Large-flow bag type filter element

Abstract

A large-flow bag type filter element is characterized by comprising a lower shell, an upper shell, an outlet connecting seat, a filter element connecting disc and a plurality of inner filter elements, a liquid inlet is formed in the bottom of the lower shell, a liquid outlet is formed in the top of the upper shell, the outlet connecting seat is arranged at the top of an upper containing cavity and forms a channel communicated with the liquid outlet, the filter element connecting disc is connected with the outlet connecting seat, and the inner filter elements are arranged in the outlet connecting seat. A plurality of through holes communicated with the channel are formed in the filter element connecting disc, and the inner filter element is fixedly arranged below the filter element connecting disc and is correspondingly communicated with the through holes. The filter has the advantages of being simple in structure, reasonable in layout and capable of meeting the large-flow filtering requirement and prolonging the service life of products.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a large-flow capsule filter element. Background Art

[0002] The filter is used to remove suspended solids and particulate matter in the water to reduce turbidity and purify water quality, and also reduce the generation of dirt, algae and rust, etc., to ensure the effect of purifying water quality and protect the normal operation of other equipment in the system. The core component of the filter is the filter element. The existing filter elements all adopt a single-core structure, which has relatively low flow rate, short service life and requires frequent replacement.

[0003] In order to solve the above problems, a Chinese utility model patent (CN 220257313 U) discloses a large flow filter element, which is separated into an inner channel and an outer channel by a partition inside the base, the inner channel is connected to the liquid outlet, and the outer channel is connected to the liquid inlet and the liquid discharge port. A connecting disc with an interface is installed above the partition, and a plurality of inner filter elements are installed on the connecting disc. The inner filter element, the interface and the inner channel are connected, and the multiple inner filter elements filter together. The filtered water is gathered in the inner channel, so that the filter element has a large filtration flow, a long service life of the filter element, and a reduced replacement frequency. At the same time, the opening and closing of the liquid inlet and outlet are realized by using a spring and a plug, which not only facilitates the docking connection of the filter element with the pipeline when in use, but also the caliber of the liquid inlet and outlet can be set to be larger to meet the requirements of large flow.

[0004] Normally, the trapped pollutants will sink naturally, but in the above-mentioned large-flow filter element, its liquid outlet, liquid inlet and liquid discharge port are all located at the bottom of the base, and the inner and outer channels of the base are separated from the connecting disc by a partition, and the inner filter element is installed on the upper end of the connecting disc. This causes a large amount of pollutants to remain and accumulate on the connecting disc. As the pollutants increase, the pollutants will be blocked at the outer periphery of the lower end of the inner filter element and prevent the fluid from passing through the inner filter element normally, causing the lower half of the inner filter element to fail, which will not only seriously affect the filtering flow of the filter element, but also shorten the normal service life of the filter element.

[0005] In addition, in the above-mentioned large-flow filter element, the inner filter element, the connecting faceplate, and the partition all need to be reliably fixed and sealed by hot-melt welding; at the same time, the liquid inlet and the liquid outlet are respectively installed with plugs, and a spring is installed between the plug and the connecting faceplate. During production and processing, if the inner filter element and the connecting faceplate are welded first, and then the connecting faceplate and the partition are welded, the welding effect between the connecting faceplate and the partition cannot be fully observed due to the dense arrangement of multiple inner filter elements on the connecting faceplate; similarly, if the connecting faceplate and the partition are welded first, and then the inner filter element and the connecting faceplate are welded, due to the dense arrangement of multiple inner filter elements, the welding effect between the inner filter element and the connecting faceplate cannot be fully observed during the quality inspection process, especially the inner filter element set in the center, whose welding surface is basically invisible, which greatly increases the difficulty of the manufacturer's quality inspection and control of the hot-melt welding of the product, and cannot ensure the production quality of the product. Utility Model Content

[0006] In order to overcome the shortcomings of the background technology, the utility model provides a large-flow capsule filter element.

[0007] The technical solution adopted by the utility model is: a large flow capsule filter element, comprising:

[0008] A lower shell body having a lower cavity with an upper opening, and a liquid inlet is provided at the bottom of the lower cavity;

[0009] An upper shell body, which has an upper cavity with an opening at the lower end, a liquid outlet is arranged at the top of the upper cavity, the upper cavity body is sealedly connected to the lower cavity body, and the upper cavity and the lower cavity together constitute a filter cavity;

[0010] An outlet connection seat is arranged at the top of the upper chamber, and the outlet connection seat is formed with a channel connected to the liquid outlet;

[0011] A filter element connection plate, the upper end surface of which is connected to the outlet connection seat, and the filter element connection plate is formed with a plurality of through holes connected to the channel;

[0012] A plurality of inner filter elements are fixedly mounted on the lower end surface of the filter element connecting plate and are correspondingly communicated with the through holes.

