CN110424519B - Construction method of self-suction municipal drainage system - Google Patents
Construction method of self-suction municipal drainage system Download PDFInfo
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- CN110424519B CN110424519B CN201910747377.6A CN201910747377A CN110424519B CN 110424519 B CN110424519 B CN 110424519B CN 201910747377 A CN201910747377 A CN 201910747377A CN 110424519 B CN110424519 B CN 110424519B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
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Abstract
The invention belongs to the technical field of municipal drainage, and particularly relates to a construction method of a self-suction municipal drainage system, which comprises the following steps: s1: excavating a strip-shaped foundation pit along the width direction of the road; s2: installing the kinetic energy recovery device in the foundation pit; s3: building energy storage device and suction device installation positions on two sides of a road; s4: installing an energy storage device and a suction device, connecting the energy storage device and the suction device, communicating one end of the suction device to the inspection wells on two sides of the low-lying pavement, and communicating the other end of the suction device to a city drainage network; s5: connecting the kinetic energy recovery device with the energy storage device; s6: and laying a deceleration strip above the kinetic energy recovery device. The invention does not need any external energy supply equipment, is a simple and efficient road surface drainage solution, can recover and utilize the braking force of the vehicle, and has great significance for environmental protection.
Description
Technical Field
The invention belongs to the technical field of municipal drainage, and particularly relates to a construction method of a self-suction municipal drainage system.
Background
With the increasing scale of cities, more and more intersections begin to build three-dimensional transportation facilities such as elevated roads and underpass so as to improve the road traffic efficiency, and with the reconstruction of the roads, the urban drainage system must be correspondingly upgraded. However, the early urban drainage network is often difficult to predict the development trend of future urban construction during construction, so that the urban drainage network is generally arranged at a shallow position from the ground surface during construction, which leads to that the road surfaces of most underpass sections are lower than the height of the original urban drainage network at present, and therefore, in order to connect the drainage system of the underpass section to the original urban drainage network, water conservancy settings such as pump stations and the like must be arranged at the sections. The existing pump station is mainly driven by electric energy, so that the construction cost is high, huge energy consumption can be generated, rainstorm weather is met, the efficiency is often not enough, the surface accumulated water is easily caused, and huge personnel and property loss is caused.
Disclosure of Invention
The invention aims to provide a construction method of a self-suction municipal drainage system capable of draining low-lying road surfaces by using vehicle braking force.
The technical scheme adopted by the invention is as follows.
A construction method of a self-suction municipal drainage system comprises the following steps:
s1: excavating a strip-shaped foundation pit along the width direction of the road;
s2: installing the kinetic energy recovery device in the foundation pit;
s3: building energy storage device and suction device installation positions on two sides of a road;
s4: installing an energy storage device and a suction device, connecting the energy storage device and the suction device, communicating one end of the suction device to the inspection wells on two sides of the low-lying pavement, and communicating the other end of the suction device to a city drainage network;
s5: connecting the kinetic energy recovery device with the energy storage device;
s6: and laying a deceleration strip above the kinetic energy recovery device.
In step S2, the kinetic energy recovery device includes a first piston cylinder vertically disposed, and an elastic return unit for driving a piston of the first piston cylinder to return upward; the elastic reset unit comprises an air spring, the air spring comprises a vertically arranged cylinder body and a double-rod piston arranged in the cylinder body in a sliding manner, and the lower end of the double-rod piston is fixedly connected with the piston of the first piston cylinder through a connecting piece; during construction, a steel frame is installed in a foundation pit, and then the first piston cylinders and the cylinder bodies of the air springs are fixed on the steel frame in sequence.
In step S3, the energy storage device and the suction device are installed in a step wall between the ground or a low-lying road surface and a normal road surface due to a drop height;
in step S4, the energy storage device includes a negative pressure tank, the pumping device includes two lifting towers, a vacuum pipeline is disposed between the two lifting towers and the negative pressure tank, a second directional valve is disposed on the vacuum pipeline, and the second directional valve is configured to enable the two lifting towers and the negative pressure tank to be alternately communicated; during construction, the two lifting towers are communicated with an inspection well beside a low-lying road surface through water pumping pipes respectively, the two lifting towers are communicated with a city drainage network through drain pipes respectively, a fifth one-way valve enabling water flow to the lifting towers in one direction from the inspection well is arranged on the water pumping pipes, and a sixth one-way valve enabling water flow to the city drainage network in one direction from the lifting towers is arranged on the drain pipes.
