A centrifugal fire smoke exhaust fan

Abstract

The present invention relates to a centrifugal fire smoke exhaust fan, belonging to the technical field of centrifugal fans. The centrifugal fire smoke exhaust fan includes a base and a fan, and further includes: an air inlet pipe, a filtering mechanism; a spraying mechanism; a mixing mechanism; a water removal mechanism. Through the combined use of the filtering mechanism and the spraying mechanism, when the centrifugal fire fan works, the filtering mechanism filters the flue gas entering the air inlet pipe, so that the dust particles in the flue gas are blocked. When the spraying mechanism works, clean water will flow through the heat exchange pipes in the filtering mechanism, so that the clean water absorbs the temperature of the flue gas, thereby reducing the probability of the impeller being corroded. The clean water after absorbing the temperature of the flue gas will be sprayed into the flue gas through the spraying mechanism. At this time, because the clean water has a temperature, the atomization efficiency of the clean water can be higher, so that the atomized clean water can more comprehensively absorb the polluting gases in the flue gas, further reducing the probability of the impeller being corroded and protecting the environment well.

Description

Technical Field

[0001] The present invention belongs to the technical field of centrifugal fans, and particularly relates to a centrifugal fire smoke exhaust fan. Background Art

[0002] A centrifugal fire smoke exhaust fan is a high-efficiency and low-noise fan specifically used for fire smoke exhaust; its main characteristics are compact structure, large air volume, and low noise, suitable for various occasions requiring smoke exhaust and ventilation; the structural design of this fan includes components such as inlet and outlet flanges, impeller, base, motor, volute, panel, and frame; it is usually installed on the roof or indoors of a building, and discharges indoor smoke and harmful gases outdoors through centrifugal force; the working principle of the centrifugal fire smoke exhaust fan is to accelerate and discharge the gas by using centrifugal force, and realize the gas flow through the rotational movement of the impeller; it can operate continuously under high-temperature conditions and meets the requirements of fire smoke exhaust.

[0003] After retrieval, a Chinese invention patent with the patent number CN108167206B discloses a centrifugal fire smoke exhaust fan, including a base, the top of the base penetrates through a housing, and buffer devices are fixedly connected between both sides of the bottom of the housing and both sides of the bottom inner wall of the base. A dust-proof cover is fixedly connected to the right side of the top of the housing, and a first motor is fixedly connected inside the dust-proof cover. The output shaft of the first motor is fixedly connected with a first pulley. The present invention relates to the technical field of fire-fighting equipment. This centrifugal fire smoke exhaust fan improves the heat dissipation effect of the motor by placing the motor outside, prevents dust in the air from entering the motor by using the dust-proof cover, improves the service life of the motor, can buffer and protect the device, prevent large vibrations from occurring, reduce the generation of noise, and can shake the first filter plate and the second filter plate during the operation of the device to prevent the filter plate from being blocked during operation and affecting the normal use of the device.

[0004] Although this patent can filter dust in the flue gas during the smoke exhaust process, it cannot purify the polluted gas in the flue gas, resulting in the direct discharge of the polluted gas into the external environment and polluting the environment. In addition, due to the large amount of heat in the flue gas, the heat will directly act on the impeller and the belt, accelerating the wear of the impeller and the belt and shortening the service life of the fan. Based on this, a centrifugal fire smoke exhaust fan is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a reasonably designed centrifugal fire smoke exhaust fan to solve the above problems.

[0006] The present invention achieves the above purpose through the following technical solutions:

[0007] A centrifugal fire smoke exhaust fan, including a base, a fan is fixedly connected to the top of the base, and further includes:

[0008] An air inlet pipe fixedly connected to the top of the base and fixedly communicating with the fan, a filtering mechanism is installed in the air inlet pipe, the filtering mechanism includes a fixing plate fixedly connected in the air inlet pipe, one side of the fixing plate is fixedly connected with a shaking spring, the end of the shaking spring is fixedly connected with a fixing frame, the fixing frame fits on the inner surface of the air inlet pipe, a filter screen is fixedly connected in the fixing frame, and a heat exchange pipe is fixedly connected to the filter screen;

[0009] A spraying mechanism fixedly communicating with the liquid inlet end of the heat exchange pipe, the spraying end of the spraying mechanism is located in the air inlet pipe and on the exhaust side of the filter screen;

[0010] A mixing mechanism arranged in the air inlet pipe, the mixing mechanism is located directly below the spraying mechanism;

[0011] A water removing mechanism fixedly connected in the air inlet pipe, the water removing mechanism drives the spraying mechanism to work through a driving mechanism, and the mixing mechanism is located between the filtering mechanism and the water removing mechanism.

[0012] As a further optimized scheme of the present invention, the spraying mechanism includes a piston cylinder fixedly connected to the top of the air inlet pipe, a water inlet pipe is fixedly communicated with the top of the piston cylinder, a piston plate is hermetically and slidably connected in the piston cylinder, a water injection pipe is fixedly communicated with the piston cylinder, one end of the water injection pipe away from the piston cylinder is fixedly connected with a connecting hose, the other end of the connecting hose away from the water injection pipe is fixedly communicated with the liquid inlet end of the heat exchange pipe, the liquid discharge end of the heat exchange pipe is fixedly communicated with a water delivery hose, the other end of the water delivery hose away from the heat exchange pipe is fixedly connected with a spraying box, and spraying holes are formed in the bottom of the spraying box.

