Filtering water cap with controllable backwashing flow for ion exchanger and preparation of the separator plate thereof

Abstract

The utility model provides a filter water cap with controllable backwashing flow for ion exchanger and a preparation diaphragm, belongs to water treatment equipment technical field, including filter cap diaphragm, the board surface of filter cap diaphragm has filter hole, inserts and wears filter cap in filter hole, and filter cap includes the screw rod setting at bottom, and screw rod passes through filter hole, then screw rod is fixed with nut cooperation filter cap on filter cap diaphragm, and nut includes the fixed part of setting in the outside of screw rod, and the passage of the all surrounding of tail end of screw rod, and the end of passage has flow control chamber, and flow control chamber is used for limiting the flow of liquid by screw rod into nut then exports on the other side of filter cap diaphragm. In view of the problem that the existing filter cap cannot adjust flow, a filter water cap with controllable backwashing flow for ion exchanger is provided, which can adjust flow.

Description

Technical Field

[0001] This application belongs to the field of water treatment equipment technology, and specifically relates to a filter cap for ion exchangers with controllable backwash flow and the baffle plate made therefrom. Background Technology

[0002] Currently, in environmental water treatment equipment and industrial condensate recycling deep treatment equipment, the existing water collection devices usually adopt several forms such as baffle pads, branch pipes, ordinary perforated plates, and multi-stage packing layers. These water collection devices can be well applied in equipment with small flow rates and low flow velocities ≤60m / h, but these devices do not need to completely and thoroughly remove the filter media from the body. For equipment with high flow rates, high velocities, and large diameters, these water collection devices are unsuitable. Water collection devices with branch pipes have a certain distance between the branch pipes and a certain length between them, inevitably resulting in a larger inflow near the branch pipes and a smaller flow rate in the middle, leading to ineffective water collection. This is especially true for containers with high operating velocities, where uniform water collection is difficult, and even more challenging for equipment requiring complete removal of filter media. Multi-stage packing layer structures, with multiple layers of different packing particle sizes arranged in layers (larger particles at the bottom, smaller particles at the top), can cause some filter media to be carried through by high-velocity fluids, flowing out through the larger particles. Furthermore, high-flow-rate backwashing or air scrubbing can disrupt the layering of the packing, affecting the normal water collection process. This type of water collection device is not suitable for equipment that requires the complete removal of filter media from the body. A typical perforated plate water cap structure involves screwing filter heads with certain gaps onto a plate with multiple holes. When the water caps are evenly distributed, a certain degree of uniform water collection can be achieved. However, in high-flow-rate equipment, the liquid collected by the perforated plate water cap will form eddies below the perforated plate, affecting the uniformity of water collection. Furthermore, in large-diameter equipment, the unequal distance between the water collection pipe and the water caps on the perforated plate results in a higher output from the water caps closer to the water collection pipe and a lower output from those farther away, causing uneven water collection. For equipment requiring the complete removal of filter media from the body, the uneven water collection and distribution of the typical perforated plate water cap structure prevents all filter media from being completely removed.

[0003] In a sodium ion exchanger for water treatment disclosed in CN201276440Y, the technical solution is as follows: It comprises a shell cylinder with a filter plate at the bottom inside the cylinder. The filter plate is a flat plate with filter holes on its surface. Filter caps are inserted into the filter holes, and the filter caps are arranged in a vertical plate arrangement with filter slots between the vertical plates. The filter caps are inserted into the filter holes by screws at the bottom and are fixed by nuts.

[0004] In operation, it is necessary to adjust the flow rate of the counter-current flow to prevent the resin layer from loosening due to excessive water flow. However, the filter caps in the existing technology cannot limit the flow of the counter-current liquid. Utility Model Content

[0005] The purpose of this invention is to address the problem that existing filter caps cannot adjust the flow rate, and to provide a filter cap for ion exchangers with adjustable backwash flow rate and a baffle plate made therefrom.

[0006] To achieve the above technical objectives, the following technical solution is provided: Firstly, a filter cap for an ion exchanger with controllable backwash flow rate includes a filter cap partition. The filter cap partition has filter holes on its surface, and a filter cap is inserted into the filter holes. The filter cap includes a screw at the bottom, which passes through the filter holes. The screw and a nut cooperate to fix the filter cap on the filter cap partition. The nut includes a fixing part sleeved outside the screw and a channel part that completely surrounds the tail end of the screw. The end of the channel part has a flow-limiting cavity, which is used to limit the flow rate of liquid entering the screw from the nut and then flowing out on the other side of the filter cap partition.

