Gravity energy storage type large river channel sewage cleaning device and method

Abstract

The invention belongs to the field of large riverway sewage cleaning, and particularly provides a gravity energy storage type large riverway sewage cleaning device and method.The gravity energy storage type large riverway sewage cleaning device comprises a floating mechanism, an energy storage system is arranged on the upper side of the floating mechanism, and at least one operating mechanism is arranged on the side, opposite to water flow, of the floating mechanism; the energy storage system comprises a compressible water storage tank, an energy storage weight is arranged at the top of the compressible water storage tank, a water inlet of the compressible water storage tank is connected with a water pumping pump through a water supply pipeline, the operating mechanism comprises two lifting devices arranged on a bearing air bag, and the end, close to the lifting devices, of a lifting net rack is hinged to the lower ends of the lifting devices. The end, away from the lifting device, of the lifting net rack is hinged to the pull rod. The other end of the pull rod is hinged to the lifting end of the lifting device. Water flow kinetic energy is converted into gravitational potential energy through gravity energy storage, then the operating mechanism is driven to transfer and clean pollutants intercepted in a river channel, and pollutant salvage can be conducted while trash intercepting is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of large river pollution cleaning, and particularly relates to a gravity energy storage type large river pollution cleaning device and method. BACKGROUND

[0002] At present, various pollutants such as water bottles, wood, branches, algae, etc. often appear in the river during the water flow movement process, if these pollutants are not cleaned in time, the water quality will be polluted, the growth of fish in the water will be affected, and environmental pollution will be caused, if the pollutants continue to flow into the generator, the normal discharge of the unit will be affected.

[0003] At present, the pollution cleaning is mainly through salvage by human or setting up a pollution blocking device at the entrance of the hydropower station to remove the pollutants, which needs to consume a lot of human efforts and needs to apply various water tools. In addition, the pollution blocking grid at the entrance of the hydropower station can only achieve the blocking effect of the pollutants, but needs to be handled by machinery or manually, which is troublesome and has high risk coefficient.

[0004] The water level in the river changes obviously with the seasons, if a fixed device is set on the water surface to clean the pollutants, the height of the device needs to be adjusted according to the change of the water level, which is difficult to control the height and inconvenient to adjust the height of the device. The air bag device can carry heavy objects according to the size of the volume and can float on the water surface, which rises and falls with the water level, and has great development prospect in the field of river pollution blocking.

[0005] Spring energy storage operation is widely used in the electrical switch operation of equipment, and oil pressure energy storage operation is widely used in the field of mechanical brake, which can store energy in advance and provide reliable and stable action for equipment operation. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a gravity energy storage type large river pollution cleaning device and method, which can realize pollution blocking and salvage of pollutants by driving the operation mechanism to transfer and clean the pollutants intercepted in the river.

[0007] To solve the above technical problems, the technical scheme adopted by the present application is: a gravity energy storage type large river channel sewage cleaning device, comprising a floating mechanism, an energy storage system is arranged on the upper side of the floating mechanism, at least one set of operating mechanism is arranged on the side of the floating mechanism relative to the water flow, the floating mechanism comprises a bearing air bag, the energy storage system comprises a compressible water storage tank, the top of the compressible water storage tank is provided with energy storage weights, the water inlet of the compressible water storage tank is connected with a water pump through a water supply pipeline, the water pump is used for supplying water to the compressible water storage tank, the energy storage system drives the operating mechanism to operate, the operating mechanism comprises two sets of lifting devices arranged on the bearing air bag, a lifting net rack is arranged between the two sets of lifting devices, one end of the lifting net rack close to the lifting device is hinged to the lower end of the lifting device, the other end of the lifting net rack away from the lifting device is hinged to a pull rod, the other end of the pull rod is hinged to the lifting end of the lifting device, and in the sewage blocking condition, the lifting net rack is below the water surface.

[0008] In the preferred scheme, the water supply pipeline is provided with a two-position two-way electromagnetic valve.

