JPS6274415A - Float type water intake apparatus - Google Patents

Abstract

PURPOSE:To always efficiently take-in supernatant water, by providing a drain pipe, a guide pipe and a float in a water tank and providing a flooding weir and a flooding trough to the float while providing a bellows type water passing pipe following the movement of the float in the guide pipe. CONSTITUTION:Water 2 to be treated supplied into a water tank 1 receives solid-liquid separation treatment and supernatant water is guided to a flooding trough 16 through a buffle plate 17 and a flooding weir 15. When the water level of water 2 to be treated varies, a float 7 is lifted and fallen while guided by a guide pie 3 and the flooding weir 15 is always set to a proper position with respect to the surface of water and a bellows type water passing pipe 19 extends and contracts corresponding to variation while the water in the flooding trough 16 is surely guided to a drain pipe 6 regardless of the lifting and falling of the float 7 and supernatant water can always be taken-in a stable state.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a floating water intake device used in water treatment equipment.

Conventional technology - Mizudokoro J! I! Solid-liquid separation is performed by sedimentation concentration in sedimentation ponds, concentration tanks, etc. in equipment. The resulting supernatant water is conventionally discharged from an overflow weir fixed at a predetermined height.

Problems to be Solved by the Invention However, with a fixed overflow weir as described above, there is a problem in that if the water level of the supernatant water fluctuates rapidly, it becomes impossible to carry out continuous and efficient sedimentation and separation.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and to allow efficient sedimentation and separation by overflowing the supernatant water without any hindrance even if the water level fluctuates.

Means for Solving the Problems The above-mentioned problem is solved by installing a drain pipe and a pair of guide pipes in the vertical direction in the water tank, and by changing the water level in the tank, the pair of guide pipes are installed in the tank. A float that moves up and down along the pipe is provided, and the float is provided with an overflow layer through which the supernatant water in the aquarium overflows, and an overflow trough that receives the supernatant water that has exceeded the overflow layer, and 11. The guide pipe is provided with a bellows-type water pipe that communicates with the overflow trough and the drain pipe and expands and contracts as the float falls.

If the action is as follows, the float will be guided by the guide pipe and rise in response to fluctuations in the water level in the tank. J
Therefore, the overflow layer provided on this float can always be set at an appropriate height regardless of fluctuations in water level. In addition, due to the action of the bellows-type water pipe, the supernatant water in the overflow trough can be reliably guided to the drain pipe regardless of whether the float is raised or lowered.

Furthermore, since the bellows-type water pipe is provided within the guide pipe, the overall configuration of the device can be made compact.

Example Hereinafter, one embodiment of Komei Ki will be described based on the drawings.

In Figures 1 and 2, 1 is the water speed Il! This is the water tank J3 in the equipment, and the water to be treated 2 is supplied. A pair of guide pipes 3 are provided in the water tank 1, and the upper and lower portions of the guide pipes 3 are vertically supported by brackets 4.5 projecting from the wall of the water tank 1. Further, inside the water tank 1, a drain pipe 6 is provided which faces the lower end opening of the guide pipe 3 and which is guided to the outside of the water tank 1.

Reference numeral 7 denotes a float, which is constructed so that the pair of guide pipes 3 pass through the float, and is made to fall along the guide pipes 3 as the water level of the protected Jψ water 2 changes. The interior of the float 7 is divided into a plurality of air tanks 8 and buoyancy adjustment tanks 9. Water inlet 10 provided in each buoyancy adjustment tank 9 is used to increase or decrease the suspension of water in the tank 9. This allows the draft of the float 7 to be adjusted.

An upper limit stopper 11 for regulating the upper limit position of the float 7 is provided on the upper part of the guide pipe 3, and a similar lower limit stopper 12 is provided on the bracket 5. In addition, the float 7 has contact points J to each stopper 11 and 12.
-Abutting member 13.1. i is provided.

An overflow trough 16 having a perforated plate-shaped overflow 11ii15 is provided around the float 7, and the supernatant water in the water tank 1 can be introduced into the overflow trough 16. A baffle plate 17 is installed to prevent scum floating on the water surface from flowing into the overflow trough 16. Reference numeral 18 denotes a water collection pipe, which is composed of a single-shaped pipe for guiding water in the overflow trough 16 into the guide pipe 3.

Further, a bellows-type water pipe 19 is provided in the guide pipe 3 to communicate the water collection pipe 18 and the drain pipe 6. Third
As shown in the figure, a through hole 20 for passing the water collection pipe 18 is formed in the guide pipe 3. It is formed in the upper and lower elongated holes.

As shown in FIG. 2, a lock plate 2 is located at a position corresponding to the abutment member 13 approaching the upper limit stopper 11.
1 and a lock lever 2 operated by an electric cylinder 22
3 is provided, and the float 7 can be fixed at the upper limit position by the lock plate 21 and the lock lever 23. A guide roller 24 is attached to the abutting member 13 in order to guide the abutting member 13 as it moves up and down along the lock plate 21.

In such a configuration, the water to be treated 2 supplied into the water tank 1 is separated into solid and liquid by sedimentation concentration, and the resulting supernatant water passes through the baffle plate 17 and the overflow layer 15 to the overflow trough 16. be guided. At this time, the suspension of the water in the buoyancy adjustment tank 9 is adjusted in advance so that the upper end position of the overflow layer 15 is appropriate with respect to the water surface. The water in the overflow trough 16 is led to the drain pipe 6 via the water collection pipe 18 and the bellows-type water pipe 19, and is discharged to the outside of the water tank 1.

When the water level of the water to be treated 2 changes, the float 7 is guided by the guide pipe 3 and moves up and down accordingly. For this reason, the overflow layer 15 is always set at an appropriate height position with respect to the water surface, regardless of the above-mentioned fluctuations in the water level. Furthermore, when the float 7 descends, the bellows-type water pipe 19 expands and contracts accordingly, so that the water in the overflow trough 16 is reliably guided to the drain pipe 6 regardless of whether the float 7 goes up or down. It will be destroyed. As a result, supernatant water can always be taken in a stable state regardless of fluctuations in the water level.

J3, when the water level changes to the 4II end, the lifting and lowering of the float 7 is regulated by the springs 11 and 12, so as not to put a large burden on the bellows-type water pipe 19, etc. . Also, if necessary, the lock plate 21. Float 7 is fixed at the upper limit position by H and lock lever 23, and its elevation is prevented.

Effects of Hokumei As mentioned above, according to the present invention, an overflow layer is provided on the float, so that supernatant water can always be properly and efficiently taken in regardless of fluctuations in the water level in the tank. Since the water flow pipe is provided, the supernatant water in the overflow trough can be reliably guided to the drain pipe regardless of whether the float is raised or lowered.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of an embodiment of the present invention, FIG. 2 is a side sectional view thereof, and FIG. 3 is an external view of the guide pipe at d5 in the vicinity of the through hole. 1... Water tank, 3... Guide pipe, 6... Drain pipe, 7... Float, 15... Overflow layer, 16... Overflow trough, 19... Bellows type water pipe

Claims (1)

[Claims] 1. A drain pipe, a pair of vertical guide pipes, and a float that moves up and down along the pair of guide pipes according to fluctuations in the water level in the tank are provided in the water tank, and the float is provided with: , an overflow weir through which the supernatant water in the tank overflows;
An overflow trough is provided to receive the supernatant water that has passed over the overflow weir, and a bellows-type passageway is provided in the guide pipe to communicate the overflow trough and the drainage pipe, and expands and contracts in accordance with the rise and fall of the float. A float-type water intake device that features a water pipe.