CN217887097U - Filter - Google Patents
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- CN217887097U CN217887097U CN202221707994.7U CN202221707994U CN217887097U CN 217887097 U CN217887097 U CN 217887097U CN 202221707994 U CN202221707994 U CN 202221707994U CN 217887097 U CN217887097 U CN 217887097U
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Abstract
The utility model discloses a filter, which comprises a shell, a filter body and a filter cover, wherein the shell is provided with a liquid inlet and a liquid outlet; at least two filter elements axially stacked inside the housing, each filter element comprising two sets of depth filter media sealed at their outer edges with an opening formed in the center; the inner surface of the shell is provided with annular convex ribs which are opposite in the axial direction, and the liquid inlet and the liquid outlet are respectively arranged at the radial inner side and the radial outer side of the annular convex ribs; a support ring is arranged between the adjacent filter elements; annular protruding muscle and support ring are all pressed in the periphery of trompil, and both at least partial axial is just right to make annular protruding muscle and support ring form the squeezing action to the trompil periphery, form extrusion seal between annular protruding muscle and filter element, filter element and support ring, with inlet and the sealed interval of liquid outlet. The utility model discloses a cooperation of protruding muscle of annular and support ring forms the extrusion to filter element, realizes the sealed between casing and the filter element, has reduced the quantity of spare part, and processing is simple, with low costs, and the filter effect is good.
Description
Technical Field
The utility model belongs to the technical field of filter equipment, especially, relate to a filter.
Background
Chinese utility model patent CN215387936U discloses a filter device, including the casing with be located the filter assembly of casing, wherein, filter assembly's structure as follows: a plurality of filter unit axial interval cover are in the periphery of center tube, install first sealing washer and clamp plate on the top of center tube, the inside screw rod that passes center tube and clamp plate that still is equipped with of casing, the top of a plurality of filter unit's is stretched out on the top of screw rod to pass through the screw thread installation fastener in the top of screw rod, and still be equipped with the elastic component between fastener and the clamp plate, the fastener passes through the elastic component and presses the clamp plate, the clamp plate presses first sealing washer, and then realizes the seal assembly between clamp plate and the center tube top. More importantly, due to the pressing action of the fastening piece and the elastic piece, the pressing plate also has a downward pressing action on the central pipe so as to inhibit the central pipe from expanding upwards in the axial direction and ensure that adjacent filter units form a compression seal at the area of the outer periphery of the central pipe all the time. In addition, a second sealing ring is additionally arranged between the bottom end of the central pipe and the installation position of the central pipe in the shell, and therefore the bottom end of the central pipe and the installation position of the central pipe are installed in a sealing mode.
In this filter device, the housing serves only to accommodate the filter unit. That is, in order to realize the sealing stack between the adjacent filter units and the sealing of the top end and the bottom end of the central tube, the fittings of the first sealing ring, the pressing plate, the fastening piece, the elastic piece and the second sealing ring are additionally provided, on one hand, the number of the fittings is large, the processing and manufacturing are complicated, the cost is high, and on the other hand, the fittings increase the assembly complexity.
Therefore, it is necessary to change the stacking and sealing manner of the filter units in the housing in the filter device, and simplify the sealing structure in the housing.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a simple and convenient sealing structure and a filter with good sealing effect of a filter element in a shell.
The utility model provides a technical scheme that its technical problem adopted is: a filter, comprising a filter body and a filter cover,
a housing having a liquid inlet and a liquid outlet;
at least two filter elements axially stacked inside the housing, each filter element comprising two sets of depth filter media sealed at their outer edges and having an opening formed at its center communicating with the inside of the filter element;
the inner surface of the shell is provided with annular convex ribs which are opposite in the axial direction, and the liquid inlet and the liquid outlet are respectively arranged at the radial inner side and the radial outer side of the annular convex ribs;
a support ring is arranged between the adjacent filter elements;
the annular convex rib and the support ring are both pressed on the periphery of the opening, and at least part of the annular convex rib and the support ring are axially opposite, so that the annular convex rib and the support ring can extrude the periphery of the opening of the filter element, extrusion sealing is formed between the annular convex rib and the filter element adjacent to the shell and between the filter element and the support ring, and the liquid inlet and the liquid outlet are sealed and spaced.
