CN114351820A - Sewage regulation and storage device and method based on gravity water inflow - Google Patents

Abstract

The invention provides a sewage regulation and storage device based on gravity inflow, which comprises: the interception part is respectively communicated with the sewage input unit and the confluence pipe; and the buffer part is communicated with the interception part. The invention effectively avoids the technical defects that the structural design that the sewage input by the sewage input unit directly enters the confluence pipe to be output in the technology is easy to cause serious pollution of natural water body in rainy days, or the sewage treatment facility has overlarge treatment pressure, resource waste and the like, can achieve the technical effect of regulating and storing the sewage when the sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

Description

Sewage regulation and storage device and method based on gravity water inflow

Technical Field

The invention belongs to the technical field of drainage, and particularly relates to a sewage storage and regulation device and method based on gravity water inflow.

Background

The urban pipe network is divided into a combined drainage system and a split drainage system and is used for discharging sewage (such as domestic sewage) in a unit area.

However, in this drainage method, the sewage discharged from the sewage storage facility directly enters the flow merging pipe and then mixes with the rainwater, and if the mixed water of the rainwater and the sewage is directly drained into the natural water body in rainy days, the received water body is easily seriously polluted, and if the mixed water is directly drained into the sewage treatment facility for treatment, a large amount of clean rainwater in rainy days enters the sewage treatment facility for unnecessary treatment, which results in resource waste.

Therefore, the structural design that the sewage input by the sewage containing facility directly enters the confluence pipe to be output in the prior art has the technical defects that the natural water body is easy to seriously pollute in rainy days, or the sewage treatment facility has overlarge treatment pressure, resource waste and the like.

Disclosure of Invention

The technical problem to be solved by the invention is that the structural design that the sewage input by the sewage containing facility directly enters the confluence pipe and is output in the prior art has the technical defects that the natural water body is easy to seriously pollute in rainy days, or the sewage treatment facility has overlarge treatment pressure, resource waste and the like.

In order to solve the technical problem, the invention provides a sewage storage and regulation device based on gravity water inflow, which is used for a drainage system, wherein the drainage system comprises a sewage input unit for receiving sewage discharged by a unit area and a confluence pipe for discharging the sewage to a municipal pipeline; the device comprises:

the interception part is internally provided with a containing space for containing sewage and is respectively communicated with the sewage input unit and the confluence pipe;

the buffer part is internally provided with a storage space for storing sewage and is communicated with the interception part;

wherein, when the buffer part is filled with water, the sewage conveyed into the accommodating space by the sewage input unit flows into the storage space under the action of gravity; when the buffer part discharges water, sewage in the storage space flows into the accommodating space under the action of self gravity or under the driving of power and is discharged by the junction pipe.

Optionally, the cutout includes:

the intercepting inlet is communicated with the water outlet of the sewage input unit;

the first intercepting outlet is communicated with the confluence pipe, and a second intercepting outlet is provided with a second switch.

Optionally, a bottom elevation of a position where the buffering portion is communicated with the intercepting portion is equal to or higher than a bottom elevation of a position where the intercepting portion is communicated with the confluence pipe;

the cutout portion includes:

the intercepting inlet is communicated with the water outlet of the sewage input unit;

a first shut-off outlet and a second shut-off outlet, the second shut-off outlet being in communication with the buffer, a bottom elevation of the second shut-off outlet being equal to or higher than a bottom elevation of the first shut-off outlet.

Optionally, the buffer portion includes:

the buffer port is communicated with the second intercepting outlet, and the bottom elevation of the buffer port is equal to that of the second intercepting outlet;

when buffering portion intake, sewage in the damming portion loops through under the action of gravity the second damming export the buffering mouth flows in the buffering portion when buffering portion goes out water, sewage in the buffering portion loops through under the action of gravity or under power drive the buffering mouth the second damming export flow in the damming portion.

Optionally, the method further includes:

a first switch disposed at the first shutoff outlet;

when the first switch is turned on, the sewage flows into the confluence pipe through a water outlet of the sewage input unit, the first intercepting outlet and a water inlet of the confluence pipe in sequence, and/or flows into the confluence pipe from the buffer part through the buffer port, the second intercepting outlet, the first intercepting outlet and the water inlet of the confluence pipe in sequence under the action of gravity or under the driving of power;

when the first switch is closed, the sewage flows into the buffer part for storage through the water outlet of the sewage input unit, the second intercepting outlet and the buffer port in sequence under the action of gravity.

Optionally, when the buffer part is drained and the sewage in the storage space flows into the accommodating space under the action of self gravity,

the buffer part is a cylindrical pipeline with an opening at one end and a sealing structure at the other end, the pipeline is transversely arranged relative to the closure part, and the opening of the pipeline is the buffer opening.

Optionally, the conduits are distributed obliquely with respect to the intercepting part, and the vertical height of the conduits and the second intercepting outlet gradually decreases from the opposite end of the buffer port towards the end of the buffer port.

Optionally, when the buffer part is drained and the sewage in the storage space flows into the accommodating space under the action of self gravity,

buffer portion is the square cell body that one end was equipped with open structure, just the vertical height of square cell body is less than the horizontal width of square cell body, the open structure of square cell body does buffer the mouth, the end elevation of square cell body equals or is higher than the end elevation of first truncated stream export.

Optionally, when the buffer part is drained and the sewage in the storage space flows into the accommodating space under the action of power drive,

the buffer part is a square tank body with an opening structure at one end, the opening structure of the square tank body is the buffer opening, and the bottom elevation of the square tank body is lower than that of the first cut-off outlet;

the sewage regulation and storage device further comprises: water pump and conveyer pipe, the water pump sets up in the buffer, and with the water inlet of conveyer pipe is connected, the delivery port of conveyer pipe is arranged in the damming portion, in order when the buffer goes out water, with save in the buffer the sewage pump is pumped to the damming portion.

Optionally, the method further includes:

the concave station is fixed buffer port department, the delivery port of conveyer pipe is arranged in on the concave station, with when buffer portion goes out water, will save in the buffer portion the sewage pump is pumped to concave station department, and under self action of gravity sewage passes through in proper order buffer port the second outlet flow that dams in the damming portion.

Optionally, a third switch is arranged at a water outlet of the sewage input unit;

alternatively, the first and second electrodes may be,

the intercepting part is close to the water outlet of the sewage input unit, a fixed weir is arranged at the water outlet of the sewage input unit, and the top elevation of the fixed weir is higher than the bottom elevation of the water outlet of the sewage input unit.

In a second aspect, there is also provided a sewage storage method based on gravity feed, applied to the apparatus in any one of the above, the method including:

receiving a recognition instruction whether the buffer part needs to discharge water, if so, controlling a first switch to be switched on, so that the sewage in the buffer part flows into the cut-off part under the action of gravity and is discharged by the confluence pipe;

and receiving an identification instruction whether the buffer part needs to store water or not, and if so, controlling the first switch to be closed so that the sewage in the intercepting part flows into the buffer part under the action of gravity.

