CN209800130U - Conical dust collecting surface structure of air filter - Google Patents
Conical dust collecting surface structure of air filter Download PDFInfo
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- CN209800130U CN209800130U CN201920777057.0U CN201920777057U CN209800130U CN 209800130 U CN209800130 U CN 209800130U CN 201920777057 U CN201920777057 U CN 201920777057U CN 209800130 U CN209800130 U CN 209800130U
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Abstract
The utility model discloses an air cleaner's toper dust collecting surface structure, cyclone tube install in the hollow tube of upper cover, and the upper end of hollow tube is provided with toper dust collecting surface, and toper dust collecting surface is located cyclone tube top. The utility model discloses correspond cyclone tube and set up the hollow tube on the same horizontal plane of upper cover, every hollow tube upper end is provided with small-size toper dust collection face, and toper dust collection face is conical dust collection face structure or pyramid dust collection face structure, and pollutants such as dust, grains of sand from toper dust collection face landing entering cyclone tube discharge under the effect of gravity, and can not be at upper cover upper surface deposit, avoid the influence of pollutant to the filter core.
Description
Technical Field
The utility model belongs to the technical field of engine air intake system's air cleaner and specifically relates to an air cleaner's toper dust collection face structure.
Background
The engine is used as a power source of vehicles and engineering mechanical equipment, and the quality of the performance of an air intake system directly influences the power output performance of the engine. The air intake system of the engine mainly comprises a pre-filtering assembly, an air intake pipeline and an air filter. The air filter is a core component of an air inlet system of the engine, and mainly functions to filter out pollutants such as dust, sand and the like in air and provide clean air for the engine.
The desert air filter is a general name of the air filter integrating two large parts of a pre-filtering assembly and an air inlet pipeline of an air inlet system into a shell, and the number of the cyclone pipes of the pre-filtering assembly is more, so that the desert air filter can be applied to vehicles used in severe working conditions with very high dust concentration such as mines, sand and stone plants, desert zones and the like for a long time. The working principle of the desert air filter is as follows: air in the atmospheric environment enters from an air inlet of the desert air filter under the driving of the negative pressure of the engine and passes through the pre-filtering assembly in the shell to be subjected to primary filtering. Dirty outdoor air containing dust and sand generates rotational flow in a rotational flow pipe of the pre-filtering assembly, and the dust and the sand with larger particle size and heavier weight are separated from the air; the cleaner air obtained after the primary filtration is subjected to secondary filtration through the main filter element and the safety filter element in the air filter, dust and the like with smaller particle size and lighter weight are intercepted by the filter elements, and finally the cleaner air is obtained, and the cleaner air is discharged from the air outlet of the cleaner air and enters the engine. With the continuous accumulation of the working time, the number of pollutants filtered by the outer surface of the filter paper of the main filter element of the air filter is increased, and finally the maximum resistance and dust holding capacity allowed by the design of the main filter element are reached, namely the service life of the filter element is reached, and at the moment, the filter element needs to be replaced.
As shown in figure 1, the air filter for desert in prior art is provided with a main filter element 2, a pre-filtering assembly 3 and a dust collecting cover assembly 5 in a shell 1 from top to bottom in sequence, an upper cover 31 of the pre-filtering assembly 3 is provided with a plurality of cyclone tubes 32 arranged in an array, the lower ends of the cyclone tubes 32 extend into a cyclone tube sleeve 341, and the lower ends of the cyclone tube sleeve 341 are sleeved on corresponding holes of a lower cover 34. The upper surface of the upper cover 31 is a horizontal dust collecting surface 3100, and contaminants such as dust and sand falling on the horizontal dust collecting surface 3100 are not sufficiently transferred to the inside of the cyclone tube 32 and are discharged from the dust discharge valve 56 at the bottom. Along with the accumulation of the working time, the deposited pollutants on the horizontal dust collecting surface 3100 are continuously increased and can be adsorbed on the outer surface of the main filter element 2 which is closer under the action of negative pressure, so that the service life of the filter element is influenced, the maintenance period of the air filter is shortened, and the maintenance cost of the air filter is increased.
