CN105569163B - Region burst rain processing system based on mixed flow tubulation net - Google Patents

Abstract

The invention discloses a kind of burst rain processing system based on mixed flow tubulation net, municipal water treatment systems are divided into the water body that several independent areas are 0.2~4 square kilometre and handle section, and the less rainwater treatment facility of independent scale is set in water body processing section, each rainwater treatment facility only needs to handle the rainwater of the rainwater branch pipe outflow corresponding to water body processing section and the sewage of branch sewer outflow, because water body processing section area is smaller, time difference in each section apart from rainwater conflux to the rainwater treatment facility of rainwater treatment facility far point and near point is smaller, avoid pipe network far point and that near point concentration time difference is caused is first the problem of include a large amount of later stage rainwater in the rain, substantially reduce the degree of mixing of first rain rainwater and later stage rainwater, improve the obvious processing effect of rainwater, effectively continue the efficient purpose to filtration, purification in mixed flow tubing giving sufficient strength to reach.

Description

Regional Segmented Rainwater Treatment System Based on Mixed-flow Pipe Network

technical field

The invention relates to the technical field of rainwater treatment, in particular to a regional fragmented rainwater treatment system based on a mixed-flow pipe network.

Background technique

Referring to Figure 1, the traditional mixed-flow pipe network rainwater treatment system includes a water inlet branch system composed of several rainwater branch pipes 1 and sewage branch pipes 2 connected to each other. Rainwater flows into the rainwater main pipe 3 through each rainwater branch pipe 1, and the sewage It flows into the sewage main pipe 4 through each sewage branch pipe 2, and finally collects and treats it in the abandoned flow well 5 through the rainwater main pipe 3 and the sewage main pipe 4. After being treated by the abandoned flow well 5, the qualified water enters the natural water body 6 for further processing Use, unqualified water enters the sewage treatment plant 7 for comprehensive treatment again. The use of the above-mentioned treatment system requires the construction of large-scale jettison wells to completely collect and treat water bodies, and because the catchment area is too large, there is a time difference between the distant water body and the nearby water body flowing into the jettison well. When arriving at the abandonment well, the water body flowing from the nearby water body to the abandonment well is relatively clean. As a result, the water body collected by the abandoned flow well is essentially a combination of relatively clean initial water body and a large amount of mixed water body, which leads to unsatisfactory water treatment effect and cannot effectively, continuously and efficiently filter and purify the urban mixed flow system pipeline.

Although the existing urban mixed-flow pipe network rainwater treatment system is also equipped with multiple abandonment wells, the setting of the abandonment wells did not take into account the time difference between the confluence of the distant water body and the incoming water body, resulting in unsatisfactory water treatment effects , unable to filter and purify urban mixed-flow pipelines effectively, continuously and efficiently.

Contents of the invention

The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology, and to provide a regional fragmented rainwater treatment system based on mixed-flow pipe network, so as to effectively, continuously and efficiently filter and purify urban combined pipes.

The technical solution of the present invention is: a regional fragmented rainwater treatment system based on a mixed-flow pipe network, including a sewage main pipe, a rainwater branch pipe, and a sewage branch pipe. The above-mentioned area is divided into a plurality of grid-shaped rainwater treatment areas according to 0.2-4 square kilometers, and each rainwater treatment area is provided with rainwater treatment facilities, and the rainwater treatment facilities have water inlets, natural water outlets and sewage outlets, The rainwater branch pipes and sewage branch pipes in the rainwater treatment area are collected to the rainwater treatment facility through the water inlet, the natural water outlet is connected to the natural water body, and the sewage outlet is connected to the sewage main pipe.

Further, the rainwater treatment system is one or a combination of abandonment wells, interception wells, and storage tanks.

Further, the structures of the rainwater treatment facilities in at least two rainwater treatment areas in the whole area are different.

Preferably, the rainwater treatment facility includes a buffer pool and an emergency flood discharge channel arranged sequentially on the same side of the buffer pool, an initial rain storage tank, and an on-line treatment storage tank, and the buffer pool is set to correspond to the buffer pool. The first water inlet, the second water inlet and the third water inlet connected with the emergency flood discharge channel, the primary rainwater storage tank and the online treatment storage tank, and the lowest water level line of the third water inlet is the same as that of the second water inlet The highest water level of the water inlet is equal; the highest water level of the third water inlet is equal to the lowest water level of the first water inlet; the emergency flood discharge channel has a natural water outlet connected to the natural water body, The on-line treatment and storage tank is provided with an overflow port communicating with the emergency flood discharge channel.

