Variable cross-section water inlet canal water distribution system of circular sedimentation tank

Abstract

The utility model discloses a variable-cross-section water inlet channel water distribution system of a circular sedimentation tank. The variable-cross-section water inlet channel water distribution system comprises a sedimentation tank, a water outlet channel and a water inlet channel, the sedimentation tank is a circular sedimentation tank; an annular channel is arranged on the periphery of the circular sedimentation tank, a partition wall is arranged in the middle of the annular channel, a water outlet channel and a water inlet channel are formed on the inner side and the outer side of the partition wall relative to the center of the circular sedimentation tank respectively, and the radius of the partition wall relative to the center of a circular tank body becomes larger, so that the width of the water inlet channel on the outer side of the partition wall becomes smaller. The bottom of the water inlet channel is provided with a plurality of water distribution holes which are used for communicating the water inlet channel with the internal space of the circular sedimentation tank body. According to the variable-cross-section water inlet channel water distribution system of the circular sedimentation tank, the flow speed and the flow are controlled through the variable cross section of the water inlet channel, the water distribution holes and the hole distance, and uniform water distribution is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary devices for sewage treatment equipment, and specifically relates to a water distribution system for a variable cross-section inlet channel of a circular sedimentation tank. Background Technology

[0002] The original secondary sedimentation tank had a central water inlet, which resulted in a semi-circular water flow trajectory. The space at the center of the circle could not be fully utilized, leading to uneven water distribution. Utility Model Content

[0003] The purpose of this invention is to provide a variable cross-section inlet channel water distribution system for a circular sedimentation tank, so as to achieve uniform water distribution along the circumference and make the water in the tank settle evenly.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A circular sedimentation tank variable cross-section inlet channel water distribution system includes a sedimentation tank, an outlet channel and an inlet channel;

[0006] The sedimentation tank is a circular sedimentation tank; an annular channel is set around the perimeter of the circular sedimentation tank, and a partition wall is set in the middle of the annular channel, forming an outlet channel and an inlet channel on the inner and outer sides of the partition wall relative to the center of the circular sedimentation tank, respectively. The radius of the partition wall relative to the center of the circular tank increases from small to large, causing the width of the inlet channel on the outer side of the partition wall to decrease from large to small, realizing a variable cross-section annular inlet channel. The bottom of the inlet channel is provided with multiple water distribution holes for connecting the inlet channel to the internal space of the circular sedimentation tank.

[0007] Each of the water distribution holes has a horizontal baffle A installed on the pool wall below it to eliminate jets and swirls.

[0008] Among them, an annular baffle B is provided at the lower end of the annular channel near the center of the circular sedimentation tank to reduce the agitation of the incoming water on the clear water zone.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The circular sedimentation tank variable cross-section inlet channel water distribution system provided in this application utilizes the variable cross-section of the inlet channel, water distribution holes and hole spacing to control the flow velocity and flow rate to achieve uniform water distribution. Attached Figure Description

[0011] Figure 1 The figure shown is a top view of the water distribution system provided in an embodiment of this application.

[0012] Figure 2 The figure shown is a side view of the water distribution system provided in an embodiment of this application.

[0013] In the diagram, there is a sedimentation tank (1), an outlet channel (2), an inlet channel (3), and a water distribution hole (4). Detailed Implementation

[0014] 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.

[0015] In the description of this utility model, 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 of this utility model.

[0016] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0017] Please see Figures 1-2 The diagram shows the structure of an embodiment provided by this utility model.

[0018] This embodiment provides a circular sedimentation tank variable cross-section inlet channel water distribution system, including a sedimentation tank (1), an outlet channel (2) and an inlet channel (3);

[0019] The sedimentation tank (1) is a circular sedimentation tank; an annular channel is provided around the circular sedimentation tank, and a partition wall is provided in the middle of the annular channel, forming an outlet channel (2) and an inlet channel (3) on the inner and outer sides of the partition wall relative to the center of the circular sedimentation tank, respectively. The radius of the partition wall relative to the center of the circular tank increases from small to large, causing the width of the inlet channel (3) on the outer side of the partition wall to decrease from large to small, thus realizing a variable cross-section annular inlet channel. The bottom of the inlet channel (3) is provided with multiple water distribution holes (4) for connecting the inlet channel with the internal space of the circular sedimentation tank.

[0020] Preferably, a horizontal baffle A is provided on the pool wall below each of the water distribution holes (4) to eliminate jets and swirls.

[0021] It should be noted that baffle A is placed below the water distribution pipe, which can eliminate jetting and swirling, ensuring that the water flow is rapid and completely dispersed.

[0022] Preferably, an annular baffle B is provided at the lower end of the annular channel near the center of the circular sedimentation tank to reduce the agitation of the incoming water on the clear water zone.

[0023] It should be noted that the baffle B extends 1.5m below the water surface, enabling the water to flow directly into the water distribution area. The water is evenly distributed along the perimeter and also acts as a flocculation zone. At maximum flow rate, the flow velocity is controlled below 1.5m / min, reducing the agitation of the incoming water on the clear water zone.

[0024] The inlet channel and the water inlet channel described in this utility model are made of reinforced concrete or steel and are shaped as a ring channel located around the perimeter of a circular sedimentation tank. A partition wall is set in the middle of the channel. The inner and outer sides of the partition wall relative to the center of the circular sedimentation tank are respectively the outlet channel and the inlet channel. The radius of the partition wall relative to the center of the circular tank increases from small to large, causing the width of the inlet channel on the outer side of the partition wall to decrease from large to small, thereby realizing a variable cross-section ring inlet channel. The inlet channel contains water distribution holes; the water distribution holes are several circular holes set at the bottom of the inlet channel; the water distribution holes connect the inlet channel to the internal space of the circular sedimentation tank.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A circular sedimentation tank variable cross-section inlet channel water distribution system, characterized in that, It comprises a sedimentation tank (1), an outlet channel (2) and an inlet channel (3); The sedimentation tank (1) is a circular one; an annular channel is arranged at the periphery of the circular sedimentation tank; a partition wall is arranged in the middle of the annular channel, forming an outlet channel (2) and an inlet channel (3) on the inner side and the outer side of the partition wall relative to the center of the circular sedimentation tank respectively; the radius of the partition wall relative to the center of the circular tank body changes from small to large, so that the width of the inlet channel (3) on the outer side of the partition wall changes from large to small, realizing a variable cross-section annular inlet channel; a plurality of water distribution holes (4) for connecting the inlet channel with the internal space of the circular sedimentation tank body are arranged on the channel bottom of the inlet channel (3).

2. The variable cross-section inlet channel water distribution system of a circular sedimentation tank according to claim 1, characterized in that, A transverse baffle A for eliminating jet and cyclone is arranged on the tank wall below each water distribution hole (4).

3. The variable cross-section inlet channel water distribution system of a circular sedimentation tank according to claim 1, characterized in that, An annular baffle B for reducing the stirring of the inlet water to the clear water area is arranged at the position close to the center of the circular sedimentation tank at the lower end of the annular channel.

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