Automatic desilting method for drainage pipes based on high-pressure jetting

Abstract

The present invention discloses a hydraulic automatic desilting method for drainage pipes based on high-pressure jetting, wherein high-pressure water is introduced into the pipe wall of the drainage pipe and jetted from the pipe wall of the drainage pipe into the inner cavity of the drainage pipe. The improved municipal drainage pipe in the hydraulic desilting method of the present invention has the advantage of automatic desilting.

Description

Technical Field

[0001] The present invention belongs to the technical field of municipal drainage pipeline desilting, and more specifically, to a drainage pipeline hydraulic automatic desilting method based on high-pressure jetting. Background Art

[0002] Municipal drainage pipes refer to rainwater and sewage pipes under municipal roads, which are important infrastructure in cities. Since sewage contains silt and impurities, siltation will occur in the pipe wall after long-term use, especially in the downstream pipe wall. If it is not maintained in time, it will affect the drainage capacity of municipal drainage pipes.

[0003] Currently, dredging is mainly carried out through three methods in the market: manual work, mechanical equipment and robots. However, there are problems such as large workload, complex equipment structure that cannot be applied to all drainage pipelines, and high dredging costs. Summary of the invention

[0004] The purpose of the present invention is to provide a hydraulic automatic dredging method for drainage pipes based on high-pressure jetting to address the problems existing in the prior art. The improved municipal drainage pipeline in the hydraulic dredging method has the advantage of automatic dredging.

[0005] In order to achieve these purposes and other advantages according to the present invention, a method for automatic hydraulic dredging of drainage pipes based on high-pressure jetting is provided, in which a high-pressure water channel is formed in the pipe wall of the drainage pipe and is connected to the inner cavity of the drainage pipe, high-pressure water is introduced into the high-pressure water channel, and sprayed into the inner cavity of the drainage pipe from the high-pressure water channel.

[0006] Preferably, a high-pressure water pipe is pre-buried in the pipe wall of the drainage pipe along its length direction, and a water outlet channel is opened on the high-pressure water pipe and extends to the inner cavity of the drainage pipe.

[0007] Preferably, the water outlet channel is arranged to be inclined toward the water flow direction from the high-pressure water pipe to the drainage pipe.

[0008] Preferably, a plurality of groups of high-pressure water pipes are pre-buried in the pipe wall of the drainage pipe along its circumference.

[0009] Preferably, the inclination angle of the water outlet channel is 30° to 60°.

[0010] Preferably, the pressure of the high-pressure water is adjustable.

[0011] Preferably, multiple groups of high-pressure water pipes are located at the first end of the drainage pipe and are interconnected through an annular pipe, the annular pipe is connected to a first branch pipe, the first branch pipe extends perpendicular to the pipe wall of the drainage pipe, and the first branch pipe is connected to a high-pressure water pump and a water tank in turn.

[0012] Preferably, the device further comprises a drug delivery device:

[0013] The first medicine box is a cubic structure, the bottom of the first medicine box is formed by two first plates connected by hinges, the first partition divides the first medicine box into two independent spaces of equal volume on the left and right, the lower end of the first partition is fixed to the hinge, the end of the first plate away from the first partition is connected to a spring, the other end of the spring is connected to the top of the first medicine box, so that the first plate abuts against the lower end of the side wall of the first medicine box, and the top of the first medicine box is symmetrically provided with drug delivery ports on both sides of the partition;

[0014] A water tank, which is a square structure with an open top; hanging rings are arranged at the four corners of the top of the water tank and the four corners of the bottom of the first medicine box, and the hanging rings of the water tank and the hanging rings at the bottom of the first medicine box are connected by wire ropes in pairs; the bottom of the water tank is composed of a first cover body, one end of the first cover body is hinged to the side wall of the water tank, and an iron block is fixed to the other end; an electromagnet is arranged on the side of the water tank facing the iron block, and the opening and closing of the first cover body is controlled by the on and off of the electromagnet; a float type liquid level sensor is arranged in the water tank, and a filter screen is arranged at the bottom end of the water tank, and the aperture of the filter screen is smaller than that of the float type liquid level sensor;