Further, the buffer pool has a side wall shared with the emergency flood discharge channel, the primary rain storage tank and the online treatment storage tank, and the side wall of the buffer pool is provided with a pool body, and the The pool consists of the side wall, two first and second walls perpendicular to the side wall, and a third wall parallel to the side wall. A fourth wall parallel to the side wall is provided, there is a distance between one end of the fourth wall and the first wall, and the other end of the fourth wall is separated from the second wall connection, two fifth and sixth walls arranged in parallel are arranged between the fourth wall and the side wall, and the emergency flood discharge channel is the side wall, the first wall body, the third wall, the second wall and the fourth wall, the third wall of the emergency flood discharge channel is provided with a natural water outlet; the initial rain storage tank is the side wall The area enclosed by the wall, the fifth wall, the fourth wall and the sixth wall, the online processing reservoir is the side wall, the sixth wall, the fourth wall and the second wall The area surrounded by the body, the fourth wall of the online treatment storage tank is provided with an overflow port.

Further, the bottom inner wall of the buffer tank is a slope inclined toward the water outlet; the second water inlet and the third water inlet are provided with self-cleaning horizontal grilles.

Further, a first self-opening weir door matched with the first water inlet is provided, and the bottom inner wall of the emergency flood discharge channel is a slope inclined to the natural water outlet.

Further, the second water inlet is provided with a second self-opening weir door matched with it; the primary rain storage tank is provided with a collector lower than the bottom surface of the primary rain storage tank near the second water inlet. For the pool, the inner wall of the bottom of the primary rain storage tank and the sump is provided with a slope inclined to the second water inlet; the primary rain storage tank is provided with an intelligent flushing device.

Further, the primary rain storage tank and the online treatment storage tank are connected through a gate, and the gate is arranged on the side wall close to the buffer tank; the online treatment storage tank is close to the third water inlet A sewage corridor lower than the bottom surface of the on-line treatment and storage tank is provided, and the bottom of the on-line treatment and storage tank is provided with a baffle with an open upper end, and the baffle divides the on-line treatment and storage tank into two And the filter section and the discharge section that are connected to each other, the baffle is provided with a flapper type flushing door, the filter section is provided with a hydraulic particle separator, and the bottom inner wall of the filter section and the sewage corridor is provided with a Three water inlets have inclined slopes, and the overflow port is arranged on the end face of the discharge section.

Preferably, the rainwater treatment facility is an abandonment well, and the abandonment well includes a well body provided with three mutually independent settling chambers, a floating tank chamber and a floating ball chamber, and the settling chamber is connected to the upstream sewage main pipe The water inlet pipe of the floating chamber and the floating ball chamber are jointly connected with an outlet pipe communicating with the natural water body. Below the water inlet pipe and the water outlet pipe nozzle, a first overflow port is opened between the sedimentation chamber and the buoyancy chamber, a second overflow port is opened between the sedimentation chamber and the float chamber, and the first The area of the overflow port is smaller than the area of the second overflow port, the mouth of the first overflow port and the second overflow port are higher than the nozzle of the discarding pipe, and the second overflow port is provided with the The dry season sewage overflow port that the sedimentation chamber communicates with the floating ball chamber; the floating chamber is provided with a floating tank, and the floating ball chamber is provided with an abandonment flow channel connected to the abandonment flow pipe and the entrance of the abandonment flow passage can be covered The weight of the buoyant tank is greater than that of the buoyant ball, and the buoyant tank is connected to the buoyant ball through a connecting device.

Further, the end of the sewage main pipe is connected with the sewage treatment plant, and the tail ends of the rainwater branch pipes in the rainwater treatment area farthest from the sewage treatment plant are connected with the rainwater main pipe, and the tail ends of the sewage branch pipes are connected with the sewage pipes, and the water body passes through The rainwater main pipe and the sewage pipe are collected to the rainwater treatment facility; the rainwater branch pipes and sewage branch pipes in the remaining rainwater treatment area are all connected to the sewage pipe, and the water body is collected to the rainwater treatment facility through the sewage pipe. Facilities; a general storage tank is set between the rainwater treatment area closest to the sewage treatment plant and the sewage treatment plant, and the general storage tank has a water inlet, a natural water outlet and a sewage outlet. The water inlet of the pool is connected with the upstream sewage main pipe, the natural water outlet of the general storage tank is connected with the natural water body, and the sewage outlet of the general storage tank is connected with the downstream sewage main pipe.

The invention divides the urban water treatment system into several independent water body treatment areas with an area of 0.2 to 4 square kilometers, and sets independent small-scale rainwater treatment facilities in the water body treatment area. Each rainwater treatment facility only needs to treat The rainwater flowing out of the rainwater branch pipe and the sewage flowing out of the sewage branch pipe corresponding to the water body treatment area, due to the small area of the water body treatment area, the time difference between the rainwater at the far point and the near point of the rainwater treatment facility in each area converging to the rainwater treatment facility is relatively small Small, avoiding the problem that the initial rain contains a large amount of later rainwater caused by the time difference between the far point and the near point of the pipe network, greatly reducing the mixing degree of the initial rainwater and the later rainwater, and significantly improving the treatment effect of rainwater to achieve effective, continuous and efficient For the purpose of filtration and purification in mixed-flow pipelines.

