CN101817565B - Separating path return filtering device - Google Patents

Abstract

The utility model relates to a channel-separated backflow filter device, which relates to a filter tank for seawater farming. It is characterized in that: the device is composed of an overflow pool, a flow pool and a return pool. There is a water inlet above the overflow pool, and an overflow pipe is provided for the overflow pool and the flow pool; the flow pool is provided with a flow channel groove; There are several pairs of overflow walls and return walls adjacent to each other in the return pool below the flow pool; The side height is slightly lower than the top of the backflow pool; the two sides and the top of the backflow wall are connected to the two side walls and the top of the backflow pool respectively, and the bottom edge of the backflow wall is slightly higher than the bottom of the backflow pool; The top between the overflow wall of the channel overflow wall and the right pool wall is facing the channel groove, and the overflow channel on the upper part of the left wall of the return pool is lower than the height of the overflow wall; the outlet overflow channel of the return pool is connected with the water inlet of the reservoir. The advantage is that the flow rate is reduced by the sedimentation overflow method, and the sediment is deposited at the bottom of the pool through multiple S-shaped overflows.

Description

A backflow filtering device with separate channels

Technical field:

The invention relates to a filter tank for seawater culture, in particular to a channel-separated backflow filter device.

Background technique:

The structure of the existing seawater aquaculture filter pool is composed of a pool body, a water inlet, a water outlet, and a filter layer at the bottom of the pool. The filter layer is generally composed of pebbles and fine gravel. After passing through the filter layer, the water outlet pipe at the bottom of the pool is introduced into the reservoir. The reservoir is generally composed of a pool body, a water inlet, and a water outlet. Its function is only to store the filtered seawater in the pool for future use. .

The commonly used filter tank with filter layer is mainly used to filter sea sand and sundries in seawater on or among pebbles and gravels, but the sea sand is fine, while the gap between pebbles and gravels is large, and the Sand often invades these gaps, and even flows through the gaps and enters the reservoir with sea water; secondly, sea sand mixed with this gap will cause blockage and affect the filtration speed; third, this filter layer must be removed for a period of time. Cleaning or replacing is a big waste of labor.

Invention content:

The object of the present invention is to overcome the above-mentioned defects, and provide a backflow filtering device with separate channels.

The scheme of the present invention is: the device is composed of an overflow pool, a flow pool, and a return pool, a water inlet is arranged above the overflow pool, and an overflow pipe is arranged on the left side wall of the overflow pool and the flow pool; the bottom of the flow pool There is a runner groove on the right side wall, the runner groove is a long through groove, the two ends of the through groove are pool walls; The flow wall and the return wall are adjacent to each other at intervals; the two sides and the bottom of the overflow wall are connected with the two sides and the bottom of the return pool respectively, and the height of the top edge of the overflow wall is slightly lower than the top of the return pool; The two sides and the top of the wall are connected with the two side walls and the top of the backflow pool respectively, and the bottom of the backflow wall is slightly higher than the bottom of the backflow pool; the first overflow wall on the right side of the backflow pool and the right pool wall The upper part is directly facing the flow channel groove of the flow pool, and the distance between the walls is slightly larger than the width of the flow channel groove. The upper part of the left side wall of the return flow pool is provided with an outlet overflow channel, and the height of the outlet overflow channel is lower than the height of the overflow wall; The water outlet overflow channel of the reflux pool communicates with the water inlet above the water storage tank.

The advantage of the present invention is that: the present invention reduces the flow rate by the incoming water sedimentation and overflow method, forms the preliminary sediment sedimentation of the overcurrent, and then forms a slow flow through the overcurrent to enter the reflux pool, and then passes through multiple S-shaped overflows to make the sediment sedimentation At the bottom of the pool, the filtering effect is greatly improved, and the cleaning of the pool bottom is directly simplified.

Description of drawings:

Accompanying drawing is the structural representation of the present invention.

