat exchange flows through the connecting pipe... At time 109, it can enter the second fixed box 804 and impact the surface of the second rotating fan 806, causing the second rotating shaft 805 to rotate. When the second rotating shaft 805 rotates, it can drive the rotating disk 802 to rotate. When the triangular block 803 abuts against the upper end of the push rod 801, it can push the piston 606 to move downward. At the same time, the third spring 705 is compressed. When the triangular block 803 passes the upper end of the push rod 801, the piston 606 can move upward and reset under the action of the third spring 705. By repeating this process, the piston 606 can move up and down in the working tube 605.

[0052] When piston 606 moves upward, it creates a negative pressure in the first support tube 601. Simultaneously, the first one-way valve 603 opens and the second one-way valve 604 closes. This allows hot gas to be extracted from the vessel body 1001 and enter the bent pipe 407 through the extraction pipe 408 to exchange heat with the cooling water in the upper chamber 405. The heat-exchanged gas then enters the first support tube 601 through the exhaust pipe 409. When piston 606 moves downward, it compresses the gas in the first support tube 601. Simultaneously, the first one-way valve 603 closes and the second one-way valve 604 opens. This allows the gas in the first support tube 601 to be discharged through the second support tube 602 for processing, facilitating the recovery of residual heat from the gas inside the vessel body 1001 and ensuring the efficiency and effectiveness of residual heat recovery. Furthermore, during the next reaction, the second electromagnet 507 is de-energized. The movable plate 403 can move and reset under the action of the second spring 505, so that the second through hole 404 coincides with the first through hole 402. At this time, the hot water in the upper chamber 405 and the lower chamber 406 mix. Similarly, hot water can be supplied into the heat exchange chamber 11, the annular cover group and the hollow ring 901 to exchange heat with the material and the inner wall of the vessel 1001, thereby achieving a preheating effect, improving the efficiency and effect of the reaction, and reusing the waste heat, which is more energy-saving and environmentally friendly. The preheated water enters the heat preservation box 101 through the connecting pipe 109. At the same time, the heat exchanger 125 can be opened to cool the preheated water again. A temperature sensor can be installed on the side wall of the connecting pipe 109 to detect the temperature of the preheated water. When the temperature is high, the heat exchanger 125 is opened for cooling. Furthermore, the air in the vessel 1001 can be discharged through the exhaust pipe 408.

Claims

1. A waste heat recovery device for a reaction vessel, comprising an insulation box (101), characterized in that: A fixing bracket (102) is fixedly connected to the side wall of the insulated box (101), and a solenoid valve (103) is fixedly connected to the bottom of the insulated box (101). A water supply pipe (104) is fixedly connected to the bottom of the solenoid valve (103), and a first connecting pipe (105) is fixedly connected to the side wall of the water supply pipe (104). A first annular pipe (106) is fixedly connected to the other end of the first connecting pipe (105). A first circular ring (128) is rotatably connected to the side wall of the first annular pipe (106), and a plurality of arrayed water inlet pipes (107) are fixedly connected to the side wall of the first circular ring (128). A connecting pipe (109) is fixedly connected to the side wall of the insulated box (101), and the connecting pipe (109)... A heat exchanger (125) is provided on the side wall. A water pump (110) is fixedly connected to the lower end of the connecting pipe (109), and a return water pipe (108) is fixedly connected to the lower end of the water pump (110). A second connecting pipe (113) is fixedly connected to the side wall of the return water pipe (108), and a second annular pipe (114) is fixedly connected to the other end of the second connecting pipe (113). A second ring (129) is rotatably connected to the side wall of the second annular pipe (114), and multiple arrayed water outlet pipes (115) are fixedly connected to the side wall of the second ring (129). An annular cover assembly is connected to the lower part of the second annular pipe (114) through a lifting mechanism, and the annular cover assembly includes an inner ring (116), an outer ring (117), and a middle ring (118). The water supply pipe (104) is fixedly connected to a plurality of third connecting pipes (123) on its side wall, and the third connecting pipes (123) are inserted into the annular cover assembly. The water return pipe (108) is fixedly connected to a plurality of fourth connecting pipes (124) on its side wall, and the fourth connecting pipes (124) are inserted into the annular cover assembly. The lower end of the water return pipe (108) is fixedly connected to a first disc (112) via a first connecting rod (111), and the first disc (112) is inserted into the inner ring (116). The water return pipe (108) is fixedly connected to an L-shaped frame (126) on its side wall, and the bottom of the L-shaped frame (126) is rotatably connected to a first rotating ring (121). The middle ring (120) is fixedly inserted into the side wall of the middle ring (120). The device is provided with multiple arrayed baffles (122), and the middle ring (120) and baffles (122) pass through the first rotating ring (121). Multiple arrayed first flow pipes (119) are fixedly inserted into the side wall of the outer ring (117), and multiple arrayed second flow pipes (127) are fixedly inserted into the side wall of the middle ring (120). Multiple arrayed third flow pipes (118) are fixedly inserted into the side wall of the inner ring (116). The rotation of the middle ring (120) is driven by a driving mechanism. A first recovery mechanism for recovering waste heat is provided below the heat preservation box (101), and a second recovery mechanism for recovering waste heat in the gas is provided inside the heat preservation box (101).

