A wet processor for flue gas cleaning in petroleum refining

Abstract

The application discloses a kind of for petroleum refining flue gas purification treatment wet processor, the present application relates to flue gas purification technical field, including box, and fixedly connected in the rack of box outer side;Air inlet mechanism, the air inlet mechanism is used to pour petroleum refining flue gas into the inner chamber of box, and bottom box is arranged on the outer surface of air inlet mechanism, by setting air inlet mechanism, the petroleum refining flue gas needing purification can be poured into the inner chamber of box, while the petroleum refining flue gas with higher temperature can be cooled, then most of oil in flue gas is collected;Oil removal mechanism, the oil removal mechanism is used to remove the oil film floating on water surface, by setting oil removal mechanism, after petroleum refining flue gas contacts with purification liquid, oil dissolved in purification liquid is removed, to achieve the collection effect of residual petroleum and organic matter in petroleum refining flue gas;Reach the effect of spraying and fully purifying petroleum refining flue gas.

Description

Technical Field

[0001] This invention relates to the field of flue gas purification technology, specifically a wet processor for purifying flue gas from petroleum refining. Background Technology

[0002] Flue gas generated during petroleum refining is one of the significant environmental challenges facing the refining industry. In core processes such as crude oil distillation, catalytic cracking, and coking, high-temperature pyrolysis and chemical reactions release complex industrial waste gases, primarily including sulfur oxides, nitrogen oxides, volatile organic compounds (VOCs), particulate matter, and toxic and harmful substances such as benzene compounds and polycyclic aromatic hydrocarbons (PAHs). These pollutants not only have pungent odors but also cause complex atmospheric pollution. Sulfur oxides and nitrogen oxides are major precursors to acid rain, while VOCs participate in photochemical reactions to generate ozone and secondary organic aerosols. Modern refining enterprises achieve flue gas purification through multi-stage treatment systems. The front end employs low-NOx combustion technology to control pollutant generation at the source; the middle stage uses electrostatic precipitators, wet desulfurization, and selective catalytic reduction (SCR) devices to remove pollutants; and the terminal stage uses regenerative thermal oxidizers to treat VOCs.

[0003] In the process of purifying flue gas from petroleum refining, failure to thoroughly treat the oil and organic matter in the flue gas will have a chain of negative impacts on the operation of subsequent environmental protection facilities and overall environmental governance. Insufficiently separated oil components (such as heavy hydrocarbons and tar) are prone to adhere and accumulate in desulfurization and denitrification units, causing problems such as packing blockage and catalyst surface coking and deactivation, significantly reducing the removal efficiency of core equipment such as selective catalytic reduction. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a wet processor for purifying petroleum refining flue gas, comprising a housing and a frame fixedly connected to the outer side of the housing;

[0005] The air intake mechanism is used to inject petroleum refining flue gas into the inner cavity of the box, and the bottom box is set on the outer surface of the air intake mechanism. By setting the air intake mechanism, the petroleum refining flue gas that needs to be purified can be injected into the inner cavity of the box, and at the same time, the high-temperature petroleum refining flue gas can be cooled down, and then most of the oil in the flue gas can be collected.

[0006] The oil removal mechanism is used to remove the oil film floating on the surface of the water flow. By setting up the oil removal mechanism, the oil dissolved in the purification liquid can be removed after the petroleum refining flue gas comes into contact with the purification liquid, thereby achieving the effect of collecting residual petroleum and organic matter in the petroleum refining flue gas.

[0007] The exhaust mechanism is used to bring the petroleum refining flue gas purification liquid into contact with the petroleum refining flue gas and discharge the purified petroleum refining flue gas. The top box is fixedly connected to the outer surface of the exhaust mechanism. By setting the exhaust mechanism, the purification liquid in the inner cavity of the box and the bottom box can be sucked out, and the purification liquid can be fully contacted with the petroleum refining flue gas to be purified through the atomization chamber. Finally, the purification liquid that has adsorbed the oil in the petroleum refining flue gas falls back into the inner cavity of the box, thus achieving the purification of the petroleum refining flue gas.

