A heat exchanger for treating organic chemical waste gas and a method of using the same

Abstract

The present invention discloses a heat exchanger for treating organic chemical waste gas and a method for using the same, which relates to the field of heat exchangers and comprises a heat exchange shell, wherein a tube group is arranged inside the heat exchange shell, wherein the tube group penetrates the heat exchange shell and is fixedly connected to the heat exchange shell, wherein a group of butt joints are fixedly connected to both sides of the heat exchange shell, and the number of each group of butt joints is three, wherein four flow dismantling shells are arranged inside the heat exchange shell, wherein the four flow dismantling shells penetrate the heat exchange shell and are fixedly connected to the heat exchange shell. The heat exchanger for treating organic chemical waste gas and a method for using the same can effectively avoid the problem of a large amount of ice and water droplets remaining on the tube group and the flow dismantling shell, which leads to a reduction in the heat transfer efficiency of the heat exchanger, thereby enabling the device to have a good treatment state for the organic waste gas, and at the same time, the gas flow rate can be adjusted by adjusting the cross-sectional area of ​​the pressure rod.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, and in particular to a heat exchanger for treating organic chemical waste gas and a use method thereof. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is widely used in chemical, petroleum, power, food and other industrial production. Its main function is to transfer heat from one fluid to another through a heat transfer medium, thereby realizing the exchange of heat energy. When a large amount of organic waste gas with a high concentration is generated in a factory, the organic waste gas is generally condensed through a low-temperature heat exchanger. By cooling the waste gas to below the dew point of the organic matter, the organic matter is condensed into liquid and recovered, so that the organic chemical waste gas can be treated and effectively prevented from diffusing into the air and causing environmental pollution.

[0003] At present, low-temperature heat exchangers for treating organic waste gas generally use shell-and-tube heat exchangers, and use liquid ammonia and liquid oxygen and other substances with low boiling points and high cooling effects as heat exchange media, so that the heat exchange media circulates in the tubes, and the high-temperature organic chemical waste gas circulates in the heat exchanger. When the waste gas contacts the tubes, the waste gas is cooled to below the dew point of the organic matter, so that the organic matter condenses into liquid and is recovered. However, the current heat exchanger is directly connected to the chemical exhaust pipeline, and the flow rate of the organic waste gas in the heat exchanger is difficult to control. When the concentration of the organic waste gas is high and the flow rate is too fast, the organic waste gas will be discharged before it is completely cooled and condensed. When the concentration of the organic waste gas is low and the flow rate is slow, the treatment efficiency of the organic waste gas is slow.

[0004] On the other hand, the patent with the search announcement number CN111023867B discloses a temperature difference adjustable low-temperature liquid nitrogen heat exchanger, which can adjust the liquid nitrogen spraying amount according to the temperature difference obtained by the temperature measuring device to achieve the control of the maximum temperature difference. However, when the low-temperature heat exchanger cools the organic waste gas, a large amount of ice and water droplets will remain on the tubes and baffles. The ice and water droplets on the tubes and baffles will reduce the heat transfer efficiency of the heat exchanger, thereby reducing the heat exchanger's ability to treat organic waste gas. To this end, we provide a heat exchanger for organic chemical waste gas treatment and its use method to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art, and provides a heat exchanger for treating organic chemical waste gas, including a heat exchange shell, wherein a tube group is arranged inside the heat exchange shell, the tube group penetrates the heat exchange shell and is fixedly connected to the heat exchange shell, a group of butt pipes are fixedly connected to both sides of the heat exchange shell, and the number of each butt pipe is three, four flow dismantling shells are arranged inside the heat exchange shell, the four flow dismantling shells penetrate the heat exchange shell and are fixedly connected to the heat exchange shell, the tube group penetrates the four flow dismantling shells in turn, and the four flow dismantling shells are fixed to the tube group, the organic waste gas generated by the factory enters the heat exchange shell through a group of butt pipes on one side of the heat exchange shell, the organic waste gas is guided by the four flow dismantling shells, so that the organic waste gas flows in a winding manner in the heat exchange shell and is discharged to the outside through a group of butt pipes on the other side, and contacts with the tube group for many times during the circulation process of the organic waste gas, the tube group cools the organic waste gas to below the dew point of the organic matter, so that the organic matter condenses into liquid.

[0006] A driving mechanism is arranged inside the flow dismantling shell, and the driving mechanism includes two symmetrical slide slot plates, which are respectively located on the front and back of the flow dismantling shell, and three-pronged plates are fixed on the outer surfaces of the two slide slot plates, and three equally spaced toggle components are arranged on the sides of the two three-pronged plates, and the toggle components include a moving box.

[0007] A group of cleaning mechanisms are arranged above and below each of the moving boxes, and the number of cleaning mechanisms in each group is six. The tube group includes six groups of single-row tubes, and the number of single-row tubes in each group is the same as the number of cleaning mechanisms in each group, and the positions correspond. The cleaning mechanism includes an annular seat fixed on the flow dismantling shell, and the annular seat is sleeved on the outer surface of the single-row tube. An outer ratchet ring is arranged on the outside of the annular seat, and a fixing ring is fixed on the side of the outer ratchet ring away from the annular seat. A scratch plate group is fixed on the outer surface of the fixing ring, and the scratch plate group is sleeved on the outer surface of the single-row tube. The scratch plate group includes three scratch spiral plates, and the three scratch spiral plates are all in contact with the single-row tube.

