Energy-saving centrifugal pump with anti-blocking structure

Abstract

The invention belongs to the technical field of centrifugal pumps, and discloses an energy-saving centrifugal pump with an anti-blocking structure. The energy-saving centrifugal pump with the anti-blocking structure comprises a centrifugal vacuum pump and a dust filtering component, the dust filtering component is arranged on the centrifugal vacuum pump, and the dust filtering component is communicated with an air inlet of the centrifugal vacuum pump and used for filtering smoke particles. According to the energy-saving centrifugal pump with the anti-blocking structure, through the design of the movable filtering component and the transmission component, the movable filtering component is in a dynamic filtering working state and makes uniform contact with smoke, the situation is different from the situation that a single part of a filter element makes contact with the smoke in the prior art, the air inlet position of the filter element is prevented from being rapidly blocked, and the service life of the filter element is prolonged. The service life of the filtering structure is prolonged, after waste gas is filtered through the movable filtering component, particles in the waste gas are filtered out, the situation that the centrifugal pump breaks down due to dirt can be obviously reduced, and the problems proposed in the background technology are solved.

Description

Technical Field

[0001] This invention relates to the technical field of centrifugal pumps, specifically to an energy-saving centrifugal pump with an anti-clogging structure. Background Technology

[0002] Centrifugal vacuum pumps play a crucial role in industries such as chemical, pharmaceutical, and electronics, used to extract gases to achieve specific vacuum environments. However, in chemical production, the extracted gases may contain impurities. Without integrated filtration, these impurity particles can enter the pump body, affecting its efficiency, accelerating the wear of internal parts, reducing the pump's lifespan, and even causing blockages. Therefore, most centrifugal vacuum pumps are equipped with activated carbon filters at the extraction end to filter impurity particles. However, under continuous operation, waste accumulates on the filter, especially near the exhaust gas inlet, affecting its normal operation and requiring significant time for cleaning or replacement. Therefore, we propose an energy-saving centrifugal pump with an anti-clogging structure. Summary of the Invention

[0003] The purpose of this invention is to provide an energy-saving centrifugal pump with an anti-clogging structure, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: an energy-saving centrifugal pump with an anti-clogging structure, comprising a centrifugal vacuum pump and a dust filter component, wherein the dust filter component is disposed on the centrifugal vacuum pump and is connected to the air inlet of the centrifugal vacuum pump to filter smoke particles. The dust filter component includes a housing, an inlet pipe, an outlet pipe, a movable filter element, a transmission component, and a waste discharge pipe. The housing is fixedly installed on the outer shell of the centrifugal vacuum pump via a connector. The inlet pipe is fixedly connected to one side of the upper surface of the housing, and the outlet pipe is fixedly connected to the end face of the housing away from the inlet pipe. The movable filter element is disposed inside the housing and connects the inlet pipe and the outlet pipe for gas filtration. A transmission component is provided on the other end face of the outlet pipe for driving the movable filter element. The bottom of the housing is fixedly connected to the waste discharge pipe.

[0005] Preferably, the movable filter component includes a rotating cylinder, a filter cylinder, an activated carbon filter element, an air outlet, a baffle plate, and a baffle ring. The rotating cylinder is movably connected to the inner wall of the housing via two bearings, and the rotating cylinder is coaxial with the housing. Several filter cylinders are fixedly connected to the inner wall of the rotating cylinder, and each filter cylinder is arranged in a ring with the rotating cylinder axis as a reference. An activated carbon filter element is inserted into the filter cylinder. An air outlet is opened on the side of the filter cylinder away from the inner wall of the rotating cylinder. The outer wall of each filter cylinder away from the air outlet pipe is fixedly connected via a baffle plate. The baffle ring is fixedly connected to the inner wall of the housing, and the baffle ring contacts the end of the rotating cylinder away from the air outlet pipe to protect the bearings. The feed inlet of the waste discharge pipe is opposite to the air inlet pipe, and a switch valve is installed on the waste discharge pipe.

