Double-opening filter element supporting structure

Abstract

The utility model provides a double-opening filter element supporting structure. The double-opening filter element supporting structure comprises a faceplate, a lower seat ring, a punched pipe, a double-opening filter element, an annular plate, a nut seat ring, a bolt and a nut, wherein the lower seat ring is connected in an opening of the faceplate; one end of the punched pipe is connected in the lower seat ring; the nut seat ring is pressed at the open end of the double-opening filter element, the bolt penetrates through the nut seat ring and extends into the double-opening filter element to be connected with the annular plate, and the nut is connected to the bolt in a threaded mode so that the nut seat ring, the double-opening filter element and the lower seat ring can be tightly attached. The double-opening filter element supporting structure provided by the utility model not only can be used in an upright mounting manner, but also can be used in an inverted mounting manner, and the faceplate, the lower seat ring, the punching pipe and the double-opening filter element are fixed together to form an integrated structure, so that the sealing performance of the two ends of the double-opening filter element is ensured, and the double-opening filter element is prevented from skewing and leaking due to the flow impact of a medium; and an original integral pressing plate structure is omitted.

Description

Technical Field

[0001] This utility model relates to the field of filter element technology, and in particular to a double-opening filter element support structure. Background Technology

[0002] Dual-opening filter cartridges are widely used in the filtration and separation industry (involving chemical, pharmaceutical, semiconductor, and many other industries). During the operation of filtration equipment, the fluid medium flows in from the inlet, passes through the filter cartridge, and the cartridge traps impurities on its outer side, while the clean medium flows out from the inside of the cartridge and out of the equipment through the outlet. However, due to structural defects in the equipment or the impact of the fluid medium on the filter cartridge, filtration can fail. In this case, the fluid medium enters the equipment through the inlet but flows directly to the outlet without passing through the filter cartridge.

[0003] Currently, common dual-opening filter element support structures include Figure 1 As shown, the device includes a plate-shaped disc 11 with multiple mounting holes for installing filter elements 14. A lower seat ring 12 is connected to the mounting holes of the disc 11. Fins 13 serve as a support structure for supporting the filter elements 14. The fins 13 are inserted into the lower seat ring 12 via a special snap-fit ​​structure. A spring assembly 15 is then installed above the filter elements 14. The device can install multiple filter elements 14. After all filter elements 14 in one unit are installed, a pressure plate (not shown) is installed, pressing against the spring assemblies 15 of all filter elements 14. Multiple nuts (not shown) are welded onto the disc 11. Multiple screws (not shown) are screwed one end into the nuts of the disc 11, and the other end passes through the pressure plate and is pressed down by the nuts. In this way, all filter elements 14 are clamped between the disc 11 and the pressure plate.

[0004] This type of support structure has the following disadvantages:

[0005] 1. During equipment operation, the flow of the medium will impact the double-opening filter element, causing the filter element to tilt. After tilting, the contact surface between the filter element and the lower seat ring will deform. The medium in the equipment will flow directly to the outlet through the gap between the deformed filter element, the lower seat ring, and the compression spring assembly, thus causing filtration failure.

[0006] 2. The equipment uses a single pressure plate to compress all filter elements through a spring assembly. Due to the limited number of screws, some filter elements that are far from the screws may not be compressed, leading to filtration failure.

[0007] 3. This structure can only be used in a formal setting.

[0008] In view of this, it is necessary to improve the existing dual-opening filter element support structure to solve the above-mentioned technical problems. Utility Model Content

[0009] The purpose of this utility model is to disclose a double-opening filter element support structure that can be used both upright and upside down. Since the disc, lower seat ring, perforated tube, and double-opening filter element are fixed together to form an integrated structure, the sealing of both ends of the double-opening filter element is guaranteed. The double-opening filter element will not be tilted or leak due to the impact of media flow. Each double-opening filter element is supported by a separate perforated tube, which eliminates the original overall pressure plate structure, so that each double-opening filter element can be effectively supported, preventing the previous problem of some double-opening filter elements not being compressed and thus leaking.

[0010] To achieve the above objectives, this utility model provides a double-opening filter element support structure, including a disc, a lower seat ring connected in the opening of the disc, a perforated tube with one end connected in the lower seat ring, a double-opening filter element fitted on the perforated tube, an annular plate connected to the other end of the perforated tube, a nut seat ring, a bolt, and a nut; the nut seat ring presses against the open end of the double-opening filter element, the bolt passes through the nut seat ring and extends into the double-opening filter element and connects with the annular plate, and the nut is screwed onto the bolt to ensure that the nut seat ring, the double-opening filter element, and the lower seat ring fit tightly together.

[0011] In some embodiments, the lower seat ring is connected to the disc by welding or a threaded interface.

[0012] In some embodiments, the perforated tube is welded into the lower seat ring.

[0013] In some embodiments, the bolt is a press-fit bolt or a pull-fit bolt.

[0014] In some embodiments, the ring plate is welded to the perforated tube, the ring plate has openings, and the bolts are riveted to the ring plate.

[0015] In some embodiments, the nut is a hexagonal flange nut, a standard nut, or a wing nut.

[0016] In some embodiments, a rubber washer is provided between the nut and the nut seat.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The double-opening filter element support structure provided by this utility model can be used both upright and upside down. Since the flower plate, lower seat ring, perforated tube and double-opening filter element are fixed together to form an integrated structure, the sealing of both ends of the double-opening filter element is guaranteed. The double-opening filter element will not be tilted and leak due to the impact of the medium flow. Each double-opening filter element is supported by a separate perforated tube, which eliminates the original overall pressure plate structure, so that each double-opening filter element can be effectively supported, preventing the previous problem of some double-opening filter elements not being compressed and thus leaking. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a dual-opening filter element support structure in the prior art.

