CN111535434B - Urban drainage system - Google Patents
Urban drainage system Download PDFInfo
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- CN111535434B CN111535434B CN202010388277.1A CN202010388277A CN111535434B CN 111535434 B CN111535434 B CN 111535434B CN 202010388277 A CN202010388277 A CN 202010388277A CN 111535434 B CN111535434 B CN 111535434B
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- 238000007789 sealing Methods 0.000 claims abstract description 39
- 238000013016 damping Methods 0.000 claims abstract description 9
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 238000007667 floating Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 9
- 230000000630 rising effect Effects 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
- E03F7/04—Valves for preventing return flow
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/08—Ventilation of sewers
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Barrages (AREA)
Abstract
The invention belongs to the technical field of urban drainage, and particularly relates to an urban drainage system, which comprises a cylindrical door body; one side of the door body is fixedly connected with a flange plate, the other side of the door body is provided with an inclined contact surface, and a rubber sealing ring is arranged on the contact surface; the top of the door body is hinged with a door cover through a support, and the door cover is used for sealing the door body; a group of sliding holes are formed in the contact surface, a piston is connected in the sliding holes in a sliding and sealing mode, one side, close to the contact surface, of the piston is fixedly connected with a push rod, and the push rod extends to the outside of the door body; a group of damping holes are uniformly distributed on the circumference of the piston, and a spring is fixedly connected between the piston and the bottom of the sliding hole; the piston is soaked in the hydraulic oil in the sliding hole; the ejector rod is jacked by the door cover, so that the rotating speed of the door cover is reduced, and the rigid impact of the door body is reduced; reduce the wearing and tearing of sealing washer, and then increase the leakproofness of door closure and door body.
Description
Technical Field
The invention belongs to the technical field of urban drainage, and particularly relates to an urban drainage system.
Background
The urban drainage is a drainage mode for collecting, conveying, treating and discharging urban sewage and rainwater by an urban drainage system.
The urban sewage drainage system generally refers to a drainage system mainly used for collecting and discharging domestic sewage, and mainly comprises the following parts:
(1) indoor drainage system and equipment. Various indoor sanitary appliances (such as a toilet, a sewage tank, a washbasin and the like) and drainage equipment in a production workshop play a role in collecting sewage and wastewater, and the various indoor sanitary appliances and the drainage equipment are the starting ends of the whole drainage system. Domestic sewage and industrial wastewater flow into a sewage pipe and canal system of a block (plant, block or courtyard) through indoor sewage pipe systems such as water seal pipes, branch pipes, vertical pipes, main pipes, house outlet pipes and the like laid indoors.
(2) Outdoor sewage drainage system. The outdoor sewage drainage system mainly comprises a block sewage drainage system and a street sewage drainage system.
(3) Sewage pumping station and pipeline under pressure. In a pipeline system, sewage at a low position is often required to be lifted upwards, so that a pump station is required to be arranged, the pump station arranged in the midway of the pipeline system is called a midway pump station, and the pump station arranged at the terminal of the pipeline system is called a terminal pump station. And a pressure pipeline is arranged for pressure conveying of sewage behind the pump station if necessary.
(4) A sewage treatment plant. The urban sewage treatment plant is an important component of urban construction and is an indispensable public facility for urban production and people's life. The task of the treatment plant is to carefully carry out the guidelines for production and for the life of people. The efficiency of the existing equipment is fully exerted, the urban sewage is treated according to the design requirement, the pollution is reduced, and the environment is improved.
(5) An outlet and an accident outlet. The discharge port is an outlet for discharging sewage into a water body and is terminal equipment of the whole urban drainage system; the accident discharge port is a part which is easy to break down in the middle of a pipeline system, and is often provided with an auxiliary water outlet (channel), and when the fault occurs and sewage cannot circulate, the sewage coming from the upstream is discharged. If the water outlet is arranged in front of the sewage pump station, sewage can be discharged from the accident water outlet when the pump station is overhauled.