In the filter provided by the utility model, annular convex ribs which are arranged oppositely in the axial direction are formed on the inner surface of the shell, the support ring is clamped between the adjacent filter elements, the annular convex ribs which are arranged oppositely and the support ring between the adjacent filter elements form opposite extrusion action on the filter elements, thus realizing the sealing stacking between the adjacent filter elements, the sealing and pressing between the filter elements adjacent to the shell and the shell, and simultaneously realizing the sealing interval of the liquid inlet and the liquid outlet; the utility model discloses an among the filter, filter element's sealed stacking only realizes through support ring between the adjacent filter element and the protruding muscle of integrative annular of forming inside the casing, compares in current filter equipment, has left out the accessory, the quantity of the spare part that has significantly reduced, and manufacturing is more simple and convenient, cost reduction, and the equipment process of filter also obtains simplifying to provide reliable sealing performance.
Furthermore, the radial width of the support ring is greater than that of the annular convex rib, and the projection of the annular convex rib in the horizontal direction falls in the projection of the support ring in the horizontal direction.
The whole radial direction of the annular convex rib is opposite to the axial direction of the support ring, so that the extrusion area of the annular convex rib and the support ring to the deep layer filter medium is increased, and a good extrusion sealing effect on the filter element is ensured.
Furthermore, the number of the support rings is two or more, and the axial heights of at least two support rings are different.
Because of the production material reason of deep filter medium, certain deviation can appear in its thickness, for guaranteeing that the filter can provide sufficient filter area, need guarantee sufficient quantity filter element, still need to guarantee to form effectual extrusion seal to filter element simultaneously, the support ring of different axial height can adapt to the filter element of different thicknesses, guarantees to form good extrusion seal to filter element.
Furthermore, the surfaces of the two sides of the support ring are provided with first convex ribs which are opposite in position, at least part of the first convex ribs can be opposite to the annular convex ribs in the axial direction, and the first convex ribs and the annular convex ribs or the first convex ribs of the adjacent support ring form extrusion sealing on the periphery of the opening of the filter element.
The first convex rib can increase the pressure effect of the support ring on the deep layer filter medium and improve the sealing performance.
Furthermore, the annular convex rib comprises a main body connected with the inner surface of the shell and a pressing part formed at the tail end of the main body, the tail end face of the pressing part is an annular plane with the radial width smaller than that of the main body, and the annular plane is in transition connection with the two side walls of the main body through conical surfaces.
The width of the annular plane is smaller than that of the main body, so that the pressing part can increase the pressure effect of the annular convex rib on the deep-layer filtering medium, and the sealing performance is improved.
Furthermore, each group of deep filtering media comprises two layers of deep filtering media, and a spacing ring is arranged between the two layers of deep filtering media, is positioned on the periphery of the opening and is axially opposite to at least part of the support ring and/or the annular convex rib.
After the filter is integrally assembled, the annular convex ribs, the spacing ring and the supporting ring all extrude the area of the periphery of the opening of the filter element, and good extrusion sealing is formed at the corresponding position.
Furthermore, the two side surfaces of the spacing ring are provided with second convex ribs, and at least part of the second convex ribs can be axially embedded into the deep-layer filtering media so as to realize the positioning installation between the second convex ribs and the adjacent deep-layer filtering media.
The second convex rib is embedded into the deep-layer filtering medium and then fixed, so that the radial offset of the spacing ring relative to the deep-layer filtering medium is avoided during assembly, and the positioning and installation between the spacing ring and the opening at the center of the adjacent deep-layer filtering medium are realized; the spacer ring is prevented from moving randomly, so that the spacer ring is far away from the open hole.
Furthermore, a flow guide part is arranged in the filter element and at least comprises an annular supporting part, the supporting part is at least partially opposite to the supporting ring and/or the annular convex rib, and the supporting part is provided with a liquid through flow passage for communicating the opening with the inside of the filter element.
Supporting part and support ring, annular protruding muscle, spacer ring cooperation form to the trompil periphery extrusion of filter element sealed, and lead to the liquid runner and be used for guiding filtrating to flow to the trompil of filter element's center department or with the raw materials liquid guide of the trompil of filter element center department its inside each department, guarantee that liquid flow is smooth and easy in the filter element.
Furthermore, the supporting part comprises a plurality of flow guide ribs extending along the radial direction and a first connecting block for connecting adjacent flow guide ribs, and the first connecting block and the adjacent flow guide ribs are arranged in a surrounding manner to form the liquid flowing channel; the liquid flowing channel comprises an upper liquid flowing channel positioned above the first connecting block and a lower liquid flowing channel positioned below the first connecting block.
The flow guide ribs extend along the radial direction, and the first connecting blocks are arranged circumferentially, so that the structural strength is high, and the liquid can conveniently circulate; the liquid passage is divided into an upper part and a lower part, which can guide liquid to the deep filter media at two sides respectively, thus ensuring the filtering speed and the filtering effect.