[0015] A second branch pipe, one end of which is connected to the water tank, and the other end of which extends to above the water tank, the other end of which is connected to a rubber hose, and the other end of which extends into the water tank; a first water pump is provided on the second branch pipe;

[0016] A medicine pool, which is a cubic structure, is located below the first medicine box, the top surface of the medicine pool is open and has an area larger than the bottom area of ​​the first medicine box, the medicine pool is connected to the first branch pipe through a third branch pipe, and the third branch pipe is located between the high-pressure water pump and the water tank, and the third branch pipe is provided with a second water pump and a first solenoid valve;

[0017] A controller is respectively connected to the electromagnet, the float type liquid level sensor, the first water pump, the second water pump and the first solenoid valve; the controller is configured to start the first water pump at a set interval, the float type liquid level sensor transmits the current water level in the water tank to the controller, and when the controller detects that the current water level reaches the set water level, the controller controls the first water pump to turn off, and controls the electromagnet to cut off power for a preset time, and when the controller controls the electromagnet to be powered on again, the controller controls the second water pump and the first solenoid valve to open for a preset time.

[0018] The present invention includes at least the following beneficial effects: automatic dredging of the drainage pipe is achieved by improving the structure of the drainage pipe and combining it with high-pressure water flow. The water flows through the outlet channel (which is a small hole structure) to flush the silt deposited on the pipe wall and flush it downstream along the direction of the water flow, thereby achieving the effect of hydraulic dredging. Compared with traditional manual dredging methods, the dredging effect is better and water-saving.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of the drainage pipe along the water flow direction in the hydraulic automatic silt removal method;

[0021] Figure 2 It is the left view of the drainage pipe section in the hydraulic automatic desilting method;

[0022] Figure 3 is a schematic diagram of a drug delivery device;

[0023] Figure 4 This is a schematic diagram of the first medicine box and sink.

[0024] Description of Reference Numerals

[0025] 1 drainage pipe, 2 high-pressure water pipe, 3 inner cavity, 4 water outlet channel, 5 first medicine box, 6 first plate, 7 hinge, 8 spring, 9 first partition, 10 water tank, 11 wire rope, 12 first cover, 13 iron block, 14 electromagnet, 15 float type liquid level sensor, 16 filter, 17 first branch pipe, 18 second branch pipe, 19 rubber hose, 20 first water pump, 21 medicine tank, 22 third branch pipe, 23 second water pump, 24 first solenoid valve, 25 high-pressure water pump. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] like Figures 1-2As shown, the present invention provides a method for automatic hydraulic dredging of drainage pipes based on high-pressure jetting, wherein a high-pressure water channel is formed in the pipe wall of the drainage pipe 1 and is connected to the inner cavity 3 of the drainage pipe 1, high-pressure water is introduced into the high-pressure water channel, and is sprayed toward the inner cavity 3 of the drainage pipe 1 from the high-pressure water channel.

[0029] In the above embodiment, the drainage pipe 1 can be a double-layer pipe structure, or a high-pressure water pipe 2 can be pre-buried in the pipe wall of the drainage pipe 1 when the drainage pipe 1 is manufactured. The automatic silting of the drainage pipe 1 is achieved by improving the structure of the drainage pipe 1 and combining the high-pressure water flow. The water flow flushes the sediment deposited on the pipe wall through the water outlet channel 4 (a small hole structure) and flushes it downstream along the direction of the water flow, thereby achieving the effect of hydraulic silt flushing. Compared with the traditional manual silt clearing method, the silt flushing effect is good and water saving.

[0030] In a preferred embodiment of the drainage pipe hydraulic automatic dredging method based on high-pressure jetting of the present application, a high-pressure water pipe 2 is pre-buried in the pipe wall of the drainage pipe 1 along its length direction, and a water outlet channel 4 is opened on the high-pressure water pipe 2 and extends to the inner cavity 3 of the drainage pipe 1.

