Anti-corrosion and wear-resistant waste gas fan

Abstract

The invention discloses an anti-corrosion wear-resistant waste gas fan, and relates to the technical field of waste gas fans, the anti-corrosion wear-resistant waste gas fan comprises a volute and a protection assembly, the protection assembly is arranged on the inner side of the volute, the protection assembly comprises a rubber lining layer, a protection plate, a fixing hole, a connecting bolt, an elastic gasket, a nut, a pressure sensor and an indicator lamp, and the rubber lining layer is arranged on the inner side of the volute. A protection plate is arranged on the inner side of the rubber lining layer, and fixing holes are formed in the protection plate and the volute. In the using process, corrosion and abrasion of the waste gas fan can be slowed down, after corrosion or abrasion reaches a certain degree, a worker is reminded to replace the waste gas fan in time, in the using process, the shaft rod can be cooled, meanwhile, the volute is washed, HCL adhering to the fan blades and the volute is neutralized, dust is washed away, and the service life of the waste gas fan is prolonged. And after the cleaning liquid is separated from the waste gas, the cleaning liquid can be treated and recycled, so that resource waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of exhaust gas fans, and in particular to an anti-corrosion and wear-resistant exhaust gas fan. Background Art

[0002] Exhaust gas blowers are widely used in environmental protection, chemical industry, printing, coating, electronics, gold smelting, metallurgy, waste incineration, sewage treatment and other related processes. Due to the dust (high Fe2O3 content) and corrosive gas (HCl) in the exhaust gas composition, the wear and tear of the volute and rotor group are large, the corrosion is strong, and many other factors cause the exhaust gas blower rotor group to corrode and wear, the dynamic balance is destroyed, the operating conditions change, and the vibration becomes larger. High-intensity and long-term vibration can easily cause damage to the exhaust gas blower and other related accidents. The corrosion and wear of the volute will cause the exhaust gas to leak, pollute the atmosphere, and affect production safety.

[0003] Although the volute material can be changed to anti-corrosion and wear-resistant composite plate during design, the composite plate is currently imported and there is no alternative raw material in China. The cost remains high, which reduces the promotion and use of exhaust gas fans. It is also difficult to clean the inside of the volute during use, and dust and corrosive gases are easily adhered.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an anti-corrosion and wear-resistant exhaust gas blower is proposed. Summary of the invention

[0005] The object of the present invention is to provide a corrosion-resistant and wear-resistant exhaust gas blower to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a corrosion-resistant and wear-resistant exhaust gas blower, comprising a volute and a protective assembly, a protective assembly being arranged on the inner side of the volute, the protective assembly comprising a rubber lining layer, a protective plate, fixing holes, connecting bolts, elastic gaskets, nuts, a pressure sensor and a warning light, a rubber lining layer being arranged on the inner side of the volute, and a protective plate being arranged on the inner side of the rubber lining layer, fixing holes being arranged on the protective plate and the volute, and connecting bolts being arranged in the fixing holes, an elastic gasket being sleeved on the outer side of the connecting bolt, and a nut being threadedly connected to one end of the connecting bolt, a pressure sensor being arranged between the volute and the elastic gasket, and a warning light being arranged on the outer surface of the volute.

[0007] Furthermore, the fixing holes are evenly distributed on the volute, and the warning light is connected to the pressure sensor through an internal circuit. The protective plates are evenly distributed in the volute, and the protective plates, connecting bolts and nuts are all made of titanium alloy.

[0008] Furthermore, an air inlet is provided on one side of the volute, and an air inlet cover is provided on one side of the air inlet, and the air inlet cover is two trumpet-shaped ring plates connected by small-diameter holes.

[0009] Furthermore, a shaft sleeve is rotatably connected to the middle of the volute, and fan blades are symmetrically connected to the shaft sleeve. A connecting cavity is opened in the middle of the shaft sleeve, and nozzles are symmetrically opened around the connecting cavity. The nozzles are symmetrically arranged on both sides of the fan blades.

[0010] Furthermore, a shaft rod is connected to one side of the sleeve, and a pulley is connected to the other end of the shaft rod. A water passage cavity is arranged in the middle of the shaft rod, and water ports are symmetrically arranged around the water passage cavity, and the water passage cavity is connected to the water ports.

[0011] Furthermore, an air outlet pipe is provided at the rear side of the volute, and a water outlet is provided at one side of the air outlet pipe, and the water outlet is trumpet-shaped.

[0012] Furthermore, a water tank is arranged below the air outlet pipe, and a water inlet is arranged above the water tank, and the water outlet is connected to the water tank through the water inlet.

