Chemical production flue gas waste heat recycling equipment

Abstract

The application relates to the technical field of waste heat recovery, and discloses a flue gas waste heat recovery and utilization equipment for chemical production, which comprises a bottom plate and a cylinder, one side of the cylinder is fixedly connected with a left cylinder body, and the other side of the cylinder is fixedly connected with a right cylinder body; the inside of the cylinder is provided with a heat exchange assembly; a horizontal pipe is fixedly installed in the middle of the inside of the cylinder; the heat exchange assembly comprises a fixed disc which is slidingly installed outside the horizontal pipe; an auxiliary assembly is arranged on the outer ring of the fixed disc; a servo motor is fixedly installed outside the right cylinder body; the output end of the servo motor is fixedly connected with a screw rod part; and the outer ring of the fixed disc is rotationally connected with an outer ring body. The problems that when the flue gas inlet pressure is too high, the service life of the equipment is shortened, when the flue gas pressure is too low, the air intake amount is reduced, the heat exchange coefficient is reduced, and the subsequent heat efficiency is affected, and the efficient recovery and treatment of waste heat are inconvenient are solved.

Description

Technical Field

[0001] This invention relates to the field of waste heat recovery technology, specifically to a waste heat recovery and utilization device for flue gas used in chemical production. Background Technology

[0002] Waste heat is energy that is not utilized in energy utilization equipment under certain economic and technological conditions. It is excess and waste energy. Currently, flue gas is generated during industrial processing, and the flue gas contains a large amount of waste heat. In order to reduce industrial production costs, waste heat recovery equipment is needed to recover the waste heat.

[0003] For example, a flue gas waste heat recovery and utilization device and a base fabric treatment device, as disclosed in announcement number CN216523243U, includes a flue pipe with a cavity structure extending through both ends, through which flue gas flows; a water pipe attached to the side wall of the flue pipe; and an insulation shell fixedly fitted onto the flue pipe with its inner wall attached to the water pipe. Both ends of the water pipe extend to the outside of the insulation shell. The base fabric treatment device includes the aforementioned flue gas waste heat recovery and utilization device, with its two ends connected to a steam boiler and a dust removal device, respectively. It also includes a desizing device, an impregnation device, a first drying device, a scraping device, and a second drying device arranged sequentially. The hot water generated by the flue gas waste heat recovery and utilization device is transported to the desizing device.

[0004] However, the recovery of waste heat from flue gas requires a focus on heat exchange efficiency, equipment maintenance, and operational safety. The flue gas inlet temperature and pressure need to be set reasonably according to the actual working conditions. When the flue gas inlet pressure is too high, it may shorten the equipment life. When the flue gas pressure is too low, the intake volume is reduced, which leads to a decrease in the heat exchange coefficient, thereby affecting the subsequent heat exchange efficiency and making it difficult to carry out efficient waste heat recovery. This invention is applicable to the transportation of flue gas in heat exchange tubes and the heating of external water bodies, and belongs to tubular flue gas heat exchangers.

[0005] Therefore, a waste heat recovery and utilization device for flue gas in chemical production is proposed to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a waste heat recovery and utilization device for flue gas in chemical production, so as to solve the problems that when the flue gas inlet pressure is too high, it may shorten the equipment life and when the flue gas pressure is too low, the intake volume is reduced, resulting in a decrease in the heat exchange coefficient, thereby affecting the subsequent heat exchange efficiency and making it difficult to carry out efficient waste heat recovery and treatment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a waste heat recovery and utilization device for flue gas in chemical production, comprising a base plate and a cylinder, wherein a left cylinder body is fixedly connected to one side of the cylinder and a right cylinder body is fixedly connected to the other side of the cylinder; Also includes: The cylinder is equipped with a heat exchange assembly inside, and a horizontal tube is fixedly installed in the middle of the cylinder. The heat exchange assembly includes a fixed plate that is slidably installed on the outside of the horizontal tube, and an auxiliary assembly is provided on the outer ring of the fixed plate. A servo motor is fixedly installed on the outside of the right cylinder, and a lead screw is fixedly connected to the output end of the servo motor. An outer ring body is rotatably connected to the outer ring body. A fan blade is fixedly connected to the side of the outer ring body near the left cylinder. An annular cylinder is rotatably installed inside the cylinder, and the annular cylinder is fixedly installed with the lead screw. A fixed ring is rotatably installed inside the left cylinder. The inner wall of the fixed ring is symmetrically provided with sliding grooves. A sliding rod is slidably connected inside the sliding groove. A guide plate is fixedly connected to the outer end of the sliding rod. A spring is sleeved on the outside of the sliding rod. A crossbar is fixedly connected to one side of the guide plate. A locking block is fixedly connected to the outside of the crossbar.

