Spraying liquid film dust removal device for desulfurizing tower of thermal power plant

Abstract

The invention relates to the field of thermal power plant flue gas treatment equipment, in particular to a thermal power plant desulfurization tower spraying liquid film dust removal device which comprises a tower body, a spraying assembly, a flow gathering fan assembly, an adjusting assembly, an air inlet pipe and an air outlet pipe, the air inlet pipe is arranged on the side wall of the tower body, and the air outlet pipe is arranged on the side wall of the tower body. The air inlet pipe is suitable for introducing discharged flue gas into the tower body, the air outlet pipe is suitable for discharging flue gas in the tower body, the spraying assembly comprises a circulating water tank body and a spraying part, the circulating water tank body is arranged at the bottom of the tower body, spraying liquid is stored in the circulating water tank body, and an inlet of the spraying part is connected with the bottom of the circulating water tank body; an outlet of the spraying part is formed in the top of the tower body, the adjusting assembly is used for adjusting the spraying amount of the spraying part according to the rotating speed of the flow gathering fan assembly, and the spraying liquid film dust removal device of the desulfurizing tower of the thermal power plant can adaptively adjust the spraying amount, reduce unnecessary power loss and improve the matching performance of the discharged flue gas pressure and the spraying amount.

Description

Technical Field

[0001] The invention relates to the field of flue gas treatment equipment in thermal power plants, in particular to a desulfurization tower spraying liquid film dust removal device in thermal power plants. Background Art

[0002] Thermal power plants, also known as thermal power plants, are factories that use coal, oil, and natural gas as fuel to produce electricity. During the entire process of producing electricity, thermal power plants will emit dust particles, sulfur dioxide, and nitrogen oxides from the fuel combustion process. The impact of these various emissions on the environment exceeds a certain limit and causes the deterioration of environmental quality.

[0003] Therefore, dust removal equipment is needed to treat industrial waste gas. A desulfurization tower is a tower-type equipment for desulfurizing industrial waste gas. A large-scale desulfurization device for flue gas desulfurization is called a desulfurization tower, and a small-scale desulfurization and dust removal device used for flue gas desulfurization of coal-fired industrial boilers and kilns is mostly called a desulfurization dust collector. Its main purpose is to reduce the emission of harmful substances such as sulfur dioxide in the exhaust gas to protect the environment and human health. Among them, the spray desulfurization tower is one of the most widely used types of desulfurization towers. The spray desulfurization tower absorbs sulfides such as SO2 in the flue gas and converts them into sulfates through spray liquid, and reacts and precipitates, thereby achieving the purpose of purifying the flue gas.

[0004] However, during the operation of the spray desulfurization tower, a large amount of water and energy are consumed to drive equipment such as the spray device and the circulation pump, which increases the operating cost of the equipment. In addition, the matching between the flue gas pressure and the spray volume due to the lower spray density is poor, which will not only make it easy for the filler in the tower to form dry areas, but also reduce the purification degree of the desulfurization tower. Summary of the invention

[0005] To this end, an embodiment of the present invention proposes a desulfurization tower spray liquid film dust removal device for a thermal power plant, which can adaptively adjust the spray volume, reduce unnecessary power loss, and improve the matching between the exhaust flue gas pressure and the spray volume.

[0006] The desulfurization tower spraying liquid membrane dust removal device of a thermal power plant according to an embodiment of the present invention comprises:

[0007] A tower body, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is arranged on the side wall of the tower body, the air outlet pipe is arranged on the top of the tower body, the air inlet pipe is suitable for passing exhaust smoke into the tower body, and the air outlet pipe is suitable for discharging smoke in the tower body;

[0008] A spray assembly, the spray assembly comprising a circulating water tank body and a spray component, the circulating water tank body is arranged at the bottom of the tower body, the circulating water tank stores spray liquid inside, the spray component inlet is connected to the bottom of the circulating water tank body, and the spray component outlet is arranged at the top of the tower body;

[0009] A focusing fan assembly and an adjusting assembly, wherein the focusing fan assembly is arranged inside the air inlet duct, and the adjusting assembly is arranged at the rear end of the focusing fan assembly, and the adjusting assembly is used to adjust the spraying amount of the spraying component according to the rotation speed of the focusing fan assembly.