[0008] Two adjustment mechanisms are also provided inside the flow dismantling shell, and the adjustment mechanisms include a sliding plate and a fixed plate fixed on the flow dismantling shell, two hinged seats are fixed between the fixed plate and the flow dismantling shell, two symmetrical cut-off pieces are hinged on the outer surfaces of the two hinged seats, and a pressure rod is fixed on one side of the four cut-off pieces, and four straight sliding grooves 1 are opened on the outer surface of the sliding plate, and the four straight sliding grooves 1 are respectively slidably connected to the four pressure rods, and two limit rods 3 are fixed on the outer surface of the flow dismantling shell, and the two limit rods 3 are slidably connected to the sliding plate.

[0009] Four sewage discharge mechanisms are arranged below the heat exchange shell, and the sewage discharge mechanism includes a sewage storage box, which is fixedly connected to the bottom surface of the heat exchange shell, the inner wall of the sewage storage box is rotatably connected with a rotating drum, the outer surface of the rotating drum is provided with a sewage storage groove, the outer surface of the sewage storage box is installed with a glass window, the outer surface of the sewage storage box is fixed with a motor 1, the output end of the motor 1 is fixed to the rotating drum, and the bottom of the sewage storage box is fixedly connected with a sewage discharge pipe, so that the staff can observe the accumulation situation in the sewage storage box through the glass window, and after the liquid accumulation completely submerges the sewage storage groove, the motor 1 is controlled to rotate the rotating drum, so that the ice cubes and liquid in the sewage storage groove are introduced into the bottom of the sewage storage box, and discharged through the sewage discharge pipe to be collected uniformly.

[0010] The driving mechanism also includes a rotating shaft and a motor 2 fixed on the heat exchange shell, the output end of the motor 2 is connected to the rotating shaft through a belt and a pulley, the rotating shaft passes through the dismantling flow shell and is sealed and rotatably connected to the dismantling flow shell, a crank 1 is fixed at both ends of the rotating shaft, the two cranks 1 are respectively slidably connected to the two slide plates, two sliding rods are fixed on the outer surface of the dismantling flow shell, the outer surfaces of the two sliding rods are slidably connected with sliding tubes, and the two slide plates are fixed to the two slide tubes. After the control motor 2 is started, the rotating shaft will be driven to rotate through the belt and the pulley, and the rotation of the rotating shaft will move the slide plate through the crank 1, so that the slide plate drives the three-fork plate to move back and forth.

[0011] The toggle assembly also includes two symmetrical ratchet bars, which are meshed with an outer ratchet ring. Four limit rods 1 are fixed to the inner wall of the moving box, and the four limit rods 1 are slidably connected to the two ratchet bars. Two groups of spring steel sheets 1 are fixed to the inner wall of the moving box, and the number of each group of spring steel sheets 1 is two. The two groups of spring steel sheets 1 are respectively in contact with two ratchet bars. After the ratchet bar retracts into the moving box under pressure, the ratchet bar is reset by the spring tension of the spring steel sheet 1, so that the ratchet bar remains in meshing with the outer ratchet ring.

[0012] The cleaning mechanism also includes a fixed block fixed on the annular seat, a slip ring is fixed on a side of the outer ratchet ring close to the annular seat, the slip ring is rotatably connected to the annular seat, the fixed block is sleeved on the single-row tube, three ratchets are hinged on the outer surface of the fixed block, three spring steel sheets II are fixed on the fixed block, the three spring steel sheets II are respectively in contact with the three ratchets, an inner ratchet ring is fixed to the inner wall of the outer ratchet ring, and the three ratchets are all meshed with the inner ratchet ring.

[0013] A wave groove is formed on the outer surface of the fixed ring, and two vibration components are arranged on the outer surface of the annular seat, and the vibration components include a fixed seat fixed on the annular seat and a pressure column sliding on the inner wall of the wave groove, and two limit rods 2 are fixed on the outer surface of the fixed seat, and a sleeve 1 is fixed on the side of the pressure column away from the fixed ring, and the two limit rods 2 are both slidably connected to the sleeve 1, and an impact column is slidably connected to the inner wall of the sleeve 1, and a telescopic spring 1 is arranged on the inner wall of the sleeve 1, and the two ends of the telescopic spring 1 are respectively fixed to the impact column and the sleeve 1.

[0014] The three ratchets cooperate with the inner ratchet ring to prevent the outer ratchet ring from rotating reversely. The three ratchets are all engaged with the inner ratchet ring. When the moving box drives the ratchet bar close to the three-pronged plate, the teeth on the ratchet bar will press the outer ratchet ring to make the outer ratchet ring rotate. At this time, the three ratchets do not press the teeth of the inner ratchet ring. When the moving box drives the ratchet bar away from the three-pronged plate, the three ratchets press the teeth of the inner ratchet ring and the ratchet bar cannot drive the outer ratchet ring to rotate. Therefore, when the moving box drives the ratchet bar to reciprocate, the outer ratchet ring can only rotate in the same direction intermittently. Through this movement mode, the outer ratchet ring drives the scratch plate group on the fixed ring to rotate continuously, so that the scratch plate group continues to rotate and scratches the surface of the single-row tube.

[0015] The regulating mechanism also includes a long rod, which passes through the flow dismantling shell and is sealingly rotatably connected to the flow dismantling shell. A second crank is fixed to one end of the long rod close to the sliding plate. A second straight sliding groove is provided on the outer surface of the sliding plate. The second straight sliding groove is slidably connected to the second crank. The outer surface of the long rod is rotatably connected to a limit block, and the limit block is fixed to the inner wall of the flow dismantling shell. When the rotating long rod 808 drives the second crank 809 to rotate, the second crank 809 will move the sliding plate 801 through the second straight sliding groove 807 to move the sliding plate 801.

