Energy-saving anti-blocking centrifugal pump

Abstract

The invention is suitable for the technical field of centrifugal vacuum pumps, and provides an energy-saving anti-blocking centrifugal pump which comprises a centrifugal vacuum pump body. A filtering part is arranged at the exhaust end of the centrifugal vacuum pump body; the filtering part comprises a fixed part, a lifting part and a retainer; the fixing piece is in sliding fit with the lifting piece; the retainer is rotationally arranged between the fixed part and the lifting part; the air inlet pipe, the air outlet pipe, the upper U-shaped pipe, the lower U-shaped pipe and the storage pipe are sequentially connected in a staggered mode to form a serpentine channel. According to the device, the retainer is controlled to rotate between the fixed part and the lifting part, the flue gas entering path is adjusted, so that each group of columnar activated carbon can be in direct contact with the flue gas, the replacement frequency of the columnar activated carbon is reduced, waste is reduced, cost is saved, a traditional structure arrangement of a multi-layer filter element plate is replaced, and the practicability is high. The occupied space is reduced, meanwhile, the contact path of the flue gas and the columnar activated carbon is prolonged, and the filtering effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal vacuum pumps, and more specifically, it relates to an energy-saving and anti-blocking centrifugal pump. Background Art

[0002] In many industrial fields, such as the chemical, pharmaceutical, and electronics industries, centrifugal vacuum pumps play a crucial role in extracting gases to obtain a specific vacuum environment. However, in chemical production, the extracted gas may contain impurities. Without an integrated filtration function, impurity particles will enter the pump body, accelerating the wear of internal parts, reducing the service life of the pump, and even causing blockage failures. Therefore, during the use of centrifugal vacuum pumps, filters for filtering impurity particles are mostly provided at their air extraction ends.

[0003] However, in order to improve the filtration effect, a multi-layer filter element structure is mostly used in the prior art. However, after the filter element has been used for a long time for filtration, the filtration effect of its first contact end with the flue gas will gradually decrease, gradually affecting the overall filtration effect of the filter element. Therefore, generally, when the filtration effect of the first contact end of the filter element with the flue gas gradually decreases or fails, a new filter element needs to be replaced, but the other half of the original filter element can still be used normally, resulting in waste; at the same time, when the centrifugal vacuum pump extracts high-temperature flue gas, the high-temperature flue gas directly enters the centrifugal vacuum pump and causes damage to it. Summary of the Invention

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide an energy-saving and anti-blocking centrifugal pump. By controlling the rotation of the cage between the fixing member and the lifting member, the path of the flue gas entering is adjusted, so that each group of columnar activated carbon can be in direct contact with the flue gas, improving the filtration effect while reducing the replacement frequency of the columnar activated carbon, reducing waste, and saving costs.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An energy-saving anti-blocking centrifugal pump, comprising a centrifugal vacuum pump body; a filtering part is arranged at the air extraction end of the centrifugal vacuum pump body; the filtering part includes a fixing part, a lifting part and a retaining frame; the fixing part is slidably matched with the lifting part; the retaining frame is rotatably arranged between the fixing part and the lifting part; the fixing part includes a bottom cover; the lifting part includes a top cover; a plurality of connecting pipes are fixedly penetrated through the surfaces of the top cover and the bottom cover; an upper U-shaped pipe is fixed between adjacent two connecting pipes on the top cover; an air inlet pipe and an air outlet pipe are respectively fixed on adjacent two connecting pipes on the bottom cover; a lower U-shaped pipe is fixed between the remaining adjacent two connecting pipes on the bottom cover; the retaining frame includes two connecting discs which are respectively rotatably matched with the bottom cover and the top cover; a plurality of storage pipes are uniformly penetrated and communicated between the two connecting discs; the air inlet pipe, the air outlet pipe, the upper U-shaped pipe, the lower U-shaped pipe and the storage pipe are sequentially and alternately connected to form a serpentine channel; a columnar activated carbon is placed inside the storage pipe.

[0007] The present invention is further arranged as follows: a lifting plate is fixed on the surface of the top cover; a threaded hole is formed on the surface of the lifting plate, and guide holes are symmetrically formed on both sides of the threaded hole on its surface; a support plate is fixed on the surface of the bottom cover; a screw rod which is in threaded rotational fit with the threaded hole is rotatably arranged on the surface of the support plate, and guide rods which are in sliding fit with the guide holes are symmetrically fixed on both sides of the screw rod on its surface; a plurality of fastening nuts are screwed on the screw rod.