Door slapping: mainly installed at the tail end of the drainage pipeline and used for preventing external water from flowing backwards. The material is divided into various materials such as stainless steel, cast iron, shaped steel, composite material (glass fiber reinforced plastics), etc., some technical schemes related to flap gate have appeared in the prior art, as Chinese patent with application number 2014103106722 discloses a circular flap gate, including opening the round door body with runner, fixed with the cylindrical tube body on the outer wall of said round door body, the longitudinal central cross-section of the said tube body is the ladder-shaped structure with short top and long bottom, the outer end surface of the said tube body forms the oblique runner port, the top of the said door body is hinged with top of the hinge arm through the upper pivot, the said bottom of hinge arm is hinged with door plant through the lower pivot, when the door plant is closed, the said door plant is in sealed contact with outer end surface of the tube body; an adjusting device is arranged between the top end of the hinged arm and the door body; and the bottom end of the hinged arm is provided with an adjusting screw rod. The invention adopts the design of upper and lower double pivots, can flexibly adjust the force arm for opening the door plate and the flatness between the door plate and the sealing ring according to the actual working condition, and achieves better opening, closing and sealing effects; however, when the drainage work is not performed in the drainage pipeline for a long time, sludge and impurities accumulated in the drainage pipeline are continuously fermented to generate methane, so that the concentration of the methane pipeline in the drainage pipeline is continuously increased, and serious safety threat is caused.
Disclosure of Invention
The urban drainage system comprises a drainage pipeline, a column, a flap valve, a support, a water flow passage, a flap valve, a water flow passage, a water flow.
The technical scheme adopted by the invention for solving the technical problems is as follows: the urban drainage system comprises a cylindrical door body; one side of the door body is fixedly connected with a flange plate, the other side of the door body is provided with an inclined contact surface, and a rubber sealing ring is arranged on the contact surface; the top of the door body is hinged with a door cover through a support, and the door cover is used for sealing the door body; a group of sliding holes are formed in the contact surface, a piston is connected in the sliding holes in a sliding and sealing mode, one side, close to the contact surface, of the piston is fixedly connected with a push rod, and the push rod extends to the outside of the door body; a group of damping holes are uniformly distributed on the circumference of the piston, and a spring is fixedly connected between the piston and the bottom of the sliding hole; the piston is soaked in the hydraulic oil in the sliding hole; the ejector rod is jacked by the door cover, so that the rotating speed of the door cover is reduced, and the rigid impact of the door body is reduced; when the drainage pump is started in the urban drainage process, air in the drainage pipeline is quickly discharged through the flap valve at the tail end of the drainage pipeline, a large amount of air flows through the door body of the flap valve, so that the door cover is continuously jacked up, when the door cover is jacked up to a certain height, the door cover rotates around the support under the action of self gravity and then falls down, the door cover is repeatedly jacked up and falls down until the air in the drainage pipeline is completely discharged and then flows through water flow, the door cover impacts the door body in the continuous falling process, so that a sealing ring arranged on a contact surface of the door body is quickly worn, the sealing property between the door cover and the contact surface is further reduced, and water flow of a river is caused to pour into the drainage pipeline; through the ejector pin that sets up this moment, make the door closure contact and extrude the ejector pin at whereabouts in-process, the ejector pin drives the piston when sliding in the sliding opening and removes, make the hydraulic oil in the sliding opening forced to flow through the damping hole after being extruded, and then consume the gliding kinetic energy of piston, make the falling speed of door closure reduce, avoid the door closure to strike the sealing washer on the contact surface fast, reduce the wearing and tearing of sealing washer, and then increase the leakproofness of door closure and the door body, guarantee that the flap valve has better leakproofness when not carrying out the drainage work, reduce rivers flow backward and block drainage pipe.