The swirl tube 32, the swirl plate 321 and other parts of the pre-filter assembly 3 of the conventional desert air filter are generally manufactured and assembled independently. On one hand, the assembly clearance among all the parts is large, the leakage points are large, and the polluted air can enter the interior of the pre-filtering assembly 3 from the leakage part; on the other hand, the concentricity and the verticality between the upper cover 31 and the cyclone tube 32 and between the cyclone tube sleeve 341 and the lower cover 34 are poor, so that the sealing performance between the components is poor, and therefore, the pre-filtering efficiency of the pre-filtering assembly 3 is low. The equipment of current 3 each parts of prefiltration assembly is basically by artifical the completion, the vortex sheet 321's is small in size, in large quantity, the vortex sheet 321 assembles to vortex pipe 32 on, need consume a large amount of manpowers, and take place the installation dislocation easily, the condition of neglected loading even, and then influence prefiltration assembly 3's prefiltration efficiency in advance, production and assembly cost are high, and every part all has the difference, the uniformity of product has been reduced, stability, the degree of difficulty that end user maintained the product has also been increased. As shown in FIG. 2, there is a round of bellying 320 at the outside arch of vortex tube 32 upper end periphery, corresponds on upper cover 31 and is equipped with boss 3101, and vortex tube 32 passes through the cooperation installation of bellying 320 and boss 3101 on upper cover 31, is clearance fit between the two, and the leakproofness of cooperation department is relatively poor, and the air is revealed from the cooperation easily, and in the course of the work, vortex tube 32 receives the exogenic action, takes place to become flexible easily.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects that the horizontal dust collecting surface in the air filter in the desert cannot discharge dust in time, so that the maintenance period of the filter element is short, the conical dust collecting surface structure of the air filter with a reasonable structure is provided, the conical dust collecting surface is arranged above the cyclone tube, the dust can be discharged in time, and the maintenance period of the air filter is prolonged.
The utility model discloses the technical scheme who adopts as follows:
The utility model provides an air cleaner's toper dust collection face structure, the cyclone tube is installed in the hollow tube of upper cover, and the upper end of hollow tube is provided with toper dust collection face, and toper dust collection face is located cyclone tube top.
As a further improvement of the above technical solution:
The conical dust collecting surface is a conical dust collecting surface or a pyramid dust collecting surface.
the utility model discloses correspond cyclone tube and set up the hollow tube on the same horizontal plane of upper cover, every hollow tube upper end is provided with small-size toper dust collection face, and toper dust collection face is conical dust collection face structure or pyramid dust collection face structure, and pollutants such as dust, grains of sand from toper dust collection face landing entering cyclone tube discharge under the effect of gravity, and can not be at upper cover upper surface deposit, avoid the influence of pollutant to the filter core.
The top ends of the adjacent conical dust collecting surfaces are connected through V-shaped zigzag edges.
The top ends of the adjacent conical dust collecting surfaces are connected to form a horizontal edge.
The utility model discloses a top of adjacent pyramid collection dirt face meets for the tortuous edge of V type mutually, and tortuous edge has the inclination, and the regional summit that only pyramid collection dirt face of dust that can the gathering dust can the landing under the action of gravity in pollutants such as dust, grains of sand that fall at tortuous edge, has avoided the deposit of pollutant at the hollow tube upper end. The top ends of the adjacent conical dust collecting surfaces are connected to form a horizontal edge, the area of the edge capable of accumulating dust is small, and pollutants such as dust, sand particles and the like are not easy to deposit on the upper end part of the hollow tube in a large amount.
The lower part that contains the spinning disk on the whirl pipe is located whirl pipe sleeve, and whirl pipe sleeve is integrated on the lower cover, and whirl pipe sleeve and lower cover are through integrated into one piece, are provided with the strengthening rib between the telescopic surface of adjacent whirl pipe.
The periphery of the cyclone tube is integrated with a cyclone sheet, and the cyclone tube and the cyclone sheet are integrally formed.