[0013] A connecting plate is provided at the lower end of the outlet connecting seat, and a surrounding boss connected to the filter element connecting disk is formed at the bottom of the connecting plate, the surrounding boss surrounds all through holes on the filter element connecting disk, and a gap is provided between the connecting plate and the filter element connecting disk; a first mounting groove corresponding to the liquid outlet is formed at the upper end of the outlet connecting seat, and a plurality of outlet flow grooves connected up and down are formed on the side wall of the first mounting groove, and the gap and the outlet flow grooves together constitute the channel; an outlet plug and an outlet spring are also provided in the first mounting groove, the outlet plug can slide up and down along the first mounting groove, and the outlet spring abuts against the outlet plug and drives the outlet plug to block the liquid outlet.

[0014] The surrounding boss of the outlet connection seat is hot-melt welded to the filter element connection plate.

[0015] The upper shell is formed with an outlet socket matched with the outlet connection seat, and the outlet connection seat is plugged into the outlet socket; and at least one sealing ring is arranged between the outlet connection seat and the outlet socket.

[0016] The number of through holes on the filter element connecting disk is 7, one of which is located at the center of the filter element connecting disk, and the remaining 6 through holes are evenly arranged along the center circumference of the filter element connecting disk; the number of the inner filter elements is 7, and the 7 inner filter elements are arranged in a one-to-one correspondence with the 7 through holes.

[0017] The inner filter element and the filter element connecting plate are hot-melt welded.

[0018] It also includes an inlet connecting seat, which is fixedly arranged at the bottom of the lower cavity, and a second mounting groove corresponding to the liquid inlet is formed at the lower end of the inlet connecting seat, and a plurality of inlet flow grooves connected up and down are formed on the side wall of the second mounting groove; an inlet plug and an inlet spring are also arranged in the second mounting groove, and the inlet plug can slide up and down along the second mounting groove, and the inlet spring is against the inlet plug, and drives the inlet plug to block the liquid inlet.

[0019] An inlet socket matched with the inlet connection seat is formed at the bottom of the lower cavity. The inlet connection seat is plugged with the outlet socket, and the inlet connection seat and the outlet socket are hot-melt welded.

[0020] The lower shell is also provided with a liquid discharge port, and a liquid discharge valve is arranged at the liquid discharge port. The upper shell is also provided with an exhaust port, and an exhaust valve is arranged at the exhaust port.

[0021] The lower shell has the same structure as the upper shell.

[0022] The beneficial effects of the utility model are as follows: 1. It adopts a bottom-in-top-out circulation mode, and combines the outlet connection seat, the filter element connection plate, and the inner filter element into an integral structure and is installed on the top of the upper volume chamber of the upper shell body. The pollutants that naturally sink in the fluid material will accumulate in the lower volume chamber of the lower shell body, ensuring that the inner filter element will not be blocked by the accumulation of residual pollutants, thereby improving the service life of the inner filter element; 2. The inlet and outlet ports are automatically blocked by the structure of the plug and the spring, which is not only convenient for the docking and disassembly of the inlet and outlet pipes, but also easier to increase the caliber of the inlet and outlet ports to meet the requirements of large flow circulation; 3. Multiple inner filter elements are set to achieve common filtration to meet the requirements of large flow filtration; 4. The outlet connection seat, the filter element connection plate, and the inner filter element have a reasonable structural layout, convenient production and assembly, and easy to observe and inspect, which is beneficial to the manufacturer's control of product quality; 5. The upper and lower shells with the same structure are adopted to improve the versatility of parts, reduce the design and development of molds, and thus reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a large flow capsule filter element according to an embodiment of the utility model.

[0024] Figure 2 for Figure 1 The cross-sectional structure diagram of the large flow capsule filter element in the AA direction is shown.

[0025] Figure 3 It is a schematic structural diagram of the upper shell and the outlet connecting seat of an embodiment of the utility model.

[0026] Figure 4 It is a schematic structural diagram of the upper shell of an embodiment of the utility model.

[0027] Figure 5-6 It is a schematic structural diagram of the outlet connection seat of an embodiment of the utility model.

[0028] Figure 7 It is a schematic structural diagram of the filter element connecting disk of an embodiment of the utility model.