Preferably, the bottom of the sliding hole is provided with a first hole, and a butterfly-shaped air bag is arranged in the first hole; the ejector rod penetrates through the piston and is in sliding sealing connection with the first hole; one end of the ejector rod close to the first hole is fixedly connected with the butterfly-shaped air bag; one side of the butterfly-shaped air bag is communicated with the outside atmosphere through an exhaust pipe, the other side of the butterfly-shaped air bag is communicated with the inside of the door body through an air inlet pipe, one-way valves are arranged in the air inlet pipe and the exhaust pipe, and the push rod is pushed by the door cover to push the butterfly-shaped air bag to increase the exhaust efficiency in the door body and reduce the methane concentration; when the drainage work is not carried out in the drainage pipeline for a long time, sludge and impurities accumulated in the drainage pipeline are continuously fermented to generate methane, so that the concentration of the methane pipeline in the drainage pipeline is continuously increased, and serious safety threat is caused.
Preferably, a second hole is formed in the door cover in the vertical direction, the bottom of the second hole is communicated with the outside atmosphere through a third hole, and the third hole faces to one side far away from the door body; a fourth hole is formed in the door cover corresponding to the ejector rod and communicated with the second hole; the ejector rod is internally provided with a vent hole which is used for being communicated with the fourth hole; an annular groove is formed in the first hole and communicated with the interior of the door body through an air blowing hole; a through hole is formed in the ejector rod at a position corresponding to the annular groove and communicated with the vent hole; the air is blown into the door body through the fluctuating water outside the door cover, so that the ventilation efficiency in the door body is further increased; when the waves of rivers, lakes and seas close to the flap valve are small, a small amount of water flows enter the third hole, and the water level of the third hole continuously fluctuates along with the external waves due to the fact that the communicating vessel is far away, so that fresh air is continuously blown into the door body after the third hole, the fourth hole, the vent hole, the annular groove and the air blowing hole are sequentially formed, and the methane content in the door body is further reduced.
Preferably, the third hole is of a conical structure with a small upper part and a large lower part, and the conical third hole is used for reducing sludge blockage; when silt content is higher in the rivers outside the door closure, through No. three holes of big end down's toper structure, utilize the fluctuation and the washing away of rivers, can effectively reduce the adhesion and the jam of silt in No. three holes, guarantee the normal drum gas in No. three holes.
Preferably, the fourth hole is internally provided with an overflow groove, a cover plate fixedly connected with the top of the overflow groove is provided with a water inlet hole and a sliding groove, the sliding groove is internally connected with a floating plate in a sliding manner, and the floating plate closes the fourth hole after rising; when the water level of rivers, lakes and seas exceeds the height in the fourth hole due to tide or water rising, water flows into the overflow tank through the fourth hole, so that the floating plate rises under the action of buoyancy and closes the fourth hole after the water level in the overflow tank rises, the water is further reduced from flowing through the fourth hole and pouring into the door body, and the sealing performance of the flap valve is further improved.
Preferably, the outer edge of the door cover is fixedly connected with a group of triangular cutters, and the leakage of the door cover is reduced by cutting off branches through the cutters; through the rising and falling of cutter cooperation door closure, will block the branch between the door closure and the door body and cut off, later cooperate triangular cutting edge, extrude the branch to one side, and then further guarantee the sealed between the door closure and the door body, further reduce rivers and flow backward in the door body.
The invention has the following beneficial effects:
1. according to the urban drainage system, the piston is driven to move when the ejector rod slides in the sliding hole, so that hydraulic oil in the sliding hole is extruded and forced to flow through the damping hole, the sliding kinetic energy of the piston is further consumed, the falling speed of the door cover is reduced, the door cover is prevented from quickly impacting a sealing ring on a contact surface, the abrasion of the sealing ring is reduced, the sealing performance of the door cover and the door body is further improved, the flap valve is guaranteed to have better sealing performance when drainage work is not carried out, and the backflow of river water and the blockage of a drainage pipeline are reduced.