[0013] Furthermore, a partition is provided in the water tank, and a card slot is provided in the partition and the inner wall of the water tank, a filter frame is card-engaged in the card slot, and two sides of the partition are connected through a control valve.

[0014] Furthermore, a water pump is provided on one side of the water tank, and a water outlet pipe is provided on one side of the water pump, and the water pump is connected to the inside of the water tank through a pipeline.

[0015] Furthermore, the other end of the water outlet pipe is connected to a cooling hood, and the cooling hood completely covers the water outlet, and the cooling hood is fixed on the volute.

[0016] The present invention provides a corrosion-resistant and wear-resistant exhaust gas fan, which has the following beneficial effects: during use, the corrosion and wear of the exhaust gas fan can be slowed down, and after the corrosion or wear reaches a certain degree, the staff can be reminded in time to replace it. During use, the shaft rod can be cooled while the inside of the volute can be flushed to neutralize the HCL adhered to the fan blades and the volute and wash away the dust, further slowing down the corrosion and wear of the exhaust gas fan. After the cleaning liquid is separated from the exhaust gas, the cleaning liquid can be processed and recycled, thereby reducing resource waste.

[0017] 1. When the present invention is in use, the coolant can enter the water passage cavity from the cooling cover through the water passage port to cool the shaft rod to prevent the shaft rod from being overheated. After the coolant enters the connecting cavity from the water passage cavity, it can be sprayed onto the fan blades from the nozzle and thrown onto the protective plate from the fan blades under the action of centrifugal force to neutralize the HCL adhered to the fan blades and the protective plate, and to wash away the dust adhered thereto to prevent dust accumulation, further slowing down the corrosion and wear of the exhaust gas fan. In the process of the coolant being thrown from the fan blades to the protective plate, the coolant is blown away by the exhaust gas fan. The coolant can also reduce dust and neutralize the exhaust gas to complete the pretreatment of the exhaust gas and enhance the purification effect of the exhaust gas. The coolant condensed on the protective plate can be brought out of the volute with the flow of the exhaust gas after flowing down the protective plate, and the shape of the air intake hood can try to prevent the coolant from being thrown out of the air inlet by centrifugal force. In summary, when in use, the shaft can be cooled while flushing the volute to neutralize the HCL adhered to the blades and the volute and wash away the dust, further reducing the corrosion and wear of the exhaust gas fan.

[0018] 2. When the present invention is in use, the protective plate can slow down the corrosion and wear of the exhaust gas fan, so that the fan always runs in a safe working condition, reducing the risk of dynamic balance damage, and ensuring that the fan always runs stably and efficiently. The amount and cost of precious metals are reduced, which is conducive to popularization and promotion, and avoids the risk of restricted imported materials. When the protective plate is corroded or worn, the elastic gasket can keep the connecting bolts fixed to the protective plate by applying force to the nut, and the pressure sensor can detect the force of the elastic gasket in real time. When the pressure sensor detects that the force of the elastic gasket reaches the preset value, it means that the protective plate is corroded or worn to a certain extent. At this time, the pressure sensor will light up the prompt light to remind the staff that the protective plate needs to be replaced to avoid the volute from being eroded by exhaust gas. In summary, when in use, the corrosion and wear of the exhaust gas fan can be slowed down, and when the protective plate is corroded or worn to a certain extent, the staff is reminded to replace it in time.

[0019] 3. In the present invention, after the exhaust gas carries the coolant into the air outlet duct, the coolant can fall into the water tank from the water inlet along the water outlet under the action of gravity, the partition can isolate the falling coolant, the filter frame can filter out impurities such as dust and neutralizers contained in the coolant, and after the coolant with impurities filtered out falls to the lower part of the water tank, materials can be added thereto to change its components to ensure that it can neutralize HCL again, and the adjusted coolant passes through the partition through the control valve to the other side of the water tank, and is pumped from the water tank into the cooling hood by the water pump again to complete the cycle, thereby reducing resource waste. In summary, after the cleaning liquid is separated from the exhaust gas, the cleaning liquid can be processed and recycled, thereby reducing resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of a rear-view exploded structure of a volute of a corrosion-resistant and wear-resistant exhaust gas fan according to the present invention;

[0021] Figure 2 It is a schematic diagram of the overall front view and cross-sectional three-dimensional structure of an anti-corrosion and wear-resistant exhaust gas fan of the present invention;

[0022] Figure 3 It is a schematic diagram of the cross-sectional front view of a corrosion-resistant and wear-resistant exhaust gas fan of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall rear-view stereoscopic structure of an anti-corrosion and wear-resistant exhaust gas blower of the present invention;

[0024] Figure 5 This is a schematic diagram of a three-dimensional exploded structure of a shaft sleeve of an anti-corrosion and wear-resistant exhaust gas fan of the present invention;

[0025] Figure 6 This is a schematic diagram of the sectional three-dimensional exploded structure of a water tank of a corrosion-resistant and wear-resistant exhaust gas blower of the present invention.