[0009] In the preferred scheme, the lifting device comprises a piston cylinder fixed on the bearing air bag, a piston moves up and down in the piston cylinder, the upper end of the piston is connected with a piston rod, the space below the piston in the piston cylinder is a rodless cavity, the space above the piston is a rod cavity, the piston rod is connected with a telescopic sleeve sleeved in the piston cylinder, the end of the lifting net rack close to the lifting device is hinged to the piston cylinder, and the upper end of the pull rod is hinged to the telescopic sleeve; the water outlet of the compressible water storage tank is connected with the rodless cavity of the piston cylinder through a pipeline, and the pipeline is provided with a lifting control valve.

[0010] In the preferred scheme, the operating mechanism further comprises a flushing device, the flushing device comprises a flushing frame and a flushing pipeline arranged on the flushing frame, the flushing pipeline is provided with a spray head, the flushing pipeline is connected with the water outlet of the compressible water storage tank, and the flushing pipeline is provided with a water spraying valve; when the lifting net rack is lifted to an inclined state, the spray head flushes the lifting net rack.

[0011] In the preferred scheme, the bearing air bag comprises a plurality of closely arranged unit air bags, each unit air bag is provided with a liquid level sensor on one side, the unit air bags are connected into a whole through ropes, a plurality of unit air bags are arranged in the water flow direction and the river width direction, the air inlet and the air outlet of the unit air bag are provided with electromagnetic valves, the electromagnetic valves are controlled by a controller, the liquid level sensor is electrically connected with the controller, the air inlet of the unit air bag is connected with a branch air pipe, the branch air pipe is connected with a gas supply pipe through a tapping valve, and the gas supply pipe is connected with a gas tank.

[0012] In the preferred scheme, limit sliding blocks are arranged at both ends of the bearing air bag, and slide grooves matched with the limit sliding blocks are arranged on both banks of the river.

[0013] In the preferred scheme, grooves are arranged on the unit air bag for storing sewage.

[0014] In the preferred scheme, the gas tank supplies gas through the air intake system, which includes an air intake pipe connected to the gas tank, the air intake pipe is connected to the gas supply cylinder, the air intake pipe is provided with a safety valve and a one-way valve, the gas supply cylinder is provided with a gas supply piston, the side wall of the gas supply cylinder is provided with an air inlet hole, the lower end of the gas supply piston is connected with the gas supply piston rod, the end of the gas supply piston rod is provided with an arc-shaped rod cap, the cam cooperates with the arc-shaped rod cap, the cam rotates to drive the gas supply piston rod to reciprocate up and down, the cam is installed on the cam shaft, and the cam shaft is driven to rotate through the driving mechanism.

[0015] In the preferred scheme, the driving mechanism includes a blade rotating shaft installed downstream of the floating mechanism, the blade rotating shaft is rotatably installed at both ends on the river channel, a plurality of impellers are arranged on the blade rotating shaft, a plurality of driving wheels are arranged on the blade rotating shaft, a water pump driven wheel is arranged on the rotating shaft of the water pump, a gas storage driven wheel is arranged on the cam shaft, and the driving wheel is connected with the water pump driven wheel or the gas storage driven wheel through a transmission belt.

[0016] The application also provides an operation method of the gravity energy storage type large river channel garbage cleaning device, which comprises the following steps: Step one, in the initial state, the lifting net frame is in a horizontal state and intercepts floating objects below the water surface; the energy storage system stores liquid into the compressible water storage tank through the water pump, and the energy storage weight is lifted upward, and the energy is stored in the form of gravitational potential energy; Step two, when the intercepted floating objects need to be salvaged, the energy storage system supplies pressure to the lifting device to drive the piston to move up and down; when the piston is driven upward, the piston rod drives the telescopic sleeve to move upward, so that the lifting net frame is turned upward to pour the intercepted floating objects into the floating mechanism for collection; after the collection is completed, the piston moves downward, the telescopic sleeve moves downward, the lifting net frame is turned downward to the horizontal state, and the floating object interception is continued; Step three, when the floating objects are poured into the bearing gas bag, the height of the unit gas bag is different due to the different bearing weights of the unit gas bag; according to the liquid level data obtained by the liquid level sensor on one side of the unit gas bag, the liquid level signal is transmitted to the controller; the controller collects the liquid level height of each unit gas bag in water in real time; when the controller collects the liquid level of a certain unit gas bag and the liquid level deviation of other unit gas bags is greater than a set value, the controller synchronously extracts the liquid levels of several unit gas bags on the left and right and front and back of the unit gas bag with the maximum deviation; the controller calculates the average value of the liquid level deviation; the unit gas bag with the liquid level deviation higher than the average value of the liquid level deviation of the unit gas bag with the maximum deviation is exhausted through the electromagnetic valve of the exhaust port; the unit gas bag with the liquid level deviation lower than the average value of the liquid level deviation is filled with air through the electromagnetic valve of the air inlet; until the liquid level deviation of the unit gas bag with the maximum deviation reaches the average value of the liquid level deviation, the electromagnetic valve is closed, the air inlet or exhaust is stopped, and a new balance point is reached.