[0029] Figure 8 It is a schematic structural diagram of the lower shell and the inlet connecting seat of the embodiment of the utility model.

[0030] Fig. 9 It is a schematic structural diagram of the lower shell of an embodiment of the utility model.

[0031] Fig.10 It is a schematic structural diagram of the inlet connection seat of an embodiment of the utility model. DETAILED DESCRIPTION

[0032] The embodiments of the utility model are further described below in conjunction with the accompanying drawings.

[0033] As shown in the figure, a large flow capsule filter element includes a lower shell 1, an upper shell 2, an outlet connection seat 3, a filter element connection plate 4, a plurality of inner filter elements 5, an inlet connection seat 6, a drain valve 7, and an exhaust valve 8.

[0034] The lower shell 1 has a lower cavity 11 with an upper opening, a liquid inlet 12 is provided at the bottom center of the lower cavity 11, an inlet socket 13 surrounding the liquid inlet 12 is integrally formed at the bottom center of the lower cavity 11, and a liquid discharge port 14 is formed at the bottom of the lower cavity 11 near the edge.

[0035] The upper shell 2 has an upper cavity 21 with an opening at the lower end. A liquid outlet 22 is provided at the top center of the upper cavity 21. An outlet socket 23 surrounding the liquid outlet 22 is also integrally formed at the top center of the upper cavity 21. An exhaust port 24 is also formed at the top of the upper cavity 21 near the edge.

[0036] The upper shell 2 is sealed and connected to the lower shell 1. Specifically, the upper shell 2 and the lower shell 1 can be connected into an integral capsule shell by hot-melt welding, and the upper cavity 21 and the lower cavity 11 together constitute a filter cavity. The lower shell 1 and the upper shell 2 have the same structure, thereby improving the versatility of parts, reducing the design and development of molds, and further reducing production costs.

[0037] The outlet connection seat 3 is adapted to the outlet socket 23, and the outlet connection seat 3 and the outlet socket 23 are plugged and matched; and two sealing rings 38 are provided between the outlet connection seat 3 and the outlet socket 23, and the sealing rings 38 can ensure a tight and reliable connection between the outlet connection seat 3 and the outlet socket 23, and can also ensure a reliable seal between the two. Of course, the sealing rings can also be provided with 1, 3 or other numbers, and the sealing rings can be ordinary O-type sealing rings or lip-type sealing rings.

[0038] A connecting plate 31 is provided at the lower end of the outlet connecting seat 3, and a circle of surrounding bosses 32 is formed at the bottom edge of the connecting plate 31. A first mounting groove 33 corresponding to the liquid outlet 22 is formed at the upper end of the outlet connecting seat 3. The side wall of the first mounting groove 33 is formed with a plurality of outlet flow grooves 34 that are connected up and down. An outlet plug 36 and an outlet spring 37 are also provided in the first mounting groove 33. The outlet plug 36 can slide up and down along the first mounting groove 33, and the outlet spring 37 is abutted against the outlet plug 36 to provide an upward elastic force for the outlet plug 36, which can drive the outlet plug 36 to block the liquid outlet 22.

[0039] The upper end surface of the filter element connection plate 4 is fixedly connected to the surrounding boss 32 of the outlet connection seat 3, and a gap 35 is formed between the filter element connection plate 4 and the connection plate 31 of the outlet connection seat 3. The gap 35 and the outlet flow groove 34 together constitute a channel connected to the liquid outlet 22. The filter element connection plate 4 can be directly integrally formed with the outlet connection seat 3, or the surrounding boss 32 of the outlet connection seat 3 can be hot-melt welded or other sealed connection methods with the filter element connection plate 4. Of course, the hot-melt welding connection method is preferably used here.

[0040] The filter element connection disk 4 is formed with 7 through holes 41 connected to the channel. The layout of the 7 through holes 41 is that one of the through holes is located at the center of the filter element connection disk, and the remaining 6 through holes are evenly arranged along the center circumference of the filter element connection disk. Such a layout structure is compact and reasonable. The number of the inner filter elements 5 is also 7, and the 7 inner filter elements 5 are arranged in a one-to-one correspondence with the 7 through holes 41. Of course, the number of through holes and inner filter elements is not limited to 7, and can also be 5, 9 or other numbers. The specific layout can also be adjusted accordingly according to the actual number settings to ensure that the overall layout is compact and reasonable.

[0041] In addition, the inner filter element 5 and the filter element connecting plate 4 are also sealed and connected by hot-melt welding.