In addition, since the present invention divides the entire pipe network area into smaller water body treatment areas, and then installs an independent small rainwater treatment system in the water body treatment area to achieve the purpose of regulating, storing and discarding the first rain, compared with the whole It is more economical to build a large-scale rainwater storage system in the region to save a lot of manpower and material resources.

Description of drawings

Fig. 1 is a schematic layout diagram of a traditional mixed-flow pipe network rainwater treatment system in the background technology;

Fig. 2 is a schematic layout diagram of the present invention;

Fig. 3 is the layout schematic diagram of rainwater treatment facility among the present invention;

Fig. 4 is a cross-sectional schematic diagram of A in Fig. 3;

Fig. 5 is a schematic diagram of a section B in Fig. 3;

Fig. 6 is a schematic cross-sectional view of C in Fig. 3;

Fig. 7 is a schematic diagram of a section D in Fig. 3;

Fig. 8 is a schematic diagram of the structure of the abandoned flow well in the present invention;

FIG. 9 is a schematic top view of FIG. 8 .

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In this embodiment, a regional fragmented rainwater treatment system based on a mixed-flow pipe network adopts the method of dividing the whole into parts, and artificially divides a large-area mixed-flow drainage system into several water body treatment areas, and each water body treatment area The rainwater and sewage in each area should be treated to avoid the problem that the initial rain contains a large amount of later rainwater caused by the time difference between the far point and the near point of the pipe network in the background technology, so as to effectively, continuously and efficiently filter and purify the urban mixed flow system pipeline.

Referring to Fig. 2, based on the above idea, a regional fragmented rainwater treatment system based on a mixed-flow pipe network in this embodiment adopts the method of fragmentation and divides 0.2 to 4 square kilometers into multiple grid-like water bodies Treatment area, each rainwater treatment area is established along the pipeline network, each rainwater treatment area includes rainwater treatment facilities with water inlet, natural water outlet and sewage outlet, and several rainwater branch pipes 1 and sewage branch pipes 2 connected to each other , the tail ends of each rainwater branch pipe 1 and sewage branch pipe 2 in the rainwater treatment area at the source are respectively connected with the rainwater joint pipe 3 and the sewage joint pipe 4, and each rainwater joint pipe 3 and sewage joint pipe 4 are correspondingly connected with the rainwater treatment facilities. The water outlet is connected, and the tail ends of each rainwater branch pipe 1 and sewage branch pipe 2 in the remaining rainwater treatment area downstream are connected with a sewage joint pipe 4, and the sewage joint pipe 4 is connected with the water inlet of the rainwater treatment facility; The rainwater and sewage in the treatment area are treated, and the natural water outlet is connected with the natural water body 5 , the sewage outlet is connected with the sewage main pipe 16 , and the end of the sewage main pipe 16 is connected with the sewage treatment plant 7 .

The rainwater treatment system in this embodiment is a combination of one or more types of abandonment wells, interception wells, and storage tanks, and the rainwater treatment facilities in each rainwater treatment area in the entire area can be of the same structure, or can be adapted to local conditions , the structures of rainwater treatment facilities in at least two rainwater treatment areas are different.

In addition, in this embodiment, since the entire pipe network area is divided into smaller water body treatment areas, an independent small-scale rainwater treatment system is installed in the water body treatment area to achieve the purpose of regulating, storing and discarding the first rainwater. It is more economical to build a total large-scale rainwater storage system in the whole area to save a lot of manpower and material resources.

In this embodiment, the sewage joint pipe 4 located in the water body treatment area at the source is a section of the sewage main pipe 16 to save pipe materials.

Embodiment one:

Referring to Fig. 3, the rainwater treatment facility in each rainwater treatment area of the present embodiment is the same structure, which includes a buffer pool 8.1 and an emergency flood discharge channel 8.2 arranged in sequence on the same side of the buffer pool 8.1, an initial rain storage tank 8.3 and The first water inlet, the second water inlet and the first water inlet connected to the emergency flood discharge channel 8.2, the first rain storage tank 8.3 and the online processing storage tank 8.4 are set on the buffer pool 8.1. Three water inlets, the first water inlet, the second water inlet and the third water inlet are arranged in a lower middle step, that is, the lowest water level of the third water inlet is at the same height as the highest water level of the second water inlet; The highest water level line of the third water inlet is equal to the lowest water level line of the first water inlet; the emergency flood discharge channel 8.2 has a natural water outlet connected to the natural water body 5, and the online processing storage tank 8.4 is provided with a natural water outlet connected overflow outlet.