[0007] In one feasible embodiment, the flow-limiting cavity includes a baffle plate located at the end of the channel section, and the baffle plate has a flow hole communicating with the channel section.

[0008] In an feasible embodiment, the flow-limiting cavity also includes a flow-limiting element and a limiting stop located at the tail of the flow-limiting cavity, the flow-limiting element being able to move linearly within the flow-limiting cavity.

[0009] In one feasible embodiment, the flow restrictor has a flow restrictor frame, which is a cubical groove. The bottom surface of the groove contacts the partition plate, and a flow restrictor hole is provided on the bottom surface. The flow restrictor hole is concentrically arranged with the flow passage, and the radius of the flow restrictor hole is between 1mm and 5mm.

[0010] In one feasible embodiment, the flow-limiting frame also includes limiting reinforcing ribs, which are perpendicular to the bottom surface and located on the four sides of the tank and in contact with the flow-limiting cavity.

[0011] In one feasible approach, a side hole is provided on the side wall of the flow-limiting cavity.

[0012] Secondly, a backwash flow controllable baffle for an ion exchanger, the baffle having a plurality of filter holes of equal diameter, each filter hole having a filter cap of the first aspect, and each filter cap having an independent diameter of a flow-limiting hole.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The technical solution of this application controls the flow rate of the backflowing cleaning fluid entering the exchanger by setting a flow-limiting frame. The entire filter cap structure is simple and easy to install. Attached Figure Description

[0015] 1. Filter cap baffle, 2. Filter cap, 3. Screw, 4. Nut, 5. Channel section, 6. Flow limiting cavity, 7. Limiting flange

[0016] 61. Partition plate; 62. Flow hole; 63. Flow limiting component; 64. Flow limiting hole; 65. Limiting reinforcing rib; 66. Side hole; 63. Flow limiting frame.

[0017] Figure 1 This is a schematic diagram of the structure during installation in Embodiment 1;

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 1;

[0019] Figure 3 for Figure 2 Side view;

[0020] Figure 4 for Figure 3 Sectional view at point AA;

[0021] Figure 5 This is an explosion diagram of Embodiment 1;

[0022] Figure 6 for Figure 5 Side view;

[0023] Figure 7 for Figure 6 Sectional view at point BB; Detailed Implementation

[0024] like Figures 1-7 The first embodiment shown is a filter cap for an ion exchanger with controllable backwash flow rate, including a filter cap partition 1. The filter cap partition 1 has filter holes on its surface, and a filter cap 2 is inserted into the filter holes. The filter cap 2 includes a screw 3 located at the bottom. The screw 3 passes through the filter holes, and then the screw 3 cooperates with a nut 4 to fix the filter cap 2 onto the filter cap partition 1. The nut 4 includes a fixing part sleeved on the outside of the screw 3 and a channel part 5 that completely surrounds the tail end of the screw 3. The end of the channel part 5 has a flow-limiting cavity 6, which is used to limit the flow rate of liquid entering the screw 3 from the nut 4 and then flowing out on the other side of the filter cap partition 1.

[0025] In this embodiment, the flow-limiting cavity 6 includes a partition 61 located at the end of the channel portion 5, and a flow hole 62 communicating with the channel portion 5 is provided on the partition 61. The flow-limiting cavity 6 also includes a flow-limiting element 63, a limiting stop 7 located at the tail of the flow-limiting cavity 6, and the flow-limiting element 63 can move linearly within the flow-limiting cavity 6. Furthermore, the flow-limiting element 63 has a flow-limiting frame 631, which is a cubical groove. The bottom surface of the groove contacts the partition 61, and a flow-limiting hole 64 is provided on the bottom surface. The flow-limiting hole 64 is concentrically arranged with the flow hole 62, and the radius of the flow-limiting hole 64 is between 1mm and 5mm. In this embodiment, some flow-limiting elements 63 within the flow-limiting cavity 6 have only one flow-limiting hole 64 on the bottom surface of their flow-limiting frame 631, and the radius of the flow-limiting hole 64 is randomly selected from five models: 1mm, 2mm, 3mm, 4mm, and 5mm.