[0008] The present invention is further arranged as follows: a plurality of insertion blocks are uniformly fixed on the outer peripheral side surface of the connecting disc located below; a fixing ring is fixed on the bottom surface of the bottom cover; a rotating ring is rotatably arranged on the surface of the fixing ring; a first annular groove is formed on the surface of the fixing ring; a second annular groove is formed on the inner peripheral side surface of the first annular groove; an annular rail which is in rotational fit with the first annular groove is fixed on the bottom surface of the rotating ring; a limiting rail which is in rotational fit with the second annular groove is fixed on the outer peripheral side surface of the annular rail; a plurality of insertion slots which are in insertion fit with the corresponding insertion blocks are uniformly formed on the inner peripheral side surface of the rotating ring.

[0009] The present invention is further arranged as follows: a toothed ring is fixed on the outer peripheral side surface of the rotating ring; a C-shaped plate is fixed on the peripheral side surface of the fixing ring; a servo motor is fixed on the inner top of the C-shaped plate; a gear which is in meshing fit with the toothed ring is fixed on the output end of the servo motor; a controller is fixedly installed on the side surface of the C-shaped plate; the output end of the controller is electrically connected to the servo motor.

[0010] The present invention is further arranged as follows: a plurality of sealing grooves which are coaxial with the corresponding storage pipes are uniformly formed on the inner bottom surface of the connecting disc; a plurality of annular cavities are formed on the bottom of the top cover and the top of the bottom cover; a plurality of communication grooves for communicating adjacent two annular cavities are uniformly formed inside the top cover and the bottom cover; a high-temperature resistant elastic diaphragm is arranged in the annular cavity; the high-temperature resistant elastic diaphragm in the inflated and expanded state is adapted to the sealing groove.

[0011] The present invention is further configured as follows: a piston cylinder is provided above the top cover; a first air pipe that penetrates through the top cover and extends into the communication groove is communicated and arranged at the bottom of the piston cylinder; branch pipes are communicated and arranged on the peripheral side surface of the first air pipe; a second air pipe that penetrates through the bottom surface of the bottom cover and extends into the sealing groove; a hose is connected between the second air pipe and the branch pipes; a piston plate is slidably arranged inside the piston cylinder; a piston rod is fixed on the surface of the piston plate; vertical rods are symmetrically fixed on the surface of the top cover; an iron plate that is slidably matched with the two vertical rods is fixed at the end of the piston rod; a baffle is fixed between the ends of the two vertical rods; a tension spring sleeved on the vertical rod is fixedly connected between the iron plate and the top cover; an electromagnetic chuck electrically connected to the output end of the controller is installed on the bottom surface of the baffle.

[0012] The present invention is further configured as follows: a cold water tank is provided in front of the air extraction end of the centrifugal vacuum pump body; an air extraction pipe and a delivery pipe are symmetrically and fixedly penetrated through the peripheral side surface of the cold water tank; the air extraction pipe is fixedly communicated with the air extraction end of the centrifugal vacuum pump body; a T-shaped plate is fixed on the inner bottom surface of the cold water tank; a plug-in frame that is plugged and matched with the T-shaped plate is fixed on the bottom surface of the support plate; the T-shaped plate and the plug-in frame are fixedly connected by a fastening bolt; a water inlet pipe and a drain pipe are sequentially penetrated through the peripheral side surface of the cold water tank.

[0013] The present invention is further configured as follows: heat conduction grooves are uniformly formed on the outer peripheral side surface of the storage pipe; a sliding part is slidably arranged between the storage pipes; the sliding part includes a connecting ring; a plurality of positioning rings coaxial with the corresponding storage pipe are uniformly fixed on the inner peripheral side surface of the connecting ring; the inside of the positioning ring is hollow, and a plurality of water outlet holes are uniformly formed on its inner wall; a sponge ring slidably matched with the heat conduction groove is arranged on the inner wall of the positioning ring; an extension pipe is fixedly communicated with the outer peripheral side surface of the positioning ring.

[0014] The present invention is further configured as follows: an exhaust pipe is fixedly communicated with the exhaust end of the centrifugal vacuum pump body; sliding rods are symmetrically fixed on the top of the exhaust pipe; a discharge pipe is fixed between the ends of the two sliding rods; a sliding pipe is slidably arranged between the two sliding rods; corrugated pipes are communicated and arranged between the two ends of the sliding pipe and the exhaust pipe and the discharge pipe respectively; an installation block is fixedly installed inside the exhaust pipe; a rotating shaft is rotatably penetrated through the surface of the installation block; an impeller is fixed at the bottom end of the rotating shaft, and a reciprocating lead screw is fixed at the top of the rotating shaft; an ear plate is fixed on the inner wall of the sliding pipe; a sliding sleeve adapted to the reciprocating lead screw is fixed at the end of the ear plate.

