Corrosion and wear resistant exhaust fan

Abstract

The application discloses a kind of anti-corrosion wear-resistant waste gas fan, it is related to waste gas fan technical field, including volute and protection assembly, the volute inside is provided with protection assembly, the protection assembly includes rubber lining, guard board, fixed hole, connecting bolt, elastic gasket, nut, pressure sensor and prompt light, the volute inside is provided with rubber lining, and rubber lining inside is provided with guard board, the guard board, volute are all provided with fixed hole.The application can slow down the corrosion and wear of waste gas fan during use, and timely remind staff to replace when corrosion or wear to a certain extent, and in the process of use, the volute can be flushed while cooling the shaft, the HCL adhered to the fan blade and volute is neutralized and the dust is washed away, further slowing down the corrosion and wear of waste gas fan, after the cleaning fluid is separated from the waste gas, the cleaning fluid can be treated and recycled, thereby reducing resource waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas fan, in particular to a kind of corrosion-resistant wear-resistant waste gas fan. BACKGROUND

[0002] Waste gas fan is widely used in environmental protection, chemical industry, printing, coating, electronics, gold smelting, metallurgy and garbage incineration, sewage treatment and other related processes of industry. Due to the influence of many factors such as dust (high Fe2O3 content) in waste gas composition, containing corrosive gas (HCl), strong corrosion and wear of volute and rotor set, etc., the rotor set of waste gas fan is corroded and worn, the dynamic balance is destroyed, the operating condition changes and the vibration becomes larger. High intensity long time vibration is easy to cause waste gas fan damage and other related accidents. Volute corrosion and wear will cause waste gas leakage, air pollution and affect safety production.

[0003] Although the material of volute can be changed to corrosion-resistant wear-resistant composite board during design, but at present the composite board depends on import, there is no substitute raw material in China, the cost is high, which reduces the popularization and use of waste gas fan, and it is difficult to clean the inside of volute, dust and corrosive gas is easy to adhere.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a kind of corrosion-resistant wear-resistant waste gas fan is provided. SUMMARY

[0005] The present application aims to provide a kind of corrosion-resistant wear-resistant waste gas fan to solve the problems raised in the above background.

[0006] To achieve the above object, the present application provides the following technical scheme: a kind of corrosion-resistant wear-resistant waste gas fan, including volute and protection assembly, the volute inside is provided with protection assembly, the protection assembly includes rubber lining, protection plate, fixed hole, connecting bolt, elastic gasket, nut, pressure sensor and prompt light, the volute inside is provided with rubber lining, and the rubber lining inside is provided with protection plate, the protection plate and volute are all provided with fixed hole, and the fixed hole is provided with connecting bolt, the connecting bolt outside is sleeved with elastic gasket, and the connecting bolt one end is connected with nut by screw thread, the volute and elastic gasket are provided with pressure sensor, and the volute outer surface is provided with prompt light.

[0007] Further, the fixed hole is equidistantly distributed on the volute, and the prompt light is connected with the pressure sensor through the internal circuit, the protection plate is equidistantly distributed in the volute, and the protection plate, connecting bolt and nut are made of titanium alloy.

[0008] Further, the volute side is provided with air inlet, and the air inlet side is provided with air inlet cover, the air inlet cover is two horn-shaped ring plates connected by small-diameter holes.

[0009] Further, the middle part of the volute is rotationally connected with a shaft sleeve, and the shaft sleeve is symmetrically connected with a fan blade around the periphery, a communication cavity is formed in the middle part of the shaft sleeve, and a spray port is symmetrically formed around the periphery of the communication cavity, and the spray port is symmetrically arranged on both sides of the fan blade.

[0010] Further, one side of the shaft sleeve is connected with a shaft rod, the other end of the shaft rod is connected with a belt pulley, a water passing cavity is arranged in the middle part of the shaft rod, and a water passing port is symmetrically arranged around the periphery of the water passing cavity, and the water passing cavity and the water passing port are in communication.