[0008] Preferably, the inner wall of the annular cylinder is provided with slots, the inner surface of the outer ring is provided with symmetrical outer grooves, a vertical rod is fixedly connected to the inner surface of the outer groove, the horizontal rod is slidably connected to the vertical rod, a side plate is fixedly connected to the outer surface of the right cylinder, and the servo motor is fixedly installed on the outer surface of the side plate.

[0009] By adopting the above technical solution and setting up heat exchange components, when the flue gas pressure entering through the inlet pipe is high, the outer ring of the outer body is equipped with a cleaning cloth layer, which makes the cleaning cloth layer easy to move and rotate for scraping, cleaning the outer side of the horizontal pipe and the inner wall of the annular cylinder. Furthermore, the rotation of the outer ring body drives the fan blades to rotate, which can slowly blow the flue gas in the opposite direction, thereby prolonging the contact time between the flue gas and the horizontal pipe and the annular cylinder, and improving the heat exchange effect.

[0010] Preferably, the lead screw is rotatably connected to the right cylinder, the fixed plate is threadedly connected to the lead screw, two rotating rings are symmetrically rotatably connected to the outer side of the cylinder, and a water inlet pipe is fixedly installed on the top of the annular cylinder through one of the rotating rings.

[0011] By adopting the above technical solution, the lead screw drives the annular cylinder to rotate through the fixed ring and the sliding groove, and the annular cylinder drives the rotating ring to rotate, thus maintaining the stable rotation of the annular cylinder.

[0012] Preferably, a drain pipe is fixedly installed at the bottom of the annular cylinder through the rotating ring on the other side. The annular cylinder is fixedly connected to the lead screw via a fixing rod. One end of the spring is fixedly connected to the inner wall of the fixing ring, and the other end of the spring is fixedly connected to the guide inclined plate.

[0013] By adopting the above technical solution, the flue gas will squeeze the guide plate, the guide plate will drive the slide rod to slide into the slide groove, and the guide plate will compress the spring.

[0014] Preferably, the card block engages with the card slot, the inside of the card block is provided with a strip groove, the crossbar is slidably connected to the outer groove, the vertical bar is slidably connected to the strip groove, there are no fewer than four fan blades, and there are no fewer than two crossbars.

[0015] By adopting the above technical solution, the guide plate drives the horizontal bar and the locking block to move. The horizontal bar slides on the outside of the vertical bar, so that the locking block is locked in the slot. At this time, the annular cylinder rotates, which also drives the locking block and the horizontal bar to rotate.

[0016] Preferably, the number of outer grooves is the same as that of the fan blades, and the outer side of the fixing plate is provided with connecting holes, which are circumferentially formed, and there are no fewer than four connecting holes.

[0017] By adopting the above technical solution, the crossbar can slide inside the connecting hole without affecting the synchronous rotation of the crossbar and the outer ring body.

[0018] Preferably, the auxiliary component includes symmetrically formed through grooves inside the outer ring body, a filter screen is fixedly installed inside the through groove on the side near the left cylinder, and a guide cylinder is fixedly connected in the middle of the through groove.

[0019] By adopting the above technical solution, when the flue gas enters the channel, it is first filtered by the filter screen and then guided by the guide cylinder.

[0020] Preferably, a nozzle is fixedly installed on the side of the outer ring body near the right cylinder body. The number of nozzles is the same as the number of through slots, and each nozzle is connected to a single through slot at a corresponding position.

[0021] By adopting the above technical solution, the flue gas is then ejected from the nozzle, causing the flue gas to be blown onto the inner wall of the annular cylinder, thereby facilitating the auxiliary flue gas to exchange heat with the annular cylinder again.