[0006] Preferably, the movable filter component further includes an outer ring, an electric push rod, an inner ring, a connecting rod, a push plate, and a folded tube. Two electric push rods are fixedly installed on the other end face of the housing and symmetrical with reference to the air outlet pipe. The outer ring is located inside the housing. The output end of the electric push rod extends into the housing and is fixedly connected to one side of the outer ring. The inner ring is movably connected to the outer ring through a bearing. The push plate is fixedly connected to the position of the filter cartridge on the inner ring through a connecting rod. Each push plate is inserted into the corresponding filter cartridge to push the activated carbon filter element. The space formed between the filter cartridges is connected to the middle hole of the inner ring through the folded tube.

[0007] Preferably, the transmission components include a reducer, a transmission element, a crushing disc, a transmission shaft, a driven wheel one, and a driven wheel two. The reducer is fixedly mounted on the end face of the housing away from the exhaust pipe by a bracket. The input shaft of the reducer is equipped with a transmission element, and the output shaft of the reducer extends into the housing and is fixedly connected to the crushing disc. The transmission shaft is movably connected to the cover ring. Driven wheels one are mounted on the transmission shaft on both sides of the cover ring. Driven wheels two are mounted on the outer wall of the drum. The two driven wheels one are respectively connected to driven wheels two and the crushing disc.

[0008] Preferably, the crushing disc includes a turntable and crushed blocks, with the middle of one side of the turntable fixedly connected to the output shaft of the reducer, and the other end of the turntable fixedly connected to uniformly distributed crushed blocks.

[0009] Preferably, the broken pieces are irregularly shaped, and the two driven wheels have different diameters.

[0010] Preferably, a cover is installed on the upper surface of the housing, and a feeding hole is provided on the rotating drum at the position corresponding to the filter cylinder for the installation of the activated carbon filter element. The feeding hole is connected to the inside of the filter cylinder and is located on the side of the rotating drum away from the shielding ring.

[0011] Preferably, a groove is provided on the inner wall of the filter cylinder, and a slider is slidably connected in the groove. One side of the slider is movably connected to the inner wall of the groove through a limiting spring. A hook is fixedly connected to the side of the slider away from the bottom wall of the groove, and the slider is located in the groove on the side away from the shielding ring.

[0012] By adopting the aforementioned technical solution, the beneficial effects of the present invention are: 1. This energy-saving centrifugal pump with an anti-clogging structure, through the design of movable filter components and transmission components, enables the movable filter components to be in a dynamic filtration working state, making them evenly contacted with the exhaust gas. This differs from the existing technology where only one part of the filter element is in contact with the exhaust gas, preventing the air inlet of the filter element from being quickly blocked, extending the service life of the filter structure. After the exhaust gas passes through the movable filter components, the particles inside are filtered out, which can significantly reduce the occurrence of centrifugal pump failure due to dirt and solve the problems mentioned in the background technology.

[0013] 2. This energy-saving centrifugal pump with an anti-clogging structure utilizes a transmission component in conjunction with a movable filter component to drive the filter element towards the crushing disc. The end of the filter element that is in direct contact with the exhaust gas and where the channel is blocked can be crushed by the crushing disc. After clearing the blockage, the filter element can be restored to its function, ensuring that this filtration structure can operate efficiently for a long time and reducing the frequency of maintenance. It also provides a feeding window for activated carbon filter elements, making it easy to operate and readily available. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the dust filter component of the present invention; Figure 3 This is a front view of the dust filter component of the present invention; Figure 4 For the present invention Figure 3 AA section diagram; Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle; Figure 6 This is a cross-sectional view of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle; Figure 8 This is a schematic diagram of the connection structure between the rotating drum and the filter drum of the present invention.

