Filtering device for ion desalter

Abstract

The utility model discloses a filtering device for an ion desalter. The filtering device comprises a water distribution connecting seat, a fixed bracket, a water distribution pipe, a liquid outlet group, a closed end cover, a flow guide groove and a fixed boss, through the mode, the filtering device for the ion desalter not only improves the strength and the stability of the whole filtering device, but also effectively improves the efficiency and the effect of filtering and screening, facilitates the disassembly and assembly of the screen mesh, and is favorable for prolonging the service life of the screen mesh.

Description

Technical Field

[0001] The utility model relates to the technical field of desalination equipment, in particular to a filtering device used for an ion desalination equipment. Background Art

[0002] The ion demineralizer removes cations or anions in the medium through resin, and the function of the filter device in the ion demineralizer is to ensure that the resin in the demineralizer does not flow out of the ion demineralizer with the medium.

[0003] Currently, ion demineralizer filtration devices either use flat screens or weld the screens to water pipes. However, the screens of these two structures are difficult to disassemble and assemble, making replacement and maintenance inconvenient. In addition, the current water inlet branch pipe only relies on its connection with the main water inlet pipe as a fulcrum, which has poor stability. After long-term use, the branch pipe may become stuck or even deformed due to uneven force. Horizontally arranged pipes can easily cause liquid accumulation in the pipes, affecting filtration efficiency and effect. Utility Model Content

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0005] Provided is a filtering device for an ion demineralizer, which includes a water distribution connection seat, a fixing bracket, a water distribution pipe, a liquid discharge port group, a closed end cover, a guide groove, a fixing boss, a screen assembly, and a connection end seat.

[0006] The fixed bracket is arranged in the ion demineralizer, and the water distribution connection seat connected to the water inlet or water inlet pipe on the ion demineralizer is arranged on the fixed bracket, and the water distribution connection seat is movably connected with a plurality of water distribution pipes along its radial array, and the outer port of the water distribution pipe is connected with the closed end cover for closing the outer port, and the closed end cover is connected to the fixed boss on the inner wall of the ion demineralizer, and multiple groups of drainage port groups are axially arranged on the water distribution pipe, and each group of drainage port groups includes a plurality of waist-shaped drainage ports arranged at intervals, and the inner end of the closed end cover extends into the water distribution pipe and is tightly attached to the inner wall of the water distribution pipe, and the thickness of the extended part gradually decreases from the outside to the inside to form a diversion ramp.

[0007] The screen assembly includes several reinforcing ribs arranged along the axial direction of the water distribution pipe to form a U-shaped grid that matches the water distribution pipe structure. The lower part of the grid is arranged on the outside of the lower part of the water distribution pipe, and the side parts of the grid are vertically arranged on both sides of the water distribution pipe. The height of the top of the side part is greater than or equal to the top of the water distribution pipe, and a gap is provided between the grid and the water distribution pipe. A plurality of screen bars are arranged on the outer side wall of the grid along the radial array of the grid, and a filtering channel is formed between two adjacent arc-shaped screen bars. The cross-section of the screen bar is a rounded triangle structure. A connecting end seat is provided at each end of the screen assembly, one connecting end seat is detachably connected to the fixed bracket, and the other connecting end seat is detachably connected to the fixed boss to fix the screen assembly.

[0008] In a preferred embodiment of the present invention, the water distribution connection seat adopts a circular water distributor with multiple liquid outlet interfaces.

[0009] In a preferred embodiment of the present invention, eight water distribution pipes of the same size are connected to the water distribution connection seat.

[0010] In a preferred embodiment of the present invention, the inner end of the water distribution pipe is threadedly connected to the liquid outlet interface on the water distribution connection seat, so that the water distribution pipe is communicated with the water distribution connection seat.

[0011] In a preferred embodiment of the present invention, the closed end cover is connected to the fixing boss by bolts or flanges.

[0012] In a preferred embodiment of the present invention, the height of the drainage port group located at the top is less than or equal to 3 / 4 of the vertical diameter of the water distribution pipe.

[0013] In a preferred embodiment of the present invention, a guide groove with an arc structure connected to the guide ramp is provided on the inner wall of the closed end cover.

[0014] In a preferred embodiment of the present invention, the closed end cover is connected to the water distribution pipe by threads, screws, welding or integral molding.

[0015] In a preferred embodiment of the present invention, the inner end portion of the cross section of the reinforcing rib is an inwardly protruding structure.

[0016] In a preferred embodiment of the present invention, the caliber of the filter channel gradually increases from the inside to the outside.

