Industrial Park Drainage System

Abstract

The present application relates to the field of drainage technology, and in particular to an industrial park drainage system, which includes an inclined pipe group and a plurality of buffer wells; the pipe group includes a plurality of drainage pipes and is used to transport the upper wastewater downward to the buffer well or a sewage treatment plant; the buffer well is provided with a plurality of input ports and output ports corresponding to the drainage pipe, the input port is connected to the drainage pipe located on the upper side of the buffer well, and the output port is connected to the drainage pipe located on the lower side of the buffer well; and the inner wall of the input port is formed with at least two flow channels, and the output directions of at least two of the flow channels are arranged to intersect. The present application reduces the erosion of wastewater on drainage facilities such as pipes while slowing down the downward discharge velocity of wastewater.

Description

Technical Field

[0001] The present application relates to the field of drainage technology, and in particular to an industrial park drainage system. Background Art

[0002] Industrial park wastewater is different from urban domestic wastewater. Due to the wide variety of pollutants in industrial park wastewater, two methods are usually used to treat industrial park wastewater. One is that enterprises build their own wastewater treatment plants around the factory buildings, but this method has high requirements for enterprises and the cost of building wastewater treatment plants is relatively high.

[0003] Therefore, in the existing technology, more centralized treatment is adopted in industrial parks to reduce the burden on enterprise development. However, in industrial parks, due to the different situations of enterprises and industries, the harmful substances in wastewater are different, such as heavy metal wastewater, acid and alkali wastewater, complex wastewater, cyanide wastewater, hydrofluoric acid wastewater, etc. Such wastewater will cause greater corrosion to concrete and metals than ordinary water.

[0004] At the same time, due to regional restrictions, for example, in areas with relatively more mountains, there are relatively large differences in terrain, and sewage treatment plants will be built in the middle or bottom to facilitate the flow of sewage down to the sewage treatment plant for treatment. Pipes are often used to transport wastewater to sewage treatment plants, but if there is a large height difference, it will cause obvious water hammer effects and relatively large static pressure in the water pipeline; at the same time, combined with industrial wastewater, it will significantly accelerate the erosion of wastewater on drainage pipes. Therefore, how to reduce the impact of wastewater on the safe operation of drainage pipes in long steep slopes is an urgent problem that needs to be solved. Summary of the invention

[0005] In order to reduce the impact of wastewater on the safe operation of the drainage system in long steep slope areas, the present application provides an industrial park drainage system.

[0006] This application provides an industrial park drainage system, which adopts the following technical solutions:

[0007] A drainage system for an industrial park comprises an inclined pipe group and a plurality of buffer wells; the pipe group comprises a plurality of drainage pipes and is used to transport waste water from the upper part downward to the buffer well or a sewage treatment plant; the buffer well is provided with a plurality of input ports and output ports corresponding to the drainage pipes, the input ports are connected to the drainage pipe located on the upper side of the buffer well, and the output ports are connected to the drainage pipe located on the lower side of the buffer well; and at least two flow channels are formed on the inner wall of the input port, and the output directions of at least two of the flow channels are arranged to intersect.

[0008] By adopting the above technical solution, in the process of wastewater discharge to the sewage treatment plant, due to the relatively fast flow rate growth in the long steep slope area, at this time, the sewage will be transported from the flow channel of the input port to the buffer well through the drainage pipe. At this time, since the output directions of at least two flow channels are arranged to intersect, on the one hand, the water flows that impact each other will be dispersed to avoid the formation of concentrated beams impacting the buffer well, so as to slow down the local scouring of the inner wall of the buffer well; on the other hand, the mutual impact will greatly consume the kinetic energy of the water flow in the process of flowing downward, thereby further slowing down the scouring of the buffer well. At the same time, due to the setting of several buffer wells, the kinetic energy of the wastewater in the process of downward discharge can be consumed multiple times, and the wastewater is first accumulated in the buffer well and then discharged from the output port to the drainage pipe below, so that the flow rate of the wastewater in the drainage pipe can be significantly reduced in the long steep slope area, reducing the scouring of the drainage pipe, thereby reducing the possibility of wastewater leakage caused by the erosion of wastewater; so as to optimize the stability of wastewater transportation.

[0009] Optionally, the output port is lower than the input port, and the distance between the output port and the bottom of the buffer well is greater than 20 cm.

[0010] By adopting the above technical solution, the depth of wastewater accumulation in the buffer well can be greater than 20 cm, reducing the possibility that the bottom of the buffer well will be directly washed by the wastewater flow due to the concave liquid surface caused by the impact of water flow.

[0011] Optionally, a water collection net covering the inner wall of the buffer well is provided above the input port.