[0010] The regulating assembly includes a current sensor, a rotor and an electromagnetic seat. The electromagnetic seat is arranged on the outer side of the rotor. The output end of the electromagnetic seat is installed with a current sensor. The output end of the current sensor is connected to the spray component.

[0011] The desulfurization tower spray liquid film dust removal device of a thermal power plant according to the embodiment of the present invention can adaptively adjust the spray volume, reduce unnecessary power loss, and improve the matching between the exhaust flue gas pressure and the spray volume.

[0012] In some embodiments, the spray component includes a water pipe, a spray gun and a circulating water pump, the output end of the current sensor is connected to the circulating water pump, one end of the circulating water pump is connected to the bottom of the circulating water tank, the other end of the circulating water pump is connected to the water pipe, and the other end of the water pipe is connected to two spray guns.

[0013] Both sides of the spray gun are connected to two diversion pipes, and the outer wall of the bottom end of the diversion pipe is provided with a plurality of diversion holes at equal intervals.

[0014] In some embodiments, it also includes a filling rack assembly disposed inside the tower body, and the filling rack assembly is disposed between the spray gun and the circulating water tank body.

[0015] In some embodiments, the filling frame assembly includes a filling frame, a drainage box, a pressing plate and a fixing ring, the top of the filling frame is fixedly connected to the pressing plate, the shape of the pressing plate is set to be bent, the outer wall of the pressing plate is evenly spaced with a plurality of air permeable grooves, the top of the pressing plate is fixedly connected to the fixing ring,

[0016] Two groups of drainage boxes are arranged inside the fixed ring. The two groups of drainage boxes are symmetrically distributed about the central axis of the fixed ring. Multiple drainage boxes are arranged in each group, and the multiple drainage boxes are equidistantly distributed.

[0017] In some embodiments, a plurality of drainage holes are evenly spaced at the bottom of each drainage box, the plurality of drainage boxes are rotatably connected to a fixed ring, the shunt tube is placed inside the drainage box, and the position of the drainage box corresponds one-to-one to the position of the shunt hole.

[0018] In some embodiments, the filler frame assembly further includes an adjustment rod, a first bevel gear, a second bevel gear and an adjustment block. An adjustment rod is provided between the two sets of drainage boxes. The outer wall of the adjustment rod is fixedly connected to a plurality of first bevel gears. Both sides of each first bevel gear are meshedly connected to the second bevel gear. The end of the second bevel gear is fixedly connected to the adjustment block. The adjustment block is fixed to the drainage box one by one.

[0019] In some embodiments, it also includes a swing assembly fixedly connected to the top end of the adjusting rod, and the swing assembly includes a movable plate, a movable rod, a movable sleeve, a connecting piece and a limit seat.

[0020] A movable groove is provided on one side of the movable plate, a movable rod is slidably connected inside the movable groove, a movable sleeve is fixedly connected to the top of the movable rod, a connecting piece is slidably connected inside the movable sleeve, the top of the connecting piece is fixedly connected to the adjusting rod, a limiting seat is provided on the outer side of the connecting piece, and the top of the limiting seat is movably connected to the adjusting rod.

[0021] In some embodiments, the focusing fan assembly includes a focusing fan, a first bevel gear, a second bevel gear, a first transmission rod and a second transmission rod. The rear end of the focusing fan is fixedly connected to the first bevel gear, and the upper and lower sides of the first bevel gear are meshed with the second bevel gears. The top end of the second bevel gear located at the top is fixedly connected to the first transmission rod, and the top end of the first transmission rod passes through the limit seat and is fixedly connected to the movable plate. The top end of the second bevel gear located at the bottom is fixedly connected to the second transmission rod, and the second transmission rod extends to the outside of the air inlet duct. The bottom end of the second transmission rod is fixedly connected to the rotor.