[0016] The adjustment mechanism also includes an arc-shaped plate fixed on the heat exchange shell, a flip plate is fixed to the end of the long rod away from the sliding plate, a sleeve 2 is fixed to the outer surface of the flip plate, a latch is slidably connected to the inner wall of the sleeve 2, a plurality of limiting holes matched with the latch are opened on the outer surface of the arc-shaped plate, a pull rod is fixed to the outer surface of the latch, a telescopic spring 2 is sleeved on the outer surface of the pull rod, and both ends of the telescopic spring 2 are respectively fixed to the sleeve 2 and the latch.

[0017] When adjusting the blocking force of the intercepting plate on the gas, the flip plate is controlled to rotate, and the pull rod is inserted into the limiting hole of the corresponding arc plate. The latch is subjected to the spring pressure of the telescopic spring 2, and the flip plate is limited by keeping the latch in the inserted state, thereby maintaining the adjusted intercepting plate state.

[0018] The method for using the heat exchanger comprises the following steps:

[0019] Step 1: The organic waste gas generated by the factory enters the heat exchange shell through a group of butt pipes on one side of the heat exchange shell. The organic waste gas is guided by four dismantling shells, so that the organic waste gas flows in a winding manner in the heat exchange shell and is discharged to the outside through a group of butt pipes on the other side. During the circulation of the organic waste gas, it contacts the tube group many times. The tube group cools the organic waste gas to below the dew point of the organic matter, so that the organic matter condenses into liquid.

[0020] Step 2, control motor 2 to start, motor 2 will drive crank 1 to rotate, crank 1 rotates through the slide plate to make the moving box on the tripod plate reciprocate, because each time the moving box drives the ratchet bar to move close to the rotating shaft, the teeth on the ratchet bar will press the outer ratchet ring, so that the outer ratchet ring drives the fixed ring to rotate, so that the scratch plate group on each single-row tube starts to rotate and scratch the water droplets and ice layers on the single-row tube, while the fixed ring rotates, the wave groove will move sleeve 1 back and forth, so that the impact column hits the surface of the flow removal shell for multiple times, so that the water droplets and ice layers on the surface of the flow removal shell are vibrated and fall off quickly.

[0021] Step three, when it is necessary to adjust the gas flow rate according to the concentration of organic waste gas, control the flip plate to drive the long rod to rotate, and the rotation of the long rod drives the crank 2 to move the sliding plate. When the sliding plate is close to the hinged seat, the straight slide groove 1 will squeeze the pressure rod to cause the cut-off plate to rotate, and the gas flow rate is adjusted by adjusting the cut-off area of ​​the pressure rod.

[0022] Step 4: The liquid and ice cubes dropped to the bottom of the heat exchange shell will be collected in the dirt storage box. The staff can observe the accumulation in the dirt storage box through the glass window, control the rotation of the drum to guide the ice cubes and liquid in the dirt storage tank to the bottom of the dirt storage box and discharge them through the drain pipe.

[0023] Compared with the prior art, the heat exchanger for treating organic chemical waste gas has the following beneficial effects:

[0024] 1. The present invention is provided with a driving mechanism and a cleaning mechanism, so that the outer ratchet ring drives the fixed ring to rotate, so that the scratching plate group on each single-row tube starts to rotate and scratch the water droplets and ice layers on the single-row tube. While the fixed ring rotates, the wave groove drives the sleeve to move back and forth, so that the impact column repeatedly hits the surface of the flow dismantling shell, so that the water droplets and ice layers on the surface of the flow dismantling shell are quickly shaken and fall off, so that the device can keep the flow dismantling shell and the tube group clean, effectively avoiding the problem of a large amount of ice and water droplets remaining on the tube group and the flow dismantling shell, which leads to a decrease in the heat transfer efficiency of the heat exchanger, so that the device can have a good treatment state for organic waste gas.

[0025] 2. The present invention is provided with an adjustment mechanism. When it is necessary to adjust the gas flow rate according to the concentration of the organic waste gas, the flip plate is controlled to drive the long rod to rotate, and the rotation of the long rod drives the crank 2 to move the sliding plate. When the sliding plate is close to the hinged seat, the straight slide groove 1 will squeeze the pressure rod to rotate the intercepting plate, and the gas flow rate is adjusted by adjusting the intercepting area of ​​the pressure rod. When the concentration of the organic waste gas is high and the flow rate is too fast, the intercepting plate is controlled to rotate to increase the intercepting area of ​​the intercepting plate for the organic waste gas, effectively avoiding the problem of the organic waste gas being discharged before it is completely cooled and condensed. When the concentration of the organic waste gas is low and the flow rate is slow, the intercepting plate is controlled to rotate to reduce the intercepting area of ​​the intercepting plate for the organic waste gas, so that the organic waste gas passes quickly, thereby improving the treatment efficiency of the device.

[0026] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic front view of the three-dimensional structure of the present invention;

[0028] Figure 2 A rear view showing the three-dimensional structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the heat exchange shell of the present invention;

[0030] Figure 4 It is a schematic diagram of the flow direction of organic waste gas in the heat exchange shell of the present invention;

[0031] Figure 5 It is a schematic diagram of the split structure of the flow shell and the heat exchange shell of the present invention;

[0032] Figure 6 It is a three-dimensional structural cross-sectional view of the dirt storage box of the present invention;

[0033] Figure 7 It is a schematic diagram of the split structure of the sewage discharge mechanism of the present invention;

[0034] Figure 8 It is a three-dimensional structural schematic diagram of the driving mechanism and multiple groups of cleaning mechanisms of the present invention;

[0035] Fig. 9 It is a three-dimensional structural schematic diagram of the mobile box of the present invention;

[0036] Fig.10 It is a three-dimensional structural schematic diagram of the driving mechanism of the present invention;

[0037] Fig.11 It is a three-dimensional structural cross-sectional view of the mobile box of the present invention;

[0038] Fig.12 It is a schematic diagram of the overall three-dimensional structure of the cleaning mechanism of the present invention;

[0039] Fig.13 It is a schematic diagram of the three-dimensional structure inside the sleeve 1 of the present invention;

[0040] Fig.14 It is a schematic diagram of the split structure of the cleaning mechanism of the present invention;

[0041] Fig.15 It is a three-dimensional structural schematic diagram of the cleaning mechanism part of the present invention;

[0042] Fig.16 The three-dimensional structure diagram of the adjusting mechanism of the present invention is shown in FIG. Figure 1 ;

[0043] Fig.17 The three-dimensional structure diagram of the adjusting mechanism of the present invention is shown in FIG. Figure 2 .