[0015] In the diagram: 1. Centrifugal vacuum pump; 2. Dust filter component; 21. Housing; 22. Inlet pipe; 23. Outlet pipe; 24. Movable filter component; 241. Rotary drum; 242. Filter cartridge; 243. Activated carbon filter element; 244. Outlet port; 245. Baffle plate; 246. Baffle ring; 247. Outer ring; 248. Electric push rod; 249. Inner ring; 2410. Connecting rod; 2411. Push plate; 2412. Folded tube; 25. Transmission component; 251. Reducer; 252. Transmission component; 253. Crushing disc; 2531. Rotary disc; 2532. Crushed block; 254. Drive shaft; 255. Driven wheel two; 256. Driven wheel one; 26. Waste discharge pipe; 3. Housing cover; 4. Hook; 5. Feeding hole; 6. Slide groove; 7. Slider; 8. Limit spring. Detailed Implementation

[0016] Please see Figure 1-8 The present invention provides a technical solution: an energy-saving centrifugal pump with an anti-clogging structure, including a centrifugal vacuum pump 1 and a dust filter component 2. The dust filter component 2 is disposed on the centrifugal vacuum pump 1 and is connected to the air inlet of the centrifugal vacuum pump 1 (not shown in the figure) to filter dust particles. The dust filter component 2 includes a housing 21, an inlet pipe 22, an outlet pipe 23, a movable filter element 24, a transmission component 25, and a waste discharge pipe 26. The housing 21 is fixedly installed on the outer shell of the centrifugal vacuum pump 1 via a connector. The inlet pipe 22 is fixedly connected to one side of the upper surface of the housing 21. The outlet pipe 23 is fixedly connected to one end face of the housing 21 away from the inlet pipe 22. The movable filter element 24 is disposed inside the housing 21 and connects the inlet pipe 22 and the outlet pipe 23 for gas filtration. The other end face of the outlet pipe 23 is provided with a transmission component 25 for driving the movable filter element 24. The bottom of the housing 21 is fixedly connected to the waste discharge pipe 26.

[0017] The movable filter component 24 includes a rotating cylinder 241, a filter cartridge 242, an activated carbon filter element 243, an air outlet 244, a baffle plate 245, and a baffle ring 246. The rotating cylinder 241 is movably connected to the inner wall of the housing 21 via two bearings, and the rotating cylinder 241 is coaxial with the housing 21. Several filter cartridges 242 are fixedly connected to the inner wall of the rotating cylinder 241, and the filter cartridges 242 are arranged in a ring with the axis of the rotating cylinder 241 as a reference. Filter cartridges 242 are inserted into the filter cartridges. There is an activated carbon filter element 243. An air outlet 244 is opened on the side of the filter cylinder 242 away from the inner wall of the rotating cylinder 241. The outer wall of each filter cylinder 242 away from the air outlet pipe 23 is fixedly connected by a baffle plate 245. A baffle ring 246 is fixedly connected to the inner wall of the housing 21, and the baffle ring 246 contacts the end of the rotating cylinder 241 away from the air outlet pipe 23 to protect the bearing. The feed port of the waste discharge pipe 26 is opposite to the air inlet pipe 22, and a switch valve is installed on the waste discharge pipe 26.

[0018] The movable filter component 24 also includes an outer ring 247, an electric push rod 248, an inner ring 249, a connecting rod 2410, a push plate 2411, and a folded tube 2412. Two electric push rods 248 are fixedly installed on the other end face of the housing 21 and are symmetrical with reference to the air outlet pipe 23. The outer ring 247 is located inside the housing 21. The output end of the electric push rod 248 extends into the housing 21 and is fixedly connected to one side of the outer ring 247. The inner ring 249 is movably connected to the outer ring 247 through a bearing. The push plate 2411 is fixedly connected to the position of the inner ring 249 corresponding to the filter cartridge 242 through the connecting rod 2410. Each push plate 2411 is inserted into the corresponding filter cartridge 242 to push the activated carbon filter element 243. The space formed between each filter cartridge 242 is connected to the middle hole of the inner ring 249 through the folded tube 2412.

