Skimming weir gate structure at tail end of water inlet canal of sedimentation tank

Abstract

The utility model discloses a skimming weir gate structure at the tail end of a water inlet canal of a sedimentation tank, which relates to the technical field of skimming of the water inlet canal of the sedimentation tank and comprises a skimming weir gate structure and the water inlet canal of the sedimentation tank provided with a skimming weir gate, the skimming weir gate structure comprises a water retaining device, and the water retaining device comprises a first flashboard capable of being adjusted up and down, and a skimming overflow device is arranged in the water inlet canal of the sedimentation tank on one side of the water retaining device along the water flow direction. The driving mode of the skimming pipe of the sedimentation tank is improved, existing worm and gear driving is changed into transmission chain driving, the mode that a driving worm is installed underwater to drive a worm gear to drive the skimming pipe is removed, the replacement cost of quick-wear parts is reduced, and the skimming weir gate at the tail end of the water inlet channel is improved, so that the service life of the skimming pipe is prolonged. The hydraulic distribution of the water inlet channel of the sedimentation tank can be improved, and the problems of influence on tank surface impression and manual cleaning cost caused by overflow of scum in the water inlet channel when water inflow is overloaded and floating sludge is too much in winter are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of scum skimming in the inlet channel of a sedimentation tank, in particular to a scum skimming weir gate structure at the end of the inlet channel of a sedimentation tank. Background Art

[0002] Scum skimming in the inlet channel of a sedimentation tank refers to facilities or devices installed in the inlet channel to remove light pollutants such as floating impurities, grease, and scum in the water flow, preventing them from entering the sedimentation tank and affecting the sedimentation effect or causing difficulties in subsequent treatment.

[0003] Currently, the scum skimming technology for the inlet channel generally installs a scum skimming pipe at the end of the inlet channel for scum skimming. During the automatic driving of the scum skimming pipe, the driving method is that a gate motor drives a worm to drive a worm wheel (material QT400 - 15). In daily use, it is soaked underwater and wears quickly. When the water inflow in the inlet channel of the sedimentation tank is overloaded and there is too much floating sludge in winter, it is easy to cause the floating sludge in the inlet channel to accumulate and overflow to the pool surface, increasing manual cleaning.

[0004] As described above, for this reason, we have designed a scum skimming weir gate structure at the end of the inlet channel of a sedimentation tank to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a scum skimming weir gate structure at the end of the inlet channel of a sedimentation tank is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A scum skimming weir gate structure at the end of the inlet channel of a sedimentation tank includes a scum skimming weir gate structure and a sedimentation tank inlet channel where the scum skimming weir gate is installed. The scum skimming weir gate structure includes a water retaining device, and the water retaining device includes a first gate plate that can be adjusted up and down. A scum skimming and overflow device is installed in the sedimentation tank inlet channel on one side along the water flow direction. The scum skimming and overflow device includes a second gate plate that can be adjusted up and down. The height of the first gate plate is higher than that of the second gate plate;

[0008] The scum skimming weir gate structure further includes a scum oil pipe device, and the scum oil pipe device includes a driving component and a scum skimming pipe that is drivingly connected to the driving component;

[0009] The driving component includes a driving motor, a first gear, a second gear, and a transmission chain. The transmission chain is sleeved on the first gear and the second gear, and the first gear is connected to the output end of the driving motor. One side of the center of the second gear is fixedly connected to the scum skimming pipe.

[0010] Preferably, the water retaining device further includes a first motor installed on the outer side of the top of the water inlet channel of the sedimentation tank. The output end of the first motor is connected to a first lead screw, and the bottom of the first lead screw is drivingly connected to the first gate.

[0011] Preferably, the skimming overflow device further includes a second motor installed on the outer side of the top of the water inlet channel of the sedimentation tank. The output end of the second motor is connected to a second lead screw, and the bottom of the second lead screw is drivingly connected to the second gate.

[0012] Preferably, there is a spacing difference between the top of the first gate and the top of the second gate, and the top height of the second gate is lower than the top height of the skimming pipe.

[0013] Preferably, the skimming pipe is provided with a skimming port for skimming.