[0017] The application provides a gravity energy storage type large river channel garbage cleaning device and method, which has the following beneficial effects. 1. Efficient energy storage and garbage cleaning cooperation: the hydraulic operating mechanism using gravity energy storage is combined with water flow kinetic energy, so that the garbage in the river channel is cleaned, the heavy object is lifted to store energy, the originally abandoned water energy is converted into available potential energy, energy is saved and high efficiency is achieved, and two goals are achieved at one time.

[0018] 2. Stable floating guarantee: the device floats on the water surface by means of the air bag, and the filling and discharge of compressed air in the air bag are accurately controlled by the liquid level sensor, so that the device is prevented from sinking due to too much garbage accumulation, and the stability is high, and the device can work for a long time.

[0019] 3. Modular combination advantage: the large cleaning device is formed by arranging a plurality of garbage cleaning execution systems in sequence, the modules have clear division of labor, each set corresponds to independent energy storage, operating mechanism and floating equipment, and is convenient for installation, maintenance and flexible expansion, and is suitable for different river channel scales. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below in combination with the drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the structure of the operating mechanism; Figure 3 It is a gas supply principle diagram of the air inlet system to the bearing air bag; Figure 4 It is a principle diagram of the energy storage system; Figure 5 It is a schematic diagram of the structure of the driving mechanism; Figure 6 It is a local schematic diagram of the connection of the unit air bag and the river channel; In the drawing: floating mechanism 100, bearing air bag 110, unit air bag 111, electromagnetic valve 112, controller 113, branch air pipe 114, tapping valve 115, gas supply pipe 116, limit slide 117, gas tank 120, air inlet system 130, air inlet pipe 131, gas supply cylinder 132, safety valve 133, one-way valve 134, gas supply piston 135, gas supply piston rod 136, arc-shaped rod cap 137, cam 138, cam shaft 139; Energy storage system 200, compressible water storage tank 210, energy storage heavy object 220, water supply pipeline 230, water pumping pump 240, two-position two-way electromagnetic valve 250; Operating mechanism 300, lifting device 310, piston cylinder 311, piston 312, piston rod 313, telescopic sleeve 314, lifting net rack 320, pull rod 330, lifting control valve 340, flushing device 350, flushing rack 351, flushing pipeline 352, spray head 353, water spraying valve 354; Driving mechanism 400 , blade shaft 410 , impeller 420 , driving wheel 430 , water pump driven wheel 440 , air storage driven wheel 450 , transmission belt 460 . DETAILED DESCRIPTION

[0021] Example 1: like Figures 1-3 As shown, a gravity energy storage type large river channel sewage cleaning device includes a floating mechanism 100, an energy storage system 200 is provided on the upper side of the floating mechanism 100, and at least one set of operating mechanisms 300 is provided on the side of the floating mechanism 100 facing the water flow. The floating mechanism 100 includes a load-bearing airbag 110, which is hung on both sides of the river channel by ropes or slidably installed on both sides of the river channel through a connection structure of a slider and a chute. The energy storage system 200 includes a compressible water storage tank 210, and an energy storage weight 220 is provided on the top of the compressible water storage tank 210. The water inlet of the compressible water storage tank 210 is connected to the water pump 240 through a water supply pipe 230. The water pump 240 is used to supply water or other liquids to the compressible water storage tank 210. The energy storage system 200 drives the operating mechanism 300 to operate. The operating mechanism 300 includes two sets of lifting devices 310 arranged on the carrying airbag 110. The lifting grid 320 is arranged between the two sets of lifting devices 310. The end of the lifting grid 320 close to the lifting device 310 is hinged to the lower end of the lifting device 310, and the end of the lifting grid 320 away from the lifting device 310 is hinged to the pull rod 330. The other end of the pull rod 330 is hinged to the lifting end of the lifting device 310. In the pollution blocking condition, the lifting grid 320 is below the water surface.

