Hydraulic flow splitter well

Abstract

The application discloses a hydraulic split-flow well, which comprises a water passing corridor and a cyclone tank. The upstream of the water passing corridor is used for inflow of sewage and combined flow, and initial split-flow is performed by using the cyclone generated by the shape of the water passing corridor and different flow tank height differences. The cyclone tank is communicated with the downstream of the water passing corridor, and the cyclone tank has an annular inner wall and a central water collecting opening, so that water forms a cyclone in the cyclone tank, and solid pollutants such as mud in the water are deposited on the inner wall by centrifugal force, and intercepting water with the solid pollutants removed is discharged through the water collecting opening. The above-mentioned hydraulic split-flow well separates solid pollutants such as mud in sewage and combined flow by hydraulic form control, and the cyclone can make the mud in the water deposit, so that initial rainwater in the intercepting well and dry flow sewage are preliminarily treated. Therefore, the problems of excessive mud deposition in municipal rainwater pipelines and excessive suspended pollutants and BOD in the water discharged from the intercepting well to pollute the water body are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal drainage, in particular to a hydraulic diversion well. BACKGROUND

[0002] In recent years, with the gradual emphasis on environmental protection, the reconstruction of old urban pipe networks has gradually increased. The use of intercepting wells has gradually become a common engineering method.

[0003] In a drainage pipe network system, intercepting wells can be used to intercept dry flow sewage and part of the initial rainwater; however, the existing intercepting wells are often combined by multiple single-function wells, which have high costs and cannot remove the solid suspended matter carried in the initial rainwater. It often causes the blockage of intercepting wells and intercepting dry flow pipes, increases the treatment pressure of the end sewage plant, and often cannot be set due to site limitations, so that the initial rainwater interception and utilization cannot be completely and conveniently realized.

[0004] Therefore, how to provide a hydraulic diversion well to solve the above technical problems is a technical problem that those skilled in the art need to solve. SUMMARY

[0005] The purpose of the present application is to provide a hydraulic diversion well, which separates the silt in the combined sewage in the rainy season by hydraulic form control. The cyclone can make the suspended pollutants in the dry flow sewage and the combined sewage in the rainy season deposit, thereby realizing the preliminary treatment of the initial rainwater and the dry flow sewage.

[0006] To achieve the above purpose, the present application provides a hydraulic diversion well, comprising:

[0007] a water passage corridor, which is used for inflow of sewage and combined water upstream; and

[0008] a cyclone tank in communication with the downstream of the water passage corridor, and the cyclone tank has an annular inner wall and a water collecting port located at the center, so that the water forms a cyclone in the cyclone tank, the impurities are deposited on the inner wall by centrifugal force, and the intercepting water without impurities is discharged through the water collecting port.

[0009] Preferably, a diversion member is further arranged in the water passage corridor, the water passage corridor comprises a water passage total flow channel located upstream and a first water diversion channel and a second water diversion channel located downstream and in communication with the water passage total flow channel and divided by the diversion member.

[0010] Preferably, the cyclone tank is in communication with the first water diversion channel, the water passage total flow channel, the first water diversion channel and the bottom of the cyclone tank have the same elevation, and the bottom of the second water diversion channel has a higher elevation than the water passage total flow channel and the first water diversion channel.

[0011] Preferably, a first water discharge weir is arranged between the total water passage and the second water passage; the height of the first water discharge weir is calculated as H = h1 + h2, wherein H is the height of the first water discharge weir, h1 is the normal water level of the local dry flow sewage pipeline, and h2 is the normal water level of the local initial rainwater pipeline.

[0012] Preferably, the width of the second water passage is greater than the width of the first water passage.

[0013] Preferably, the second water passage is provided with a water outlet.

[0014] Preferably, a second water discharge weir is arranged between the first water passage and the second water passage.

[0015] Preferably, the total water passage has an arc shape with a bending angle.

[0016] Preferably, the cyclone tank is provided with a replaceable dirt collecting member covering the inner wall.

