CN213012031U

CN213012031U - Combined pool of sand collecting filter pool and wastewater recovery pool

Info

Publication number: CN213012031U
Application number: CN202021550668.0U
Authority: CN
Inventors: 谢海龙; 李国炜; 石春寅; 彭晨; ***; 邹浩东; 余畅
Original assignee: Chongqing Municipal Design Institute
Current assignee: Chongqing Municipal Design Institute
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-20
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a combination pond in collection sand filtering pond and waste water recovery pond, including sand filtering pond and waste water recovery pond, the sand filtering pond supports the top in the waste water recovery pond through the support column that is located the waste water recovery pond, filtering pond clear water pipe is located the upper portion in the waste water recovery pond, filtering pond clear water channel is located the side in waste water recovery pond, back flush water canal is located waste water recovery pond top, the bottom of the reverse canal washing water pipe that falls stretches in the waste water recovery pond, waste water recovery pond bottom of the pool one side is provided with the sump pit, the top of this sump pit is provided with the valve well, sump pit and valve well all are located the side in the sand filtering pond, the bottom of the pool in waste water recovery pond is from keeping away from one side of sump pit to the inclined plane of the gradual downward sloping of one. The utility model discloses at waste water recovery pond top coincide sand filter, reduce area, equipment drops into fewly, is favorable to arranging of clear water and backwash water pipeline, arranges rationally, and investment cost is low.

Description

Combined pool of sand collecting filter pool and wastewater recovery pool

Technical Field

The utility model relates to a combination pond in collection sand filtering pond and waste water recovery pond belongs to the waterworks water treatment facilities field.

Background

The water treatment process of the tap water plant comprises the following steps: after the incoming water lifted from river is homogenized by main water distribution well, alum is added, and then the water enters into grid flocculation and inclined tube sedimentation tank, then the water enters into gas water to wash sand filter, and the clear water discharged from the gas water washing sand filter is chlorinated and then enters into clear water tank, and then is delivered to city pipe network by water suction well, pump house and flow meter well. The backwashing wastewater discharged from the air-water washing sand filter and the wastewater discharged from the emptying pipe of the air-water washing sand filter enter a wastewater recovery water tank, and the wastewater in the wastewater recovery water tank is recovered to a total distribution well through a submersible pump. At present, the air-water washing sand filter tank and the wastewater recovery water tank are separately arranged, so that the occupied area is large, various pipelines are complicated to arrange, and the investment cost is high.

SUMMERY OF THE UTILITY MODEL

To the technical problem, an object of the utility model is to provide a combination pond in collection sand filtering pond and waste water recovery pond. Small occupied area, reasonable arrangement and low investment cost.

In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides a combination pond in collection sand filtering pond and waste water recovery pond, includes sand filtering pond and waste water recovery pond, be provided with back flush inlet tube, back flush outlet pipe and evacuation pipe on the sand filtering pond, wherein back flush outlet pipe and evacuation pipe link to each other with the back flush ditch, still be provided with the clear water outlet well on the sand filtering pond, the bottom of clear water outlet well is provided with the outlet pipe and links to each other with the filtering pond clear water pipe, the filtering pond clear water pipe links to each other its characterized in that with filtering pond clear water channel: the sand filter supports the top in the waste water recovery pond through the support column that is located the waste water recovery pond, the clear water pipe in filtering pond is located the upper portion in the waste water recovery pond, the clear water channel in filtering pond is located the side in waste water recovery pond, the back flush ditch is located waste water recovery pond top, back flush ditch bottom pipe in the pipe stretches to in the waste water recovery pond, waste water recovery pond bottom of the pool one side is provided with the sump pit, and the top of this sump pit is provided with the valve well, sump pit and valve well all are located the side in the sand filter, the pond bottom in waste water recovery pond is for following the inclined plane of keeping away from one side of sump pit to the one side downward sloping gradually that is close to the sump pit.

Adopt above-mentioned scheme, with sand filter coincide in waste water recovery pond top, practice thrift the land used, the filter clear water pipe arranges in waste water recovery pond, and the backwash water canal bottom water pipe stretches in waste water recovery pond, has saved the intercommunication pipeline between sand filter and the waste water recovery pond like this for whole factory is more succinct. Particularly, in a filling area, the recovery water tank can be arranged below the sand filter tank by using the current terrain conditions, so that the foundation directly falls on a natural bearing layer, and the cost for pile foundation treatment is saved. The valve well and the water collecting pit are positioned on the side surface of the sand filter, so that the valve well and the water collecting pit are convenient to maintain.

In the above scheme, a sand filter roof frame column for supporting a roof is arranged above the sand filter.

In the scheme, the downpipe at the bottom of the back flush channel is provided with an electric valve. The drainage of the backwashing water is convenient to control.

In the above scheme, install the immersible pump in the sump pit, the immersible pump links to each other with the drain pipe, the drain pipe passes the valve well, just valve on the drain pipe is located the valve well.

In the above scheme, the wastewater recovery tank is located underground, and the sand filter tank is located above ground.

In the scheme, a back-flushing pump room is arranged beside the sand filter, the back-flushing water inlet pipe is connected with a back-flushing pump in the back-flushing pump room, and the filter clean water channel is connected with the back-flushing pump room. A chlorination tank is arranged beside the back washing pump room, and clear water enters the clear water tank after chlorination.

Has the advantages that: the utility model discloses at waste water recovery pond top coincide sand filter, reduce area, equipment drops into fewly, is favorable to arranging of clear water and backwash water pipeline, arranges rationally, and investment cost is low.

Drawings

Fig. 1 is a sectional view in one direction of the present invention.

Fig. 2 is a cross-sectional view in another direction of the present invention.