In step S4, the second directional valve includes a valve element and a valve housing, the valve housing is provided with a first port, a second port, a third port, a fourth port, and a valve element, the first port is communicated with the negative pressure tank, the second port and the third port are respectively communicated with a lift tower, the fourth port is communicated with the atmosphere, the valve element is rotatably disposed in the valve housing, the valve element is provided with a flow channel, and the communication state of each port can be switched between the following two stations during the rotation of the valve element: a first station, wherein a first interface is communicated with a second interface, and a third interface is communicated with a fourth interface; and a second station, wherein the first interface is communicated with the third interface, and the second interface is communicated with the fourth interface.
In step S4, a lever is disposed on a rotating shaft of the valve core, a float is disposed on each of the tops of the two lifting towers, a vertical ejector rod is connected to each float, the vertical ejector rod penetrates through the lifting tower, and a counter weight block protruding upward is disposed at the center of the lever; during assembly, the second reversing valve is ensured to be positioned in the central area between the two lifting towers, and meanwhile, the two ends of the lever respectively extend to the positions above the vertical push rods on the two lifting towers.
In step S4, a stop valve is further disposed on the pipeline between the second reversing valve and the negative pressure tank, the stop valve is a float stop valve, and the stop valve is disposed in the inspection well.
In step S2, the elasticity reset unit still includes height adjusting mechanism, height adjusting mechanism includes a overhead tank, the overhead tank includes two at least cavities, and each cavity internal gas pressure diverse, be equipped with the pipeline between the two pole piston downside cavitys of cylinder body and each cavity of overhead tank, and be equipped with first switching-over valve on the pipeline, first switching-over valve is assembled for making the two pole piston downside cavitys of cylinder body and each cavity selection intercommunication of overhead tank.
In step S5, a first air port and a second air port are provided in the upper side cavity of the piston of the first piston cylinder, and a third air port and a fourth air port are provided in the lower side cavity of the piston of the first piston cylinder; during construction, the first air port is communicated with the negative pressure tank through a pipeline, the second air port is communicated with atmosphere, the first air port is provided with a first check valve which enables air flow to only flow from the negative pressure tank to the piston cylinder, and the second air port is provided with a second check valve which enables air flow to only flow from the piston cylinder to atmosphere; the third air port is respectively communicated with each cavity of the pressure tank, the fourth air port is communicated with the atmosphere, the third air port is provided with a third one-way valve which enables air flow to each cavity only from the cavity on the lower side of the piston of the first piston cylinder, the fourth air port is provided with a fourth one-way valve which enables air flow to the cavity on the lower side of the piston of the first piston cylinder only from the atmosphere, and meanwhile, each cavity is respectively provided with a pressure regulating valve which enables each cavity to keep different pressures; first switching-over valve is cursory switching-over valve, and first switching-over valve sets up in the inspection shaft of low-lying road surface side, and first switching-over valve is assembled for can be along with the liquid level of drainage runner rises control air spring and communicate with the cavity of higher pressure in proper order.
In step S6, the deceleration strip includes an arch-shaped soft rubber strip, and during construction, horizontal clamping grooves are formed in two sides of the top of the foundation pit, and then the front and rear sides of the deceleration strip are plugged into the clamping grooves, so that the deceleration strip can move in the horizontal clamping grooves.
The invention has the technical effects that: the invention utilizes the kinetic energy recovery device arranged below the deceleration strip to recover and temporarily store the kinetic energy of the automobile in the energy storage device, the energy storage device can provide continuous suction force for the suction device, so that the suction device pumps accumulated water in a low-lying road section into a city drainage network.
Drawings
FIG. 1 is a schematic diagram of a low-lying pavement drainage system provided by an embodiment of the present invention;
FIG. 2 is a perspective view of a drainage system for low-lying road surfaces according to an embodiment of the present invention;
FIG. 3 is a top view of a low-lying pavement drainage system provided by an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a suction device provided by an embodiment of the present invention;
FIG. 5 is a perspective view of a drainage system provided in accordance with an embodiment of the present invention with the roadway structure concealed;
FIG. 6 is a schematic diagram of a second reversing valve provided by an embodiment of the invention;
FIG. 7 is a cross-sectional view of a kinetic energy recovery device provided in an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a kinetic energy recovery device provided in accordance with an embodiment of the present invention in an energy absorbing state;
fig. 9 is a perspective view of a kinetic energy recovery device provided in an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.