[0015] The present invention is further configured such that: an extension plate is fixed to the peripheral side surface of the sliding tube; an arc plate is fixed to the end of the extension plate; an arc groove is formed in the inner wall of the arc plate; a guide ring that is rotationally engaged with the arc groove is fixed to the outer peripheral side surface of the connection ring; a U-shaped rod is fixed to the surface of the positioning ring; a plurality of avoidance grooves for the free passage of the U-shaped rod are uniformly formed in the inner wall of the upper connection disk; a piston block is fixed to the bottom end of the U-shaped rod; a plurality of piston tubes that are slidably engaged with the corresponding piston blocks are uniformly fixed to the surface of the lower connection disk; a water extraction pipe that extends into the interior of the cold water tank is fixedly connected to the bottom of the piston tube; a water outlet pipe is communicated and arranged on the peripheral side surface of the piston tube near its bottom; the water outlet pipe is connected to the extension pipe through a hose; one-way valves are installed on both the water extraction pipe and the water outlet pipe.

[0016] The advantages of the present invention are as follows:

[0017] 1. The assembly of the fixing member, the lifting member and the cage in the present invention enables the flue gas to be treated by multiple groups of columnar activated carbon in the serpentine channel, replacing the structure of the traditional multi-layer filter element plate. While reducing the floor space, it prolongs the contact path between the flue gas and the columnar activated carbon, improves the filtering effect, effectively prevents the centrifugal vacuum pump body from being blocked, and improves the service life of the centrifugal vacuum pump body.

[0018] 2. By controlling the rotation of the cage between the fixing member and the lifting member, the present invention changes the flow path of the flue gas in the serpentine channel, ensuring that each group of columnar activated carbon takes turns to directly contact the flue gas, thereby uniformly utilizing the activated carbon, reducing the replacement frequency, reducing waste and saving costs.

[0019] 3. Through the setting of the cold water tank, the present invention enables the fixing member to exchange heat with the cold water flowing in the cold water tank, reducing the temperature of the flue gas. At the same time, the high-speed flowing air at the exhaust end of the centrifugal vacuum pump drives the sliding part to reciprocate up and down along the receiving pipe. Cooperating with the piston structure, the cold water in the cold water tank is pumped into the positioning ring to wet the sponge block, and the cold water is applied to the outer wall of the high-temperature receiving pipe, evaporating and absorbing heat, further reducing the temperature of the flue gas. While protecting the centrifugal vacuum pump, the heat energy in the high-temperature flue gas is utilized to achieve an energy-saving effect. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of an energy-saving and anti-blocking centrifugal pump according to the present invention.

[0021] Figure 2 It is a schematic structural diagram of the centrifugal vacuum pump body according to the present invention.

[0022] Figure 3 For the present invention Figure 2 Enlarged view of area A.

[0023] Figure 4Schematic structural diagram of the filtering part of the present invention.

[0024] Figure 5 Schematic structural diagram of the lifting member of the present invention.

[0025] Figure 6 For the present invention Figure 5 Schematic structural diagram of the upward viewing angle.

[0026] Figure 7 Schematic structural diagram of the fixing member of the present invention.

[0027] Figure 8 Schematic structural diagram of another angle of the fixing member of the present invention.

[0028] Figure 9 Schematic structural diagram of the top view angle of the fixing member of the present invention.

[0029] Figure 10 Schematic structural diagram of the cage of the present invention.

[0030] Figure 11 Schematic structural diagram of the sliding part of the present invention.

[0031] In the figure: 1. Centrifugal vacuum pump body; 2. Filtering part; 3. Fixing member; 4. Lifting member; 5. Cage; 6. Bottom cover; 7. Top cover; 8. Connecting pipe; 9. Upper U-shaped pipe; 10. Intake pipe; 11. Exhaust pipe; 12. Lower U-shaped pipe; 13. Connecting disc; 14. Receiving pipe; 15. Lifting plate; 16. Screw hole; 17. Guide hole; 18. Support plate; 19. Screw rod; 20. Guide rod; 21. Fastening nut; 22. Insert block; 23. Fixed ring; 24. Rotating ring; 25. First annular groove; 26. Water outlet pipe; 27. Insert slot; 28. Gear ring; 29. C-shaped plate; 30. Servo motor; 31. Gear; 32. Controller; 33. Sealing groove; 34. Annular cavity; 35. Communication groove; 36. High-temperature resistant elastic diaphragm; 37. Piston cylinder; 38. First air pipe; 39. Branch pipe; 40. Second air pipe; 41. Piston rod; 42. Vertical rod; 43. Iron plate; 44. Baffle; 45. Tension spring; 46. Electromagnetic chuck; 47. Cold water tank; 48. Exhaust pipe; 49. Delivery pipe; 50. T-shaped plate; 51. Insertion frame; 52. Water inlet pipe; 53. Drain pipe; 54. Heat conduction groove; 55. Sliding part; 56. Connecting ring; 57. Positioning ring; 58. Sponge ring; 59. Extension pipe; 60. Exhaust pipe; 61. Slide bar; 62. Discharge pipe; 63. Slide pipe; 64. Bellows; 65. Reciprocating lead screw; 66. Ear plate; 67. Slide sleeve; 68. Extension plate; 69. Arc plate; 70. Arc groove; 71. Guide ring; 72. U-shaped rod; 73. Piston block; 74. Piston pipe; 75. Water extraction pipe; 76. Avoidance groove;. Detailed implementation manners

[0032] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0034] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the accompanying drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually the left and right shown in the accompanying drawings; "inner, outer" refer to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the present invention.