Furthermore, the width of each flow guide rib is 1.3-1.7mm, the distance between every two adjacent flow guide ribs is 1.4-1.8mm, and the depth of each upper liquid flow channel and each lower liquid flow channel is 1.8-2.2mm.
The width of above-mentioned water conservancy diversion muscle sets up, the interval setting between the adjacent water conservancy diversion muscle to and the degree of depth setting that leads to the liquid runner, make the supporting part provide good supporting role for deep filtration medium under, avoid deep filtration medium to sink and lead to the jam that leads to the liquid runner and lead to the liquid runner down, guarantee the flow of liquid in filter element.
Further, the flow guide ribs radially extend to the outer edge of the filter element, and the thickness of the flow guide ribs is gradually reduced from the inner ring close to the opening to the outer ring; a plurality of second connecting blocks are distributed on the radial outer side of the first connecting block along the extending direction of the flow guide ribs, the width of each second connecting block is smaller than that of the first connecting block, and the thickness of the first connecting block and the thickness of the second connecting block are smaller than the minimum thickness of the flow guide ribs.
The structure that the thick outer lane of water conservancy diversion spare inner circle is thin adapts to filter element's inner space structure, and the inner circle can be just right with support ring, spacer ring axial, forms the extrusion sealing effect to deep filtration medium, and sealed effect is better, and the outer lane can form good supporting role to deep filtration medium, will lead to the radial length extension of liquid runner moreover, and leads to the liquid runner and communicate between the adjacent second connecting block for the flow of filtering liquid is more smooth and easy.
Further, the housing may include a housing body,
a main body part including a bottom plate and a lower sidewall integrally connected;
an encapsulation portion including a top plate and an upper sidewall integrally connected;
the lower side wall and the upper side wall are hermetically connected to form a closed shell;
the bottom plate and/or the top plate form a first through hole and a plurality of second through holes which are distributed at intervals along the circumferential direction of the first through hole;
the first through hole is arranged corresponding to the opening;
one of the first through hole and the second through hole is a liquid inlet, and the other one of the first through hole and the second through hole is a liquid outlet.
The shell consists of a main body part and a packaging part, so that fewer split parts are provided, leakage risk points are fewer, the overall sealing performance is more reliable, and the shell is convenient to process and manufacture; when the filter is singly used, a first through hole and/or a second through hole can be formed in any one of the bottom plate and the top plate, when the filter is used in a plurality of up-and-down superposed modes, the first through hole and the second through hole can be formed in the bottom plate and the top plate at the same time, the first through hole can be a liquid inlet and a liquid outlet, and the use forms are various.
Furthermore, the inner side of the annular convex rib forms a limit rib extending axially, the tail ends of the limit ribs of the top plate and the bottom plate are axially connected, the filter element and the support ring are sleeved at the periphery of the limit rib at intervals, and the inner wall of the opening is abutted to the periphery of the limit rib.
The tail ends of the limiting ribs on the top plate and the bottom plate are axially connected to realize the axial assembly connection of the top plate and the bottom plate, and the tail ends of the two limiting ribs are mutually pulled, so that the opposite extrusion effect on the filter element is increased, and the center parts of the top plate and the bottom plate are prevented from expanding and tilting outwards; the inner wall of the opening is abutted to the periphery of the limiting rib, so that the filter element can be positioned and stacked, and radial deviation cannot be generated.
Further, the periphery of the depth filter medium is sealed by a plastic wrapping, and the surface of the wrapping is provided with a spacing column to form a communication gap between adjacent filter elements.
The spacing post is used for maintaining the clearance of adjacent filter element, avoids adjacent filter element paste together, leads to the clearance disappearance, and the fluid can't pass through.
Furthermore, the two end faces of the spacing ring and the supporting ring are connected with the inner side wall and the outer side wall through chamfers.
The chamfer is generally an inclined surface, because the joint of the two end surfaces and the inner and outer side walls of the spacing ring and the supporting ring corresponds to the boundary of the squeezed area of the deep filtration medium, the joint is easy to break, and leakage is caused, when the two end surfaces and the inner and outer side walls of the spacing ring and the supporting ring are connected through the chamfer, the deformation at the boundary of the squeezed area of the deep filtration medium becomes more moderate, and the risk of breaking at the joint is reduced.
The beneficial effects of the utility model are that: the filter element is extruded by the matching of the annular convex rib and the support ring, so that the sealing between the shell and the filter element is realized, complicated accessories are omitted, the number of parts is greatly reduced, the processing and manufacturing are simpler, the cost is reduced, the assembly process of the filter is simplified, and meanwhile, the liquid inlet and the liquid outlet are sealed and spaced, so that the filtering effect is ensured; the support rings with different axial heights can adapt to filter elements with different thicknesses, so that good extrusion sealing is formed on the filter elements; the setting of water conservancy diversion spare not only provides good supporting role for filter element, and supplementary annular protruding muscle is in pairs with the better extrusion sealing effect of filter element with the support ring shape moreover, and it is smooth and easy to guarantee in addition that the interior liquid of filter element flows.