Example 1
As shown in fig. 1, 2 and 3, the low-lying road surface drainage system based on kinetic energy recovery comprises a deceleration strip 10 arranged on a road surface and a kinetic energy recovery device 20 arranged below the deceleration strip 10, wherein the kinetic energy recovery device 20 is connected with an energy storage device, the energy storage device is connected with a suction device, one end of the suction device is communicated with a drainage channel of the low-lying road surface, and the other end of the suction device is communicated with a city drainage network. The invention utilizes the kinetic energy recovery device 20 arranged below the deceleration strip 10 to recover and temporarily store the kinetic energy of the automobile in the energy storage device, the energy storage device can provide continuous suction force for the suction device, so that the suction device pumps and discharges accumulated water in a low-lying road section into a city drainage network. It should be noted that speed bump 10 in the present invention is not limited to speed bump 10 in a low-lying road section, but may also be speed bump 10 disposed on all roads in a certain range nearby, and the energy recovered by speed bump 10 can be gathered through a transmission network to provide sufficient suction force to solve the problem of draining water on the low-lying road surface.
Specifically, as shown in fig. 7, 8, and 9, the kinetic energy recovery device 20 includes a first piston cylinder 21 vertically disposed, a piston of the first piston cylinder 21 is abutted to the lower end of the deceleration strip 10 through a transmission member, the energy storage device includes a negative pressure tank 30, a first air port and a second air port are disposed on a cavity on the upper side of the piston of the first piston cylinder 21, the first air port is communicated with the negative pressure tank 30 through a pipeline, the second air port is communicated with the atmosphere, a first check valve 211 enabling air flow to flow from the negative pressure tank 30 to the piston cylinder is disposed on the first air port, and a second check valve 212 enabling air flow to flow from the piston cylinder to the atmosphere is disposed on the second air port. The kinetic energy recovery device 20 further comprises an elastic reset unit for driving the piston of the first piston cylinder 21 to reset upwards; the elastic reset unit comprises an air spring 22, the air spring 22 comprises a vertically arranged cylinder body and a double-rod piston arranged in the cylinder body in a sliding mode, the upper end of the double-rod piston is abutted to the lower end of the deceleration strip 10, and the lower end of the double-rod piston is fixedly connected with the piston of the first piston cylinder 21 through a connecting piece. When a vehicle drives through the speed bump 10, the double-rod piston of the air spring 22 is pressed down, the double-rod piston drives the piston of the first piston cylinder 21 to move downwards, the upper side cavity of the piston sucks the negative pressure tank 30 at the moment, after the vehicle drives away, the piston of the first piston cylinder 21 is reset upwards under the action of the air spring 22, the first air port of the upper side cavity of the piston is closed at the moment, the second air port is communicated, and air in the upper side cavity is exhausted into the atmosphere.
Further, as shown in fig. 1 and 7, the elastic reset unit further includes a height adjusting mechanism, the height adjusting mechanism includes a pressure tank 23, the pressure tank 23 includes at least two chambers, and the air pressure in each chamber is different, a pipeline is provided between the lower side cavity of the double-rod piston of the cylinder body and each chamber of the pressure tank 23, and a first direction valve 24 is provided on the pipeline, the first direction valve 24 is assembled to enable the lower side cavity of the double-rod piston of the cylinder body to be alternatively communicated with each chamber of the pressure tank 23; a third air port and a fourth air port are arranged on the cavity on the lower side of the piston of the first piston cylinder 21, the third air port is respectively communicated with each cavity of the pressure tank 23, the fourth air port is communicated with the atmosphere, a third check valve 213 which enables air flow to each cavity only from the cavity on the lower side of the piston of the first piston cylinder 21 is arranged on the third air port, a fourth check valve 214 which enables air flow to the cavity on the lower side of the piston of the first piston cylinder 21 only from the atmosphere is arranged on the fourth air port, and pressure regulating valves which enable each cavity to keep different pressures are respectively arranged on each cavity. The height adjusting mechanism is another innovative point of the present invention, and has two main functions, namely, the height of the speed bump 10 can be adjusted to limit the speed of the vehicle to different degrees under different conditions, and the movement stroke of the first piston cylinder 21 can be adjusted to control the pumping efficiency of the first piston cylinder 21 under different conditions. For example: when the weather is sunny and the road condition is better, the vehicle is allowed to run at a higher speed, and at the moment, the double-rod piston of the air spring 22 can be lowered, so that the height of the speed bump 10 is lowered; meanwhile, the stroke of the first piston cylinder 21 is shortened, the pumping efficiency is reduced, and the situation that the energy storage device is overloaded and the pumping device does not work in sunny weather can be avoided; in heavy rain, the road condition is poor, the vehicle is required to run at a low speed, and at the moment, the double-rod piston of the air spring 22 can be lifted, so that the height of the speed bump 10 is increased; at the same time, the stroke of the first piston cylinder 21 becomes longer, and the pumping efficiency becomes higher, which can provide more pumping force to the pumping device to ensure the drainage efficiency. In addition, the high-pressure air source for adjusting the height of the air spring 22 comes from the kinetic energy recovery device 20, and any external energy supply equipment is still not needed.