[0013] As a further optimized scheme of the present invention, the water injection pipe penetrates through the air inlet pipe and is fixedly connected with the air inlet pipe, and the spraying box is fixedly connected to the inner top of the air inlet pipe.

[0014] As a further optimized scheme of the present invention, the mixing mechanism includes a connecting shaft fixedly connected to the fan, a hexagonal prism is fixedly connected to the end of the connecting shaft, a sleeve pipe is slidably connected to the outer surface of the hexagonal prism, a spiral plate is fixedly connected to the outer surface of the sleeve pipe, a magnetic ring is fixedly connected to one end of the sleeve pipe, and a cleaning rod is fixedly connected to the other end of the sleeve pipe.

[0015] As a further optimized scheme of the present invention, the spiral plate is arranged directly below the spraying box, the cleaning rod penetrates through the filter screen and is rotatably connected with the filter screen, and the cleaning end of the cleaning rod is attached to the air intake side of the filter screen.

[0016] As a further optimized solution of the present invention, the water removal mechanism includes a reciprocating plate threadedly connected to a connecting shaft through a reciprocating wire. One end of the reciprocating plate is fixedly connected to a first extrusion mesh. One side of the reciprocating plate is fixedly connected to a connecting rod. The end of the connecting rod is fixedly connected to a magnetic ring. A first fixed mesh is fixedly connected inside the air inlet pipe. A first sponge is fixedly connected between the first fixed mesh and the first extrusion mesh. The other end of the reciprocating plate is fixedly connected to a second extrusion mesh. A second fixed mesh is fixedly connected inside the air inlet pipe. A second sponge is fixedly connected between the second fixed mesh and the second extrusion mesh.

[0017] As a further optimized solution of the present invention, the reciprocating plate fits the inner surface of the air inlet pipe. Both the first extrusion mesh and the second extrusion mesh fit the inner surface of the air inlet pipe. The magnetic poles of the magnetic ring and the magnetic ring facing each other are opposite. The connecting shaft penetrates through the reciprocating plate.

[0018] As a further optimized solution of the present invention, a water suction pipe is fixedly communicated with the piston cylinder. A drain pipe is fixedly communicated with the piston cylinder. The water suction pipe penetrates through the top of the air inlet pipe and extends into the interior of the air inlet pipe. The water suction pipe is located on the exhaust side of the second fixed mesh.

[0019] As a further optimized solution of the present invention, the driving mechanism includes a piston rod fixedly connected to one side of the piston plate. The piston rod penetrates through the piston cylinder and is in sealed sliding connection with the piston cylinder. A return spring is sleeved on the outer surface of the piston rod. The two ends of the return spring are respectively fixedly connected to the piston plate and the piston cylinder. One end of the piston rod away from the piston plate is fixedly connected to a connecting rope. The end of the connecting rope away from the piston rod is fixedly connected to the reciprocating plate. A guiding pipe is fixedly connected to the air inlet pipe. The connecting rope slides through the guiding pipe.

[0020] As a further optimized solution of the present invention, the fan includes a casing fixedly connected to the top of the base. An air suction pipe is fixedly connected to one side of the casing. The air suction pipe is fixedly connected to the air inlet pipe. An exhaust pipe is fixedly connected to the top of the casing. A mounting seat is fixedly connected to the other side of the casing. A motor is installed on the top of the mounting seat. The output end of the motor is fixedly connected to a rotating shaft. The rotating shaft penetrates through the casing and is rotatably connected to the casing, and the rotating shaft extends into the interior of the casing. One end of the rotating shaft located inside the casing is fixedly connected to a wind wheel. The end of the connecting shaft is fixedly connected to the middle of the wind wheel.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. By the combined use of the filtering mechanism and the spraying mechanism, when the centrifugal fire-fighting fan is working, the filtering mechanism filters the smoke entering the air inlet pipe, so that the dust particles in the smoke are blocked. At the same time, the spraying mechanism works synchronously. When the spraying mechanism is working, clean water will flow through the heat exchange pipes in the filtering mechanism, so that the clean water absorbs the temperature of the smoke and reduces the temperature of the smoke, thereby reducing the probability of the wind wheel being corroded. The clean water after absorbing the temperature of the smoke will be sprayed into the smoke by the spraying mechanism. At this time, because the clean water has a temperature, the atomization efficiency of the clean water can be higher, so that the atomized clean water can more comprehensively absorb the polluting gases in the smoke, further reducing the probability of the wind wheel being corroded and protecting the environment well.

[0023] 2. Through the operation of the mixing mechanism, the mixing mechanism mixes the water mist sprayed by the spraying mechanism and the smoke, improving the probability of the water mist absorbing the polluting gases and fine dust in the smoke. And because the spiral plate is set in a mesh form, the spiral plate can better capture the dust wetted by the water mist, achieving the purpose of purifying the smoke. And during this process, the cleaning rod in the mixing mechanism will also clean the filter screen and the heat exchange pipes, ensuring the filtering efficiency of the filter screen for the smoke and the temperature reduction efficiency of the heat exchange pipes for the smoke. At the same time, it prevents the dust in the smoke from adhering to the outer surfaces of the filter screen and the heat exchange pipes for a long time, resulting in the corrosion of the filter screen and the heat exchange pipes, and protecting the filter screen and the heat exchange pipes well.

[0024] 3. Through the operation of the water removal mechanism, the water-insoluble substances in the smoke can be filtered and blocked. At the same time, the first sponge and the second sponge in the water removal mechanism absorb the moisture contained in the smoke after the water mist treatment, preventing the water mist dissolved with polluting gases and fine dust from directly acting on the wind wheel, resulting in the corrosion of the wind wheel, protecting the wind wheel well and extending the service life of the wind wheel.