[0022] Preferably, the bottom of the cylinder, the left cylinder, and the side plate are all fixedly mounted with a fixed bracket. An air inlet pipe is fixedly mounted on the middle of the outer side of the left cylinder. The bottom of the fixed bracket is fixedly connected to the base plate. A ring of horizontal pipes is arranged, and there are no fewer than four horizontal pipes. A water inlet pipe is fixedly mounted on the top of the left cylinder. A water outlet pipe is fixedly mounted on the bottom of the left cylinder. The same mounting plate is fixedly mounted on one side of the multiple horizontal pipes. The water inlet pipe is connected to the horizontal pipe through the mounting plate. The mounting plate is connected to the water outlet pipe. An exhaust pipe is fixedly mounted on the outer side of the right cylinder.

[0023] By adopting the above technical solution, it is convenient to add water to the inside of the annular cylinder and the horizontal pipe, thereby using the heat of the flue gas to heat the water.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting up a heat exchange component, when the flue gas pressure entering the inlet pipe is high, the flue gas will squeeze the guide plate, the locking block will be locked into the slot, and the horizontal bar will also drive the vertical bar and the outer ring body to rotate. The outer ring body is provided with a cleaning cloth layer, which makes the cleaning cloth layer easy to move and rotate for scraping, thereby cleaning the outer side of the horizontal pipe and the inner wall of the annular cylinder. Moreover, the rotation of the outer ring body drives the fan blades to rotate, which can slowly blow the flue gas in the opposite direction, thereby prolonging the contact time between the flue gas and the horizontal pipe and the annular cylinder, and improving the heat exchange effect. The specific details are as follows: By setting up a heat exchange assembly, when the flue gas pressure entering through the inlet pipe is low, the operator starts the servo motor. The servo motor drives the lead screw to rotate, and the horizontal tube limits the fixed plate, causing the fixed plate to move linearly left and right. The lead screw drives the annular cylinder to rotate through the fixed ring and the sliding groove. The annular cylinder drives the rotating ring to rotate, and the fixed plate drives the outer ring to move linearly. The fixed plate scrapes and cleans the outside of the horizontal tube. The flue gas enters the cylinder and contacts the annular cylinder and the horizontal tube, thereby heating the water inside the annular cylinder and the horizontal tube. The heat-exchanged flue gas then enters the right cylinder through the connecting hole and is discharged from the exhaust pipe. When the flue gas pressure entering through the inlet pipe is high, the flue gas will squeeze the guide plate. The guide plate drives the sliding rod to slide into the sliding groove. The guide plate compresses the spring, and the guide plate drives the horizontal rod and the locking block to move. The horizontal rod slides outside the vertical rod, causing the locking block to engage. In the slot, inclined guides can be set between adjacent slots to keep the card block quickly locked into the slot. At this time, the rotation of the annular cylinder will also drive the card block and the horizontal bar to rotate. The horizontal bar will drive the guide inclined plate and the fixed ring to rotate. The horizontal bar will also drive the vertical bar and the outer ring body to rotate. The outer ring body is equipped with a cleaning cloth layer, which makes the cleaning cloth layer easy to move and rotate to scrape, thereby cleaning the outer side of the horizontal tube and the inner wall of the annular cylinder, reducing the adhesion of dust and impurities. The rotation of the outer ring body will drive the fan blade to rotate. The rotation of the fan blade will slowly blow the flue gas in the opposite direction, thereby prolonging the contact time between the flue gas and the horizontal tube and the annular cylinder, improving the heat exchange effect. This solves the problem that when the flue gas inlet pressure is too high, it may shorten the equipment life. When the flue gas pressure is too low, the air intake will be reduced, resulting in a decrease in the heat exchange coefficient, which will affect the subsequent heat exchange efficiency and make it difficult to carry out efficient waste heat recovery treatment. By setting auxiliary components, when the flue gas enters the channel, it is first filtered by the filter screen and guided by the guide cylinder. The flue gas is then sprayed out by the nozzle, so that the flue gas is blown onto the inner wall of the annular cylinder. This facilitates the auxiliary flue gas to exchange heat with the annular cylinder again, thereby further improving the heat exchange effect, making full use of the heat in the flue gas, and improving the use effect of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the first three-dimensional overall structure of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional overall structure of the present invention; Figure 3 This is a schematic diagram of the cylindrical cross-sectional structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic cross-sectional view of the annular cylinder structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the fixed disk structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C; Figure 9 This is a schematic diagram of the crossbar structure of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point D; Figure 11 This is a schematic diagram of the drainage pipe structure of the present invention; Figure 12 This is a schematic diagram of the fan blade structure of the present invention; Figure 13 This is a schematic cross-sectional view of the outer ring structure of the present invention; Figure 14 For the present invention Figure 13 Enlarged structural diagram at point E in the middle.

