CN204001178U - There is the rainwater utilization storage pond from pre-washing function - Google Patents

Abstract

The utility model discloses a kind of rainwater utilization storage pond having from pre-washing function, comprise pond body, pond bottom upper plate is established at body middle part, pond, itself and pond body are connected with load-bearing pillar between bottom, between bottom upper plate bottom, pond and pond body, be provided with filtration beds and clear water layer, in pond bottom upper plate and pond body, between week, be provided with Bilge, in Bilge, connect blow-off pipe, on the bottom upper plate of pond, establish water tank, opening is established in water tank bottom, opening plaster is combined on the bottom upper plate of pond, on water tank, be connected with vacuum pump and admission valve, and its top is connected with water tank lifting appliance, between water tank and clear water layer, be connected with the first clear water pipe, clear water layer is connected with and leads to the external clear water reuse pipe in pond.The rainwater that utilizes storage pond self to collect from rinse-system of this storage pond rinses, not only effectively removed mud, promoted recycle-water water quality, also improved rainwater recycle utilization rate, rainwater utilization storage pond has been alleviated and with the effect of water pressure, be not fully exerted.

Description

Rainwater storage tank with self-flushing function

technical field

The utility model relates to water supply and drainage equipment, in particular to a rainwater utilization storage tank with self-flushing function.

Background technique

The rainwater utilization and storage tank is mainly used for the collection and recycling of rainwater in the community, which plays an important role in saving water and relieving urban water pressure. Because the collected rainwater carries a lot of sludge and waste particles, over time, a thick layer of dirty sediment will accumulate at the bottom of the rainwater storage tank, which is not easy to remove. The existing storage tanks are generally equipped with flushing equipment. To solve this problem by introducing flushing water, the existing storage tanks have the following disadvantages: 1) The amount of additional flushing water that needs to be introduced is too large, which reduces the strength of rainwater to use the storage tank to relieve water pressure; 2) The energy consumption is too high; 3 ) The pipeline of the flushing equipment is long and the structure of the equipment is complicated.

Contents of the invention

The purpose of this utility model is to provide a rainwater storage tank with self-flushing function. The rainwater storage tank can use the rainwater collected by itself to flush the storage tank, which saves water and alleviates the problem to a large extent. Water pressure reduces energy consumption.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a rainwater storage tank with self-flushing function, including a pool body, the middle part of the pool body is provided with a pool bottom top plate, and the pool bottom top plate is connected to the A number of load-bearing columns are connected between the bottom of the pool body, a filter layer and a clear water layer are arranged between the bottom of the pool bottom top plate and the bottom of the pool body from top to bottom, and a filter layer and a clear water layer are arranged between the outer wall of the pool bottom top plate and the inner wall of the pool body. There is a sewage ditch, the sewage ditch is connected with a sewage pipe, and a water storage tank is arranged on the top plate of the pool bottom. Above, the water storage tank is connected with a vacuum pump and an air inlet valve respectively, and the top of the water storage tank is connected with a water storage tank lifting device, and a first clean water pipe is connected between the water storage tank and the clean water layer , the clear water layer is connected with a clear water reuse pipe leading to the outside of the pool.

The utility model optimizes the structure of the rainwater storage tank, and adds a self-flushing system in it. The self-flushing system uses the rainwater collected by the storage tank itself to flush the storage tank, and flushes the accumulated dirt and sediment at the bottom of the rainwater storage tank. to the sewage ditch, and finally discharge the pool body from the sewage ditch, which not only effectively removes the sludge, improves the quality of recycled water, but also improves the utilization rate of rainwater recycling, so that the role of rainwater storage tanks in relieving water pressure can be fully exerted; The self-flushing system of the rainwater storage tank has a simple and ingenious structure, low energy consumption, low construction cost and easy maintenance.

Further, a circular groove is provided on the top of the top plate of the pool bottom, and the bottom of the water storage tank is placed in the groove, and is sealingly fitted with the inner periphery of the groove. The groove is not only conducive to the positioning of the water storage tank, so that it can be placed firmly on the top of the top plate at the bottom of the pool, but also conducive to the sealing and cooperation between the bottom of the water storage tank and the inner circumference of the groove, thereby preventing the self-flushing system from When activated, the clean water stored in the water storage tank leaks from the bottom opening.