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

[0027] See also Figures 1 to 6 The present invention provides a technical solution: an anti-corrosion and wear-resistant exhaust gas fan, comprising a volute 1 and a protective component 2, wherein the protective component 2 is arranged on the inner side of the volute 1, and the protective component 2 comprises a rubber lining layer 201, a protective plate 202, a fixing hole 203, a connecting bolt 204, an elastic gasket 205, a nut 206, a pressure sensor 207 and a warning light 208, a rubber lining layer 201 is arranged on the inner side of the volute 1, and a protective plate 202 is arranged on the inner side of the rubber lining layer 201, fixing holes 203 are arranged on the protective plate 202 and the volute 1, and a connecting bolt 204 is arranged in the fixing hole 203, an elastic gasket 205 is sleeved on the outer side of the connecting bolt 204, and a nut 206 is threadedly connected to one end of the connecting bolt 204, a pressure sensor 207 is arranged between the volute 1 and the elastic gasket 205, and a warning light 208 is arranged on the outer surface of the volute 1.

[0028] See also Figures 1 to 4The fixing holes 203 are evenly distributed on the volute 1, and the warning light 208 is connected to the pressure sensor 207 through an internal line. The protective plate 202 is evenly distributed in the volute 1, and the protective plate 202, the connecting bolts 204, and the nuts 206 are all made of titanium alloy. An air inlet 3 is provided on one side of the volute 1, and an air inlet cover 4 is provided on one side of the air inlet 3. The air inlet cover 4 is two trumpet-shaped ring plates connected by small-diameter holes;

[0029] The specific operation is as follows: when in use, the protective plate 202 can reduce the corrosion and wear of the exhaust gas fan, so that the fan always operates in a safe condition, reduces the risk of dynamic balance damage, and ensures that the fan always operates stably and efficiently. The usage and cost of precious metals are reduced, which is conducive to popularization and promotion, and the risk of restricted imported materials is avoided. When the protective plate 202 is corroded or worn, the elastic gasket 205 can apply force to the nut 206 to keep the connecting bolt 204 fixed to the protective plate 202, and the pressure sensor 207 can detect the force applied to the elastic gasket 205 in real time. When the pressure sensor 207 detects that the force applied to the elastic gasket 205 reaches the preset value, it means that the protective plate 202 is corroded or worn to a certain extent. At this time, the pressure sensor 207 will light up the prompt light 208 to remind the staff that the protective plate 202 needs to be replaced to prevent the volute 1 from being eroded by exhaust gas. In summary, when in use, the corrosion and wear of the exhaust gas fan can be slowed down, and when the protective plate 202 is corroded or worn to a certain extent, the staff can be reminded to replace it in time.

[0030] See also Figures 2 to 6 A shaft sleeve 5 is rotatably connected to the middle of the volute 1, and the shaft sleeve 5 is symmetrically connected to the fan blades 6. A connecting cavity 7 is opened in the middle of the shaft sleeve 5, and nozzles 8 are symmetrically opened around the connecting cavity 7. The nozzles 8 are symmetrically arranged on both sides of the fan blades 6. A shaft rod 9 is connected to one side of the shaft sleeve 5, and a pulley 10 is connected to the other end of the shaft rod 9. A water passage cavity 11 is arranged in the middle of the shaft rod 9, and water passage ports 12 are symmetrically arranged around the water passage cavity 11. The water passage cavity 11 is connected to the water passage port 12. An air outlet pipe 13 is arranged on the rear side of the volute 1, and a water outlet 14 is arranged on one side of the air outlet pipe 13. The water outlet 14 is trumpet-shaped, and a water outlet 14 is arranged below the air outlet pipe 13. A water tank 15 is provided, and a water inlet 16 is provided above the water tank 15, the water outlet 14 is communicated with the water tank 15 through the water inlet 16, a partition 17 is provided in the water tank 15, and a card slot 18 is provided on the partition 17 and the inner wall of the water tank 15, a filter frame 19 is connected in the card slot 18, and the two sides of the partition 17 are communicated through a control valve, 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 communicated with the inside of the water tank 15 through a pipeline, 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, and the cooling cover 22 is fixed on the volute 1;