[0035] Embodiment 1, please refer to Figures 1-11 , the present invention provides the following technical solutions:

[0036] An energy-saving anti-blocking centrifugal pump, specifically, includes a centrifugal vacuum pump body 1; a filtering part 2 is arranged at the air extraction end of the centrifugal vacuum pump body 1; the filtering part 2 includes a fixing part 3, a lifting part 4 and a cage 5; the fixing part 3 is slidably matched with the lifting part 4; the cage 5 is rotatably arranged between the fixing part 3 and the lifting part 4.

[0037] The fixing part 3 includes a bottom cover 6; the lifting part 4 includes a top cover 7; a plurality of connecting pipes 8 are fixedly penetrated through the surfaces of the top cover 7 and the bottom cover 6; an upper U-shaped pipe 9 is fixed between two adjacent connecting pipes 8 on the top cover 7; an air inlet pipe 10 and an air outlet pipe 11 are respectively fixed on two adjacent connecting pipes 8 on the bottom cover 6; a lower U-shaped pipe 12 is fixed between the remaining two adjacent connecting pipes 8 on the bottom cover 6.

[0038] The cage 5 includes two connecting disks 13 that are respectively rotatably matched with the bottom cover 6 and the top cover 7; a plurality of receiving pipes 14 are uniformly penetrated and communicated between the two connecting disks 13; the air inlet pipe 10, the air outlet pipe 11, the upper U-shaped pipe 9, the lower U-shaped pipe 12 and the receiving pipes 14 are sequentially and alternately connected to form a serpentine channel; columnar activated carbon is placed inside the receiving pipes 14.

[0039] The working principle of this Embodiment 1:

[0040] The assembly of the fixing member 3, the lifting member 4 and the cage 5 enables the flue gas to be treated by multiple groups of columnar activated carbon in the serpentine channel, replacing the structure of the traditional multi-layer filter plate. While reducing the floor space, it extends the contact path of the flue gas with the columnar activated carbon, improves the filtering effect, effectively prevents the centrifugal vacuum pump body 1 from being blocked, and improves the service life of the centrifugal vacuum pump body 1; by controlling the rotation of the cage 5 between the fixing member 3 and the lifting member 4, the flow path of the flue gas in the serpentine channel is changed to ensure that each group of columnar activated carbon takes turns to be in direct contact with the flue gas, so as to evenly utilize the activated carbon, reduce the replacement frequency, reduce waste and save costs.

[0041] Embodiment 2, please refer to Figures 1-11 , on the basis of Embodiment 1, the following improvements are made in this Embodiment 2. Specifically, a lifting plate 15 is fixed on the surface of the top cover 7; screw holes 16 are formed on the surface of the lifting plate 15, and guide holes 17 are symmetrically formed on both sides of the screw holes 16 on its surface; a support plate 18 is fixed on the surface of the bottom cover 6; a screw rod 19 that is rotationally and threadedly engaged with the screw holes 16 is rotatably arranged on the surface of the support plate 18, and guide rods 20 that are slidably engaged with the guide holes 17 are symmetrically fixed on both sides of the screw rod 19 on its surface; a plurality of fastening nuts 21 are screwed on the screw rod 19.

[0042] A plurality of insertion blocks 22 are evenly fixed on the outer peripheral side surface of the lower connecting disk 13; a fixing ring 23 is fixed on the bottom surface of the bottom cover 6; a rotating ring 24 is rotatably arranged on the surface of the fixing ring 23; a first annular groove 25 is formed on the surface of the fixing ring 23; a second annular groove is formed on the inner peripheral side surface of the first annular groove 25; an annular rail that is rotationally engaged with the first annular groove 25 is fixed on the bottom surface of the rotating ring 24; a limiting rail that is rotationally engaged with the second annular groove is fixed on the outer peripheral side surface of the annular rail; a plurality of slots 27 that are inserted and matched with the corresponding insertion blocks 22 are evenly formed on the inner peripheral side surface of the rotating ring 24.

[0043] A toothed ring 28 is fixed on the outer peripheral side surface of the rotating ring 24; a C-shaped plate 29 is fixed on the circumferential side surface of the fixing ring 23; a servo motor 30 is fixed on the inner top of the C-shaped plate 29; a gear 31 that is meshed with the toothed ring 28 is fixed on the output end of the servo motor 30; a controller 32 is fixedly installed on the side surface of the C-shaped plate 29; the output end of the controller 32 is electrically connected to the servo motor 30.