The buffer pool 8.1 of this embodiment has a side wall body shared with the emergency flood discharge channel 8.2, the initial rain storage tank 8.3 and the online processing storage pool 8.4, and a pool body is arranged on the side of the side wall body of the buffer pool 8.1. The body consists of a side wall body 9, two first walls 10 and a second wall body 11 perpendicular to the side wall body 9, and a third wall body 12 parallel to the side wall body 9, and a parallel wall body is provided in the pool body. In the fourth wall 13 of the side wall 9, there is a distance between one end of the fourth wall 13 and the first wall 10, and the other end of the fourth wall 13 is connected with the second wall 11, and the fourth wall 13 There are two fifth walls 14 and sixth walls 15 arranged in parallel with the side wall 9, and the emergency flood discharge channel 8.2 is the side wall 9, the first wall 10, the third wall 12, In the area surrounded by the second wall 11 and the fourth wall 13, the third wall 12 of the emergency flood discharge channel 8.2 is provided with a natural water outlet connected to the natural water body; the initial rain storage tank 8.3 is a side wall 9 , the fifth wall body 14, the fourth wall body 13 and the sixth wall body 15 encircle the area, and the online processing pool 8.4 is the side wall body 9, the sixth wall body 15, the fourth wall body 13 and the second wall body In the area surrounded by the wall 11, an overflow is provided on the fourth wall 13 of the online processing storage tank 8.4, and the overflow is connected with the natural water outlet on the third wall of the emergency flood discharge channel 8.2, and then communicated with the natural water body.

Through the above arrangement, the scale of the rainwater treatment facility 8 in the rainwater treatment unit is reduced, and only the initial rainwater in the area needs to be treated, and the later rainwater is discharged to the natural water body nearby after being treated online by the online treatment and storage tank 8.4, which cannot The late rainwater processed on-line is discharged into the natural water body through the emergency flood discharge channel 8.2, so that different initial rain purification methods can be automatically selected according to different initial rainfall amounts, and the late rainwater contained in the early rain caused by the time difference between the far point and the near point of the pipe network is avoided. The problem of rainwater, in order to achieve the purpose of effective, continuous and efficient filtration and purification of the combined pipeline.

Referring to Fig. 4, one axial end of the buffer pool 8.1 of the present embodiment is a water inlet, and the other axial end is a water discharge port, and a flow control valve 8.11 is arranged at the discharge outlet, and the flow control gate 8.11 is composed of a flow sensor and an electric gate, and the normal flow rate Control the gate to set a constant flow rate to ensure that the sewage enters the sewage main pipe 16 at a constant flow rate; the inner wall at the bottom of the buffer pool 8.1 is a slope inclined towards the water outlet, so that the silt impurities in the water body can be discharged through the water outlet to avoid blocking the buffer pool 8.1 Internal channel; the second water inlet and the third water inlet are provided with a self-cleaning horizontal grille 8.12, referring to the Chinese patent No. 201520518807.4, the self-cleaning horizontal grille 8.12 includes horizontal grid bars arranged at intervals along the vertical direction And the rake teeth interspersed between the horizontal grid bars, the rake teeth are driven by the hydraulic cylinders arranged behind the horizontal grid bars to rotate, so as to conduct a preliminary analysis of the water entering the primary rain storage tank 8.3 and the online treatment storage tank 8.4 deal with.

Referring to Figure 5, the first water inlet of this embodiment is provided with a first self-opening weir gate 8.21 matching it, and the first self-opening weir gate 8.21 can be relatively opened or closed under the action of rising or falling water level, the first The self-opening weir gate 8.21 can be a hydraulic automatic gate. Refer to the Chinese patent No. 201410304733.4. The first self-opening weir gate 8.21 adopts a buoyancy design, which includes a rotating shaft, a buoyant tank and a weir gate plate. The buoyant tank is supported by The arm is fixed at one end of the rotating shaft, and the weir door plate is fixed on the rotating shaft through the supporting arm. The buoyancy tank and the weir door plate are located on the same side of the rotating shaft, and the rotating shaft is set on the side of the first water inlet. Its working principle is: buoyant tank chamber The height of the water inlet is calculated. When the water level in the pontoon chamber reaches the height of the water inlet of the pontoon chamber, the buoyancy on the pontoon just overcomes its gravity, and the pontoon can float. When there is a heavy rain, the buffer tank 8.1 The water level begins to rise. When the water in front of the weir gate gradually accumulates over the height of the water inlet of the pontoon chamber, the rainwater needs to be flooded. At this time, the buoyancy of the buoyancy box overcomes its gravity, and the buoyancy box floats upwards. Since the buoyancy box and the weir door plate are fixed on the rotating shaft, the rotating shaft can be rotated, and because the weir door plate and the buoyancy box are located on the rotating shaft. The same side of the shaft, so the weir door plate moves upwards under the drive of the rotating shaft, and the weir door opens instantly. Since the drainage is at the lower level, the floating objects are intercepted by the weir door plate, preventing the pollution of the water body. When the water level of the waterway gradually When descending, no more water enters the pontoon chamber, and the water in the pontoon chamber is slowly discharged through the small-diameter pontoon chamber water outlet on the side wall of the pontoon chamber. Small, the floating tank sinks slowly, and the weir door plate is slowly closed under the drive of the rotating shaft. Due to the slow closing, it can prevent damage to the weir door plate. After closing, the weir door plate is in close contact with the weir door sealing ring to achieve a good seal . After the buoyancy of the water body opens the first self-opening weir gate 8.21, it flows into the emergency flood discharge channel 8.2, and then discharges into the natural water body. In this example, the inner wall at the bottom of the emergency flood discharge channel 8.2 is a slope inclined to the natural water outlet, which can discharge the silt impurities in the water body through the natural water outlet.

