Water distribution cover and Fenton oxidation tower with same

Abstract

The water distribution cover comprises a cover body and a baffle, a circle of long-strip-hole-shaped water distribution inlets are evenly distributed in the cover body in the circumferential direction, the length direction of the long-strip-hole-shaped water distribution inlets is arranged along the radius of the cover body, and the baffle is correspondingly arranged above the water distribution inlets. A water distribution space is formed by the baffle and the surface of the cover body, an opening in one side of the water distribution space forms a water distribution outlet, and the water distribution mode is changed from direct upward water distribution from the lower portion to a lower-inlet and side-outlet mode through the baffle. The Fenton oxidation tower comprises a cylinder body, a cylinder cover, a reagent inlet, a water distribution cover and a water outlet. The device is simple in structure and reasonable in design, the water distribution direction is from the lower part to the side part, the Fenton reagent reaction time is prolonged, and the water distribution outlet is not easy to block.

Description

Technical Field

[0001] The utility model relates to a water distribution cover and a Fenton oxidation tower, in particular to a water distribution cover in a Fenton oxidation tower and a Fenton oxidation tower with the water distribution cover. Background Art

[0002] The Fenton oxidation reaction is a reaction in which the Fenton reagent composed of ferrous ions and hydrogen peroxide reacts to generate highly oxidizing hydroxyl radicals. The commonly used Fenton oxidation equipment is the Fenton oxidation tower, which is a vertical tower. The Fenton reagent is mixed in the tower by distributing water upwards to react, and finally water is discharged from the top. The Fenton oxidation tower equipment has low capital investment cost, simple operation, and small footprint, and has been widely used in recent years.

[0003] The water distribution device is a commonly used device in water treatment. Its purpose is to arrange the water volume on a certain working surface according to a certain rule to achieve the purpose of uniform water distribution and improve the water treatment effect. Whether the Fenton oxidation reaction is sufficient is related to the water distribution form. Chinese utility model patent ZL 201921474519.8 discloses a water flow distributor for a Fenton oxidation tank, including a mounting plate slidably mounted in the tank body, a diversion hole is opened on the mounting plate, and a diversion plate is installed in the diversion hole. This is a single-layer perforated water distribution method. Like the ordinary direct hole water distributor, there are still problems such as short reaction time of Fenton reagent and easy blockage of the water outlet of the water distributor. In addition, in order to make the Fenton reagent react fully, some of the prior art also adopts multi-pipe cross-mixed flow water distribution, but its structure is complex, the later cleaning is difficult, and the manufacturing cost and operating cost are high.

[0004] Therefore, the Fenton oxidation tower still has problems such as insufficient reaction of the Fenton reagent, easy blockage of the water distribution outlet, and complex structure of the Fenton tower and the water distribution device that are difficult to clean. Utility Model Content

[0005] In order to solve the above deficiencies in the prior art, the utility model aims to provide a water distribution hood and a Fenton oxidation tower with a water distribution hood, which can increase the reaction time of the Fenton reagent while ensuring uniform water distribution, allowing it to react fully, and the water distribution port is not easily blocked, and the water distribution structure is simple and easy to clean.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a water distribution hood, including a hood body and a baffle, characterized in that: a circle of water distribution inlets are evenly distributed along the circumferential direction on the hood body, and the water distribution inlets are in the shape of long strips of holes, and their length direction is arranged along the radius of the water distribution hood; a baffle is correspondingly arranged on a water distribution inlet, and the baffle includes a first baffle and a second baffle, the first baffle is arranged on one side of a long side of the water distribution inlet and extends in a direction away from the water distribution inlet, and the second baffle is connected to the first baffle and extends in a direction to block the water distribution inlet, so that the first baffle, the second baffle and the surface of the hood body form a water distribution space, and the water distribution inlet is completely located below the water distribution space; the opening on one side of the water distribution space forms a water distribution outlet, and water flows through the water distribution inlet from below and flows out from the side water distribution outlet along the first baffle and the second baffle.

[0007] As a limitation of the present invention: the angle between the first baffle and the surface of the cover body toward the water distribution outlet is 30° to 90°.