[0025] 4. Through the operation of the water removal mechanism, the water removal mechanism drives the spiral plate to slide back and forth through the magnetic ring, expanding the mixing range of the spiral plate for the water mist and the smoke, further improving the mixing efficiency of the fine dust and the water-soluble polluting gases in the smoke. And when the spiral plate slides back and forth, it will synchronously drive the filter screen to move back and forth under the action of the jitter spring, thereby causing the filter screen and the spiral plate to shake at the same time, so that the particulate matter and droplets adhering to the outer surfaces of the filter screen and the spiral plate can fall off under the action of their own shaking, so that the filter screen and the spiral plate can adsorb more particulate matter and droplets, further improving the efficiency of smoke treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention;

[0027] Figure 2Schematic diagram of the three-dimensional back side with partial cross-section of the present invention;

[0028] Figure 3 is of the present invention Figure 2 Schematic diagram of the enlarged structure at position A in

[0029] Figure 4 Schematic diagram of the three-dimensional front side with partial cross-section of the present invention;

[0030] Figure 5 Schematic diagram of the front side cross-section of the present invention;

[0031] Figure 6 is of the present invention Figure 5 Schematic diagram of the enlarged structure at position B in

[0032] Figure 7 is of the present invention Figure 5 Schematic diagram of the enlarged structure at position C in

[0033] Figure 8 is of the present invention Figure 5 Schematic diagram of the enlarged structure at position D in

[0034] Figure 9 Schematic diagram of the top cross-section of the present invention;

[0035] Figure 10 is of the present invention Figure 9 Schematic diagram of the enlarged structure at position E in

[0036] Figure 11 Schematic diagram of the three-dimensional structure of the filtering mechanism, mixing mechanism and water removal mechanism of the present invention;

[0037] Figure 12 Schematic diagram of the three-dimensional structure of the filtering mechanism and water removal mechanism of the present invention;

[0038] Figure 13 Schematic diagram of the three-dimensional structure of the filtering mechanism of the present invention.

[0039] In the figure: 1, base; 2, casing; 3, suction air duct; 4, exhaust air duct; 5, mounting seat; 6, motor; 7, rotating shaft; 8, wind wheel; 9, intake air duct; 10, mixing mechanism; 1001, connecting shaft; 1002, hexagonal prism; 1003, sleeve pipe; 1004, spiral plate; 1005, magnetic ring; 1006, cleaning rod; 11, filtering mechanism; 1101, fixed frame; 1102, filter screen; 1103, heat exchange pipe; 1104, jitter spring; 1105, fixed plate; 12, water removal mechanism; 1201, reciprocating wire; 1202, reciprocating plate; 1203, first extrusion net; 1204, connecting rod; 1205, magnetic ring; 1206, first fixed net; 1207, first sponge; 1208, second extrusion net; 1209, second fixed net; 1210, second sponge; 13, spraying mechanism; 1301, piston cylinder; 1302, water inlet pipe; 1303, piston plate; 1304, water injection pipe; 1305, connecting hose; 1306, water delivery hose; 1307, spraying box; 1308, spraying holes; 1309, suction water pipe; 1310, drain pipe; 14, driving mechanism; 1401, piston rod; 1402, return spring; 1403, connecting rope; 1404, guiding pipe. Specific embodiments

[0040] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0041] Example: As Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 9 shown, a centrifugal fire smoke exhaust fan includes a base 1, an intake air duct 9 fixedly connected to the top of the base 1 and fixedly communicating with the suction air duct 3. A fan is fixedly connected to the top of the base 1. The fan includes a casing 2 fixedly connected to the top of the base 1. One side of the casing 2 is fixedly connected with a suction air duct 3. The suction air duct 3 is fixedly connected with the intake air duct 9. One side of the intake air duct 9 is hermetically hinged with a cover plate. The setting of the cover plate facilitates the cleaning of pollutants in the intake air duct 9. The top of the casing 2 is fixedly connected with an exhaust air duct 4. The other side of the casing 2 is fixedly connected with a mounting seat 5. The top of the mounting seat 5 is provided with a motor 6. The output end of the motor 6 is fixedly connected with a rotating shaft 7. The rotating shaft 7 penetrates through the casing 2 and is rotatably connected with the casing 2, and the rotating shaft 7 extends into the interior of the casing 2. One end of the rotating shaft 7 located inside the casing 2 is fixedly connected with a wind wheel 8.

[0042] Install the air inlet pipe 9 of the fan in the fire smoke exhaust passage. When in use, start the motor 6 so that the rotating shaft 7 drives the wind wheel 8 to rotate. As a result, the wind wheel 8 extracts flue gas through the air suction pipe 3 and the air inlet pipe 9, and makes the flue gas enter the machine shell 2, and finally discharges it to the external environment through the exhaust pipe 4.

[0043] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 11 , Figure 12 and Figure 13 As shown in

[0044] ,

[0045] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 and Figure 12 the centrifugal fire smoke exhaust fan further includes: a filtering mechanism 11 installed in the air inlet pipe 9. The filtering mechanism 11 is used to filter the dust in the flue gas. The filtering mechanism 11 includes a fixing plate 1105 fixedly connected in the air inlet pipe 9. One side of the fixing plate 1105 is fixedly connected with a shaking spring 1104. The end of the shaking spring 1104 is fixedly connected with a fixing frame 1101. The fixing frame 1101 is attached to the inner surface of the air inlet pipe 9. A filter screen 1102 is fixedly connected in the fixing frame 1101. A heat exchange tube 1103 is fixedly connected to the filter screen 1102. The heat exchange tube 1103 is used to absorb the heat of the flue gas.