Adopt the utility model discloses an air cleaner's whirl tube sleeve is integrated in prefiltering the lower cover, and the lower cover wholly adopts integrated into one piece with whirl tube sleeve. After the integrated design is adopted, the assembly step is avoided between the cyclone tube sleeve and the lower cover, the installation clearance between the components is avoided, the installation cost is saved, the problem of installation dislocation or neglected installation is prevented, the concentricity and the verticality requirements between the components are ensured, the sealing performance between the components is improved, and the pre-filtering efficiency is further improved. The integral structural rigidity behind whirl pipe sleeve and the lower cover integrated design, whirl pipe are independent design, and flexibility when having guaranteed the whirl pipe assembly and advancing whirl pipe sleeve avoids crossing spacingly when assembling. And reinforcing ribs are arranged between the adjacent rotational flow pipe sleeves, so that the integral strength of the parts is ensured, and the stability and reliability of the product are improved. The spiral-flow tube and the spiral-flow sheet are integrally formed, so that the assembly steps are avoided, the installation gap between the components is avoided, the installation cost is saved, the problem of installation dislocation or neglected installation is prevented, the concentricity and the verticality between the components are ensured, the sealing performance between the components is improved, and the pre-filtering efficiency is improved.
The inner wall of the hollow tube is provided with a convex back-off unit, and after the cyclone tube is inserted into the hollow tube, the back-off unit is in interference fit with the outer cylindrical surface of the cyclone tube.
The outer wall of the cyclone tube is provided with a second reverse buckle, and the second reverse buckle is in interference fit with the inner wall of the hollow tube after the cyclone tube is inserted into the hollow tube; the first reverse buckle and the second reverse buckle are arranged in a staggered mode to achieve interlocking.
The bottom surface of the hollow pipe is a horizontal plane; the periphery of the cyclone tube is provided with a circle of limiting bosses, the top surfaces of the limiting bosses are horizontal planes, and the limiting bosses are matched with the bottom surface of the hollow tube to realize the limiting in the vertical direction.
The air filter of the utility model is provided with the back-off respectively on the hollow tube and the cyclone tube of the upper cover, and the two back-off respectively are in interference fit with the matching surface, thereby ensuring the sealing performance between the cyclone tube and the upper cover and preventing gas leakage; two back-offs are locked mutually, can guarantee that every cyclone tube installation targets in place to prevent that cyclone tube from deviating from in the downthehole of hollow tube, make cyclone tube's installation more firm. The spacing boss top surface of whirl pipe cooperatees with the bottom surface of hollow tube, realizes the spacing of vertical direction, prevents that the whirl pipe from leading to the installation dislocation because the excessive pressure.
The utility model has the advantages as follows:
The utility model discloses correspond cyclone tube and set up the hollow tube on the same horizontal plane of upper cover, every hollow tube upper end is provided with small-size toper dust collection face, and toper dust collection face is conical dust collection face structure or pyramid dust collection face structure, and pollutants such as dust, grains of sand from toper dust collection face landing entering cyclone tube discharge under the effect of gravity, and can not be at upper cover upper surface deposit, avoid the influence of pollutant to the filter core.
The utility model discloses a top of adjacent pyramid collection dirt face meets for the tortuous edge of V type mutually, and tortuous edge has the inclination, and the regional summit that only pyramid collection dirt face of dust that can the gathering dust can the landing under the action of gravity in pollutants such as dust, grains of sand that fall at tortuous edge, has avoided the deposit of pollutant at the hollow tube upper end. The top ends of the adjacent conical dust collecting surfaces are connected to form a horizontal edge, the area of the edge capable of accumulating dust is small, and pollutants such as dust, sand particles and the like are not easy to deposit on the upper end part of the hollow tube in a large amount.
Adopt the utility model discloses an air cleaner's whirl tube sleeve is integrated in prefiltering the lower cover, and the lower cover wholly adopts integrated into one piece with whirl tube sleeve. After the integrated design is adopted, the assembly step is avoided between the cyclone tube sleeve and the lower cover, the installation clearance between the components is avoided, the installation cost is saved, the problem of installation dislocation or neglected installation is prevented, the concentricity and the verticality requirements between the components are ensured, the sealing performance between the components is improved, and the pre-filtering efficiency is further improved. The integral structural rigidity behind whirl pipe sleeve and the lower cover integrated design, whirl pipe are independent design, and flexibility when having guaranteed the whirl pipe assembly and advancing whirl pipe sleeve avoids crossing spacingly when assembling. And reinforcing ribs are arranged between the adjacent rotational flow pipe sleeves, so that the integral strength of the parts is ensured, and the stability and reliability of the product are improved. The spiral-flow tube and the spiral-flow sheet are integrally formed, so that the assembly steps are avoided, the installation gap between the components is avoided, the installation cost is saved, the problem of installation dislocation or neglected installation is prevented, the concentricity and the verticality between the components are ensured, the sealing performance between the components is improved, and the pre-filtering efficiency is improved.