2. The waste heat recovery device for a reaction vessel according to claim 1, characterized in that: The first recycling mechanism includes a hollow ring (901), and a float ring (902) is fixedly connected to the bottom of the hollow ring (901). The side wall of the water supply pipe (104) is fixedly connected to an L-shaped first fixed pipe (903), and a first flexible hose (904) is fixedly connected between the hollow ring (901) and the first fixed pipe (903). The side wall of the return water pipe (108) is fixedly connected to an L-shaped second fixed pipe (907), and a second flexible hose (905) is fixedly connected between the hollow ring (901) and the second fixed pipe (907). The top of the hollow ring (901) is fixedly connected to two symmetrically arranged first T-shaped guide rods (906).

3. The waste heat recovery device for a reaction vessel according to claim 1, characterized in that: The second recycling mechanism includes a partition (401) fixedly connected to the heat preservation box (101), and the partition (401) divides the heat preservation box (101) into an upper chamber (405) and a lower chamber (406). The upper end of the connecting pipe (109) is connected to the lower chamber (406), and the top of the partition (401) is provided with a plurality of arrayed first through holes (402). The bottom of the partition (401) is slidably connected to a moving plate (403) through a moving mechanism, and the bottom of the moving plate (403) is provided with a plurality of arrayed second through holes (404). The upper chamber (405) is provided with a bent pipe (407), and one end of the bent pipe (407) is connected to a suction pipe (408). The other end of the bent pipe (407) is connected to an exhaust pipe (409), and the end of the exhaust pipe (409) is provided with a suction mechanism.

4. The waste heat recovery device for a reaction vessel according to claim 1, characterized in that: The lifting mechanism includes an iron plate (201) fixedly connected to the side wall of the return water pipe (108), and two symmetrically arranged first sleeves (204) are fixedly connected to the bottom of the iron plate (201). A first sleeve rod (203) is inserted into the first sleeve (204), and a connecting plate (202) is fixedly connected to the bottom of the first sleeve rod (203). A first electromagnet (206) is fixedly connected to the top of the connecting plate (202), and a first spring (205) is sleeved in each first sleeve (204). The inner ring (116) and the outer ring (117) are fixed to the bottom of the connecting plate (202).

5. The waste heat recovery device for a reaction vessel according to claim 4, characterized in that: The rotating mechanism includes a guide block (301) fixedly connected to the bottom of the connecting plate (202), and an annular guide rail (302) is slidably connected to the side wall of the guide block (301). The annular guide rail (302) is fixedly sleeved on the side wall of the middle ring (120), and an annular groove (303) is opened at the top of the middle ring (120). A second rotating ring (304) is rotatably connected in the annular groove (303), and one of the fourth connecting pipes (124) is inserted into the side wall of the second rotating ring (304). A first fixed box (305) is fixedly inserted into the side wall of the fourth connecting pipe (124), and a first rotating fan (307) is rotatably connected in the first fixed box (305) through a first rotating shaft (308). A rubber wheel (309) is fixedly connected to one end of the first rotating shaft (308).