[0044] When the wind wheel 8 rotates, the flue gas to be discharged will enter the air inlet pipe 9. The flue gas entering the air inlet pipe 9 first passes through the filter screen 1102, and the filter screen 1102 filters the dust in the flue gas, and the heat exchange tube 1103 absorbs the temperature of the flue gas, so that the temperature of the flue gas is reduced, preventing the flue gas with temperature from directly acting on the wind wheel 8, resulting in an accelerated corrosion rate of the wind wheel 8, providing good protection for the wind wheel 8 and extending the service life of the wind wheel 8.

[0045] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 and Figure 12As shown in the figure, the centrifugal fire smoke exhaust fan further includes: a mixing mechanism 10 disposed in the air inlet pipe 9. The mixing mechanism 10 is used to mix flue gas and clean water (not limited to clean water, and corresponding liquids can be selected according to actual situations to absorb substances in the flue gas). The mixing mechanism 10 is located between the filtering mechanism 11 and the water removal mechanism 12. The mixing mechanism 10 includes a connecting shaft 1001 fixedly connected to the middle of the impeller 8 at one end. The other end of the connecting shaft 1001 is fixedly connected with a hexagonal prism 1002. A sleeve 1003 is slidably connected to the outer surface of the hexagonal prism 1002. The outer surface of the hexagonal prism 1002 and the inner surface of the sleeve 1003 are adapted to each other. A spiral plate 1004 is fixedly connected to the outer surface of the sleeve 1003. The spiral plate 1004 is arranged in a mesh form. A magnetic ring 1005 is fixedly connected to one end of the sleeve 1003. A cleaning rod 1006 is fixedly connected to the other end of the sleeve 1003. The cleaning rod 1006 is arranged in a "T" shape. A brush is provided at the cleaning end of the cleaning rod 1006. The cleaning rod 1006 penetrates through the filter screen 1102 and is rotatably connected to the filter screen 1102. The cleaning end of the cleaning rod 1006 is in contact with the air inlet side of the filter screen 1102. The filter screen 1102 and the heat exchange tube 1103 are cleaned by the brush.

[0046] When the impeller 8 rotates, it will cause the connecting shaft 1001 to rotate, and then drive the hexagonal prism 1002 to rotate. Since the sleeve 1003 is slidably connected to the outer surface of the hexagonal prism 1002, the spiral plate 1004 will be driven to rotate through the sleeve 1003. During the rotation of the spiral plate 1004, fine dust in the flue gas is captured, realizing further purification of the flue gas. During this process, the cleaning rod 1006 will also clean the filter screen 1102 and the heat exchange tube 1103, ensuring the filtering efficiency of the filter screen 1102 for the flue gas and the temperature reduction efficiency of the heat exchange tube 1103 for the flue gas. At the same time, it prevents dust in the flue gas from adhering to the outer surfaces of the filter screen 1102 and the heat exchange tube 1103 for a long time, resulting in corrosion of the filter screen 1102 and the heat exchange tube 1103, and well protecting the filter screen 1102 and the heat exchange tube 1103.

[0047] As Figure 2 、 Figure 4 、 Figure 6 、 Figure 7 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, the water removal mechanism 12 is fixedly connected inside the air inlet pipe 9. The water removal mechanism 12 is used to remove moisture in the flue gas and drives the spraying mechanism 13 to work through the driving mechanism 14. The water removal mechanism 12 includes a reciprocating plate 1202 threadedly connected to the connecting shaft 1001 through a reciprocating wire 1201. The connecting shaft 1001 penetrates through the reciprocating plate 1202, and the reciprocating plate 1202 is in contact with the inner surface of the air inlet pipe 9. One end of the reciprocating plate 1202 is fixedly connected with a first extrusion mesh 1203. One side of the reciprocating plate 1202 is fixedly connected with a connecting rod 1204, and the end of the connecting rod 1204 is fixedly connected with a magnetic ring 1205. The magnetic ring 1205 has the opposite magnetic polarity to the opposite side of the magnetic ring 1005. A first fixing mesh 1206 is fixedly connected inside the air inlet pipe 9. A first sponge 1207 is fixedly connected between the first fixing mesh 1206 and the first extrusion mesh 1203. The other end of the reciprocating plate 1202 is fixedly connected with a second extrusion mesh 1208. Both the first extrusion mesh 1203 and the second extrusion mesh 1208 are in contact with the inner surface of the air inlet pipe 9. A second fixing mesh 1209 is fixedly connected inside the air inlet pipe 9. A second sponge 1210 is fixedly connected between the second fixing mesh 1209 and the second extrusion mesh 1208. A plurality of through holes are formed in both the first sponge 1207 and the second sponge 1210 to facilitate the passage of air flow. There is a distance between the first sponge 1207 and the second sponge 1210 and the bottom of the air inlet pipe 9. The driving mechanism 14 includes a piston rod 1401. A return spring 1402 is sleeved on the outer surface of the piston rod 1401. One end of the piston rod 1401 is fixedly connected with a connecting rope 1403. The end of the connecting rope 1403 away from the piston rod 1401 is fixedly connected with the reciprocating plate 1202. A guiding pipe 1404 is fixedly connected to the air inlet pipe 9, and the connecting rope 1403 slides through the guiding pipe 1404.