The air filter of the utility model is provided with the back-off respectively on the hollow tube and the cyclone tube of the upper cover, and the two back-off respectively are in interference fit with the matching surface, thereby ensuring the sealing performance between the cyclone tube and the upper cover and preventing gas leakage; two back-offs are locked mutually, can guarantee that every cyclone tube installation targets in place to prevent that cyclone tube from deviating from in the downthehole of hollow tube, make cyclone tube's installation more firm. The spacing boss top surface of whirl pipe cooperatees with the bottom surface of hollow tube, realizes the spacing of vertical direction, prevents that the whirl pipe from leading to the installation dislocation because the excessive pressure.
Drawings
Fig. 1 is a perspective sectional view of a conventional desert air cleaner.
Fig. 2 is an enlarged view of a portion H in fig. 1.
Fig. 3 is a perspective view of an air cleaner according to the present invention.
FIG. 4 is a perspective view of the upper cover with a conical dust collecting surface.
Fig. 5 is a cross-sectional view of fig. 4.
Fig. 6 is a perspective view of the upper cover provided with a pyramid-shaped dust collecting surface.
Fig. 7 is a cross-sectional view of fig. 6.
Fig. 8 is an enlarged view of a portion a in fig. 5.
FIG. 9 is a front view of the swirl tube.
Fig. 10 is an enlarged view of a portion B in fig. 9.
Fig. 11 is a perspective view of the dust collection cover assembly.
Fig. 12 is a cross-sectional view of fig. 11.
fig. 13 is a perspective view of the dust exhaust valve.
In the figure: 1. a housing; 2. a main filter element; 3. a pre-filter assembly; 31. an upper cover; 3100. a horizontal dust collecting surface; 3101. a boss; 313. a hollow tube; 3131. a conical dust collecting surface; 316. an inner wall; 317. reversing the first; 319. a bottom surface; 32. a swirl tube; 320. a boss portion; 321. a spinning disk; 323. a limiting boss; 324. reversing the second; 325. an outer wall; 34. a lower cover; 341. a swirl tube sleeve; 5. a dust collection cover assembly; 51. a cover body; 53. ash discharging surface; 55. a dust exhaust ejector pipe; 56. a dust exhaust valve; 57. a dust exhaust lip; 58. a long groove; 6. an outer end cover; 7. an air inlet; 8. an air outlet; alpha2γ: the angle of inclination.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 3, the air cleaner of the present invention comprises a housing 1, a pre-filtering assembly 3 and a dust collecting cover assembly 5 from top to bottom, wherein an air outlet 8 is arranged on one side of the housing 1, an outer end cover 6 is fixedly arranged on the opposite side of the housing 1 through a buckle, and a sealing member is arranged between the housing 1 and the outer end cover 6; the shell 1 is equipped with main filter core 2 with the inside of outer end cover 6, and main filter core 2 is inside to be equipped with endocentric safe filter core, and the filter core chamber and the gas outlet 8 intercommunication of the inside of safe filter core. The lower end of the shell 1 is fixed with a pre-filtering assembly 3 through a fastener, and a sealing ring is arranged between the pre-filtering assembly 3 and the shell 1; the pre-filter assembly 3 is provided with an air inlet 7 on the same side as the outer end cap 6. The lower end of the pre-filtering assembly 3 is fixed with the dust collecting cover assembly 5 through a buckle, and a sealing piece is arranged between the pre-filtering assembly and the dust collecting cover assembly.