[0017] The beneficial effects of the utility model are: not only the strength and stability of the entire filtering device are improved, but also the efficiency and effect of filtering and screening are effectively improved, and the disassembly and assembly of the screen is convenient, which is conducive to extending the service life of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 This is a structural schematic diagram of a preferred embodiment of a filtering device for an ion demineralizer according to the present invention;

[0020] Figure 2 This is a partial top view of a preferred embodiment of a filtering device for an ion demineralizer according to the present invention;

[0021] Figure 3 This is a schematic diagram of the water distribution pipe structure of a preferred embodiment of a filtering device for an ion demineralizer of the present invention;

[0022] Figure 4 This is a schematic structural diagram of a screen assembly of a preferred embodiment of a filtering device for an ion demineralizer according to the present invention;

[0023] Figure 5 The utility model is a schematic cross-sectional structure diagram of a screen assembly of a preferred embodiment of a filtering device for an ion demineralizer. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5 , the embodiments of the present utility model include:

[0026] A filtering device for an ion demineralizer comprises a water inlet assembly and a screen assembly 3.

[0027] The water inlet assembly includes a water distribution connection seat (such as a circular or polygonal water distributor, etc.) 11, a fixing bracket 12, a water distribution pipe 13, a liquid discharge port group 14, a closed end cover 15, a guide groove 16, and a fixing boss 17.

[0028] The fixed bracket is set on the upper part of the ion demineralizer 1 (can be connected by screws or directly welded inside the demineralizer), the water distribution connection seat is set on the fixed bracket, and the water inlet of the water distribution connection seat is connected to the water inlet or water inlet pipe 2 on the ion demineralizer.

[0029] A water distribution connection seat can be simultaneously arranged with 6, 8, or more water distribution pipes connected in an array. This not only increases the number of water distribution pipes, but also allows the length of each water distribution pipe to be increased (the length is slightly smaller than the inner diameter of the ion demineralizer) while maintaining the same length of each water distribution pipe, thereby improving the uniformity and efficiency of the medium diversion. Among them, one end of the water distribution pipe is threadedly connected to the liquid outlet interface 19 on the water distribution connection seat (the liquid outlet interface and the outer wall of the water distribution pipe end are provided with matching threads), and can be further locked and fixed with a locking nut, etc., so that the water distribution pipe is connected to the water distribution connection seat. The other end is provided with a closed end cap, and the closed end cap can be connected to the fixed boss on the inner wall of the ion demineralizer by means of bolts and nuts or flange bolts, etc., to improve the stability of the water distribution pipe and extend the service life of the water distribution pipe.

[0030] Multiple drainage port groups are axially arranged on the outer wall of the water distribution pipe, and each drainage port group includes multiple waist-shaped drainage ports arranged at intervals. The drainage port groups are arranged at 1 / 2-3 / 4 of the water distribution pipe, starting from the lowest point of the water distribution pipe.

[0031] The inner end of the closed end cap extends into the water distribution pipe and fits snugly against the inner wall of the water distribution pipe. The thickness of the extended portion gradually decreases from the outside to the inside, forming a diversion ramp 18. Furthermore, an arc-shaped diversion groove connected to the diversion ramp can be provided on the inner wall of the closed end cap, allowing the transported medium to quickly flow back to the inner waist-shaped drain port for discharge, improving drainage efficiency and preventing liquid accumulation in the pipe. The closed end cap can be connected to the water distribution pipe seal (sealing ring) via threads or screws.

[0032] The screen assembly is arranged outside the water distribution pipe and includes several reinforcing ribs 21 arranged along the axial direction of the water distribution pipe to form a U-shaped grid 22 that matches the water distribution pipe structure, and a gap is set between the U-shaped grid and the water distribution pipe.

[0033] Specifically, the lower part of the U-shaped grid is wrapped around the outer side of the lower part of the water distribution pipe, the side walls of the U-shaped grid are vertically arranged on both sides of the water distribution pipe, and the height of the top of the U-shaped grid side wall is greater than or equal to the highest point of the water distribution pipe.

[0034] Specifically, the radial cross-section of the reinforcing rib is an inwardly protruding semicircular structure, so that the medium can flow onto the screen bars for filtration and screening more quickly without accumulation.

[0035] Multiple screen bars 23 are arranged in a radial array along the water distribution pipe on the outer wall of the reinforcement ribs. A filter channel 24 is provided between adjacent curved screen bars to filter the fluid medium. The screen bars are generally U-shaped or arc-shaped, with a triangular radial cross-section and rounded corners.

[0036] Specifically, the filtering channel is perpendicular to the waist-shaped drainage port.

[0037] Specifically, the diameter of the filter channel gradually increases from the inside to the outside.

[0038] This structure of the screen assembly can not only improve the overall stability and filtering effect of the screen, but also will not damage the resin particles during filtration, will not waste materials and increase costs, and provide a basis for the convenience of subsequent disassembly and assembly of the screen assembly.