Further, the first clear water pipe is arranged vertically, its top end extends into the water storage tank from the opening at the bottom of the water storage tank, and its bottom end extends into the clear water layer directly below the opening . The top of the first clean water pipe is arranged at the opening of the water storage tank, so that the first clean water pipe and the moving water storage tank do not interfere with each other during self-flushing; the first clean water pipe is arranged vertically, which is conducive to shortening the pipeline The distance is convenient for smoothly introducing the self-flushing water from the clear water layer into the water storage tank.

Further, a dense metal mesh is separated between the filter layer and the clear water layer, and the periphery of the metal mesh is fixed on the inner wall of the pool.

Further, the filter layer includes a gravel layer at the bottom, and a sand layer is laid on top of the gravel layer.

Further, a submersible sewage pump is provided in the sewage ditch, and an output port of the submersible sewage pump is connected to the sewage discharge pipe.

Furthermore, the top plate of the pool bottom is in the shape of a cylinder, and the ring-shaped sewage ditch is formed between the outer peripheral wall and the inner peripheral wall of the pool.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a rainwater utilization storage tank with self-flushing function.

Fig. 2 is a top view structural diagram of a rainwater utilization storage tank with self-flushing function.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings to facilitate a clearer understanding of the utility model, but they do not limit the utility model.

As shown in Figure 1 and Figure 2, a rainwater storage tank with self-flushing function includes a cylindrical pool body 1 made of concrete, and a cylindrical bottom top plate is provided in the middle of the pool body 1 2. There is a circular groove 15 on the top of the top plate 2 of the pool bottom. Several load-bearing columns are connected between the top plate 2 of the pool bottom and the bottom of the pool body 1. The bottom of the top plate 2 of the pool bottom and the bottom of the pool body 1 A filter layer 3 and a clean water layer 4 are provided in sequence from top to bottom, and a dense metal mesh 5 is separated between the filter layer 3 and the clean water layer 4, and the periphery of the metal mesh 5 is fixed on the inner wall of the pool body 1 Above, the filter layer 3 includes a gravel layer at the bottom and a fine sand layer at the top, the size of the fine sand grains is larger than the aperture of the metal mesh 5, and the outer wall of the pool bottom top plate 2 and the inner wall of the pool body 1 are surrounded by a An annular sewage ditch 6, the sewage ditch 6 is provided with a submersible sewage pump 16 and a sewage discharge pipe 7, and the output port of the submersible sewage pump 16 is connected with the sewage discharge pipe 7; the top plate 2 at the bottom of the pool is provided with a cylinder Shaped water storage tank 8, the bottom of the water storage tank 8 rests in the groove 15, the top of the water storage tank 8 is closed, and the bottom is provided with an opening 9, and the opening 9 is attached to the groove 15. On the bottom surface, sealing strips are used between the outer periphery of the bottom of the water storage tank 8 and the inner peripheral wall of the groove 15 for sealing fit. The upper end of the water storage tank 8 is connected with a vacuum pump 10 and an air intake valve 11 respectively. The water storage tank lifting device 12, the first clean water pipe 13 is connected between the water storage tank 8 and the clear water layer 4, the first clean water pipe 13 is vertically arranged, and its top is from the bottom of the water storage tank 8 The opening 9 of the opening 9 extends into the water storage tank 8, and its bottom end extends into the clear water layer 4 directly below the opening 9, and the clear water layer 4 is connected to the outside of the pool body 1. Clean water reuse pipe 14.