[0022] Preferably, a two-position, two-way solenoid valve 250 is provided on the water supply pipe 230 for effectively controlling the liquid supply of the compressible water storage tank 210 .

[0023] During use, the upper side of the load-bearing airbag 110 is provided with a recess for storing salvaged floating objects. Two energy storage systems 200 are installed in the recess, with compressible water tanks 210 positioned at either end. The compressible water tanks 210 and energy storage weights 220 are placed within the housing to protect the compressible water tanks 210. Each compressible water tank 210 has two water inlets and two water outlets, located on its left and right sides. Each inlet corresponds to a water pump 240, for a total of four water pumps 240 storing energy.

[0024] The energy storage system 200 operates as follows: A water pump 240 draws water from the river, injecting the pressurized water through a pipeline into a compressible water tank 210. As the compressible water tank 210 fills, the energy storage weight 220 is lifted as the tank expands, storing energy as gravitational potential energy. A two-position, two-way solenoid valve 250 is installed in the water supply pipe 230 of the compressible water tank 210. A liquid level sensor within the compressible water tank 210 controls the solenoid valve's switching position. When the liquid level in the compressible water tank 210 reaches the upper limit, the solenoid valve switches to stop filling the tank. When the water level reaches the lower limit, the solenoid valve switches to resume filling.

[0025] The water in the compressible water storage tank 210 may also be replaced by hydraulic oil.

[0026] The lifting device 310 includes a piston cylinder 311 fixed on the carrying airbag 110, and the piston 312 moves up and down in the piston cylinder 311. The upper end of the piston 312 is connected to the piston rod 313. The space below the piston 312 in the piston cylinder 311 is a rodless cavity, and the space above the piston 312 is a rod cavity. The piston rod 313 is connected to the telescopic sleeve 314 sleeved in the piston cylinder 311. The lifting frame 320 is hinged to the piston cylinder 311 at one end close to the lifting device 310, and the upper end of the pull rod 330 is hinged to the telescopic sleeve 314; the water outlet of the compressible water storage tank 210 is connected to the rodless cavity of the piston cylinder 311 through a pipeline, and a lifting control valve 340 is provided on the pipeline.

[0027] The working principle of the operating mechanism 300 is as follows: when it is necessary to salvage the intercepted floating objects, the energy storage system 200 supplies pressure to the lifting device 310, the rodless chamber at the lower end of the piston 312 is filled with water, and the rod chamber is drained. The piston rod 313 drives the telescopic sleeve 314 to move upward, causing the lifting frame 320 to flip upward, and the intercepted floating objects are poured into the floating mechanism 100 for collection. After the collection is completed, the piston 312 moves downward, and the telescopic sleeve 314 moves downward, causing the lifting frame 320 to flip downward to a horizontal state to continue intercepting the floating objects.

[0028] When the lifting grid 320 is restored, the rodless cavity is drained. The switch is switched according to the time schedule through the lifting control valve 340 to complete the lifting of the dirt. The lifting control valve 340 is a two-position four-way solenoid valve. It works in the right position when lifting and in the left position when falling.

[0029] Preferably, Figure 2As shown, the operating mechanism 300 further comprises a flushing device 350, which comprises a flushing rack 351 and a flushing pipeline 352 provided on the flushing rack 351, the flushing pipeline 352 is provided with a spray head 353, the flushing pipeline 352 is connected with the water outlet of the compressible water storage tank 210, the flushing pipeline 352 is provided with a water spray valve 354, when the lifting net rack 320 is lifted to the inclined state, the spray head 353 flushes the lifting net rack 320, the water spray direction of the spray head 353 is along the inclined direction of the lifting net rack 320, the cleaning water performs hydraulic impact on the intercepted objects on the lifting net rack 320, so that the intercepted objects slide from the lifting net rack 320 to the floating mechanism 100 for storage, and the flushing water leaks from the lifting net rack 320.