[0017] Preferably, the hydraulic flow distribution well has a rectangular or circular shape.

[0018] With respect to the above background, the hydraulic flow distribution well provided by the present application comprises a total water passage and a cyclone tank; the total water passage is divided into an upstream part and a downstream part, the upstream part is used for flowing in sewage and combined water, and the downstream part is in communication with the cyclone tank; the cyclone tank has an inner wall and a water collecting outlet, the inner wall is annular, and the water collecting outlet is located at the center.

[0019] In the use of the hydraulic flow distribution well, the water source of the total water passage can be the upstream combined sewage pipeline or the channel inflow, and the sewage and the combined water form a cyclone after passing through the total water passage. In the case of large flow combined water, the water and the suspended pollutants and inorganic sand and stone therein are subjected to the action of inertia, and the water passing through the total water passage flows into the cyclone tank. In the case of dry flow sewage, the water level of the sewage is lower than the height of the first water discharge weir, the sewage forms a low-speed cyclone or a flat flow, and the sewage passing through the total water passage flows into the cyclone tank and forms a short-term sedimentation, and the water is discharged after being preliminarily treated. In the case of rain season combined water, the combined sewage has large water quantity and high speed, the water forms a cyclone in the cyclone tank, the impurities in the combined sewage are deposited on the inner wall by centrifugal force, and the rainwater after removing the impurities is discharged through the water collecting outlet. The above hydraulic flow distribution well separates and deposits the suspended pollutants in the dry flow sewage and the combined sewage in the rain season by controlling the hydraulic form, and preliminarily treats the initial rainwater in the dry flow sewage and the combined sewage in the rain season, thereby reducing the problems of large overflow water pollution and high concentration of pollutants in the intercepting well. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only illustrate a part of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0021] Figure 1 The structural schematic diagram of the hydraulic flow distribution well provided by the present application is shown in the figure.

[0022] Figure 2 The plan view of the hydraulic flow distribution well provided by the first embodiment of the present application is shown in the figure.

[0023] Figure 3 The plan view of the hydraulic flow distribution well provided by the second embodiment of the present application is shown in the figure.

[0024] Figure 4 The flow distribution height schematic diagram of the hydraulic flow distribution well provided by the present application is shown in the figure.

[0025] Wherein,

[0026] 10- water passage, 20- cyclone tank, 30- flow distribution piece,

[0027] 101- total water passage, 102- first water flow distribution passage, 103- second water flow distribution passage,

[0028] 201- water collecting port, 202- pollution collecting piece,

[0029] 301- water distribution nozzle,

[0030] 1011- first water discharge weir, 1021- second water discharge weir, 1031- water outlet. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0032] In order to make the person skilled in the art better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0033] Please refer to Figures 1 to 4 Wherein, Figure 1 The structural schematic diagram of the hydraulic flow distribution well provided by the present application is shown in the figure, Figure 2A plan view of a hydraulic split-flow well according to a first embodiment of the present application, Figure 3 A plan view of a hydraulic split-flow well according to a second embodiment of the present application, Figure 4 A split-flow height diagram of a hydraulic split-flow well according to the present application.

[0034] In a first specific embodiment, the present application provides a hydraulic split-flow well, which includes a water passage corridor 10 and a cyclone tank 20, the water passage corridor 10 being in communication with the cyclone tank 20, and the cyclone tank 20 having an inner wall and a water collection port 201.

[0035] For the purpose of illustration, the flow of water in the water passage corridor 10 is defined as follows: the inflow end of water is the upstream of the water passage corridor 10, and the outflow end of water is the downstream of the water passage corridor 10.

[0036] In this embodiment, the upstream of the water passage corridor 10 is used for inflow of sewage and combined flow, and the downstream is in communication with the cyclone tank 20; the inner wall of the cyclone tank 20 is annular, and the water collection port 201 is located at the center.

[0037] The cyclone tank 20 is provided with a cylindrical middle overflow pipe at the center, and the water collection port 201 is located at the upper end of the middle overflow pipe, which is used to collect the surface water at the center of the cyclone tank 20.