[0044] In the figure:

[0045] 1. Heat exchange shell; 2. Tube group; 3. Butt pipe;

[0046] 4. sewage discharge mechanism; 401. sewage storage box; 402. rotating drum; 403. motor 1; 404. sewage discharge pipe; 405. sewage storage tank; 406. glass window;

[0047] 5. Dismantle the flow casing;

[0048] 6. Driving mechanism; 601. Motor 2; 602. Rotating shaft; 603. Crank 1; 604. Slide plate; 605. Slide rod; 606. Slide tube; 607. Trident plate; 608. Moving box; 609. Ratchet bar; 610. Limiting rod 1; 611. Spring steel sheet 1;

[0049] 7. Cleaning mechanism; 701. Annular seat; 702. Outer ratchet ring; 703. Inner ratchet ring; 704. Fixed block; 705. Slip ring; 706. Ratchet; 707. Second spring steel sheet; 708. Fixed seat; 709. First sleeve; 710. Second limit rod; 711. Impact column; 712. First telescopic spring; 713. Pressure column; 714. Fixed ring; 715. Wave groove; 716. Scratching sheet set;

[0050] 8. Adjustment mechanism; 801. Sliding plate; 802. Articulated seat; 803. Shutter plate; 804. Pressure rod; 805. Straight slide groove one; 806. Limit rod three; 807. Straight slide groove two; 808. Long rod; 809. Crank two; 810. Flip plate; 811. Sleeve two; 812. Pull rod; 813. Latch; 814. Telescopic spring two; 815. Arc plate; 816. Limit block; 817. Fixed plate. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1 , Figure 3 and Figure 4 The present invention provides a technical solution: a heat exchanger for treating organic chemical waste gas, comprising a heat exchange shell 1, wherein a tube group 2 is arranged inside the heat exchange shell 1, the tube group 2 penetrates the heat exchange shell 1 and is fixedly connected to the heat exchange shell 1, a group of butt-joint pipes 3 are fixedly connected to both sides of the heat exchange shell 1, and the number of each group of butt-joint pipes 3 is three, and four flow dismantling shells 5 are arranged inside the heat exchange shell 1, the four flow dismantling shells 5 penetrate the heat exchange shell 1 and are fixedly connected to the heat exchange shell 1, the tube group 2 sequentially penetrates the four flow dismantling shells 5, and the four flow dismantling shells 5 are fixed to the tube group 2, the organic waste gas generated by the factory enters the heat exchange shell 1 through a group of butt-joint pipes 3 on one side of the heat exchange shell 1, the organic waste gas is guided by the four flow dismantling shells 5, so that the organic waste gas meanders in the heat exchange shell 1 and is discharged to the outside through a group of butt-joint pipes 3 on the other side, and contacts the tube group 2 multiple times during the circulation process of the organic waste gas, the tube group 2 cools the organic waste gas to below the dew point of the organic matter, so that the organic matter condenses into liquid.

[0053] See also Fig. 9 and Fig.12 A driving mechanism 6 is arranged inside the flow dismantling shell 5, and the driving mechanism 6 includes two symmetrical slide plates 604, and the two slide plates 604 are respectively located on the front and back of the flow dismantling shell 5. A three-pronged plate 607 is fixed to the outer surface of the two slide plates 604, and three equally spaced toggle components are arranged on the sides of the two three-pronged plates 607, and the toggle components include a moving box 608.

[0054] A group of cleaning mechanisms 7 is arranged above and below each moving box 608, and the number of each group of cleaning mechanisms 7 is six. The tube group 2 includes six groups of single-row tubes, and the number of each group of single-row tubes is the same as the number of each group of cleaning mechanisms 7, and the positions correspond. The cleaning mechanism 7 includes an annular seat 701 fixed on the flow dismantling shell 5, and the annular seat 701 is sleeved on the outer surface of the single-row tube. The outer side of the annular seat 701 is provided with an outer ratchet ring 702, and a fixing ring 714 is fixed on the side of the outer ratchet ring 702 away from the annular seat 701. A scratch plate group 716 is fixed to the outer surface of the ring 714. The scratch plate group 716 is sleeved on the outer surface of the single-row tube. The scratch plate group 716 includes three scratch spiral plates. The three scratch spiral plates are all in contact with the single-row tube. When the scratch plate group 716 rotates, it will scratch the ice and water droplets on the single-row tube, causing the ice and water droplets to fall to the bottom of the heat exchange shell 1. Since each single-row tube in the tube group 2 has eight scratch plate groups 716, the eight scratch plate groups 716 on the single-row tube can scratch the ice and water droplets remaining on the single-row tube when rotating.