[0014] Preferably, a capacitive proximity sensor for detecting the rotation angle of the skimming pipe is installed on the skimming pipe.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. Improve the driving mode of the skimming pipe of the sedimentation tank, change the existing worm and worm gear drive to a transmission chain drive, remove the underwater installation of the driving worm to drive the worm gear to drive the skimming pipe, and reduce the replacement cost of vulnerable parts.

[0017] 2. Through the design that there is a spacing difference between the top of the first gate and the top of the second gate, and the top height of the second gate is lower than the top height of the skimming pipe, this height difference design and the positions of the first gate and the second gate can control the flow path and speed of the liquid, ensure that the liquid is distributed as expected in the water inlet channel, and improve the hydraulic distribution of the water inlet channel of the sedimentation tank by modifying the skimming weir gate at the end of the water inlet channel. At the same time, when the water inflow is overloaded and there is too much floating sludge in winter, the floating scum overflow in the water inlet channel can be prevented from affecting the appearance of the pool surface and the manual cleaning cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of a skimming weir gate structure at the end of the water inlet channel of a sedimentation tank proposed by the present utility model;

[0019] Figure 2 FIG. is a side view of the skimming oil pipe device of a skimming weir gate structure at the end of the water inlet channel of a sedimentation tank proposed by the present utility model.

[0020] In the figure: 1 skimming weir gate structure, 2 sedimentation tank water inlet channel, 3 water retaining device, 301 first gate, 302 first lead screw, 4 skimming overflow device, 401 second gate, 402 second lead screw, 5 skimming oil pipe device, 6 driving component, 601 driving motor, 602 gear one, 603 gear two, 604 transmission chain, 7 skimming pipe. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Refer to Figure 1-2 , a skimming weir gate at the end of the inlet channel of a sedimentation tank, including a skimming weir gate structure 1 and a sedimentation tank inlet channel 2 where the skimming weir gate is installed. The skimming weir gate structure 1 includes a water retaining device 3, and the water retaining device 3 includes a first gate plate 301 that can be adjusted up and down. A skimming overflow device 4 is installed in the sedimentation tank inlet channel 2 on one side of the water retaining device 3 along the water flow direction. The skimming overflow device 4 includes a second gate plate 401 that can be adjusted up and down. The height of the first gate plate 301 is higher than the height of the second gate plate 401;

[0023] The skimming weir gate structure 1 further includes a skimming oil pipe device 5. The skimming oil pipe device 5 includes a driving component 6 and a skimming pipe 7 that is drivingly connected to the driving component 6. The skimming pipe 7 is usually used to discharge floating objects or impurities on the liquid surface;

[0024] A skimming port for skimming is provided on the skimming pipe 7. A capacitive proximity sensor for detecting the rotation angle of the skimming pipe 7 is installed on the skimming pipe 7. The capacitive proximity sensor is a sensor based on the principle of capacitance change, used to detect the presence or movement of an object. Its working principle is to judge the movement and rotation angle of the object by the capacitance change between the electrode and the skimming pipe 7 to be detected;

[0025] Among them, there is a spacing difference between the top of the first gate plate 301 and the top of the second gate plate 401, and the top height of the second gate plate 401 is lower than the top height of the skimming pipe 7;

[0026] More specifically, the water retaining device 3 further includes a first motor installed outside the top of the sedimentation tank inlet channel 2. The output end of the first motor is connected to a first lead screw 302, and the bottom of the first lead screw 302 is drivingly connected to the first gate plate 301; the skimming overflow device 4 further includes a second motor installed outside the top of the sedimentation tank inlet channel 2. The output end of the second motor is connected to a second lead screw 402, and the bottom of the second lead screw 402 is drivingly connected to the second gate plate 401.

[0027] In this embodiment, the first gate plate 301 and the second gate plate 401 are used to control the liquid flow or adjust the flow rate. Their positions and height differences determine how the liquid is distributed in the inlet channel.

[0028] Among them, the function of the height difference between the first gate plate 301, the second gate plate 401, and the skimming pipe 7: The top of the first gate plate 301 is higher than that of the second gate plate 401, which causes the liquid to encounter a lower obstacle at the second gate plate 401 after flowing through the first gate plate 301, thereby possibly resulting in changes in flow velocity or flow direction distribution.