The working process of the utility model is as follows; when it rains, the rainwater is stored by the storage tank, and at the same time, the rainwater in the pool body 1 slowly infiltrates into the clear water pool through the filter layer 3 to form a clear water layer 4, and the rainwater level in the pool body 1 drops. , sludge, waste particles, etc. are all over the bottom of the pool, that is, on the top plate 2 at the bottom of the pool; when the waste on it accumulates to a certain extent, close the air intake valve 11, and turn on the vacuum pump 10 at the same time to pump the air in the water storage tank 8 exhaust, so that a vacuum is formed in the water storage tank 8, and under atmospheric pressure, the clean water in the clean water layer 4 is pressed into the water storage tank 8 through the first clean water pipe 13, and when the water level in the water storage tank 8 reaches the design water level, close the The vacuum pump 10 opens the intake valve 11 at the same time, the inside of the water storage tank 8 is connected to the atmosphere, at this time, the lifting device is opened to lift the water storage tank 8, and the stored water in the water storage tank 8 pours out from the bottom opening 9 , and rely on its own potential energy to form a powerful annular water wave, and then flush the sludge and waste particles on the top plate 2 of the pool into the annular sewage ditch 6; when the sludge and waste particles in the sewage ditch 6 accumulate to a certain extent Finally, open the submersible sewage pump 16 in the sewage ditch 6, sludge, waste particles, etc. are discharged from the pool body 1 through the sewage pipe 7; except that a part of the clear water in the clear water layer 4 is used for the self-flushing of the rainwater storage tank, the other part passes through The clear water reuse pipe 14 sends clear water to the reclaimed water pipe network of the community through the clear water reuse pool, and is used for irrigation of flowers and plants in the community and cleaning of toilets.

This rainwater storage tank is mainly aimed at the utilization of water resources in residential quarters. In order to save space costs, it can be built on the top of civil buildings; the overall size and shape of the self-flushing system of the rainwater storage tank can be changed according to actual conditions. Adjustment.

Claims (7)

1. the rainwater utilization storage pond having from pre-washing function, comprise pond body (1), it is characterized in that: described pond body (1) middle part is provided with pond bottom upper plate (2), between described pond bottom upper plate (2) and described pond body (1) bottom, be connected with some load-bearing pillars, between described pond bottom upper plate (2) bottom and described pond body (1) bottom, be provided with successively from top to bottom filtration beds (3) and clear water layer (4), between described pond bottom upper plate (2) outer wall and described pond body (1) inwall, be provided with Bilge (6), in described Bilge (6), be connected with blow-off pipe (7), described pond bottom upper plate (2) is provided with water tank (8), described water tank (8) top seal, bottom is provided with opening (9), described opening (9) is fitted on described pond bottom upper plate (2), on described water tank (8), be connected with respectively vacuum pump (10) and admission valve (11), and described water tank (8) top is connected with water tank lifting appliance (12), between described water tank (8) and described clear water layer (4), be connected with the first clear water pipe (13), described clear water layer (4) is connected with and leads to the outer clear water reuse pipe (14) of described pond body (1).

2. the rainwater utilization storage pond having from pre-washing function according to claim 1, it is characterized in that: described pond bottom upper plate (2) top is provided with circular groove (15), the bottom of described water tank (8) is placed in described groove (15), and is sealed and matched with interior week of described groove (15).

3. the rainwater utilization storage pond having from pre-washing function according to claim 1, it is characterized in that: described the first clear water pipe (13) is vertically arranged, its top is stretched in described water tank (8) from the opening (9) of described water tank (8) bottom, and its bottom is stretched in the described clear water layer (4) under described opening (9).

4. the rainwater utilization storage pond having from pre-washing function according to claim 1, it is characterized in that: between described filtration beds (3) and described clear water layer (4), be separated with compact metal net (5), the week of described wire lath (5) is along being fixed on described pond body (1) inwall.

5. according to the rainwater utilization storage pond from pre-washing function that has described in claim 1 or 4, it is characterized in that: described filtration beds (3) comprises the macadam of bottom, and described macadam top is covered with layer of sand.

6. the rainwater utilization storage pond having from pre-washing function according to claim 1, is characterized in that: in described Bilge (6), be provided with submersible sewage pump (16), the delivery outlet of described submersible sewage pump (16) is connected with described blow-off pipe (7).

7. the rainwater utilization storage pond having from pre-washing function according to claim 1 and 2, it is characterized in that: described pond bottom upper plate (2) is cylindric, between its periphery wall and described pond body (1) internal perisporium, surround the described Bilge (6) of annular.