[0019] The transmission component 25 includes a reducer 251, a transmission element 252, a crushing disc 253, a transmission shaft 254, a driven wheel 256 and a driven wheel 255. The reducer 251 is fixedly mounted on the end face of the housing 21 away from the exhaust pipe 23 by a bracket. The transmission element 252 is installed on the input shaft of the reducer 251. The output shaft of the reducer 251 extends into the housing 21 and is fixedly connected to the crushing disc 253. The transmission shaft 254 is movably connected to the shielding ring 246. The movable connection structure adopts bearings. Driven wheels 256 are installed on the transmission shaft 254 and on both sides of the shielding ring 246. Driven wheels 255 are installed on the outer wall of the rotating drum 241. The two driven wheels 256 are respectively connected to the driven wheel 255 and the crushing disc 253.

[0020] It should be noted that the selection of reducer 251 should be combined with the speed of the corresponding centrifugal vacuum pump. The speed of common water ring centrifugal vacuum pumps is usually 500-3000 r / min. A multi-stage planetary gear reducer can be selected to control the speed output at 5-10 r / min for optimal results.

[0021] The crushing disc 253 includes a turntable 2531 and crushed blocks 2532. The middle part of one side of the turntable 2531 is fixedly connected to the output shaft of the reducer 251, and the other end of the turntable 2531 is fixedly connected to the evenly distributed crushed blocks 2532.

[0022] The crushed block 2532 is irregularly shaped and can be made of metal shavings or abrasive particles. It is fixed to the turntable 2531 by adhesive bonding. The two driven wheels 256 have different diameters. The purpose of the different diameters is to allow the turntable 2531 to drive the drum 241 while the drum 241 and the turntable 2531 rotate at different speeds. Thus, when the activated carbon filter element 243 comes into contact with the turntable 2531, the crushed block 2532 can move relative to it to achieve the purpose of crushing. Preferably, the driven wheel 256 on the side closer to the turntable 2531 has a larger diameter, so that the drum 241 can achieve a lower rotation speed and avoid structural damage.

[0023] The upper surface of the housing 21 is fitted with a cover 3. The rotating drum 241 is provided with a feeding hole 5 at the position corresponding to the filter cylinder 242 for the installation of the activated carbon filter element 243. The feeding hole 5 is connected to the inside of the filter cylinder 242 and is located on the side of the rotating drum 241 away from the shielding ring 246.

[0024] It should be noted that you should refer to [link / reference]. Figure 6 During equipment operation, to facilitate the installation of activated carbon filter element 243, there is more than one activated carbon filter element 243 in a single filter cartridge 242. The activated carbon filter element 243 adopts a columnar structure. When breaking the activated carbon filter element 243, the next activated carbon filter element 243 should push the previous activated carbon filter element 243 to avoid the exhaust gas being discharged directly through the exhaust hole 244 after a single activated carbon filter element 243 is consumed. Furthermore, the pusher plate 2411 can push adjacent activated carbon filter elements 243 together without affecting the filtration of exhaust gas.

[0025] A groove 6 is provided on the inner wall of the filter cartridge 242. A slider 7 is slidably connected in the groove 6. One side of the slider 7 is movably connected to the inner wall of the groove 6 through a limiting spring 8. A hook 4 is fixedly connected to the side of the slider 7 away from the bottom wall of the groove 6. The slider 7 is located in the groove 6 on the side away from the shielding ring 246.

[0026] It should be noted that the design of hook 4 is based on the distance between the end face of filter cylinder 242 and turntable 2531. When the end face of activated carbon filter element 243 is broken, only activated carbon filter element 243 that is on the movement trajectory of the breaking block 2532 will be broken. After the breaking is completed, the activated carbon filter element 243 that has extended out of filter cylinder 242 needs to be brought back by the rebound of limit spring 8. Therefore, the length and position of slide 6 should be selected according to actual needs to ensure the effect is achieved.