[0030] In specific use, a horizontal conveyor and a climbing conveyor can be arranged on the floating mechanism 100 to transfer the floating objects collected on the floating mechanism 100 to the shore, instead of manually transferring the floating objects collected on the floating mechanism 100.

[0031] Embodiment 2: Different from embodiment 1, as shown in Figure 4 and 6 As shown, the bearing air bag 110 comprises a plurality of closely arranged unit air bags 111, each unit air bag 111 is provided with a liquid level sensor on one side, the unit air bags 111 are connected as a whole through ropes, the unit air bags 111 are arranged in multiple in the water flow direction and the river width direction, the air inlet and the air outlet of the unit air bag 111 are provided with electromagnetic valves 112, the electromagnetic valves 112 are three-position four-way electromagnetic valves, the electromagnetic valves 112 are controlled by a controller 113, when not working, the electromagnetic valves work in the middle position, when the unit air bag 111 needs to intake air, the electromagnetic valves work in the right position, and when the unit air bag 111 needs to exhaust air, the electromagnetic valves work in the left position.

[0032] The liquid level sensor is electrically connected with the controller 113, the air inlet of the unit air bag 111 is connected with a branch air pipe 114, the branch air pipe 114 is connected with a gas supply pipe 116 through a tapping valve 115, and the gas supply pipe 116 is connected with a gas tank 120.

[0033] The control mechanism and logic are as follows: The bearing air bag 110 is arranged in sections vertically to the river direction, and arranged in sections along the river direction, so that after different weights of pollutants are accumulated at different positions, the floating device cannot maintain the water surface, and tilting may occur in front, back, left and right directions, multiple air bags are arranged in the horizontal direction and the vertical direction, each air bag is controlled independently, so as to ensure that the pollutant cleaning system is horizontally arranged in the river.

[0034] When the floating object is poured onto the bearing air bag 110, the height of the unit air bag 111 is different due to the different bearing weights of the unit air bag 111. After the liquid level data of the unit air bag 111 is detected by the liquid level sensor on one side of the unit air bag 111, the liquid level signal is transmitted to the controller 113. The controller 113 collects the liquid level height of each unit air bag 111 in the water in real time. When the controller 113 collects the liquid level of a certain unit air bag 111 and the liquid level deviation of other unit air bags 111 is greater than the set value, the controller 113 synchronously extracts the liquid level of several unit air bags 111 on the left and right and front and back of the unit air bag 111 with the maximum deviation. The controller 113 calculates the average value of the liquid level deviation, and the unit air bag 111 with the liquid level deviation higher than the average value of the liquid level deviation of the unit air bag 111 with the maximum deviation is exhausted through the electromagnetic valve 112 of the exhaust port. The unit air bag 111 with a liquid level deviation lower than the average value of the liquid level deviation is filled with air through the electromagnetic valve 112 of the air inlet until the liquid level deviation of the unit air bag 111 with the maximum deviation reaches the average value of the liquid level deviation. The electromagnetic valve 112 is closed, and the air inlet or exhaust is stopped to reach a new equilibrium point.

[0035] As shown in Figure 6 , the bearing air bag 110 is provided with a limiting sliding block 117 at both ends, and the riverbanks are provided with a sliding groove matched with the limiting sliding block 117. The limiting sliding block 117 is a T-shaped structure, which can move up and down without affecting the bearing air bag 110 while limiting its random movement with the water flow through the cooperation of the limiting sliding block 117 and the sliding groove.

[0036] In this embodiment, as shown in Figure 4 , the air tank 120 is supplied with air through the air inlet system 130, which includes an air inlet pipe 131 connected with the air tank 120, the air inlet pipe 131 being connected with a gas supply cylinder 132, the air inlet pipe 131 being provided with a safety valve 133 and a one-way valve 134, the gas supply cylinder 132 being provided with a gas supply piston 135, the gas supply cylinder 132 being provided with an air inlet hole in the side wall, the lower end of the gas supply piston 135 being connected with a gas supply piston rod 136, the end of the gas supply piston rod 136 being provided with an arc-shaped rod cap 137, a cam 138 being matched with the arc-shaped rod cap 137, the cam 138 rotating to drive the gas supply piston rod 136 to move up and down reciprocatingly, the cam 138 being installed on a cam shaft 139, the cam shaft 138 being driven to rotate through a driving mechanism 400.