[0042] The production and assembly steps of the above-mentioned outlet connection seat 3, filter element connection plate 4, and inner filter element 5 are as follows: first, the inner filter element 5 is hot-melt welded to the filter element connection plate 4. Usually, the filter element connection plate 4 is made of transparent plastic material, which can form a certain degree of transparency. Therefore, after the welding is completed, the overall welding quality between the inner filter element 5 and the filter element connection plate 4 can be directly observed through the filter element connection plate 4. After the welding inspection is qualified, the filter element connection plate 4 is hot-melt welded to the outlet connection seat 3. After the welding is completed, the overall welding quality of the filter element connection plate 4 and the outlet connection seat 3 can be directly observed. After the welding inspection is qualified, the sealing ring is finally put on the outlet connection seat 3 and inserted into the outlet socket 23 of the upper shell 2 for complete assembly. Therefore, the above scheme is adopted, not only the assembly and processing operation is convenient, but also the welding quality inspection of each welding process is convenient, which is beneficial for the manufacturer to inspect and control the quality of the hot-melt welding of the product, thereby ensuring the production quality of the product.

[0043] The inlet connection seat 6 is adapted to the inlet socket 13 , and the inlet connection seat 6 and the inlet socket 13 are plug-fitted and matched, and are fixed and sealed by hot-melt welding.

[0044] A second mounting groove 61 corresponding to the liquid inlet 12 is formed at the lower end of the inlet connecting seat 6, and a plurality of inlet flow grooves 62 communicating up and down are formed on the side wall of the second mounting groove 61; an inlet plug 63 and an inlet spring 64 are also provided in the second mounting groove 61, and the inlet plug 63 can slide up and down along the second mounting groove 61, and the inlet spring 64 resists against the inlet plug 63, providing a downward elastic force for the inlet plug 63, which can drive the inlet plug 63 to block the liquid inlet 12.

[0045] The drain valve 7 is installed at the drain port 14 of the lower shell 1 to control the opening or closing of the drain port 14 to facilitate the recovery of materials inside the capsule shell. The exhaust valve 8 is installed at the exhaust port 24 of the upper shell 2 to facilitate the exhaust of gas inside the capsule shell. The drain valve 7 and the exhaust valve 8 directly use existing conventional technology, which will not be described in detail here.

[0046] The working process of the above-mentioned high-flow capsule filter is as follows:

[0047] During installation, the liquid inlet pipe joint and the liquid outlet pipe joint are respectively connected to the liquid inlet 12 and the liquid outlet 22. The liquid inlet pipe joint can push open the inlet plug 63, so that the fluid material can enter the filter chamber through the bottom liquid inlet 12. The liquid outlet pipe joint can push open the outlet plug 36, and the filtered fluid material in the filter chamber can flow out of the filter chamber through the top liquid outlet 22.

[0048] During disassembly, the liquid inlet pipe joint and the liquid outlet pipe joint are separated from the liquid inlet 12 and the liquid outlet 22 respectively, the inlet plug 63 is reset and blocks the liquid inlet 12 under the action of the inlet spring 64, and the outlet plug 36 is reset and blocks the liquid outlet 22 under the action of the outlet spring 37. Finally, after taking out the above-mentioned large-flow capsule filter element, open the drain valve 7 to recover the material.

[0049] During filtration, after the fluid material enters the filter cavity from the liquid inlet 12, the fluid material will pass through the filter membrane of the inner filter element 5, flow from the outer side of the inner filter element 5 to the inner side of the inner filter element 5, then enter the channel through the through hole 61, and finally flow out from the liquid outlet 22 along the channel.

[0050] The beneficial effects of using the above large flow capsule filter are:

[0051] 1. The bottom-in and top-out circulation method is adopted, and the outlet connection seat, filter element connection plate, and inner filter element are combined into an integral structure and installed on the top of the upper cavity of the upper shell. The pollutants that naturally sink in the fluid material will accumulate in the lower cavity of the lower shell, ensuring that the inner filter element will not be blocked due to the accumulation of residual pollutants, thereby increasing the service life of the inner filter element;

[0052] 2. The inlet and outlet are automatically blocked by the plug and spring structure, which is not only convenient for the connection and disassembly of the inlet and outlet pipes, but also easier to increase the diameter of the inlet and outlet to meet the requirements of large flow circulation;

[0053] 3. Set up multiple inner filter elements to achieve common filtration and meet the requirements of large flow filtration;

[0054] 4. The structure layout of the outlet connection seat, filter element connection plate and inner filter element is reasonable, which is convenient for production and assembly, and easy to observe and inspect, which is conducive to the manufacturer's control of product quality;

[0055] 5. The upper and lower shells with the same structure are used to improve the versatility of parts, reduce the design and development of molds, and thus reduce costs.