[0039] A connecting end seat 25 is provided at each end of the screen assembly, one connecting end seat is connected to the fixed bracket under the water distribution pipe, and the other connecting end seat is connected to the fixed boss under the water distribution pipe by screws or flange bolts to fix the screen assembly, wherein the connecting end seat can adopt a flange or other connection structure.

[0040] Specifically, a lug is horizontally provided on the top or outer side of the connection end base, and the lug is screwed to the fixing bracket (the boss on it) and the fixing boss, respectively. Alternatively, the connection end base is directly connected to the fixing bracket and the fixing boss by bolts or screws.

[0041] When the screen needs to be replaced or maintained, the staff can remove the screws / bolts on the connecting end seat from the manual inspection port / inspection door on the side or top of the ion demineralizer, and take out the screen without moving the water distribution pipe. After maintenance or when a new screen is installed, it can be entered through the inspection port / inspection door, which can effectively improve the disassembly and assembly efficiency.

[0042] The beneficial effects of the filter device for an ion demineralizer of the utility model are: not only the strength and stability of the entire filter device are improved, but also the efficiency and effect of filtration and screening are effectively improved, and the disassembly and assembly of the screen is convenient, which is conducive to extending the service life of the screen.

[0043] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A filtering device for an ion demineralizer, characterized in that: include: Water distribution connection seat, fixed bracket, water distribution pipe, drainage port group, closed end cover, guide groove, fixed boss, screen assembly, connection end seat, The fixed bracket is arranged in the ion demineralizer, and the water distribution connection seat connected to the water inlet or water inlet pipe on the ion demineralizer is arranged on the fixed bracket, and the water distribution connection seat is movably connected with a plurality of water distribution pipes along its radial array, and the outer port of the water distribution pipe is connected with the closed end cover for closing the outer port, and the closed end cover is connected to the fixed boss on the inner wall of the ion demineralizer, and multiple groups of drainage port groups are axially arranged on the water distribution pipe, and each group of drainage port groups includes a plurality of waist-shaped drainage ports arranged at intervals, and the inner end of the closed end cover extends into the water distribution pipe and is tightly attached to the inner wall of the water distribution pipe, and the thickness of the extended part gradually decreases from the outside to the inside to form a diversion ramp. The screen assembly includes several reinforcing ribs arranged along the axial direction of the water distribution pipe to form a U-shaped grid that matches the water distribution pipe structure. The lower part of the grid is arranged on the outside of the lower part of the water distribution pipe, and the side parts of the grid are vertically arranged on both sides of the water distribution pipe. The height of the top of the side part is greater than or equal to the top of the water distribution pipe, and a gap is provided between the grid and the water distribution pipe. A plurality of screen bars are arranged on the outer side wall of the grid along the radial array of the grid, and a filtering channel is formed between two adjacent arc-shaped screen bars. The cross-section of the screen bar is a rounded triangle structure. A connecting end seat is provided at each end of the screen assembly, one connecting end seat is detachably connected to the fixed bracket, and the other connecting end seat is detachably connected to the fixed boss to fix the screen assembly.

2. A filtering device for an ion demineralizer according to claim 1, characterized in that: The water distribution connection seat adopts a circular water distributor with multiple liquid outlet interfaces.

3. The filtering device for an ion demineralizer according to claim 1, characterized in that: The water distribution connection seat is connected to 8 water distribution pipes of the same size.

4. The filtering device for an ion demineralizer according to claim 1, characterized in that: The inner end of the water distribution pipe is threadedly connected to the liquid outlet interface on the water distribution connection seat, so that the water distribution pipe is communicated with the water distribution connection seat.

5. The filtering device for an ion demineralizer according to claim 1, characterized in that: The closed end cover is connected to the fixing boss by bolts or flanges.

6. The filtering device for an ion demineralizer according to claim 1, characterized in that: The height of the drainage port group located at the top is less than or equal to 3 / 4 of the vertical diameter of the water distribution pipe.

7. The filtering device for an ion demineralizer according to claim 1, characterized in that: An arc-shaped guide groove connected to the guide ramp is provided on the inner wall of the closed end cover.

8. The filtering device for an ion demineralizer according to claim 1, characterized in that: The closed end cover is connected to the water distribution pipe by thread, screw, welding or integral molding.

9. The filtering device for an ion demineralizer according to claim 1, characterized in that: The inner end portion of the cross section of the reinforcing rib is an inwardly protruding structure.

10. The filtering device for an ion demineralizer according to claim 1, characterized in that: The diameter of the filter flow channel gradually increases from the inside to the outside.

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