[0026] In the diagram: 1. Base plate; 2. Cylinder; 3. Left cylinder; 4. Right cylinder; 5. Fixed bracket; 6. Air inlet pipe; 7. Heat exchange assembly; 71. Side plate; 72. Servo motor; 73. Lead screw; 74. Fixed plate; 75. Outer ring; 76. Fan blade; 77. Rotating ring; 78. Water inlet pipe; 79. Drain pipe; 710. Annular cylinder; 711. Fixed ring; 712. Slide groove; 713. 714. Slide rod; 715. Guide ramp; 716. Spring; 717. Crossbar; 718. Locking block; 719. Locking groove; 720. Strip groove; 721. Outer groove; 722. Vertical rod; 723. Connecting hole; 8. Horizontal tube; 9. Auxiliary component; 91. Through groove; 92. Filter screen section; 93. Guide cylinder; 94. Nozzle; 10. Water inlet pipe; 11. Mounting plate; 12. Water outlet pipe; 13. Exhaust pipe. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1 - Figure 3 The present invention provides a technical solution: a waste heat recovery and utilization device for flue gas in chemical production, including a base plate 1 and a cylinder 2, a left cylinder 3 fixedly connected to one side of the cylinder 2, and a right cylinder 4 fixedly connected to the other side of the cylinder 2.

[0029] The cylinder 2 is equipped with a heat exchange assembly 7. A horizontal tube 8 is fixedly installed in the middle of the cylinder 2. The heat exchange assembly 7 includes a fixed plate 74 that is slidably installed on the outside of the horizontal tube 8.

[0030] A servo motor 72 is fixedly installed on the outside of the right cylinder 4. A lead screw 73 is fixedly connected to the output end of the servo motor 72. An outer ring body 75 is rotatably connected to the outer ring of the fixed disk 74. A fan blade 76 is fixedly connected to the side of the outer ring body 75 near the left cylinder 3. An annular cylinder 710 is rotatably installed inside the cylinder 2. The annular cylinder 710 is fixedly installed with the lead screw 73.

[0031] The lead screw 73 is rotatably connected to the right cylinder 4, the fixed plate 74 is threadedly connected to the lead screw 73, and two rotating rings 77 are symmetrically rotatably connected to the outer side of the cylinder 2. The top of the annular cylinder 710 is fixedly installed with a water inlet pipe 78 through one of the rotating rings 77.

[0032] A fixing ring 711 is rotatably installed inside the left cylinder 3. The inner wall of the fixing ring 711 is symmetrically provided with sliding grooves 712. A sliding rod 713 is slidably connected inside the sliding groove 712. A guide plate 714 is fixedly connected to the outer end of the sliding rod 713. A spring 715 is sleeved on the outside of the sliding rod 713. A crossbar 716 is fixedly connected to one side of the guide plate 714. A locking block 717 is fixedly connected to the outside of the crossbar 716.

[0033] The bottom of the annular cylinder 710 is fixedly installed with a drain pipe 79 through the rotating ring 77 on the other side. The annular cylinder 710 is fixedly connected to the screw part 73 through a fixed rod. One end of the spring 715 is fixedly connected to the inner wall of the fixed ring 711, and the other end of the spring 715 is fixedly connected to the guide inclined plate 714.

[0034] The inner wall of the annular cylinder 710 is arrayed with slots 718, and the inner wall of the outer ring body 75 is symmetrically provided with outer grooves 720. A vertical rod 721 is fixedly connected inside the outer groove 720, and a horizontal rod 716 is slidably connected to the vertical rod 721. A side plate 71 is fixedly connected to the outer side of the right cylinder 4, and a servo motor 72 is fixedly installed on the outer side of the side plate 71.

[0035] The locking block 717 engages with the locking slot 718. The locking block 717 also has a strip groove 719 inside. The horizontal bar 716 is slidably connected to the outer groove 720, and the vertical bar 721 is slidably connected to the strip groove 719. There are no fewer than four fan blades 76 and no fewer than two horizontal bars 716.