[0022] In some embodiments, the converging fan assembly includes two transmission gear rings, a fixing rod, a fixing seat and a transmission gear fixedly connected to the outer side of the first transmission rod.

[0023] The two transmission gear rings are symmetrically arranged about the swinging assembly below, and two fixing rods are arranged between the two transmission gear rings. The rear ends of the two fixing rods are movably connected with fixing seats, and the fixing seats are fixedly connected to the tower body. The head and tail ends of the two fixing rods are fixedly connected with transmission gears, and the transmission gears are fixedly connected to the transmission gear rings.

[0024] In some embodiments, a servo motor is provided at the output end of the current sensor, the servo motor is fixedly connected to the circulating water tank, and a stirring blade is fixedly connected to the top end of the servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of a desulfurization tower spray liquid membrane dust removal device in a thermal power plant according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the cross-section structure of a desulfurization tower spray liquid membrane dust removal device in a thermal power plant according to an embodiment of the present invention.

[0027] Figure 3 Schematic diagram of the internal structure of the air inlet duct according to an embodiment of the present invention.

[0028] Figure 4 Schematic diagram of the water pipe structure according to an embodiment of the present invention.

[0029] Figure 5 It is a schematic diagram of the connection structure between the water pipe and the fixing ring according to an embodiment of the present invention.

[0030] Figure 6 Schematic diagram of the structure of a filler rack assembly according to an embodiment of the present invention.

[0031] Figure 7 Schematic diagram of the drainage box structure according to an embodiment of the present invention.

[0032] Figure 8 Schematic diagram of the structure of a pressure plate according to an embodiment of the present invention.

[0033] Fig. 9 Schematic diagram of the connection structure of the first bevel gear and the second bevel gear in an embodiment of the present invention.

[0034] Fig.10 It is a schematic diagram of the structure of a swing assembly according to an embodiment of the present invention.

[0035] Fig.11 The figure is a schematic diagram of the connection structure of the movable plate and the movable rod according to an embodiment of the present invention.

[0036] Fig.12 Schematic diagram of the transmission gear ring structure of an embodiment of the present invention.

[0037] Reference numerals:

[0038] Tower body 001, air inlet pipe 002, circulating water tank body 003, filling frame 004, focusing fan 005, adjustment component 006, air outlet pipe 007, swing component 008, water pipe 310, spray gun 320, diversion pipe 330, diversion hole 340, pressing plate 410, air permeable groove 420, fixing ring 430, drainage box 431, drainage hole 432, adjustment rod 433, first umbrella gear 434, second umbrella gear 435, adjustment block 43 6. First bevel gear 510, second bevel gear 520, first transmission rod 530, second transmission rod 540, transmission gear ring 550, fixing rod 560, fixing seat 570, transmission gear 580, rotor 701, electromagnetic seat 702, current sensor 703, circulating water pump 704, servo motor 710, stirring blade 720, movable plate 801, movable groove 802, movable rod 803, movable sleeve 804, connecting piece 805, limit seat 806. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] See also Figures 1 to 12 The desulfurization tower spraying liquid membrane dust removal device of a thermal power plant according to an embodiment of the present invention comprises:

[0041] The tower body 001, the air inlet pipe 002 and the air outlet pipe 007, the air inlet pipe 002 is arranged on the side wall of the tower body 001, the air outlet pipe 007 is arranged on the top of the tower body, the air inlet pipe 002 is suitable for passing the exhaust smoke into the tower body 001, and the air outlet pipe 007 is suitable for exhausting the smoke in the tower body 001;

[0042] The spray assembly includes a circulating water tank body 003 and a spray component. The circulating water tank body 003 is arranged at the bottom of the tower body. The circulating water tank body 003 stores spray liquid inside. The spray component inlet is connected to the bottom of the circulating water tank body 003, and the spray component outlet is arranged at the top of the tower body.