[0011] Further, the rear side of the volute is provided with an air outlet pipe, and the air outlet pipe is provided with a water outlet on one side, and the water outlet is in the shape of a horn.

[0012] Further, the water tank is provided below the air outlet pipe, and the water tank is provided with a water inlet above, and the water outlet is in communication with the water tank through the water inlet.

[0013] Further, a partition plate is arranged in the water tank, and a clamping groove is formed in the partition plate and the inner wall of the water tank, a filter frame is clamped and connected in the clamping groove, and the two sides of the partition plate are in communication through a control valve.

[0014] Further, the water tank is provided with a water pump on one side, and the water pump is provided with a water outlet pipe on one side, and the water pump is in communication with the inside of the water tank through a pipeline.

[0015] Further, the other end of the water outlet pipe is connected with a cooling cover, and the cooling cover completely covers the water passing port, and the cooling cover is fixed on the volute.

[0016] The application provides a kind of anti-corrosion wear-resistant waste gas fan, with the following beneficial effects: in the use process, the corrosion and wear of waste gas fan can be slowed down, and after corrosion or wear to a certain extent, the staff is reminded to replace in time, and in the use process, the volute can be flushed while the shaft rod is cooled, the HCL adhered in the fan blade and volute is neutralized and the dust is washed away, further slowing down the corrosion and wear of waste gas fan, after the cleaning fluid is separated from waste gas, the cleaning fluid can be treated and recycled, thereby reducing resource waste.

[0017] 1. In use, the coolant can enter the water passage chamber from the cooling cover through the water inlet to cool the shaft and prevent it from overheating. After entering the connecting chamber from the water passage chamber, the coolant can be sprayed onto the fan blades through the nozzle and, under the action of centrifugal force, thrown from the fan blades onto the protective plate. This neutralizes the HCl adhering to the fan blades and the protective plate and washes away the dust adhering to them, preventing dust accumulation and further slowing down the corrosion and wear of the exhaust fan. During the process of the coolant being thrown from the fan blades onto the protective plate, it is also carried away by the exhaust gas... The flow of air and the coolant can also reduce dust and neutralize the exhaust gas, completing the pretreatment of the exhaust gas and enhancing the purification effect. The coolant condensed on the protective plate can be carried out of the volute along with the flow of exhaust gas after flowing down the protective plate. The shape of the air intake shroud can minimize the coolant being thrown out of the air intake by centrifugal force. In summary, during use, the shaft can be cooled while the inside of the volute is flushed, neutralizing the HCl adhering to the fan blades and inside the volute and washing away the dust, further reducing the corrosion and wear of the exhaust gas fan.

[0018] 2. In use, the protective plate of this invention can slow down the corrosion and wear of the exhaust gas fan, ensuring that the fan always operates under safe conditions, reducing the risk of dynamic balance failure, and ensuring stable and efficient operation of the fan. It reduces the amount and cost of precious metals used, facilitating widespread adoption and mitigating the risks associated with restrictions on imported materials. Furthermore, when the protective plate corrodes or wears, the elastic gasket can apply force to the nut to keep the connecting bolts fixed to the protective plate. The pressure sensor can detect the force on the elastic gasket in real time. When the pressure sensor detects that the force on the elastic gasket reaches a preset value, it indicates that the protective plate has been corroded or worn to a certain extent. At this point, the pressure sensor will illuminate an indicator light, reminding personnel to replace the protective plate to prevent the volute casing from being corroded by exhaust gas. In summary, in use, it can slow down the corrosion and wear of the exhaust gas fan, and promptly remind personnel to replace the protective plate when it is corroded or worn to a certain extent.