Further, as shown in fig. 1, 4 and 5, the first direction changing valve 24 is a float direction changing valve, the first direction changing valve 24 is disposed in a drain flow passage of a low-lying road surface, and the first direction changing valve 24 is configured to control the air springs 22 to communicate with chambers of higher pressure in sequence as the liquid level of the drain flow passage rises. This embodiment enables automatic control of the height of the air spring 22, namely: in sunny and rainy days, accumulated water in the drainage flow channel is less, the float reversing valve is in the lower position, the air spring 22 is communicated with the low-pressure chamber of the pressure tank 23, and then the double-rod piston of the air spring 22 is in the lower position; in rainy days, the accumulated water in the drainage flow channel is more, the float reversing valve is positioned at the upper position, the air spring 22 is communicated with the high-pressure chamber of the pressure tank 23, and then the double-rod piston of the air spring 22 is positioned at the higher position.
Preferably, the deceleration strip 10 comprises an arched rubber soft strip, the first piston cylinder 21 and the air springs 22 are installed in a foundation pit formed below the deceleration strip 10, the first piston cylinder 21 and the air springs 22 are arranged in a plurality along the length direction of the deceleration strip 10, a pressing block 25 is arranged at the upper end of a piston rod of each air spring 22, the top surface of each pressing block 25 is arc-shaped, the top surface of each pressing block 25 is abutted to the bottom surface of the deceleration strip 10, and the pressing blocks 25 on adjacent air springs 22 form sliding fit through a T-shaped block 251 and a T-shaped groove 252 which are vertically arranged; the front side and the rear side of the deceleration strip 10 are movably matched with a horizontal clamping groove 13 arranged at the edge of the top of the foundation pit. Each first piston cylinder 21 and each air spring 22 can independently act, the flexibility of the kinetic energy recovery device 20 is improved, the response speed is high, meanwhile, each first piston cylinder 21 and each air spring 22 are mutually related and are limited, and the structural stability of the device is improved.
Preferably, as shown in fig. 1, the drainage channel includes a drainage channel 11 disposed on one side of the road surface and a manhole 12 communicated with the drainage channel 11, an annular grid 121 is disposed in the center of the manhole 12, and the suction device is communicated with a space inside the annular grid 121.
Preferably, as shown in fig. 1 to 6, the suction device comprises two lifting towers 40, a vacuum pipeline is arranged between the two lifting towers 40 and the negative pressure tank 30, a second reversing valve 32 is arranged on the vacuum pipeline, and the second reversing valve 32 is arranged to enable the two lifting towers 40 to be communicated with the negative pressure tank 30 alternately; be equipped with drinking-water pipe 41 between lift tower 40 and the drainage runner, be equipped with drain pipe 42 between lift tower 40 and the urban drainage network, be equipped with on the drinking-water pipe 41 and make rivers from the drainage runner to lift tower 40 one-way flow's fifth check valve 411, be equipped with on the drain pipe 42 and make rivers from lift tower 40 to urban drainage network one-way flow's sixth check valve 421. The working principle of the single lifting tower 40 is: firstly, the negative pressure tank 30 performs air extraction on the lifting tower 40, at the moment, the drain pipe 42 is closed, the water pumping pipe 41 is communicated, so that accumulated water in the inspection well 12 is sucked into the lifting tower 40, when the water level in the lifting tower 40 reaches a certain height, a pipeline between the negative pressure tank 30 and the lifting tower 40 is closed, at the moment, the water pumping pipe 41 is closed under the siphon action, the drain pipe 42 is communicated, and the accumulated water in the lifting tower 40 is discharged into an urban drainage network; the embodiment is provided with two lifting towers 40 and controls the negative pressure tank 30 to be alternatively communicated with the two lifting towers, so that the accumulated water is continuously pumped and drained.