[0043] The converging fan assembly and the adjusting assembly 006, the converging fan assembly is arranged inside the air inlet duct 002, the adjusting assembly 006 is arranged at the rear end of the converging fan assembly, and the adjusting assembly 006 is used to adjust the spraying amount of the spraying component according to the rotation speed of the converging fan assembly.

[0044] The regulating component 006 includes a current sensor 703, a rotor 701 and an electromagnetic seat 702. The electromagnetic seat 702 is arranged on the outer side of the rotor 701. The output end of the electromagnetic seat 702 is installed with a current sensor 703. The output end of the current sensor 703 is connected to the spray component.

[0045] Among them, the exhaust flue gas enters the tower body 001 through the air inlet pipe 002. When the wind flows through the focusing fan 005, the strong wind flow will drive the focusing fan 005 to rotate. The greater the wind pressure of the exhaust flue gas, the faster the speed of the focusing fan 005, and the rotor 701 rotates synchronously with the focusing fan 005. When the rotor 701 rotates in the electromagnetic seat 702, an electromotive force is generated therein through electromagnetic induction, and then current is output. The current sensor 703 receives the current size in real time, and then adjusts the spraying amount of the spray component.

[0046] For example, the spray assembly can be provided with a circulating water pump 704 for providing power to the spray liquid. When the rotor 701 rotates in the electromagnetic seat 702, an electromotive force is generated therein through electromagnetic induction, and then a current is output, and the current sensor 703 receives the current in real time, and then the spray amount of the spray assembly is adjusted. In this way, the water pressure of the circulating water pump 704 is controlled, and the spray amount is adjusted. The spray gun 320 sprays the liquid evenly on the packing layer to form a layer of liquid film. Through the full contact between the spray liquid and the exhaust gas, the sulfide such as SO2 in the exhaust gas is absorbed and converted into sulfate, and reacts and precipitates, thereby achieving the purpose of purifying the flue gas.

[0047] In the desulfurization tower spray liquid film dust removal device of a thermal power plant in an embodiment of the present invention, the exhaust flue gas drives the focusing fan assembly to rotate, and the rotor rotates synchronously with the focusing fan assembly, so that when the rotor 701 rotates in the electromagnetic seat 702, an electromotive force is generated therein through electromagnetic induction, and current is output. The current sensor 703 receives the current size in real time to control the water pressure of the circulating water pump 704, adaptively adjust the spraying amount, reduce unnecessary power loss, and improve the matching between the exhaust flue gas pressure and the spraying amount.

[0048] Among them, the focusing fan assembly can gather the exhaust smoke inside the air inlet pipe 002, send the exhaust smoke farther, and make the exhaust smoke more concentratedly blown to the target area.

[0049] In some embodiments, the spraying component includes a water pipe 310, a spray gun 320 and a circulating water pump 704. The output end of the current sensor 703 is connected to the circulating water pump 704. One end of the circulating water pump 704 is connected to the bottom of the circulating water tank body 003. The other end of the circulating water pump 704 is connected to the water pipe 310. The other end of the water pipe 310 is connected to two spray guns 320.

[0050] Two diversion pipes 330 are connected to both sides of the spray gun 320 , and a plurality of diversion holes 340 are formed on the outer wall of the bottom end of the diversion pipe 330 at equal intervals.

[0051] In some embodiments, it also includes a filling rack 004 component disposed inside the tower body 001, and the filling rack 004 component is disposed between the spray gun 320 and the circulating water tank body 003.

[0052] There are two packing rack 004 assemblies, which are arranged inside the tower body 001. The packing rack 004 assemblies are used to place packing materials, increase the gas-liquid contact area, and improve the mass transfer efficiency.