[0019] 3. In this invention, after the exhaust gas carries the coolant into the outlet duct, the coolant, under the influence of gravity, falls from the outlet into the water tank. The baffle isolates the falling coolant, and the filter frame removes impurities such as dust and neutralizing agents from the coolant. After the coolant, having removed impurities, falls to the bottom of the water tank, materials can be added to alter its composition, ensuring it can neutralize HCl again. The adjusted coolant passes through the baffle via a control valve to the other side of the water tank, where it is pumped back into the cooling shroud, completing the cycle and reducing resource waste. In summary, after the cleaning fluid is separated from the exhaust gas, the cleaning fluid can be treated and recycled, thereby reducing resource waste. Attached Figure Description

[0020] Figure 1It is a back perspective exploded structural schematic view of the vortex shell of the anti-corrosion and wear-resistant waste gas fan of the application;

[0021] Figure 2 It is a whole front perspective sectional structural schematic view of the anti-corrosion and wear-resistant waste gas fan of the application;

[0022] Figure 3 It is a sectional front structural schematic view of the anti-corrosion and wear-resistant waste gas fan of the application;

[0023] Figure 4 It is a whole back perspective structural schematic view of the anti-corrosion and wear-resistant waste gas fan of the application;

[0024] Figure 5 It is a shaft sleeve exploded structural schematic view of the anti-corrosion and wear-resistant waste gas fan of the application;

[0025] Figure 6 It is a water tank sectional exploded structural schematic view of the anti-corrosion and wear-resistant waste gas fan of the application.

[0026] In the figure: 1, vortex shell; 2, protection assembly; 201, rubber lining layer; 202, protection plate; 203, fixing hole; 204, connecting bolt; 205, elastic gasket; 206, nut; 207, pressure sensor; 208, prompt light; 3, air inlet; 4, air inlet cover; 5, shaft sleeve; 6, fan blade; 7, communication cavity; 8, nozzle; 9, shaft; 10, pulley; 11, water passage; 12, water inlet; 13, air outlet pipe; 14, water outlet; 15, water tank; 16, water inlet; 17, partition; 18, clamping groove; 19, filter frame; 20, water pump; 21, water outlet pipe; 22, cooling cover. DETAILED DESCRIPTION

[0027] Please refer to Figures 1 to 6 The application provides a technical scheme: an anti-corrosion and wear-resistant waste gas fan, which comprises a vortex shell 1 and a protection assembly 2, the inner side of the vortex shell 1 is provided with the protection assembly 2, the protection assembly 2 comprises a rubber lining layer 201, a protection plate 202, a fixing hole 203, a connecting bolt 204, an elastic gasket 205, a nut 206, a pressure sensor 207 and a prompt light 208, the inner side of the rubber lining layer 201 is provided on the inner side of the vortex shell 1, and the inner side of the rubber lining layer 201 is provided with the protection plate 202, the protection plate 202 and the vortex shell 1 are both provided with the fixing hole 203, and the fixing hole 203 is provided with the connecting bolt 204, the outer side of the connecting bolt 204 is sleeved with the elastic gasket 205, and one end of the connecting bolt 204 is threadedly connected with the nut 206, the pressure sensor 207 is arranged between the vortex shell 1 and the elastic gasket 205, and the outer surface of the vortex shell 1 is provided with the prompt light 208.

[0028] Please refer to Figures 1 to 4The fixed holes 203 are equidistantly distributed on the volute 1, and the indicating lamp 208 is connected with the pressure sensor 207 through an internal circuit, the protective plates 202 are equidistantly distributed in the volute 1, and the protective plates 202, the connecting bolts 204 and the nuts 206 are made of titanium alloy, one side of the volute 1 is provided with the air inlet 3, one side of the air inlet 3 is provided with the air inlet cover 4, and the air inlet cover 4 is two horn-shaped ring plates connected by small-diameter holes.