[0038] In the use of the hydraulic split-flow well, the water source of the water passage corridor 10 can be upstream pipes, channels, and the like. After the water enters the water passage corridor 10, in the case of dry flow of sewage, the sewage forms a low-speed cyclone or a horizontal flow, and a short-term sedimentation is formed in the cyclone tank 20, and after preliminary treatment, the water is overflowed and discharged through the water collection port 201; in the case of combined flow in the rainy season, the combined sewage has a large water volume and a high speed, and the water enters the cyclone tank 20 in the tangent direction; the water forms a cyclone in the cyclone tank 20, and the impurities in the water are deposited on the inner wall by centrifugal force, and the water from which the impurities are removed is discharged through the water collection port 201.

[0039] The above-mentioned hydraulic split-flow well separates the suspended pollutants in the combined flow by controlling the hydraulic form, and the cyclone can deposit the silt in the water, thereby solving the problem of excessive sedimentation of silt in the municipal rainwater pipeline.

[0040] In some embodiments, a split-flow device 30 is further arranged in the water passage corridor 10, the water passage corridor 10 includes a water passage total flow passage 101 at the upstream and a first water split-flow passage 102 and a second water split-flow passage 103 at the downstream, which are in communication with the water passage total flow passage 101 and are split by the split-flow device 30.

[0041] In the embodiment, the end of the flow distributor 30 has a water distribution nozzle 301, and the water distribution nozzle 301 at the tip of the flow distributor 30 divides the water in the water flow channel 101, and the water in the water flow channel 101 can be divided into the first water flow channel 102 and the second water flow channel 103 according to different flow conditions.

[0042] Specifically, the cyclone tank 20 is in communication with the first water flow channel 102, the cyclone tank 20 can be arranged in the first water flow channel 102, the bottom elevations of the water flow channel 101, the first water flow channel 102 and the cyclone tank 20 are the same, and the bottom elevation of the second water flow channel 103 is higher than those of the water flow channel 101 and the first water flow channel 102.

[0043] Among them, the first water flow channel 102 is mainly used for water distribution in the application, and the elevation thereof is the same as that of the water flow channel 101, so as to receive the water discharged from the upstream water flow channel 101 to achieve the purpose of intercepting initial rainwater; the bottom elevation of the second water flow channel 103 is higher than that of the water flow channel 101, and the structure mainly plays a role of water discharge under large water conditions.

[0044] On this basis, the second water flow channel 103 is provided with a water outlet 1031.

[0045] In some embodiments, the flow channel width of the second water flow channel 103 is greater than that of the first water flow channel 102.

[0046] In the embodiment, the above flow conditions are illustrated as follows:

[0047] Under small water conditions such as dry season and initial rain, referring to the first flow condition, since the water level is lower than the height of the first water discharge weir 1011, the water enters the first water flow channel 102 from the water flow channel 101, and then enters the cyclone tank 20 from the first water flow channel 102 for sedimentation or cyclone, and the pollutants are deposited on the inner wall of the cyclone tank 20 by the centrifugal force, and the upper water is discharged through the water collecting port 201;

[0048] Under large water conditions, the sediments and sand stones after passing through the water flow channel 101 enter the first water flow channel 102, and the relatively clear water enters the second water flow channel 103. Specifically, the water forms a cyclone in the water flow channel 101, so that the water and the suspended pollutants and inorganic sand stones therein are subjected to the action of inertia, and the inertia is greater than that of the suspended pollutants and inorganic sand stones, so that the water directly enters the first water flow channel 102, and then enters the cyclone tank 20; on the contrary, the water with small inertia can enter the second water flow channel 103.

[0049] The second water flow channel 103 can achieve the purpose of water discharge under heavy rainfall conditions, and avoid well water overflow under large water conditions.

[0050] On this basis, the first water overflow weir 1011 is arranged between the total water flow passage 101 and the second water diversion passage 103.