[0008] The bottom box is fixedly connected to the bottom end of the box body, the air intake mechanism is installed at the bottom end of the box body through the bottom box, the top box is fixedly connected to the top end of the box body, the exhaust mechanism is installed at the top end of the box body through the top box, and the oil removal mechanism is installed on the inner wall of the box body;

[0009] The air intake mechanism includes a partition frame, which is fixedly connected to the inner wall of the housing. A spiral tube runs through the upper surface of the partition frame, and a straight tube is fixedly connected to the inner wall of the partition frame. By setting the spiral tube, the contact time of the petroleum refining flue gas in the inner cavity of the housing can be increased, thereby cooling the high-temperature petroleum refining flue gas. This allows the petroleum flue gas in the petroleum refining flue gas to liquefy and adhere to the inner wall of the spiral tube. By setting the straight tube, the purification liquid in the bottom cavity can flow to the top of the housing under the action of suction.

[0010] Preferably, the bottom surface of the base box has a liquid inlet valve, the upper surface of the partition frame has symmetrical drainage grooves, the top end of the spiral tube is fixedly connected to a connection port, the outer surface of the connection port is fixedly connected to a water-separating plate, the water-separating plate is fixedly connected to the top of the inner wall of the box, and the straight pipe passes through the water-separating plate.

[0011] Preferably, the bottom end of the spiral tube is fixedly connected to an inclined tube, the inclined tube is inclined at an angle of 45° to the ground, the inclined tube passes through the bottom box, the lower surface of the inclined tube is connected to an oil drain pipe, and the inner wall of the inclined tube is fixedly connected to an air intake pipe, the air intake pipe extends to the middle of the inner cavity of the inclined tube.

[0012] Preferably, the oil removal mechanism includes a top cover, which is fixedly connected to the inner wall of the water-separating plate. An oil suction port is penetrating the upper surface of the top cover and penetrates the housing. A first water pump is fixedly connected to the end of the oil suction port away from the water-separating plate.

[0013] Preferably, the oil removal mechanism further includes a blocking mechanism, which includes a drain port that penetrates the lower surface of the baffle plate. A leakage ring is fixedly connected to the lower surface of the drain port, and a water-permeable ring is fixedly connected to the inner wall of the drain port.

[0014] Preferably, a movable rod is slidably connected to the inner ring of the permeable ring, and a floating ring is fixedly connected to the top end of the movable rod. The floating ring is squeezed and adapted to the top surface of the inner cavity of the top cover. A first spring is fixedly connected to the lower surface of the permeable ring, and a blocking ring is fixedly connected to the bottom end of the first spring. The blocking ring is rubbed and adapted to the inner wall of the leakage ring.

[0015] Preferably, the exhaust mechanism includes a movable cover, which is slidably connected to the inner wall of the top box, and a sealing ring is fixedly connected to the inner wall of the movable cover. An exhaust valve passes through the upper surface of the movable cover.

[0016] Preferably, the exhaust mechanism further includes a connecting shell, the outer side of the connecting shell of the through-top box, and a second water pump fixedly connected to the inner wall of the connecting shell. The water inlet of the second water pump is connected to the top end of the straight pipe, and the water outlet of the second water pump is fixedly connected to a spray pipe. The top end of the spray pipe is fixedly connected to a sealing box, and a spray nozzle is penetrating the outer side of the sealing box.

[0017] Preferably, a top frame is fixedly connected to the upper surface of the sealed box, a connecting plate is fixedly connected to the lower surface of the top frame, the connecting plate is fixedly connected to the inner wall of the top box, a spraying mechanism is sleeved on the outer surface of the water spray pipe, the spraying mechanism includes a rolling bearing, the rolling bearing is fixedly connected to the outer surface of the water spray pipe, a rotating disk is fixedly connected to the outer ring of the rolling bearing, an inclined plate is fixedly connected to the upper surface of the rotating disk, a ball is rotatably connected to the outer ring of the rotating disk, a track ring is fixedly connected to the inner wall of the top frame, and the ball is rotatably connected to the inner surface of the track ring.

[0018] Preferably, a limiting tube extends through the upper surface of the top frame, a sliding rod is slidably connected to the inner cavity of the limiting tube, a second spring is sleeved on the outer surface of the sliding rod, an arc-shaped friction plate is fixedly connected to the lower surface of the sliding rod, a spray pipe extends through the upper surface of the rotating disk, a mesh is fixedly connected to the lower surface of the spray pipe, a limiting block is fixedly connected to the inner wall of the spray pipe, a rotating frame is rotatably connected to the outer surface of the limiting block, a stirring plate is fixedly connected to the outer surface of the rotating frame, and a friction ring is fixedly connected to the outer surface of the rotating frame, the friction ring being frictionally adapted to the arc-shaped friction plate.