Drawings
Fig. 1 is a top perspective view of the filter provided by the present invention.
Fig. 2 is a bottom perspective view of the filter provided by the present invention.
Fig. 3 is a cross-sectional view of the filter provided by the present invention.
Fig. 4 is an enlarged view of a structure in fig. 3.
Fig. 5 is a perspective view of the middle support ring of the present invention.
Fig. 6 is a cross-sectional view of the support ring of the present invention.
Fig. 7 is a perspective view of the intermediate spacer ring of the present invention.
Fig. 8 is a cross-sectional view of the spacer ring of the present invention.
Fig. 9 is a perspective view of the middle deflector of the present invention.
Fig. 10 is an enlarged view of the structure at B in fig. 9.
Fig. 11 is a perspective view of a filter element according to the present invention.
Fig. 12 is a sectional view of the main body of the present invention.
Fig. 13 is a perspective view of the middle body portion of the present invention.
Fig. 14 is a sectional view of the package of the present invention.
Fig. 15 is a perspective view of the package part of the present invention.
The filter comprises a shell 1, a body 11, a bottom plate 111, a lower side wall 112, a packaging part 12, a top plate 121, an upper side wall 122, a first through hole 13, a second through hole 14, an annular convex rib 2, a body 21, a pressing part 22, an annular plane 221, a conical surface 23, a limiting rib on the top plate 24, a limiting rib on the bottom plate 25, a support ring 3, a first convex rib 31, a spacer ring 4, a second convex rib 41, a flow guide part 5, a support part 51, a flow guide rib 511, a first connecting block 512, a liquid through channel 52, an upper liquid through channel 521, a lower liquid through channel 522, a second connecting block 53, a filter element 6, a deep filter medium 61, an opening 611, a plastic wrapping 62, a spacing column 63 and a flow gap 64.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, a filter includes a housing 1, and at least two filter elements 6 axially stacked inside the housing 1. The shell 1 is provided with a liquid inlet and a liquid outlet; each filter element 6 comprises two sets of depth filter media 61, the outer edges of the filter elements 6 being sealed and forming an opening 611 in the centre thereof communicating with the interior of the filter element 6, the openings 611 of adjacent filter elements 6 being diametrically opposed one above the other when axially stacked.
The inner surface of the shell 1 is provided with annular convex ribs 2 which are opposite in the axial direction, namely the annular convex ribs 2 are formed on the inner top surface and the inner bottom surface of the shell 1, and the two annular convex ribs 2 are opposite up and down. The liquid inlet and the liquid outlet are respectively arranged at the radial inner side and the radial outer side of the annular convex rib 2. Between adjacent filter elements 6 there is arranged a support ring 3.
In the present embodiment, the depth filter medium 61 is composed of cellulose, a filter aid, and a resin binder. That is, depth filter media 61 is relatively loose in texture and does not seal simply by stacking itself on top of one another. At this moment, the annular convex rib 2 and the support ring 3 made of hard materials are both pressed on the periphery of the opening 611, and at least parts of the annular convex rib and the support ring 3 are axially opposite to each other, so that the annular convex rib 2 and the support ring 3 have an extrusion effect on the periphery of the opening 611 of the filter element 6, extrusion sealing is formed between the annular convex rib 2 and the filter element 6 adjacent to the shell 1 and between the filter element 6 and the support ring 3, an area for forming the extrusion sealing is just positioned on the periphery of the opening 611, and the liquid inlet and the liquid outlet are positioned on two sides of the annular convex rib 2, so that the liquid inlet and the liquid outlet are sealed and spaced while the extrusion sealing is formed.
Therefore, through the cooperation of annular protruding muscle 2 and support ring 3, form the extrusion to the periphery of trompil 611 of filter element 6, realize the sealed encapsulation between casing 1 and the filter element 6 and between the adjacent filter element 6, and left out complicated accessory, greatly reduced the quantity of spare part, manufacturing is simpler, cost reduction, and the equipment process of filter also obtains simplifying, and meanwhile, inlet and outlet are sealed the interval, guarantee the filter effect.