[0027] When this equipment is in use, the reducer 251 is driven by the motor through the transmission component 252, and the centrifugal vacuum pump 1 works to extract the waste gas. The waste gas enters the housing 21 through the inlet pipe 22, is filtered by the activated carbon filter element 243, and is discharged from the filter cartridge 242 through the outlet hole 244. Then, it is discharged from the housing 21 through the outlet pipe 23 through the folded pipe 2412 and enters the inlet of the centrifugal vacuum pump 1. During this process, the reducer 251 drives the turntable 2531 to rotate, and drives the drum 241 to rotate through the transmission shaft 254, so that the drum 241 and the turntable 2531 achieve differential rotation. The activated carbon filter element 243 in each filter cylinder 242 passes through the position of the air inlet pipe 22 in sequence, which avoids the single activated carbon filter element 243 from being close to the air inlet pipe 22 for a long time and being quickly blocked. In addition, with the position change of the activated carbon filter element 243 during the switching process, the high-speed exhaust gas entering through the air inlet pipe 22 can blow off the waste accumulated on the activated carbon filter element 243. When it is necessary to break up the blockage at the end of the activated carbon filter element 243 (the timing of breaking should be adjusted according to the actual working conditions; timed operation is sufficient, i.e., how often the filter element becomes blocked under the current working conditions), the electric push rod 248 pushes the outer ring 247 towards the rotating drum 241. At this time, the push disc 2411 pushes the activated carbon filter element 243 towards the breaking disc 253. During this process, the hook 4 will be hooked on the outside of the activated carbon filter element 243, causing the slider 7 to follow the movement in the slide groove 6 until the limit spring 8 is compressed to its limit, and the activated carbon filter element 243 continues to be pushed towards the filter cylinder. 242 is pushed outward, and hook 4 scrapes a groove on activated carbon filter element 243. Activated carbon filter element 243, which extends out of filter cylinder 242, contacts crushing disc 253 and is crushed by crushing block 2532, exposing the unblocked parts inside activated carbon filter element 243. After crushing is completed, push disc 2411 retracts, and limit spring 8 resets, driving activated carbon filter element 243 back into filter cylinder 242 via hook 4. Waste generated from crushing enters waste discharge pipe 26. Waste discharge pipe 26 needs to be cleaned regularly. Open the switch valve on it, and the positive pressure inside housing 21 can blow out the crushed filter element and filtered waste. When the activated carbon filter element 243 needs to be replaced (the replacement timing is adjusted according to the working conditions. Based on the above-mentioned crushing rhythm, the activated carbon filter element 243 can be added. For the staff, the replacement can be carried out during normal shifts and will not increase the workload too much), open the shell cover 3. The electric push rod 248 drives the push plate 2411 to retract, so that the feeding hole 5 is located on the side of the push plate 2411 close to the shielding ring 246. Take the new activated carbon filter element 243 and put the activated carbon filter element 243 into each filter cylinder 242 as the rotating drum 241 rotates. After the placement of the activated carbon filter element 243 is completed, close the shell cover 3.

[0028] The operation of the electronic equipment mentioned above only involves the opening and closing of the electric push rod 248 and its working process. There is no complex coordination process of various electrical components. For those skilled in the art, the control of the relevant electronic equipment is a conventional choice of known technology and will not be elaborated upon.

[0029] Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy-saving centrifugal pump with an anti-clogging structure, comprising a centrifugal vacuum pump, characterized in that: Also includes: A dust filter component is mounted on a centrifugal vacuum pump and is connected to the air inlet of the centrifugal vacuum pump to filter dust particles. The dust filter component includes a housing, an inlet pipe, an outlet pipe, a movable filter element, a transmission component, and a waste discharge pipe. The housing is fixedly installed on the outer shell of the centrifugal vacuum pump via a connector. The inlet pipe is fixedly connected to one side of the upper surface of the housing, and the outlet pipe is fixedly connected to the end face of the housing away from the inlet pipe. The movable filter element is disposed inside the housing and connects the inlet pipe and the outlet pipe for gas filtration. A transmission component is provided on the other end face of the outlet pipe for driving the movable filter element. The bottom of the housing is fixedly connected to the waste discharge pipe.