[0044] A plurality of sealing grooves 33 that are coaxial with the corresponding storage pipes 14 are evenly formed on the inner bottom surface of the connecting disk 13; a plurality of annular cavities 34 are formed on the bottom of the top cover 7 and the top of the bottom cover 6; a plurality of communication grooves 35 for communicating adjacent two annular cavities 34 are evenly formed inside the top cover 7 and the bottom cover 6; a high-temperature resistant elastic diaphragm 36 is arranged in the annular cavity 34; the high-temperature resistant elastic diaphragm 36 in the inflated and enlarged state is adapted to the sealing grooves 33.

[0045] Above the top cover 7, there is a piston cylinder 37; at the bottom of the piston cylinder 37, a first air pipe 38 is connected and arranged to penetrate through the top cover 7 and extend into the communication groove 35; on the circumferential side of the first air pipe 38, a branch pipe 39 is connected and arranged; a second air pipe 40 penetrates through the bottom surface of the bottom cover 6 and extends into the sealing groove 33; the second air pipe 40 and the branch pipe 39 are connected by a hose; inside the piston cylinder 37, a piston plate is slidably arranged; on the surface of the piston plate, a piston rod 41 is fixed.

[0046] On the surface of the top cover 7, vertical rods 42 are symmetrically fixed; at the end of the piston rod 41, an iron plate 43 is fixed and slidably matched with the two vertical rods 42; between the ends of the two vertical rods 42, a baffle 44 is fixed; between the iron plate 43 and the top cover 7, a tension spring 45 sleeved on the vertical rod 42 is fixedly connected; on the bottom surface of the baffle 44, an electromagnetic chuck 46 electrically connected to the output end of the controller 32 is installed.

[0047] The working principle of the second embodiment:

[0048] By inserting the insertion frame 51 at the bottom of the fixing member 3 into the T-shaped plate 50 and fixing it with a fastening bolt, the fixing member 3 is fixedly installed above the cold water tank 47; insert the connection disk 13 at the bottom of the cage 5 into the bottom cover 6, and insert each group of insertion blocks 22 into the corresponding slots 27. Rotate the screw rod 19 to drive the lifting member 4 to slide down along the guide rod 20, so that the top cover 7 on the lifting member 4 is inserted into the connection disk 13 at the top of the cage 5. At this time, the cage 5 can freely rotate between the fixing member 3 and the lifting member 4 synchronously with the rotating ring 24. Tighten the fastening nut 21 to prevent the lifting member 4 from moving up and affecting the use, and complete the assembly of the fixing member 3, the lifting member 4 and the cage 5.

[0049] Control the electromagnetic chuck 46 to lose power. Under the elastic reset force of the tension spring 45, pull the iron plate 43 to slide down along the vertical rod 42, drive the piston plate to slide down, and send the air inside the piston cylinder 37 into the communication grooves 35 of the top cover 7 and the bottom cover 6 respectively through the first air pipe 38 and the branch pipe 39, so that each group of high-temperature resistant elastic diaphragms 36 are inflated and enlarged, and are pressed into the corresponding sealing grooves 33, improving the sealing performance of the connection between the storage pipe 14 and the corresponding connection pipe 8.

[0050] At regular intervals, first control the electromagnetic chuck 46 to be energized, attracting the iron plate 43 to slide upward along the vertical rod 42, driving the piston plate to slide upward, pumping the air back into the piston cylinder 37, and the high-temperature resistant elastic diaphragm 36 resets and disengages from the corresponding sealing groove 33. Then, control the servo motor 30 to start, driving the gear 31 to rotate counterclockwise by a specified number of turns, thereby driving the gear ring 28 and the rotating ring 24 to rotate clockwise by a specified angle, so that the storage pipe 14 arranged directly above the delivery pipe 49 rotates to directly below the exhaust pipe 48, that is, the columnar activated carbon in direct contact with the flue gas rotates to the tail of the spiral channel; repeat the above operations to adjust the path of the flue gas entry, so that each group of columnar activated carbon can be in direct contact with the flue gas, improving the filtration effect while reducing the replacement frequency of the columnar activated carbon, reducing waste and saving costs.

[0051] Embodiment 3, please refer to Figures 1-11 , on the basis of Embodiment 2, the following improvements are made in this Embodiment 3. Specifically, a cold water tank 47 is arranged in front of the air extraction end of the centrifugal vacuum pump body 1; the side surface of the cold water tank 47 is symmetrically penetrated and fixed with an exhaust pipe 48 and a delivery pipe 49; the exhaust pipe 48 is fixedly connected and communicated with the air extraction end of the centrifugal vacuum pump body 1; the inner bottom surface of the cold water tank 47 is fixed with a T-shaped plate 50; the bottom surface of the support plate 18 is fixed with a plug-in frame 51 that is inserted and matched with the T-shaped plate 50; the T-shaped plate 50 and the plug-in frame 51 are fixedly connected by fastening bolts; the side surface of the cold water tank 47 is sequentially penetrated with a water inlet pipe 52 and a drain pipe 53.