[0056] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0058] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept of the utility model is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent right.

Claims

1. A large flow capsule filter element, characterized in that: include: A lower housing (1) having a lower chamber (11) with an open upper end, wherein a liquid inlet (12) is provided at the bottom of the lower chamber (11); An upper shell (2) having an upper cavity (21) with an opening at the lower end, a liquid outlet (22) being provided at the top of the upper cavity (21), the upper shell (2) being sealedly connected to the lower shell (1), and the upper cavity (21) and the lower cavity (11) together forming a filter cavity; An outlet connection seat (3) is arranged at the top of the upper chamber (21), and the outlet connection seat (3) is formed with a channel connected to the liquid outlet (22); A filter element connection plate (4), the upper end surface of which is connected to the outlet connection seat (3), and the filter element connection plate (4) is formed with a plurality of through holes (41) connected to the channel; A plurality of inner filter elements (5) are fixedly mounted on the lower end surface of the filter element connecting plate (4) and are correspondingly connected to the through holes (41).

2. The large flow capsule filter according to claim 1, characterized in that: A connecting plate (31) is provided at the lower end of the outlet connecting seat (3); a surrounding boss (32) connected to the filter element connecting plate (4) is formed at the bottom of the connecting plate (31); the surrounding boss (32) surrounds all through holes (41) on the filter element connecting plate (4), and a gap (35) is provided between the connecting plate (31) and the filter element connecting plate (4); The upper end of the outlet connection seat (3) is formed with a first installation groove (33) corresponding to the liquid outlet (22), and the side wall of the first installation groove (33) is formed with a plurality of outlet flow grooves (34) communicating with each other in an upper and lower direction, and the gap (35) and the outlet flow grooves (34) together constitute the channel; An outlet plug (36) and an outlet spring (37) are also provided in the first installation groove (33); the outlet plug (36) can slide up and down along the first installation groove (33), and the outlet spring (37) abuts against the outlet plug (36) to drive the outlet plug (36) to block the liquid outlet (22).

3. The large flow capsule filter according to claim 2, characterized in that: The surrounding boss (32) of the outlet connection seat (3) is hot-melt welded to the filter element connection plate (4).

4. The large flow capsule filter according to claim 2, characterized in that: The upper shell (2) is formed with an outlet socket (23) adapted to the outlet connection seat (3); the outlet connection seat (3) is plugged into the outlet socket (23); and at least one sealing ring (38) is provided between the outlet connection seat (3) and the outlet socket (23).

5. The large flow capsule filter according to claim 1, characterized in that: The number of through holes (41) on the filter element connection disk (4) is 7, one of which is located at the center of the filter element connection disk, and the remaining 6 through holes are evenly arranged along the center circumference of the filter element connection disk; The number of the inner filter elements (5) is 7, and the 7 inner filter elements (5) are arranged in a one-to-one correspondence with the 7 through holes (41).

6. The large flow capsule filter according to claim 1, characterized in that: The inner filter element (5) is hot-melt welded to the filter element connecting plate (4).

7. The large flow capsule filter according to claim 1, characterized in that: It also includes an inlet connection seat (6), the inlet connection seat (6) being fixedly arranged at the bottom of the lower chamber (11), the lower end of the inlet connection seat (6) being formed with a second installation groove (61) corresponding to the liquid inlet (12), and the side wall of the second installation groove (61) being formed with a plurality of inlet flow grooves (62) communicating with each other from top to bottom; An inlet plug (63) and an inlet spring (64) are also provided in the second installation groove (61); the inlet plug (63) can slide up and down along the second installation groove (61), and the inlet spring (64) abuts against the inlet plug (63) to drive the inlet plug (63) to block the liquid inlet (12).

8. The large flow capsule filter according to claim 7, characterized in that: An inlet socket (13) adapted to the inlet connection seat (6) is formed at the bottom of the lower cavity (11); the inlet connection seat (6) is plugged into the outlet socket (23), and the inlet connection seat (6) and the outlet socket (23) are hot-melt welded.

9. The large flow capsule filter according to claim 1, characterized in that: The lower shell (1) is also provided with a liquid discharge port (14), and a liquid discharge valve (7) is provided at the liquid discharge port (14); the upper shell (2) is also provided with an exhaust port (24), and an exhaust valve (8) is provided at the exhaust port (24).

10. The large flow capsule filter according to claim 1, characterized in that: The lower shell (1) and the upper shell (2) have the same structure.

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