2. According to the urban drainage system, the door cover rotates slightly continuously, the piston and the spring are matched, the ejector rod continuously extrudes and stretches the butterfly-shaped air bag, the butterfly-shaped air bag continuously extracts air with high methane content in the door body through the air inlet pipe, then the air is exhausted to the outside atmosphere through the exhaust pipe, the methane concentration in the door body is reduced, the safety threat of methane is further reduced, and meanwhile seawater is prevented from flowing backwards through the exhaust pipe.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
in the figure: the air-conditioning door comprises a door body 1, a flange plate 11, a contact surface 12, a support 13, a door cover 2, a sliding hole 14, a piston 15, a push rod 16, a damping hole 17, a first hole 3, a butterfly-shaped air bag 31, an exhaust pipe 32, an air inlet pipe 33, a second hole 21, a third hole 22, a fourth hole 23, a vent hole 34, an annular groove 35, an air blowing hole 36, a through hole 37, an overflow groove 24, a water inlet hole 25, a sliding groove 26, a floating plate 27 and a cutter 28.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the urban drainage system of the invention comprises a cylindrical door body 1; one side of the door body 1 is fixedly connected with a flange plate 11, the other side of the door body 1 is provided with an inclined contact surface 12, and a rubber sealing ring is arranged on the contact surface 12; the top of the door body 1 is hinged with a door cover 2 through a support 13, and the door cover 2 is used for sealing the door body 1; a group of sliding holes 14 are formed in the contact surface 12, a piston 15 is connected in the sliding holes 14 in a sliding and sealing mode, a push rod 16 is fixedly connected to one side, close to the contact surface 12, of the piston 15, and the push rod 16 extends to the outside of the door body 1; a group of damping holes 17 are uniformly distributed on the circumference of the piston 15, and a spring is fixedly connected between the piston 15 and the bottom of the sliding hole 14; the piston 15 is soaked in the hydraulic oil in the slide hole 14; the ejector rod 16 is jacked by the door cover 2, so that the rotating speed of the door cover 2 is reduced, and the rigid impact of the door body 1 is reduced; when the drainage pump is started in the urban drainage process, air in the drainage pipeline is quickly discharged through the flap valve at the tail end of the drainage pipeline, a large amount of air flows through the door body 1 of the flap valve, so that the door cover 2 is continuously jacked up, when the door cover 2 is jacked up to a certain height, the door cover 2 rotates around the support 13 under the action of self gravity and then falls down, the door cover 2 is repeatedly jacked up and falls down until the air in the drainage pipeline is completely discharged and flows through water flow, the door cover 2 impacts the door body 1 in the continuous falling process, so that a sealing ring arranged on the contact surface 12 of the door body 1 is quickly worn, the sealing property between the door cover 2 and the contact surface 12 is further reduced, and water flow of rivers is caused to pour into the drainage pipeline; at this moment, through the ejector rod 16, make the door closure 2 contact and extrude ejector rod 16 at the in-process that falls, ejector rod 16 drives piston 15 and removes when sliding in slide opening 14, make hydraulic oil in slide opening 14 forced to flow through damping hole 17 after being extruded, and then consume the gliding kinetic energy of piston 15, make the falling speed of door closure 2 reduce, avoid the quick sealing washer that strikes on the contact surface 12 of door closure 2, reduce the wearing and tearing of sealing washer, and then increase the leakproofness of door closure 2 and the door body 1, guarantee that the flap valve has better leakproofness when not carrying out drainage work, reduce rivers flow backward and block drainage pipe.
As an embodiment of the invention, a first hole 3 is formed at the bottom of the slide hole 14, and a butterfly-shaped airbag 31 is arranged in the first hole 3; the ejector rod 16 penetrates through the piston 15 and is connected with the first hole 3 in a sliding and sealing mode; one end of the ejector rod 16 close to the first hole 3 is fixedly connected with the butterfly-shaped air bag 31; one side of the butterfly-shaped air bag 31 is communicated with the outside atmosphere through an exhaust pipe 32, the other side of the butterfly-shaped air bag 31 is communicated with the inside of the door body 1 through an air inlet pipe 33, one-way valves are arranged in the exhaust pipe 32 and the air inlet pipe 33, the ejector rod 16 is pushed by the door cover 2 to push the butterfly-shaped air bag 31 to increase the exhaust efficiency in the door body 1, and the methane concentration is reduced; when the drainage work is not carried out in the drainage pipeline for a long time, sludge and impurities accumulated in the drainage pipeline are continuously fermented to generate methane, so that the concentration of the methane pipeline in the drainage pipeline is continuously increased, and serious safety threat is caused, the door cover 2 can be slightly driven and rotated when the urban drainage system does not work due to waves and scouring generated by rivers, lakes and seas, the methane in the door body 1 is slightly released in a small amount, the door cover 2 is continuously and slightly rotated at the moment, and the butterfly-shaped air bag 31 is continuously extruded and stretched by the ejector rod 16 in cooperation with the piston 15 and the spring, so that the butterfly-shaped air bag 31 continuously extracts air with higher methane content in the door body 1 through the air inlet pipe 33 and then exhausts the air to the outside atmosphere through the exhaust pipe 32, the methane concentration in the door body 1 is reduced, the safety threat of the methane is further reduced, and.