[0048] The flue gas after the fine dust is captured by the spiral plate 1004 will pass through the first sponge 1207 and the second sponge 1210. The first sponge 1207 and the second sponge 1210 will purify the flue gas again. When the connecting shaft 1001 rotates, it will drive the reciprocating wire 1201 to rotate, thereby causing the reciprocating plate 1202 to slide back and forth. When the reciprocating plate 1202 slides back and forth, it will cause the first extrusion net 1203 and the second extrusion net 1208 to reciprocally extrude the first sponge 1207 and the second sponge 1210. When the first extrusion net 1203 extrudes the first sponge 1207, the second extrusion net 1208 changes from the extrusion state to the release state for the second sponge 1210. In addition, during the process of the reciprocating plate 1202 sliding back and forth, it will cause the connecting rope 1403 to reciprocally pull the spraying mechanism 13 through the piston rod 1401, causing the spraying mechanism 13 to work under the reciprocating pull of the piston rod 1401 and the action of the return spring 1402. As a result, the spraying mechanism 13 injects room-temperature purified water into the heat exchange tube 1103 and intermittently sprays water mist into the flue gas. During this process, since the purified water absorbs the temperature of the flue gas, the atomization area of the water mist sprayed by the spraying mechanism 13 into the flue gas is larger, enabling the atomized purified water to more comprehensively absorb the polluting gases in the flue gas (the polluting gases include acidic gases, alkaline gases, organic compound gases with polarity or water solubility, and some heavy metal vapors (such as mercury vapor), etc. In addition, particulate matters such as dust and carbon black in the flue gas can also be captured by water), further reducing the probability of the wind wheel 8 being corroded, while providing good protection for the environment. And because the spiral plate 1004 is set in a mesh form, the spiral plate 1004 can better capture the water mist mixed with the gas and dust, achieving the purpose of purifying the flue gas. Moreover, the first sponge 1207 and the second sponge 1210 can also absorb the moisture contained in the flue gas after the water mist treatment, preventing the water mist dissolved with polluting gases and fine dust from directly acting on the wind wheel 8, resulting in the corrosion of the wind wheel 8, providing good protection for the wind wheel 8 and extending the service life of the wind wheel 8;

[0049] In addition, during the process of the reciprocating plate 1202 sliding back and forth, when the reciprocating plate 1202 moves towards the direction of the sleeve pipe 1003, it will cause the magnetic ring 1205 to approach the magnetic ring 1005, causing the magnetic ring 1205 and the magnetic ring 1005 to attract each other. When the reciprocating plate 1202 moves away from the sleeve pipe 1003, at this time, due to the attraction between the magnetic ring 1205 and the magnetic ring 1005, it will pull the sleeve pipe 1003 to move towards the direction of the reciprocating plate 1202 on the outer surface of the smoke hexagonal prism 1002 during rotation, thereby driving the spiral plate 1004 to move towards the direction of the reciprocating plate 1202, expanding the mixing range of the spiral plate 1004 for the water mist and the flue gas, and further improving the mixing efficiency of the fine dust and the water-soluble polluting gases in the flue gas;

[0050] Meanwhile, due to the movement of the sleeve pipe 1003, the filter screen 1102 and the fixed frame 1101 are pulled to move through the cleaning rod 1006, causing the jitter spring 1104 to be stretched. When the resilience force of the stretched jitter spring 1104 is greater than the magnetic attraction force between the magnetic ring 1205 and the magnetic ring 1005, at this time, the fixed frame 1101 and the filter screen 1102 will rebound under the action of the jitter spring 1104. Then, through the cleaning rod 1006, the sleeve pipe 1003 drives the spiral plate 1004 to move towards the direction where the filter screen 1102 is located, causing the filter screen 1102 and the spiral plate 1004 to shake simultaneously. As a result, the particulate matter and droplets adhering to the outer surfaces of the filter screen 1102 and the spiral plate 1004 can be detached under the action of their own shaking, enabling the filter screen 1102 and the spiral plate 1004 to adsorb more particulate matter and droplets, further improving the efficiency of flue gas treatment.