[0055] See also Figure 5 , Figure 6 and Figure 7 Four sewage discharge mechanisms 4 are arranged below the heat exchange shell 1. The sewage discharge mechanism 4 includes a sewage storage box 401. The sewage storage box 401 is fixedly connected to the bottom surface of the heat exchange shell 1. The inner wall of the sewage storage box 401 is rotatably connected to a rotating drum 402. A sewage storage groove 405 is provided on the outer surface of the rotating drum 402. A glass window 406 is installed on the outer surface of the sewage storage box 401. A motor 403 is fixed on the outer surface of the sewage storage box 401. The output end of the motor 403 is fixed to the rotating drum 402. The bottom of the sewage storage box 401 is fixedly connected to a sewage discharge pipe 404, which falls on the heat exchange shell 1. The liquid and ice cubes at the bottom of the heat shell 1 will be collected in the dirt storage box 401. The staff can observe the accumulation in the dirt storage box 401 through the glass window 406. After the liquid accumulation completely submerges the dirt storage tank 405, the motor 1 403 is controlled to rotate the drum 402 to guide the ice cubes and liquid in the dirt storage tank 405 to the bottom of the dirt storage box 401 and discharge them through the drain pipe 404. Since the liquid completely submerges the dirt storage tank 405, during the rotation of the drum 402, the organic waste gas in the heat exchange shell 1 cannot be discharged through the flipping of the dirt storage tank 405.

[0056] See also Figure 8 and Fig.10The driving mechanism 6 also includes a rotating shaft 602 and a second motor 601 fixed on the heat exchange shell 1. The output end of the second motor 601 is connected to the rotating shaft 602 through a belt and a pulley. The rotating shaft 602 penetrates the dismantling shell 5 and is sealed and rotatably connected to the dismantling shell 5. Cranks 1 603 are fixed at both ends of the rotating shaft 602. The two cranks 1 603 are respectively slidably connected to the two slide plates 604. Two slide bars 605 are fixed to the outer surface of the dismantling shell 5. The outer surfaces of the two slide bars 605 are slidably connected with slide tubes 606. The two slide plates 604 are fixed to the two slide tubes 606. After the control motor 2 601 is started, the rotating shaft 602 will be driven to rotate through the belt and the pulley. The rotation of the rotating shaft 602 will move the slide plate 604 through the crank 1 603, so that the slide plate 604 drives the three-fork plate 607 to move back and forth.

[0057] See also Fig.11 The toggle assembly also includes two symmetrical ratchet bars 609, which are meshed with the outer ratchet ring 702. Four limit rods 610 are fixed to the inner wall of the moving box 608, and the four limit rods 610 are slidably connected to the two ratchet bars 609. Two groups of spring steel sheets 611 are fixed to the inner wall of the moving box 608, and the number of each group of spring steel sheets 611 is two. The two groups of spring steel sheets 611 are respectively in contact with the two ratchet bars 609. After the ratchet bar 609 is retracted into the moving box 608 under pressure, the ratchet bar 609 is reset by the spring tension of the spring steel sheet 611, so that the ratchet bar 609 remains in meshing with the outer ratchet ring 702.

[0058] See also Fig.13 , Fig.14 and Fig.15The cleaning mechanism 7 also includes a fixed block 704 fixed on the annular seat 701, a slip ring 705 is fixed on one side of the outer ratchet ring 702 close to the annular seat 701, and the slip ring 705 is rotatably connected to the annular seat 701. The fixed block 704 is sleeved on the single-row tube, and three ratchet claws 706 are hinged on the outer surface of the fixed block 704. Three spring steel sheets 707 are fixed on the fixed block 704. The three spring steel sheets 707 are respectively in contact with the three ratchet claws 706. The inner wall of the outer ratchet ring 702 is fixed with an inner ratchet ring 703. The outer ratchet ring 702 is prevented from rotating reversely by the cooperation of the three ratchet claws 706 and the inner ratchet ring 703. The three ratchet claws 706 are all meshed with the inner ratchet ring 703. When the moving box 608 drives the ratchet When the rack 609 approaches the tripod plate 607, the teeth on the ratchet bar 609 will press the outer ratchet ring 702, causing the outer ratchet ring 702 to rotate. At this time, the three ratchet pawls 706 do not press the teeth of the inner ratchet ring 703. When the moving box 608 drives the ratchet bar 609 away from the tripod plate 607, the three ratchet pawls 706 press the teeth of the inner ratchet ring 703, and the ratchet bar 609 cannot drive the outer ratchet ring 702 to rotate. Therefore, when the moving box 608 drives the ratchet bar 609 to reciprocate, the outer ratchet ring 702 can only rotate in the same direction intermittently. Through this movement mode, the outer ratchet ring 702 drives the scratch plate group 716 on the fixed ring 714 to rotate continuously, so that the scratch plate group 716 continues to rotate and scratches the surface of the single-row tube.

[0059] The outer surface of the fixing ring 714 is provided with a wave groove 715, and the outer surface of the annular seat 701 is provided with two vibration components, which include a fixing seat 708 fixed on the annular seat 701 and a pressure column 713 sliding on the inner wall of the wave groove 715. Two limiting rods 710 are fixed on the outer surface of the fixing seat 708, and a sleeve 709 is fixed on the side of the pressure column 713 away from the fixing ring 714. The two limiting rods 710 are both slidably connected to the sleeve 709, and the inner wall of the sleeve 709 is slidably connected to the impact column 711. The inner wall of 709 is provided with a telescopic spring 712, and the two ends of the telescopic spring 712 are respectively fixed to the impact column 711 and the sleeve 709. When the outer ratchet ring 702 drives the fixing ring 714 to rotate continuously, the wave groove 715 will move the sleeve 709 back and forth, so that the impact column 711 hits the surface of the flow dismantling shell 5 for many times, so that the water drops and ice layers on the surface of the flow dismantling shell 5 fall off quickly due to the vibration. The impact of the impact column 711 is buffered by the setting of the telescopic spring 712, so as to prevent the impact column 711 from excessively hitting the flow dismantling shell 5.

