Water distribution assembly and biochemical water treatment equipment

Abstract

This application discloses a water distribution assembly and a biochemical water treatment device. The water distribution assembly includes a water distribution hood, a water distribution weir, and multiple water distribution pipes. The water distribution hood is rotatably fitted onto the outside of the outlet end of the inlet pipe. Multiple water distribution outlets are arranged circumferentially on the sidewall of the water distribution hood. The water distribution weir is located inside the water distribution hood and can move up and down relative to the hood along its height. Multiple weir openings, corresponding one-to-one with the multiple water distribution outlets, are arranged circumferentially on the sidewall of the water distribution weir. The multiple water distribution pipes are respectively connected to the corresponding multiple water distribution outlets, and multiple water distribution holes are spaced apart on the sidewall of each water distribution pipe. The water distribution assembly of this application utilizes the reaction force of the water exiting the water distribution holes and the combined force of the water distribution weir on each water distribution pipe to drive the water distribution pipes to rotate and distribute water. This achieves rotary water distribution without the need for a power device, resulting in uniform water distribution, a simple structure, low operating costs, and strong adaptability.

Description

Technical Field

[0001] This application relates to the field of recirculating aquaculture technology, and in particular to a water distribution component and a biochemical water treatment device. Background Technology

[0002] Circular biological reactors typically employ either bottom-in, top-out or top-in, bottom-out water flow methods. Therefore, it is necessary to distribute water evenly across the entire water flow surface of the circular biological reactor. The uniformity of the water distribution method will directly affect the biochemical treatment effect of the circular biological reactor.

[0003] In circular biological reactors, traditional water distribution methods often employ fixed spray pipes or rotating water distributors. Fixed spray pipes are prone to clogging and uneven distribution, while traditional rotating water distributors require motor drive, resulting in high energy consumption, complex structure, and the degree and uniformity of rotation being greatly affected by flow rate. Utility Model Content

[0004] Therefore, it is necessary to provide a water distribution component and a biochemical water treatment device that features uniform water distribution, simple structure, and low operating cost.

[0005] A water distribution assembly, comprising:

[0006] A water distribution cover is used to rotate and be fitted on the outside of the water outlet end of the water inlet pipe. The side wall of the water distribution cover is provided with multiple water outlets along the circumference.

[0007] A water distribution weir, disposed within the water distribution hood, is movable vertically relative to the water distribution hood along its height. The sidewall of the weir is provided with multiple weir openings corresponding one-to-one with the multiple water distribution outlets.

[0008] Multiple water distribution pipes are connected to corresponding multiple water outlets, and each water distribution pipe has multiple water distribution holes spaced apart on its side wall.

[0009] In one embodiment, the water distribution assembly further includes a connector, one end of which is connected to the outlet end of the water inlet pipe, and the other end of which is rotatably connected to the water distribution cover.

[0010] In one embodiment, the connector, the water distribution weir, and the water distribution cover are coaxially arranged, the water distribution cover is rotatably sleeved on the outside of the top end of the connector, and the bottom end of the connector is fixedly sleeved on the outside of the outlet end of the inlet pipe.

[0011] In one embodiment, the water distribution assembly further includes an adjusting member threadedly connected inside the water distribution hood and used to abut the top of the water distribution weir; by rotating the adjusting member, the position of the adjusting member in the height direction of the water distribution hood can be adjusted, thereby adjusting the position of the water distribution weir in the height direction of the water distribution hood.

[0012] In one embodiment, the multiple water distribution pipes are symmetrically distributed around the axis of the water distribution hood.

[0013] In one embodiment, each of the water distribution pipes has a plurality of water distribution holes evenly spaced along the length of the water distribution pipe on the same side.

[0014] In one embodiment, a plug is provided at the end of the water distribution pipe away from the water inlet; and / or

[0015] The top of the water distribution hood has an opening, and the water distribution assembly further includes a snap-on cover disposed at the opening to open or close the opening; and / or

[0016] The water distribution cover includes a small diameter section and a large diameter section connected sequentially from top to bottom. The diameter of the small diameter section is smaller than the diameter of the large diameter section. The small diameter section and the large diameter section are coaxially arranged. The large diameter section is rotatably sleeved on the outside of the water outlet end of the water inlet pipe body. Multiple water distribution ports are arranged circumferentially on the large diameter section. The water distribution weir is located inside the large diameter section.