[0051] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 12 and Figure 13As shown in the figure, the spraying end of the spraying mechanism 13 is located in the air inlet pipe 9 and on the exhaust side of the filter screen 1102. The spraying mechanism 13 is used to spray purified water on the flue gas. The spraying mechanism 13 is located directly above the mixing mechanism 10. The spraying mechanism 13 includes a piston cylinder 1301 fixedly connected to the top of the air inlet pipe 9. A piston rod 1401 penetrates through the piston cylinder 1301 and is in sealed sliding connection with the piston cylinder 1301. The two ends of a return spring 1402 are respectively fixedly connected to a piston plate 1303 and the piston cylinder 1301. The top of the piston cylinder 1301 is fixedly communicated with a water inlet pipe 1302, and the water inlet pipe 1302 is connected to an external water source (the external water source is a prior art and is not shown in the figure and will not be elaborated in detail). A check valve is installed in the water inlet pipe 1302, so that the piston cylinder 1301 can only draw purified water through the water inlet pipe 1302. A piston plate 1303 is in sealed sliding connection in the piston cylinder 1301. The piston rod 1401 is fixedly connected to one side of the piston plate 1303. The piston cylinder 1301 is fixedly communicated with a water injection pipe 1304, and a check valve is installed in the water injection pipe 1304, so that the purified water in the piston cylinder 1301 can only be discharged through the water injection pipe 1304. The water injection pipe 1304 penetrates through the air inlet pipe 9 and is fixedly connected to the air inlet pipe 9. One end of a connecting hose 1305 away from the water injection pipe 1304 is fixedly communicated with the liquid inlet end of a heat exchange pipe 1103. The liquid discharge end of the heat exchange pipe 1103 is fixedly communicated with a water delivery hose 1306. One end of the water delivery hose 1306 away from the heat exchange pipe 1103 is fixedly connected to a spraying box 1307. The spraying box 1307 is fixedly connected to the inner top of the air inlet pipe 9. A spiral plate 1004 is arranged directly below the spraying box 1307. The bottom of the spraying box 1307 is provided with spraying holes 1308, and atomizing nozzles are installed in the spraying holes 1308. The piston cylinder 1301 is fixedly communicated with a water suction pipe 1309. A groove is opened at the bottom of the air inlet pipe 9. The water suction end of the water suction pipe 1309 is inserted into the groove, and the bottom of the air inlet pipe 9 is slightly inclined towards the groove to facilitate the flow of water into the groove. A check valve is installed in the water suction pipe 1309, so that the piston cylinder 1301 can only suck the water in the air inlet pipe 9 through the water suction pipe 1309. The piston cylinder 1301 is fixedly communicated with a drain pipe 1310. The drainage end of the drain pipe 1310 is fixedly communicated with a waste collection box (the waste collection box is a prior art and is not shown in the figure and will not be elaborated in detail). A check valve is installed in the drain pipe 1310, so that the water in the air inlet pipe 9 sucked by the piston cylinder 1301 can only be discharged through the drain pipe 1310. The water suction pipe 1309 penetrates through the top of the air inlet pipe 9 and extends into the air inlet pipe 9. The water suction pipe 1309 is located on the exhaust side of the second fixing net 1209.

[0052] During the reciprocating sliding of the reciprocating plate 1202, the connecting rope 1403 will reciprocally pull the piston plate 1303 through the piston rod 1401, causing the piston plate 1303 to slide back and forth along the inner surface of the piston cylinder 1301 under the reciprocating pulling of the piston rod 1401 and the action of the return spring 1402. As a result, the piston cylinder 1301 extracts clean water from the external water source through the water inlet pipe 1302. During the process of the piston cylinder 1301 extracting water from the external water source, the piston cylinder 1301 will discharge the water in the intake air pipe 9 that has been sucked into the waste collection box through the drain pipe 1310. When the piston cylinder 1301 discharges the clean water into the heat exchange pipe 1103 through the water injection pipe 1304 and the connecting hose 1305, the clean water entering the heat exchange pipe 1103 absorbs the temperature of the flue gas and then is discharged into the spray box 1307 through the water delivery hose 1306. It is sprayed into the flue gas filtered by the filter screen 1102 through the atomizing nozzles installed in the spray holes 1308. At this time, because the clean water has a temperature, the atomization efficiency of the clean water can be higher, enabling the atomized clean water to more comprehensively absorb the polluting gases in the flue gas, further reducing the probability of the wind wheel 8 being corroded and protecting the environment well. When the piston cylinder 1301 discharges the clean water, the piston cylinder 1301 will extract the water discharged by the first sponge 1207 and the second sponge 1210 squeezed by the first extrusion net 1203 and the second extrusion net 1208 through the water suction pipe 1309, realizing the reuse of the water absorbed by the first sponge 1207 and the second sponge 1210 and improving the utilization rate of resources.

[0053] The specific working principle of the present invention is as follows:

[0054] In use, start the motor 6 to drive the wind wheel 8 to rotate through the rotating shaft 7. Then, the wind wheel 8 extracts the flue gas through the suction pipe 3 and the intake air pipe 9. The flue gas entering the intake air pipe 9 first passes through the filter screen 1102, and the filter screen 1102 filters the dust in the flue gas. And the heat exchange pipe 1103 absorbs the temperature of the flue gas, reducing the temperature of the flue gas and preventing the flue gas with temperature from directly acting on the wind wheel 8, which may lead to an accelerated corrosion rate of the wind wheel 8, thus providing good protection for the wind wheel 8 and extending the service life of the wind wheel 8.

[0055] When the wind wheel 8 rotates, it will cause the connecting shaft 1001 to rotate, and then drive the hexagonal prism 1002 to rotate. Since the outer surface of the hexagonal prism 1002 is slidably connected with the sleeve pipe 1003, the spiral plate 1004 will be driven to rotate through the sleeve pipe 1003. During the rotation of the spiral plate 1004, fine dust in the flue gas is captured, realizing further purification of the flue gas. During this process, the cleaning rod 1006 will also clean the filter screen 1102 and the heat exchange tube 1103, ensuring the filtering efficiency of the filter screen 1102 for the flue gas and the temperature reduction efficiency of the heat exchange tube 1103 for the flue gas. At the same time, it prevents dust in the flue gas from adhering to the outer surfaces of the filter screen 1102 and the heat exchange tube 1103 for a long time, resulting in corrosion of the filter screen 1102 and the heat exchange tube 1103, and well protecting the filter screen 1102 and the heat exchange tube 1103;