[0036] The number of outer grooves 720 is the same as that of the fan blades 76. A connecting hole 722 is provided on the outer side of the fixed plate 74. The connecting hole 722 is circumferentially opened and there are no fewer than four connecting holes 722.

[0037] The bottom of the cylinder 2, the left cylinder 3, and the side plate 71 are all fixedly installed with a fixed bracket 5. An air inlet pipe 6 is fixedly installed in the middle of the outer side of the left cylinder 3. The bottom of the fixed bracket 5 is fixedly connected to the base plate 1. A ring of horizontal pipes 8 is arranged, with no less than four horizontal pipes 8. A water inlet pipe 10 is fixedly installed on the top of the left cylinder 3. A water outlet pipe 12 is fixedly installed on the bottom of the left cylinder 3. The same mounting plate 11 is fixedly installed on one side of the multiple horizontal pipes 8. The water inlet pipe 10 is connected to the horizontal pipe 8 through the mounting plate 11. The mounting plate 11 is connected to the water outlet pipe 12. An exhaust pipe 13 is fixedly installed on the outer side of the right cylinder 4.

[0038] Example 1: As Figure 4 - Figure 11 As shown, when the flue gas pressure entering through the intake pipe 6 is low, the operator starts the servo motor 72. The servo motor 72 drives the lead screw 73 to rotate, and the horizontal pipe 8 limits the fixed plate 74, causing the fixed plate 74 to move linearly left and right. The lead screw 73 drives the annular cylinder 710 to rotate through the fixed ring 711 and the sliding groove 712. The annular cylinder 710 drives the rotating ring 77 to rotate, and the fixed plate 74 drives the outer ring body 75 to move linearly. The fixed plate 74 scrapes and cleans the outside of the horizontal pipe 8.

[0039] Flue gas enters the cylinder 2 and contacts the annular cylinder 710 and the horizontal pipe 8, thereby heating the water inside the annular cylinder 710 and the horizontal pipe 8. After heat exchange, the flue gas enters the right cylinder 4 through the connecting hole 722 and is discharged from the exhaust pipe 13. When the flue gas pressure entering the intake pipe 6 is high, the flue gas will squeeze the guide plate 714. The guide plate 714 drives the slide rod 713 to slide into the slide groove 712. The guide plate 714 compresses the spring 715. The guide plate 714 drives the horizontal rod 716 and the locking block 717 to move. The horizontal rod 716 slides on the outside of the vertical rod 721, so that the locking block 717 is locked into the locking groove 718. An inclined guide can be set between adjacent locking grooves 718 to keep the locking block 717 locked into the locking groove 718 quickly.

[0040] At this time, the rotation of the annular cylinder 710 will also drive the locking block 717 and the crossbar 716 to rotate. The crossbar 716 will drive the guide inclined plate 714 and the fixing ring 711 to rotate. The crossbar 716 will also drive the vertical bar 721 and the outer ring body 75 to rotate. The outer ring body 75 is provided with a cleaning cloth layer, which makes the cleaning cloth layer easy to move and rotate for scraping, thereby cleaning the outer side of the horizontal tube 8 and the inner wall of the annular cylinder 710, reducing the adhesion of dust and impurities. The rotation of the outer ring body 75 will drive the fan blade 76 to rotate. The rotation of the fan blade 76 will slowly blow the flue gas in the opposite direction, thereby prolonging the contact time between the flue gas and the horizontal tube 8 and the annular cylinder 710, and improving the heat exchange effect.

[0041] The outer ring of the fixed plate 74 is provided with an auxiliary component 9. The auxiliary component 9 includes through grooves 91 symmetrically opened inside the outer ring body 75. A filter screen part 92 is fixedly installed inside the through groove 91 on the side near the left cylinder 3. A guide cylinder 93 is fixedly connected in the middle of the through groove 91.

[0042] A nozzle 94 is fixedly installed on the side of the outer ring body 75 near the right cylinder body 4. The number of nozzles 94 is the same as the number of through slots 91, and each nozzle 94 is connected to a single through slot 91 at a corresponding position.

[0043] Example 2: Figure 12 - Figure 14 As shown, when the flue gas enters the channel 91, it is first filtered by the filter screen 92 and guided by the guide cylinder 93. The flue gas is then sprayed out by the nozzle 94, so that the flue gas is blown onto the inner wall of the annular cylinder 710, which facilitates the auxiliary flue gas to exchange heat with the annular cylinder 710 again, thereby further improving the heat exchange effect.