[0037] The cam 138 is matched with the arc-shaped rod cap 137 connected with the gas supply piston rod 136, the cam 138 reciprocatingly pushing the arc-shaped rod cap 137, so that the gas supply piston rod 136 continuously compresses air in the gas supply cylinder 132. The lower end of the gas supply cylinder 132 is reserved with a mesh hole as an air inlet channel of the gas supply cylinder 132, the upper end of the gas supply cylinder 132 being connected with the air tank through a pipeline. After the gas supply piston 135 is pulled out, air enters the gas supply cylinder 132 from the mesh hole. When the gas supply piston 135 moves upward, air is compressed, and the compressed air is injected into the air tank 120 for storage.

[0038] Example 3: Different from Example 1 and Example 2, Figure 5 As shown, the drive mechanism 400 includes a blade shaft 410 mounted downstream of the floating mechanism 100. Both ends of the blade shaft 410 are rotatably mounted on the river channel. Several impellers 420 are mounted on the blade shaft 410. The impellers 420 have concave blades. Based on the principles of fluid mechanics, the back of the blades is streamlined to minimize operating resistance. The difference in front and rear blade speeds creates a pressure differential, increasing the blades' energy conversion efficiency and reducing resistance in the water flow. The blades are welded to the runner shaft, driving the shaft's rotation and transmitting rotational torque.

[0039] The blades of the impeller 420 face the direction of the water flow and bear the water thrust of the water flow. The impeller 420 converts the kinetic energy of the water flow into mechanical energy of the blade shaft 410.

[0040] Several driving wheels 430 are provided on the blade rotating shaft 410, a water pump driven wheel 440 is provided on the rotating shaft of the water pump 240, and an air storage driven wheel 450 is provided on the camshaft 139. The driving wheel 430 is connected to the water pump driven wheel 440 or the air storage driven wheel 450 through a transmission belt 460.

[0041] As water flows through, it impacts impeller 420, converting the water's kinetic energy into mechanical energy for shaft rotation. Multiple driving wheels 430 are arranged on blade shaft 410. These driving wheels 430 are connected to water pump driven wheels 440 via transmission belts 460, driving the water pump to pump water. These driving wheels 430 are also connected to gas storage driven wheels 450 via transmission belts 460, driving cam 138 to rotate and supply air to gas tank 120.

[0042] Example 4: A method for operating a gravity energy storage type large river channel sewage cleaning device comprises the following steps: Step 1: In the initial state, the lifting grid 320 is in a horizontal state, below the water surface, to intercept floating objects; the energy storage system 200 stores the liquid in the compressible water storage tank 210 through the water pump 240, lifts the energy storage weight 220 upward, and the energy is stored in the form of gravitational potential energy.

[0043] Step two, when the floating object needs to be salvaged, the energy storage system 200 supplies pressure to the lifting device 310 to drive the piston 312 to move up and down, when the piston 312 is driven upward, the telescopic sleeve 314 is moved upward through the piston rod 313, the lifting net rack 320 is turned upward, and the intercepted floating object is poured into the floating mechanism 100 for collection, after the collection is completed, the piston 312 moves downward, the telescopic sleeve 314 moves downward, the lifting net rack 320 is turned downward to the horizontal state, and the floating object interception continues.

[0044] Step three, after the floating object is poured into the bearing air bag 110, due to the different heights of the unit air bags 111 caused by different bearing weights, the liquid level data of the unit air bags 111 is detected by the liquid level sensor on one side of the unit air bag 111, and the liquid level signal is transmitted to the controller 113, the controller 113 collects the liquid level height of each unit air bag 111 in water in real time, when the controller 113 collects the liquid level of a unit air bag 111 and the liquid level deviation of other unit air bags 111 is greater than the set value, the controller 113 synchronously extracts the liquid level of several unit air bags 111 left and right and front and back of the unit air bag 111 with the maximum deviation, the controller 113 calculates the average value of the liquid level deviation, and the unit air bag 111 with the liquid level deviation higher than the average value of the liquid level deviation of the unit air bag 111 with the maximum deviation is exhausted through the electromagnetic valve 112 of the exhaust port, and the unit air bag 111 with the liquid level deviation lower than the average value of the liquid level deviation is exhausted through the electromagnetic valve 112 of the exhaust port, until the liquid level deviation of the unit air bag 111 with the maximum deviation reaches the average value of the liquid level deviation, the electromagnetic valve 112 is closed, the air intake or exhaust is stopped, and a new equilibrium point is reached.

