Filtering lamination and filter
Technical Field
The invention relates to the technical field of laminated filters, in particular to a filter laminated sheet and a laminated filter.
Background
The laminated filter is used for filtering liquid containing impurities, and especially for agricultural irrigation, and the filter is set in the head of drip irrigation system. The filter is used for removing various impurities in irrigation water so as to prevent the impurities from blocking all levels of equipment and even causing paralysis and scrapping of the whole micro-irrigation system.
The laminated filter is composed of a housing and a filter laminate. The filter laminations are stacked in the height direction of the housing such that the groove edges on the connecting faces of adjacent filter laminations form a plurality of intersecting points which form a plurality of cavities and irregular passages. The water flow enters the filter after passing through the filter water inlet, the filter lamination is tightly pressed together under the action of spring force and water force when passing through the filter lamination, the impurity particles are trapped at the intersection point of the lamination, and the filtered water flows out of the main channel of the filter.
The traditional disc type filter lamination has the advantages that when in use, water flows outwards and inwards along the radial direction of the filter lamination, the water moves along the gaps on the disc, impurities with different diameters are filtered by sequentially shrinking the gaps on the disc from outside to inside along the radial direction of the filter lamination, but the head loss is large, and the filtering efficiency is low.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of high head loss and low filtering efficiency of the filtering lamination in the prior art, thereby providing the filtering lamination and the filter.
In order to solve the above problems, the present invention provides a filter stack comprising:
the lamination body is provided with a water inlet part and a water outlet part;
The laminated body comprises a plurality of flow guiding pieces, a shortest distance between two adjacent flow guiding pieces and a second distance, wherein the flow guiding pieces are distributed on the laminated body in an array mode along a first direction and a second direction, the first direction and the second direction form an included angle, positive components are arranged along the direction from a water inlet part to a water outlet part and along the first direction, the flow guiding pieces are arranged along the surface of the laminated body in a protruding mode, the two adjacent flow guiding pieces are arranged at intervals along the first direction, the two adjacent flow guiding pieces are arranged at intervals along the second direction, the shortest distance between the two adjacent flow guiding pieces along the second direction is a first distance, the shortest distance between the two adjacent flow guiding pieces along the next group of the first direction is a second distance, and the first distance is larger than the second distance;
the flow passage structure comprises a plurality of first flow passages and a plurality of second flow passages, wherein the first flow passages are arranged in an extending mode along a first direction and are arranged between two adjacent flow guiding pieces along a second direction, the second flow passages are arranged in an extending mode along the second direction and are arranged between two adjacent flow guiding pieces along the first direction, and the first flow passages and the second flow passages are arranged in a staggered mode;
And/or the external water is conveyed to the first runner by the water inlet part and flows out to the water outlet part along the first runner after passing through the second runner.
Optionally, the lamination body is an annular lamination;
The water inlet part is formed on the outer ring of the annular lamination, and the water outlet part is formed on the inner ring of the annular lamination;
The first direction and the radial direction of the annular lamination are arranged at an included angle, and the second direction is along the circumferential direction of the concentric circle of the annular lamination body.
Optionally, an included angle between the first direction and a radial direction of the annular lamination is 0-25 degrees.
Optionally, the cross-sectional dimension of the baffle member decreases gradually in a first direction;
the cross-section size reduction coefficient m is the ratio of the cross-section size of one flow guiding piece to the cross-section size of the next adjacent flow guiding piece along the first direction, and the value range of the cross-section size reduction coefficient m is 0.89< m <1.00.
Optionally, the reduced difference value x is the difference value between the first interval and the second interval, and the value range of the reduced difference value x is 0.02mm < x <0.20mm.
Optionally, the flow guiding piece is an isosceles triangle boss, rounded corners are arranged at end points of the isosceles triangle boss, two side edges of any isosceles triangle boss are respectively connected with the first flow channel, and the bottom edge of any isosceles triangle boss is connected with the second flow channel;
The top angle of the isosceles triangle boss is arranged close to one side of the water inlet part, the bottom edge of the isosceles triangle boss is arranged close to one side of the water outlet part, the bottom edge of the isosceles triangle boss is connected with the second flow channel, and/or the bottom edge of the isosceles triangle boss is arranged close to one side of the water inlet part, and the top angle of the isosceles triangle boss is arranged close to one side of the water outlet part.