[0031] The specific operation is as follows: when in use, the coolant can enter the water passage cavity 11 from the cooling cover 22 through the water passage 12 to cool the shaft 9 to prevent the shaft 9 from being overheated. After the coolant enters the connecting cavity 7 from the water passage cavity 11, it can be sprayed onto the fan blade 6 from the nozzle 8, and under the action of centrifugal force, it is thrown from the fan blade 6 to the protective plate 202 to neutralize the HCL adhered to the fan blade 6 and the protective plate 202, and the dust adhered thereto is washed away to prevent dust accumulation. The corrosion and wear of the exhaust gas fan can be further reduced. In the process of the coolant being thrown from the fan blade 6 to the protective plate 202, the coolant can also reduce dust and neutralize the exhaust gas with the flow of the exhaust gas, complete the pretreatment of the exhaust gas, and enhance the purification effect of the exhaust gas. The coolant condensed on the protective plate 202 can be brought out of the volute 1 along with the flow of the exhaust gas after flowing down along the protective plate 202, and the shape of the air intake cover 4 can prevent the coolant from being thrown out from the air inlet 3 by centrifugal force as much as possible. In summary, when in use , while cooling the shaft 9, the volute 1 can be flushed to neutralize the HCL adhered to the blades 6 and the volute 1 and wash away the dust, further reducing the corrosion and wear of the exhaust fan. After the exhaust gas carries the coolant into the air outlet pipe 13, the coolant can fall into the water tank 15 from the water inlet 16 along the water outlet 14 under the action of gravity. The partition 17 can isolate the falling coolant, and the filter frame 19 can filter out impurities such as dust and neutralizers contained in the coolant. After the coolant with impurities filtered out falls to the lower part of the water tank 15, materials can be added thereto to change its components to ensure that it can neutralize the HCL again. The adjusted coolant passes through the control valve through the partition 17 to the other side of the water tank 15, and is again pumped from the water tank 15 into the cooling cover 22 by the water pump 20 to complete the cycle, reducing resource waste. In summary, after the cleaning liquid is separated from the exhaust gas, the cleaning liquid can be processed and recycled, thereby reducing resource waste.

[0032] In summary, when this kind of corrosion-resistant and wear-resistant exhaust gas blower is in use, the protective plate 202 can reduce the corrosion and wear of the exhaust gas blower, so that the blower always runs in a safe condition, reducing the risk of dynamic balance damage, and ensuring that the blower always runs stably and efficiently. The amount and cost of precious metals are reduced, which is conducive to popularization and promotion, and avoids the risk of restricted imported materials. When the protective plate 202 is corroded or worn, the elastic gasket 205 can keep the connecting bolt 204 fixed to the protective plate 202 by applying force to the nut 206, and the pressure sensor 207 can detect the force on the elastic gasket 205 in real time. When the pressure sensor 207 detects that the force on the elastic gasket 205 reaches the preset value, it means that the protective plate 202 has been corroded or worn to a certain extent. At this time, the pressure sensor 207 will turn on the warning light 2. 08 lights up, reminding the staff that the protective plate 202 needs to be replaced to prevent the volute 1 from being eroded by exhaust gas. The coolant can enter the water cavity 11 from the cooling cover 22 through the water port 12 to cool the shaft 9 to prevent the shaft 9 from being overheated. After the coolant enters the connecting cavity 7 from the water cavity 11, it can be sprayed onto the fan blade 6 from the nozzle 8, and thrown from the fan blade 6 to the protective plate 202 under the action of centrifugal force, neutralizing the HCL adhered to the fan blade 6 and the protective plate 202, and flushing the dust adhered thereto to avoid dust accumulation. The corrosion and wear of the exhaust gas fan are further reduced. In the process of the coolant being thrown from the fan blade 6 to the protective plate 202, as the exhaust gas flows, the coolant can also reduce dust and neutralize the exhaust gas, complete the pretreatment of the exhaust gas, and enhance the purification effect of the exhaust gas. The coolant condensed on the protective plate 202 can be brought out of the volute 1 along with the flow of the exhaust gas after flowing down along the protective plate 202. The shape of the air intake cover 4 can prevent the coolant from being thrown out of the air inlet 3 by centrifugal force as much as possible. After the exhaust gas carries the coolant into the air outlet pipe 13, the coolant can flow along the volute 13 under the action of gravity. The water outlet 14 falls into the water tank 15 from the water inlet 16, the partition 17 can isolate the falling coolant, and the filter frame 19 can filter out impurities such as dust and neutralizers contained in the coolant. After the coolant with impurities filtered out falls to the lower part of the water tank 15, materials can be added therein to change its components to ensure that it can neutralize HCL again. The adjusted coolant passes through the partition 17 through the control valve to reach the other side of the water tank 15, and is again pumped from the water tank 15 into the cooling cover 22 by the water pump 20 to complete the cycle, thereby reducing resource waste.