[0052] The outer peripheral side surface of the storage pipe 14 is uniformly provided with heat conduction grooves 54; a sliding part 55 is slidably arranged between the storage pipes 14; the sliding part 55 includes a connecting ring 56; the inner peripheral side surface of the connecting ring 56 is uniformly fixed with a plurality of positioning rings 57 coaxial with the corresponding storage pipe 14; the inside of the positioning ring 57 is hollow, and a plurality of water outlet holes are uniformly arranged on its inner wall; a sponge ring 58 slidably matched with the heat conduction groove 54 is arranged on the inner wall of the positioning ring 57; the outer peripheral side surface of the positioning ring 57 is fixedly connected and communicated with an extension pipe 59.

[0053] The exhaust end of the centrifugal vacuum pump body 1 is fixedly connected and communicated with an exhaust pipe 60; the top of the exhaust pipe 60 is symmetrically fixed with sliding rods 61; a discharge pipe 62 is fixed between the ends of the two sliding rods 61; a sliding pipe 63 is slidably arranged between the two sliding rods 61; bellows 64 are arranged between the two ends of the sliding pipe 63 and the exhaust pipe 60 and the discharge pipe 62 for communication; an installation block is fixedly installed inside the exhaust pipe 60; a rotating shaft is rotatably arranged through the surface of the installation block; the bottom end of the rotating shaft is fixed with an impeller, and the top of the rotating shaft is fixed with a reciprocating lead screw 65; an ear plate 66 is fixed on the inner wall of the sliding pipe 63; the end of the ear plate 66 is fixed with a sliding sleeve 67 adapted to the reciprocating lead screw 65.

[0054] Inside the sliding sleeve 67, a slider adapted to the reciprocating lead screw 65 is fixed. The reciprocating lead screw 65 is a form of a three-dimensional cam pair, which is manifested as two thread grooves with the same pitch and opposite helix directions, and the two ends are connected by transition curves. By rotating the reciprocating lead screw 65, the side surface of the helical groove pushes the slider placed in the helical groove to perform an axial reciprocating motion.

[0055] An extension plate 68 is fixed on the circumferential side surface of the sliding pipe 63; an arc plate 69 is fixed at the end of the extension plate 68; an arc groove 70 is formed in the inner wall of the arc plate 69; a guide ring 71 that is rotationally matched with the arc groove 70 is fixed on the outer circumferential side surface of the connecting ring 56; a U-shaped rod 72 is fixed on the surface of the positioning ring 57; a plurality of avoiding grooves 76 for the free passage of the U-shaped rod 72 are uniformly formed in the inner wall of the upper connecting disk 13; a piston block 73 is fixed at the bottom end of the U-shaped rod 72; a plurality of piston pipes 74 that are slidably matched with the corresponding piston blocks 73 are uniformly fixed on the surface of the lower connecting disk 13; a water suction pipe 75 extending into the interior of the cold water tank 47 is fixedly connected to the bottom of the piston pipe 74; a water outlet pipe 26 is communicated and arranged on the circumferential side surface of the piston pipe 74 near its bottom; the water outlet pipe 26 is connected to the extension pipe 59 through a flexible hose; one-way valves are installed on both the water suction pipe 75 and the water outlet pipe 26.

[0056] By providing a one-way valve on the water suction pipe 75, the cold water in the cold water tank 47 can only be pumped into the corresponding piston pipe 74 through the water suction pipe 75; by providing a one-way valve on the water outlet pipe 26, the cold water in the piston pipe 74 can only be injected into the interior of the positioning ring 57 through the water outlet pipe 26, the flexible hose and the extension pipe 59 to wet the sponge ring 58.

[0057] The working principle of the third embodiment:

[0058] Through the setting of the cold water tank 47, the fixing member 3 exchanges heat with the flowing cold water in the cold water tank 47 to reduce the temperature of the flue gas inside the spiral channel; the air discharged from the exhaust pipe 60 drives the impeller to rotate, thereby driving the rotating shaft to rotate, and further driving the reciprocating lead screw 65 to rotate, so that the sliding sleeve 67 drives the sliding pipe 63 to perform a reciprocating lifting motion along the sliding rod 61, and further drives the arc plate 69 at the end of the extension plate 68 to drive the guide ring 71 to perform a reciprocating lifting motion, so that the positioning ring 57 on the sliding part 55 performs a reciprocating lifting motion along the outer wall of the corresponding receiving pipe 14. During the rising process of the sliding part 55, the piston block 73 is driven to slide and rise along the piston pipe 74, and the cold water in the cold water tank 47 is pumped into the piston pipe 74 through the water suction pipe 75. During the descending process of the sliding part 55, the piston block 73 is driven to slide down, and the cold water inside the piston pipe 74 is sent into the positioning ring 57 to wet the sponge ring 58, thereby realizing smearing cold water on the outer wall of the high-temperature receiving pipe 14. The cold water evaporates and absorbs heat, further improving the cooling effect.