[0012] By adopting the above technical scheme, part of the wastewater will be atomized due to the mutual scouring of water flows. The impact atomized water mist is different from the water mist produced by evaporation. It is mostly tiny water droplets. At this time, the water collection net located above the input port can make the atomized water mist contact the water collection net first, so that the atomized water mist can condense through the water collection net and flow back to the buffer well. At the same time, the air pressure can be balanced through the buffer well to reduce the water hammer effect caused by the pressure difference caused by long-distance wastewater transportation.

[0013] Optionally, the mesh diameter of the water collection network is less than 1 mm, and the buffer well is provided with a cooling component for absorbing heat from the water collection network.

[0014] By adopting the above technical solution, the cooling component can lower the temperature of the water collection network, so that not only the droplets can condense on the water collection network, but also the water mist generated by evaporation can condense on the water collection network, thereby reducing the possibility of wastewater being discharged into the surrounding environment through atomization.

[0015] Optionally, the cooling assembly includes a plurality of cooling pipes, each of which is annular and has a cooling channel formed inside for unidirectional flow along an annular path. A liquid cooling medium is provided in the cooling pipe, and the water collecting network is fixed to the cooling pipe. The bottom of the cooling pipe extends downward and is buried in the lower side of the buffer well.

[0016] By adopting the above technical solution, the liquid cooling medium in the cooling pipe will vaporize after absorbing heat. At the same time, due to the unidirectional flow, the cooled cooling medium will enter the bottom of the cooling pipe, so that the cooling medium can absorb the heat of the water collection network, reduce the temperature of the water collection network, and optimize the water collection effect.

[0017] Optionally, a buffer net is provided at the bottom of the buffer well, and the buffer net is provided with a suspension member for suspending the buffer net in the wastewater.

[0018] By adopting the above technical solution, excessively fast water flow rate will still cause scouring of the inner wall of the buffer well, and the buffer net can significantly increase the resistance to the flow of wastewater at the bottom of the buffer well, thereby slowing down the scouring of the inner wall of the buffer well; at the same time, the buffer net is suspended in the wastewater through the suspension parts. Since the angle and flow rate of the wastewater are not constant, the height of the buffer net will fluctuate and fluctuate at the bottom of the buffer well. On the one hand, it slows down the scouring of the inner wall of the buffer well, and on the other hand, it enables the bottom of the buffer well to flow as a whole under the action of the buffer net, reducing the possibility of local precipitation.

[0019] Optionally, the suspension member is an annular tubular structure and is arranged as a closed structure, and the buffer net is fixedly connected to the suspension member.

[0020] By adopting the above technical solution, the suspended part can provide buoyancy for the buffer net when immersed in wastewater.

[0021] Optionally, a guide member for limiting the flipping of the buffer net is provided in the buffer well.

[0022] By adopting the above technical solution, the possibility of the buffer net flipping over due to excessive local impact of water flow, causing the water flow to directly contact the inner wall of the buffer well, is reduced.

[0023] Optionally, the input port is provided with a blocking member for intermittently intercepting the output wastewater and allowing the wastewater to fall into the buffer well in a pulsed manner.

[0024] By adopting the above technical solution, the buffer net can fluctuate irregularly in the buffer well, reducing the possibility of the buffer net being suspended at a relatively fixed depth in the buffer well due to the impact of stable water flow, causing sedimentation at the bottom of the buffer well.

[0025] Optionally, the blocking member includes a rotating shaft rotatably connected to the input port and a plurality of blocking parts arranged around the rotating shaft, and the angles between different adjacent blocking parts are α1, α2, ..., αn, respectively; the outer ring of the blocking part is an arc-shaped structure and the curvature is β1, β2, ..., βn, respectively, then at least two different angles are set among α1, α2, ..., αn and / or at least two different curvatures are set among β1, β2, ..., βn.

[0026] By adopting the above technical solution, since the blocking part can rotate around the rotating axis and the blocking time of the blocking part is different, the volume of the blocking part is different, so that the output water flow changes irregularly within the same period, so that the buffer net can fluctuate irregularly within the same period, which has a stirring effect while maintaining the stability of the buffer.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] When in use, after being blocked by the blocking member, the wastewater will change periodically in the process of flowing downward through the drainage pipe. When the wastewater is just discharged from the flow channel, they will collide with each other, initially slowing down the impact of the fall, and falling into the wastewater and buffer net accumulated at the bottom of the buffer well. Through the floating of the wastewater and the buffer net, the erosion of the inner wall of the buffer well caused by the water flow formed by the wastewater is significantly reduced, and at the same time, the flow rate of the wastewater in the drainage pipe is slowed down, so as to achieve the purpose of reducing the erosion of the pipe and the buffer well. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a top view of the local structure in the embodiment of the present application.