[0051] For example, the height of the first water overflow weir 1011 is calculated according to the following formula:

[0052] H = h1 + h2;

[0053] Wherein, H is the height of the first water overflow weir 1011, h1 is the local dry flow sewage pipeline flow common water level; h2 is the local initial rainwater pipeline flow common water level.

[0054] In this embodiment, during the flow of water in the total water flow passage 101, when the water level exceeds the first water overflow weir 1011, the upper layer of water enters the second water diversion passage 103.

[0055] On this basis, the second water overflow weir 1021 is arranged between the first water diversion passage 102 and the second water diversion passage 103.

[0056] In this embodiment, during the flow of water in the first water diversion passage 102 and the cyclone tank 20, when the water level exceeds the second water overflow weir 1021 under large water conditions, the excess rainwater overflows into the second water diversion passage 103.

[0057] In some embodiments, the flow passage of the total water flow passage 101 is arc-shaped with a bending angle.

[0058] In this embodiment, the total water flow passage 101 first contacts the upstream water pipe and the channel inflow, mainly to generate a cyclone effect for the inflow, and the cross-sectional area thereof should be the same as that of the rainwater pipeline. The flow channel angle should be calculated according to the annual average rainfall intensity and the rainwater catchment area.

[0059] Water first generates a cyclone effect in the total water flow passage 101, and then forms a low-speed cyclone in the cyclone zone of the cyclone tank 20. The cyclone can cause sediment deposition and periodic cleaning. The water is diverted and deposited by the cyclone effect of the total water flow passage 101 and the cyclone tank 20, and the purpose of interception, diversion and preliminary purification of the initial rainwater is achieved by changing the water flow pattern. Compared with the traditional rainwater interception well, the problem of incomplete diversion, overly complex structure and the need for manual cleaning is avoided.

[0060] Wherein, the form of the total water flow passage 101 is not unique, which can be Figure 1 The shape of the single bending angle shown can also be other shapes; the bending angle can be Figure 1The angle shown can also be other angles, as long as the setting form can enable the sediment with large inertia and sand to pass into the first water diversion channel 102 under the action of inertia, which belongs to the description range of the embodiment.

[0061] In some embodiments, the replaceable dirt collecting member 202 is arranged in the cyclone tank 20 and covers the inner wall.

[0062] In the embodiment, the dirt collecting member 202 is preferably a dirt removing basket arranged in the cyclone tank 20, which has the advantage of being regularly taken out for easy removal of dirt.

[0063] In some embodiments, the hydraulic diversion well is rectangular or circular in shape.

[0064] It should be noted that the hydraulic diversion well in the embodiment can be Figure 2 rectangular as shown, or Figure 3 circular as shown, to adapt to different requirements in actual use; for embodiments with other unchanged internal structures and only simple changes in external shape, they should belong to the description range of the embodiment.

[0065] The purpose of the present application is to provide a hydraulic diversion well structure arranged at the terminal of a combined pipeline discharge or together with a retention well, which overcomes the problems of less initial rainwater retention, complex retention well structure, easy clogging and inability to form local preliminary treatment under the prior art conditions.

[0066] In the embodiment, the water source of the water passage 10 can be an upstream pipeline, a channel inflow, etc. After the water passes through the water passage 10: in the case of dry flow sewage, the sewage level is lower than the height of the first water weir 1011, the sewage forms a low-speed cyclone or a horizontal flow, the sewage passes through the water passage 10 and enters the cyclone tank 20, and a short-term sedimentation is formed in the cyclone tank 20, and after preliminary treatment, the water is overflowed and discharged through the water collecting port 201; in the case of combined flow in the rainy season, the combined sewage has large water quantity and high speed, and the water enters the cyclone tank 20 in the tangent direction of the cyclone tank 20; the water forms a cyclone in the cyclone tank 20, and the impurities in the water are deposited on the inner wall by centrifugal force, and the water from which the impurities are removed is discharged through the water collecting port 201.