[0019] This invention provides a wet scrubber for purifying flue gas from petroleum refining. It offers the following advantages:

[0020] I. This wet scrubber for purifying petroleum refining flue gas, by setting an air intake mechanism, can inject the petroleum refining flue gas that needs to be purified into the inner cavity of the casing, and at the same time can cool down the high-temperature petroleum refining flue gas, and then collect most of the oil in the flue gas.

[0021] II. This wet scrubber for purifying petroleum refining flue gas, by setting up an oil removal mechanism, can remove the oil dissolved in the purification liquid after the petroleum refining flue gas comes into contact with the purification liquid, thereby achieving the effect of collecting residual petroleum and organic matter in the petroleum refining flue gas.

[0022] Third, this wet processor for purifying petroleum refining flue gas, by setting an exhaust mechanism, can draw out the purification liquid in the inner cavity of the housing and bottom chamber, and through the atomization chamber, the purification liquid comes into full contact with the petroleum refining flue gas that needs to be purified, so that the purification liquid that has adsorbed the oil in the petroleum refining flue gas falls back into the inner cavity of the housing, thus achieving the purification of the petroleum refining flue gas.

[0023] IV. This wet scrubber for purifying petroleum refining flue gas, by setting an inclined tube, allows the petroleum liquid condensed by the petroleum refining flue gas after cooling through the spiral tube to fall into the inner cavity of the inclined tube under its own gravity. By setting an oil drain pipe, the petroleum oil accumulated in the inner cavity of the inclined tube can be discharged and collected. By setting an air inlet pipe, the petroleum refining flue gas that needs to be purified can be guided. At the same time, the air inlet pipe extends to the middle of the inner cavity of the inclined tube to prevent oil from leaking out through the air inlet pipe.

[0024] V. This wet scrubber for purifying petroleum refining flue gas, by setting a blocking mechanism, can prevent the purified liquid from leaking out from the holes at the bottom of the baffle plate when the water level in the baffle plate and the inner cavity of the top cover is lower than the top cover, and can discharge the purified liquid without oil at the bottom when the water level is higher than the top cover, so that the water level is always level with the oil suction port. By setting a drain port, a leakage ring and a water permeable ring, the purified liquid can be discharged when it is in the open state. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the external structure of a wet processor for purifying petroleum refining flue gas according to the present invention.

[0026] Figure 2 This is a side view of the structure of a wet processor for purifying petroleum refining flue gas according to the present invention.

[0027] Figure 3 This is a schematic diagram of the intake mechanism structure of the present invention;

[0028] Figure 4 This is a partial structural diagram of the air intake mechanism of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of structure A in the middle;

[0030] Figure 6 This is a schematic diagram of the oil removal mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram of the blocking mechanism structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the exhaust mechanism structure of the present invention;

[0033] Figure 9 This is a schematic cross-sectional view of the exhaust mechanism of the present invention;

[0034] Figure 10 This is a schematic diagram of the liquid spraying mechanism of the present invention;

[0035] Figure 11 This is a partial structural diagram of the liquid spraying mechanism of the present invention;

[0036] Figure 12 This is a partial cross-sectional structural diagram of the spraying mechanism of the present invention.