[0030] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure along line AA.

[0031] Figure 3 It is a schematic diagram of the structure of the output part of the flow channel of the drainage pipe located in the buffer well in the embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the cross-sectional structure of the cooling tube in the embodiment of the present application.

[0033] Figure 5 It is a schematic diagram of the partial structure of the buffer net and the guide member in the embodiment of the present application.

[0034] Figure 6 yes Figure 2 Schematic diagram of the enlarged structure of part B.

[0035] Explanation of the reference numerals: 1. pipe group; 11. drainage pipe; 2. buffer well; 21. input port; 211. flow channel; 212. installation port; 22. output port; 23. water collection network; 24. cooling assembly; 241. cooling pipe; 242. cooling flow channel; 25. blocking member; 251. rotating shaft; 252. blocking part; 3. buffer network; 31. suspension member; 32. guide member; 321. guide column; 33. guide hole. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The present application embodiment discloses an industrial park drainage system. Figure 1 and Figure 2 The drainage system of the industrial park includes a pipe group 1 and a plurality of buffer wells 2. The pipe group 1 is used to transport wastewater from the wastewater source to the buffer well 2 or the downstream wastewater treatment plant. The pipe group 1 includes a plurality of drainage pipes 11. The drainage pipes 11 are laid in the long steep slope area to transport different types of wastewater respectively or to transport wastewater from different wastewater sources at high altitudes to the buffer well 2 or the sewage treatment plant below at the same time. That is, when in use, the drainage pipes 11 need to be adapted to the long steep slope area and be set up in an inclined manner. Among them, the buffer well 2 is used to be set in the middle of the long steep slope area, and is connected to the drainage pipes 11 on the upper and lower sides to buffer the wastewater flowing downward.

[0038] Specifically, a plurality of input ports 21 and output ports 22 are provided on the inner wall of the buffer well 2. The input ports 21 are located on the upper side of the output ports 22, and the input ports 21 are fixed one-to-one and connected to the drainage pipe 11 on the upper side of the buffer well 2; the output ports 22 are fixed one-to-one and connected to the drainage pipe 11 on the lower side of the buffer well 2.

[0039] Reference Figure 2 and Figure 3 At least two flow channels 211 are formed on the edge of the input port 21, and the wastewater output directions of the two flow channels 211 intersect, and the output direction of at least one of the flow channels 211 is inclined upward, so as to form at least two wastewater flows that impact each other. On the one hand, the wastewater can be dispersed or even atomized, so as to significantly reduce the downward flow speed and erosion; on the other hand, the kinetic energy of the wastewater in the downward flow process can be consumed through mutual impact, thereby achieving the effect of buffering the downward flow of wastewater while reducing the erosion of the drainage pipe 11 and the buffer well 2.

[0040] In this embodiment, three flow channels 211 are set as an example for explanation, the flow channel 211 in the middle is the main flow channel, and the flow channels 211 on both sides are secondary flow channels. The flow channel 211 as the main flow channel is formed by a straight pipe parallel to the drainage pipe 11; the flow channel 211 as the secondary flow channel is formed by a curved pipe that first bends downward and then bends upward and toward the flow channel 211 as the main flow channel, and the pipe where the secondary flow channel 211 is located is fixed and connected to the drainage pipe 21, so that the wastewater forms two parabolic wastewater flows that are inclined upward and can impact the wastewater discharged from the flow channel 211 as the main flow channel, thereby consuming kinetic energy while reducing the impact on the inner wall of the buffer well 2.

[0041] Reference Figure 2 and Figure 4 In addition, due to the mutual impact of water flow, it is inevitable that there is relatively more wastewater atomization. In order to reduce the direct entry of wastewater into the surrounding environment, a water collection net 23 covering the buffer well 2 and a cooling component 24 for cooling the water collection net 23 are arranged above the input port 21. Among them, the water collection net 23 is a multi-layer structure with a mesh diameter of less than 1mm, so that the water mist can fully contact the water collection net 23 when it rises and condense on the water collection net 23, while reducing the impact on the air pressure in the buffer well 2 balancing the long steep slope drainage.