Referring to Figure 6, the second water inlet of this embodiment is provided with a second self-opening weir gate 8.31 matching it, and the second self-opening weir gate 8.31 can be a hydraulic rotary weir gate. Refer to the Chinese patent No. 201410312118.8 , the second self-opening weir gate 8.31 includes an oil cylinder fixed on one side of the second water inlet, the driving end of the oil cylinder is hinged to the end surface of one side of the door panel; the end surface of the other side of the door panel is hinged to the other side of the second water inlet through a rotating shaft, Driven by the oil cylinder, the door panel can swing around the rotating shaft to open or close the second water inlet. The oil cylinder in this embodiment can also be equipped with an automatic control system, which can automatically control whether the oil cylinder is working or not according to the water level. , and then achieve automatic control of the opening or closing of the second water inlet, and achieve the purpose of complete automation; the first rain storage tank 8.3 is provided with a sump 8.32 lower than the bottom surface of the first rain storage tank near the second water inlet. The inner wall at the bottom of the storage tank 8.3 and the sump 8.32 is provided with a slope inclined towards the second water inlet, so that the silt impurities in the water flow into the sump 8.32 and then discharged from the second water inlet; in the primary rain storage tank 8.3 There is also an intelligent flushing device 8.33, referring to the Chinese patent with the patent number "201510259529.X", the intelligent flushing device 8.33 automatic control system, liquid level sensor, flushing device and submersible sewage pump, the automatic control system controls the submersible sewage pump to The water in the rain storage tank 8.3 is pumped out, and when the water level of the initial rain storage tank 8.3 begins to drop, the flushing device is controlled to stir and flush the bottom of the initial rain storage tank 8.3, and the water level in the initial rain storage tank 8.3 drops. When the preset height is reached, the automatic control system controls the flushing device to rotate and flush the primary rain storage tank 8.3 to prevent the primary rain storage tank 8.3 from clogging.

With reference to Fig. 7, the on-line processing storage tank 8.4 of the present embodiment and the initial rain storage tank 8.3 communicate with each other through the gates arranged on the side wall (sixth wall 15) near the buffer pool 8.1, and the online processing storage tank 8.4 A sewage corridor 8.41 lower than the bottom surface of the on-line processing storage tank 8.4 is provided near the third water inlet inside, and a baffle plate 8.42 with an open upper end is provided at the bottom of the online treatment storage tank 8.4, and the baffle plate 8.42 will connect the online treatment storage tank 8.4 A filter section and a discharge section that are divided into two and communicate with each other. A flapper flush door 8.44 is installed on the baffle plate 8.42. A hydraulic particle separator 8.43, a flapper flush door 8.44 and a hydraulic particle separator are installed in the filter section. The structure of 8.43 refers to the Chinese patent with the patent number "201510415907.9". The bottom inner wall of the filter section and the sewage corridor 8.41 is provided with a slope inclined to the third water inlet, and the overflow is provided on the end face of the discharge section, and the water flow enters the online treatment storage tank 8.4. After being purified by the hydraulic particle separator 8.43, the qualified water body is discharged into the natural water body from the overflow port; the unqualified water body is blocked by the baffle plate 8.42, and flows into the sewage corridor 8.41 along the slope, and passes through the third water inlet or gate, the first The second water inlet is discharged into the buffer tank 8.1, and finally discharged to the sewage treatment plant for treatment; the flapper-type flushing door 8.44 on the baffle 8.4 is opened at an appropriate time to treat the silt on the slope to achieve the purpose of self-cleaning.