[0029] Specific operation is as follows, in use, the protective plates 202 can slow down the corrosion and wear of the waste gas fan, so that the fan always runs in a safe working condition, reduces the risk of dynamic balance damage, and ensures that the fan always runs stably and efficiently. The use amount and cost of precious metals are reduced, which is conducive to popularization and promotion, and avoids the risk of limitation of imported materials. When the protective plates 202 are corroded or worn, the elastic gaskets 205 can keep the connecting bolts 204 fixed to the protective plates 202 by applying force to the nuts 206, and the pressure sensor 207 can detect the stress of the elastic gaskets 205 in real time. When the pressure sensor 207 detects that the stress of the elastic gaskets 205 reaches a preset value, it indicates that the protective plates 202 have been corroded or worn to a certain extent. At this time, the pressure sensor 207 lights up the indicating lamp 208 to remind the staff to replace the protective plates 202, so as to avoid the volute 1 from being eroded by waste gas. In summary, in use, the corrosion and wear of the waste gas fan can be slowed down, and when the protective plates 202 are corroded or worn to a certain extent, the staff can be reminded to replace them in time.

[0030] Please refer to Figures 2 to 6 The shaft sleeve 5 is rotationally connected to the middle of the volute 1, and the four symmetrical fan blades 6 are connected to the periphery of the shaft sleeve 5. The communication cavity 7 is formed in the middle of the shaft sleeve 5, and the four symmetrical nozzles 8 are formed in the periphery of the communication cavity 7. The nozzles 8 are symmetrically arranged on both sides of the fan blades 6. The shaft sleeve 5 is connected to the shaft rod 9 on one side, and the other end of the shaft rod 9 is connected to the belt pulley 10. The water passage 11 is arranged in the middle of the shaft rod 9, and the four symmetrical water inlets 12 are arranged around the water passage 11. The water passage 11 is in communication with the water inlets 12. The volute 1 is provided with the air outlet pipe 13 on the rear side, and the air outlet pipe 13 is provided with the water outlet 14 on one side. The water outlet 14 is in the shape of a horn. The water tank 15 is arranged below the air outlet pipe 13, and the water inlet 16 is arranged above the water tank 15. The water outlet 14 is in communication with the water tank 15 through the water inlet 16. The water tank 15 is provided with the partition plate 17, and the partition plate 17 and the inner wall of the water tank 15 are provided with the clamping groove 18. The filter frame 19 is clamped and connected in the clamping groove 18. The partition plate 17 is in communication with the control valve on both sides. The water pump 20 is arranged on one side of the water tank 15, and the water outlet pipe 21 is arranged on one side of the water pump 20. The water pump 20 is in communication with the inside of the water tank 15 through a pipeline. The other end of the water outlet pipe 21 is connected to the cooling cover 22, and the cooling cover 22 completely covers the water inlets 12. The cooling cover 22 is fixed on the volute 1.

[0031] Specific operation as follows, in use, the cooling liquid can from cooling cover 22 through the water inlet 12 into the water cavity 11, the shaft 9 cooling, to avoid the shaft 9 temperature is too high, and the cooling liquid from the water cavity 11 into the communication cavity 7, can be from the nozzle 8 on the fan blade 6 and in the centrifugal force from the fan blade 6 on the guard plate 202 on the HCL is neutralized, and the dust adhering to it is washed, to avoid the accumulation of dust, further reduce the corrosion, wear and tear of the exhaust fan, while the cooling liquid from the fan blade 6 is thrown to the guard plate 202, with the flow of exhaust gas, the cooling liquid can also be dusted and neutralized, complete the pretreatment of exhaust gas, strengthen the purification effect of exhaust gas, the condensation of cooling liquid on the guard plate 202 along the guard plate 202 after the flow down, can be taken together with the flow of exhaust gas out of the volute 1, while the shape of the inlet cover 4 can avoid the cooling liquid is thrown out of the air inlet 3 by centrifugal force, in summary, in use, can be cooled while the shaft 9, to the volute 1 in the flushing, the fan blade 6 and the volute 1 adhering to the HCL is neutralized and the dust is washed away, further reduce the corrosion, wear and tear of the exhaust fan, after the exhaust gas carrying cooling liquid into the air outlet pipe 13, the cooling liquid can fall into the water tank 15 along the water outlet 14 from the water inlet 16 under the action of gravity, the partition 17 can be isolated by the falling cooling liquid, filter frame 19 can filter out the dust, neutralization and other impurities contained in the cooling liquid, after the impurities filtered out of the cooling liquid falls to the lower part of the water tank 15, can be put into the material, so as to change its composition, to ensure that it can be neutralized again, the adjusted cooling liquid through the control valve through the partition 17 to the other side of the water tank 15, is pumped again from the water tank 15 into the cooling cover 22, complete the cycle, reduce the waste of resources, in summary, after the washing liquid and exhaust gas separation, the washing liquid can be treated and recycled, so as to reduce the waste of resources.