[0053] In some embodiments, the filling frame 004 assembly includes a filling frame 004, a drainage box 431, a pressing plate 410 and a fixing ring 430. The top of the filling frame 004 is fixedly connected to the pressing plate 410. The shape of the pressing plate 410 is set to be bent. The outer wall of the pressing plate 410 is evenly spaced with multiple air permeable grooves 420. The top of the pressing plate 410 is fixedly connected to the fixing ring 430.

[0054] Two groups of drainage boxes 431 are arranged inside the fixed ring 430. The two groups of drainage boxes 431 are symmetrically distributed about the central axis of the fixed ring 430. Each group of drainage boxes 431 is provided with multiple drainage boxes 431, and the multiple drainage boxes 431 are equidistantly distributed. Among them, the packing material is placed on the packing rack 004 in a random pile, and the pressing plate 410 can compact the packing material above the packing rack 004, and the bent shape can make the pressing plate 410 contact with the packing material with the maximum area to prevent the packing material from being blown by the rising air flow. At the same time, the setting of the air permeable groove 420 can facilitate the discharge of smoke and the passage of the spray liquid, so that the discharged smoke can fully react with the spray liquid and the packing material.

[0055] Specifically, two groups of drainage boxes 431 are arranged inside the fixing ring 430 . The two groups of drainage boxes 431 are symmetrically distributed about the central axis of the fixing ring 430 . Each group of drainage boxes 431 is provided with a plurality of drainage boxes 431 , and the plurality of drainage boxes 431 are equidistantly distributed.

[0056] A plurality of drainage holes 432 are evenly spaced at the bottom of each drainage box 431 . The plurality of drainage boxes 431 are rotatably connected to the fixing ring 430 . The shunt tube 330 is placed inside the drainage box 431 . The position of the drainage box 431 corresponds to the position of the shunt hole 340 .

[0057] There is a drainage box 431 corresponding to the bottom of each diversion hole 340, and the arrangement of multiple drainage boxes 431 can cover the entire top of the filling frame 004, so that the spray liquid can be sprayed to every corner.

[0058] An adjusting rod 433 is arranged between the two groups of drainage boxes 431, and a plurality of first umbrella-shaped gears 434 are fixedly connected to the outer wall of the adjusting rod 433, and both sides of each first umbrella-shaped gear 434 are meshingly connected with second umbrella-shaped gears 435, and the ends of the second umbrella-shaped gears 435 are fixedly connected with adjusting blocks 436, and the adjusting blocks 436 are fixed one by one to the drainage boxes 431, and the top end of the adjusting rod 433 is fixedly connected with a swing assembly 008.

[0059] In some embodiments, a plurality of drainage holes 432 are evenly spaced at the bottom of each drainage box 431, and the plurality of drainage boxes 431 are rotatably connected to the fixing ring 430, and the shunt tube 330 is placed inside the drainage box 431, and the position of the drainage box 431 corresponds one-to-one to the position of the shunt hole 340.

[0060] In some embodiments, the filler rack 004 assembly further includes an adjustment rod 433, a first umbrella-shaped gear 434, a second umbrella-shaped gear 435 and an adjustment block 436. An adjustment rod 433 is provided between the two groups of drainage boxes 431. The outer wall of the adjustment rod 433 is fixedly connected with a plurality of first umbrella-shaped gears 434. Both sides of each first umbrella-shaped gear 434 are meshedly connected with a second umbrella-shaped gear 435. The end of the second umbrella-shaped gear 435 is fixedly connected with an adjustment block 436. The adjustment block 436 is fixed one by one with the drainage box 431.

[0061] In some embodiments, a swing assembly 008 is further provided and fixedly connected to the top of the adjusting rod 433. The swing assembly 008 includes a movable plate 801, a movable rod 803, a movable sleeve 804, a connecting piece 805 and a limiting seat 806.

[0062] A movable groove 802 is provided on one side of the movable plate 801, and a movable rod 803 is slidably connected inside the movable groove 802. A movable sleeve 804 is fixedly connected to the top of the movable rod 803. A connecting piece 805 is slidably connected inside the movable sleeve 804. The top of the connecting piece 805 is fixedly connected to the adjusting rod 433. A limiting seat 806 is provided on the outer side of the connecting piece 805. The top of the limiting seat 806 is movably connected to the adjusting rod 433.