As shown in fig. 4, the radial width of the support ring 3 is greater than the radial width of the annular rib 2, and the projection of the annular rib 2 in the horizontal direction falls within the projection of the support ring 3 in the horizontal direction. The whole radial width direction of annular protruding muscle 2 all can form the axial extrusion with support ring 3 promptly, and make full use of annular protruding muscle 2 increases extrusion area between them, guarantees to form good extrusion sealing effect to filter element 6.
In the present embodiment, the number of the support rings 3 is two or more, and the axial heights of at least two support rings 3 are different, that is, the axial heights of all the support rings 3 in the housing 1 are not necessarily the same, different types of support rings 3 may be used in one housing 1, and the difference between the different types of support rings 3 is that the support rings have different axial heights. Because of the material of the depth filter medium 61, the thickness of the depth filter medium may vary to a certain extent, that is, the thickness of the filter element 6 may vary to ensure that the filter provides a sufficient filtering area, a sufficient number of filter elements 6 may be ensured, and the annular ribs 2 and the support ring 3 may press the filter element 6 sufficiently to form an effective seal, and the support ring 3 may be made in different sizes to accommodate filter elements 6 of different thicknesses. For example, if the filter element 6 is thick, the support ring 3 having a small axial height is used, and if the filter element 6 is thin, the support ring 3 having a large axial height is used.
As shown in fig. 5 and 6, the support ring 3 is annular, and the two side surfaces of the support ring are provided with first ribs 31 facing each other, as shown in fig. 4, at least a part of the first ribs 31 may face the annular rib 2 axially, so that the first ribs 31 and the annular rib 2, or the first ribs 31 of the adjacent support ring 3, form a compression seal to the periphery of the opening 611 of the filter element 6.
The two side surfaces of the support ring 3 and the inner and outer side walls may also be connected by chamfers, which are typically bevel chamfers or arc chamfers, so that the deformation at the boundary of the area where the depth filter medium 61 is pressed by the support ring 3 becomes more gradual, reducing the risk of fracture there.
As shown in fig. 4, the annular rib 2 includes a main body 21 connected to the inner surface of the housing 1, and a pressing portion 22 formed at the end of the main body 21, the end surface of the pressing portion 22 is an annular flat surface 221 having a radial width smaller than that of the main body 21, and the annular flat surface 221 is transitionally connected to two side walls of the main body 21 by a tapered surface 23. In other words, the longitudinal section of the pressing portion 22 is a trapezoid having a small top and a large bottom. The structural design can increase the pressure effect of the annular convex rib 2 on the filter element 6 and improve the sealing performance.
Each group of deep filtration media 61 comprises two layers of deep filtration media 61, a spacer ring 4 is arranged between the two layers of deep filtration media 61, and the spacer ring 4 is positioned at the periphery of the opening 611 and is axially opposite to at least part of the support ring 3, or is axially opposite to at least part of the annular convex rib 2, or is axially opposite to at least part of the support ring 3 and the annular convex rib 2 respectively.
As shown in fig. 7 and 8, the spacer ring 4 is annular, the second ribs 41 are disposed on the two side surfaces of the spacer ring 4, at least a portion of the second ribs 41 can be axially embedded in the depth filter media 61, in other words, the second ribs 41 are embedded in the depth filter media 61 and then fixed relative to the latter, so as to prevent the spacer ring 4 from moving relative to each other and even falling off during assembly, thereby realizing positioning and installation between the spacer ring 4 and the adjacent depth filter media 61, and further realizing positioning and installation between the spacer ring 4 and the adjacent depth filter media 61. It is of course also avoided that the spacer ring 4 moves freely, causing it to move away from the opening 611.
The surfaces of the two sides of the spacing ring 4, the inner side wall and the outer side wall are connected through chamfers, the chamfers are generally bevel chamfers or arc chamfers, so that the deformation of the boundary of the extrusion area of the deep layer filtering medium 61 by the spacing ring 4 is more moderate, and the risk of fracture of the boundary is reduced.
As shown in fig. 11, the outer periphery of the depth filter media 61 is sealed by a plastic wrapping 62, and the surface of the plastic wrapping 62 is provided with a spacer 63, and the spacer 63 extends axially upward or axially downward to prevent the upper and lower filter elements 6 from approaching or even sticking to each other, and to ensure that a flow gap 64 is formed between the adjacent filter elements 6. In the present embodiment, the number of the spacers 63 is plural, and they are arranged at regular intervals along the outer circumference of the filter element 6.
The filter element 6 is provided with a flow guide 5, as shown in fig. 9, which at least includes an annular support 51, the support 51 at least partially faces the support ring 3, or the support 51 at least partially faces the annular rib 2, or the support 51 at least partially faces the support ring 3 and the annular rib 2, respectively, so as to cooperate with the support ring 3 or the annular rib 2 or the support ring 3 and the annular rib 2 to form a compression seal for the filter medium 61 of the filter element 6, and the support 51 has a liquid passage 52 for communicating the opening 611 with the inside of the filter element 6.
