Multi-stage water distribution device for high-speed flow mixed ion exchange device

Abstract

The utility model discloses a multi-stage water distribution device for a high-speed flow mixing ion exchange device, which comprises an end cover, a water inlet main pipe, water inlet branch pipes, a first-stage water distribution perforated plate and a second-stage water distribution perforated plate, the water inlet main pipe is arranged at the top of the end cover, the water inlet main pipe is provided with a plurality of water inlet branch pipes, and the first-stage water distribution perforated plate is provided with a plurality of second-stage water distribution perforated plates. The bottom of the water inlet branch pipe is connected with a first-stage water distribution perforated plate, a second-stage water distribution perforated plate is arranged below the first-stage water distribution perforated plate, the top of the end cover is provided with a plurality of hanging rods, the second-stage water distribution perforated plate is hung at the bottoms of the hanging rods, and the area of the first-stage water distribution perforated plate is smaller than that of the second-stage water distribution perforated plate. According to the utility model, first-stage water distribution is completed by the branch mother pipe, second-stage water distribution is performed by the first-stage water distribution porous plate, and third-stage water distribution is completed by the second-stage water distribution device, so that the turbulence intensity of the last stage can be effectively reduced in a high-speed flow state by adopting the structure, and the equipment safety problem caused by disturbance of resin is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ion exchange devices, in particular to the technical field of multi-stage water distribution devices used for high-speed flow mixed ion exchange devices. Background Art

[0002] At present, in the field of industrial water treatment, the water distribution device used in the large-diameter ion exchange equipment usually has a mother branch pipe type water distribution device or a spliced ​​stainless steel porous plate water distribution device. The mother branch pipe water distribution is composed of several pipes of different diameters, that is, a horizontal mother pipe with a larger diameter is connected to a vertical short pipe of equal diameter and connected to the water inlet through a hole in the middle, and a horizontal branch pipe with a smaller diameter is connected at both ends. Each horizontal branch pipe is connected to a short pipe through a 90° elbow at both ends, and a horizontal baffle is connected to the lower end of each short pipe. There is a certain gap between the lower end of the short pipe and the horizontal baffle. The water flows through the uppermost mother pipe to each branch pipe, and finally flows out from the lowermost gap. This structure will produce strong turbulence under high flow rate (flow rate greater than 60m / h) conditions, causing severe disturbance of the resin inside the ion exchange equipment, seriously affecting the safe and stable operation of the equipment. The uniformity of water distribution in the water distribution device using a spliced ​​porous plate water distributor has been improved, but when used in large-diameter ion exchange equipment such as 3000mm to 4200mm, the circular water distribution plate of its overall structure can only be processed with thinner (such as 6mm or 8mm) stainless steel plates, and the strength cannot be guaranteed; if a thicker stainless steel plate is used to ensure strength, the stainless steel plate cannot form a right angle when folding, and there will be a large gap. At high flow rates (especially when the flow rate is greater than 80m / h), the water flow at the gap causes more violent turbulence inside the equipment, causing the resin inside the ion exchange equipment to be violently disturbed, bringing hidden dangers to the safe and stable operation of the equipment. In addition, due to the existence of a large gap, when two different resin fillers are mixed twice inside the equipment due to process requirements, the resin particles can easily pass through the gap and enter the top of the water distribution device, bringing safety hazards to the operation of the equipment. Utility Model Content

[0003] The purpose of the utility model is to solve the problems in the prior art and to propose a multi-stage water distribution device for a high-speed flow mixed ion exchange device, which can solve the problems that the water distribution effect of the existing high-speed flow mixed bed water distribution device is not uniform enough and the operating stability of the water distribution device is insufficient under high-speed flow conditions.

[0004] To achieve the above-mentioned purpose, the utility model proposes a multi-stage water distribution device for a high-speed flow mixed ion exchange device, comprising an end cover, a water inlet main pipe, a water inlet branch pipe, a primary water distribution porous plate and a secondary water distribution porous plate, wherein the water inlet main pipe is installed on the top of the end cover, and a plurality of water inlet branch pipes are arranged on the water inlet main pipe, a primary water distribution porous plate is connected to the bottom of the water inlet branch pipe, a secondary water distribution porous plate is arranged below the primary water distribution porous plate, a plurality of suspension rods are installed on the top of the end cover, and the secondary water distribution porous plate is suspended at the bottom of the suspension rods, and the area of ​​the primary water distribution porous plate is smaller than the area of ​​the secondary water distribution porous plate.

[0005] Preferably, a gap is left between the primary water distribution porous plate and the inner wall of the end cover.

[0006] Preferably, a water outlet hole is provided on the water inlet branch pipe, and the diameter of the water outlet hole is 1 / 2-2 / 3 of the diameter of the water inlet branch pipe.

[0007] Preferably, the distance between the primary water distribution porous plate and the secondary water distribution porous plate is 1 / 3-1 / 4 of the height of the end cover.

[0008] Preferably, the radius of the primary water distribution porous plate is 4 / 5-6 / 7 of the radius of the secondary water distribution porous plate.

[0009] Preferably, the water inlet branch pipe is fixed to the water inlet main pipe by welding, and the water inlet branch pipe is fixed to the primary water distribution porous plate by welding.