[0067] The present application has the following technical effects:

[0068] (1) The hydraulic diversion well provided by the present application can realize the function of retaining initial rainwater with severe pollution and perform a certain amount of physical treatment on the initial rainwater;

[0069] (2) The present application can clean the pollutants deposited in the cyclone tank 20 by regularly taking out the dirt removing basket, avoiding the low efficiency of traditional cleaning;

[0070] (3) The application sets the total water flow passage 101 as an arc shape, so that the upstream water produces a cyclone; under the condition of small water quantity, the water enters the first water diversion passage 102; under the condition of large water quantity, the sediments and sand with large inertia are guided into the first water diversion passage 102, and the water with small inertia and small impurities is guided into the second water diversion passage 103;

[0071] (4) The application sets the second water diversion passage 103, so that the upstream water can be discharged under the condition of heavy rainfall, and the overflow of well water under the condition of large water quantity is avoided.

[0072] (5) The application sets the second water discharge weir 1021, so that under the condition of large water quantity, the cyclone tank 20 can overflow the excess water to the second water diversion passage 103, and safety is ensured.

[0073] It should be noted that the components mentioned in the application are all general standard components or components known to those skilled in the art, and their structures and principles can be known by the technical personnel through technical manuals or through conventional experimental methods.

[0074] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0075] The hydraulic diversion well provided by the application is described in detail above. The principles and implementation modes of the application are described by applying specific examples in this paper, and the above description of the embodiments is only used to help understand the method of the application and its core idea. It should be pointed out that for ordinary skilled personnel in the technical field, some improvements and modifications can be made to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A hydraulic flow split well, characterized in that, It comprises: a water passage (10) for sewage and combined flow to flow in upstream; and a cyclone tank (20) in communication with downstream of the water passage (10), and the cyclone tank (20) has an annular inner wall and a central water collecting port (201) to make water form a cyclone in the cyclone tank (20), and use centrifugal force to deposit sundries on the inner wall, and intercept water removing sundries to be discharged through the water collecting port (201); It also comprises a flow dividing member (30) arranged in the water passage (10), and the water passage (10) comprises an upstream water passage total flow channel (101) and downstream first and second water sub-flow channels (102 and 103) in communication with the water passage total flow channel (101) and divided by the flow dividing member (30); The cyclone tank (20) is in communication with the first water sub-flow channel (102), the water passage total flow channel (101), the first water sub-flow channel (102) and the bottom of the cyclone tank (20) have the same elevation, and the bottom of the second water sub-flow channel (103) has a higher elevation than the water passage total flow channel (101) and the first water sub-flow channel (102); The flow channel width of the second water sub-flow channel (103) is greater than that of the first water sub-flow channel (102); The second water sub-flow channel (103) is provided with a second water discharge weir (1021) between the first water sub-flow channel (102) and the second water sub-flow channel (103).

2. The hydraulic separating well according to claim 1, characterized in that The water passage total flow channel (101) is provided with a first water discharge weir (1011) between the water passage total flow channel (101) and the second water sub-flow channel (103); the weir height of the first water discharge weir (1011) is obtained by calculation, and the calculation formula is: H=h1+h2, H is the weir height of the first water discharge weir (1011), h1 is the local dry flow sewage pipeline flow common water level; h2 is the local initial rainwater pipeline flow common water level.

3. The hydraulic separating well according to claim 1, characterized in that The second water sub-flow channel (103) is provided with a water outlet (1031); the water outlet (1031) is used to discharge water into a receiving water body.

4. The hydraulic flow splitter well of any one of claims 1 to 3, wherein, The flow channel shape of the water passage total flow channel (101) is an arc with a bending angle.

5. The hydraulic flow splitter well of any one of claims 1 to 3, wherein, The cyclone tank (20) is provided with a replaceable sundries collecting member (202), and the sundries collecting member (202) covers the inner wall.

6. The hydraulic flow splitter well of any one of claims 1 to 3, wherein, The shape of the water force flow dividing well is rectangular or circular.

Images