[0056] The flue gas after the fine dust is captured by the spiral plate 1004 will pass through the first sponge 1207 and the second sponge 1210. The first sponge 1207 and the second sponge 1210 will purify the flue gas again. When the connecting shaft 1001 rotates, it will drive the reciprocating wire 1201 to rotate, thereby causing the reciprocating plate 1202 to slide back and forth. When the reciprocating plate 1202 slides back and forth, it will cause the first extrusion net 1203 and the second extrusion net 1208 to reciprocally extrude the first sponge 1207 and the second sponge 1210. And when the first extrusion net 1203 extrudes the first sponge 1207, the second extrusion net 1208 changes from the extrusion state to the release state for the second sponge 1210. In addition, during the process of the reciprocating plate 1202 sliding back and forth, it will cause the connecting rope 1403 to reciprocally pull the piston plate 1303 through the piston rod 1401, so that the piston plate 1303 slides back and forth along the inner surface of the piston cylinder 1301 under the reciprocating pull of the piston rod 1401 and the action of the return spring 1402, enabling the piston cylinder 1301 to extract the purified water from the external water source through the water inlet pipe 1302. During the process of the piston cylinder 1301 extracting the water from the external water source, the piston cylinder 1301 will discharge the water absorbed from the air inlet pipe 9 into the waste collection box through the drain pipe 1310. And since the spiral plate 1004 is set in a mesh form, the spiral plate 1004 can better capture the water mist mixed with gas and dust, achieving the purpose of purifying the flue gas. Moreover, the first sponge 1207 and the second sponge 1210 can also absorb the moisture contained in the flue gas after the water mist treatment, preventing the water mist dissolved with polluting gases and fine dust from directly acting on the wind wheel 8, resulting in the corrosion of the wind wheel 8, providing good protection for the wind wheel 8 and extending the service life of the wind wheel 8. When the piston cylinder 1301 discharges the purified water into the heat exchange tube 1103 through the water injection pipe 1304 via the connecting hose 1305, the purified water entering the heat exchange tube 1103 absorbs the temperature of the flue gas and will be discharged into the spray box 1307 through the water delivery hose 1306 and sprayed into the flue gas filtered by the filter screen 1102 through the spray holes 1308. At this time, because the purified water has a temperature, the atomization efficiency of the purified water can be higher, enabling the atomized purified water to more comprehensively absorb the polluting gases in the flue gas, further reducing the probability of the wind wheel 8 being corroded and protecting the environment well. When the piston cylinder 1301 discharges the purified water, at this time the piston cylinder 1301 will extract the water discharged by the first extrusion net 1203 and the second extrusion net 1208 squeezing the first sponge 1207 and the second sponge 1210 through the water suction pipe 1309, realizing the reuse of the water absorbed by the first sponge 1207 and the second sponge 1210 and improving the utilization rate of resources;

[0057] In addition, during the reciprocating sliding of the reciprocating plate 1202, when the reciprocating plate 1202 moves towards the sleeve pipe 1003, the magnetic ring 1205 will approach the magnetic ring 1005, causing the magnetic ring 1205 and the magnetic ring 1005 to attract each other. When the reciprocating plate 1202 moves away from the sleeve pipe 1003, since the magnetic ring 1205 and the magnetic ring 1005 are attracted to each other, the sleeve pipe 1003 will be pulled to move the outer surface of the hexagonal prism 1002 towards the reciprocating plate 1202 during rotation, thereby driving the spiral plate 1004 to move towards the reciprocating plate 1202, expanding the mixing range of the spiral plate 1004 for water mist and flue gas, and further improving the mixing efficiency of fine dust and water-soluble polluting gases in the flue gas;

[0058] At the same time, due to the movement of the sleeve pipe 1003, the cleaning rod 1006 is further used to pull the filter screen 1102 and the fixed frame 1101 to move, causing the jitter spring 1104 to be stretched. When the resilience force of the stretched jitter spring 1104 is greater than the magnetic attraction force between the magnetic ring 1205 and the magnetic ring 1005, the fixed frame 1101 and the filter screen 1102 will rebound under the action of the jitter spring 1104. Then, through the cleaning rod 1006, the sleeve pipe 1003 drives the spiral plate 1004 to move towards the filter screen 1102, causing the filter screen 1102 and the spiral plate 1004 to shake simultaneously, enabling the particulate matter and droplets adhering to the outer surfaces of the filter screen 1102 and the spiral plate 1004 to detach under the action of their own shaking, so that the filter screen 1102 and the spiral plate 1004 can adsorb more particulate matter and droplets, further improving the efficiency of flue gas treatment;

[0059] The treated flue gas will enter the casing 2 and finally be discharged to the external environment through the exhaust pipe 4.