As an embodiment of the invention, a second hole 21 is formed in the door cover 2 in the vertical direction, the bottom of the second hole 21 is communicated with the outside atmosphere through a third hole 22, and the third hole 22 faces to one side far away from the door body 1; a fourth hole 23 is formed in the position, corresponding to the ejector rod 16, of the door cover 2, and the fourth hole 23 is communicated with the second hole 21; a vent hole 34 is formed in the ejector rod 16, and the vent hole 34 is used for being communicated with the fourth hole 23; an annular groove 35 is formed in the first hole 3, and the annular groove 35 is communicated with the interior of the door body 1 through an air blowing hole 36; a through hole 37 is formed in the position, corresponding to the annular groove 35, of the ejector rod 16, and the through hole 37 is communicated with the vent hole 34; the water fluctuating outside the door cover 2 flows into the door body 1 to blow air, so that the ventilation efficiency in the door body 1 is further improved; when the waves of rivers, lakes and seas close to the flap valve are small, a small amount of water flows enter the third hole 22, the water level of the third hole 22 continuously fluctuates along with the external waves due to the fact that the communicating vessel is far away, fresh air is continuously blown into the door body 1 after the water level continuously fluctuates along with the external waves and then sequentially passes through the second hole 21, the fourth hole 23, the vent hole 34, the annular groove 35 and the air blowing hole 36, and therefore the content of methane in the door body 1 is further reduced.
As an embodiment of the present invention, the third hole 22 is a tapered structure with a small top and a large bottom, and the tapered third hole 22 is used for reducing sludge blockage; when silt content is higher in the rivers in the door closure 2 outside, through No. three holes 22 of big end down's toper structure, utilize the undulant and the washing away of rivers, can effectively reduce the adhesion and the jam of silt in No. three holes 22, guarantee No. three holes 22's normal drum-air.
As an embodiment of the present invention, an overflow trough 24 is formed in the fourth hole 23, a water inlet 25 and a chute 26 are formed on a cover plate fixedly connected to the top of the overflow trough 24, a floating plate 27 is slidably connected to the chute 26, and the floating plate 27 closes the fourth hole 23 after rising; when the water level of rivers, lakes and seas exceeds the height in the fourth hole 23 due to tide or water rise, water flows into the overflow groove 24 through the fourth hole 23, so that the floating plate 27 rises under the action of buoyancy after the water level in the overflow groove 24 rises and closes the fourth hole 23, water is further reduced from flowing through the fourth hole 23 and pouring into the door body 1, and the sealing performance of the flap door is further improved.
As an embodiment of the invention, a group of triangular cutters 28 is fixedly connected to the outer edge of the door cover 2, and the leakage of the door cover 2 is reduced by cutting off branches by the cutters 28; through the rising and falling of cutter 28 cooperation door closure 2, will block the branch between door closure 2 and the door body 1 and cut off, later cooperate triangular cutting edge, extrude the branch to one side, and then further guarantee the sealed between door closure 2 and the door body 1, further reduce rivers and pour into in the door body 1.