Detailed Description

The invention will be further described by way of examples with reference to the accompanying drawings:

example 1, as shown in fig. 1-2, a combined sand-collecting filter and wastewater recovery tank comprises a sand filter 1, a wastewater recovery tank 2, a backwash water inlet pipe 3, a backwash air pipe 4, a backwash water outlet pipe 5, an evacuation pipe 6, a backwash water channel 7, a water fall pipe 8, an electric valve 9, a clean water outlet well 10, a filter clean water pipe 11, a filter clean water channel 12, a support column 13, a sump 14, a valve well 15, a sand filter roof frame column 16, a submersible pump 17 and a backwash pump house 18.

The sand filter chamber roof frame column 16 for supporting the roof is arranged on the sand filter chamber 1. The sand filter 1 is provided with a back flush water inlet pipe 3, a back flush water outlet pipe 5, an emptying pipe 6 and a back flush air pipe 4, wherein the back flush water outlet pipe 5 and the emptying pipe 6 are connected with a back flush water channel 7, the sand filter 1 is also provided with a clear water outlet well 10, the bottom of the clear water outlet well 10 is provided with a water outlet pipe connected with a filter clear water pipe 11, and the filter clear water pipe 11 is connected with a filter clear water channel 12.

The sand filter 1 is supported above the wastewater recovery water tank 2 through a support column 13 positioned in the wastewater recovery water tank 2, and in order to save space, the wastewater recovery water tank 2 is positioned below the ground, and the sand filter 1 is positioned above the ground. The filter clear water pipe 11 is positioned at the upper part in the wastewater recovery water tank 2, and the filter clear water channel 12 is positioned at the side surface of the wastewater recovery water tank 2 and is positioned outside the wastewater recovery water tank 2. The back flushing water channel 7 is positioned above the wastewater recovery water tank 2, namely the back flushing water channel 7 is positioned in the sand filter 1. A downpipe 8 at the bottom of the backwashing water channel 7 extends into the wastewater recovery tank 2, and backwashing water is directly discharged into the wastewater recovery tank 2. An electric valve 9 is arranged on a downpipe 8 at the bottom of the back flushing ditch 7. One side of the bottom of the wastewater recovery water tank 2 is provided with a water collecting pit 14, and the water collecting pit 14 is sunken downwards, namely the bottom surface of the water collecting pit 14 is lower than the bottom surface of the wastewater recovery water tank 2. A valve well 15 is arranged above the water collecting pit 14, the water collecting pit 14 and the valve well 15 are both positioned on the side surface of the sand filter 1, and the bottom surface of the wastewater recovery water tank 2 is an inclined surface which gradually inclines downwards from one side far away from the water collecting pit 14 to one side close to the water collecting pit 14. A submersible pump 17 is installed in the sump 14, the submersible pump 17 is connected with a drain pipe, the drain pipe penetrates through the valve well 15, and a valve on the drain pipe is located in the valve well 15.

A back-flushing pump room 18 is arranged beside the sand filter 1, the back-flushing water inlet pipe 3 is connected with a back-flushing pump (not shown in the figure) in the back-flushing pump room 18, and the filter clear water channel 12 is connected with the back-flushing pump room 18 (the connection of the back-flushing pump room 18 is not shown in the figure). The clean water in the filter clean water channel 12 passes through the back flush pump room 18, then passes through the chlorination tank for chlorination, and then enters the clean water tank. The clean water from the filter clean water channel 12 is used for back washing of the sand filter 1.

The present invention is not limited to the above embodiments, and those skilled in the art can understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a combination pond in collection sand filtering pond and waste water recovery pond, includes sand filtering pond and waste water recovery pond, be provided with back flush inlet tube, back flush outlet pipe and evacuation pipe on the sand filtering pond, wherein back flush outlet pipe and evacuation pipe link to each other with the back flush ditch, still be provided with the clear water outlet well on the sand filtering pond, the bottom of clear water outlet well is provided with the outlet pipe and links to each other with the filtering pond clear water pipe, the filtering pond clear water pipe links to each other its characterized in that with filtering pond clear water channel: the sand filter supports the top in the waste water recovery pond through the support column that is located the waste water recovery pond, the clear water pipe in filtering pond is located the upper portion in the waste water recovery pond, the clear water channel in filtering pond is located the side in waste water recovery pond, the back flush ditch is located waste water recovery pond top, back flush ditch bottom pipe in the pipe stretches to in the waste water recovery pond, waste water recovery pond bottom of the pool one side is provided with the sump pit, and the top of this sump pit is provided with the valve well, sump pit and valve well all are located the side in the sand filter, the pond bottom in waste water recovery pond is for following the inclined plane of keeping away from one side of sump pit to the one side downward sloping gradually that is close to the sump pit.

2. The sand trap filter and wastewater recovery pond combination as set forth in claim 1, wherein: and a sand filter roof frame column for supporting a roof is arranged on the sand filter.

3. A combined sand trap and wastewater recovery pond according to claim 1 or 2, wherein: an electric valve is arranged on the downpipe at the bottom of the back flush channel.

4. A combined sand trap and wastewater recovery pond according to claim 3, wherein: the submersible pump is installed in the water collecting pit and connected with the water discharging pipe, the water discharging pipe penetrates through the valve well, and the valve on the water discharging pipe is located in the valve well.

5. The sand trap filter and wastewater recovery pond combination according to claim 4, wherein: the wastewater recovery water tank is located under the ground, and the sand filter tank is located on the ground.

6. A combined sand trap and wastewater recovery pond according to claim 5, wherein: and a back-flushing pump room is arranged beside the sand filter, a back-flushing water inlet pipe is connected with a back-flushing pump in the back-flushing pump room, and the filter clean water channel is connected with the back-flushing pump room.