[0010] The beneficial effects of the utility model are as follows: the utility model uses a branch pipe to complete the first-level water distribution, a first-level water distribution porous plate to perform the second-level water distribution, and then a second-level water distribution device to complete the third-level water distribution. This structure can effectively reduce the turbulence intensity of the last stage under high-speed flow (flow rate greater than 60m / h) conditions, thereby reducing equipment safety problems caused by resin disturbance and improving the uniformity of water distribution; the multi-stage water distribution device can effectively reduce the water flow disturbance suffered by the last stage, so that thinner porous plates can be used, and the processing accuracy requirements are correspondingly reduced, reducing the processing difficulty and processing costs.

[0011] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure: 1. end cover; 2. water inlet main pipe; 3. water inlet branch pipe; 4. primary water distribution porous plate; 5. secondary water distribution porous plate; 6. suspension rod; 7. gap. DETAILED DESCRIPTION

[0014] See also Figure 1A multi-stage water distribution device for a high-speed flow mixed ion exchange device comprises an end cover 1, a water inlet main pipe 2, a water inlet branch pipe 3, a primary water distribution porous plate 4 and a secondary water distribution porous plate 5, wherein the water inlet main pipe 2 is installed on the top of the end cover 1, a plurality of water inlet branch pipes 3 are arranged on the water inlet main pipe 2, a primary water distribution porous plate 4 is connected to the bottom of the water inlet branch pipe 3, a secondary water distribution porous plate 5 is arranged below the primary water distribution porous plate 4, a plurality of suspension rods 6 are installed on the top of the end cover 1, the secondary water distribution porous plate 5 is suspended at the bottom of the suspension rod 6, and the area of ​​the primary water distribution porous plate 4 is Smaller than the area of ​​the secondary water distribution porous plate 5; a gap 7 is left between the primary water distribution porous plate 4 and the inner wall of the end cover 1; a water outlet hole is opened on the water inlet branch pipe 3, and the diameter of the water outlet hole is 1 / 2-2 / 3 of the diameter of the water inlet branch pipe 3; the distance between the primary water distribution porous plate 4 and the secondary water distribution porous plate 5 is 1 / 3-1 / 4 of the height of the end cover 1; the radius of the primary water distribution porous plate 4 is 4 / 5-6 / 7 of the radius of the secondary water distribution porous plate 5; the water inlet branch pipe 3 is welded and fixed to the water inlet mother pipe 2, and the water inlet branch pipe 3 is welded and fixed to the primary water distribution porous plate 4.

[0015] The utility model is composed of a branch pipe and a porous plate. First, the water inlet on the equipment is welded to the water inlet mother pipe, and multiple water inlet branch pipes are welded to the mother pipe. The branch pipes are provided with small holes, the number of which depends on the length of the branch pipe, and the length of the branch pipe is determined by the diameter of the equipment. Below the branch pipe, a primary water distribution porous plate is installed, which is welded and fixed to the branch pipe. The number of circular holes on the porous plate is determined by the diameter of the equipment. Below the primary water distribution porous plate is a secondary water distribution porous plate.

[0016] The water completes the first level of water distribution through the branch pipe, enters the first level water distribution device (first level water distribution porous plate) for the second level of water distribution, and then passes through the second level water distribution device (second level water distribution porous plate) to complete the third level of water distribution.

[0017] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A multi-stage water distribution device for a high-speed flow mixed ion exchange device, characterized in that: The invention comprises an end cover (1), a water inlet main pipe (2), a water inlet branch pipe (3), a primary water distribution porous plate (4) and a secondary water distribution porous plate (5), wherein the water inlet main pipe (2) is installed on the top of the end cover (1), a plurality of water inlet branch pipes (3) are arranged on the water inlet main pipe (2), a primary water distribution porous plate (4) is connected to the bottom of the water inlet branch pipe (3), a secondary water distribution porous plate (5) is arranged below the primary water distribution porous plate (4), a plurality of suspension rods (6) are installed on the top of the end cover (1), the secondary water distribution porous plate (5) is suspended at the bottom of the suspension rods (6), and the area of ​​the primary water distribution porous plate (4) is smaller than the area of ​​the secondary water distribution porous plate (5).

2. The multi-stage water distribution device for a high-speed flow mixed ion exchange device according to claim 1, characterized in that: A gap (7) is left between the primary water distribution porous plate (4) and the inner wall of the end cover (1).

3. The multi-stage water distribution device for a high-speed flow mixed ion exchange device according to claim 1, characterized in that: The water inlet branch pipe (3) is provided with a water outlet hole, and the diameter of the water outlet hole is 1 / 2-2 / 3 of the diameter of the water inlet branch pipe (3).

4. The multi-stage water distribution device for a high-speed flow mixed ion exchange device according to claim 1, characterized in that: The distance between the primary water distribution porous plate (4) and the secondary water distribution porous plate (5) is 1 / 3 to 1 / 4 of the height of the end cover (1).

5. The multi-stage water distribution device for a high-speed flow mixed ion exchange device according to claim 1, characterized in that: The radius of the primary water distribution porous plate (4) is 4 / 5-6 / 7 of the radius of the secondary water distribution porous plate (5).

6. The multi-stage water distribution device for a high-speed flow mixed ion exchange device according to claim 1, characterized in that: The water inlet branch pipe (3) is fixed to the water inlet main pipe (2) by welding, and the water inlet branch pipe (3) is fixed to the primary water distribution porous plate (4) by welding.

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