2. The energy-saving centrifugal pump with an anti-clogging structure according to claim 1, characterized in that: The movable filter component includes a rotating drum, filter cylinders, activated carbon filter elements, air outlets, baffles, and baffle rings. The rotating drum is movably connected to the inner wall of the housing via two bearings, and the rotating drum is coaxial with the housing. Several filter cylinders are fixedly connected to the inner wall of the rotating drum, and the filter cylinders are arranged in a ring with the rotating drum axis as a reference. Activated carbon filter elements are inserted into the filter cylinders. Air outlets are opened on the side of the filter cylinder away from the inner wall of the rotating drum. The outer wall of each filter cylinder away from the air outlet is fixedly connected via a baffle. The baffle ring is fixedly connected to the inner wall of the housing, and the baffle ring contacts the end of the rotating drum away from the air outlet to protect the bearings. The feed inlet of the waste discharge pipe is opposite to the air inlet pipe, and a switch valve is installed on the waste discharge pipe.

3. An energy-saving centrifugal pump with an anti-clogging structure according to claim 2, characterized in that: The movable filter component also includes an outer ring, an electric push rod, an inner ring, a connecting rod, a push plate, and a folded tube. Two electric push rods are fixedly installed on the other end face of the housing and symmetrical with reference to the air outlet pipe. The outer ring is located inside the housing. The output end of the electric push rod extends into the housing and is fixedly connected to one side of the outer ring. The inner ring is movably connected to the outer ring through a bearing. The push plate is fixedly connected to the position of the filter cartridge on the inner ring through a connecting rod. Each push plate is inserted into the corresponding filter cartridge to push the activated carbon filter element. The space formed between the filter cartridges is connected to the middle hole of the inner ring through the folded tube.

4. An energy-saving centrifugal pump with an anti-clogging structure according to claim 3, characterized in that: The transmission components include a speed reducer, a transmission element, a crushing disc, a transmission shaft, driven wheel one, and driven wheel two. The speed reducer is fixedly mounted on the end face of the housing away from the exhaust pipe by a bracket. The transmission element is installed on the input shaft of the speed reducer, and the output shaft of the speed reducer extends into the housing and is fixedly connected to the crushing disc. The transmission shaft is movably connected to the cover ring. Driven wheel one is installed on the transmission shaft and on both sides of the cover ring. Driven wheel two is installed on the outer wall of the drum. The two driven wheels one are respectively connected to driven wheel two and the crushing disc.

5. An energy-saving centrifugal pump with an anti-clogging structure according to claim 4, characterized in that: The crushing disc includes a turntable and crushed blocks. The middle part of one side of the turntable is fixedly connected to the output shaft of the reducer, and the other end of the turntable is fixedly connected to uniformly distributed crushed blocks.

6. An energy-saving centrifugal pump with an anti-clogging structure according to claim 5, characterized in that: The broken pieces are irregularly shaped, and the two driven wheels have different diameters.

7. An energy-saving centrifugal pump with an anti-clogging structure according to claim 6, characterized in that: The upper surface of the housing is fitted with a cover, and a feeding hole is provided on the rotating drum at the position corresponding to the filter cylinder for the installation of the activated carbon filter element. The feeding hole is connected to the inside of the filter cylinder and is located on the side of the rotating drum away from the shielding ring.

8. An energy-saving centrifugal pump with an anti-clogging structure according to claim 3, characterized in that: The filter cartridge has a groove on its inner wall, and a slider is slidably connected in the groove. One side of the slider is movably connected to the inner wall of the groove through a limiting spring. A hook is fixedly connected to the side of the slider away from the bottom wall of the groove. The slider is located in the groove on the side away from the shielding ring.

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