[0008] As a limitation of the present utility model: a third baffle extending toward the cover body is provided at one end of the second baffle at the water distribution outlet, and a water distribution outlet is formed between the extended end of the third baffle and the surface of the cover body.

[0009] As a limitation of the present utility model: the water outlet directions of the water distribution outlets are all in the same direction along the circumference of the cover body.

[0010] As a limitation of the present utility model: the number of the water distribution inlets is 6 to 12.

[0011] As a limitation of the present utility model: the cover body is umbrella-shaped, and the top angle of the umbrella is 130° to 160°.

[0012] The utility model also provides a Fenton oxidation tower, comprising a cylinder, a cylinder cover, a reagent inlet and a water outlet, characterized in that a water distribution hood described in the utility model is provided in the cylinder body near the lower end, and the outer peripheral edge of the water distribution hood is connected to the side wall in the cylinder body; a reagent inlet is provided in the cylinder body side wall near the lower end, and the position of the reagent inlet is lower than the position of the water distribution hood; a water outlet is provided in the cylinder body side wall near the upper end, and the position of the water outlet is higher than the position of the water distribution hood.

[0013] As a limitation of the present invention: the reagent inlet includes a hydrogen peroxide inlet and a ferrous sulfate inlet.

[0014] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0015] (1) The utility model water distribution cover is provided with a plurality of long hole-shaped water distribution inlets, and a water distribution outlet is formed between the baffle and the cover body. The water flow must enter the water distribution space from below through the water distribution inlet and then flow out from the water distribution outlet located on one side, that is, the water flows in from below and out from the side. The water flow can be controlled by adjusting the number of water distribution inlets and the shape of the baffle. The change in the water outlet mode of the water distribution cover increases the time of the Fenton oxidation reaction and allows the Fenton reagent to react fully. The long hole-shaped water distribution inlet, water distribution outlet and the water distribution mode of entering from below and out from the side make it difficult for the water distribution outlet to be blocked.

[0016] (2) Based on the water distribution cover of the utility model, a Fenton oxidation tower is provided. The water distribution cover of the utility model is arranged at the lower end of the oxidation tower cylinder, and the water distribution cover is connected to the side wall of the cylinder. The Fenton reagent is fully mixed and reacted under the water distribution cover, and the water flows through the water distribution cover and enters the upper area uniformly. The internal structure of the Fenton oxidation tower is simple and easy to clean.

[0017] In summary, the utility model has a simple structure and low cost, and helps to enhance the reaction effect of Fenton reagent while meeting the requirement of uniform water distribution. In addition, the water distribution port is not easy to be blocked and is easy to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the internal structure of Embodiment 1 of the present utility model;

[0020] Figure 2 It is a top view of embodiment 1 of the utility model;

[0021] Figure 3 For this utility model Figure 2 Sectional view of the AA plane;

[0022] Figure 4 This is a front view of Embodiment 2 of the present utility model;

[0023] Figure 5 It is a top view of embodiment 2 of the utility model.

[0024] In the figure: 1-cover body, 2-water distribution inlet, 3-baffle, 31-first baffle, 32-second baffle, 33 third baffle, 4-water distribution outlet, 5-cylinder body, 6-cylinder cover, 7a / b-hydrogen peroxide water inlet, 8a / b-ferrous sulfate water inlet, 9-water outlet area, 10-water outlet, 11a / b-drainage outlet, 12a / b-manhole, 13-sulfuric acid addition port, 14-PH meter installation port, 15-ORP meter installation port. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the water distribution hood and the Fenton oxidation tower with the water distribution hood described herein are preferred embodiments, which are only used to illustrate and explain the present invention and do not constitute a limitation on the present invention.

[0026] The directional terms or positional relationships such as "upper" and "lower" described in the present invention are based on the directional relationships in the drawings of the present invention specification and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the content protected by the present invention.