[0026] The flow-limiting frame 631 also includes limiting reinforcing ribs 65, which are perpendicular to the bottom surface and located on the four sides of the groove, contacting the flow-limiting cavity 6. Then, the flow-limiting element 63 is held in place by the limiting baffle 7, allowing it to move linearly within the flow-limiting cavity 6. In this embodiment, the flow-limiting element 63 is made of plastic and has a certain degree of deformation capability; it can be inserted into the flow-limiting cavity 6 at the limiting baffle 7 through simple compression. In another embodiment, a side hole 66 is provided on the side wall of the flow-limiting cavity 6.

[0027] Example 2: A backwash flow controllable baffle for an ion exchanger. The baffle has several filter holes of equal diameter. Each filter hole contains a filter cap as described in Example 1, and the diameter of the flow-limiting orifice 64 in each filter cap is independent. In this example, one filter cap is placed in each filter hole. The number of flow-limiting orifices 64 on the flow-limiting frame 631 of each filter cap is randomly selected, and the radius of the flow-limiting orifice 64 is also randomly selected from five different models.

[0028] In practical operation, during forward filtration, the flow restrictor 63 is in contact with the limiting block 7 at the end of the flow restricting cavity 6. At this time, the filtrate enters the flow restricting cavity 6 through the flow hole 62, flows into the limiting block 7 through the inside and outside of the flow restrictor 63, and the flow restrictor 63 has no flow restriction function. During reverse flow, the flow restrictor 63 is pushed to the partition 61 by the liquid. At this time, the flow restricting frame 631 covers the flow hole 62, and the liquid can only enter the flow restricting frame 631 and then the flow hole 62 through the flow restricting holes 64. These multiple sets of flow restricting holes 64, as well as the various sizes of flow restricting holes 64, work together to ensure a stable flow of liquid into the ion exchanger during reverse flow.

[0029] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this patent application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A filter cap for an ion exchanger with controllable backwash flow rate, comprising a filter cap partition (1), wherein the surface of the filter cap partition (1) has filter holes, and a filter cap (2) is inserted into the filter holes. The filter cap (2) includes a screw (3) disposed at the bottom, the screw (3) passing through the filter hole, and then the screw (3) cooperating with a nut (4) to fix the filter cap (2) on the filter cap partition (1), characterized in that, The nut (4) includes a fixing part sleeved on the outside of the screw (3) and a channel part (5) that completely surrounds the tail end of the screw (3). The end of the channel part (5) has a flow-limiting cavity (6), which is used to limit the flow rate of liquid entering the screw (3) from the nut (4) and then flowing out on the other side of the filter cap partition (1).

2. The filter cap for ion exchangers with controllable backwash flow rate according to claim 1, characterized in that, The flow-limiting cavity (6) includes a partition (61), which is located at the end of the channel (5), and the partition (61) has a flow hole (62) communicating with the channel (5).

3. The filter cap for ion exchangers with controllable backwash flow rate according to claim 2, characterized in that, The flow-limiting cavity (6) further includes a flow-limiting element (63) and a limiting stop (7) located at the tail of the flow-limiting cavity (6). The flow-limiting element (63) can move linearly within the flow-limiting cavity (6).

4. The filter cap for ion exchangers with controllable backwash flow rate according to claim 3, characterized in that, The flow limiting component (63) has a flow limiting frame (631), which is a cubical groove. The bottom surface of the groove is in contact with the partition (61), and a flow limiting hole (64) is provided on the bottom surface. The flow limiting hole (64) is concentrically arranged with the flow hole (62), and the radius of the flow limiting hole (64) is between 1mm and 5mm.

5. The filter cap for ion exchangers with controllable backwash flow rate according to claim 4, characterized in that, The flow-limiting frame (631) also includes a limiting reinforcing rib (65), which is perpendicular to the bottom surface and located on the four sides of the groove and in contact with the flow-limiting cavity (6).

6. The filter cap for ion exchangers with controllable backwash flow rate according to claim 3 or 5, characterized in that, A side hole (66) is provided on the side wall of the flow-limiting cavity (6).

7. A baffle plate for an ion exchanger with controllable backwash flow rate, characterized in that, The partition is provided with a number of filter holes of equal diameter, and each filter hole is provided with a filter cap for backwashing flow controllable of any one of the ion exchangers according to claims 1-6, and the diameter of the flow-limiting hole (64) in each filter cap is independent.

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