Specifically, the support portion 51 includes a plurality of air guiding ribs 511 extending along the radial direction, and a first connecting block 512 connecting adjacent air guiding ribs 511, where the first connecting block 512 may be an integral annular structure and is connected to all the air guiding ribs 511 in a penetrating manner, and the number of the first connecting blocks 512 is one; or a split structure, in which case the number of the first connecting blocks 512 is multiple, and the first connecting blocks are combined to connect all the air guiding ribs 511.
The first connection block 512 and the adjacent flow guiding ribs 511 are surrounded to form a liquid passing channel 52, which includes an upper liquid passing channel 521 located above the first connection block 512 and a lower liquid passing channel 522 located below the first connection block 512.
The width of the flow guiding ribs 511 is 1.3-1.7mm, i.e. in fig. 10, L =1.3-1.7mm, preferably L =1.5mm; the distance between the adjacent flow guide ribs 511 is 1.4-1.8mm, i.e. S =1.4-1.8mm, preferably S =1.6mm; the upper liquid flow channel 521 and the lower liquid flow channel 522 are both 1.8-2.2mm deep, i.e., H =1.8-2.2mm, preferably H =2.0mm.
The width of the flow guiding ribs 511, the distance between the adjacent flow guiding ribs 511, and the depth of the liquid passing channel 52 are set, so that the support part 51 provides a good support function for the filter medium 61 of the filter element 6, the blockage of the upper liquid passing channel 521 and the lower liquid passing channel 522 caused by the collapse of the deep filter medium 61 is avoided, the effective flow of the liquid in the filter element 6 is ensured, and the flow guiding member 5 is favorable for guiding the filtrate to flow to the opening 611 at the center of the filter element 6 or guiding the raw material liquid of the opening 611 at the center of the filter element 6 to various positions inside the filter element.
The flow guiding ribs 511 extend to the outer edge of the filter element 6 in the radial direction, and the thickness of the flow guiding ribs 511 is gradually reduced from the inner ring close to the opening 611 to the outer ring; a plurality of second connecting blocks 53 are distributed on the radial outer side of the first connecting block 512 along the extending direction of the flow guiding ribs 511, the second connecting blocks 53 connect the outer sides of the adjacent flow guiding ribs 511, the width of each second connecting block 53 is smaller than that of the first connecting block 512, and the thicknesses of the first connecting block 512 and the second connecting block 53 are smaller than the minimum thickness of the flow guiding ribs 511, so that the first connecting block 512 and the second connecting block 53 and the adjacent flow guiding ribs 511 can form a liquid flowing channel in a surrounding manner, and specifically, the liquid flowing channel 52 extends the whole flow guiding part 5 radially outwards.
The structure that the thick outer lane of water conservancy diversion spare 5 inner circle is thin adapts to the inner space structure of filter element 6, and the inner circle can be just right with support ring 3, spacer ring 4 axial, forms the extrusion sealing effect to deep filtration medium 61, and sealed effect is better, and the outer lane can form good supporting role to deep filtration medium 61, will lead to the radial length extension of liquid runner 52 in addition, and leads to and communicate between liquid runner 52 and the adjacent second connecting block 53 for the flow of filtering liquid is more smooth and easy.
For the convenience of assembly, the housing 1 includes a main body 11 and a packaging part 12, the main body 11 includes a bottom plate 111 and a lower side wall 112 integrally connected to the bottom plate 111, the packaging part 12 includes a top plate 121 and an upper side wall 122 integrally connected to the top plate 121, and after the lower side wall 112 and the upper side wall 122 are hermetically connected, the closed housing 1 is formed, and the hermetic connection may be specifically welding.
As shown in fig. 2, the bottom plate 111 forms a first through hole 13 and a second through hole 14, the first through hole 13 is located at the center of the bottom plate 111 and is opposite to the opening 611; the number of the second through holes 14 is plural, and the second through holes are arranged at intervals along the outer periphery of the first through hole 13. In this embodiment, the first through hole 13 is a liquid inlet, and the second through hole 14 is a liquid outlet. Of course, in other embodiments, the first through hole 13 may be a liquid outlet, and the second through hole 14 may be a liquid inlet.
As shown in fig. 1, the top plate 121 forms a first through hole 13 and a second through hole 14, the first through hole 13 is located at the center of the top plate 121 and opposite to the opening 611; the number of the second through holes 14 is plural, and the second through holes are arranged at intervals along the outer periphery of the first through hole 13.