[0059] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0061] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0062] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0063] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention shall be within the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. An energy-saving anti-blocking centrifugal pump, comprising a centrifugal vacuum pump body (1); characterized in that: A filtering part (2) is arranged at the air extraction end of the centrifugal vacuum pump body (1); the filtering part (2) includes a fixing part (3), a lifting part (4) and a cage (5); the fixing part (3) is slidably matched with the lifting part (4); the cage (5) is rotatably arranged between the fixing part (3) and the lifting part (4). The fixing part (3) includes a bottom cover (6); the lifting part (4) includes a top cover (7); a plurality of connecting pipes (8) are fixedly penetrated through the surfaces of the top cover (7) and the bottom cover (6); an upper U-shaped pipe (9) is fixed between every two adjacent connecting pipes (8) on the top cover (7); an air inlet pipe (10) and an air outlet pipe (11) are respectively fixed on every two adjacent connecting pipes (8) on the bottom cover (6); a lower U-shaped pipe (12) is fixed between every two other adjacent connecting pipes (8) on the bottom cover (6). The cage (5) includes two connecting discs (13) which are rotatably matched with the bottom cover (6) and the top cover (7) respectively; a plurality of storage pipes (14) are uniformly penetrated and communicated between the two connecting discs (13); the air inlet pipe (10), the air outlet pipe (11), the upper U-shaped pipe (9), the lower U-shaped pipe (12) and the storage pipes (14) are sequentially and alternately connected to form a serpentine channel; columnar activated carbon is placed inside the storage pipes (14).

2. The energy-saving anti-blocking centrifugal pump according to claim 1, characterized in that: A lifting plate (15) is fixed on the surface of the top cover (7); a screw hole (16) is formed on the surface of the lifting plate (15), and guide holes (17) are symmetrically formed on both sides of the screw hole (16) on the surface; a support plate (18) is fixed on the surface of the bottom cover (6); a screw rod (19) which is in threaded rotation fit with the screw hole (16) is rotatably arranged on the surface of the support plate (18), and guide rods (20) which are in sliding fit with the guide holes (17) are symmetrically fixed on both sides of the screw rod (19) on the surface; a plurality of fastening nuts (21) are screwed on the screw rod (19).

3. The energy-saving anti-blocking centrifugal pump according to claim 2, wherein: A plurality of insertion blocks (22) are uniformly fixed on the outer peripheral side surface of the lower connecting disc (13); a fixing ring (23) is fixed on the bottom surface of the bottom cover (6); a rotating ring (24) is rotatably arranged on the surface of the fixing ring (23); a first annular groove (25) is formed on the surface of the fixing ring (23); a second annular groove is formed on the inner peripheral side surface of the first annular groove (25); an annular rail which is in rotational fit with the first annular groove (25) is fixed on the bottom surface of the rotating ring (24); a limiting rail which is in rotational fit with the second annular groove is fixed on the outer peripheral side surface of the annular rail; a plurality of insertion slots (27) which are in insertion fit with the corresponding insertion blocks (22) are uniformly formed on the inner peripheral side surface of the rotating ring (24).

4. The energy-saving anti-blocking centrifugal pump according to claim 3, characterized in that: A gear ring (28) is fixed on the outer peripheral side surface of the rotating ring (24); a C-shaped plate (29) is fixed on the circumferential side surface of the fixing ring (23); a servo motor (30) is fixed on the inner top of the C-shaped plate (29); a gear (31) which is in meshing fit with the gear ring (28) is fixed on the output end of the servo motor (30); a controller (32) is fixedly installed on the side surface of the C-shaped plate (29); the output end of the controller (32) is electrically connected to the servo motor (30).

5. The energy-saving anti-blocking centrifugal pump according to claim 4, characterized in that: The inner bottom surface of the connecting plate (13) is evenly provided with a number of sealing grooves (33) coaxial with the corresponding storage tubes (14); a number of annular cavities (34) are provided at the bottom of the top cover (7) and the top of the bottom cover (6); a number of communicating grooves (35) for communicating adjacent two annular cavities (34) are evenly provided inside the top cover (7) and the bottom cover (6); a high-temperature resistant elastic diaphragm (36) is arranged in the annular cavity (34); the high-temperature resistant elastic diaphragm (36) in the inflated and expanded state is adapted to the sealing groove (33).