Has the advantages that:

the sewage regulating and storing device provided by the invention has the advantages that when the sewage and the rainwater need to be separated in rainy days, only the sewage output by the sewage input unit automatically flows into the buffer part for storage through the cut-off part under the action of gravity, so that only the rainwater exists in the flow combining pipe, and when the sewage is required to be output, only the sewage stored in the buffer part flows into the flow combining pipe through the cut-off part under the action of gravity, so that the technical defects that the sewage input by a sewage containing facility directly enters the flow combining pipe for output in the technical design, the serious pollution of a natural water body is easily caused in rainy days, the treatment pressure of a sewage treatment facility is overlarge, the resource waste and the like are easily caused, the technical effect of regulating and storing the sewage when the sewage is not required to be discharged can be effectively achieved, and the sewage regulating and storing device has the characteristics of simple structure, convenience in operation and wide applicability.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a sewage storage and regulation device according to an embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a first schematic structural diagram of a sewage storage device according to an embodiment of the present invention;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic view of another structure of a sewage storage device according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another sewage storage and regulation device according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a sewage storage device according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a sewage storage device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another sewage storage and regulation device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification are within the protection scope of the present invention; the "and/or" keyword referred to in this embodiment means sum or two cases, in other words, a and/or B mentioned in the embodiments of this specification means two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, and means: only A does not include B; only B does not include A; including A and B.

Meanwhile, in the embodiments of the present description, when an element is referred to as being "fixed to" another element, it may be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical", "horizontal", "left", "right" and the like used in the embodiments of the present specification are for illustrative purposes only and are not intended to limit the present invention.

It should be noted that, in order to describe the present specification in more detail so as to enable those skilled in the art to understand the present specification more clearly and clearly, and to support the technical problems to be solved and the technical effects to be achieved by the present specification, before describing the present specification, the following explanations are made for terms and terms related thereto:

the unit area refers to an area with sewage, such as a residential area, a school, an office building, a shopping mall and the like; the sewage branch pipe, the 'confluence pipe', is a pipeline used for conveying rainwater, sewage or mixed water of the rainwater and the sewage in the unit area pipeline; the sewage input unit refers to a sewage branch pipe for collecting and transmitting sewage in the unit area, and can also be a sewage collecting facility (such as a septic tank and the like, which has a tank body structure with a treatment function) for collecting and chemically treating sewage transmitted by the sewage branch pipe; "bottom elevation" refers to the elevation value of the bottommost layer of a component at a certain location.

In the examples of this specification:

fig. 1-2 are schematic structural diagrams of a sewage storage and regulation device based on gravity inflow according to an embodiment of the present specification, which corresponds to a specific application scenario of a drainage system;

fig. 3 to 5 are schematic structural diagrams of another sewage storage and regulation device based on gravity inflow according to an embodiment of the present specification, which is applied to a specific application scenario of a drainage system;

when the sewage storage device provided in the embodiment of the present specification is applied to a specific application scenario of a drainage system, the sewage storage device can regulate and store sewage based on the self-gravity of the sewage, that is, the sewage is discharged and stored, the drainage system may include a sewage branch pipe, a sewage input unit 20 (that is, a sewage storage facility 20), a confluence pipe 30, a municipal pipeline, and the like, and the sewage branch pipe is connected to the sewage storage facility to intensively convey the sewage in the unit area to the sewage storage facility.

Example one

Specifically, referring first to fig. 1-2, in an embodiment of the sewage storage device, the sewage storage device at least includes a cut-off portion 10 and a buffering portion 40.

Wherein, the cut-off part 10 is internally provided with a containing space 101 for containing sewage and is respectively communicated with the sewage containing facility 20 and the confluence pipe 30; the size and volume of the storage space 101 are not limited in the present invention, and can be flexibly designed according to actual operation requirements. Similarly, the buffer part 40 also has a storage space 401 for storing the above-mentioned sewage therein, and is communicated with the cut-off part 10; the size and volume of the storage space 401 are not limited in the present invention, and may be flexibly designed according to actual operation requirements. The intercepting part 10 is internally provided with a containing space 101 for containing sewage and is respectively communicated with the sewage containing facility and the confluence pipe; wherein, the bottom elevation of the communicating part of the buffering part 40 and the cut-off part 10 is equal to or higher than the bottom elevation of the communicating part of the cut-off part 10 and the confluence pipe 30.

In the embodiment of the present specification, in order to reduce the control cost, since the buffering portion 40 and the intercepting portion 10 are not provided with a control switch for circulation of the sewage, so that when the bottom elevation of the buffer portion 40 at the portion communicating with the cut-off portion 10 is equal to the bottom elevation of the cut-off portion 10 at the portion communicating with the confluence pipe 30, it is understood that the sewage in the buffering portion 40 and the intercepting portion 10 can be communicated with each other by their own weight, and when the bottom elevation of the portion where the buffering portion 40 communicates with the cut-off portion 10 is higher than the bottom elevation of the portion where the cut-off portion 10 communicates with the confluence pipe 30, it is understood that the sewage in the buffering portion 40 may flow toward the intercepting portion 10 directly under its own weight, this makes it possible to transfer the sewage into the storage space 101 from the sewage storage facility when the buffer 40 needs to be filled with water, as the liquid level in the storage space 101 continuously rises, the sewage flows into the storage space 401 under the action of gravity; when the buffer part 40 needs to discharge water, since the sewage in the cut-off part 10 is continuously lowered along with the discharge of the flow-joining pipe 30, the sewage in the storage space 401 flows into the receiving space 101 by gravity and is discharged by the flow-joining pipe 30.

As an embodiment of the cut-off portion 10, it may include: the sewage treatment device comprises a cut-off inlet 102, a first cut-off outlet 103 and a second cut-off outlet 104, wherein the cut-off inlet 102 is used for being connected with a sewage containing facility and providing an input interface for sewage to be regulated, the first cut-off outlet 103 is used for being connected with a confluence pipe and providing an output interface for the sewage to be regulated, and the second cut-off outlet 104 is connected with the buffer part 40 and is used for conveying the sewage input by the cut-off inlet 102 to the buffer part 40 through the second cut-off outlet 104 for storage.

As an embodiment of the buffer portion 40, it may include: and a buffer port 402, wherein the buffer port 402 is used for communicating with the second intercepting outlet 104, so that when the sewage input by the sewage input mechanism needs to be regulated, the sewage in the intercepting part 10 flows into the buffer part 40 through the second intercepting outlet 104 and the buffer port 402 in sequence for storage, and when the sewage in the buffer part 40 needs to be discharged, the sewage stored in the buffer part 40 only needs to flow into the intercepting part 10 through the buffer port 402 and the second intercepting outlet 104 in sequence, and is discharged into the merging pipe 30 through the first intercepting outlet 103.