Specifically, as shown in fig. 6, the second direction valve 32 includes a valve core 326 and a valve housing 325, the valve housing 325 is provided with a first port 321, a second port 322, a third port 323, and a fourth port 324, where the first port 321 is communicated with the negative pressure tank 30, the second port 322 and the third port 323 are respectively communicated with a lift tower 40, the fourth port 324 is communicated with the atmosphere, the valve core 326 is rotatably disposed in the valve housing 325, the valve core 326 is provided with a flow passage, and during the rotation of the valve core 326, the communication state of each port can be switched between the following two stations: in the first station, the first port 321 is communicated with the second port 322, and the third port 323 is communicated with the fourth port 324; in the second station, the first port 321 is communicated with the third port 323, and the second port 322 is communicated with the fourth port 324; a lever 327 is arranged on a rotating shaft of the valve core 326, two ends of the lever 327 extend to the upper parts of the two lifting towers 40 respectively, the tops of the two lifting towers 40 are respectively provided with a float 329, the float 329 is connected with a vertical ejector rod 3291, the vertical ejector rod 3291 penetrates to the upper part of the lifting tower 40, and the vertical ejector rod 3291 is arranged corresponding to the end part of the lever 327; the lever 327 further has a weight 328 protruding upward at the center. The working principle of the second direction valve 32 is as follows: when the water drainage is started, one of the lifting towers 40 is communicated with the negative pressure tank 30, the end part of the lever 327 above the lifting tower 40 is in a low position, the lifting tower 40 continuously rises along with the suction water level of the negative pressure tank 30 until the end part of the lever 327 is lifted by the float 329 in the lifting tower 40, at the moment, the lifting tower 40 is disconnected with the negative pressure tank 30, the other lifting tower 40 is communicated with the negative pressure tank 30, and the automatic alternate drainage of the two lifting towers 40 can be realized by repeating the process. The embodiment of the present invention, which is provided with a weight above the lever 327, enables the lever 327 to turn to which side and then stay on the side until the lever 327 is lifted by the float 329, so that the uncontrolled swing of the lever 327 can be avoided, and the accidental disconnection of the lift tower 40 from the negative pressure tank 30 during the suction process can be prevented.
Further, still be equipped with stop valve 31 on the pipeline between second switching-over valve 32 and the negative pressure jar 30, stop valve 31 is cursory stop valve 31, stop valve 31 sets up in the drainage runner, and stop valve 31 is used for the break-make between two lift towers 40 and the negative pressure jar 30 of simultaneous control, adopts cursory stop valve 31 and sets up it in inspection shaft 12, can realize suction device's automatic control, makes suction device open according to the weather condition is automatic to be stopped.
Example 2
A construction method of a self-suction municipal drainage system comprises the following steps:
s1: excavating a strip-shaped foundation pit along the width direction of the road;
s2: installing the kinetic energy recovery device 20 in the foundation pit;
s3: building energy storage device and suction device installation positions on two sides of a road;
s4: installing an energy storage device and a suction device, connecting the energy storage device and the suction device, communicating one end of the suction device to the inspection wells 12 on two sides of the low-lying road surface, and communicating the other end of the suction device to the urban drainage network;
s5: connecting the kinetic energy recovery device 20 with an energy storage device;
s6: the speed bump 10 is laid above the kinetic energy recovery device 20.
In step S2, the kinetic energy recovery device 20 includes a first piston cylinder 21 disposed vertically, and an elastic return unit for returning the piston of the first piston cylinder 21 upward; the elastic reset unit comprises an air spring 22, the air spring 22 comprises a vertically arranged cylinder body and a double-rod piston arranged in the cylinder body in a sliding manner, and the lower end of the double-rod piston is fixedly connected with the piston of the first piston cylinder 21 through a connecting piece; during construction, a steel frame is installed in a foundation pit, and then the first piston cylinders 21 and the cylinder bodies of the air springs 22 are fixed on the steel frame in sequence.