As shown in fig. 4 to 7, the upper end surface of the upper cover 31 of the pre-filtering assembly 3 is a horizontal surface, a plurality of cyclone tubes 32 are arranged in the upper cover 31 in an array, the upper end surface of the upper cover 31 is provided with holes and a plurality of hollow tubes 313 extend downwards, the upper end of each hollow tube 313 is provided with a small-sized tapered dust collecting surface 3131, and the cyclone tubes 32 are located below the tapered dust collecting surface 3131. As shown in fig. 4 and 5, the tapered dust collecting surface 3131 has a conical dust collecting surface structure, and an included angle γ between a generatrix of the tapered dust collecting surface and a central axis of the cyclone tube 32 is 5 to 85 degrees, preferably 30 degrees. As shown in fig. 6 and 7, the tapered dust collecting surface 3131 may also be a pyramid-shaped dust collecting surface structure, where the pyramid may be a triangular pyramid, a rectangular pyramid, a pentagonal pyramid, a hexagonal pyramid, or the like, or may be a plurality of pyramids according to actual requirements, and an included angle γ between the pyramid surface and the central axis of the cyclone tube 32 is 5 to 85 degrees, preferably 30 degrees. The top ends of the adjacent conical dust collecting surfaces 3131 are connected to form a horizontal edge, the area of the edge capable of accumulating dust is small, and pollutants such as dust, sand and the like are not easy to deposit on the upper end part of the hollow tube 313 in a large amount; the top ends of the adjacent conical dust collecting surfaces 3131 can be connected to form V-shaped bent edges with slopes, the bent edges have slopes, and pollutants such as dust and sand falling on the bent edges can slide down under the action of gravity, so that the deposition of the pollutants is avoided. Pollutants such as dust, sand grain from toper collection dirt face 3131 landing and in time follow cyclone tube 32 discharge under the effect of gravity, have avoided the pollutant at the deposit of collection dirt face, avoid the pollutant to the influence of filter core, have prolonged the maintenance cycle of filter core, have reduced the maintenance cost.
As shown in fig. 5, 7 and 8, the inner hole of the lower end of the hollow tube 313 is an inner wall 316 and a circle of inverted buckles 317 protruding inwards in sequence from top to bottom, and the bottom 319 of the hollow tube 313 is a horizontal plane. As shown in fig. 9, the swirl tube 32 has a cylindrical upper portion and a conical lower portion. As shown in fig. 9 and 10, a circle of two inverted buckles 324 protrudes outward from an outer wall 325 at the upper end of the cylindrical portion of the swirl tube 32, a circle of limiting bosses 323 protrudes from the periphery of the swirl tube 32 below the two inverted buckles 324, and the top surfaces of the limiting bosses 323 are horizontal planes; the swirl plate 321 is integrated on the outer wall of the lower end of the cylindrical part of the swirl tube 32, and the conical part of the swirl tube 32 is positioned below the swirl plate 321. As shown in fig. 9, the vortex sheet 321 is a curved vortex sheet, and an included angle between a tangent plane of the curved surface of the vortex sheet 321 and a horizontal line is 15-60 degrees, so that an optimal vortex effect is obtained without increasing air inlet resistance; the minor diameter end of circular cone portion is less than the major diameter end by 0.5mm ~ 5mm, both can play the guide effect when inserting spiral-flow tube sleeve 341, also can offset working of plastics shaping and assembly tolerance in, guaranteed concentricity, the straightness requirement that hangs down between spiral-flow tube 32 and spiral-flow tube sleeve 341, improve the leakproofness between the subassembly, and then improve prefiltration efficiency.
As shown in fig. 4, 6 and 8, the first reverse buckle 317 of the hollow tube 313 and the second reverse buckle 324 of the cyclone tube 32 are arranged in a staggered height, after the upper end of the cyclone tube 32 is inserted into the hollow tube 313 of the upper cover 31, the second reverse buckle 324 of the cyclone tube 32 is in interference fit with the inner wall 316 of the hollow tube 313, and the first reverse buckle 317 of the hollow tube 313 is in interference fit with the outer cylindrical surface of the cylindrical part of the cyclone tube 32, so that the sealing performance between the cyclone tube 32 and the upper cover 31 is ensured, and gas leakage is prevented; the first reverse buckle 317 and the second reverse buckle 324 are interlocked, so that each cyclone tube 32 can be ensured to be installed in place, and the cyclone tubes 32 are prevented from being separated from the holes of the hollow tube 313, so that the cyclone tubes 32 are more firmly installed; the outer wall 325 of swirl tube 32 mates with the inner wall 316 of hollow tube 313; the top surface of the limit boss 323 of the swirl tube 32 is matched with the bottom surface 319 of the hollow tube 313, so that the limit in the vertical direction is realized, and the swirl tube 32 is prevented from being installed and dislocated due to overpressure.