[0032] In summary, the anti-corrosion and wear-resistant waste gas fan can slow down the corrosion and wear of the waste gas fan through the protection plate 202, so that the fan always runs in a safe working condition, reduces the risk of dynamic balance damage, and ensures stable and efficient operation of the fan. The use of the amount of noble metal is reduced, and the cost is reduced, which is conducive to popularization and promotion, and avoids the risk of limited imported materials. When the protection plate 202 is corroded or worn, the elastic gasket 205 can keep the connecting bolt 204 fixed to the protection plate 202 by applying force to the nut 206, and the pressure sensor 207 can detect the stress of the elastic gasket 205 in real time. When the pressure sensor 207 detects that the stress of the elastic gasket 205 reaches a preset value, it indicates that the protection plate 202 has been corroded or worn to a certain extent. At this time, the pressure sensor 207 lights up the warning light 208, reminding the staff to replace the protection plate 202, so as to avoid the erosion of the volute 1 by waste gas. The cooling liquid can enter the water passage 11 from the cooling cover 22 through the water inlet 12 to cool the shaft 9, so as to avoid the temperature of the shaft 9 being too high. After the cooling liquid enters the communication cavity 7 from the water passage 11, it can be sprayed onto the fan blade 6 from the spray port 8 and be thrown onto the protection plate 202 from the fan blade 6 under the action of centrifugal force. The HCL adhering to the fan blade 6 and the protection plate 202 is neutralized, and the dust adhering to the fan blade 6 and the protection plate 202 is washed away, so as to further slow down the corrosion and wear of the waste gas fan. During the process that the cooling liquid is thrown onto the protection plate 202 from the fan blade 6, the cooling liquid can also dust and neutralize the waste gas along with the flow of the waste gas, complete the pretreatment of the waste gas, and strengthen the purification effect of the waste gas. The condensed cooling liquid on the protection plate 202 can be taken out of the volute 1 along with the flow of the waste gas after flowing down along the protection plate 202. The shape of the inlet cover 4 can avoid the cooling liquid being thrown out of the air inlet 3 by the centrifugal force as much as possible. After the waste gas carrying the cooling liquid enters the air outlet pipe 13, the cooling liquid can fall into the water tank 15 from the water inlet 16 along the water outlet 14 under the action of gravity. The partition plate 17 can isolate the falling cooling liquid, and the filter frame 19 can filter out the impurities such as dust and neutralization substances contained in the cooling liquid. After the impurities in the cooling liquid are filtered out, the material can be put into the lower part of the water tank 15, so that the composition of the cooling liquid is changed to ensure that the cooling liquid can neutralize HCL again. The adjusted cooling liquid passes through the partition plate 17 to the other side of the water tank 15 through the control valve, and is then pumped into the cooling cover 22 from the water tank 15 by the water pump 20, so as to complete the circulation and reduce the waste of resources.