[0037] In the diagram: 1. Housing; 2. Frame; 3. Bottom box; 4. Top box; 5. Liquid inlet valve; 6. Air inlet mechanism; 7. Oil removal mechanism; 8. Exhaust mechanism; 61. Partition frame; 62. Drainage trough; 63. Straight pipe; 64. Spiral pipe; 65. Connection port; 66. Water separator; 67. Inclined pipe; 68. Oil drain pipe; 69. Air inlet pipe; 71. Top cover; 72. Oil suction port; 73. First water pump; 74. Floating ring; 75. Moving rod; 76. Blocking mechanism; 761. Liquid outlet; 762. Leakage ring; 763. Water-permeable ring; 764. First spring; 765. Blocking ring; 81. Movable cover 82. Sealing ring; 83. Exhaust valve; 84. Connecting shell; 85. Second water pump; 86. Connecting plate; 87. Top frame; 88. Spraying mechanism; 89. Spray pipe; 810. Sealing box; 811. Spray nozzle; 881. Track ring; 882. Limiting tube; 883. Sliding rod; 884. Second spring; 885. Arc-shaped friction plate; 886. Rotating disk; 887. Rolling bearing; 888. Inclined plate; 889. Ball bearing; 8810. Spray pipe; 8811. Limiting block; 8812. Partition net; 8813. Rotating frame; 8814. Friction ring; 8815. Stirring plate. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0039] like Figures 1-12 As shown, the present invention provides a technical solution: a wet processor for purifying petroleum refining flue gas, including a housing 1 and a frame 2 fixedly connected to the outer side of the housing 1.

[0040] The air intake mechanism 6 is used to inject petroleum refining flue gas into the inner cavity of the box 1, and the bottom box 3 is set on the outer surface of the air intake mechanism 6. By setting the air intake mechanism 6, the petroleum refining flue gas that needs to be purified can be injected into the inner cavity of the box 1, and at the same time, the petroleum refining flue gas with a high temperature can be cooled down, and then most of the oil in the flue gas can be collected.

[0041] Oil removal mechanism 7 is used to remove the oil film floating on the surface of the water flow. By setting up oil removal mechanism 7, the oil dissolved in the purification liquid can be removed after the petroleum refining flue gas comes into contact with the purification liquid, thereby achieving the effect of collecting residual petroleum and organic matter in the petroleum refining flue gas.

[0042] The exhaust mechanism 8 is used to bring the petroleum refining flue gas purification liquid into contact with the petroleum refining flue gas and discharge the purified petroleum refining flue gas. The top box 4 is fixedly connected to the outer surface of the exhaust mechanism 8. By setting the exhaust mechanism 8, the purification liquid in the inner cavity of the box 1 and the bottom box 3 can be sucked out and fully contacted with the petroleum refining flue gas to be purified through the atomization chamber. Finally, the purification liquid that has adsorbed the oil in the petroleum refining flue gas falls back into the inner cavity of the box 1, thereby achieving the purification of the petroleum refining flue gas.

[0043] The bottom box 3 is fixedly connected to the bottom end of the box body 1. The air intake mechanism 6 is set at the bottom end of the box body 1 through the bottom box 3. The top box 4 is fixedly connected to the top end of the box body 1. The exhaust mechanism 8 is set at the top end of the box body 1 through the top box 4. The oil removal mechanism 7 is set at the inner wall of the box body 1.

[0044] The air intake mechanism 6 includes a partition frame 61, which is fixedly connected to the inner wall of the housing 1. A spiral tube 64 passes through the upper surface of the partition frame 61, and a straight tube 63 is fixedly connected to the inner wall of the partition frame 61. By setting the spiral tube 64, the contact time of the petroleum refining flue gas in the inner cavity of the housing 1 can be increased, thereby cooling the high-temperature petroleum refining flue gas. This allows the petroleum flue gas in the petroleum refining flue gas to liquefy and adhere to the inner wall of the spiral tube 64. By setting the straight tube 63, the purification liquid in the inner cavity of the bottom box 3 can flow to the top of the housing 1 under the action of suction.

[0045] A liquid inlet valve 5 penetrates the lower surface of the base box 3. Drainage grooves 62 symmetrically penetrate the sides of the upper surface of the partition frame 61. A connection port 65 is fixedly connected to the top of the spiral tube 64. A water-separating plate 66 is fixedly connected to the outer surface of the connection port 65. The water-separating plate 66 is fixedly connected to the top of the inner wall of the box body 1. A straight pipe 63 penetrates the water-separating plate 66. By setting the liquid inlet valve 5, the purification liquid required for purifying petroleum refining flue gas can be controlled to flow into the inner cavity of the base box 3 through the liquid inlet valve 5. By setting the connection port 65, the spiral tube 64 can be connected to the water-separating plate 66. An inclined pipe 67 is fixedly connected to the bottom end of the spiral tube 64, and the inclined angle of the inclined pipe 67 with the ground is [value missing]. At a 45° angle, the inclined pipe 67 penetrates the bottom box 3, and an oil drain pipe 68 penetrates the lower surface of the inclined pipe 67. An air inlet pipe 69 is fixedly connected to the inner wall of the inclined pipe 67, and the air inlet pipe 69 extends to the middle of the inner cavity of the inclined pipe 67. By setting the inclined pipe 67, the petroleum liquid condensed by the petroleum refining flue gas after being cooled by the spiral tube 64 can fall into the inner cavity of the inclined pipe 67 under its own gravity. By setting the oil drain pipe 68, the petroleum oil accumulated in the inner cavity of the inclined pipe 67 can be discharged and collected. By setting the air inlet pipe 69, the petroleum refining flue gas that needs to be purified can be guided. At the same time, the air inlet pipe 69 extends to the middle of the inner cavity of the inclined pipe 67 to prevent oil from leaking out through the air inlet pipe 69.