[0017] A biochemical water treatment device includes the aforementioned water distribution components.

[0018] In one embodiment, the biochemical water treatment equipment further includes a reaction tank, a packing assembly, and an aeration assembly. The packing assembly and the aeration assembly are both disposed in the reaction tank, with the aeration assembly located below the packing assembly. The water distribution assembly extends into the reaction tank and is located above the packing assembly.

[0019] In one embodiment, the biochemical water treatment equipment further includes a drain pipe disposed at the bottom end of the reaction tank.

[0020] In operation, the wastewater from the outlet of the inlet pipe flows into the distribution hood. Then, under the water distribution weir, the wastewater flows into the distribution pipe through the weir opening and the distribution port of the distribution hood, and finally sprays out through the distribution holes on the distribution pipe. The reaction force of the water outlet and the water distribution force of the weir on each distribution pipe drive the distribution pipe and the distribution hood connected to the distribution pipe to rotate relative to the inlet pipe, so as to achieve uniform rotational water distribution. Therefore, the water distribution component of this application uses the combined force of the reaction force of the water outlet and the water distribution force of the weir on each distribution pipe to drive the distribution pipe to rotate and distribute water, thereby completing the rotational water distribution without the need for a power device. The water distribution is uniform, the structure is simple, the operating cost is low, and the adaptability is strong. It is especially suitable for water distribution in various circular reaction tanks. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the water distribution assembly in one embodiment;

[0023] Figure 2 for Figure 1 A cross-sectional view of a partial structure of the water distribution assembly shown;

[0024] Figure 3 for Figure 1 A partial structural schematic diagram of the water distribution assembly shown;

[0025] Figure 4 for Figure 1 A cross-sectional view of a partial structure of the water distribution assembly shown from another perspective;

[0026] Figure 5 This is a schematic diagram of the structure of a biochemical water treatment device in one embodiment;

[0027] Figure 6 for Figure 5 The diagram shows a cross-sectional view of the biochemical water treatment equipment. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] like Figures 1 to 3 As shown, this application provides a water distribution assembly 510, which includes a water distribution cover 512, a water distribution weir 513, and multiple water distribution pipes 514. The water distribution cover 512 is rotatably sleeved on the outside of the outlet end of the inlet pipe body 520. The side wall of the water distribution cover 512 is provided with multiple water distribution ports 5121 along the circumferential direction. The water distribution weir 513 is disposed inside the water distribution cover 512 and can move up and down relative to the water distribution cover 512 along the height direction of the water distribution cover 512. The side wall of the water distribution weir 513 is provided with multiple weir openings 5131 that correspond one-to-one with the multiple water distribution ports 5121. The multiple water distribution pipes 514 are respectively connected to the corresponding multiple water distribution ports 5121. The side wall of each water distribution pipe 514 is provided with multiple water distribution holes 5141 that are spaced apart.

[0032] When the aforementioned water distribution assembly 510 is in operation, the sewage output from the outlet end of the inlet pipe 520 flows into the water distribution hood 512. Then, under the water distribution action of the water distribution weir 513, it flows sequentially through the weir opening 5131 of the water distribution weir 513 and the water distribution port 5121 of the water distribution hood 512 into the water distribution pipe 514, and finally sprays out through the water distribution hole 5141 on the water distribution pipe 514. Under the reaction force of the water exiting the water distribution hole 5141 and the water distribution force of the water distribution weir 513 on each water distribution pipe 514, the water distribution pipe 514 and the water distribution pipes are driven to move. The water distribution cover 512 connected to 514 rotates relative to the inlet pipe body 520 to achieve uniform rotational water distribution of the water distribution assembly 510. Therefore, the water distribution assembly 510 of this application uses the reaction force of the water outlet 5141 and the combined force of the water distribution weir 513 on each water distribution pipe 514 to drive the water distribution pipe 514 to rotate and distribute water, thereby completing the rotational water distribution without the need for a power device. The water distribution is uniform, the structure is simple, the operating cost is low, and the adaptability is strong. It is especially suitable for water distribution in various circular reaction tanks.