[0033] Embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments are chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A corrosion-resistant and wear-resistant exhaust gas fan, characterized in that, The device includes a vortex housing (1) and a protective assembly (2). An air inlet (3) is provided on one side of the vortex housing (1), and an air intake hood (4) is provided on one side of the air inlet (3). A bushing (5) is rotatably connected to the middle of the vortex housing (1), and fan blades (6) are symmetrically connected around the bushing (5). A connecting cavity (7) is opened in the middle of the bushing (5), and nozzles (8) are symmetrically opened around the connecting cavity (7). A shaft (9) is connected to one side of the bushing (5), and a pulley (10) is connected to the other end of the shaft (9). A water passage cavity (11) is provided in the middle of the shaft (9), and the water passage cavity (11) is four... A water inlet (12) is symmetrically arranged around the vortex shell (1). A protective component (2) is provided inside the vortex shell (1). The protective component (2) includes a rubber lining layer (201), a protective plate (202), fixing holes (203), and connecting bolts (204). A rubber lining layer (201) is provided inside the vortex shell (1), and a protective plate (202) is provided inside the rubber lining layer (201). Fixing holes (203) are provided on both the protective plate (202) and the vortex shell (1), and connecting bolts (204) are provided in the fixing holes (203). An air outlet pipe (13) is provided on the rear side of the vortex shell (1). Furthermore, a water outlet (14) is provided on one side of the air outlet pipe (13). The water outlet (14) is funnel-shaped. A water tank (15) is provided below the air outlet pipe (13), and a water inlet (16) is provided above the water tank (15). The water outlet (14) is connected to the water tank (15) through the water inlet (16). The coolant condensed on the protective plate (202) flows down along the protective plate (202) and is carried out of the vortex shell (1) along with the flow of exhaust gas. The shape of the air intake hood (4) prevents the coolant from being thrown out of the air intake port (3) by centrifugal force. After the exhaust gas carries the coolant into the air outlet pipe (13), Under the action of gravity, the coolant falls from the inlet (16) into the water tank (15) along the outlet (14). The baffle (17) isolates the falling coolant. The filter frame (19) filters out the dust, neutralizing impurities contained in the coolant. After the coolant with the impurities removed falls to the bottom of the water tank (15), materials are added into it to change its composition, so as to ensure that it can neutralize HCl again. The adjusted coolant passes through the baffle (17) through the control valve to the other side of the water tank (15), and is once again pumped from the water tank (15) into the cooling cover (22) by the water pump (20).

2. The corrosion-resistant and wear-resistant exhaust gas fan according to claim 1, characterized in that, The air intake shroud (4) consists of two horn-shaped ring plates connected by small-diameter holes. The nozzles (8) are symmetrically arranged on both sides of the fan blades (6). The water passage chamber (11) is connected to the water inlet (12).

3. The corrosion-resistant and wear-resistant exhaust gas fan according to claim 2, characterized in that, The protective component (2) also includes an elastic washer (205), a nut (206), a pressure sensor (207), and an indicator light (208). An elastic washer (205) is sleeved on the outside of the connecting bolt (204), and a nut (206) is threaded onto one end of the connecting bolt (204). A pressure sensor (207) is provided between the volute (1) and the elastic washer (205), and an indicator light (208) is provided on the outer surface of the volute (1).

4. The corrosion-resistant and wear-resistant exhaust gas fan according to claim 3, characterized in that, The fixing holes (203) are evenly distributed on the vortex shell (1), and the indicator light (208) is connected to the pressure sensor (207) through internal wiring. The protective plate (202) is evenly distributed inside the vortex shell (1), and the protective plate (202), connecting bolt (204), and nut (206) are all made of titanium alloy.

5. The corrosion-resistant and wear-resistant exhaust gas fan according to claim 4, characterized in that, The water tank (15) is provided with a partition (17), and the partition (17) and the inner wall of the water tank (15) are provided with a slot (18). A filter frame (19) is engaged in the slot (18), and the two sides of the partition (17) are connected by a control valve.

6. The corrosion-resistant and wear-resistant exhaust gas fan according to claim 5, characterized in that, A water pump (20) is provided on one side of the water tank (15), and a water outlet pipe (21) is provided on one side of the water pump (20). The water pump (20) is connected to the inside of the water tank (15) through the pipe.

7. The corrosion-resistant and wear-resistant exhaust gas fan according to claim 6, characterized in that, The other end of the water outlet pipe (21) is connected to a cooling cover (22), and the cooling cover (22) completely covers the water inlet (12). The cooling cover (22) is fixed on the vortex shell (1).

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