6. The waste heat recovery device for a reaction vessel according to claim 3, characterized in that: The moving mechanism includes a fixed plate (502) fixedly connected to the bottom of the partition (401), and two symmetrically arranged second sleeve rods (504) are fixedly connected to the side wall of the fixed plate (502). The side wall of the second sleeve rod (504) is fitted with a second sleeve (503), and the other end of the second sleeve (503) is fixedly connected with a connecting block (501). The connecting block (501) is fixed to the side wall of the moving plate (403), and the side wall of each second sleeve (503) is fitted with a second spring (505). The side wall of the fixed plate (502) is fixedly connected with a second electromagnet (507), and the side wall of the connecting block (501) is fixedly connected with an iron block (506).

7. The waste heat recovery device for a reaction vessel according to claim 3, characterized in that: The air extraction mechanism includes a first support pipe (601) fixedly connected to the end of the exhaust pipe (409), and a second support pipe (602) fixedly connected to the end of the first support pipe (601). A first one-way valve (603) is provided inside the exhaust pipe (409), and a second one-way valve (604) is provided inside the second support pipe (602). A working pipe (605) is fixedly connected to the side wall of the first support pipe (601), and a piston (606) is connected inside the working pipe (605) through a reset mechanism. The movement of the piston (606) is driven by a pushing mechanism.

8. The waste heat recovery device for a reaction vessel according to claim 7, characterized in that: The reset mechanism includes a second connecting rod (701) fixedly connected to the top of the piston (606), and a moving block (702) fixedly connected to the top of the second connecting rod (701). Two symmetrically arranged second T-shaped guide rods (703) are inserted into the top of the moving block (702), and the lower end of the second T-shaped guide rod (703) is fixed to the side wall of the first support tube (601). A retaining ring (704) is fixedly sleeved on the side wall of each second T-shaped guide rod (703), and a third spring (705) is sleeved on the side wall of each second T-shaped guide rod (703).

9. A waste heat recovery device for a reaction vessel according to claim 8, characterized in that: The pushing mechanism includes a pushing rod (801) fixedly connected to the top of the moving block (702), and a second fixed box (804) is fixedly inserted into the side wall of the connecting pipe (109). A second rotating fan (806) is rotatably connected inside the second fixed box (804) via a second rotating shaft (805). A rotating disk (802) is fixedly connected to one end of the second rotating shaft (805), and a plurality of arrayed triangular blocks (803) are fixedly connected to the side wall of the rotating disk (802).

10. A reaction vessel for producing a high-efficiency flame retardant, characterized in that: The reactor includes a vessel body (1001), a stirring rod (1002), blades (1003), a discharge valve (1004), and a waste heat recovery device for a reactor as described in any one of claims 1-9. Each blade (1003) has a heat exchange chamber (11), and the top of the stirring rod (1002) has a third through hole (12). The first annular pipe (106) and the second annular pipe (114) are inserted into the third through hole (12), and an annular cover assembly is inserted into the bottom of the third through hole (12). The other end of the water inlet pipe (107) extends into the heat exchange chamber (11), and the other end of the water outlet pipe (115) extends into the heat exchange chamber (11). The first fixed pipe (903) and the second fixed pipe (907) are also included. The first T-shaped guide rod (906) is fixedly inserted at the top of the vessel body (1001), and the other end of the suction pipe (408) is fixedly inserted at the side wall of the vessel body (1001). The hollow ring (901) is set inside the vessel body (1001) and allows the hollow ring (901) to slide on the inner wall of the vessel body (1001). The top of the third through hole (12) is rotatably connected to the second disc (13), and the second disc (13) is fixedly sleeved on the side wall of the water supply pipe (104) and the return water pipe (108). The water supply pipe (104) and the return water pipe (108) are inserted into the third through hole (12), and the fixing bracket (102) is fixed to the side wall of the vessel body (1001).

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