When the rainwater treatment facility of the present invention is in use:

1. On sunny days, the water in the sewage pipe 4 enters the sewage treatment plant through the flow control gate 3 for treatment;

2. When it rains, the water bodies in the rainwater collection pipe 3 and the sewage collection pipe 4 first enter the sewage treatment plant 7 for treatment with the flow rate set by the flow control gate 8.11, and the rainwater that cannot be treated is stored in the buffer pool 8.1, and the corresponding buffer The water level of the pond 8.1 will slowly rise, and when rising to the lowest water level line of the second water inlet, the initial rainwater will pass through the self-cleaning horizontal grille 8.12 and the second self-opening weir gate 8.31 (the self-cleaning horizontal grille 8.12 can intercept Floating matter prevents floating matter from entering the initial rain storage tank 8.3; at this time, the second self-opening weir gate 8.31 is in a fully open state) and enters the initial rain storage tank 8.3 for storage. , the second self-opening weir gate 8.31 starts to close to prevent the collected initial rain from returning to the buffer pool 8.1. At this time, the late rainwater begins to flow into the online treatment storage tank 8.4 from the third water inlet, and is discharged after treatment. into natural bodies of water;

If the rain intensity is getting bigger and bigger, the water level of the buffer tank 8.1 will continue to rise so, when rising to the highest water level line at the third water inlet, the first self-opening weir door 8.21 will be opened, and the rainwater will enter from the first water inlet To the emergency flood discharge corridor 8.1, and then discharged into the natural water body, when the water level of the buffer pool 8.1 drops to the highest water level line of the third water inlet, the first self-opening weir gate 8.21 is closed.

3. After the rainfall ends, the water level of the buffer pool 8.1 drops. When it drops to the water level corresponding to sunny days, the intelligent flushing device 8.33 in the initial rain storage tank 8.3 is turned on, and the initial rain in the pool is strongly discharged into the buffer pool 8.1. Sent to sewage treatment plant 7 for processing; after the initial rain storage tank 8.3 has been flushed, the on-line processing storage tank 8.4 is rinsed. China Unicom, the online processing rainwater in the storage tank 8.4 is first pumped through the gate to the primary rain storage tank 8.3, and then the flapper-type flushing door 8.44 is opened to flush the bottom of the pool, and the flushed sewage flows into the sewage corridor 8.41. Finally, it is discharged into the buffer pool 8.1 from the first water inlet.

Embodiment two:

With reference to Fig. 8 and Fig. 9, the rainwater treatment facility of the present embodiment is the same structure, and can also be used in combination with the rainwater treatment facility in embodiment one, and the rainwater treatment facility of embodiment two is the abandonment well 6, and it includes setting There are three mutually independent well bodies of sedimentation chamber 6.1, float chamber 6.2 and float chamber 6.3. The sediment chamber 6.1 is connected with the water inlet pipe 6.4 connected with the upstream sewage main pipe, and the float chamber 6.2 and float chamber 6.3 are jointly connected with The outlet pipe 6.5 connected to the natural water body 5, the floating ball chamber 6.3 is connected with the jettison pipe 6.6 connected with the downstream sewage main pipe, the mouth of the jettison pipe 6.6 is lower than the mouth of the water inlet pipe 6.4 and the mouth of the water outlet pipe 6.5, the sedimentation chamber 6.1 is connected with the floating tank There is a first overflow port 6.7 between the chambers 6.2, a second overflow port 6.8 between the sedimentation chamber 6.1 and the float chamber 6.3, the area of the first overflow port 6.7 is smaller than the area of the second overflow port 6.8, The mouth of the first overflow port 6.7 and the second overflow port 6.8 are higher than the mouth of the jettison pipe 6.6. The float chamber 6.2 is provided with a float tank 6.9. The flow channel 6.10 and the floating ball 6.11 that can cover the inlet of the discarded flow channel 6.10, the weight of the floating box 6.9 is greater than the weight of the floating ball 6.11, and the floating box 6.9 and the floating ball 6.11 are connected by a connecting device.

The first retaining wall 6.12 and the second retaining wall 6.13 which are perpendicular to each other and vertically arranged in the well body of this embodiment are arranged. The sedimentation chamber 6.1 is enclosed between the first retaining wall 6.12 and the inner wall of the well. The first retaining wall 6.12 has a section, The buoyancy chamber 6.2 is enclosed between the second retaining wall 6.13 and the inner wall of the well, the other section of the first retaining wall 6.12, the floating ball chamber 6.13 is enclosed between the second retaining wall 6.13 and the inner wall of the well, and the first overflow port 6.7 One section of the first retaining wall 6.12 is opened, and the second overflow port 6.8 is opened at the other section of the second retaining wall 6.13.