[0046] The oil removal mechanism 7 includes a top cover 71, which is fixedly connected to the inner wall of the water-separating plate 66. An oil suction port 72 penetrates the upper surface of the top cover 71 and extends through the housing 1. A first water pump 73 is fixedly connected to the end of the oil suction port 72 furthest from the water-separating plate 66. By providing the top cover 71, it can cooperate with the water-separating plate 66, allowing the purified liquid and floating oil to be contained within its inner cavity. By providing the oil suction port 72, when the first water pump 73 is operating, the oil floating on the surface of the purified liquid in the water-separating plate 66 and the inner cavity of the top cover 71 can be sucked out. Finally, the oil is discharged from the drain outlet of the first water pump 73. The oil removal mechanism 7 also includes a blocking mechanism 76, which includes a drain outlet 761 that penetrates the lower surface of the water-separating plate 66. A leakage ring 762 is fixedly connected to the lower surface of the drain outlet 761, and a water-permeable ring 763 is fixedly connected to the inner wall of the drain outlet 761. By setting the blocking mechanism 76, when the water level of the purified liquid in the inner cavity of the water-separating plate 66 and the top cover 71 is lower than that of the top cover 71, the purified liquid will not leak from the holes at the bottom of the water-separating plate 66, and when the water level of the purified liquid is higher than that of the top cover 71, the purified liquid will not leak out. When the oil level is low, the purified liquid at the bottom can be discharged, ensuring the water level remains level with the oil inlet 72. By configuring a drain port 761, a leakage ring 762, and a water-permeable ring 763, the purified liquid can be discharged when the system is open. A movable rod 75 is slidably connected to the inner ring of the water-permeable ring 763, and a floating ring 74 is fixedly connected to the top of the movable rod 75. The floating ring 74 is pressed and fitted against the top surface of the inner cavity of the top cover 71. A first spring 764 is fixedly connected to the lower surface of the water-permeable ring 763, and a [missing information - likely a component or material] is fixedly connected to the bottom end of the first spring 764. The blocking ring 765 is frictionally adapted to the inner wall of the leakage ring 762. By setting the floating ring 74, when the water level in the water-separating plate 66 and the inner cavity of the top cover 71 rises and falls, the floating ring 74 moves up and down with the water level, thereby driving the moving rod 75 to move synchronously. By setting the blocking ring 765, when the water level is not level with the top cover 71, the blocking ring 765 comes into contact with the leakage ring 762, thereby preventing the purified liquid from leaking out. When the moving rod 75 moves, the blocking ring 765 disengages from the leakage ring 762, thereby allowing the purified liquid to leak out.