It should be noted that, for the above-mentioned intercepting inlet 102, first intercepting outlet 103, second intercepting outlet 104, and buffer port 402, the present invention does not limit the aperture size and the directions of their respective openings on their carriers, and can be flexibly designed according to actual operation requirements as long as the sewage can be communicated among the sewage storage facility 20, the intercepting part 10, and the buffer part 40, and similarly, for the number of buffer parts 40 and the number of corresponding buffer ports 402, the present embodiment is not limited, and can be flexibly designed according to the actual water storage amount, and it should not be considered that the aperture size, the directions of their respective openings on their carriers, and the number of buffer parts 40 are different, and is not within the protection scope of the present invention.

As an application environment of the embodiment of the present specification, the "sewage requiring regulation" may be regulated by setting a regulation node according to the situations of rainfall and no rainfall, for example, if the sewage output by the sewage storage facility directly enters the flow mixing pipe and then is mixed with the rainwater, the mixed water of the rainwater and the sewage is easily seriously polluted when being directly discharged into the natural water body, and if the mixed water is directly discharged into the sewage treatment facility for treatment, a large amount of clean rainwater in rainy days enters the sewage treatment facility for unnecessary treatment, which results in resource waste. Therefore, the sewage output by the sewage storage facility 20 can be stored by the sewage storage device provided in the embodiment of the present specification when there is rainfall, and the sewage storage can be stopped when there is no rainfall, that is, the sewage output by the sewage storage facility 20 is directly input to the confluence pipe 30;

that is, the interception inlet 102 of the interception part 10 is communicated with the water outlet of the sewage containing facility 20 in the unit area, so that the sewage in the sewage containing facility 20 firstly enters the interception part 10 before entering the confluence pipe, and is communicated with the second interception outlet 104 through the buffer port 402 of the buffer part 40, so as to realize the communication between the interception part 10 and the buffer part 40, therefore, when the sewage needs to be regulated and stored in rainfall, the sewage output by the sewage containing facility 20 only needs to flow into the buffer part 40 through the second interception outlet 104 and the buffer port 402 in sequence, so that only the rainwater exists in the confluence pipe 30, and when the sewage is required to be output in sunny days, the sewage stored in the buffer part 40 only needs to flow into the confluence pipe 30 through the buffer port 402, the second interception outlet 104 and the first interception outlet 103 in sequence, thereby effectively avoiding the structural design existing in the prior art that the sewage input by the sewage containing facility 20 directly enters the confluence pipe to be output in rainy days and is very easy to be output in rainy days The sewage treatment system has the advantages of causing serious pollution to natural water bodies or having technical defects of overlarge treatment pressure of sewage treatment facilities, resource waste and the like, achieving the technical effect of regulating and storing the sewage when the sewage is not required to be discharged, and having the characteristics of simple structure, convenient operation and wide applicability.

As another application environment of the embodiment of the present specification, for the above-mentioned "sewage requiring regulation", a regulation node may be set according to the magnitude of rainfall for regulation, for example, if the rainfall is relatively large, if the sewage output by the sewage storage facility directly enters the flow mixing pipe and then is mixed with the rainwater, the mixed water of the rainwater and the sewage is discharged directly into the natural water body, which is very likely to cause serious pollution to the received water body, and if the sewage is discharged directly into the sewage treatment facility for treatment, a large amount of relatively clean rainwater in rainy days enters the sewage treatment facility for unnecessary treatment, which results in resource waste. Therefore, at this time, the sewage discharged from the sewage storage facility 20 may be stored by the sewage storage device provided in the embodiment of the present specification when the rainfall is relatively large, and the sewage storage may be stopped when the rainfall is relatively small, that is, the sewage discharged from the sewage storage facility 20 may be directly input to the confluence pipe 30.

That is, the interception inlet 102 of the interception part 10 is communicated with the water outlet of the sewage containing facility 20 in the unit area, so that the sewage in the sewage containing facility 20 firstly enters the interception part 10 before entering the merging pipe, and is communicated with the second interception outlet 104 through the buffer port 402 of the buffer part 40 to realize the communication between the interception part 10 and the buffer part 40, thus when the rainfall is large and the sewage needs to be regulated, only the sewage output by the sewage containing facility 20 sequentially passes through the second interception outlet 104 and the buffer port 402 to flow into the buffer part 40 for storage, so that only the rainwater with large rainfall exists in the merging pipe 30, and when the sewage is needed to be output in sunny days or with small rainfall, only the sewage stored in the buffer part 40 sequentially passes through the interception buffer port 402, the second interception outlet 104 and the first interception outlet 103 to flow into the merging pipe 30, the technical defects that the sewage input by the sewage containing facility 20 directly enters the confluence pipe to be output by a structural design, when the rainfall is large, the natural water body is extremely easy to cause serious pollution, or the sewage treatment facility has overlarge treatment pressure, resource waste and the like are effectively avoided, the technical effect of regulating and storing the sewage when the sewage is not required to be discharged can be achieved, and the sewage treatment device has the characteristics of simple structure, convenience in operation and wide applicability.

Those skilled in the art can understand that, regarding the magnitude and the size of the rainfall, the present invention is not limited, and the rainfall parameter threshold may be set according to the actual operation requirement for defining.

As another application environment of the embodiment of the present specification, the "sewage requiring regulation" may be that a liquid level interval threshold is preset according to the liquid level height in the buffer unit 40, and the liquid level height in the buffer unit 40 is monitored in real time, so that when the liquid level height is lower than the minimum value of the interval threshold, it is determined that the sewage needs to be regulated, that is, the sewage output by the sewage storage facility 20 at this time flows into the buffer unit 40 to be stored. When the liquid level is higher than the maximum value of the threshold value of the interval, the adjustment and storage of the sewage can be stopped, that is, the sewage output by the sewage containing facility 20 is directly input into the confluence pipe 30.

That is, the intercepting inlet 102 of the intercepting part 10 is communicated with the water outlet of the sewage containing facility 20 in the unit area, so that the sewage in the sewage containing facility 20 firstly enters the intercepting part 10 before entering the confluence pipe, and is communicated with the second intercepting outlet 104 through the buffer port 402 of the buffer part 40 to realize the communication between the intercepting part 10 and the buffer part 40, so that when the liquid level height is lower than the minimum value of the interval threshold, the storage space of the buffer part 10 is large at the moment, in order to reduce the conveying pressure of the confluence pipe, the treatment pressure of the sewage treatment facility and the like, the sewage output by the sewage containing facility 20 only needs to flow into the buffer part 40 through the second intercepting outlet 104 and the buffer port 402 in sequence to be stored, the sewage is stored when the liquid level of the buffer part 40 is relatively low, and when the liquid level height is higher than the maximum value of the interval threshold, the sewage stored in the buffer part 10 is about to overflow at the moment, at this time, only the sewage stored in the buffer part 40 sequentially passes through the buffer port 402, the second intercepting outlet 104 and the first intercepting outlet 103 and flows into the confluence pipe 30, so that the technical defects of the confluence pipe, overlarge treatment pressure of a sewage treatment facility, resource waste and the like are effectively reduced, the overflow of the sewage in the buffer part 40 can be effectively prevented, and the buffer part has the characteristic of high safety.