In step S3, the energy storage device and the suction device are installed in a step wall between the ground or a low-lying road surface and a normal road surface due to a drop height;
in step S4, the energy storage device includes a negative pressure tank 30, the suction device includes two lifting towers 40, a vacuum pipeline is arranged between the two lifting towers 40 and the negative pressure tank 30, a second direction valve 32 is arranged on the vacuum pipeline, and the second direction valve 32 is configured to enable the two lifting towers 40 to be alternately communicated with the negative pressure tank 30; during construction, the two lifting towers 40 are respectively communicated with the inspection well 12 beside a low-lying road surface through the water pumping pipes 41, the two lifting towers 40 are respectively communicated with the urban drainage network through the water draining pipes 42, the water pumping pipes 41 are provided with fifth one-way valves 411 which can enable water flow to flow from the inspection well 12 to the lifting towers 40 in one way, and the water draining pipes 42 are provided with sixth one-way valves 421 which can enable water flow to flow from the lifting towers 40 to the urban drainage network in one way.
In step S4, the second direction valve 32 includes a valve core 326 and a valve housing 325, the valve housing 325 is provided with a first port 321, a second port 322, a third port 323, a fourth port 324, and a valve core 326, where the first port 321 is communicated with the negative pressure tank 30, the second port 322 and the third port 323 are respectively communicated with a lift tower 40, the fourth port 324 is communicated with the atmosphere, the valve core 326 is rotatably disposed in the valve housing 325, the valve core 326 is provided with a flow passage, and during rotation of the valve core 326, the communication state of each port can be switched between the following two stations: in the first station, the first port 321 is communicated with the second port 322, and the third port 323 is communicated with the fourth port 324; in station two, the first port 321 communicates with the third port 323, and the second port 322 communicates with the fourth port 324.
In step S4, a lever 327 is disposed on a rotation shaft of the valve core 326, a float 329 is disposed at each of tops of the two lifting towers 40, the float 329 is connected with a vertical post rod 3291, the vertical post rod 3291 penetrates above the lifting tower 40, and a counter weight 328 protruding upward is further disposed at a center of the lever 327; during assembly, the second direction valve 32 is ensured to be located in the central region between the two lifting towers 40, and both ends of the lever 327 respectively extend to the upper portions of the vertical push rods 3291 of the two lifting towers 40.
In step S4, a stop valve 31 is further disposed on a pipeline between the second direction valve 32 and the negative pressure tank 30, the stop valve 31 is a float stop valve 31, and the stop valve 31 is disposed in the inspection well 12.
In step S2, the elastic reset unit further includes a height adjusting mechanism, the height adjusting mechanism includes a pressure tank 23, the pressure tank 23 includes at least two chambers, and the air pressure in each chamber is different, a pipeline is provided between the lower side cavity of the double-rod piston of the cylinder body and each chamber of the pressure tank 23, and a first direction valve 24 is provided on the pipeline, the first direction valve 24 is assembled to enable the lower side cavity of the double-rod piston of the cylinder body to communicate with each chamber of the pressure tank 23 by one selection.
In step S5, a first air port and a second air port are provided in the upper side cavity of the piston of the first piston cylinder 21, and a third air port and a fourth air port are provided in the lower side cavity of the piston of the first piston cylinder 21; during construction, the first air port is communicated with the negative pressure tank 30 through a pipeline, the second air port is communicated with the atmosphere, a first check valve 211 enabling air flow to only flow from the negative pressure tank 30 to the piston cylinder is arranged on the first air port, and a second check valve 212 enabling air flow to only flow from the piston cylinder to the atmosphere is arranged on the second air port; the third ports are communicated with the chambers of the pressure tank 23, the fourth ports are communicated with the atmosphere, the third ports are provided with third check valves 213 which enable the air flow to flow only from the cavity on the lower side of the piston of the first piston cylinder 21 to the chambers, the fourth ports are provided with fourth check valves 214 which enable the air flow to flow only from the atmosphere to the cavity on the lower side of the piston of the first piston cylinder 21, and the chambers are provided with pressure regulating valves which enable the chambers to maintain different pressures; the first reversing valve 24 is a floating reversing valve, the first reversing valve 24 is arranged in the inspection well 12 beside a low-lying road surface, and the first reversing valve 24 is assembled to control the air springs 22 to be communicated with a chamber with higher pressure in sequence along with the rising of the liquid level of the drainage flow channel.