The lower part of each cyclone tube 32 containing the cyclone sheet 321 is correspondingly positioned in the vertical cyclone tube sleeve 341, and the outline size of the outermost peripheral enveloping line of the cyclone sheet 321 is matched with the inner diameter of the cyclone tube sleeve 341 so as to ensure the coaxiality requirement of the outer wall of the cyclone tube 32 and the inner wall of the cyclone tube sleeve 341. Swirl tube sleeve 341 is integrated into lower cover 34 of prefilter assembly 3. Many cyclone tube sleeve 341 and 34 integrative injection moulding of lower cover in this embodiment, the integrative injection moulding of spinning disk 321 of every cyclone tube 32 rather than periphery had both been avoided the installation step of cyclone tube sleeve 341, eliminated the installation clearance, had saved the installation cost, can prevent moreover that spinning disk 321 from taking place the problem of installation dislocation or neglected loading, had guaranteed concentricity, the straightness requirement that hangs down between each part, improved the leakproofness between the subassembly, and then improved filtration efficiency in advance. The reinforcing ribs can be utilized to connect and reinforce between the outer surfaces of the adjacent cyclone tube sleeves 341 of the lower cover 34, the reinforcing ribs can ensure the overall strength of the lower cover 34 and the cyclone tube sleeves 341, and the stability and the reliability of the product are improved.
As shown in fig. 11 and 12, a dust exhaust injection pipe 55 is disposed at the bottom inside the cover body 51 of the dust collection cover assembly 5, and one end of the dust exhaust injection pipe 55 located outside the cover body 51 can be externally connected with an injection airflow for efficient dust discharge; the cover body 51 is externally positioned below the dust exhaust injection pipe 55 and is fixedly provided with a dust exhaust valve 56 in a long strip shape, the dust exhaust valve 56 and the cover body 51 can also adopt an integrated into one piece structure, the integrated into one piece structure can save the installation cost, the assembly work is reduced, the installation gap between the parts is avoided, the sealing performance is improved, and the pre-filtering efficiency in the system is further ensured. As shown in fig. 12, the cover 51 has a symmetrical ash discharge surface 53 on the inner surface, the ash discharge surface 53 is an inclined plane having an inclination angle, and the inclination angle of the ash discharge surface 53 is α2Angle of inclination alpha2The angle is 5-60 degrees, preferably 45 degrees. In other embodiments, the ash discharge surface 53 may be a multi-step surface, a downward curved surface or a composite surface formed by combining an inclined plane, a step surface and a curved surface, and the inclination angle of a tangent plane at any point on the curved surface is 0-90 degrees; the two ash surfaces 53 may be either one of the surfaces described above or a combination of two different surfaces. The dust discharging surface 53 of the dust collecting cover is arranged as an inclined plane, a step surface and a downward curved surface, has a larger inclination angle and fallsPollutants such as dust and sand on the dust discharge surface 53 slide off in time under the action of gravity and are discharged in time, so that the deposition of the pollutants is avoided.
as shown in fig. 13, an oblong elongated slot 58 is formed in the dust exhaust valve 56, the cross section of the elongated slot 58 is triangular, and in other embodiments, the cross section of the elongated slot 58 may also be U-shaped or circular arc; the bottom of the long groove 58 is opened and provided with two vertical and parallel strip-shaped dust exhaust lip edges 57, and the dust exhaust lip edges 57 are made of rubber and thermoplastic elastomer flexible materials; a certain gap is formed between the two dust exhaust lip edges 57, the gap value is about 0.5 mm-2 mm, and when negative pressure exists in the air filter, the two dust exhaust lip edges 57 can be tightly attached and closed under the action of the negative pressure to realize sealing of an internal system. The upper end opening of the long groove 58 is in a runway shape, the length direction dimension is 1.5-50 times of the width direction dimension, the overflow area of the upper end opening of the long groove 58 is large, the dust containing capacity is large, the dust flowing in unit time is large, and the dust discharging capacity is improved. The length of the dust exhaust lip edge 57 is greater than that of the opening of the long groove 58, and the two outer ends of the dust exhaust lip edge 57 extend outwards for a certain length along the length direction of the long groove 58 so as to ensure that the dust exhaust lip edge 57 seals the two ends of the long groove 58, the length of the dust exhaust lip edge 57 is longer, the opening of the dust exhaust lip edge 57 is larger when the dust exhaust lip edge 57 is opened, and the dust exhaust capacity is improved; the height of the dust exhaust lip edge 57 is 5 mm-50 mm, the thickness of two lip edges of the dust exhaust lip edge 57 is 0.5 mm-5 mm, the height of the dust exhaust lip edge 57 is larger, the thickness is relatively thinner, the closing of the dust exhaust lip edge 57 can be tighter, and the stability and reliability of the internal system sealing are improved.