[0063] The swing assembly 008 includes a movable plate 801, a movable groove 802 is opened on one side of the movable plate 801, a movable rod 803 is slidably connected inside the movable groove 802, the top of the movable rod 803 is fixedly connected to a movable sleeve 804, the movable sleeve 804 is slidably connected inside the connector 805, the top of the connector 805 is fixedly connected to the adjusting rod 433, a limiting seat 806 is arranged on the outer side of the connector 805, and the top of the limiting seat 806 is movably connected to the adjusting rod 433.

[0064] Among them, when the adjustment rod 433 rotates, the first umbrella gear 434 drives the second umbrella gear 435 to rotate, and the drainage box 431 will rotate back and forth, and the spray liquid inside it will be sprinkled on the filler material to form a layer of liquid film. At the same time, the rotation speed of the drainage box 431 matches the rotation speed of the first transmission rod 530, that is, the focusing fan 005. When the wind pressure is strong, the smoke particles and sulfides such as SO2 contained in the exhaust gas are more, so it is necessary to increase the dust removal performance of the desulfurization tower, and the rotation speed of the adjustment rod 433 will become faster, which will increase the spray density of the spray liquid and improve the purification degree of the desulfurization tower;

[0065] At the same time, the first transmission rod 530 drives the movable plate 801 to rotate, and the movable rod 803 makes a circular motion with the movable plate 801. Since the movable sleeve 804 at the top of the movable rod 803 is slidably connected with the connecting piece 805, when the movable rod 803 makes a circular motion, the connecting piece 805 will swing left and right accordingly, so that the adjustment rod 433 fixedly connected to the connecting piece 805 will rotate left and right, and the transmission drainage box 431 will rotate back and forth to evenly spray the spray liquid.

[0066] In some embodiments, the focusing fan assembly includes a focusing fan 005, a first bevel gear 510, a second bevel gear 520, a first transmission rod 530, and a second transmission rod 540. The rear end of the focusing fan 005 is fixedly connected to the first bevel gear 510. The upper and lower sides of the first bevel gear 510 are meshedly connected to the second bevel gear 520. The top of the second bevel gear 520 located at the top is fixedly connected to the first transmission rod 530. The top of the first transmission rod 530 passes through the limit seat 806 and is fixedly connected to the movable plate 801. The top of the second bevel gear 520 located at the bottom is fixedly connected to the second transmission rod 540. The second transmission rod 540 extends to the outside of the air inlet pipe 002. The bottom end of the second transmission rod 540 is fixedly connected to the rotor 701. Further, the focusing fan assembly also includes two transmission gear rings 550, a fixing rod 560, a fixing seat 570, and a transmission gear 580 fixedly connected to the outer side of the first transmission rod 530.

[0067] The two transmission gear rings 550 are symmetrically arranged about the swing assembly 008 below, and two fixed rods 560 are arranged between the two transmission gear rings 550. The rear ends of the two fixed rods 560 are movably connected with fixed seats 570, and the fixed seats 570 are fixedly connected to the tower body. The head and tail ends of the two fixed rods 560 are fixedly connected with transmission gears 580, and the transmission gears 580 are fixedly connected to the transmission gear rings 550.

[0068] Specifically, the focusing fan 005 drives the first bevel gear 510 at its end to transmit the second bevel gear 520 to rotate. The second bevel gear 520 directly drives the movable plate 801 to rotate under the action of the first transmission rod 530, and the transmission ring gear 550 fixedly connected to the first transmission rod 530 will transmit power to the other transmission ring gear 550 under the action of the transmission gear 580 and the fixed rod 560. In this way, the two transmission ring gears 550 will rotate synchronously, driving the two swing components 008 to operate simultaneously.