In this embodiment, below the second overflow port 6.8, there is a dry season sewage overflow port 6.14 that connects the sedimentation chamber 6.1 with the float chamber 6.3. After settling, it enters the floating ball chamber 6.3 through the dry flow sewage overflow port 6.14, and then is discharged through the jettison pipe 6.6. Since the height of the dry sewage overflow port 6.14 is lower than the second overflow port 6.8 and the first overflow port 6.7, the dry sewage will not enter the floating tank chamber 6.2, which can avoid the bottom between the floating tank chamber 6.2 and the floating ball chamber 6.3 The weep hole 6.15 that offers is blocked up.

The connecting device of the present embodiment comprises a connecting rope, one end of the connecting rope is fixed with the buoyancy tank 6.9, and the other end passes through the block of pulleys and is fixed with the floating ball 6.11.

The operating principle of the abandoned flow well 6 of the present embodiment is:

The rainwater enters the abandonment well 6 through the water inlet pipe 6.4, and after settling in the sedimentation chamber 6.1, it enters the buoyancy chamber 6.2 and the buoyancy chamber 6.3 respectively through the first overflow port 6.7 and the second overflow port 6.8. Due to the weight of the buoyancy chamber 6.9 It is larger than the weight of the floating ball 6.11. In the initial state, the floating tank 6.9 is at the lowest position, and the floating ball 6.11 is at the highest position (that is, in the open state). If it starts to rain, the initial rainwater can be discarded through the jettison 6.6. When the rainfall gradually increases When it is large, the water level in the buoyancy chamber 6.2 gradually rises. At this time, the buoyancy tank 6.9 reaches the highest position under the action of buoyancy, and the buoyancy ball 6.11 reaches the lowest position (that is, the closed state). At this time, the buoyancy ball 6.11 blocks the flow passage 6.10, rainwater will gather in the float chamber 6.3, when the water level in the float chamber 6.3 rises to the outlet pipe 6.5, the rainwater will be discharged from the outlet pipe 6.5 into the natural water body, and the rainwater has become relatively clean at this time, reaching the The effect of preprocessing. This unit requires regular maintenance to clean the sludge in the settling chamber. Wherein, the opening size ratio of the first overflow port 6.7 and the second overflow port 6.8 and the water level for stopping the discarded flow can be set according to the volume of water in different situations.

In this embodiment, a storage tank 17 is arranged between the rainwater treatment area nearest to the sewage treatment plant 7 and the sewage treatment plant 7. The total storage tank 17 has a water inlet, a natural water outlet and a sewage outlet. The water inlet is communicated with the upstream sewage main pipe 16, the natural water outlet of the general storage tank 17 is communicated with the natural water body 5, and the sewage outlet of the general storage tank 17 is communicated with the downstream sewage main pipe 16. In actual application, due to the limited processing capacity of the sewage treatment plant 7, a general storage tank 17 is added at the front end of the sewage treatment plant 7, and the general storage tank 17 can collect and treat initial rainwater. After the rain stops, the first rain in the general storage tank 17 is discharged to the sewage treatment plant 7 for comprehensive treatment, so as to buffer the treatment pressure of the sewage treatment plant 7.

The above descriptions are only preferred embodiments of the present invention, and do not limit the structure of the present invention in any form. All simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (6)

1. a kind of region burst rain processing system based on mixed flow tubulation net, including common sewer (16), rainwater branch pipe (1) and The pipe shaft of branch sewer (2), the rainwater branch pipe (1) and branch sewer (2) is interconnected, it is characterised in that：Press in the region It is in set rainy in latticed rainwater treatment section, each described rainwater treatment section that 0.2~4 square kilometre, which is divided into multiple, Water processing establishment, the rainwater treatment facility has in water inlet, natural water out and outlet of sewer, the rainwater treatment section Rainwater branch pipe (1) and branch sewer (2) the rainwater treatment facility is pooled to by water inlet, the natural water out with from Right water body (5) connection, the outlet of sewer is connected with the common sewer；The rain processing system be abandoned stream well, Vatch basin, One or more of combinations of storage pond；Rainwater treatment facility in the whole region at least two rainwater treatment sections Structure is differed；It is tight that the rainwater treatment facility includes buffer pool (8.1) and the buffer pool (8.1) homonymy and is sequentially arranged Set and use on anxious flood discharge passage (8.2), first rain storage pond (8.3) and online processing storage pond (8.4), the buffer pool (8.1) By the buffer pool (8.1) correspondence and the urgent flood discharge passage (8.2), first rain storage pond (8.3) and online processing storage pond (8.4) connection the first water inlet, the second water inlet and the 3rd water inlet, the lowest water level line of the 3rd water inlet with it is described The maximum water level of second water inlet is contour；The maximum water level of 3rd water inlet and the minimum water of first water inlet Bit line is contour；The urgent flood discharge passage (8.2) has the natural water out connected with the natural water (5), described online Processing storage pond (8.4) is provided with the overfall connected with the urgent flood discharge passage (8.2)；Or, the rainwater treatment facility For abandoned stream well (6), the abandoned stream well (6) includes being provided with three separate mud chambers (6.1), buoyancy tank room (6.2) and floated The well body of ball room (6.3), the mud chamber (6.1) is connected with the water inlet pipe (6.4) connected with upstream common sewer, the buoyancy tank Room (6.2), float chamber (6.3) are connected with the outlet pipe (6.5) connected with the natural water (5), the float chamber jointly (6.3) the abandoned stream pipe (6.6) connected with downstream wastewater house steward is connected with, abandoned stream pipe (6.6) mouth of pipe is below water inlet pipe (6.4) the first overfall (6.7), institute and outlet pipe (6.5) mouth of pipe, are provided between the mud chamber (6.1) and buoyancy tank room (6.2) State and the second overfall (6.8) is provided between mud chamber (6.1) and float chamber (6.3), the area of first overfall (6.7) is small Area in the second overfall (6.8), first overfall (6.7), the second overfall (6.8) mouth of pipe are above abandoned stream pipe (6.6) drought for connecting the mud chamber (6.1) with float chamber (6.3) is provided with below the mouth of pipe, second overfall (6.8) Season sewage overflow mouthful (6.14)；Be provided with the buoyancy tank room (6.2) in buoyancy tank (6.9), the float chamber (6.3) be communicated with to The abandoned stream passage (6.10) of abandoned stream pipe (6.6) and the ball float (6.11) that abandoned stream passage (6.10) entrance can be covered, it is described The weight of buoyancy tank (6.9) is more than the weight of the ball float (6.11), passes through between the buoyancy tank (6.9) and the ball float (6.11) Attachment means are connected.