When the drainage pump works, when the drainage pump is started in the urban drainage process, air in a drainage pipeline is quickly discharged through the flap valve at the tail end of the drainage pipeline, a large amount of air flows through the door body 1 of the flap valve, so that the door cover 2 is continuously jacked up, when the door cover 2 is jacked up to a certain height, the door cover 2 rotates around the support 13 under the action of self gravity and falls down, the door cover 2 is repeatedly jacked up and falls down until the air in the drainage pipeline is completely discharged and flows through water flow, the door cover 2 impacts the door body 1 in the continuous falling process, so that a sealing ring arranged on the contact surface 12 of the door body 1 is quickly worn, the sealing property between the door cover 2 and the contact surface 12 is further reduced, and water flow of a river is caused to pour into the drainage pipeline; at this time, the door cover 2 is in contact with and extrudes the ejector rod 16 in the falling process through the arranged ejector rod 16, the piston 15 is driven to move when the ejector rod 16 slides in the sliding hole 14, hydraulic oil in the sliding hole 14 is forced to flow through the damping hole 17 after being extruded, and then the sliding kinetic energy of the piston 15 is consumed, so that the falling speed of the door cover 2 is reduced, the door cover 2 is prevented from quickly impacting a sealing ring on the contact surface 12, the abrasion of the sealing ring is reduced, the sealing performance of the door cover 2 and the door body 1 is improved, the flap valve is ensured to have better sealing performance when the flap valve does not perform drainage work, and the backflow of river water flow and the blockage of a drainage pipeline are reduced; when the drainage work is not carried out in the drainage pipeline for a long time, sludge and impurities accumulated in the drainage pipeline are continuously fermented to generate methane, so that the concentration of the methane pipeline in the drainage pipeline is continuously increased, and serious safety threat is caused, the door cover 2 can be slightly driven and rotated when the urban drainage system does not work due to waves and scouring generated by rivers, lakes and seas, the methane in the door body 1 is slightly released in a small amount, the door cover 2 is continuously and slightly rotated at the moment, and the butterfly-shaped air bag 31 is continuously extruded and stretched by the ejector rod 16 in cooperation with the piston 15 and the spring, so that the butterfly-shaped air bag 31 continuously extracts air with higher methane content in the door body 1 through the air inlet pipe 33 and then exhausts the air to the outside atmosphere through the exhaust pipe 32, the methane concentration in the door body 1 is reduced, the safety threat of the methane is further reduced, and; when the waves of rivers, lakes and seas close to the flap valve are small, a small amount of water flow enters the third hole 22, the water level of the third hole 22 continuously fluctuates along with the external waves due to the fact that the communicating vessel is far away, fresh air is continuously blown into the door body 1 after the water level of the third hole 22 sequentially passes through the second hole 21, the fourth hole 23, the vent hole 34, the annular groove 35 and the air blowing hole 36, and the methane content in the door body 1 is further reduced; when the silt content in the water flow outside the door cover 2 is higher, the silt in the third hole 22 can be effectively reduced by utilizing the fluctuation and the scouring of the water flow through the third hole 22 with the conical structure with the small upper part and the large lower part, and the normal air blowing of the third hole 22 is ensured; when the water level of rivers, lakes and seas exceeds the height in the fourth hole 23 due to tide or water rise, water flows into the overflow groove 24 through the fourth hole 23, so that the floating plate 27 rises under the action of buoyancy after the water level in the overflow groove 24 rises and closes the fourth hole 23, water is further reduced to flow through the fourth hole 23 and poured into the door body 1, and the sealing performance of the flap door is further improved; through the rising and falling of cutter 28 cooperation door closure 2, will block the branch between door closure 2 and the door body 1 and cut off, later cooperate triangular cutting edge, extrude the branch to one side, and then further guarantee the sealed between door closure 2 and the door body 1, further reduce rivers and pour into in the door body 1.