[0019] Figure 2 This is a schematic diagram of the double-opening filter element support structure shown in this utility model installed in the equipment.

[0020] Figure 3 This is a schematic diagram of the double-opening filter element support structure shown in this utility model;

[0021] Figure 4 for Figure 3 The diagram shows the structure of the perforated tube.

[0022] Figure 5 for Figure 3 The diagram shows a partial structural representation. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0024] like Figure 2-5 The dual-opening filter element support structure shown includes a device 91, a device inlet 92, a device outlet 93, and a perforated disc 9. The perforated disc 9 is fixed to the device 91 by welding, which not only serves to fix the device but also separates the device inlet 92 and the device outlet 93, restricting the fluid passing through the device 91 to flow only through the openings of the perforated disc 9.

[0025] It also includes a lower seat ring 2 connected to the opening in the flower plate 9, a perforated tube 3 connected to the lower seat ring 2 at one end, a double-opening filter element 4 fitted on the perforated tube 3, a ring plate 5 connected to the other end of the perforated tube 3, a nut seat ring 7, a bolt 6 and a nut 8.

[0026] The perforated tube 3 is a tube with holes, or a spiral screen tube can be used. The bolt 6 is a press-fit bolt or a pull-fit bolt, preferably a press-fit bolt. The nut 8 is a hexagonal flange nut, a regular nut, or a wing nut, preferably a hexagonal flange nut.

[0027] The lower seat ring 2 is welded to the flower plate 9, which not only fixes the position of the lower seat ring 2, but also further restricts the flow path of the fluid medium in the device 91, so that the fluid can only flow out through the central hole of the lower seat ring 2.

[0028] The perforated tube 3 passes through the lower seat ring 2, and its bottom end is welded to the lower seat ring 2. The perforated tube 3 serves two purposes: firstly, it forms a flow channel, as it has many openings that allow the fluid medium to pass through freely without obstruction; secondly, it fixes and supports the double-opening filter element 4. The perforated tube 3 is welded to the lower seat ring 2, and the gap between the perforated tube 3 and the double-opening filter element 4 is very small. When the double-opening filter element 4 is fitted over the perforated tube 3, the perforated tube 3 can support the double-opening filter element 4 and prevent it from tilting.

[0029] The ring plate 5 is welded to the top of the perforated tube 3. The ring plate 5 has an opening in its center for mounting bolts 6. The bolts 6 are riveted to the ring plate 5 to form a stable structure.

[0030] The nut seat 7 is pressed against the open end of the double-opening filter element 4. The bolt 6 passes through the nut seat 7 and extends into the double-opening filter element 4 to connect with the ring plate 5. The nut 8 is screwed onto the bolt 6 and tightened to make the nut seat 7, the double-opening filter element 4, and the lower seat 2 fit tightly together to form an integral structure. At this time, the lower end face of the double-opening filter element 4 contacts the upper edge of the lower seat 2, and the lower edge of the nut seat 7 contacts the upper end face of the double-opening filter element 4. The two sealing interfaces are pressed together at the same time to ensure the sealing of both ends of the double-opening filter element 4.

[0031] Since the flower plate 9, lower seat ring 2, perforated tube 3, and double-opening filter element 4 are fixed together, the double-opening filter element 4 will not be tilted or leak due to the impact of the medium flow. Each double-opening filter element 4 is supported by a separate perforated tube 3, which eliminates the original overall pressure plate structure, so that each double-opening filter element 4 can be effectively supported, preventing the previous problem of some double-opening filter elements 4 not being able to be compressed and thus leaking.

[0032] A rubber washer is provided between the nut 8 and the nut seat 7 to increase the sealing performance. The material of the rubber washer is selected according to the compatibility of the fluid medium.

[0033] After installation, the fluid medium in the device 91 enters through the device inlet 92 and can only pass through the double-opening filter element 4. Impurities are intercepted on the outside of the double-opening filter element 4, and clean liquid flows out from the device outlet 93 through the perforated pipe 3 and the lower seat ring 2.

[0034] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual open filter cartridge support structure characterized by, The application relates to a filter device, which comprises a flower disc, a lower seat ring connected in the opening of the flower disc, a punching pipe connected in one end of the lower seat ring, a double-opening filter core sleeved on the punching pipe, a ring plate connected in the other end of the punching pipe, a nut seat ring, a bolt and a nut; the punching pipe is welded in the lower seat ring; The nut seat ring is pressed in the open end of the double-opening filter core, the bolt passes through the nut seat ring and extends into the double-opening filter core and is connected with the ring plate, the nut is screwed on the bolt so that the nut seat ring, the double-opening filter core and the lower seat ring are tightly combined, the lower end surface of the double-opening filter core is in contact with the upper edge of the lower seat ring, the lower edge of the nut seat ring is in contact with the upper end surface of the double-opening filter core, and the two sealing interfaces are simultaneously pressed, so that the sealing property of the two ends of the double-opening filter core is ensured.

2. The dual-openings filter cartridge support structure of claim 1, wherein, The lower seat ring is connected with the flower disc through welding or a threaded interface.

3. The dual-openings filter cartridge support structure of claim 1, wherein, The bolt is a press rivet bolt or a pull rivet bolt.

4. The dual-openings filter cartridge support structure of claim 3, wherein, The ring plate is welded on the punching pipe, the ring plate is provided with an opening, and the bolt is riveted on the ring plate.

5. The dual-openings filter cartridge support structure of claim 3, wherein, The nut is a hexagonal flange nut, a common nut or a butterfly nut.

6. The dual-openings filter cartridge support structure of claim 5, wherein, Rubber gaskets are arranged between the nut and the nut seat ring.

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