Adopt the utility model discloses an air cleaner during operation, air inlet 7 links to each other with high-order bleed pipeline or other pipelines, and gas outlet 8 links to each other with the engine air inlet pipeline, and the engine normal during operation, the inside state that is in the negative pressure of air cleaner, the laminating of dust exhaust lip limit 57 of dust exhaust valve 56 lower extreme makes the inside airtight state that is in of air cleaner's filtration system. The external polluted air containing various particle sizes and dust pollutants is introduced into an air inlet 7 of an air filter through an air guide pipeline, the air enters the interior of the pre-filtering assembly 3 from the air inlet 7, the air firstly enters a cavity space formed by the outer wall of each cyclone tube 32, the upper cover 31 and the lower cover 34, air fluid downwards enters the cyclone tube sleeve 341 and passes through the region of the cyclone sheet 321 under the action of internal negative pressure, cyclone is generated by high-speed rotation under the guiding action of the cyclone sheet 321, the dust pollutants with larger particle sizes and heavier mass in the air fluid are concentrated on the inner circumferential surface of the cyclone tube sleeve 341 under the action of centrifugal force, and as the flow velocity of the wall surface boundary fluid on the inner circumferential surface is close to zero, the dust pollutants with larger particle sizes and heavier weight close to the wall surface are separated and slide under the action of gravity. The pre-filtering assembly 3 separates dust pollutants with larger particle size and heavier mass to obtain cleaner pre-filtered air fluid, the pre-filtered air fluid turns upwards from an opening at the bottom end of the cyclone tube 32 to enter the cyclone tube 32, flows out from an opening at the upper end of the cyclone tube 32 and reaches the outer surface of the main filter element 2, then passes through the main filter element 2 and the safety filter element to enter the filter element cavity, the dust pollutants with smaller particle size and lighter weight are further filtered by the main filter element 2, and finally clean air meeting the cleanliness requirement of an engine is obtained, and the clean air passes through the safety filter element and then enters an air inlet pipeline of the engine through the air outlet 8.
The dust pollutants separated and sliding down in the cyclone tube sleeve 341 and having large particle size and heavy weight are discharged from the lower part of the cyclone tube sleeve 341 and fall on the dust discharge surface 53 of the dust collection cover assembly 5, and the dust pollutants falling on the dust discharge surface 53 slide down into the dust discharge valve 56 under the action of gravity because the dust discharge surface 53 is an inclined surface. When the dust contaminant in the dust discharge valve 56 is deposited to a certain amount, the dust discharge lip 57 is opened by the gravity of the dust contaminant and discharged from the opening of the dust discharge lip 57. The dust exhaust ejector pipe 55 is connected to the ejector fan, when the deposition amount of the dust in the dust exhaust valve 56 reaches a certain amount and is not discharged, the ejector fan can be turned on to discharge the dust, and when the ejector fan does not work, the pressure of the dust exhaust ejector pipe 55 is equal to the pressure in the dust collection cover assembly 5.
Adopt the utility model discloses an air cleaner also is applicable to the blowback system, and when the blowback system was applied to air cleaner, gas outlet 8 was connected with the tee bend pipeline, and a interface of tee bend pipeline links to each other with the engine air inlet pipeline, and another interface links to each other with the blowback system. When the back flushing system is operated, the back flushing system blows clean compressed air into a filter element cavity in the safety filter element from the air outlet 8, the compressed air passes through the safety filter element and the main filter element 2, and dust pollutants deposited on the outer surface of the main filter element 2 are stripped; the stripped dust and dirt are partially dropped onto the small tapered dust collecting surface 3131 of the upper cover 31 of the pre-filter assembly 3 along with the compressed air fluid directly flowing out of the cyclone tube 32 to the dust discharge valve 56 by the combined action of gravity and the compressed air fluid, and the dust and dirt are dropped along the inclined surface and collected in the cyclone tube 32 and flow out of the cyclone tube 32 to the dust discharge valve 56 by the action of gravity due to the inclined angle of the small tapered dust collecting surface 3131. Under the pressure of the compressed air, the dust exhaust lip 57 of the dust exhaust valve 56 is opened, and most of dust pollutants in the dust exhaust valve 56 are directly exhausted from the dust exhaust lip 57; a portion of the dust contaminants within the dust exhaust valve 56 fall onto the dust exhaust surface 53 and slide along the dust exhaust surface under the force of gravity to be discharged from the dust exhaust lip 57.