[0033] It is understandable that the water distribution weir 513 can move up and down relative to the water distribution cover 512 along the height direction of the water distribution cover 512 by its own buoyancy in the water body inside the water distribution cover 512, or it can be moved up and down relative to the water distribution cover 512 along the height direction of the water distribution cover 512 by external components connected to the water distribution weir 513. There is no single limitation here.

[0034] like Figure 2 and Figure 4 As shown, in one embodiment, the water distribution assembly 510 further includes a connector 511, one end of which is connected to the outlet end of the water inlet pipe, and the other end of which is rotatably connected to the water distribution cover 512.

[0035] Specifically, when the water distribution assembly 510 is working, the sewage output from the outlet end of the inlet pipe 520 flows into the water distribution cover 512 through the connector 511. Then, under the water distribution action of the water distribution weir 513, it flows sequentially through the weir opening 5131 of the water distribution weir 513 and the water distribution port 5121 of the water distribution cover 512 into the water distribution pipe 514, and finally sprays out through the water distribution hole 5141 on the water distribution pipe 514. Under the reaction force of the water exiting the water distribution hole 5141 and the water distribution force of the water distribution weir 513 on each water distribution pipe 514, the water distribution pipe 514 and the water distribution cover 512 connected to the water distribution pipe 514 rotate relative to the connector 511, so as to achieve uniform rotational water distribution of the water distribution assembly 510. Figure 2 and Figure 4As shown, in this embodiment, the connector 511, the water distribution weir 513, and the water distribution cover 512 are coaxially arranged. The water distribution cover 512 is rotatably sleeved on the outside of the top end of the connector 511, and the bottom end of the connector 511 is fixedly sleeved on the outside of the outlet end of the inlet pipe body 520. Specifically, the bottom end of the connector 511 and the outlet end of the inlet pipe body 520 are fixedly connected by an interference fit.

[0036] Understandably, due to the influence of gravity on water flow, if water enters the inlet pipe 520 from the top of the connector 511, it cannot be guaranteed that the inlet pipe 520 will be full of water, which will cause uneven water output from the various weirs 5131 of the distribution weir 513. Therefore, the bottom end of the connector 511 is fixedly connected to the outlet end of the inlet pipe 520, that is, water enters from the bottom end of the connector 511, so that the sewage output from the inlet pipe 520 can be evenly distributed through the multiple weirs 5131 in the circumferential direction of the distribution weir 513, ensuring that the water output from the distribution weir 513 is the same in all directions, thereby ensuring that the water output delivered to each distribution pipe 514 is uniform. Only when the water volume of each distribution pipe 514 is uniform can the entire water distribution assembly 510 be guaranteed to rotate in a balanced and uniform manner.

[0037] Specifically, in this embodiment, the water distribution weir 513 is in the shape of a frustum, and multiple weir openings 5131 are evenly spaced on the circumference of the water distribution weir 513, and multiple water distribution outlets 5121 are evenly spaced on the circumference of the water distribution cover 512.

[0038] like Figure 2 and Figure 4 As shown, the water distribution cover 512 further includes a small diameter portion 5122 and a large diameter portion 5123 connected sequentially from top to bottom. The diameter of the small diameter portion 5122 is smaller than the diameter of the large diameter portion 5123. The small diameter portion 5122 and the large diameter portion 5123 are coaxially arranged. The large diameter portion 5123 is rotatably sleeved on the outside of the outlet end of the water inlet pipe body 520. Specifically, the large diameter portion 5123 is rotatably sleeved on the outside of the connector 511. Multiple water distribution ports 5121 are arranged circumferentially on the large diameter portion 5123. The water distribution weir 513 is located inside the large diameter portion 5123.