Detailed ways:

The structure of the present invention includes a pool body, which is characterized in that the device is composed of an overflow pool (2), a flow pool (7), and a return pool (10), and a water inlet (1) is arranged above the overflow pool (2). The overflow tank (2) and the upper part of the left side wall of the flow tank (7) are provided with an intercommunicating overflow pipe (6), and the bottom right side wall of the flow tank (7) is provided with a flow channel groove (5). (5) is a long channel type, and the two ends of the channel are pool walls; the return pool (10) is located below the flow pool (7), and several pairs of overflow walls (8) and return walls are arranged in the return pool (10). (9), the overflow wall (8) and the return wall (9) are adjacent to each other at intervals; the two sides and the bottom of the overflow wall (8) are connected with the two sides and the bottom of the return pool (10) respectively structure, the height of the top edge of the overflow wall (8) is slightly lower than the top of the backflow pool (10); the two sides and the top edge of the backflow wall (9) are connected to the two side walls and the top of the backflow pool (10) respectively. , the bottom edge of the backflow wall (9) is slightly higher than the bottom of the backflow pool (10); the top between the first overflow wall (8) on the right side of the backflow pool (10) and the right pool wall is facing the overflow pool (7 ) of the runner groove (5), the wall-to-wall spacing is slightly larger than the width of the runner groove (5), and the upper part of the left side wall of the backflow pool (10) is provided with an outlet overflow channel (4), and the outlet overflow channel (4 ) is lower than the height of the overflow wall (8); the outlet overflow channel (4) of the return pool (10) communicates with the water inlet above the water storage tank (11).

The overflow pipe (6) of the overflow pool (2) is a plurality of pipes arranged side by side at the same height, and the total flow cross-sectional area of the overflow pipe is larger than the flow cross-sectional area of the water inlet (1) of the overflow pool (2).

The total flow cross-sectional area of the overflow pool (7) runner groove (5) is larger than the total flow cross-sectional area of the overflow pool (2) overflow pipe (6).

When the water from the overflow pool (2) enters the pool, it must overflow from the overflow pipe (6) on the upper right wall from left to right to enter the overflow pool (7). Velocity is much smaller, so flow tank (2) plays the effect of reducing velocity, and velocity reduction also makes quicksand sink easily to the bottom, because velocity reduces, and quicksand kinetic energy also reduces, thereby plays the effect of slowing down sedimentation.

The flow pool (7) is to make the incoming water from the overflow pipe (6) enter the bottom of the pool with a vertical drop first, and then spread out flatly, and flow into the return pool (10) from the long channel type runner groove (5), because the flow The cross section of the channel groove (5) is much larger than the cross section of the overflow pipe (6), thereby greatly reducing the water flow rate entering the backflow pool (10), and playing the role of buffering and slowing down.

The function of the backflow pool (10) is to make the incoming low-velocity water enter compartments one after another, and the backflow climbs up the overflow wall (8) one after another, and diffuses from the top of the wall into the next backflow wall (9), and flows up and down repeatedly. The sand with a large specific gravity cannot go through multiple climbing slopes, and naturally settles at the bottom of the pool.

The three pools combine the flow rate reduction and the overflow method of sand sedimentation, and the filtration effect is greatly improved.

Claims (3)

1. A channel-separated backflow filter device, comprising a pool body, characterized in that: the device is made up of an overflow pool (2), an overflow pool (7), and a backflow pool (10), and the top of the overflow pool (2) A water inlet (1) is provided, an overflow pipe (6) is provided on the upper part of the left side wall of the overflow pool (2) and the flow pool (7), and a flow channel groove is provided at the bottom right wall of the flow pool (7) (5), the runner groove (5) is a long through groove type, and the two ends of the through groove are pool walls; the backflow pool (10) is located below the overflow pool (7), and several pairs of overflow The flow wall (8), the return wall (9), the overflow wall (8) and the return wall (9) are adjacent to each other at intervals; The side wall and the bottom of the pool are connected structures, and the height of the top edge of the overflow wall (8) is slightly lower than the top of the backflow pool (10); The wall and the top of the pool are connected structures, and the bottom edge of the backflow wall (9) is slightly higher than the bottom of the backflow pool (10); The square is facing the flow channel groove (5) of the flow pool (7), the distance between the walls is slightly larger than the width of the flow channel groove (5), and the upper part of the left side wall of the return flow pool (10) is provided with an outlet overflow channel (4) , the height of the outlet overflow channel (4) is lower than that of the overflow wall (8); the outlet overflow channel (4) of the reflux tank (10) communicates with the water inlet above the reservoir (11). 2. A kind of channel backflow filtering device according to claim 1, characterized in that: the overflow pipe (6) of the overflow pool (2) is a plurality of pipelines with equal heights arranged side by side, and the total flow section of the overflow pipeline is The area is greater than the flow cross-sectional area of the water inlet (1) of the overflow pool (2). 3. A channel backflow filtering device according to claim 1, characterized in that: the total flow cross-sectional area of the overflow tank (7) flow channel groove (5) is greater than that of the overflow tank (2) overflow pipe (6 ) total flow cross-sectional area.