[0047] The exhaust mechanism 8 includes a movable cover 81, which is slidably connected to the inner wall of the top box 4. A sealing ring 82 is fixedly connected to the inner wall of the movable cover 81. An exhaust valve 83 penetrates the upper surface of the movable cover 81. By setting the movable cover 81, the flow direction of the purified petroleum refining flue gas can be changed when it moves up and down, so that after the movable cover 81 moves upward, the petroleum refining flue gas can enter the inner cavity of the movable cover 81 and finally be discharged from the exhaust valve 83. The exhaust mechanism 8 also includes a connecting shell 84, which penetrates the outer side of the top box 4. A second water pump 85 is fixedly connected to the inner wall of the connecting shell 84. The inlet end of the second water pump 85 is connected to the top end of the straight pipe 63. A water spray pipe 89 is fixedly connected to the outlet end of pump 85. A sealing box 810 is fixedly connected to the top end of the water spray pipe 89. A water spray nozzle 811 penetrates the outer side of the sealing box 810. By setting a second water pump 85, suction can be generated in the inner cavity of the straight pipe 63 during operation, thereby causing the purified liquid in the inner cavity of the bottom box 3 to enter the straight pipe 63 and then enter the inner cavity of the water spray pipe 89 from the top, and finally spray out at high speed from the water spray nozzle 811. A top frame 87 is fixedly connected to the upper surface of the sealing box 810, and a connecting plate 86 is fixedly connected to the lower surface of the top frame 87. The connecting plate 86 is fixedly connected to the inner wall of the top box 4. A liquid spraying mechanism 88 is sleeved on the outer surface of the water spray pipe 89. The liquid spraying mechanism 88 includes a rolling bearing 887. A rolling bearing 887 is fixedly connected to the outer surface of the spray pipe 89. A rotating disk 886 is fixedly connected to the outer ring of the rolling bearing 887. An inclined plate 888 is fixedly connected to the upper surface of the rotating disk 886. A ball bearing 889 is rotatably connected to the outer ring of the rotating disk 886. A track ring 881 is fixedly connected to the inner wall of the top frame 87. The ball bearing 889 is rotatably connected to the inner surface of the track ring 881. By setting the rolling bearing 887, the rotating disk 886 can rotate stably on the outer surface of the spray pipe 89. By setting the inclined plate 888, when the purified liquid is sprayed out at high speed from the spray nozzle 811, the inclined plate 888 is subjected to an impact force, thereby causing the rotating disk 886 to rotate. By setting the track ring 881 and... The ball bearing 889 ensures more stable rotation when the rotating disk 886 rotates. A limiting tube 882 passes through the upper surface of the top frame 87. A sliding rod 883 is slidably connected to the inner cavity of the limiting tube 882. A second spring 884 is sleeved on the outer surface of the sliding rod 883. An arc-shaped friction plate 885 is fixedly connected to the lower surface of the sliding rod 883. A spray pipe 8810 passes through the upper surface of the rotating disk 886. A mesh 8812 is fixedly connected to the lower surface of the spray pipe 8810. A limiting block 8811 is fixedly connected to the inner wall of the spray pipe 8810. A rotating frame 8813 is rotatably connected to the outer surface of the limiting block 8811. An agitator plate 8815 is fixedly connected to the outer surface of the rotating frame 8813.A friction ring 8814 is fixedly connected to the outer surface of the rotating frame 8813. The friction ring 8814 is frictionally adapted to the arc-shaped friction plate 885. A limiting tube 882 limits the sliding rod 883, allowing it to move vertically up and down within the limiting tube 882. A second spring 884 compresses the sliding rod 883, causing the arc-shaped friction plate 885 to move downwards continuously. A spray pipe 8810 and a partition 8812 atomize the purified liquid as it sprays from the bottom. A limiting block 8811 limits the rotating frame 8813, ensuring stable rotation of the rotating frame 8813, friction ring 8814, and agitator 8815. This allows the agitator 8815 to strike the purified liquid entering the spray pipe 8810, thus atomizing the purified liquid.