[0027] Example 1 A water distribution cover

[0028] In this embodiment, Figures 1 to 3 As shown, a water distribution cover includes a cover body 1 and a baffle 3. A plurality of water distribution inlets 2 are evenly distributed along the circumferential direction on the cover body 1. The water distribution inlet 2 is in the shape of a long strip hole arranged along the radius of the cover body 1. A baffle 3 is correspondingly arranged on each water distribution inlet 2. The baffle 3 includes a first baffle 31, a second baffle 32, and a third baffle 33. The first baffle is arranged on one side of a long side of the water distribution inlet 2 and extends in a direction away from the water distribution inlet. The first baffle 31 forms a certain angle with the surface of the cover body 1 toward the water distribution outlet 4. The range of the angle can be set to 30° to 90°, and 45° is preferred in this embodiment. The second baffle 32 is connected to the first baffle 31 and extends in the direction of shielding the water distribution inlet. The second baffle 32 is located above the water distribution inlet 2. The baffle 3 and the surface of the cover body 1 form a water distribution space. At this time, the water distribution inlet 2 is completely located below the water distribution space, that is, from the top view of the water distribution cover, the water distribution inlet 2 is completely covered by the baffle 3. On one side of the water distribution space is an opening formed by the baffle 3 and the surface of the cover body 1, which is the water distribution outlet 4. Water flows from the bottom of the water distribution cover through the water distribution inlet 2, along the first baffle 31 and the second baffle 32, and then flows out from the water distribution outlet 4 on the side.

[0029] In order to better control the water flow, the present embodiment further includes a third baffle 33, which is connected to the second baffle 32, and the other end of the third baffle 33 is arranged toward the cover body 1. At this time, the edge of one end of the third baffle 33 and the surface of the cover body 1 form a water distribution outlet 4, and the third baffle 33 makes the water distribution outlet 4 smaller, and the water flow can be controlled by controlling the size of the third baffle 33. The water flows into the water distribution space from the bottom of the water distribution cover through the water distribution inlet 2, and flows out from the water distribution outlet 4 on the side along the first baffle 31, the second baffle 32, and the third baffle 33.

[0030] There are 8 water distribution inlets 2 evenly distributed on the cover body 1, and the corresponding baffles 3 and water distribution outlets 4 are also 8 in number. Of course, the number of water distribution inlets 2 can also be set to 6 to 12 according to the water distribution requirements. In order to make the water distribution more uniform, the water outlets 4 on the cover body 1 are all arranged in a clockwise direction along the circumference of the cover body 1, and of course, they can also be arranged in a counterclockwise direction along the circumference of the cover body 1.

[0031] In order to increase the reaction space, as shown in this embodiment, the cover body 1 can be changed from a plane shape to an umbrella shape, that is, the surface of the cover body is conical, and the top angle of the cone is the top angle of the umbrella-shaped cover body. According to actual needs, the top angle can be set to 130°-160°, and specifically to 148° in this embodiment.

[0032] The water distribution hood in this embodiment can be used for devices that need to distribute water, and the water flow direction is changed from straight up and down to bottom in and side out by water distribution. When using this embodiment, the surface of the cover body 1 of the water distribution hood is umbrella-shaped, and a certain number of water distribution inlets 2 are opened on the cover body 1. The water flow direction is changed by adding a baffle 3. The water flow must enter the water distribution space through the water distribution inlet 2 and then flow out from the water distribution outlet 4 located on one side. The final water flow distribution mode is bottom in and side out.