6. The energy-saving anti-blocking centrifugal pump according to claim 5, characterized in that: A piston cylinder (37) is arranged above the top cover (7); the bottom of the piston cylinder (37) is communicated and provided with a first air pipe (38) extending through the top cover (7) and into the communicating groove (35); a branch pipe (39) is communicated and arranged on the peripheral side surface of the first air pipe (38); a second air pipe (40) extending through the bottom surface of the bottom cover (6) and into the sealing groove (33); the second air pipe (40) is connected to the branch pipe (39) through a hose; a piston plate is slidably arranged inside the piston cylinder (37); a piston rod (41) is fixed on the surface of the piston plate; Vertical rods (42) are symmetrically fixed on the surface of the top cover (7); an iron plate (43) slidably matched with the two vertical rods (42) is fixed at the end of the piston rod (41); a baffle (44) is fixed between the ends of the two vertical rods (42); a tension spring (45) sleeved on the vertical rod (42) is fixedly connected between the iron plate (43) and the top cover (7); an electromagnetic chuck (46) electrically connected to the output end of the controller (32) is installed on the bottom surface of the baffle (44).

7. The energy-saving anti-blocking centrifugal pump according to claim 6, characterized in that: A cold water tank (47) is arranged in front of the air extraction end of the centrifugal vacuum pump body (1); an air extraction pipe (48) and a delivery pipe (49) are symmetrically and penetratingly fixed on the peripheral side surface of the cold water tank (47); the air extraction pipe (48) is fixedly connected and communicated with the air extraction end of the centrifugal vacuum pump body (1); a T-shaped plate (50) is fixed on the inner bottom surface of the cold water tank (47); a plug-in frame (51) inserted and matched with the T-shaped plate (50) is fixed on the bottom surface of the support plate (18); the T-shaped plate (50) and the plug-in frame (51) are fixedly connected by a fastening bolt; a water inlet pipe (52) and a drain pipe (53) are sequentially arranged through the peripheral side surface of the cold water tank (47).

8. The energy-saving anti-blocking centrifugal pump according to claim 7, characterized in that: Heat conduction grooves (54) are evenly arranged on the outer peripheral side surface of the storage tube (14); a sliding part (55) is slidably arranged between the storage tubes (14); the sliding part (55) includes a connecting ring (56); a number of positioning rings (57) coaxial with the corresponding storage tubes (14) are evenly fixed on the inner peripheral side surface of the connecting ring (56); the inside of the positioning ring (57) is hollow, and a number of water outlet holes are evenly arranged on its inner wall; a sponge ring (58) slidably matched with the heat conduction groove (54) is arranged on the inner wall of the positioning ring (57); an extension pipe (59) is fixedly connected and communicated with the outer peripheral side surface of the positioning ring (57).

9. The energy-saving anti-blocking centrifugal pump according to claim 8, characterized in that: The exhaust end of the centrifugal vacuum pump body (1) is fixedly connected with an exhaust pipe (60); symmetrically fixed on the top of the exhaust pipe (60) are sliding rods (61); a discharge pipe (62) is fixed between the ends of the two sliding rods (61); a sliding pipe (63) is slidably arranged between the two sliding rods (61); bellows (64) are respectively communicated between the two ends of the sliding pipe (63) and the exhaust pipe (60) and the discharge pipe (62); an installation block is fixedly installed inside the exhaust pipe (60); a rotating shaft is rotatably arranged through the surface of the installation block; a impeller is fixed at the bottom end of the rotating shaft, and a reciprocating lead screw (65) is fixed at the top end thereof; an ear plate (66) is fixed on the inner wall of the sliding pipe (63); a sliding sleeve (67) adapted to the reciprocating lead screw (65) is fixed at the end of the ear plate (66).

10. The energy-saving anti-blocking centrifugal pump according to claim 9, characterized in that: A extension plate (68) is fixed on the circumferential surface of the sliding pipe (63); an arc-shaped plate (69) is fixed at the end of the extension plate (68); an arc-shaped groove (70) is formed in the inner wall of the arc-shaped plate (69); a guiding ring (71) rotatably engaged with the arc-shaped groove (70) is fixed on the outer circumferential surface of the connecting ring (56); a U-shaped rod (72) is fixed on the surface of the positioning ring (57); a number of avoiding grooves (76) for the free passing of the U-shaped rod (72) are uniformly formed in the inner wall of the upper connecting disk (13). A piston block (73) is fixed at the bottom end of the U-shaped rod (72); a number of piston pipes (74) slidably engaged with the corresponding piston blocks (73) are uniformly fixed on the surface of the lower connecting disk (13); a water suction pipe (75) extending into the inside of the cold water tank (47) is fixedly connected to the bottom of the piston pipe (74); a water outlet pipe (26) is communicated with the circumferential surface of the piston pipe (74) near its bottom; the water outlet pipe (26) is connected to the extension pipe (59) through a hose; one-way valves are installed on both the water suction pipe (75) and the water outlet pipe (26).

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