[0045] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as limitations of the present application. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. The protection scope of the present application should be based on the technical solutions claimed in the claims, including the equivalent replacement solutions of the technical features claimed in the claims. That is, within this range, equivalent replacement improvements are also within the protection scope of the present application.

Claims

1. A gravity energy storage type large river sewage cleaning device, characterized in that: The invention comprises a floating mechanism (100), an energy storage system (200) is provided on the upper side of the floating mechanism (100), at least one set of operating mechanisms (300) is provided on the side of the floating mechanism (100) facing the water flow, the floating mechanism (100) comprises a carrying air bag (110), the energy storage system (200) comprises a compressible water storage tank (210), the top of the compressible water storage tank (210) is provided with an energy storage weight (220), the water inlet of the compressible water storage tank (210) is connected to a water pump (240) through a water supply pipe (230), and the water pump (240) is used to supply water to the compressible water storage tank (210). The energy system (200) drives the operating mechanism (300) to operate. The operating mechanism (300) includes two groups of lifting devices (310) arranged on the carrying airbag (110). The lifting grid (320) is arranged between the two groups of lifting devices (310). One end of the lifting grid (320) close to the lifting device (310) is hinged to the lower end of the lifting device (310), and one end of the lifting grid (320) away from the lifting device (310) is hinged to the pull rod (330). The other end of the pull rod (330) is hinged to the lifting end of the lifting device (310). In the pollution interception working condition, the lifting grid (320) is below the water surface.

2. A gravity energy storage type large river channel sewage cleaning device according to claim 1, characterized in that: A two-position, two-way solenoid valve (250) is provided on the water supply pipe (230).

3. A gravity energy storage type large river channel sewage cleaning device according to claim 1, characterized in that: The lifting device (310) includes a piston cylinder (311) fixed on the carrying airbag (110), a piston (312) moves up and down in the piston cylinder (311), the upper end of the piston (312) is connected to the piston rod (313), the space below the piston (312) in the piston cylinder (311) is a rodless cavity, and the space above the piston (312) is a rod cavity, the piston rod (313) is connected to a telescopic sleeve (314) sleeved in the piston cylinder (311), one end of the lifting grid (320) close to the lifting device (310) is hinged to the piston cylinder (311), and the upper end of the pull rod (330) is hinged to the telescopic sleeve (314); the water outlet of the compressible water storage tank (210) is connected to the rodless cavity of the piston cylinder (311) through a pipeline, and a lifting control valve (340) is provided on the pipeline.

4. A gravity energy storage type large river channel sewage cleaning device according to claim 1, characterized in that: The operating mechanism (300) further includes a flushing device (350), the flushing device (350) including a flushing frame (351) and a flushing pipe (352) disposed on the flushing frame (351), a spray head (353) disposed on the flushing pipe (352), the flushing pipe (352) being connected to the water outlet of the compressible water storage tank (210), and a water spray valve (354) disposed on the flushing pipe (352). When the lifting grid (320) is lifted to an inclined state, the spray head (353) flushes the lifting grid (320).

5. A gravity energy storage type large river channel sewage cleaning device according to claim 1, characterized in that: The load-bearing airbag (110) includes a plurality of closely arranged unit airbags (111), each of which is provided with a liquid level sensor on one side. The unit airbags (111) are connected to each other as a whole by ropes. A plurality of unit airbags (111) are provided in the direction of water flow and the direction of river width. The air inlet and the air outlet of the unit airbag (111) are provided with electromagnetic valves (112), which are controlled by a controller (113). The liquid level sensor is electrically connected to the controller (113). The air inlet of the unit airbag (111) is connected to a branch air pipe (114), which is connected to an air supply pipe (116) via a tapping valve (115), and the air supply pipe (116) is connected to a gas tank (120).