[0039] like Figure 1 As shown, in one embodiment, to improve the uniformity of water distribution in the water distribution assembly 510, multiple water distribution pipes 514 are symmetrically distributed around the axis of the water distribution cover 512, and the multiple water distribution pipes 514 are radially and evenly distributed on the outer periphery of the water distribution cover 512. Figure 3 As shown, in one embodiment, in order to improve the water distribution uniformity of the water distribution assembly 510, a plurality of water distribution holes 5141 are evenly spaced along the length direction of the water distribution pipe 514 on the same side. Specifically, a plurality of water distribution holes 5141 are evenly spaced along the length direction of the water distribution pipe 514 on the bottom side of the water distribution pipe 514.

[0040] like Figure 1 As shown, in one embodiment, a plug 5142 is provided at the end of the water distribution pipe 514 away from the water outlet 5121. Figure 2 and Figure 4 As shown, in one embodiment, to facilitate adjustment of the height of the water distribution weir 513 to an optimal height corresponding to the water distribution state, the top of the water distribution cover 512 has an opening. Specifically, the top of the small diameter portion 5122 has an opening. The water distribution assembly 510 also includes a cover 515, which is disposed at the opening to open or close the opening. In one embodiment, the top of the cover 515 is also provided with a tool hole 5152 for easy removal of the cover 515. This tool hole 5152 can be, but is not limited to, a cross-shaped hole.

[0041] like Figure 2 and Figure 4 As shown, in one embodiment, the water distribution assembly 510 further includes an adjusting member 516, which is threadedly connected to the water distribution cover 512 and is used to abut the top of the water distribution weir 513. By rotating the adjusting member 516, the position of the adjusting member 516 in the height direction of the water distribution cover 512 can be adjusted, thereby adjusting the position of the water distribution weir 513 in the height direction of the water distribution cover 512.

[0042] Specifically, since the adjusting member 516 is threadedly connected inside the water distribution cover 512, rotating the adjusting member 516 can drive the adjusting member 516 to move axially relative to the water distribution cover 512, thereby adjusting the position of the adjusting member 516 in the height direction of the water distribution cover 512. Since the adjusting member 516 can abut against the top of the water distribution weir 513, when the position of the adjusting member 516 in the height direction of the water distribution cover 512 changes, the water distribution weir 513 can adaptively adjust to the height position corresponding to the adjusting member 516 under its own buoyancy and the limiting action of the adjusting member 516 (or when the adjusting member 516 is connected to the top of the water distribution weir 513, the water distribution weir 513 is directly driven by the adjusting member 516), so as to adjust the water distribution weir 513 to the height position corresponding to the optimal water distribution state.

[0043] In this embodiment, the adjusting member 516 may be, but is not limited to, a screw. A support platform 5124 is formed inside the water distribution cover 512. The adjusting member 516 passes through the support platform 5124 and is threadedly connected to the support platform 5124. One end of the adjusting member 516 is used to abut the top of the water distribution weir 513. Specifically, a support platform 5124 is formed inside the small diameter portion 5122. One end of the adjusting member 516 is located inside the small diameter portion 5122, and the other end of the adjusting member 516 extends into the large diameter portion 5123.

[0044] like Figure 5 and Figure 6As shown, this application also provides a biochemical water treatment device 500, which includes the above-mentioned water distribution component 510.

[0045] In one embodiment, the biochemical water treatment equipment 500 further includes a reaction tank 530, a packing assembly 540, and an aeration assembly 550. The packing assembly 540 and the aeration assembly 550 are both disposed in the reaction tank 530, and the aeration assembly 550 is located below the packing assembly 540. The water distribution assembly 510 extends into the reaction tank 530 and is located above the packing assembly 540.

[0046] Specifically, the reaction tank 530 is preferably a circular reaction tank, and the packing assembly 540 is used for the attachment and growth of microorganisms. The microorganisms are used to biochemically treat the wastewater in the reaction tank 530. Preferably, the packing material in the packing assembly 540 is arranged at a high density to provide sufficient space for the attachment and growth of microorganisms. The aeration assembly 550 is used to oxygenate the wastewater in the reaction tank 530 to provide oxygen for the microorganisms to decompose pollutants in the wastewater. The aeration assembly 550 may include any one of an aeration disc and a micro / nano aeration module.