When the filter is used singly, the first through hole 13 and the second through hole 14 may be formed in either one of the bottom plate 111 and the top plate 121, which herein means that the first through hole 13 is formed in the bottom plate 111 and the second through hole 14 is formed in the top plate 121, or the second through hole 14 is formed in the bottom plate 111 and the first through hole 13 is formed in the top plate 121, or both the first through hole 13 and the second through hole 14 are formed in the bottom plate 111 without providing the top plate 121, or both the first through hole 13 and the second through hole 14 are formed in the top plate 121 without providing the bottom plate 111; when a plurality of filters are stacked up and down for use, the first through hole 13 and the second through hole 14 can be formed in the bottom plate 111 and the top plate 121 at the same time, so that after the plurality of filters are stacked in a sealing manner, the adjacent first through hole 13 and second through hole 14 are connected in a sealing manner to form a corresponding liquid inlet flow path and a corresponding liquid outlet flow path.
In order to facilitate the assembly of the main body part 11 and the packaging part 12, the inner side of the annular convex rib 2 of the top plate 121 is provided with a limiting rib 24 axially extending towards the direction of the bottom plate 111, the inner side of the annular convex rib 2 of the bottom plate 111 is provided with a limiting rib 25 axially extending towards the direction of the top plate 121, after the sealing assembly is completed, the tail end of the limiting rib 24 on the top plate is axially connected with the tail end of the limiting rib 25 on the bottom plate, so that the axial assembly connection of the top plate 121 and the bottom plate 111 is realized, and the tail ends of the two limiting ribs are mutually pulled, so that the opposite extrusion effect on the filter element 6 is increased, and the outward expansion and the tilting of the centers of the top plate 121 and the bottom plate 111 are avoided.
The filter element 6 and the support ring 3 are sleeved at the peripheries of the limiting ribs 24 and 25 at intervals, and the inner wall of the opening 611 is abutted against the peripheries of the limiting ribs 24 and 25, so that the filter element 6 can be positioned and stacked without radial deviation.
Of course, the inner walls of the central holes of the support ring 3, the flow guide piece 5 and the spacer ring 4 can also abut against the peripheries of the limiting ribs 24 and 25 to realize radial limiting, and the annular convex rib 2 and the spacer ring 4 are ensured to be opposite to at least partial area of the support ring 3 and the supporting part 51 of the flow guide piece 5, so that sufficient-strength extrusion is generated in the corresponding area, and then the sealing stack between the adjacent filter elements 6 and the sealing press between the filter element 6 adjacent to the shell 1 and the shell 1 are formed.
The utility model discloses an encapsulation process is, set up spacer ring 4 between two-layer deep filtration medium 61 of each group, set up water conservancy diversion spare 5 between two sets of deep filtration medium 61, pile up filter element 6, support ring 3 to the spacing muscle 25 periphery on the bottom plate in proper order, its pile up height is greater than the height of spacing muscle 25 on bottom plate 111, with the terminal of spacing muscle 24 on roof 121 and the terminal axial connection of spacing muscle 25 on the bottom plate, again with lower lateral wall 112 and upper lateral wall 122 welded fastening, form confined casing 1; at this time, the annular rib 2, the spacer ring 4, the support part 51 of the deflector 5 and the support ring 3 are matched to form a compression seal for the filter element 6.
The liquid to be filtered enters the opening 611 from the first through hole 13, flows to the inner surface of the deep layer filtering medium 61 through the liquid passing flow channel 52 of the flow guide 5, is filtered by the deep layer filtering medium 61, enters the housing 1, and is discharged through the second through hole 14.
Of course, the liquid to be filtered may also enter the housing 1 from the second through hole 14, and after being filtered by the depth filter 61, the liquid flows to the opening 611 through the liquid flow passage 52 of the flow guide 5, and then is discharged through the first through hole 13.
The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.
Claims (15)
1. A filter for a gas turbine, comprising,
a housing having a liquid inlet and a liquid outlet;
at least two filter elements axially stacked inside the housing, each filter element comprising two sets of depth filter media sealed at their outer edges and having an opening formed at its center communicating with the inside of the filter element;
it is characterized in that the preparation method is characterized in that,
the inner surface of the shell is provided with annular convex ribs which are opposite in the axial direction, and the liquid inlet and the liquid outlet are respectively arranged at the radial inner side and the radial outer side of the annular convex ribs;
a support ring is arranged between the adjacent filter elements;
annular protruding muscle and support ring are all pressed in the periphery of trompil, and both at least partial axial is just right to make annular protruding muscle and support ring form the squeezing action to filter element's trompil periphery, form extrusion seal between annular protruding muscle and the adjacent filter element of casing, between filter element and the support ring, and seal liquid inlet and liquid outlet and separate.