Adopt the utility model discloses an air cleaner sets up small-size toper collection dirt face 3131 on the upper cover 31 of prefiltering assembly 3, and the dust discharge face 53 of the lid 51 of collection dirt lid assembly 5 is for having the inclined plane at inclination, ladder face or decurrent curved surface, and the pollutant such as dust, grains of sand that fall on above can the landing in cyclone tube 32 under the effect of gravity, then gets into collection dirt lid assembly 5, in time discharges from dust discharge valve 56. The pollutants are discharged in time, the deposition of the pollutants is avoided, the maintenance period of the air filter is prolonged, and the maintenance cost is reduced.
The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention.
Claims (9)
1. The utility model provides a toper collection dirt face structure of air cleaner which characterized in that: the cyclone tube (32) is arranged in the hollow tube (313) of the upper cover (31), the upper end part of the hollow tube (313) is provided with a conical dust collecting surface (3131), and the conical dust collecting surface (3131) is positioned above the cyclone tube (32).
2. The tapered dust collecting surface structure of an air cleaner according to claim 1, wherein: the cone-shaped dust collecting surface (3131) is a cone-shaped dust collecting surface or a pyramid-shaped dust collecting surface.
3. The tapered dust collecting surface structure of an air cleaner according to claim 1, wherein: the top ends of the adjacent conical dust collecting surfaces (3131) are connected through V-shaped zigzag edges.
4. The tapered dust collecting surface structure of an air cleaner according to claim 1, wherein: the top ends of the adjacent conical dust collecting surfaces (3131) are connected to form a horizontal edge.
5. The tapered dust collecting surface structure of an air cleaner according to claim 1, wherein: the lower part of the cyclone tube (32) containing the cyclone sheet (321) is positioned in a cyclone tube sleeve (341), the cyclone tube sleeve (341) is integrated on the lower cover (34), the cyclone tube sleeve (341) and the lower cover (34) are integrally formed, and a reinforcing rib (344) is arranged between the outer surfaces of the adjacent cyclone tube sleeves (341).
6. The tapered dust collecting surface structure of an air cleaner according to claim 1, wherein: the periphery of the swirl tube (32) is integrated with the swirl plate (321), and the swirl tube (32) and the swirl plate (321) are integrally formed.
7. The tapered dust collecting surface structure of an air cleaner according to claim 1, wherein: a protruding reverse buckle (317) is arranged on the inner wall (316) of the hollow tube (313), and after the swirl tube (32) is inserted into the hollow tube (313), the reverse buckle (317) is in interference fit with the outer cylindrical surface of the swirl tube (32).
8. The tapered dust collecting surface structure of an air cleaner according to claim 7, wherein: the outer wall (325) of the cyclone tube (32) is provided with a reverse buckle II (324), and after the cyclone tube (32) is inserted into the hollow tube (313), the reverse buckle II (324) is in interference fit with the inner wall (316) of the hollow tube (313); the first reverse buckle (317) and the second reverse buckle (324) are arranged in a staggered height mode to realize interlocking.
9. The tapered dust collecting surface structure of an air cleaner according to claim 1, wherein: the bottom surface (319) of the hollow tube (313) is a horizontal plane; the periphery of the cyclone tube (32) is provided with a circle of limiting boss (323), the top surface of the limiting boss (323) is a horizontal plane and is matched with the bottom surface (319) of the hollow tube (313) to realize the limiting in the vertical direction.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005553A (en) * | 2019-05-28 | 2019-07-12 | 无锡亿利环保科技有限公司 | The taper dust face structure of air cleaner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005553A (en) * | 2019-05-28 | 2019-07-12 | 无锡亿利环保科技有限公司 | The taper dust face structure of air cleaner |
| CN110005553B (en) * | 2019-05-28 | 2024-04-02 | 无锡亿利环保科技有限公司 | Conical dust collecting surface structure of air filter |
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