[0031] In a preferred embodiment of the drainage pipe hydraulic automatic dredging method based on high-pressure jetting of the present application, the outlet channel 4 is arranged to be inclined in the direction of water flow from the high-pressure water pipe 2 to the drainage pipe 1. Since the direction of high-pressure water flow is roughly consistent with the direction of sewage flow, the impact force on the sediment on the pipe wall can be increased.

[0032] In a preferred embodiment of the automatic hydraulic desilting method for drainage pipes based on high-pressure jetting of the present application, a plurality of groups of high-pressure water pipes 2 are pre-buried in the pipe wall of the drainage pipe 1 along its circumference to achieve all-round desilting of the drainage pipe 1.

[0033] In a preferred embodiment of the drainage pipe hydraulic automatic dredging method based on high-pressure jetting of the present application, the inclination angle of the water outlet channel is 30° to 60°, and the impact effect on the sludge is best within this angle range.

[0034] In a preferred embodiment of the automatic hydraulic desilting method for drainage pipes based on high-pressure jetting of the present application, the pressure of the high-pressure water is adjustable, and the water pressure is adjusted according to the degree of silt accumulation.

[0035] In a preferred embodiment of the drainage pipe hydraulic automatic dredging method based on high-pressure jetting of the present application, a plurality of groups of high-pressure water pipes 2 are located at the first end of the drainage pipe 1 and are interconnected through an annular pipe, and the annular pipe is connected to a first branch pipe 17, and the first branch pipe 17 extends perpendicularly to the pipe wall of the drainage pipe 1, and the first branch pipe 17 is connected to a high-pressure water pump and a water tank in sequence.

[0036] In the above technical solution, the water in the water tank is pumped into the first branch pipe 17 by the high-pressure water pump 25, and then divided into each high-pressure water pipe 2 in sequence.

[0037] In a preferred embodiment of the drainage pipeline hydraulic automatic desilting method based on high-pressure jetting of the present application, as Figures 3-4 As shown, it also includes a drug delivery device:

[0038] The first medicine box 5 is a cubic structure. The bottom of the first medicine box 5 is formed by two first plates 6 connected by hinges 7. The first partition 9 divides the first medicine box 5 into two independent spaces of equal volume on the left and right. The lower end of the first partition 9 is fixed on the hinge. The end of the first plate 6 away from the first partition 9 is connected with a spring 8. The other end of the spring 8 is connected to the top of the first medicine box 5, so that the first plate 6 is against the lower end of the side wall of the first medicine box 5. The top of the first medicine box 5 is symmetrically provided with drug delivery ports on both sides of the partition. The drug delivery ports can be manually administered or administered by a device for quantitative powder administration. The elastic force of the spring 8 of the first medicine box 5 is set so that when the first medicine box 5 is filled with dredging agent, the first plate 6 and the side wall of the first medicine box 5 are still in a closed state. When the water tank 10 is filled with at least 2 / 3 of the water, the elastic force of the spring 8 is less than the downward force of the first plate 6.

[0039] The water tank 10 is a cubic structure with an open top; the four corners of the top of the water tank 10 and the four corners of the bottom of the first medicine box 5 are all provided with lifting rings, and the lifting rings of the water tank 10 and the lifting rings at the bottom of the first medicine box 5 are connected by wire ropes 11 in pairs, and the bottom of the water tank 10 is composed of a first cover 12, one end of the first cover 12 can be hinged to the side wall of the water tank 10 through a spring hinge, and an iron block 13 is fixed to the other end of the first cover 12, and an electromagnet 14 is provided on the side of the water tank 10 facing the iron block 13, and the opening and closing of the first cover 12 is controlled by the on and off of the electromagnet 14, and the suction force of the electromagnet 14 is at least greater than the gravity when the water tank 10 is filled with water; a float type liquid level sensor 15 is provided in the water tank 10, and a filter screen 16 is provided at the bottom end of the water tank 10, and the aperture of the filter screen 16 is smaller than that of the float type liquid level sensor 15;