[0047] like Figure 5 As shown, in one embodiment, the biochemical water treatment equipment 500 further includes a drain pipe 560, which is disposed at the bottom end of the reaction tank 530. The drain pipe 560 is used to discharge the wastewater in the reaction tank 530 after biochemical treatment by the packing assembly 540. Specifically, the outlet end of the inlet pipe 520 extends to the top of the reaction tank 530, the water distribution assembly 510 is located at the top of the reaction tank 530, and the drain pipe 560 is disposed at the bottom end of the reaction tank 530. That is, the biochemical water treatment equipment 500 of this application adopts a top-inlet and bottom-outlet water flow method.

[0048] like Figure 6 As shown, in one embodiment, a filter structure 570 is provided at the connection between the drain pipe 560 and the reaction tank 530. The filter structure 570 may include, but is not limited to, a bar screen. The filter structure 570 is used to filter the wastewater after the biochemical treatment by the packing assembly 540 before discharge, so as to remove sludge from the effluent. This not only improves the quality of the effluent, but also avoids the blockage of the drain pipe 560 caused by excessive sludge concentration in the effluent.

[0049] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A water distribution assembly, characterized in that, include: A water distribution cover is used to rotate and be fitted on the outside of the water outlet end of the water inlet pipe. The side wall of the water distribution cover is provided with multiple water outlets along the circumference. A water distribution weir is set inside the water distribution hood and can move up and down relative to the water distribution hood along the height direction of the water distribution hood. The side wall of the water distribution weir is provided with multiple weir openings that correspond one-to-one with the multiple water distribution outlets. as well as Multiple water distribution pipes are connected to corresponding multiple water outlets, and each water distribution pipe has multiple water distribution holes spaced apart on its side wall.

2. The water distribution assembly according to claim 1, characterized in that, The water distribution assembly also includes a connector, one end of which is connected to the outlet end of the water inlet pipe, and the other end of which is rotatably connected to the water distribution cover.

3. The water distribution assembly according to claim 2, characterized in that, The connector, the water distribution weir, and the water distribution cover are coaxially arranged. The water distribution cover is rotatably sleeved on the outside of the top end of the connector, and the bottom end of the connector is fixedly sleeved on the outside of the outlet end of the inlet pipe.

4. The water distribution assembly according to claim 1, characterized in that, The water distribution assembly also includes an adjusting member, which is threadedly connected inside the water distribution hood and used to abut the top of the water distribution weir. By rotating the adjusting member, the position of the adjusting member in the height direction of the water distribution hood can be adjusted, thereby adjusting the position of the water distribution weir in the height direction of the water distribution hood.

5. The water distribution assembly according to claim 1, characterized in that, The multiple water distribution pipes are symmetrically distributed around the axis of the water distribution hood.

6. The water distribution assembly according to claim 5, characterized in that, Each of the water distribution pipes has multiple water distribution holes evenly spaced along its length on the same side.

7. The water distribution assembly according to claim 1, characterized in that, A plug is provided at the end of the water distribution pipe away from the water inlet; and / or The top of the water distribution hood has an opening, and the water distribution assembly further includes a snap-on cover disposed at the opening to open or close the opening; and / or The water distribution cover includes a small diameter section and a large diameter section connected sequentially from top to bottom. The diameter of the small diameter section is smaller than the diameter of the large diameter section. The small diameter section and the large diameter section are coaxially arranged. The large diameter section is rotatably sleeved on the outside of the water outlet end of the water inlet pipe body. Multiple water distribution ports are arranged circumferentially on the large diameter section. The water distribution weir is located inside the large diameter section.

8. A biochemical water treatment device, characterized in that, Includes the water distribution assembly as described in any one of claims 1 to 7.

9. The biochemical water treatment equipment according to claim 8, characterized in that, The biochemical water treatment equipment also includes a reaction tank, a packing assembly, and an aeration assembly. The packing assembly and the aeration assembly are both located in the reaction tank, with the aeration assembly located below the packing assembly. The water distribution assembly extends into the reaction tank and is located above the packing assembly.

10. The biochemical water treatment equipment according to claim 9, characterized in that, The biochemical water treatment equipment also includes a drain pipe, which is located at the bottom of the reaction tank.

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