[0044] Working principle: When using this device, firstly, as... Figure 1 - Figure 14As shown, when the flue gas pressure entering through the intake pipe 6 is low, the operator starts the servo motor 72. The servo motor 72 drives the lead screw 73 to rotate, and the fixed plate 74 moves linearly left and right. The lead screw 73 drives the annular cylinder 710 to rotate, and the annular cylinder 710 drives the rotating ring 77 to rotate. The fixed plate 74 drives the outer ring body 75 to move linearly. The fixed plate 74 scrapes and cleans the outside of the horizontal pipe 8. The flue gas comes into contact with the annular cylinder 710 and the horizontal pipe 8, thereby cleaning the inside of the annular cylinder 710 and the horizontal pipe 8. The water is heated, and the flue gas after heat exchange enters the right cylinder 4 through the connecting hole 722 and is discharged from the exhaust pipe 13. When the flue gas pressure entering through the intake pipe 6 is high, the flue gas will squeeze the guide plate 714. The guide plate 714 drives the slide rod 713 to slide into the slide groove 712. The guide plate 714 compresses the spring 715. The guide plate 714 drives the horizontal bar 716 and the locking block 717 to move. The horizontal bar 716 slides on the outside of the vertical bar 721, so that the locking block 717 is locked into the locking groove 718. An inclined guide can be provided between adjacent slots 718 to ensure that the locking block 717 quickly engages in the slot 718. At this time, the rotation of the annular cylinder 710 will also drive the locking block 717 and the horizontal bar 716 to rotate. The horizontal bar 716 will drive the guide inclined plate 714 and the fixing ring 711 to rotate, and the horizontal bar 716 will also drive the vertical bar 721 and the outer ring body 75 to rotate. The outer ring body 75 is provided with a cleaning cloth layer, which makes the cleaning cloth layer easy to move and rotate for scraping, thereby cleaning the outer side of the horizontal tube 8 and the annular cylinder 710. The inner wall cleaning reduces the adhesion of dust and impurities. The rotation of the outer ring body 75 drives the fan blade 76 to rotate. The rotation of the fan blade 76 slowly blows the flue gas in the opposite direction, thereby prolonging the contact time between the flue gas and the horizontal pipe 8 and the annular cylinder 710. When the flue gas enters the through groove 91, it is first filtered by the filter screen 92 and guided by the guide cylinder 93. The flue gas is then sprayed out by the nozzle 94, so that the flue gas is blown onto the inner wall of the annular cylinder 710, which facilitates the auxiliary flue gas to exchange heat with the annular cylinder 710 again.

[0045] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0046] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A waste heat recovery and utilization device for flue gas in chemical production, comprising a base plate (1) and a cylinder (2), wherein a left cylinder body (3) is fixedly connected to one side of the cylinder (2) and a right cylinder body (4) is fixedly connected to the other side of the cylinder (2). Its features are, Also includes: The cylinder (2) is provided with a heat exchange assembly (7) inside. A horizontal tube (8) is fixedly installed in the middle of the cylinder (2). The heat exchange assembly (7) includes a fixed plate (74) that is slidably installed on the outside of the horizontal tube (8). An auxiliary assembly (9) is provided on the outer ring of the fixed plate (74). A servo motor (72) is fixedly installed on the outside of the right cylinder (4). A lead screw (73) is fixedly connected to the output end of the servo motor (72). An outer ring body (75) is rotatably connected to the outer ring of the fixed disk (74). A fan blade (76) is fixedly connected to the side of the outer ring body (75) near the left cylinder (3). An annular cylinder (710) is rotatably installed inside the cylinder (2). The annular cylinder (710) is fixedly installed with the lead screw (73). The left cylinder (3) is rotatably mounted with a fixing ring (711). The inner wall of the fixing ring (711) is symmetrically provided with sliding grooves (712). The sliding groove (712) is slidably connected with a sliding rod (713). The outer end of the sliding rod (713) is fixedly connected with a guide plate (714). The outside of the sliding rod (713) is sleeved with a spring (715). One side of the guide plate (714) is fixedly connected with a crossbar (716). The outside of the crossbar (716) is fixedly connected with a locking block (717). The inner wall of the annular cylinder (710) is provided with slots (718), the outer ring body (75) is provided with symmetrical outer grooves (720), the inner wall of the outer groove (720) is fixedly connected with a vertical rod (721), the horizontal rod (716) is slidably connected with the vertical rod (721), the outer side of the right cylinder (4) is fixedly connected with a side plate (71), and the servo motor (72) is fixedly installed on the outer side of the side plate (71). When the flue gas pressure entering the intake pipe (6) is high, the flue gas will squeeze the guide plate (714). The guide plate (714) drives the slide rod (713) to slide into the slide groove (712). The guide plate (714) compresses the spring (715). The guide plate (714) drives the horizontal bar (716) and the locking block (717) to move. The horizontal bar (716) slides on the outside of the vertical bar (721), so that the locking block (717) is locked into the locking groove (718). An inclined guide can be set between adjacent locking grooves (718) to keep the locking block (717) locked into the locking groove (718) quickly.