[0060] See also Figure 2 , Fig.16 and Fig.17Two adjusting mechanisms 8 are also arranged inside the flow dismantling shell 5. The adjusting mechanisms 8 include a sliding plate 801 and a fixed plate 817 fixed on the flow dismantling shell 5. Two hinged seats 802 are fixed between the fixed plate 817 and the flow dismantling shell 5. The outer surfaces of the two hinged seats 802 are hinged with two symmetrical cut-off pieces 803. One side of the four cut-off pieces 803 is fixed with a pressure rod 804. The outer surface of the sliding plate 801 is provided with four straight sliding grooves 805. The four straight sliding grooves 805 are respectively slidably connected to the four pressure rods 804. The outer surface of the flow dismantling shell 5 Two limit rods 806 are fixed on the surface, and the two limit rods 806 are slidably connected to the sliding plate 801. Since the pressure rod 804 is located on the flow path of the organic waste gas, when the sliding plate 801 is close to the hinge seat 802, the straight sliding groove 805 will squeeze the pressure rod 804 to make the cut-off piece 803 rotate, increase the cut-off area of ​​the cut-off piece 803 for the gas, increase the blocking force for the gas, thereby slowing down the flow rate of the gas. Conversely, when the sliding plate 801 is away from the hinge seat 802, the cut-off area of ​​the cut-off piece 803 for the gas is reduced, and the flow rate of the gas is increased.

[0061] The adjusting mechanism 8 also includes a long rod 808, which passes through the flow dismantling shell 5 and is sealingly rotatably connected to the flow dismantling shell 5. A second crank 809 is fixed to one end of the long rod 808 close to the sliding plate 801. A second straight sliding groove 807 is provided on the outer surface of the sliding plate 801. The second straight sliding groove 807 is slidably connected to the second crank 809. The outer surface of the long rod 808 is rotatably connected to a limit block 816, and the limit block 816 is fixed to the inner wall of the flow dismantling shell 5. When the rotating long rod 808 drives the second crank 809 to rotate, the second crank 809 will move the sliding plate 801 through the second straight sliding groove 807 to move the sliding plate 801.

[0062] The regulating mechanism 8 also includes an arc plate 815 fixed on the heat exchange shell 1, a flip plate 810 is fixed to the end of the long rod 808 away from the sliding plate 801, a sleeve 811 is fixed to the outer surface of the flip plate 810, and a latch 813 is slidably connected to the inner wall of the sleeve 811. A plurality of limiting holes matching the latch 813 are opened on the outer surface of the arc plate 815, a pull rod 812 is fixed to the outer surface of the latch 813, and a telescopic elastic sleeve is sleeved on the outer surface of the pull rod 812. Spring 814, the two ends of the telescopic spring 814 are respectively fixed to the sleeve 811 and the latch 813. When adjusting the blocking force of the shut-off piece 803 on the gas, the flip plate 810 is controlled to rotate, and the pull rod 812 is inserted into the limiting hole of the corresponding arc plate 815. The latch 813 is subjected to the spring pressure of the telescopic spring 814, and the flip plate 810 is limited by keeping the latch 813 in the inserted state, thereby maintaining the adjusted state of the shut-off piece 803.

[0063] The method for using the heat exchanger comprises the following steps:

[0064] Step 1: The organic waste gas generated by the factory enters the heat exchange shell 1 through a group of butt-joint pipes 3 on one side of the heat exchange shell 1. The organic waste gas is guided by four dismantling shells 5, so that the organic waste gas flows in a winding manner in the heat exchange shell 1 and is discharged to the outside through a group of butt-joint pipes 3 on the other side. During the circulation of the organic waste gas, it contacts the tube group 2 many times. The tube group 2 cools the organic waste gas to below the dew point of the organic matter, condenses the organic matter into liquid, and makes the organic waste gas remain in the heat exchange shell 1 after being cooled, thereby achieving the treatment effect of the organic waste gas.

[0065] Step 2, control motor 2 601 to start, motor 2 601 will drive crank 1 603 to rotate, crank 1 603 rotates through slide plate 604 to make moving box 608 on tripod plate 607 to move back and forth, because each time moving box 608 drives ratchet bar 609 to move close to rotating shaft 602, the teeth on ratchet bar 609 will press outer ratchet ring 702, so that outer ratchet ring 702 drives fixed ring 714 to rotate, so that the scratching sheet group 716 on each single-row tube starts to rotate and scratch water droplets and ice layer on the single-row tube, while fixed ring 714 rotates, wave groove 715 will move sleeve 1 709 back and forth, so that impact column 711 knocks the surface of flow dismantling shell 5 for many times, so that water droplets and ice layer on the surface of flow dismantling shell 5 fall off quickly due to vibration, effectively avoiding the problem of large amount of water droplets and ice layer remaining on flow dismantling shell 5 and tube group 2, which leads to reduced heat transfer efficiency of the device.

[0066] Step three, when it is necessary to adjust the gas flow rate according to the concentration of the organic waste gas, control the flip plate 810 to drive the long rod 808 to rotate, and the rotation of the long rod 808 drives the crank 2 809 to move the sliding plate 801. When the sliding plate 801 is close to the hinge seat 802, the straight slide groove 1 805 will squeeze the pressure rod 804 to rotate the intercepting plate 803, and the gas flow rate is adjusted by adjusting the intercepting area of ​​the intercepting plate 803. When the concentration of the organic waste gas is high and the flow rate is too fast, the intercepting plate 803 is controlled to rotate to increase the intercepting area of ​​the intercepting plate 803 for the organic waste gas, thereby effectively avoiding the problem of the organic waste gas being discharged before it is completely cooled and condensed. When the concentration of the organic waste gas is low and the flow rate is slow, the intercepting area of ​​the intercepting plate 803 for the organic waste gas is reduced to allow the organic waste gas to pass quickly, thereby improving the treatment efficiency of the device.