Optionally, the laminated body is provided with a plurality of groups, and the plurality of groups of laminated bodies are arranged in a stacked manner along a direction perpendicular to the laminated body.
Optionally, the laminated sheet further comprises a plurality of communication structures which are arranged on the laminated sheet bodies and are used for communicating two adjacent laminated sheet bodies which are arranged in a stacked mode.
The filter lamination is characterized in that the communication structure is a communication hole, the communication hole is arranged between two adjacent diversion pieces along the second direction, the communication hole is a circular through hole, the diameter of the circular communication hole is a first size, and the first size is equal to the shortest distance between two adjacent diversion pieces along the second direction.
A filter comprising said filter stack.
The invention has the following advantages:
1. The invention provides a filter lamination which comprises a lamination body, a plurality of flow guide pieces and a flow passage structure. The lamination body is provided with a water inlet part and a water outlet part; the flow guide pieces are distributed on the laminated body in an array mode along a first direction and a second direction, the first direction and the second direction are arranged at an included angle, positive components are arranged along the direction from the water inlet part to the water outlet part and are arranged between the two adjacent flow guide pieces along the surface of the laminated body in a protruding mode, the two adjacent flow guide pieces are arranged at intervals along the first direction and are arranged at intervals along the second direction, the shortest distance between the two adjacent flow guide pieces along the second direction is a first interval, the shortest distance between the two adjacent flow guide pieces along the next group of the first direction is a second interval, the first interval is larger than the second interval, the flow channel structure comprises a plurality of first flow channels and a plurality of second flow channels, the first flow channels extend along the first direction and are arranged between the two adjacent flow guide pieces along the second direction, the first flow channels and the second flow channels extend along the second direction and are arranged between the two adjacent flow guide pieces along the first direction, the first flow channels and the second flow channels are arranged in a staggered mode, the outside water is conveyed to the water inlet part from the water outlet part to the water outlet part through the first flow channels and the first flow channels to the outside through the first flow channel.
According to the filtering lamination of the structure, external water flows out from the water outlet part after passing through the flow channel structure by the water inlet part, in the process, impurities insoluble in water in the external water can pass through the first interval and the second interval, when the cross section area of the impurities is larger than or equal to the first interval or the second interval, the impurities can be separated at the guide parts by the first interval or the second interval, the shortest distance between two adjacent guide parts in the second direction is gradually reduced along the first direction, and the filtering of the impurities with different cross sections can be realized by the shortest distance between the two adjacent guide parts which are gradually reduced. The first flow channels and the second flow channels which are arranged in a staggered manner in the flow channel structure can provide more flow channel selections for outside water, so that the filtering efficiency is improved, and the filtering time is shortened.
2. The invention provides a filter lamination, wherein the cross-sectional dimension of a flow guiding member is gradually reduced along a first direction, the cross-sectional dimension reduction coefficient m is the ratio of the cross-sectional dimension of one flow guiding member along the first direction to the cross-sectional dimension of the next adjacent flow guiding member, and the value range of the cross-sectional dimension reduction coefficient m is 0.89< m <1.00.
The filter lamination of the structure is characterized in that the distance between two adjacent flow guiding pieces along the second direction is reduced in the first direction, and the flow guiding pieces on the annular lamination along the first direction can be ensured to be arranged at intervals through the structure.
3. The invention provides a filter lamination, which comprises an isosceles triangle boss as a flow guiding piece, wherein the end point of the isosceles triangle boss is rounded.
The filter lamination of the structure can reduce the contact between water flow and the boss, reduce the head loss along the way, form turbulence after the water flow passes through the boss, be favorable for sediment deposition and improve the filtering performance, can form step filtration on the flow passage structure by the structure, and when the flow passage structure is blocked, the water flow can be filtered to other flow passages by the second flow passage, thereby reducing the pressure mutation caused by the blocking, ensuring the straight flow passage by the passage structure, forming multistage filtration, improving the application range, and forming a larger sediment deposition area compared with the straight passage, and further improving the filtering effect.