As another application environment of the embodiment of the present specification, a regulation node may be set to regulate according to whether a sewage treatment plant has spare capacity, for example, when the sewage treatment plant has no spare capacity, if the sewage output by the sewage storage facility directly enters the confluence pipe, the treated water is directly conveyed to a sewage treatment plant in the non-rainfall period or is mixed with rainwater and then conveyed to the sewage treatment plant in the rainfall period, so that the treated water entering the sewage treatment plant is excessive to reach the upper treatment limit of the sewage treatment plant, overflow is easy to occur, therefore, the sewage output by the sewage housing facility 20 can be regulated by the sewage regulating and storing device provided in the embodiment of the present specification, when the sewage treatment plant has a surplus capacity, the sewage storage can be stopped, that is, the sewage output from the sewage storage facility 20 is directly input into the confluence pipe 30.

It should be noted that the above description of the four application environments of the sewage storage device in the drainage system provided in the embodiment of the present disclosure is only an example of the practical application of the sewage storage device, and is not a limitation to the use, and those skilled in the art can also understand that the sewage storage device provided in the embodiment of the present disclosure may also be applied to other application environments that need to store and store sewage, or a combination of the three application environments, besides the above three application environments, in the drainage system, including other application scenarios that can also be applied to a specific application scenario other than the drainage system, and the present disclosure is not limited thereto. In other words, any application environment or application scenario that can store and adjust the sewage is suitable for the present invention and is within the scope of the present invention.

As an embodiment of the sewage inflow collecting pipe 30 used in the cut-off portion 10 according to the embodiment of the present specification, the sewage storage apparatus further includes: a first switch 121 disposed at the first cutoff outlet 103; when the first switch 121 is turned on, the sewage flows into the flow combining pipe 30 sequentially through the water outlet of the sewage storage facility 20, the first cut-off outlet 103, and the water inlet of the flow combining pipe 30, and/or the sewage flows into the flow combining pipe 30 sequentially through the buffer port 402, the second cut-off outlet 104, and the water inlet of the flow combining pipe 30 from the buffer part 40; when the first switch is closed, the sewage flows into the buffer part through the water outlet of the sewage containing facility, the second cut-off outlet and the buffer port in sequence and is stored.

The first switch 121 may be any one of a gate, a weir gate, a valve, a gate valve, an air bag, an air pillow, a pipe clamp valve, or a flexible cut-off device, and the present invention is not limited thereto, and any mechanism capable of turning on or off the inlet and the outlet is suitable for the present invention and is within the protection scope of the present invention.

As an embodiment of the buffer part 40 in the embodiment of the present specification, the buffer part 40 may be

One end of the cylindrical pipeline is open, the other end of the cylindrical pipeline is of a sealing structure, the cylindrical pipeline is transversely arranged relative to the cut-off part 40, and the opening of the cylindrical pipeline is the buffer port 402.

It should be noted that, in the embodiment of the present invention, in order to reduce the cost and improve the applicability of the present invention, the sewage storage device is characterized in that the buffer portion 40 in the pipe structure is installed in a horizontal direction, and the bottom level of the buffer port 402 is designed to be equal to or higher than the bottom level of the first cut-off outlet 103, so that when the opening end thereof is used as the buffer port 402, the sewage can be automatically discharged under the self-gravity when the sewage discharge is required.

Furthermore, in order to improve the discharging smoothness by self-gravity, in the embodiment of the present specification, the conduits may be distributed obliquely with respect to the intercepting part 10, that is, the vertical height of the conduits with the second intercepting outlet 104 is gradually reduced from the opposite end of the buffer port 402 to the end of the buffer port 402. It will be appreciated that the end of the conduit at the buffer port 402 is lower than the opposite end.

As another embodiment of the buffer portion 40 in the embodiment of the present specification, please refer to fig. 3-4, which intersect with the previous embodiment, in order to enable the buffer portion 40 to store and store more sewage and avoid occupying a space area due to too long pipes arranged transversely, in the embodiment of the present specification, for another embodiment of the buffer portion 40, the buffer portion 40 may be a square tank body with an opening structure at one end, such as a structure similar to a water reservoir or a well with a large water storage capacity; at this time, the bottom level of the buffer port 402 is still higher than the bottom level of the first cut-off outlet 103, and the bottom level of the square tank is lower than the bottom level of the first cut-off outlet 103, so that the underground space is effectively utilized, the sewage flows into the storage space 401 of the buffer part 40 under the action of the gravity of the sewage, and the sewage can be discharged by the pump at this time, that is, the device further comprises: the water pump 50 is arranged in the buffer part 40 and is connected with the water inlet of the delivery pipe 60, the water outlet of the delivery pipe 60 is arranged in the cut-off part 10, so that when sewage in the storage space 401 needs to be discharged, the sewage is pumped into the cut-off part 40.

As another embodiment of the buffering portion 40 in the embodiment of the present disclosure, in order to shorten the conveying distance of the conveying pipe 60 and further reduce the operation cost, please refer to fig. 5, a concave table 70 may be further added in the apparatus, and the concave table 70 is fixed at the buffering port 40, so that the water outlet of the conveying pipe 60 may be placed on the concave table 70, so as to pump the sewage stored in the buffering portion 40 to the concave table 70, and the sewage sequentially flows into the intercepting portion 10 through the buffering port 40 and the second intercepting outlet 104 under the action of the gravity of the sewage, so as to further reduce the pipeline laying cost while storing and storing more sewage and avoiding the occupied space area due to the long length of the transversely arranged pipeline.

As a further embodiment of the buffer part 40 in the embodiment of the present specification, the buffer part 40 may also be a square tank body having an opening structure at one end, but at this time, the longitudinal height of the square tank body is smaller than the lateral width of the square tank body, and the square tank body may be immediately flat, the longitudinal height of the square tank body is reduced, and the storage and distribution may be performed by fully utilizing the lateral space, the opening structure of the square tank body is the buffer port 402, and the same bottom elevation of the square tank body is equal to or higher than the bottom elevation of the first cut-off outlet 103.

The present invention is not limited to the above-described structure, and the structure of the buffer portion provided in the embodiments of the present invention is specifically the above-described structure. In other words, any structure of the buffer part 40, or other simply changed structures, is also within the scope of the present invention, as long as the buffer part 40 can store the entered sewage in a time-limited manner and discharge the sewage when the sewage is required.