[0042] The cooling assembly 24 includes a plurality of cooling pipes 241, and the plurality of cooling pipes 241 are arranged around the central axis of the buffer well 2. The cooling pipe 241 is an annular tubular structure and is arranged vertically. The bottom of the cooling pipe 241 is buried below the buffer well 2, and the middle part of the cooling pipe extends into the buffer well 2 and is fixed to the water collection network 23. A one-way cooling channel 242 is formed inside the cooling pipe 241. For example, a one-way valve is provided so that the medium in the cooling pipe 241 flows in one direction. At the same time, the cooling pipe 241 is filled with a liquid cooling medium, such as liquid ammonia, to reduce the temperature of the water collection network 23, so that the wastewater mist contacting the water collection network 23 can be condensed in time, and at the same time, part of the evaporated wastewater vapor can be intercepted.

[0043] Reference Figure 2 and Figure 3At the same time, since the falling wastewater will still fall rapidly in the buffer well 2, it will still cause certain erosion to the inner wall of the buffer well 2, especially the bottom. Therefore, the distance between the output port 22 and the bottom wall of the buffer well 2 is greater than 20 cm, preferably 30-50 cm, so that the bottom of the buffer well 2 can flow wastewater of a certain depth and serve as a secondary buffer, avoiding the falling water flow from directly scouring the inner wall of the buffer well 2. In addition, a buffer net 3 is also provided in the buffer well 2, and the buffer net 3 is suspended or floated in the wastewater at the bottom of the buffer well 2 by a suspension member 31, so as to increase the resistance of the water flow to flow up and down, thereby reducing the possibility that the wastewater at the bottom of the buffer well 2 will be partially sunken due to the continuous impact of the water flow, and the water flow will directly scour the inner wall of the buffer well 2.

[0044] The suspension member 31 is an annular tubular structure and is a closed structure. The buffer net 3 is fixedly connected to the top wall of the suspension member 31, so that the buffer net 3 can be kept suspended in the wastewater at the bottom of the buffer well 2 by the buoyancy of the suspension member 31, thereby further buffering the falling wastewater. Of course, in other embodiments, the suspension member 31 may also include multiple suspension balls fixedly connected to the buffer net 3.

[0045] In addition, in order to reduce the possibility that the buffer net 3 is turned over due to the impact of water flow, resulting in a significant reduction in the buffer effect, a guide member 32 for limiting the reversal of the buffer net 3 is provided in the buffer well 2.

[0046] Reference Figure 2 and Figure 3 The guide member 32 includes a plurality of guide columns 321 fixedly connected to the bottom of the buffer well 2, and the buffer net 3 is provided with a plurality of guide holes 33 (see Figure 5 ), and the diameter of the guide hole 33 is larger than the outer diameter of the guide column 321, so that the buffer net 3 can swing within a certain angle range without turning over, so as to maintain a sufficient buffering effect.

[0047] Finally, since the buffer net 3 is used to withstand the impact of water flow, and has a buffering effect through the buoyancy of the suspension 31 and the resistance of the buffer net 3 itself in the wastewater, if the water flow is continuous and stable, the buffer net 3 will maintain a relatively stable depth in the buffer well 2, which will not only affect the buffering effect, but also make it very easy for sediment to remain at the bottom of the buffer well 2.

[0048] Reference Figure 3 and Figure 6In order to alleviate the aforementioned problem, the input port 21 is provided with a blocking member 25 for intermittently intercepting the outputted wastewater, and the intermittent interception time is different, so that the wastewater outputted from the input port 21 is output in a pulsed manner, so that the buffer net 3 has different reset strokes under the action of the suspension member 31, on the one hand, maintaining a relatively good buffering effect; on the other hand, it can disrupt the flow of wastewater at the bottom of the buffer well 2 and reduce the possibility of sediment accumulation.

[0049] Specifically, the blocking member 25 includes a rotating shaft 251 and a plurality of blocking portions 252 arranged around the rotating shaft 251. The rotating shaft 251 is rotatably connected to the side of the flow channel 211 in the input port 21 away from the buffer well 2, and an installation port 212 for fixing the rotating shaft 251 is formed on the inner wall of the input port 21.

[0050] At the same time, the blocking part 252 is fixedly connected to the rotating shaft 251, and the angles between two adjacent blocking parts 252 are α1, α2...αn respectively; the outer ring of the blocking part 252 is an arc-shaped structure and the curvature is β1, β2...βn respectively, then at least two different angles are set in α1, α2...αn and / or at least two different curvatures are set in β1, β2...βn. In this embodiment, there are three blocking parts 252, and the curvatures corresponding to the outer walls of the three blocking parts 252 facing each other are set to three different values, for example, π / 6, π / 4 and π / 3 respectively. At the same time, the outer ring of the blocking part 252 is set to a curved surface that is coaxial with the rotating shaft 251, and the curvatures corresponding to the outer ring curved surfaces of two adjacent blocking parts 252 are different.