[0029] At the same time, the top height of the skimming pipe 7 is higher than that of the second gate plate 401, which means that the liquid will first be blocked by the second gate plate 401 before reaching the skimming pipe 7, thus ensuring that only the liquid above a specific height, usually the surface liquid, can enter the skimming pipe 7.

[0030] Through the above design, the height difference and the positions of the first gate plate 301 and the second gate plate 401 can control the flow path and velocity of the liquid, ensuring that the liquid is distributed in the inlet channel as expected. By this way of transforming the skimming weir gate at the end of the inlet channel, it is possible to improve the hydraulic distribution of the inlet channel of the sedimentation tank, and at the same time solve the problems of overloaded water inflow and excessive floating sludge in winter, where the floating scum overflows in the inlet channel, affecting the appearance of the tank surface and the cost of manual cleaning.

[0031] For example, in some cases, it may be desired to discharge the surface liquid through the skimming pipe 7, while the deeper liquid continues to flow through other channels.

[0032] The driving assembly 6 includes a driving motor 601, a first gear 602, a second gear 603, and a transmission chain 604. The transmission chain 604 is sleeved on the first gear 602 and the second gear 603, and the first gear 602 is connected to the output end of the driving motor 601, and one side of the center of the second gear 603 is fixedly connected to the skimming pipe 7.

[0033] In this embodiment, the driving method of the skimming pipe 7 of the sedimentation tank is improved by changing the existing worm and worm gear drive to a transmission chain 604 drive, removing the underwater installation of the driving worm to drive the worm gear to drive the skimming pipe 7, and reducing the cost of replacing vulnerable parts.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0036] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and all such changes and improvements fall within the scope of the present utility model claimed. The scope of the present utility model claimed is defined by the appended claims and their equivalents.

Claims

1. A scum-removing weir gate structure at the end of the inlet channel of a sedimentation tank, comprising a scum-removing weir gate structure (1) and a sedimentation tank inlet channel (2) for installing the scum-removing weir gate, characterized in that, The scum weir gate structure (1) includes a water retaining device (3), the water retaining device (3) includes a first gate plate (301) that can be adjusted up and down, and a scum overflow device (4) is installed in the sedimentation tank inlet channel (2) on one side of the water retaining device (3) along the water flow direction. The scum overflow device (4) includes a second gate plate (401) that can be adjusted up and down, and the height of the first gate plate (301) is higher than that of the second gate plate (401). The scum weir gate structure (1) further includes a scum oil pipe device (5), and the scum oil pipe device (5) includes a driving component (6) and a scum pipe (7) that is drivingly connected to the driving component (6). The driving component (6) includes a driving motor (601), a first gear (602), a second gear (603), and a transmission chain (604). The transmission chain (604) is sleeved on the first gear (602) and the second gear (603), and the first gear (602) is connected to the output end of the driving motor (601), and one side of the center of the second gear (603) is fixedly connected to the scum pipe (7).

2. The structure of the scum weir gate at the end of the inlet channel of the sedimentation tank according to claim 1, characterized in that, The water retaining device (3) further includes a first motor installed outside the top of the sedimentation tank inlet channel (2), and the output end of the first motor is connected to a first lead screw (302), and the bottom of the first lead screw (302) is drivingly connected to the first gate plate (301).

3. The structure of the scum weir gate at the end of the inlet channel of the sedimentation tank according to claim 1, characterized in that, The scum overflow device (4) further includes a second motor installed outside the top of the sedimentation tank inlet channel (2), and the output end of the second motor is connected to a second lead screw (402), and the bottom of the second lead screw (402) is drivingly connected to the second gate plate (401).

4. The structure of the scum weir gate at the end of the inlet channel of the sedimentation tank according to claim 1, characterized in that, There is a spacing difference between the top of the first gate plate (301) and the top of the second gate plate (401), and the top height of the second gate plate (401) is lower than the top height of the scum pipe (7).

5. The structure of the scum skimming weir gate at the end of the inlet channel of the sedimentation tank according to claim 1, characterized in that, The scum pipe (7) is provided with a scum port for skimming scum.

6. The scum weir gate structure at the end of the inlet channel of the sedimentation tank according to claim 1, characterized in that A capacitive proximity sensor for detecting the rotation angle of the scum pipe (7) is installed on the scum pipe (7).

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