[0069] Furthermore, the second transmission rod 540 can be arranged to place the electromagnetic base 702 and the current sensor 703 outside the air inlet pipe 002, thereby preventing the coal particles of the exhaust gas from entering the electromagnetic base 702 and the current sensor 703 and affecting their service life.

[0070] Further, the output end of the current sensor 703 is provided with a servo motor 710, the servo motor 710 is fixedly connected to the circulating water tank body 003, and the top of the servo motor 710 is fixedly connected to a stirring blade 720. The output end of the current sensor 703 is provided with a servo motor 710, the servo motor 710 is fixedly connected to the circulating water tank body 003, and the top of the servo motor 710 is fixedly connected to a stirring blade 720.

[0071] Among them, the spray liquid inside the circulating water tank body 003 is usually set as a mixed liquid of limestone and water. The current sensor 703 controls the start of the servo motor 710 at the same time. The servo motor 710 drives the stirring blade 720 to stir the lime water to prevent lime precipitation and reduce the purification efficiency of the tower body 001. When the water pressure of the circulating water pump 704 increases, the spray liquid sprayed out will also increase. The unreacted spray liquid will re-enter the circulating water tank body 003 through the filling rack 004. The servo motor 710 is controlled by the current sensor 703 and increases the voltage at the same time, that is, the greater the wind pressure of the exhaust gas, the faster the stirring speed of the stirring blade 720 will be, and the uniformity of the spray liquid will be improved. When the wind pressure of the exhaust gas is strong, the smoke particles and sulfides contained in the exhaust gas are more, so the rotation speed of the adjusting rod driven by the converging fan 005 will become faster, so that the swing speed of the drainage box 431 will become faster, the spray density of the spray liquid will be increased, the purification degree of the desulfurization tower will be improved, and the exhaust gas will fully react with the spray liquid.

[0072] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0074] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0076] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0077] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A desulfurization tower spraying liquid membrane dust removal device for a thermal power plant, characterized in that: include: A tower body, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is arranged on the side wall of the tower body, the air outlet pipe is arranged on the top of the tower body, the air inlet pipe is suitable for passing exhaust smoke into the tower body, and the air outlet pipe is suitable for discharging smoke in the tower body; A spray assembly, wherein the spray assembly comprises a circulating water tank body and a spray component, wherein the circulating water tank body is arranged at the bottom of the tower body, the circulating water tank body stores spray liquid inside, the spray component inlet is connected to the bottom of the circulating water tank body, and the spray component outlet is arranged at the top of the tower body; A focusing fan assembly and an adjusting assembly, wherein the focusing fan assembly is arranged inside the air inlet duct, and the adjusting assembly is arranged at the rear end of the focusing fan assembly, and the adjusting assembly is used to adjust the spraying amount of the spraying component according to the rotation speed of the focusing fan assembly. The regulating assembly includes a current sensor, a rotor and an electromagnetic seat. The electromagnetic seat is arranged on the outer side of the rotor. The output end of the electromagnetic seat is installed with a current sensor. The output end of the current sensor is connected to the spray component.

2. The desulfurization tower spraying liquid membrane dust removal device for a thermal power plant according to claim 1, characterized in that: The spray component includes a water pipe, a spray gun and a circulating water pump. The output end of the current sensor is connected to the circulating water pump. One end of the circulating water pump is connected to the bottom of the circulating water tank. The other end of the circulating water pump is connected to the water pipe. The other end of the water pipe is connected to two spray guns. Both sides of the spray gun are connected to two diversion pipes, and the outer wall of the bottom end of the diversion pipe is provided with a plurality of diversion holes at equal intervals.

3. The desulfurization tower spraying liquid membrane dust removal device for a thermal power plant according to claim 2, characterized in that: It also includes a filling frame assembly arranged inside the tower body, and the filling frame assembly is arranged between the spray gun and the circulating water tank body.

