CN215085121U

CN215085121U - Filter sand washing quick sewage discharge device

Info

Publication number: CN215085121U
Application number: CN202022035164.1U
Authority: CN
Inventors: 卢河; 吴伟涛; 卢泉水; 王学河
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-12-10
Anticipated expiration: 2030-09-17

Abstract

The utility model belongs to the technical field of water filtration, especially, relate to a quick waste fitting discharging of filtering pond sand washing. The sewage treatment device comprises a tank body, a filter material at the bottom of the tank body and a bearing layer for bearing the filter material, and is characterized in that the tank body above the filter material is a water storage space, a sewage suction pipe is arranged in the water storage space, the sewage suction pipe is integrally connected and communicated with an external sewage discharge pipe to form a sewage discharge main pipe, and an exhaust mechanism is arranged on the sewage discharge main pipe; the bottom of the sewage discharge pipe is arranged in the sewage discharge channel and is buried under the water surface of the sewage discharge channel. The utility model discloses simple structure need not the valve of the high cost among the prior art and seals the pipeline, but utilizes water pressure, atmospheric pressure to seal the pipeline and open, reduces input cost and maintenance cost by a wide margin, has popularization and commercial value.

Description

Filter sand washing quick sewage discharge device

Technical Field

The utility model belongs to the technical field of water filtration, especially, relate to a quick waste fitting discharging of filtering pond sand washing.

Background

The existing urban water supply or other raw water filtration needs to adopt filter tanks, including pressure filter tanks, valveless filter tanks, siphon filter tanks and V-shaped filter tanks. No matter which kind of filtering pond, it all adopts quartz sand as the filter material of filter bed, and its filtration principle is that raw water passes the filter bed to detain impurity wherein in the clearance of filter material and then obtain preliminary purification. Along with the increase of filtration water yield, the impurity that the filter material was held back is more and more, and this filter capacity that just causes the filter material descends, the phenomenon that the filter material hardened appears even, so need wash the filter material for the filter material inflation releases impurity, because the sedimentation rate of impurity is far less than the filter material, so can deposit fast after the filter material inflation, but impurity still waves in aqueous, needs at this moment to discharge these impurity along with the rivers fast, and then guarantee the filter capacity recovery of filter material.

The key of sand washing and sewage discharging is fast speed and multiple points, and simultaneously, the sewage after washing and expansion is prevented from settling into the washing sand and stone again because the flow speed is too slow or the distance from the sewage discharging port is too far. At present, most sewage discharge modes adopt a water collecting tank type, a turning plate type, a traditional siphon type, a pipeline valve type and the like, but the modes have the defects of different conditions. For example, the pipeline valve type sewage disposal needs to be closed by a valve, the larger the pipe diameter of the pipeline is, the higher the manufacturing cost of the valve is, the later maintenance cost is increased, meanwhile, the outlet of the sewage disposal is limited, and only one outlet can be used for discharging.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick waste fitting discharging of husky is washed to filtering pond, the utility model discloses simple structure need not the valve of the high cost among the prior art and seals the pipeline, but utilizes water pressure, atmospheric pressure to seal and open the pipeline, reduces input cost and maintenance cost by a wide margin, has popularization and commercial value.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

a filter pool sand washing rapid blowdown device comprises a pool body, a filter material at the bottom of the pool body and a bearing layer for bearing the filter material, wherein the pool body above the filter material is a water storage space, a sewage suction pipe is arranged in the water storage space, the sewage suction pipe is integrally connected and communicated with an external blow-off pipe to form a main blow-off pipe, and an exhaust mechanism is arranged on the main blow-off pipe;

the bottom of the sewage discharge pipe is arranged in the sewage discharge channel and buried under the water surface of the sewage discharge channel, and the horizontal height of the sewage discharge channel is lower than the bottom pipe orifice of the sewage suction pipe.

Preferably, the sewage suction pipe is arranged vertically.

Preferably, the sewage suction pipes are at least two, the bottom ends of the sewage suction pipes are located above the expansion range of the washed filter materials, the sewage discharge main pipe further comprises a sewage collection pipe, one end of the sewage collection pipe is closed, the other end of the sewage collection pipe is integrally connected with and communicated with the sewage discharge pipe, and the top end of the sewage suction pipe is connected with and communicated with the sewage collection pipe.

Preferably, the exhaust mechanism is disposed at a top surface of the sewerage main.

Preferably, the exhaust mechanism is arranged on the top surface of the joint of the sewage collecting pipe and the sewage draining pipe.

Preferably, the horizontal height of the sewage draining channel is lower than the bottom nozzle of the sewage suction pipe.

Preferably, the exhaust mechanism comprises an electric air valve arranged at an exhaust port or an exhaust pipe on the sewage drainage main pipe.

The utility model discloses the theory of operation as follows:

firstly, water is always stored in the sewage draining channel and is buried in a pipe orifice at the bottom of the sewage draining pipe.