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A municipal drainage system, characterized in that: comprising a cylindrical door body (1); a flange plate (11) is fixedly connected to one side of the door body (1), an inclined contact surface (12) is arranged on the other side of the door body (1), and a rubber sealing ring is mounted on the contact surface (12); the top of the door body (1) is hinged with a door cover (2) through a support (13), and the door cover (2) is used for sealing the door body (1); a group of sliding holes (14) are formed in the contact surface (12), a piston (15) is connected in the sliding holes (14) in a sliding and sealing mode, a push rod (16) is fixedly connected to one side, close to the contact surface (12), of the piston (15), and the push rod (16) extends to the outside of the door body (1); a group of damping holes (17) are uniformly distributed on the circumference of the piston (15), and a spring is fixedly connected between the piston (15) and the bottom of the sliding hole (14); the piston (15) is soaked in hydraulic oil in the sliding hole (14); the ejector rod (16) is jacked by the door cover (2), so that the rotating speed of the door cover (2) is reduced, and the rigid impact of the door body (1) is reduced;
a first hole (3) is formed in the bottom of the sliding hole (14), and a butterfly-shaped air bag (31) is arranged in the first hole (3); the ejector rod (16) penetrates through the piston (15) and is connected with the first hole (3) in a sliding and sealing mode; one end of the ejector rod (16) close to the first hole (3) is fixedly connected with the butterfly-shaped air bag (31); one side of the butterfly-shaped air bag (31) is communicated with the outside atmosphere through an exhaust pipe (32), the other side of the butterfly-shaped air bag (31) is communicated with the interior of the door body (1) through an air inlet pipe (33), one-way valves are arranged in the exhaust pipe (32) and the air inlet pipe (33), and the push rod (16) is pushed by the door cover (2) to push the butterfly-shaped air bag (31) to increase the exhaust efficiency in the door body (1) and reduce the methane concentration;
a second hole (21) is formed in the door cover (2) in the vertical direction, the bottom of the second hole (21) is communicated with the outside atmosphere through a third hole (22), and the third hole (22) faces to one side far away from the door body (1); a fourth hole (23) is formed in the position, corresponding to the ejector rod (16), of the door cover (2), and the fourth hole (23) is communicated with the second hole (21); a vent hole (34) is formed in the ejector rod (16), and the vent hole (34) is used for being communicated with the fourth hole (23); an annular groove (35) is formed in the first hole (3), and the annular groove (35) is communicated with the interior of the door body (1) through an air blowing hole (36); a through hole (37) is formed in the position, corresponding to the annular groove (35), of the ejector rod (16), and the through hole (37) is communicated with the vent hole (34); the water fluctuating outside the door cover (2) flows into the door body (1) to blow air, so that the ventilation efficiency in the door body (1) is further improved.
2. A municipal drainage system according to claim 1, wherein: the third hole (22) is of a conical structure with a small upper part and a large lower part, and the conical third hole (22) is used for reducing sludge blockage.
3. A municipal drainage system according to claim 2, wherein: an overflow groove (24) is formed in the fourth hole (23), a water inlet hole (25) and a sliding groove (26) are formed in a cover plate fixedly connected to the top of the overflow groove (24), a floating plate (27) is connected in the sliding groove (26) in a sliding mode, and the fourth hole (23) is sealed after the floating plate (27) rises.
4. A municipal drainage system according to claim 3, wherein: the outer edge of the door cover (2) is fixedly connected with a group of triangular cutters (28), and the branches are cut off by the cutters (28) to reduce leakage of the door cover (2).
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| CN113058312B (en) * | 2021-03-05 | 2022-07-05 | 福建省铂盾建设工程有限公司 | Hydraulic engineering environment-friendly purification and filtration equipment |
| CN114277908B (en) * | 2022-01-21 | 2023-11-17 | 徐州新大隆化工泵业制造有限公司 | Down pipe anti-backflow device |
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Address after: 048000, 1.3 kilometers north of Baofu Village, Gaodu Town, Zezhou County, Jincheng City, Shanxi Province Patentee after: China Shipbuilding (Shanxi) Ecological Construction Co.,Ltd. Country or region after: China Address before: 048000 north of Baofu village, Gaodu Town, Zezhou County, Jincheng City, Shanxi Province Patentee before: Shanxi Chuanzhong environmental economic industry development Co.,Ltd. Country or region before: China |