4. The desulfurization tower spraying liquid membrane dust removal device for a thermal power plant according to claim 1, characterized in that: The packing frame assembly comprises a packing frame, a drainage box, a pressing plate and a fixing ring. The top of the packing frame is fixedly connected to the pressing plate. The shape of the pressing plate is set to be bent. The outer wall of the pressing plate is provided with a plurality of air-permeable grooves at equal intervals. The top of the pressing plate is fixedly connected to the fixing ring. Two groups of drainage boxes are arranged inside the fixed ring. The two groups of drainage boxes are symmetrically distributed about the central axis of the fixed ring. Multiple drainage boxes are arranged in each group, and the multiple drainage boxes are equidistantly distributed.

5. The desulfurization tower spraying liquid membrane dust removal device for a thermal power plant according to claim 1, characterized in that: A plurality of drainage holes are evenly spaced at the bottom of each drainage box. The plurality of drainage boxes are rotatably connected to a fixed ring. The shunt tube is placed inside the drainage box. The position of the drainage box corresponds to the position of the shunt hole one by one.

6. The desulfurization tower spraying liquid membrane dust removal device for a thermal power plant according to claim 1, characterized in that: The filling frame assembly also includes an adjusting rod, a first bevel gear, a second bevel gear and an adjusting block. An adjusting rod is arranged between the two groups of drainage boxes. The outer wall of the adjusting rod is fixedly connected with a plurality of first bevel gears. Both sides of each of the first bevel gears are meshedly connected with second bevel gears. The ends of the second bevel gears are fixedly connected with adjusting blocks. The adjusting blocks are fixed one by one to the drainage boxes.

7. The desulfurization tower spraying liquid membrane dust removal device for a thermal power plant according to claim 1, characterized in that: It also includes a swing assembly fixedly connected to the top of the adjusting rod, wherein the swing assembly includes a movable plate, a movable rod, a movable sleeve, a connecting piece and a limit seat. A movable groove is provided on one side of the movable plate, a movable rod is slidably connected inside the movable groove, a movable sleeve is fixedly connected to the top of the movable rod, a connecting piece is slidably connected inside the movable sleeve, the top of the connecting piece is fixedly connected to the adjusting rod, a limiting seat (806) is provided on the outer side of the connecting piece, and the top of the limiting seat is movably connected to the adjusting rod.

8. The desulfurization tower spraying liquid membrane dust removal device for a thermal power plant according to claim 7, characterized in that: The focusing fan assembly includes a focusing fan, a first bevel gear, a second bevel gear, a first transmission rod and a second transmission rod. The rear end of the focusing fan is fixedly connected to the first bevel gear, and the upper and lower sides of the first bevel gear are meshed with the second bevel gear. The top end of the second bevel gear located at the top is fixedly connected to the first transmission rod, and the top end of the first transmission rod passes through the limit seat and is fixedly connected to the movable plate. The top end of the second bevel gear located at the bottom is fixedly connected to the second transmission rod, and the second transmission rod extends to the outside of the air inlet duct. The bottom end of the second transmission rod is fixedly connected to the rotor.

9. The desulfurization tower spraying liquid membrane dust removal device for a thermal power plant according to claim 8, characterized in that: The converging fan assembly includes two transmission gear rings, a fixing rod, a fixing seat and a transmission gear fixedly connected to the outer side of the first transmission rod. The two transmission gear rings are symmetrically arranged about the swinging assembly below, and two fixing rods are arranged between the two transmission gear rings. The rear ends of the two fixing rods are movably connected with fixing seats, and the fixing seats are fixedly connected to the tower body. The head and tail ends of the two fixing rods are fixedly connected with transmission gears, and the transmission gears are fixedly connected to the transmission gear rings.

10. The desulfurization tower spraying liquid membrane dust removal device for thermal power plants according to claim 9, characterized in that: A servo motor is provided at the output end of the current sensor. The servo motor is fixedly connected to the circulating water tank. A stirring blade is fixedly connected to the top of the servo motor.

Images