6. A gravity energy storage type large river sewage cleaning device according to claim 1, characterized in that: Limiting sliders (117) are provided at both ends of the bearing airbag (110), and sliding grooves cooperating with the limiting sliders (117) are provided on both sides of the river channel.

7. A gravity energy storage type large river channel sewage cleaning device according to claim 5, characterized in that: The unit airbag (111) is provided with a groove for storing dirt.

8. The gravity energy storage type large river channel sewage cleaning device according to claim 1, characterized in that: The gas tank (120) is supplied with gas through an air intake system (130). The air intake system (130) includes an air intake pipe (131) connected to the gas tank (120). The air intake pipe (131) is connected to an air supply cylinder (132). A safety valve (133) and a one-way valve (134) are provided on the air intake pipe (131). An air supply piston (135) is provided in the air supply cylinder (132). An air intake hole is provided on the side wall of the air supply cylinder (132). The lower end of the air supply piston (135) is connected to an air supply piston rod (136). An arc-shaped rod cap (137) is provided at the end of the air supply piston rod (136). A cam (138) cooperates with the arc-shaped rod cap (137). The rotation of the cam (138) drives the air supply piston rod (136) to reciprocate up and down. The cam (138) is mounted on a camshaft (139). The camshaft (138) is driven to rotate by a driving mechanism (400).

9. A gravity energy storage type large river channel sewage cleaning device according to claim 8, characterized in that: The driving mechanism (400) comprises a blade rotating shaft (410) installed downstream of the floating mechanism (100), with both ends of the blade rotating shaft (410) being rotatably installed on the river channel, a plurality of impellers (420) being provided on the blade rotating shaft (410), a plurality of driving wheels (430) being provided on the blade rotating shaft (410), a water pump driven wheel (440) being provided on the rotating shaft of the water pump (240), a gas storage driven wheel (450) being provided on the camshaft (139), and the driving wheel (430) being connected to the water pump driven wheel (440) or the gas storage driven wheel (450) via a transmission belt (460).

10. The method for operating a gravity energy storage type large river channel sewage cleaning device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: In the initial state, the lifting grid (320) is in a horizontal state, below the water surface, to intercept floating objects; In the energy storage system (200), liquid is stored in a compressible water storage tank (210) through a water pump (240), and the energy storage weight (220) is lifted upward, and energy is stored in the form of gravitational potential energy; Step 2: When it is necessary to salvage the intercepted floating objects, the energy storage system (200) supplies pressure to the lifting device (310), driving the piston (312) to move up and down. When the piston (312) is driven upward, the telescopic sleeve (314) is driven upward by the piston rod (313), causing the lifting grid (320) to flip upward, and pouring the intercepted floating objects into the floating mechanism (100) for collection. After the collection is completed, the piston (312) moves downward, and the telescopic sleeve (314) moves downward, causing the lifting grid (320) to flip downward to a horizontal state, and continuing to intercept the floating objects; Step 3: After the floating objects are poured onto the carrying airbag (110), the heights of the airbags (111) are different due to the different weights carried by the airbags (111). After the liquid level data is detected by the liquid level sensor on one side of the airbags (111), the liquid level signal is transmitted to the controller (113). The controller (113) collects the liquid level height of each airbag (111) in the water in real time. When the controller (113) collects the liquid level of a certain airbag (111) and the liquid level deviation of other airbags (111) is greater than the set value, the controller (113) synchronously extracts the maximum value. The controller (113) calculates the average value of the liquid level deviation of the several unit airbags (111) to the left and right and in front and behind the deviation unit airbag (111). The unit airbags (111) whose liquid level deviation from the maximum deviation unit airbag (111) is higher than the average value of the liquid level deviation are exhausted through the electromagnetic valve (112) at the exhaust port. The unit airbags (111) whose liquid level deviation is lower than the average value of the liquid level deviation are inhaled through the electromagnetic valve (112) at the air inlet until the liquid level deviation from the maximum deviation unit airbag (111) reaches the average value of the liquid level deviation. The electromagnetic valve (112) is closed to stop the intake or exhaust and reach a new equilibrium point.

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