[0067] Step 4: The liquid and ice cubes dropped to the bottom of the heat exchange shell 1 will be collected in the dirt storage box 401. The staff can observe the accumulation in the dirt storage box 401 through the glass window 406, and control the rotation of the drum 402 to guide the ice cubes and liquid in the dirt storage tank 405 into the bottom of the dirt storage box 401 and discharge them through the drain pipe 404, so that the staff can collect the dirt in a unified manner.

[0068] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A heat exchanger for treating organic chemical waste gas, comprising a heat exchange shell (1), characterized in that: A tube group (2) is arranged inside the heat exchange shell (1), the tube group (2) penetrates the heat exchange shell (1) and is fixedly connected to the heat exchange shell (1), a group of butt-joint pipes (3) are fixedly connected to both sides of the heat exchange shell (1), and the number of each group of butt-joint pipes (3) is three, four flow dismantling shells (5) are arranged inside the heat exchange shell (1), the four flow dismantling shells (5) penetrate the heat exchange shell (1) and are fixedly connected to the heat exchange shell (1), the tube group (2) penetrates the four flow dismantling shells (5) in sequence, and the four flow dismantling shells (5) are fixed to the tube group (2); A driving mechanism (6) is arranged inside the flow dismantling housing (5), and the driving mechanism (6) comprises two symmetrical slide slot plates (604), the two slide slot plates (604) are respectively located on the front and back sides of the flow dismantling housing (5), three-prong plates (607) are fixed to the outer surfaces of the two slide slot plates (604), and three equidistantly arranged toggle components are arranged on the sides of the two three-prong plates (607), and the toggle components include a moving box (608); A group of cleaning mechanisms (7) is provided above and below each of the moving boxes (608), and the number of each group of cleaning mechanisms (7) is six. The tube group (2) includes six groups of single-row tubes, and the number of each group of single-row tubes is the same as the number of each group of cleaning mechanisms (7), and the positions of the cleaning mechanisms (7) correspond to each other. The cleaning mechanisms (7) include an annular seat (701) fixed to the flow removal shell (5), and the annular seat (701) is sleeved on the outer surface of the single-row tube. An outer ratchet ring (702) is provided on the outside of the annular seat (701), and a fixing ring (714) is fixed on a side of the outer ratchet ring (702) away from the annular seat (701). A scratching plate group (716) is fixed on the outer surface of the fixing ring (714), and the scratching plate group (716) is sleeved on the outer surface of the single-row tube. The scratching plate group (716) includes three scratching spiral plates, and the three scratching spiral plates are all in contact with the single-row tube. Two adjustment mechanisms (8) are further arranged inside the flow dismantling shell (5), the adjustment mechanisms (8) comprising a sliding plate (801) and a fixing plate (817) fixed on the flow dismantling shell (5), two hinged seats (802) are fixed between the fixing plate (817) and the flow dismantling shell (5), two symmetrical cut-off pieces (803) are hingedly connected to the outer surfaces of the two hinged seats (802), one side of the four cut-off pieces (803) is fixed with a pressure rod (804), the outer surface of the sliding plate (801) is provided with four straight sliding grooves one (805), the four straight sliding grooves one (805) are respectively slidably connected to the four pressure rods (804), and the outer surface of the flow dismantling shell (5) is fixed with two limit rods three (806), the two limit rods three (806) are slidably connected to the sliding plate (801).

2. The heat exchanger for treating organic chemical waste gas according to claim 1, characterized in that: Four sewage discharge mechanisms (4) are arranged below the heat exchange shell (1), and the sewage discharge mechanism (4) comprises a sewage storage box (401), the sewage storage box (401) is fixedly connected to the bottom surface of the heat exchange shell (1), the inner wall of the sewage storage box (401) is rotatably connected to a rotating drum (402), the outer surface of the rotating drum (402) is provided with a sewage storage groove (405), the outer surface of the sewage storage box (401) is installed with a glass window (406), the outer surface of the sewage storage box (401) is fixed with a motor 1 (403), the output end of the motor 1 (403) is fixed to the rotating drum (402), and the bottom of the sewage storage box (401) is fixedly connected with a sewage discharge pipe (404).

3. The heat exchanger for treating organic chemical waste gas according to claim 1, characterized in that: The driving mechanism (6) further comprises a rotating shaft (602) and a second motor (601) fixed on the heat exchange shell (1); the output end of the second motor (601) is connected to the rotating shaft (602) in a transmission manner via a belt and a pulley; the rotating shaft (602) penetrates the flow dismantling shell (5) and is connected to the flow dismantling shell (5) in a sealing and rotational manner; a crank one (603) is fixed to both ends of the rotating shaft (602); the two cranks one (603) are respectively connected to two slide plates (604) in a sliding manner; two slide rods (605) are fixed to the outer surface of the flow dismantling shell (5); the outer surfaces of the two slide rods (605) are connected to slide tubes (606) in a sliding manner; and the two slide plates (604) are fixed to the two slide tubes (606).