In step S6, the speed bump 10 includes an arch-shaped soft rubber strip, and during construction, horizontal clamping grooves 13 are first formed in two sides of the top of the foundation pit, and then the front and rear sides of the speed bump 10 are plugged into the clamping grooves, so that the speed bump 10 can move in the horizontal clamping grooves 13.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (8)
1. A construction method of a self-suction municipal drainage system is characterized by comprising the following steps:
s1: excavating a strip-shaped foundation pit along the width direction of the road;
s2: installing a kinetic energy recovery device (20) in the foundation pit;
s3: building energy storage device and suction device installation positions on two sides of a road;
s4: an energy storage device and a suction device are installed and connected, one end of the suction device is communicated to inspection wells (12) on two sides of a low-lying road surface, and the other end of the suction device is communicated to a city drainage network;
s5: connecting the kinetic energy recovery device (20) with the energy storage device;
s6: laying a deceleration strip (10) above the kinetic energy recovery device (20);
in step S4, the energy storage device includes a negative pressure tank (30), the suction device includes two lifting towers (40), a vacuum pipeline is arranged between the two lifting towers (40) and the negative pressure tank (30), a second direction valve (32) is arranged on the vacuum pipeline, and the second direction valve (32) is configured to enable the two lifting towers (40) and the negative pressure tank (30) to be communicated alternately; during construction, the two lifting towers (40) are respectively communicated with an inspection well (12) beside a low-lying road surface through water pumping pipes (41), the two lifting towers (40) are respectively communicated with a city drainage network through water draining pipes (42), fifth one-way valves (411) capable of enabling water flow to the lifting towers (40) from the inspection well (12) in one way are arranged on the water pumping pipes (41), and sixth one-way valves (421) capable of enabling water flow to the city drainage network from the lifting towers (40) in one way are arranged on the water draining pipes (42);
the second reversing valve (32) comprises a valve core (326) and a valve casing (325), wherein a first interface (321), a second interface (322), a third interface (323), a fourth interface (324) and the valve core (326) are arranged on the valve casing (325), the first interface (321) is communicated with the negative pressure tank (30), the second interface (322) and the third interface (323) are respectively communicated with a lifting tower (40), the fourth interface (324) is communicated with the atmosphere, the valve core (326) is rotatably arranged in the valve casing (325), a flow channel is arranged on the valve core (326), and the valve core (326) can enable the communication state of each interface to be switched between the following two stations in the rotating process: the first station is characterized in that a first interface (321) is communicated with a second interface (322), and a third interface (323) is communicated with a fourth interface (324); and in the second station, the first interface (321) is communicated with the third interface (323), and the second interface (322) is communicated with the fourth interface (324).
2. The construction method of the self-priming municipal drainage system according to claim 1, characterized in that: in step S2, the kinetic energy recovery device (20) includes a first piston cylinder (21) vertically disposed, and an elastic return unit for returning a piston driving the first piston cylinder (21) upward; the elastic reset unit comprises an air spring (22), the air spring (22) comprises a vertically arranged cylinder body and a double-rod piston arranged in the cylinder body in a sliding manner, and the lower end of the double-rod piston is fixedly connected with the piston of the first piston cylinder (21) through a connecting piece; during construction, a steel frame is installed in a foundation pit, and then the first piston cylinders (21) and the cylinder bodies of the air springs (22) are fixed on the steel frame in sequence.
3. The method of construction of the self-priming municipal drainage system of claim 2, wherein: in step S3, the energy storage device and the suction device are installed in a step wall formed by a drop height between the ground or the low-lying road surface and the normal road surface.
4. The construction method of the self-priming municipal drainage system according to claim 1, characterized in that: in step S4, a lever (327) is disposed on a rotation shaft of the valve core (326), a float (329) is disposed at each of tops of the two lifting towers (40), a vertical ejector rod (3291) is connected to the float (329), the vertical ejector rod (3291) penetrates above the lifting tower (40), and a counterweight (328) protruding upward is further disposed at a center of the lever (327); during assembly, the second reversing valve (32) is ensured to be positioned in the central area between the two lifting towers (40), and meanwhile, the two ends of the lever (327) respectively extend to the upper parts of the vertical push rods (3291) on the two lifting towers (40).