[0048] Working principle: During use, the operator pours the purification liquid required for the petroleum refining flue gas into the inner cavity of the bottom tank 3 through the inlet valve 5, ensuring that the liquid level completely submerges the bottom opening of the straight pipe 63. Then, the operator connects the second water pump 85 to the power supply and turns it on, causing the purification liquid in the inner cavity of the bottom tank 3 to be drawn into the inner cavity of the spray pipe 89 through the straight pipe 63. Finally, it is sprayed out from the spray nozzle 811, forming a high-speed water column. Under the pressure of the high-speed water column, the inclined plate 888 is subjected to compressive force, causing the rotating disk 886 to rotate. When the rotating disk 886 rotates, the friction ring 8814 rubs against the lower surface of the arc-shaped friction plate 885, thereby causing the friction ring 8814 to drive the rotating frame 8813 to rotate. Simultaneously, the agitator plate 8815 impacts the purification liquid entering the inner cavity of the spray pipe 8810, ultimately atomizing the purification liquid and spraying it into the bottom space of the top box 4. After the purification liquid is atomized, the operator connects the air inlet pipe 69 to the petroleum refining flue gas outlet, allowing the petroleum refining flue gas to continuously enter. The petroleum refining flue gas is guided by the spiral pipe 64... Finally, the gas is sprayed out from the top opening and comes into contact with the atomized purification liquid. During this contact, the oil in the petroleum refining flue gas comes into contact with the purification liquid, and eventually the purification liquid and the adsorbed oil fall into the inner cavity of the water-separating plate 66. As the liquid accumulates, the liquid level gradually rises to be level with the top cover 71. At this time, the operator starts the first water pump 73, which causes the oil floating on the surface of the purification liquid to be sucked out and discharged by the oil suction port 72. When the liquid level exceeds the top cover 71, the floating ring 74 drives the moving rod 75 to move upward, thereby causing the moving rod to... 75 drives the blocking ring 765 to disengage from the leakage ring 762, thereby allowing the oil-free purified liquid to leak into the inner cavity of the housing 1 and come into contact with the spiral tube 64, which cools down the petroleum refining flue gas in the inner cavity of the spiral tube 64. The oil will solidify on the inner wall of the spiral tube 64 and flow into the inner cavity of the inclined tube 67 under the action of gravity. Then, the operator can open the oil drain pipe 68 to collect the oil. After the petroleum refining flue gas is purified, the exhaust valve 83 can be opened to collect the purified petroleum refining flue gas.

[0049] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A wet scrubber for purifying flue gas from petroleum refining, characterized in that, include: The enclosure (1) and the frame (2) fixedly connected to the outer side of the enclosure (1); An air intake mechanism (6) is used to inject petroleum refining flue gas into the inner cavity of the housing (1), and a bottom box (3) is provided on the outer surface of the air intake mechanism (6). Oil removal mechanism (7) is used to remove oil film floating on the surface of water flow; Exhaust mechanism (8), which is used to contact the petroleum refining flue gas purification liquid with the petroleum refining flue gas and discharge the purified petroleum refining flue gas, and a top box (4) fixedly connected to the outer surface of the exhaust mechanism (8). The bottom box (3) is fixedly connected to the bottom end of the box body (1), the air intake mechanism (6) is set at the bottom end of the box body (1) through the bottom box (3), the top box (4) is fixedly connected to the top end of the box body (1), the exhaust mechanism (8) is set at the top end of the box body (1) through the top box (4), and the oil removal mechanism (7) is set at the inner wall of the box body (1). The air intake mechanism (6) includes a partition frame (61), which is fixedly connected to the inner wall of the housing (1). A spiral tube (64) runs through the upper surface of the partition frame (61). A straight tube (63) is fixedly connected to the inner wall of the partition frame (61). A connection port (65) is fixedly connected to the top of the spiral tube (64). A water-blocking plate (66) is fixedly connected to the outer surface of the connection port (65). The oil removal mechanism (7) includes a top cover (71), which is fixedly connected to the inner wall of the water-separating plate (66), and the upper surface of the top cover (71) has an oil suction port (72). The oil removal mechanism (7) further includes a blocking mechanism (76), which includes a drain port (761) that penetrates the lower surface of the water-separating plate (66). A leakage ring (762) is fixedly connected to the lower surface of the drain port (761). A water-permeable ring (763) is fixedly connected to the inner wall of the drain port (761). A moving rod (75) is slidably connected to the inner ring of the water-permeable ring (763). A floating ring (74) is fixedly connected to the top of the moving rod (75). The floating ring (74) is pressed and adapted to the top surface of the inner cavity of the top cover (71). A first spring (764) is fixedly connected to the lower surface of the water-permeable ring (763). 4) is fixedly connected to a blocking ring (765). The blocking ring (765) is frictionally adapted to the inner wall of the leakage ring (762). The floating ring (74) moves up and down with the water level in the inner cavity of the water-separating plate (66). When the water level in the inner cavity of the water-separating plate (66) is not level with the top cover (71), the blocking ring (765) contacts the leakage ring (762) to prevent the purified liquid from leaking out. When the water level in the inner cavity of the water-separating plate (66) is above the top cover (71), the blocking ring (765) disengages from the leakage ring (762), thereby allowing the oil-free purified liquid to leak into the inner cavity of the box (1) and contact the spiral tube (64), so that the petroleum refining flue gas in the inner cavity of the spiral tube (64) is cooled.