Further, in the embodiment of the present specification, for the buffer portion 40 having the water pump 50 in the storage space 401, in order to prevent the water pump 50 from being unable to operate normally due to blockage or the like, the top of the buffer portion 40 is provided with 1 or more access holes 80 and the number of the covers 90 corresponding to the number of the access holes, and the covers 90 are detachably connected to the access holes 80.

Specifically, when the number of the access ports 80 and the number of the covers 90 are both 1, 1 access port 80 is arranged right above the water pump 50; when the access hole 80 with the quantity of closing cap 90 all is a plurality of, then each the closing cap 90 correspond with one the access hole 80 is detachable to be connected, and is a plurality of the access hole 80 is in the equidistant distribution in top of buffer portion 40, and at least one the access hole 80 is seted up directly over water pump 50.

The removable connection between the access opening 80 and the cover 90 may be a bolt connection or a snap connection as one or more embodiments of the present disclosure, and the present disclosure is not limited thereto.

As one or more implementations of the embodiments herein, the cutout 10 is one of a diverter well, a shut-off well, a dump well, a buffer corridor, or an installation well.

Further, as a real-time manner for controlling the first switch 121 to open and close in the embodiment of the present specification, the sewage storage apparatus may further include:

the first liquid level meter is arranged in the buffer part 10 and used for monitoring the liquid level data of the sewage in the buffer part 10;

the controller is respectively communicated with the first switch 121 and the first liquid level meter to receive liquid level data and switch the on and off of the first switch 121 according to the liquid level data; wherein the controller comprises a memory and a processor, the memory storing a computer program that when executed by the processor is capable of performing the steps of:

comparing the liquid level data with a standard liquid level interval, wherein the standard liquid level interval comprises an interval minimum liquid level value and an interval maximum liquid level value;

if the liquid level data is less than or equal to the minimum liquid level value of the interval, controlling the first switch to be closed;

and if the liquid level data is greater than or equal to the maximum interval liquid level value, controlling the first switch to be turned on.

In this embodiment, the cut-off inlet 102 of the cut-off part 10 is communicated with the water outlet of the sewage containing facility 20 in the unit area, so that the sewage in the sewage containing facility 20 enters the cut-off part 10 before entering the confluence pipe, and is communicated with the second cut-off outlet 104 through the buffer port 402 of the buffer part 40 to realize the communication between the cut-off part 10 and the buffer part 40, so that when the liquid level is lower than the minimum value of the threshold value of the interval, the storage space of the buffer part 10 is large at the moment, in order to reduce the delivery pressure of the confluence pipe, the treatment pressure of the sewage treatment facility and the like, the sewage output by the sewage containing facility 20 only needs to flow into the buffer part 40 through the second cut-off outlet 104 and the buffer port 402 in order to store the sewage when the liquid level of the buffer part 40 is relatively low, and when the liquid level is higher than the maximum value of the threshold value of the interval, at this time, it is indicated that the sewage stored in the buffer portion 10 is about to overflow, and at this time, the sewage stored in the buffer portion 40 only needs to flow into the confluence pipe 30 through the buffer port 402, the second interception outlet 104 and the first interception outlet 103 in sequence, so that the technical defects of the confluence pipe, such as excessive treatment pressure of a sewage treatment facility, resource waste and the like, are effectively reduced, and the overflow of the sewage in the buffer portion 40 can be effectively prevented, and the buffer portion has the characteristic of high safety.

Further, as another real-time mode for controlling the first switch 121 to open and close in the embodiment of the present specification, the sewage storage apparatus further includes:

the first rain gauge is communicated with the controller and is used for monitoring whether the current rainfall period is the rainfall period;

the program stored in the memory can further realize the following steps when executed by the processor:

if the current state is the rainfall state, controlling the first switch to be closed;

and if the current state is a non-rainfall state, controlling the first switch to be turned on.

In this embodiment, the interception inlet 102 of the interception part 10 is communicated with the water outlet of the sewage containing facility 20 in the unit area, so that the sewage in the sewage containing facility 20 firstly enters the interception part 10 before entering the confluence pipe, and is communicated with the second interception outlet 104 through the buffer port 402 of the buffer part 40 to realize the communication between the interception part 10 and the buffer part 40, thus when the sewage needs to be regulated and stored in rainfall, the sewage output by the sewage containing facility 20 only needs to sequentially flow into the buffer part 40 through the second interception outlet 104 and the buffer port 402 to be stored, so that only rainwater exists in the confluence pipe 30, and when the sewage needs to be output in sunny days, the sewage stored in the buffer part 40 only needs to sequentially flow into the confluence pipe 30 through the buffer port 402, the second interception outlet 104 and the first interception outlet 103, thereby effectively avoiding the existing flow pipe in the structural design that the sewage input by the sewage containing facility 20 directly enters the confluence pipe to be output in the prior art The device has the advantages that the device is easy to cause serious pollution to natural water bodies in rainy days, or has the technical defects of overlarge treatment pressure of sewage treatment facilities, resource waste and the like, can achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenience in operation and wide applicability.

Further, as still another real-time mode for controlling the first switch 121 to open and close in the embodiment of the present specification, the sewage storage apparatus further includes:

the second rain gauge is communicated with the controller and used for monitoring the rainfall when the current rainfall is in a rainfall period;

the program stored in the memory can further realize the following steps when executed by the processor:

if the current rainfall is smaller than a preset rainfall basic threshold value, controlling the first switch to be turned on;

if the current rainfall is larger than a preset rainfall basic threshold value, controlling the first switch to be closed;

in this embodiment, the interception inlet 102 of the interception part 10 is communicated with the water outlet of the sewage containing facility 20 in the unit area, so that the sewage in the sewage containing facility 20 enters the interception part 10 before entering the merging pipe, and is communicated with the second interception outlet 104 through the buffer port 402 of the buffer part 40 to realize the communication between the interception part 10 and the buffer part 40, thus when the rainfall is large and the sewage needs to be regulated, the sewage output by the sewage containing facility 20 only needs to flow into the buffer part 40 through the second interception outlet 104 and the buffer port 402 in sequence to be stored, so that only the rainwater with large rainfall exists in the merging pipe 30, and when the rainfall is small and the sewage needs to be output, the sewage stored in the buffer part 40 only needs to flow into the merging pipe 30 through the buffer port 402, the second interception outlet 104 and the first interception outlet 103 in sequence, the technical defects that the sewage input by the sewage containing facility 20 directly enters the confluence pipe to be output by a structural design, when the rainfall is large, the natural water body is extremely easy to cause serious pollution, or the sewage treatment facility has overlarge treatment pressure, resource waste and the like are effectively avoided, the technical effect of regulating and storing the sewage when the sewage is not required to be discharged can be achieved, and the sewage treatment device has the characteristics of simple structure, convenience in operation and wide applicability.