[0051] During the process of wastewater being input from the input port 21 to the buffer well 2, the blocking portion 252 will be driven to drive the rotating shaft 251 to rotate. At this time, due to the different curvatures of different blocking portions 252 and the different gaps between adjacent blocking portions 252, the blocking time and blocking interval of the wastewater will be different, so that the wastewater output from the input port 21 can change periodically. On the one hand, the blocking portion 252 can play a preliminary buffering role, and on the other hand, it can make the output wastewater change periodically and output irregularly within the same period, so that the buffer net 3 can follow the output wastewater flow changes under the action of the suspension 31. It can not only maintain the stable buffering effect of the buffer net 3, but also further make the wastewater at the bottom of the buffer well 2 shake irregularly, reducing the possibility of dead corner sedimentation.

[0052] The implementation principle of the embodiment of the present application is: when in use, after being blocked by the blocking member 25, the wastewater will change periodically in the process of flowing downward through the drainage pipe 11. When the wastewater just outputs the flow channel 211, they will collide with each other, initially slowing down the impact of falling, and falling into the wastewater accumulated at the bottom of the buffer well 2 and the buffer net 3. Through the floating of the wastewater and the buffer net 3, the erosion of the inner wall of the buffer well 2 caused by the water flow formed by the wastewater is significantly reduced, and at the same time, the flow rate of the wastewater in the drainage pipe 11 is slowed down.

[0053] At the same time, due to the existence of the water collection net 23, in conjunction with the cooling component 24, the waste water that is atomized due to mutual impact can be significantly reduced and can be relatively fully condensed by the water collection net 23 and fall into the buffer well 2, thereby achieving sufficient buffering of the waste water transported downward, slowing down the erosion of the drainage pipe 11 and the buffer well 2, and reducing the waste water atomized and discharged into the air.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An industrial park drainage system, characterized by: It comprises an inclined pipe group (1) and a plurality of buffer wells (2); A pipe group (1) includes a plurality of drainage pipes (11) and is used to transport wastewater from the upper part downward to a buffer well (2) or a sewage treatment plant; The buffer well (2) is provided with a plurality of input ports (21) and output ports (22) corresponding to the drainage pipe (11), wherein the input ports (21) are connected to the drainage pipe (11) located on the upper side of the buffer well (2), and the output ports (22) are connected to the drainage pipe (11) located on the lower side of the buffer well (2); At least two flow channels (211) are formed on the inner wall of the input port (21), and the output directions of at least two of the flow channels (211) are arranged to intersect; A buffer net (3) is arranged at the bottom of the buffer well (2), and the buffer net (3) is provided with a suspension member (31) for suspending the buffer net (3) in the wastewater; a guide member (32) for limiting the overturning of the buffer net (3) is arranged in the buffer well (2); The input port (21) is provided with a blocking member (25) for intermittently intercepting the output wastewater and causing the wastewater to fall into the buffer well (2) in a pulsed manner; the blocking member (25) comprises a rotating shaft (251) rotatably connected to the input port (21) and a plurality of blocking portions (252) arranged around the rotating shaft (251), and the angles between different adjacent blocking portions (252) are α1, α2, ..., αn, respectively; the outer ring of the blocking portion (252) is in an arc-shaped structure and the arcs are β1, β2, ..., βn, respectively, and at least two different angles are set among α1, α2, ..., αn and / or at least two different arcs are set among β1, β2, ..., βn.

2. The industrial park drainage system according to claim 1, characterized in that: The output port (22) is lower than the input port (21), and the distance between the output port (22) and the bottom of the buffer well (2) is greater than 20 cm.

3. The industrial park drainage system according to claim 1, characterized in that: A water collection net (23) is provided above the input port (21) and covers the inner wall of the buffer well (2).

4. The industrial park drainage system according to claim 3, characterized in that: The mesh diameter of the water collection net (23) is less than 1 mm, and the buffer well (2) is provided with a cooling component (24) for absorbing heat from the water collection net (23).

5. The industrial park drainage system according to claim 4, characterized in that: The cooling assembly (24) comprises a plurality of cooling pipes (241), the cooling pipes (241) are annular and have a cooling channel (242) formed inside thereof for unidirectional flow along an annular path, a liquid cooling medium is provided inside the cooling pipes (241), and the water collection network (23) is fixed to the cooling pipes (241), and the bottom of the cooling pipes (241) extends downward and is buried at the lower side of the buffer well (2).

6. The industrial park drainage system according to claim 1, characterized in that: The suspension member (31) is an annular tubular structure and is arranged as a closed structure, and the buffer net (3) is fixedly connected to the suspension member (31).

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