2. the region burst rain processing system according to claim 1 based on mixed flow tubulation net, it is characterised in that：It is described Buffer pool (8.1) bottom interior wall is to the inclined slope in water side；It is provided with second water inlet and the 3rd water inlet certainly Clear up horizontal grate (8.12).

3. the region burst rain processing system according to claim 1 based on mixed flow tubulation net, it is characterised in that：It is described It is provided with first water inlet in the first matched self-opening weir gate (8.21), urgent flood discharge passage (8.2) bottom Wall is to the slope of Natural Water outlet-inclined impeller vane.

4. the region burst rain processing system according to claim 1 based on mixed flow tubulation net, it is characterised in that：It is described The second matched self-opening weir gate (8.31) is provided with second water inlet；It is described just in rain storage pond (8.3) close to the Two water inlets are provided with the collecting-tank (8.32) less than the just rain storage pond bottom surface, the just rain storage pond (8.3) and collection Pond (8.32) bottom interior wall sets the oriented inclined slope of second water inlet；Intelligence is provided with the just rain storage pond (8.3) Can flusher (8.33).

5. the region burst rain processing system according to claim 1 based on mixed flow tubulation net, it is characterised in that：It is described First rain storage pond (8.3) is connected with the online processing storage pond (8.4) by gate, and the gate locating is close to described slow Rush the side wall at pond (8.1) place；Close 3rd water inlet is provided with online less than described in the online processing storage pond (8.4) The sewage gallery (8.41) of storage pond (8.4) bottom surface is handled, it is open that described online processing storage pond (8.4) bottom is provided with upper end Baffle plate (8.42), the baffle plate (8.42) is by online processing storage pond (8.4) filtering that is divided into two and is interconnected It is provided with section and discharge section, the baffle plate (8.42) in flap type flushing door (8.44), the fillter section and is provided with waterpower Grain separator (8.43), the bottom interior wall of fillter section and the sewage gallery (8.41) sets oriented 3rd water inlet inclined tiltedly Slope, the overfall is arranged on the discharge section end face.

6. the region burst rain processing system according to claim 1 based on mixed flow tubulation net, it is characterised in that：It is described Common sewer (16) end is connected with sewage treatment plant (7), the rainwater treatment section farthest apart from the sewage treatment plant (7) Each rainwater branch pipe (1) tail end is connected with rainwater house steward (3), and each branch sewer (2) tail end is connected with dirty hydration tube (4), water Body is pooled to the rainwater treatment facility through the rainwater house steward (3) and dirty hydration tube (4)；The remaining rainwater treatment section Each rainwater branch pipe (1) connected with branch sewer (2) with dirty hydration tube (4), water body is pooled to through the dirty hydration tube (4) The rainwater treatment facility；The rainwater treatment section nearest apart from the sewage treatment plant (7) and the sewage treatment plant (7) it Between be provided with total storage pond (17), total storage pond (17) has water inlet, natural water out and an outlet of sewer, described total to adjust The water inlet of reservoir (17) is connected with the common sewer (16) of upstream, the natural water out of total storage pond (17) Connected with natural water (5), the outlet of sewer of total storage pond (17) is connected with the common sewer (16) in downstream.