Further, as still another real-time mode for controlling the first switch 121 to open and close in the embodiment of the present specification, the sewage storage apparatus may further include:

the second liquid level meter is arranged in the sewage treatment plant and is used for monitoring the liquid level data of the sewage in the sewage treatment plant;

the controller is respectively communicated with the first switch 121 and the liquid level meter to receive liquid level data and switch the on and off of the first switch 121 according to the liquid level data; wherein the controller comprises a memory and a processor, the memory storing a computer program that when executed by the processor is capable of performing the steps of:

comparing the liquid level data with a standard liquid level interval, wherein the standard liquid level interval comprises an interval minimum liquid level value and an interval maximum liquid level value;

if the liquid level data is less than or equal to the minimum liquid level value of the interval, controlling the first switch to be closed;

and if the liquid level data is greater than or equal to the maximum interval liquid level value, controlling the first switch to be turned on.

In this embodiment, the intercepting inlet 102 of the intercepting part 10 is communicated with the water outlet of the sewage containing facility 20 in the unit area, so that the sewage in the sewage containing facility 20 firstly enters the intercepting part 10 before entering the confluence pipe, and is communicated with the second intercepting outlet 104 through the buffer port 402 of the buffer part 40 to realize the communication between the intercepting part 10 and the buffer part 40, thus when the liquid level is lower than the minimum value of the threshold value of the interval, the surplus treatment capacity of the sewage treatment plant is shown at the moment, and at the moment, the sewage stored in the buffer part 40 only needs to flow into the confluence pipe 30 through the buffer port 402, the second intercepting outlet 104 and the first intercepting outlet 103 in sequence, so that the treatment capacity of the sewage treatment plant is reasonably and effectively utilized, and the technical effect of timely discharging the sewage is realized. When the liquid level is higher than the maximum value of the threshold value of the interval, the processing capacity of the sewage treatment plant reaches the upper limit at this time, and more sewage cannot be treated, and in order to reduce the treatment pressure of the sewage treatment facility, the sewage output by the sewage storage facility 20 only needs to flow into the buffer part 40 through the second cut-off outlet 104 and the buffer port 402 in sequence for storage, so that the safety is high.

It should be noted that the above description of the four embodiments of the sewage storage device in the drainage system provided in the embodiments of the present disclosure is only an example of the practical application of the sewage storage device, and is not a limitation to the application, and those skilled in the art can also understand that the sewage storage device provided in the embodiments of the present disclosure can also be applied to other embodiments that need to store and store sewage or a combination of the four embodiments in addition to the four embodiments in the drainage system, and the present disclosure is not limited thereto. In other words, any embodiment that can achieve the technical effects of storing or discharging the sewage and regulating the sewage is applicable to the present invention and is within the protection scope of the present invention.

The skilled person in the art can understand that, the invention is not limited by setting the size of the rainfall basic threshold and the size of the standard liquid level interval, and the rainfall parameter threshold and the standard liquid level interval can be set according to the actual operation requirement. Similarly, monitoring of a rainfall period and a non-rainfall period and monitoring of rainfall capacity can be performed by two rain gauges, monitoring of a rainfall period and a non-rainfall period and monitoring of rainfall capacity can be performed by one rainfall monitor with two monitoring functions, monitoring of liquid levels can be performed by two liquid level meters, and monitoring of liquid levels of a buffer tank and a sewage treatment plant can be performed by one liquid level monitor with two liquid level monitoring functions.

Example two

With reference to fig. 6-7, another sewage storage device based on gravity water supply is provided in the second embodiment of the present disclosure.

In the second embodiment, the bottom level of the portion where the buffering portion 40 communicates with the cut-off portion 10 and the bottom level of the portion where the cut-off portion 10 communicates with the junction pipe are not limited, and the second switch 500 is provided at the second cut-off outlet 104.

Specifically, in order to prevent the sewage or the rainwater or the mixed water of the sewage and the rainwater from flowing backward into the buffer portion 40 and causing the sewage or the rainwater or the mixed water of the sewage and the rainwater in the cut-off portion 10 to be unable to be discharged normally or occupy unnecessary storage resources in the buffer portion 40 in the process of being normally discharged from the sewage input unit 20 to the confluence pipe 30 through the cut-off portion 10, the second switch 500 is provided at the second cut-off outlet 104 and is closed, for example, closed in fine days, and is opened, for example, opened in rainy days, when the water needs to be stored in the buffer portion 40.

It can be understood by those skilled in the art that, in the second embodiment of the present disclosure, in order to avoid the buffer portion 40 from flowing backward, causing the sewage or the rainwater or the mixed water of the sewage and the rainwater to be unable to be discharged normally, or occupying unnecessary storage resources in the buffer portion 40, the modified solution of providing the second switch 500 at the second intercepting outlet 104 is also applicable to the various structures (such as any one of the structures shown in fig. 1-5) in the first embodiment, and when the second switch 500 is provided at the second intercepting outlet 104, the bottom elevation at the position where the buffer portion 40 communicates with the intercepting portion 10 and the bottom elevation at the position where the intercepting portion 10 communicates with the merging pipe may not be limited, and the parts not described in detail in the second embodiment, such as the rest structural relationship, the working principle, etc., due to the structural relationship and the working principle communication with those in the first embodiment, it can be seen from the description in the first embodiment, the second embodiment is not described in detail.

It should be noted that, after the second switch 500 is provided at the second intercepting outlet 104, when the sewage or the rainwater or the mixed water of the sewage and the rainwater stored in the buffering portion 40 shown in fig. 7 is discharged to the intercepting portion 10 by means of the pump row, the second switch 500 may be turned off; however, the second switch 500 may be turned on when the sewage or the rainwater or the mixed water of the sewage and the rainwater stored in the buffering portion 40 shown in fig. 6 is discharged to the cut-off portion 10 by the gravity drainage method, which is not specifically limited in the second embodiment, and in other words, the use mode of turning on or off the second switch 500 is not limited in the second embodiment, and the present invention is applicable to any technical scheme as long as the sewage or the rainwater or the mixed water of the sewage and the rainwater stored in the buffering portion 40 can be discharged according to actual requirements.

Similarly, the second switch 500 may be any one of a gate, a weir gate, a valve, a gate valve, an air bag, an air pillow, a pipe clamp valve, or a flexible cut-off device, and the present invention is not limited thereto, and any mechanism capable of turning on or off the inlet and the outlet is suitable for the present invention and is within the protection scope of the present invention.

Further, referring to fig. 8-9, for the sewage input unit 20 in the first or second embodiment, similarly, when the water in the buffering portion 40 is drained to the intercepting portion 10, in order to prevent the water drained to the intercepting portion 10 from flowing backward into the sewage input unit 20 and being unable to be drained normally, the third switch 600 is disposed at the water outlet of the sewage input unit 20, and is turned off, if the water in the buffering portion 40 is required to be drained, the third switch 600 is turned off, and when the buffering portion 40 is required to be regulated, or the sewage or the rainwater or the mixed water of the sewage and the rainwater is normally drained from the sewage input unit 20 to the merging pipe 30 through the intercepting portion 10, the third switch 600 is turned on.