4. The invention provides a filter lamination, which further comprises a plurality of communication structures which are arranged on the lamination bodies and are used for communicating two adjacent lamination bodies which are arranged in a laminated mode.
The filter lamination of this structure through set up the communication structure on every lamination body, can be in the same place the passageway series connection of two adjacent lamination bodies of range upon range of arrangement, has increased the distribution trend of more runner and external water, has improved the anti-blocking performance of lamination body, has slowed down the jam time, has prolonged the filtration duration, has promoted the filtration efficiency of lamination body.
5. The invention provides a filter lamination, wherein a communication structure is a communication hole, the communication hole is arranged between two adjacent diversion pieces along a second direction, the communication hole is a circular communication hole, the diameter of the circular communication hole is a first size, and the first size is equal to the shortest distance between the two adjacent diversion pieces along the second direction.
The filter lamination of this structure can ensure to get into the lower lamination body through the connecting hole when the runner structure through on the upper lamination body blocks up to reduce the emergence of runner structure and block up.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic main body structure of a filter stack according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the partial structure of FIG. 1A according to the present invention;
FIG. 3 is a schematic view of a partial main structure of a filter stack according to embodiment 1 of the present invention;
FIG. 4 is a schematic view showing the mounting structure of a filter stack according to embodiment 1 of the present invention;
reference numerals illustrate:
1-lamination body;
2-flow guide
3-Flow channel structure, 31-first flow channel, 32-second flow channel;
4-communicating holes;
d-first spacing, D' -second spacing.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
This embodiment provides a filter stack, as shown in fig. 1 to 4, comprising a stack body 1, a number of flow guides 2 and a flow channel structure 3. The laminated body 1 is provided with a water inlet part and a water outlet part, the diversion pieces 2 are distributed on the laminated body 1 in an array mode along a first direction and a second direction, the first direction and the second direction are arranged at an included angle, a positive component is arranged along the direction from the water inlet part to the water outlet part and along the direction from the water inlet part to the water outlet part, the positive component indicates the flowing direction of outside water moving towards one side close to the water outlet part after passing through the diversion pieces 2 from the water inlet part, the diversion pieces 2 are arranged in a protruding mode along the surface of the laminated body 1, the two adjacent diversion pieces 2 are arranged at intervals along the first direction, the two adjacent diversion pieces 2 are arranged at intervals along the second direction, the shortest distance between the two adjacent diversion pieces 2 along the second direction is a first interval, the shortest distance between the two diversion pieces 2 adjacent along the first direction is a second interval, the first interval is larger than the second interval, the flow channel structure 3 comprises a plurality of first flow channels 31 and a plurality of second flow channels 32, the first flow channels 31 extend along the first direction and are arranged between the two diversion pieces 2 adjacent to the second direction, the second flow channels 31 extend along the second direction and are arranged between the second flow channels 31 and the second flow channels are arranged along the second direction, the second flow channels 31 and the outside water is arranged along the second direction, the second flow channels 31 is arranged between the adjacent flow channels and the second flow channels are arranged along the second direction, and the second flow channels are arranged along the second channels, and the second flow channels are adjacent along the second channels, and the second flow channels are outside and the outside, and the outside flow between the water is arranged, and between the water is outside between the diversion channels and the water is arranged.
According to the filtering lamination of the structure, external water flows out from the water outlet part after passing through the flow channel structure 3 by the water inlet part, in the process, impurities insoluble in water in the external water can pass through the first interval and the second interval, when the sectional area of the impurities is larger than or equal to the first interval or the second interval, the impurities can be separated at the position of the guide piece 2 by the first interval or the second interval, the shortest distance between two adjacent guide pieces 2 in the second direction is gradually reduced along the first direction, and the filtering of the impurities with different sections can be realized by the shortest distance between the two adjacent guide pieces 2 which are gradually reduced. The first flow channels 31 and the second flow channels 32 which are staggered in the flow channel structure 3 can provide more flow channel options for external water, so that the filtering efficiency is improved, and the filtering time is reduced.