2. A wet scrubber for purifying petroleum refining flue gas according to claim 1, characterized in that: The bottom surface of the bottom box (3) is permeated with an inlet valve (5), and the upper surface of the partition frame (61) is symmetrically permeated with drainage grooves (62). The water-separating plate (66) is fixedly connected to the top of the inner wall of the box body (1), and the straight pipe (63) passes through the water-separating plate (66).

3. A wet scrubber for purifying petroleum refining flue gas according to claim 2, characterized in that: The bottom end of the spiral tube (64) is fixedly connected to an inclined tube (67), which has an inclination angle of 45° with the ground. The inclined tube (67) penetrates the bottom box (3), and an oil drain pipe (68) penetrates the lower surface of the inclined tube (67). An air inlet pipe (69) is fixedly connected to the inner wall of the inclined tube (67), and the air inlet pipe (69) extends to the middle of the inner cavity of the inclined tube (67).

4. A wet scrubber for purifying petroleum refining flue gas according to claim 3, characterized in that: The oil suction port (72) penetrates the housing (1), and the end of the oil suction port (72) away from the water separator (66) is fixedly connected to the first water pump (73).

5. A wet scrubber for purifying petroleum refining flue gas according to claim 1, characterized in that: The exhaust mechanism (8) includes a movable cover (81), which is slidably connected to the inner wall of the top box (4). A sealing ring (82) is fixedly connected to the inner wall of the movable cover (81), and an exhaust valve (83) passes through the upper surface of the movable cover (81).

6. A wet scrubber for purifying petroleum refining flue gas according to claim 5, characterized in that: The exhaust mechanism (8) also includes a connecting shell (84), which penetrates the outer side of the top box (4). A second water pump (85) is fixedly connected to the inner wall of the connecting shell (84). The inlet end of the second water pump (85) is connected to the top end of the straight pipe (63). The outlet end of the second water pump (85) is fixedly connected to a spray pipe (89). The top end of the spray pipe (89) is fixedly connected to a sealing box (810). A spray nozzle (811) penetrates the outer side of the sealing box (810).

7. A wet scrubber for purifying petroleum refining flue gas according to claim 6, characterized in that: A top frame (87) is fixedly connected to the upper surface of the sealed box (810), and a connecting plate (86) is fixedly connected to the lower surface of the top frame (87). The connecting plate (86) is fixedly connected to the inner wall of the top box (4). A spraying mechanism (88) is sleeved on the outer surface of the water spray pipe (89). The spraying mechanism (88) includes a rolling bearing (887). The rolling bearing (887) is fixedly connected to the outer surface of the water spray pipe (89), and the outer ring of the rolling bearing (887) is fixedly connected to... There is a rotating disk (886), and an inclined plate (888) is fixedly connected to the upper surface of the rotating disk (886). A ball bearing (889) is rotatably connected to the outer ring of the rotating disk (886). A track ring (881) is fixedly connected to the inner wall of the top frame (87). The ball bearing (889) is rotatably connected to the inner surface of the track ring (881). When the purified liquid is sprayed out at high speed from the spray nozzle (811), the inclined plate (888) is subjected to an impact force, which causes the rotating disk (886) to rotate.

8. A wet scrubber for purifying petroleum refining flue gas according to claim 7, characterized in that: The upper surface of the top frame (87) is penetrated by a limiting tube (882), and a sliding rod (883) is slidably connected to the inner cavity of the limiting tube (882). A second spring (884) is sleeved on the outer surface of the sliding rod (883). An arc-shaped friction plate (885) is fixedly connected to the lower surface of the sliding rod (883). The upper surface of the rotating disk (886) is penetrated by a spray pipe (8810), and a mesh (8812) is fixedly connected to the lower surface of the spray pipe (8810). A limiting block (8811) is fixedly connected to the inner wall of the spray pipe (8810). A rotating frame (8813) is rotatably connected to the outer surface of the limiting block (8811). A stirring plate (8815) is fixedly connected to the outer surface of the rotating frame (8813). A friction ring (8814) is fixedly connected to the outer surface of the rotating frame (8813). The friction ring (8814) is rubbed and adapted to the arc-shaped friction plate (885).

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