Similarly, the third switch 600 may be any one of a gate, a weir gate, a valve, a gate valve, an airbag, an air pillow, a pipe clamp valve, or a flexible cut-off device, and the present invention is not limited thereto, and any mechanism capable of turning on or off the inlet and the outlet is suitable for the present invention and is within the protection scope of the present invention.

Of course, as another implementation manner, a fixed weir 601 may be further disposed in the cut-off portion 10 near the water outlet of the sewage input unit 20, and a top elevation of the fixed weir 601 is higher than a bottom elevation of the water outlet of the sewage input unit 20, so that the fixed weir 601 replaces the third switch 600 to prevent the water drained into the cut-off portion 10 from flowing backward into the sewage input unit 20 and being unable to be drained normally. For the fixed weir 601, any one of the prior art that can realize a function of "blocking" water flow may be used, and the present invention is not limited thereto.

EXAMPLE III

The same inventive concept as the first and second embodiments, the third embodiment of the present invention further provides a sewage storage method based on gravity inflow, which is applied to the apparatus described in the first or second embodiment, and the method includes:

receiving a recognition instruction whether the buffer part needs to discharge water, if so, controlling the first switch to be opened, so that the sewage in the buffer part flows into the cut-off part under the action of gravity and is discharged by the confluence pipe;

and receiving an identification instruction whether the buffer part needs to store water or not, and if so, controlling the first switch to be closed so that the sewage in the intercepting part flows into the buffer part under the action of gravity.

As a first application environment of the method, it is possible to output a command for identifying whether or not water is required to be discharged or water is discharged according to the first rain gauge in the first embodiment, and then control the first switch by a controller in communication with the first rain gauge.

Specifically, when the first rain gauge monitors that the current time is a rainfall state, an identification instruction that the buffer portion needs to store water is sent to the controller, that is, the controller controls the first switch to be turned off, and at this time, the sewage output by the sewage storage facility 20 flows into the buffer portion 40 through the second intercepting outlet 104 and the buffer port 402 in sequence to be stored, so that only rainwater exists in the confluence pipe 30. When the first rain gauge monitors that the current period is in a non-rainfall state, an identification instruction that the buffer part needs to discharge water is sent to the controller, namely the first switch is controlled to be opened by the controller, at the moment, the sewage stored in the buffer part 40 flows into the flow-merging pipe 30 through the buffer port 402, the second flow-intercepting outlet 104 and the first flow-intercepting outlet 103 in sequence, so that the technical defects that the sewage input by the sewage containing facility 20 in the prior art directly enters the flow-merging pipe to be output easily causes serious pollution to natural water in rainy days, or the sewage treatment facility has overlarge treatment pressure, resource waste and the like are effectively avoided, the technical effect of regulating and storing the sewage when the sewage is not required to be discharged is achieved, and the rain gauge has the characteristics of simplicity in control, convenience in operation and wide applicability.

As a second application environment of the method, it is possible to output a command for identifying whether or not water is required to be discharged or water is discharged according to the second rain gauge in the first embodiment, and then control of the first switch is performed by the controller communicating with the second rain gauge.

Specifically, when the first rain gauge monitors that the rainfall is large in the current period, an identification instruction that the buffer part needs to store water is sent to the controller, that is, the first switch is controlled to be turned off by the controller, at this time, the sewage output by the sewage containing facility 20 flows into the buffer part 40 through the second intercepting outlet 104 and the buffer port 402 in sequence to be stored, so that only the rainwater with the large rainfall exists in the confluence pipe 30, and when the rainfall is small in the current period monitored by the second rain gauge, an identification instruction that the buffer part needs to discharge water is sent to the controller, that is, the first switch is controlled to be turned on by the controller, at this time, the sewage stored in the buffer part 40 flows into the confluence pipe 30 through the buffer port 402, the second intercepting outlet 104 and the first intercepting outlet 103 in sequence, so that the problem that the serious natural water body is easily caused by the structural design that the sewage input by the sewage containing facility 20 directly enters the confluence pipe to be output when the rainfall is large is effectively avoided The sewage treatment system has the advantages of being simple in structure, convenient to operate and wide in applicability.

As a third application environment of the method, it is possible to output an instruction for identifying whether water needs to be discharged or water is discharged according to the first liquid level meter in the first embodiment, and then the controller in communication with the first liquid level meter performs control of the first switch.

Specifically, when the first liquid level meter monitors that the buffer part has a storage space at the current time, an identification instruction that the buffer part needs to store water is sent to the controller, that is, the first switch is controlled to be turned off by the controller, at this time, the sewage output by the sewage containing facility 20 flows into the buffer part 40 through the second intercepting outlet 104 and the buffer port 402 in sequence to be stored, so that only rainwater with a relatively large rainfall amount exists in the confluence pipe 30, and when the first liquid level meter monitors that the buffer part has no storage space at the current time, an identification instruction that the buffer part needs to discharge water is sent to the controller, that is, the first switch is controlled to be turned on by the controller, at this time, the sewage stored in the buffer part 40 flows into the confluence pipe 30 through the buffer port 402, the second intercepting outlet 104 and the first intercepting outlet 103 in sequence, so that the overflow of the sewage in the buffer part is effectively prevented.

As a fourth application environment of the method, it is possible to output an instruction for identifying whether water needs to be discharged or water is discharged according to the second liquid level meter in the first embodiment, and then the controller in communication with the second liquid level meter performs control of the first switch.

Specifically, when the second liquid level meter monitors that the sewage treatment plant has a water containing space in the current period, the second liquid level meter sends a recognition instruction that the buffer part needs to discharge water to the controller, namely the first switch is controlled to be turned on by the controller, and at the moment, only the sewage stored in the buffer part 40 needs to sequentially flow into the confluence pipe 30 through the buffer port 402, the second interception outlet 104 and the first interception outlet 103, so that the treatment capacity of the sewage treatment plant is reasonably and effectively utilized, and the technical effect of timely discharging the sewage is realized. When the second level meter monitors that the sewage treatment plant does not have a water containing space in the current period, the second level meter sends an identification instruction that the buffer part needs to store water to the controller, namely the controller controls the first switch to be closed, and the sewage output by the sewage containing facility 20 sequentially passes through the second intercepting outlet 104 and the buffer port 402 and flows into the buffer part 40 for storage, so that the safety is high.