[0033] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A corrosion-resistant and wear-resistant exhaust gas fan, characterized in that: The invention comprises a volute (1) and a protective assembly (2), wherein an air inlet (3) is arranged on one side of the volute (1), and an air inlet cover (4) is arranged on one side of the air inlet (3); a shaft sleeve (5) is rotatably connected to the middle of the volute (1), and fan blades (6) are symmetrically connected to the shaft sleeve (5) on all sides; a connecting cavity (7) is provided in the middle of the shaft sleeve (5), and nozzles (8) are symmetrically provided on all sides of the connecting cavity (7); a shaft rod (9) is connected to one side of the shaft sleeve (5), and a pulley (10) is connected to the other end of the shaft rod (9); a water passage cavity (11) is provided in the middle of the shaft rod (9), and the water passage cavity (11) is symmetrically connected to the other side of the water passage cavity (11); A water opening (12) is symmetrically arranged around the volute (1); a protective component (2) is arranged on the inner side of the volute (1); the protective component (2) comprises a rubber lining layer (201), a protective plate (202), a fixing hole (203) and a connecting bolt (204); a rubber lining layer (201) is arranged on the inner side of the volute (1); a protective plate (202) is arranged on the inner side of the rubber lining layer (201); fixing holes (203) are arranged on the protective plate (202) and the volute (1); and connecting bolts (204) are arranged in the fixing holes (203); an air outlet pipe (13) is arranged on the rear side of the volute (1); A water outlet (14) is provided on one side of the air outlet pipe (13), and the water outlet (14) is trumpet-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 volute (1) along with the flow of the exhaust gas. The shape of the air inlet cover (4) prevents the coolant from being thrown out of the air inlet (3) by centrifugal force. After the exhaust gas carries the coolant into the air outlet pipe (13), the coolant is discharged from the volute (1). Under the action of gravity, the coolant falls into the water tank (15) from the water inlet (16) along the water outlet (14). The partition (17) isolates the falling coolant. The filter frame (19) filters out dust and neutralizing impurities contained in the coolant. After the coolant from which the impurities have been filtered falls to the lower part of the water tank (15), materials are added thereto to change its components so as to ensure that it can neutralize HCL again. The adjusted coolant passes through the partition (17) through the control valve to reach the other side of the water tank (15), and is again pumped from the water tank (15) into the cooling cover (22) by the water pump (20).

2. The anti-corrosion and wear-resistant exhaust gas blower according to claim 1, characterized in that: The air inlet cover (4) is two trumpet-shaped ring plates connected by small-diameter holes, the nozzles (8) are symmetrically arranged on both sides of the fan blade (6), and the water passage cavity (11) is connected to the water passage (12).

3. The anti-corrosion and wear-resistant exhaust gas blower according to claim 2, characterized in that: The protection component (2) further comprises an elastic gasket (205), a nut (206), a pressure sensor (207) and a warning light (208); the elastic gasket (205) is sleeved on the outside of the connecting bolt (204), and one end of the connecting bolt (204) is threadedly connected to the nut (206); a pressure sensor (207) is arranged between the volute (1) and the elastic gasket (205), and a warning light (208) is arranged on the outer surface of the volute (1).

4. The anti-corrosion and wear-resistant exhaust gas blower according to claim 3, characterized in that: The fixing holes (203) are evenly spaced on the volute (1), and the warning light (208) is connected to the pressure sensor (207) via an internal circuit. The protective plate (202) is evenly spaced inside the volute (1), and the protective plate (202), the connecting bolts (204), and the nuts (206) are all made of titanium alloy.

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

6. The anti-corrosion and wear-resistant exhaust gas blower 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 interior of the water tank (15) through a pipeline.

7. The anti-corrosion and wear-resistant exhaust gas blower according to claim 6, characterized in that: The other end of the water outlet pipe (21) is connected to a cooling hood (22), and the cooling hood (22) completely covers the water outlet (12), and the cooling hood (22) is fixed on the volute (1).

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