As shown in fig. 1 to 4, in this embodiment, a plurality of flow guiding elements 2 are distributed on both sides of the lamination body 1 in an array manner, and in other embodiments, a plurality of flow guiding elements 2 are distributed on one side of the lamination body 1 in an array manner, specifically, the installation positions of the flow guiding elements 2 are not limited, and only need to be selected according to actual requirements. After the external water flows into two adjacent diversion elements 2 along the second direction through the first flow channel 31, the impurities with the minimum distance larger than or equal to the diversion elements 2 can be blocked to a sediment deposition area at a wider position between the two adjacent diversion elements 2, the filtered external water can flow into the next group of diversion elements 2 along the first direction, in other embodiments, when the position is blocked by more impurities, the external water can flow into the second flow channel through the diversion elements 2 and flow into the next group of diversion elements 2, and the specific circulation channel of the external water is not limited and can be selected according to actual needs.
In the present embodiment, as shown in fig. 1 to 4, the lamination body 1 is an annular lamination, the water inlet portion is formed on an outer ring of the annular lamination, and the water outlet portion is formed on an inner ring of the annular lamination, wherein a first direction forms an included angle with a radial direction of the annular lamination, and a second direction is a circumferential direction along concentric circles of the annular lamination body 1.
As shown in fig. 1 to 4, in the present embodiment, the first direction forms an angle of 12 degrees with the radial direction of the annular lamination, and in other embodiments, the first direction forms an angle of 20 degrees with the radial direction of the annular lamination. Specifically, the degree of the included angle between the first direction and the radial direction of the annular lamination is not limited, and only an included angle of 0-25 degrees is needed between the first direction and the radial direction of the annular lamination, and the included angle between the first direction and the radial direction of the annular lamination can block impurities in external water, so that the filtering effect is achieved.
As shown in fig. 1 to 4, in the present embodiment, the cross-sectional dimension of the flow guide member 2 is gradually reduced along the first direction, wherein the cross-sectional dimension reduction coefficient m is a ratio of the cross-sectional dimension of one flow guide member 2 to the cross-sectional dimension of the next adjacent flow guide member 2 along the first direction, and the value range of the cross-sectional dimension reduction coefficient m is 0.89< m <1.00. Nine rows of guide elements 2 are arranged in the direction from the water inlet part to the water outlet part, the scaling ratio of the second row of guide elements 2 relative to the first row of guide elements 2 is 0.98 along the first direction, the scaling ratio of the third row of guide elements 2 relative to the first row of guide elements 2 is 0.96, the scaling ratio of the fourth row of guide elements 2 relative to the first row of guide elements 2 is 0.94, the scaling ratio of the fifth row of guide elements 2 and the sixth row of guide elements 2 relative to the first row of guide elements 2 is 0.92, the scaling ratio of the seventh row of guide elements 2 relative to the first row of guide elements 2 is 0.90, the scaling ratio of the eighth row of guide elements 2 and the ninth row of guide elements 2 relative to the first row of guide elements 2 is 0.89, and in other embodiments, the scaling ratio of the rear row of guide elements 2 relative to the first row of guide elements 2 along the first direction can be other numbers, and in particular, only the scaling ratio of the rear row of guide elements 2 relative to the first row of guide elements 2 is required to be less than or equal to the scaling ratio of the front row of guide elements 2.
In the present embodiment, as shown in fig. 1 to 4, the reduced difference x is the difference between the first pitch and the second pitch, and the range of the reduced difference x is 0.02mm < x <0.20mm. In the second direction 153 baffles 2 are arranged per week. The shortest distance between two adjacent guide pieces 2 in the first row is 0.20mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.20mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the two adjacent guide pieces 2. The shortest distance between two adjacent guide pieces 2 in the second row is 0.18 mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.18 mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the two adjacent guide pieces 2. The shortest distance between the adjacent two flow guiding pieces 2 in the third row is 0.16 mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.16 mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the adjacent two flow guiding pieces 2. The shortest distance between the adjacent two flow guiding pieces 2 in the fourth row is 0.14 mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.14 mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the adjacent two flow guiding pieces 2. The shortest distance between two adjacent guide pieces 2 in the fifth row is 0.12 mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.12 mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the two adjacent guide pieces 2. The shortest distance between the sixth row of two adjacent guide pieces 2 is 0.09 mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.09 mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the two adjacent guide pieces 2. The shortest distance between the seventh row of two adjacent guide pieces 2 is 0.07 mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.07 mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the two adjacent guide pieces 2. The shortest distance between two adjacent guide pieces 2 in the eighth row is 0.05 mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.05 mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the two adjacent guide pieces 2. The shortest distance between every two adjacent guide pieces 2 in the ninth row is 0.02mm, and the row mainly intercepts impurities with particle sizes larger than or equal to 0.02mm or other particle sizes, and the filtered impurities are deposited in a sediment deposition area at the wider position of the two adjacent guide pieces 2. Along the second direction, the shortest distance between two adjacent flow guiding pieces 2 arranged in the front-back row gradually decreases, and through the arrangement, impurities can be blocked between the two adjacent flow guiding pieces 2 according to the section size, so that the outside water is filtered.