2. The filter of claim 1, wherein: the radial width of the support ring is larger than that of the annular convex rib, and the projection of the annular convex rib in the horizontal direction falls in the projection of the support ring in the horizontal direction.
3. A filter according to claim 1 or 2, wherein: the number of the support rings is two or more, and the axial heights of at least two support rings are different.
4. A filter according to claim 1 or 2, wherein: the two side surfaces of the support ring are provided with first convex ribs which are opposite in position, at least part of the first convex ribs can be opposite to the annular convex ribs in the axial direction, and the first convex ribs and the annular convex ribs or the first convex ribs of the adjacent support ring form extrusion sealing on the periphery of the opening of the filter element.
5. A filter according to claim 1 or 2, wherein: the annular convex rib comprises a main body connected with the inner surface of the shell and a pressing part formed at the tail end of the main body, the tail end face of the pressing part is an annular plane with the radial width smaller than that of the main body, and the annular plane is in transition connection with the two side walls of the main body through conical surfaces.
6. The filter of claim 1, wherein: each group of deep filter media comprises two layers of deep filter media, a spacing ring is arranged between the two layers of deep filter media, is positioned on the periphery of the opening and is at least partially axially opposite to the support ring and/or the annular convex rib.
7. The filter of claim 6, wherein: the two side surfaces of the spacing ring are provided with second convex ribs, and at least part of the second convex ribs can be embedded into the deep-layer filtering media axially so as to realize the positioning installation between the second convex ribs and the adjacent deep-layer filtering media.
8. The filter of claim 1, wherein: the filter element is internally provided with a flow guide part which at least comprises an annular supporting part, the supporting part is at least partially opposite to the supporting ring and/or the annular convex rib, and the flow guide part is provided with a liquid through flow passage for communicating the opening with the inside of the filter element.
9. The filter of claim 8, wherein: the supporting part comprises a plurality of flow guide ribs extending along the radial direction and a first connecting block for connecting adjacent flow guide ribs, and the first connecting block and the adjacent flow guide ribs are arranged in a surrounding manner to form the liquid flowing channel; the liquid passing channel comprises an upper liquid passing channel positioned above the first connecting block and a lower liquid passing channel positioned below the first connecting block.
10. A filter as claimed in claim 9, wherein: the width of the flow guide ribs is 1.3-1.7mm, the distance between every two adjacent flow guide ribs is 1.4-1.8mm, and the depth of the upper liquid flowing channel and the depth of the lower liquid flowing channel are 1.8-2.2mm.
11. The filter of claim 9, wherein: the flow guide ribs radially extend to the outer edge of the filter element, and the thickness of the flow guide ribs is gradually reduced from the inner ring close to the opening to the outer ring; a plurality of second connecting blocks are distributed on the radial outer side of the first connecting block along the extending direction of the flow guide ribs, the width of each second connecting block is smaller than that of the first connecting block, and the thickness of the first connecting block and the thickness of the second connecting block are smaller than the minimum thickness of the flow guide ribs.
12. The filter of claim 1, wherein: the shell comprises a shell body and a cover body,
a main body part including a bottom plate and a lower sidewall integrally connected;
an encapsulation portion including a top plate and an upper sidewall integrally connected;
the lower side wall and the upper side wall are hermetically connected to form a closed shell;
the bottom plate and/or the top plate form a first through hole and a plurality of second through holes which are distributed at intervals along the circumferential direction of the first through hole;
the first through hole is arranged corresponding to the opening;
one of the first through hole and the second through hole is a liquid inlet, and the other one of the first through hole and the second through hole is a liquid outlet.
13. The filter of claim 12, wherein: the inner side of the annular convex rib forms a limit rib extending axially, the tail ends of the limit ribs of the top plate and the bottom plate are axially connected, the filter element and the support ring are sleeved at the periphery of the limit rib at intervals, and the inner wall of the opening is abutted to the periphery of the limit rib.
14. The filter of claim 1, wherein: the periphery of the depth filter media is sealed by a plastic wrap, the surface of which is provided with spacer posts to form a flow gap between adjacent filter elements.
15. The filter of claim 6, wherein: the two end faces, the inner side wall and the outer side wall of the spacing ring and the support ring are connected through chamfers.
Priority Applications (1)
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CN202221707994.7U CN217887097U (en) | 2022-07-01 | 2022-07-01 | Filter |
Applications Claiming Priority (1)
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CN202221707994.7U CN217887097U (en) | 2022-07-01 | 2022-07-01 | Filter |
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