It should be noted that, the above description of the four embodiments of the sewage storage method provided in the example of the present specification in the drainage system is only an example when the sewage storage method is actually applied, and is not a limitation to use, and those skilled in the art can also understand that the sewage storage method provided in the example of the present specification can also be applied to other embodiments that need to store and store sewage in the drainage system besides the above four embodiments, or a combination of the above four embodiments, and the present invention is not limited thereto. In other words, any embodiment that can achieve the technical effects of storing or discharging the sewage and regulating the sewage is applicable to the present invention and is within the protection scope of the present invention.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (12)

1. A gravity feed based sewage storage device for a drainage system, the drainage system comprising a sewage input unit (20) for receiving unit area drained sewage, and a manifold (30) for draining sewage to municipal pipes; characterized in that the device comprises:

the interception part (10) is internally provided with a containing space (101) for containing sewage and is respectively communicated with the sewage input unit (20) and the confluence pipe (30);

the buffer part (40) is internally provided with a storage space (401) for storing sewage and is communicated with the interception part (10);

wherein, when the buffer part (40) is filled with water, the sewage conveyed into the accommodating space (101) by the sewage input unit (20) flows into the storage space (401) under the action of gravity; when the buffer part (40) discharges water, the sewage in the storage space (401) flows into the accommodating space (101) under the action of self gravity or under the driving of power and is discharged by the confluence pipe.

2. A gravity feed based sewage storage device according to claim 1, wherein the cut-off portion (10) comprises:

the intercepting inlet (102) is communicated with the water outlet of the sewage input unit (20);

the first intercepting outlet (103) and the second intercepting outlet (104), the second intercepting outlet (104) is communicated with the buffer part (40), the first intercepting outlet (103) is communicated with the confluence pipe (30), and a second switch (500) is arranged at the second intercepting outlet (104).

3. The sewage storage device based on gravity feed as claimed in claim 1, wherein:

the bottom elevation of the communicated part of the buffering part (40) and the interception part (10) is equal to or higher than the bottom elevation of the communicated part of the interception part (10) and the confluence pipe;

the cutout (10) comprises:

the intercepting inlet (102) is communicated with the water outlet of the sewage input unit (20);

a first shut-off outlet (103) and a second shut-off outlet (104), the second shut-off outlet (104) being in communication with the relief (40), the second shut-off outlet (104) having a base level equal to or higher than the base level of the first shut-off outlet (103).

4. A gravity feed water based sewage storage device according to claim 2 or 3, wherein the buffer (40) comprises:

a buffer port (402) in communication with the second shut-off outlet (104), a bottom elevation of the buffer port (402) being equal to a bottom elevation of the second shut-off outlet (104);

buffer portion (40) are intake when, sewage in cut-off portion (10) loops through under the action of gravity the second export (104) that dams, buffer mouth (402) flow in buffer portion (40) during buffer portion (40) are gone out water, sewage in buffer portion (40) loops through under the action of gravity or under power drive buffer mouth (402), second export (104) that dams flow in cut-off portion (10).

5. The gravity feed based sewage storage device of claim 4, further comprising:

a first switch (121) provided at the first shut-off outlet (103);

when the first switch (121) is turned on, the sewage flows into the junction pipe (30) through the water outlet of the sewage input unit (20), the first cut-off outlet (103) and the water inlet of the junction pipe (30) in sequence, and/or the sewage flows into the junction pipe (30) from the buffer part (40) through the buffer port (402), the second cut-off outlet (104), the first cut-off outlet (103) and the water inlet of the junction pipe (30) in sequence under the action of gravity or under the driving of power;

when the first switch is closed, the sewage flows into the buffer part (40) for storage through the water outlet of the sewage input unit (20), the second intercepting outlet (104) and the buffer port (402) in sequence under the action of gravity.

6. The gravity feed based sewage storage device of claim 5, wherein:

when the buffer part (40) is drained and the sewage in the storage space (401) flows into the accommodating space (101) under the action of self gravity,

the buffer part (40) is a cylindrical pipeline with an opening at one end and a sealing structure at the other end, the pipeline is transversely arranged relative to the cut-off part (40), and the opening of the pipeline is the buffer opening (402).

7. The sewage storage device based on gravity feed of claim 6, wherein:

the conduits are distributed obliquely with respect to the shut-off portion (10) and the vertical height of the conduits and of the second shut-off outlet (104) decreases progressively from the opposite end of the buffer opening (402) towards the end of the buffer opening (402).

8. The sewage storage device based on gravity feed as claimed in claim 4, wherein:

when the buffer part (40) is drained and the sewage in the storage space (401) flows into the accommodating space (101) under the action of self gravity,

buffer portion (40) are the square cell body that one end was equipped with open structure, just the vertical height of square cell body is less than the horizontal width of square cell body, the open structure of square cell body does buffer mouth (402), the end elevation of square cell body is equal to or is higher than the end elevation of first cut-off export (103).

9. The sewage storage device based on gravity feed as claimed in claim 4, wherein:

when the buffer part (40) is used for discharging water and the sewage in the storage space (401) flows into the accommodating space (101) under the action of power driving,

the buffer part (40) is a square tank body with an opening structure at one end, the opening structure of the square tank body is the buffer opening (402), and the bottom elevation of the square tank body is lower than that of the first cut-off outlet (103);

the sewage regulation and storage device further comprises: water pump (50) and conveyer pipe (60), water pump (50) set up in buffer portion (40), and with the water inlet of conveyer pipe (60) is connected, the delivery port of conveyer pipe (60) is arranged in cut-off portion (10), with when buffer portion (40) goes out water, with save in buffer portion (40) sewage pump is pumped to cut-off portion (40).

10. The gravity feed based sewage storage device of claim 9, further comprising:

concave station (70), fix buffer mouth (40) department, the delivery port of conveyer pipe (60) is arranged in on concave station (70), in order when buffer portion (40) goes out water, with save in buffer portion (40) sewage pump to concave station (70) department, and under the action of self gravity sewage passes through in proper order buffer mouth (40), second outlet (104) that dams flows into in the damming portion (10).

11. A gravity feed based sewage storage device as claimed in any one of claims 1 to 3 wherein:

a third switch (600) is arranged at a water outlet of the sewage input unit (20);

alternatively, the first and second electrodes may be,

the utility model discloses a sewage treatment device, including cut-off portion (10), sewage input unit (20) are close to in the cut-off portion (10) the delivery port department of sewage input unit (20), are provided with fixed weir (601), the top elevation of fixed weir (601) is higher than the end elevation of the delivery port of sewage input unit (20).

12. A sewage storage method based on gravity feed, which is applied to the device of any one of the claims 1 to 10, and is characterized in that the method comprises the following steps:

receiving a recognition instruction whether the buffer part needs to discharge water, if so, controlling a first switch to be switched on, so that the sewage in the buffer part flows into the cut-off part under the action of gravity and is discharged by the confluence pipe;

and receiving an identification instruction whether the buffer part needs to store water or not, and if so, controlling the first switch to be closed so that the sewage in the intercepting part flows into the buffer part under the action of gravity.

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