4. The heat exchanger for treating organic chemical waste gas according to claim 1, characterized in that: The toggle assembly also includes two symmetrical ratchet bars (609), the ratchet bars (609) meshing with the outer ratchet ring (702), four limit rods (610) are fixed to the inner wall of the moving box (608), the four limit rods (610) are slidably connected to the two ratchet bars (609), two groups of spring steel sheets (611) are fixed to the inner wall of the moving box (608), and the number of each group of spring steel sheets (611) is two, and the two groups of spring steel sheets (611) are in contact with the two ratchet bars (609) respectively.

5. The heat exchanger for treating organic chemical waste gas according to claim 1, characterized in that: The cleaning mechanism (7) further comprises a fixed block (704) fixed on the annular seat (701); a slip ring (705) is fixed on a side of the outer ratchet ring (702) close to the annular seat (701); the slip ring (705) is rotatably connected to the annular seat (701); the fixed block (704) is sleeved on the single-row tube; three ratchet pawls (706) are hinged on the outer surface of the fixed block (704); three spring steel sheets (707) are fixed on the fixed block (704); the three spring steel sheets (707) are in contact with the three ratchet pawls (706) respectively; an inner ratchet ring (703) is fixed on the inner wall of the outer ratchet ring (702); the three ratchet pawls (706) are all meshed with the inner ratchet ring (703).

6. The heat exchanger for treating organic chemical waste gas according to claim 1, characterized in that: The outer surface of the fixed ring (714) is provided with a wave groove (715), and the outer surface of the annular seat (701) is provided with two vibration components, and the vibration components include a fixed seat (708) fixed on the annular seat (701) and a pressure column (713) sliding on the inner wall of the wave groove (715), and the outer surface of the fixed seat (708) is fixed with two limit rods (710); a sleeve (709) is fixed on a side of the pressure column (713) away from the fixed ring (714), and the two limit rods (710) are both slidably connected to the sleeve (709), and the inner wall of the sleeve (709) is slidably connected with an impact column (711), and the inner wall of the sleeve (709) is provided with a telescopic spring (712), and the two ends of the telescopic spring (712) are respectively fixed to the impact column (711) and the sleeve (709).

7. The heat exchanger for treating organic chemical waste gas according to claim 1, characterized in that: The regulating mechanism (8) further comprises a long rod (808), the long rod (808) passing through the flow dismantling shell (5) and being rotatably connected to the flow dismantling shell (5) in a sealing manner; a second crank (809) is fixed to one end of the long rod (808) close to the sliding plate (801); a second straight sliding groove (807) is provided on the outer surface of the sliding plate (801); the second straight sliding groove (807) is slidably connected to the second crank (809); the outer surface of the long rod (808) is rotatably connected to a limit block (816); and the limit block (816) is fixed to the inner wall of the flow dismantling shell (5).

8. The heat exchanger for treating organic chemical waste gas according to claim 7, characterized in that: The regulating mechanism (8) also includes an arc-shaped plate (815) fixed on the heat exchange shell (1); a flip plate (810) is fixed to one end of the long rod (808) away from the sliding plate (801); a sleeve (811) is fixed to the outer surface of the flip plate (810); a latch (813) is slidably connected to the inner wall of the sleeve (811); a plurality of limiting holes matching the latch (813) are formed on the outer surface of the arc-shaped plate (815); a pull rod (812) is fixed to the outer surface of the latch (813); a telescopic spring (814) is sleeved on the outer surface of the pull rod (812); and two ends of the telescopic spring (814) are respectively fixed to the sleeve (811) and the latch (813).

9. A heat exchanger for treating organic chemical waste gas according to any one of claims 1 to 8, characterized in that: The method for using the heat exchanger comprises the following steps: S1. The organic waste gas generated by the factory enters the heat exchange shell (1) through a group of butt-joint pipes (3) on one side of the heat exchange shell (1). The organic waste gas is guided by four flow-removing shells (5), so that the organic waste gas flows in a meandering manner in the heat exchange shell (1) and is discharged to the outside through a group of butt-joint pipes (3) on the other side. During the flow of the organic waste gas, the organic waste gas contacts the tube group (2) multiple times. The tube group (2) cools the organic waste gas to below the dew point of the organic matter, so that the organic matter condenses into liquid. S2, control motor 2 (601) to start, motor 2 (601) will drive crank 1 (603) to rotate, crank 1 (603) rotates through the slide plate (604) to make the moving box (608) on the tripod plate (607) move back and forth, because each time the moving box (608) drives the ratchet bar (609) to move close to the rotating shaft (602), the teeth on the ratchet bar (609) will press the outer ratchet ring (702), The outer ratchet ring (702) drives the fixed ring (714) to rotate, so that the scraping sheet group (716) on each single-row tube starts to rotate and scrape the water droplets and ice layers on the single-row tube. While the fixed ring (714) rotates, the wave groove (715) moves the toggle sleeve (709) back and forth, so that the impact column (711) strikes the surface of the flow removal shell (5) multiple times, so that the water droplets and ice layers on the surface of the flow removal shell (5) fall off quickly due to vibration; S3. When the gas flow rate needs to be adjusted according to the concentration of the organic waste gas, the flip plate (810) is controlled to drive the long rod (808) to rotate. The rotation of the long rod (808) drives the second crank (809) to move the sliding plate (801). When the sliding plate (801) is close to the hinge seat (802), the first straight slide groove (805) squeezes the pressure rod (804) to rotate the intercepting plate (803), and the gas flow rate is adjusted by adjusting the intercepting area of ​​the pressure rod (804); S4. The liquid and ice cubes dropped to the bottom of the heat exchange shell (1) will be collected in the dirt storage box (401). The staff can observe the accumulation in the dirt storage box (401) through the glass window (406) and control the rotation of the drum (402) to guide the ice cubes and liquid in the dirt storage tank (405) into the bottom of the dirt storage box (401) and discharge them through the sewage pipe (404).

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