Under the initial condition, raw water enters the water storage space after passing through the filter material, and along with rising of the water level, the sewage suction pipe and even the sewage collecting pipe are buried, the water pressure brought by rising of the water level in the water storage space rises, so that part of water enters the sewage suction pipe, and the air in the sewage discharge main pipe is compressed to a certain degree (the water level of the water storage space needs to be designed and calculated, and the air in the pipe cannot be discharged from a sewage discharge pipe opening in a sewage discharge channel). During normal filtration, clear water overflows from an overflow area higher than the top of the pipe orifice and enters a clear water tank.

Along with the decline of filter material filtering capacity, the filter material need be washed, the sewage after washing the sand needs quick discharge, this moment, the air valve is quick and close, the twinkling of an eye that the air valve was opened, the air of intraductal compressed is discharged fast, sewage gets into drainage pipe system thereupon, form the siphon, the sewage of mixing impurity is arranged to the blowdown canal in the retaining space, until the retaining space water level descends to the sewer bottom end mouth of pipe department, the air gets into the sewer and destroys the siphon of blowdown house steward, the blowdown house steward is no longer discharged water, normal filtration restarts, repeat above-mentioned process.

Compared with the prior art, the utility model, have following advantage: the utility model discloses simple structure need not the valve of the high cost among the prior art and seals the pipeline, but utilizes water pressure, atmospheric pressure to seal the pipeline and open, reduces input cost and maintenance cost by a wide margin, has popularization and commercial value.

Drawings

Fig. 1 is a schematic structural view of a sand washing and quick sewage draining device of a filter tank in a specific embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, a filter sand washing and quick sewage discharging device comprises a filter body 1, a filter material 12 at the bottom of the filter body 1 and a supporting layer 13 for supporting the filter material, wherein the filter body above the filter material 12 is a water storage space 11, at least two vertically arranged sewage suction pipes 21 are arranged in the water storage space 11, and the bottom ends of the sewage suction pipes 21 are positioned above an expansion range of the filter material after washing; the top of the sewage suction pipe 21 is connected and communicated with the sewage collection pipe 22, one end of the sewage collection pipe 22 is closed, the other end of the sewage collection pipe is integrally connected and communicated with the top end of the external sewage discharge pipe 23, the bottom of the sewage discharge pipe 23 is arranged in the sewage discharge channel 3 and is buried under the water surface of the sewage discharge channel 3, and the horizontal height of the sewage discharge channel 3 is lower than the bottom pipe orifice of the sewage suction pipe 21. The sewage suction pipe 21, the sewage collecting pipe 22 and the sewage discharging pipe 23 form a sewage discharging main pipe, and the top surface of the sewage discharging main pipe is provided with an exhaust mechanism.

The exhaust mechanism comprises an exhaust port arranged on the top surface of the joint of the sewage collecting pipe 22 and the sewage draining pipe 23 and an electric air valve 4 for closing the exhaust port.

The utility model discloses the theory of operation as follows:

Under the initial condition, the raw water gets into the retaining space behind the filter material, and along with rising of water level and bury sewage suction pipe and even dirt collecting pipe, the water pressure that the water level in the retaining space risees and bring risees, make partly water get into the sewage suction pipe, adopt three sewage suction pipes in this embodiment, the quantity of sewage suction pipe can arrange required quantity as required, and make the air in the blowdown main pipe compressed by certain degree (need the water level of design calculation retaining space, guarantee that intraductal air can't follow the blowdown mouth of pipe in the blowdown canal and discharge). During normal filtration, clear water overflows from an overflow area higher than the top of the pipe orifice and enters a clear water tank.

Claims

1. A filter pool sand washing rapid blowdown apparatus comprises a pool body, a filter material at the bottom of the pool body and a bearing layer for bearing the filter material, and is characterized in that the pool body above the filter material is a water storage space, a sewage suction pipe is arranged in the water storage space, the sewage suction pipe is integrally connected and communicated with an external blow-off pipe to form a main blow-off pipe, and the main blow-off pipe is provided with an exhaust mechanism;

the bottom of the sewage discharge pipe is arranged in the sewage discharge channel and is buried under the water surface of the sewage discharge channel.

2. The sand washing and rapid sewage draining device of filter tank according to claim 1, wherein said sewage suction pipe is vertically arranged.

3. The sand washing and rapid blowdown device of the filter tank as claimed in claim 1, wherein the number of the sewage suction pipes is at least two, the bottom ends of the sewage suction pipes are positioned above the expansion range of the filter material after washing, the blowdown header pipe further comprises a sewage collecting pipe with one closed end and the other end integrally connected and communicated with the blowdown pipe, and the top end of the sewage suction pipe is connected and communicated with the sewage collecting pipe.

4. A filter sand washing quick sewage drain apparatus according to claim 1, wherein the air exhaust mechanism is provided at the top surface of the sewage header pipe.

5. The sand washing and rapid blowdown device for the filter tank as claimed in claim 3, wherein the exhaust mechanism is arranged on the top surface of the joint of the sewage collecting pipe and the sewage draining pipe.

6. A filter sand washing quick sewage drain apparatus as claimed in claim 1, wherein the horizontal height of the sewage drainage channel is lower than the bottom nozzle of the sewage suction pipe.

7. A filter sand washing quick sewage drain apparatus according to claim 3, 4 or 5 wherein the air exhaust means comprises an electrically operated air valve provided at the exhaust port or pipe of the sewage main.