2. The waste heat recovery and utilization equipment for flue gas in chemical production according to claim 1, characterized in that: The lead screw (73) is rotatably connected to the right cylinder (4), the fixed plate (74) is threadedly connected to the lead screw (73), and two rotating rings (77) are symmetrically rotatably connected to the outer side of the cylinder (2). The top of the annular cylinder (710) is fixedly installed with a water inlet pipe (78) through one of the rotating rings (77).

3. The waste heat recovery and utilization equipment for flue gas in chemical production according to claim 2, characterized in that: The bottom of the annular cylinder (710) is fixedly installed with a drain pipe (79) through the rotating ring (77) on the other side. The annular cylinder (710) is fixedly connected to the screw part (73) by a fixing rod. One end of the spring (715) is fixedly connected to the inner wall of the fixing ring (711), and the other end of the spring (715) is fixedly connected to the guide inclined plate (714).

4. The waste heat recovery and utilization equipment for chemical production flue gas according to claim 3, characterized in that: The card block (717) is engaged with the card slot (718), and the inside of the card block (717) is also provided with a strip groove (719). The horizontal bar (716) is slidably connected with the outer groove (720), and the vertical bar (721) is slidably connected with the strip groove (719). There are no fewer than four fan blades (76) and no fewer than two horizontal bars (716).

5. The waste heat recovery and utilization equipment for chemical production flue gas according to claim 4, characterized in that: The number of outer grooves (720) is the same as that of the fan blade (76). A connecting hole (722) is provided on the outer side of the fixed plate (74). The connecting hole (722) is circumferentially opened and there are no fewer than four connecting holes (722).

6. The waste heat recovery and utilization equipment for flue gas in chemical production according to claim 1, characterized in that: The auxiliary component (9) includes a through groove (91) symmetrically opened inside the outer ring body (75). A filter part (92) is fixedly installed inside the through groove (91) on the side near the left cylinder (3). A guide cylinder (93) is fixedly connected in the middle of the through groove (91).

7. The waste heat recovery and utilization equipment for flue gas in chemical production according to claim 6, characterized in that: The outer ring body (75) is fixedly installed with a nozzle (94) on the side near the right cylinder body (4). The number of nozzles (94) is the same as the number of through slots (91), and each nozzle (94) is connected to a single through slot (91) at a corresponding position.

8. The waste heat recovery and utilization equipment for flue gas in chemical production according to claim 1, characterized in that: The bottom of the cylinder (2), the left cylinder (3) and the side plate (71) are all fixedly installed with a fixed bracket (5). An air inlet pipe (6) is fixedly installed in the middle of the outer side of the left cylinder (3). The bottom of the fixed bracket (5) is fixedly connected to the base plate (1). The horizontal pipes (8) are arranged in an array in a circle. There are no less than four horizontal pipes (8). A water inlet pipe (10) is fixedly installed on the top of the left cylinder (3). A water outlet pipe (12) is fixedly installed on the bottom of the left cylinder (3). The same mounting plate (11) is fixedly installed on one side of multiple horizontal pipes (8). The water inlet pipe (10) is connected to the horizontal pipe (8) through the mounting plate (11). The mounting plate (11) is connected to the water outlet pipe (12). An exhaust pipe (13) is fixedly installed on the outer side of the right cylinder (4).

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