5. The method of construction of the self-priming municipal drainage system of claim 4, wherein: in step S4, a stop valve (31) is further arranged on a pipeline between the second reversing valve (32) and the negative pressure tank (30), the stop valve (31) is a float stop valve (31), and the stop valve (31) is arranged in the inspection well (12).
6. The method of construction of the self-priming municipal drainage system of claim 2, wherein: in step S2, the elasticity reset unit still includes height adjusting mechanism, height adjusting mechanism includes a overhead tank (23), overhead tank (23) include two at least cavities, and each cavity internal gas pressure diverse, be equipped with the pipeline between the two pole piston downside cavitys of cylinder body and each cavity of overhead tank (23), and be equipped with first switching-over valve (24) on the pipeline, first switching-over valve (24) are assembled for making the two pole piston downside cavitys of cylinder body and each cavity alternative intercommunication of overhead tank (23).
7. The method of construction of the self-priming municipal drainage system of claim 6, wherein: in step S5, a first air port and a second air port are provided on the upper side cavity of the piston of the first piston cylinder (21), and a third air port and a fourth air port are provided on the lower side cavity of the piston of the first piston cylinder (21); during construction, the first air port is communicated with the negative pressure tank (30) through a pipeline, the second air port is communicated with the atmosphere, a first check valve (211) enabling air flow to only flow from the negative pressure tank (30) to the piston cylinder is arranged on the first air port, and a second check valve (212) enabling air flow to only flow from the piston cylinder to the atmosphere is arranged on the second air port; a third air port is communicated with each chamber of the pressure tank (23), a fourth air port is communicated with the atmosphere, the third air port is provided with a third one-way valve (213) which enables air flow to each chamber only from the cavity below the piston of the first piston cylinder (21), the fourth air port is provided with a fourth one-way valve (214) which enables air flow to the cavity below the piston of the first piston cylinder (21) only from the atmosphere, and each chamber is provided with a pressure regulating valve which enables each chamber to keep different pressures; the first reversing valve (24) is a floating reversing valve, the first reversing valve (24) is arranged in an inspection well (12) beside a low-lying road surface, and the first reversing valve (24) is assembled to control the air spring (22) to be communicated with a chamber with higher pressure in sequence along with the rising of the liquid level of the drainage flow channel.
8. The method of construction of the self-priming municipal drainage system of claim 7, wherein: in step S6, the deceleration strip (10) includes an arched soft rubber strip, and during construction, horizontal clamping grooves (13) are first formed in two sides of the top of the foundation pit, and then the front side and the rear side of the deceleration strip (10) are plugged into the clamping grooves, so that the deceleration strip (10) can move in the horizontal clamping grooves (13).
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| CN201910747377.6A CN110424519B (en) | 2019-08-14 | 2019-08-14 | Construction method of self-suction municipal drainage system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2663548Y (en) * | 2003-10-20 | 2004-12-15 | 陈均 | Negative pressure gathering tank |
| CN202969283U (en) * | 2012-04-13 | 2013-06-05 | 郭锋远 | Vehicle pressing type culvert draining device |
| DE102012214569B3 (en) * | 2012-08-16 | 2013-10-31 | Ford Global Technologies, Llc | Self-pumping air spring- and damper unit for height adjustment of vehicle body relative to wheel suspension of vehicle, has connecting valve and throttle valve, particularly switchable valves, where working space is aerated to atmosphere |
| KR101614831B1 (en) * | 2014-06-13 | 2016-04-26 | 김일호 | Energy Generating Apparatus using Speed Bump |
| CN204253095U (en) * | 2014-11-19 | 2015-04-08 | 辽宁工程技术大学 | A kind of coal mine gas extraction pipeline Auto-drainage slag-draining device |
| CN204572368U (en) * | 2015-04-28 | 2015-08-19 | 陈玉钰 | A kind of pavement generating set |
| CN205135928U (en) * | 2015-10-20 | 2016-04-06 | 江苏大学 | A energy conversion device for road surface deceleration strip energy recuperation |
| CN105240231B (en) * | 2015-10-30 | 2017-11-17 | 江苏大学 | A kind of highway speed bump energy retracting device |
| CN108317134B (en) * | 2018-02-09 | 2019-10-01 | 东北大学 | A kind of deceleration strip energy utilization device based on hydraulic circuit |
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