[0060] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A centrifugal fire smoke exhaust fan, comprising a base (1), the top of the base (1) being fixedly connected to a fan, characterized in that: Also includes: An air inlet pipe (9) fixedly connected to the top of the base (1) and fixedly connected to the fan, wherein a filter mechanism (11) is installed in the air inlet pipe (9), wherein the filter mechanism (11) comprises a fixed plate (1105) fixedly connected to the air inlet pipe (9), a shaking spring (1104) fixedly connected to one side of the fixed plate (1105), a fixed frame (1101) fixedly connected to the end of the shaking spring (1104), the fixed frame (1101) being attached to the inner surface of the air inlet pipe (9), a filter screen (1102) fixedly connected to the inside of the fixed frame (1101), and a heat exchange pipe (1103) fixedly connected to the filter screen (1102); A spray mechanism (13) fixedly connected to the liquid inlet end of the heat exchange tube (1103), the spray end of the spray mechanism (13) being located in the air inlet pipe (9) and on the exhaust side of the filter screen (1102), the spray mechanism (13) comprising a piston cylinder (1301) fixedly connected to the top of the air inlet pipe (9), the top of the piston cylinder (1301) being fixedly connected to the water inlet pipe (1302), a piston plate (1303) being sealingly and slidably connected inside the piston cylinder (1301), and a water injection pipe (1304) being fixedly connected to the piston cylinder (1301). ), one end of the water injection pipe (1304) away from the piston cylinder (1301) is fixedly connected to a connecting hose (1305), one end of the connecting hose (1305) away from the water injection pipe (1304) is fixedly connected to the liquid inlet end of the heat exchange pipe (1103), the liquid discharge end of the heat exchange pipe (1103) is fixedly connected to a water delivery hose (1306), one end of the water delivery hose (1306) away from the heat exchange pipe (1103) is fixedly connected to a spray box (1307), and a spray hole (1308) is provided at the bottom of the spray box (1307); A mixing mechanism (10) is arranged in an air inlet pipe (9), the mixing mechanism (10) is located directly below the spray mechanism (13), the mixing mechanism (10) comprises a connecting shaft (1001) fixedly connected to the fan, the end of the connecting shaft (1001) is fixedly connected to a hexagonal prism (1002), the outer surface of the hexagonal prism (1002) is slidably connected to a sleeve tube (1003), the outer surface of the sleeve tube (1003) is fixedly connected to a spiral plate (1004), one end of the sleeve tube (1003) is fixedly connected to a magnetic ring (1005), and the other end of the sleeve tube (1003) is fixedly connected to a cleaning rod (1006); A dewatering mechanism (12) is fixedly connected to the air inlet pipe (9), the dewatering mechanism (12) drives the spraying mechanism (13) to operate via the driving mechanism (14), the mixing mechanism (10) is located between the filtering mechanism (11) and the dewatering mechanism (12), the dewatering mechanism (12) comprises a reciprocating plate (1202) threadedly connected to the connecting shaft (1001) via a reciprocating wire (1201), one end of the reciprocating plate (1202) is fixedly connected to a first extrusion net (1203), the A connecting rod (1204) is fixedly connected to one side of the reciprocating plate (1202), a magnetic ring (1205) is fixedly connected to the end of the connecting rod (1204), a first fixed net (1206) is fixedly connected inside the air inlet pipe (9), a first sponge (1207) is fixedly connected between the first fixed net (1206) and the first extrusion net (1203), the other end of the reciprocating plate (1202) is fixedly connected to a second extrusion net (1208), and the air inlet pipe (9) is fixedly connected to the first sponge (1207). The second sponge (1210) is fixedly connected to the second fixed net (1209) and the second squeezing net (1208). The driving mechanism (14) includes a piston rod (1401) fixedly connected to one side of the piston plate (1303). The piston rod (1401) passes through the piston cylinder (1301) and is sealed and slidably connected to the piston cylinder (1301). The outer surface of the piston rod (1401) is sleeved with a return spring (1402). The two ends of the positioning spring (1402) are respectively fixedly connected to the piston plate (1303) and the piston cylinder (1301); the end of the piston rod (1401) away from the piston plate (1303) is fixedly connected to a connecting rope (1403); the end of the connecting rope (1403) away from the piston rod (1401) is fixedly connected to the reciprocating plate (1202); the air inlet pipe (9) is fixedly connected to a guide pipe (1404), and the connecting rope (1403) slides through the guide pipe (1404).

2. A centrifugal fire smoke exhaust fan according to claim 1, characterized in that: The water injection pipe (1304) passes through the air inlet pipe (9) and is fixedly connected to the air inlet pipe (9), and the spray box (1307) is fixedly connected to the inner top of the air inlet pipe (9).

3. A centrifugal fire smoke exhaust fan according to claim 1, characterized in that: The spiral plate (1004) is arranged directly below the spray box (1307), the cleaning rod (1006) penetrates the filter screen (1102) and is rotatably connected to the filter screen (1102), and the cleaning end of the cleaning rod (1006) is in contact with the air inlet side of the filter screen (1102).

4. A centrifugal fire smoke exhaust fan according to claim 1, characterized in that: The reciprocating plate (1202) fits with the inner surface of the air inlet pipe (9), the first extruded net (1203) and the second extruded net (1208) both fit with the inner surface of the air inlet pipe (9), the magnetic ring (1205) and the magnetic ring (1005) have opposite magnetic properties on the opposite side, and the connecting shaft (1001) passes through the reciprocating plate (1202).

5. A centrifugal fire smoke exhaust fan according to claim 1, characterized in that: The piston cylinder (1301) is fixedly connected to a water suction pipe (1309), and the piston cylinder (1301) is fixedly connected to a drainage pipe (1310). The water suction pipe (1309) passes through the top of the air inlet pipe (9) and extends to the interior of the air inlet pipe (9). The water suction pipe (1309) is located on the exhaust side of the second fixed net (1209).

6. A centrifugal fire smoke exhaust fan according to claim 1, characterized in that: The fan comprises a casing (2) fixedly connected to the top of a base (1); a suction pipe (3) is fixedly connected to one side of the casing (2); the suction pipe (3) is fixedly connected to an air inlet pipe (9); an exhaust pipe (4) is fixedly connected to the top of the casing (2); a mounting base (5) is fixedly connected to the other side of the casing (2); a motor (6) is mounted on the top of the mounting base (5); an output end of the motor (6) is fixedly connected to a rotating shaft (7); the rotating shaft (7) passes through the casing (2) and is rotatably connected to the casing (2); the rotating shaft (7) extends to the inside of the casing (2); one end of the rotating shaft (7) located in the casing (2) is fixedly connected to a wind wheel (8); and the end of the connecting shaft (1001) is fixedly connected to the middle of the wind wheel (8).

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