[0033] Example 2 A Fenton oxidation tower

[0034] In this embodiment, Figure 4 , Figure 5 As shown, a Fenton oxidation tower comprises a cylinder 5, a cylinder cover 6, a reagent inlet, and a water outlet 10. A water distribution cover in Example 1 is provided at the lower end of the cylinder 5 of the Fenton oxidation tower. The outer peripheral edge of the cover 1 of the water distribution cover is connected to the side wall inside the cylinder 5, that is, the outer circumference of the cover 1 is connected to the side wall of the cylinder 5 of the Fenton oxidation tower, so that the water flow for upward water distribution can only enter the upper area of ​​the water distribution cover through the water distribution inlet 2. A reagent inlet is provided at the lower part of the cylinder 5, and the position of the reagent inlet is lower than the position of the water distribution cover, so that the reagent directly enters the lower part of the water distribution cover through the reagent inlet. The reagent inlet includes a hydrogen peroxide water inlet 7a / b and a ferrous sulfate water inlet 8a / b; a manhole 12a / b is also provided at the lower part of the cylinder 5, wherein 12a is located lower than the water distribution cover, and 12b is located higher than the water distribution cover, so as to facilitate personnel to enter the cylinder 5 for cleaning at different positions; a drain port 11a / b is also provided at the lower part of the cylinder 5, wherein the drain port 11a is located higher than the water distribution cover, and the drain port 11b is located lower than the water distribution cover, and the drain port a / b is used for drainage when cleaning the inside of the cylinder. A water outlet area 9 is provided at the upper part of the cylinder 5, and the water outlet 10 is connected to the water outlet area 9, and the position of the water outlet is higher than the position of the water distribution cover. A sulfuric acid addition port 13, a pH meter installation port 14, and an ORP meter installation port water outlet 15 are provided on the cylinder cover 6, which can monitor and adjust the pH value and OPR value in the cylinder.

[0035] When using this embodiment, the Fenton reagent enters the lower area of ​​the water distribution hood through the hydrogen peroxide inlet 7a / b and the ferrous sulfate inlet 8a / b respectively. The water distribution hood prevents the reagent from directly entering the upper area of ​​the Fenton tower. The reagent undergoes Fenton oxidation reaction below the water distribution hood, which increases its reaction time. The reaction product enters the upper area of ​​the water distribution hood through the bottom inlet and side outlet of the water distribution hood, completes uniform water distribution, and finally enters the water outlet area 9 and is discharged through the outlet 10.

Claims

1. A water distribution cover, comprising a cover body and a baffle, characterized in that: A circle of water distribution inlets are evenly distributed along the circumferential direction on the cover body, and the water distribution inlets are in the shape of long strips of holes, and their length direction is arranged along the radius of the water distribution cover; a baffle is correspondingly arranged on each water distribution inlet, and the baffle includes a first baffle and a second baffle, the first baffle is arranged on one side of a long side of the water distribution inlet and extends in a direction away from the water distribution inlet, and the second baffle is connected to the first baffle and extends in a direction to block the water distribution inlet, so that the first baffle, the second baffle and the surface of the cover body form a water distribution space, and the water distribution inlet is completely located below the water distribution space; the opening on one side of the water distribution space forms a water distribution outlet, and water flows through the water distribution inlet from below and then flows out from the side water distribution outlet along the first baffle and the second baffle.

2. A water distribution cover according to claim 1, characterized in that: The included angle between the first baffle and the cover surface toward the water distribution outlet is 30° to 90°.

3. A water distribution cover according to claim 2, characterized in that: A third baffle extending toward the cover body is provided at one end of the second baffle at the water distribution outlet, and a water distribution outlet is formed between the extended end of the third baffle and the surface of the cover body.

4. The water distribution cover according to claim 1, characterized in that: The water outlets all have water outlets in the same direction along the circumference of the cover body.

5. The water distribution cover according to claim 1, characterized in that: The number of the water distribution inlets is 6 to 12.

6. The water distribution cover according to claim 1, characterized in that: The cover body is umbrella-shaped, and the top angle of the umbrella is 130° to 160°.

7. A Fenton oxidation tower, comprising a cylinder, a cylinder cover, a reagent inlet, and a water outlet, characterized in that: A water distribution hood as described in any one of claims 1 to 6 is provided near the lower end of the cylinder body, and the outer peripheral edge of the water distribution hood is connected to the side wall inside the cylinder body; a reagent inlet is provided near the lower end of the side wall of the cylinder body, and the position of the reagent inlet is lower than the position of the water distribution hood; a water outlet is provided near the upper end of the side wall of the cylinder body, and the position of the water outlet is higher than the position of the water distribution hood.

8. A Fenton oxidation tower according to claim 7, characterized in that: The reagent inlet includes a hydrogen peroxide inlet and a ferrous sulfate inlet.

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