As shown in fig. 1 to 4, in the present embodiment, the flow guiding member 2 is an isosceles triangle boss, and rounded corners are provided at the end points of the isosceles triangle boss. The two sides of any isosceles triangle boss are respectively connected with the first flow channel 31, the bottom edge of any isosceles triangle boss is connected with the second flow channel 32, the height of the isosceles triangle boss is 0.23 millimeter, the isosceles triangle boss on the outermost ring is a regular triangle with the side length of 1 millimeter, the size of a rounding angle is 0.2 millimeter, the side length and the size of the rounding angle of the isosceles triangle boss are gradually reduced along the first direction, and the height of the isosceles triangle boss is unchanged. The top angle of the isosceles triangle boss is arranged near one side of the water inlet part, the bottom edge of the isosceles triangle boss is arranged near one side of the water outlet part, the bottom edge of the isosceles triangle boss is connected with the second flow channel 32, the contact surface of outside water and the diversion piece 2 is reduced to the side edge of the isosceles triangle by the arrangement mode, so that the contact between water flow and the diversion piece 2 is reduced, the loss of water head along the way is reduced, in other embodiments, the bottom edge of the isosceles triangle boss is arranged near one side of the water inlet part, the top angle of the isosceles triangle boss is arranged near one side of the water outlet part, the large particle impurities in the outside water are blocked by the arrangement mode, so that the occurrence of blockage of the lamination body 1 by the large particle impurities is avoided, and particularly, the placement position of the isosceles triangle boss is not limited and only needs to be selected according to the actual use environment.
As shown in fig. 4, in the present embodiment, the lamination body 1 is provided with a plurality of groups, and the plurality of groups of lamination bodies 1 are arranged in a stacked manner in a direction perpendicular to the lamination body 1. The multiple groups of flow channels can be formed by arranging the multiple groups of laminated bodies 1, so that the circulation and filtering speed of external water are increased, the laminated bodies 1 are arranged in multiple, the laminated bodies 1 are arranged in a lamination mode along the third direction, namely the axial direction of the laminated bodies 1, and the number of the laminated bodies 1 can be specifically selected according to actual use requirements.
As shown in fig. 1 to 4, in the present embodiment, the present invention further includes a plurality of communication structures provided on the laminated body 1, the communication structures being used to communicate adjacent two laminated bodies 1 arranged in a stacked manner, thereby increasing a flow path between the laminated bodies 1 of the upper and lower layers, when the present laminated body 1 becomes smaller in filtration amount due to the flow path being blocked, external water can flow into the adjacent laminated bodies 1 of the upper and lower layers through the communication structures, thereby achieving an effect of increasing communication between the adjacent laminated bodies 1, thereby improving filtration efficiency.
As shown in fig. 1 to 4, in the present embodiment, the communication structure is a communication hole 4, the communication hole 4 is provided between two flow guides 2 adjacent in the second direction, the communication hole 4 is a circular through hole, the diameter of the circular communication hole 4 is a first size, and the first size is equal to the shortest distance between two flow guides 2 adjacent in the second direction. The number of the circular through holes is 18, the 18 circular through holes are distributed on the lamination body 1 in an array mode along the first direction and the second direction, in other embodiments, the number of the circular through holes is 16, in addition, in other embodiments, the number of the circular through holes is 20, specifically, the number of the circular through holes is not limited, and the circular through holes can be selected according to the actual use environment requirements only.
Example 2
This embodiment provides a filter comprising the filter stack of embodiment 1.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.