[0040] A second branch pipe 18, one end of which is connected to the water tank, and the other end of which extends to the top of the water tank 10. The other end of the second branch pipe 18 is connected to a rubber hose 19, and the other end of the rubber hose 19 extends into the water tank 10. A first water pump 20 is provided on the second branch pipe 18;

[0041] The medicine pool 21 is a cube structure, and the medicine pool 21 is located below the first medicine box 5. The top surface of the medicine pool 21 is open and has an area larger than the bottom area of ​​the first medicine box 5. The medicine pool 21 is connected to the first branch pipe 17 through a third branch pipe 22, and the third branch pipe 22 is located between the high-pressure water pump and the water tank. The third branch pipe 22 is provided with a second water pump 23 and a first solenoid valve 24;

[0042] A controller is respectively connected to the electromagnet 14, the float type liquid level sensor 15, the first water pump 20, the second water pump 23 and the first solenoid valve 24; the controller is configured to start the first water pump 20 at a set interval, the float type liquid level sensor 15 transmits the current water level in the water tank 10 to the controller, and when the controller detects that the current water level reaches the set water level, the controller controls the first water pump 20 to turn off, and controls the electromagnet 14 to cut off power for a preset time, and when the controller controls the electromagnet 14 to be powered on again, the controller controls the second water pump 23 and the first solenoid valve 24 to open for a preset time.

[0043] In the above technical scheme, in order to prevent the high-pressure water pipe 2 and the water outlet channel 4 from being used for a long time and sludge from being attached to the pipe wall, thereby affecting the effect of high-pressure water cleaning the drain pipe, a drug delivery device is also provided; wherein, the drug delivery device, the high-pressure water pump and the water tank are all arranged above the ground. An equal amount of silt remover is regularly fed into the left and right spaces of the first medicine box 5. The controller turns on the first water pump 20 at a set time interval t1 (t1 may be half a month, a month or other time intervals, which plays the role of regularly cleaning the high-pressure water pipe 2), and pumps the water in the water tank into the water tank 10. The water in the water tank 10 gradually increases, and the downward pulling force on the first plate body 6 is greater than the pulling force of the spring 8. The first plate body 6 rotates away from the side wall of the first medicine box 5 through the hinge, forming an inclined slope, and the silt remover is poured into the medicine pool 21 below. When the controller detects that the water level in the water tank 10 reaches the set water level through the float liquid level sensor 15, the controller The first water pump 20 is controlled to be turned off, and the electromagnet 14 is controlled to be powered off for a period of time (which can be 5 to 15 seconds, but not limited to the above time). After the electromagnet 14 is powered off, the first cover 12 of the water tank 10 bears the gravity of the water in the water tank 10. Under the action of the gravity of the water, the first cover 12 opens, and the water in the water tank 10 enters the medicine pool 21 to mix with the dredging agent. The electromagnet 14 is powered on again, and the first cover 12 is tightly closed. At the same time, the controller controls the second water pump 23 and the first solenoid valve 24 to open for a preset time period, and pumps the medicine in the medicine pool 21 into the first branch pipe 17. The medicine is mixed more fully through the high-pressure water pump, and then enters the high-pressure water pipe 2 for dredging.

[0044] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A method for automatic hydraulic desilting of drainage pipes based on high-pressure jetting, characterized in that: A high-pressure water channel is formed in the wall of the drainage pipe and communicated with the inner cavity of the drainage pipe, high-pressure water is introduced into the high-pressure water channel, and sprayed into the inner cavity of the drainage pipe from the high-pressure water channel; A high-pressure water pipe is pre-buried in the wall of the drainage pipe along its length, and a water outlet channel is opened on the high-pressure water pipe and extends to the inner cavity of the drainage pipe; The water outlet channel is arranged to be inclined in the direction of water flow from the high-pressure water pipe to the drainage pipe; A plurality of groups of high-pressure water pipes are pre-buried in the pipe wall of the drainage pipe along its circumference; A plurality of groups of high-pressure water pipes are located at the first end of the drainage pipe and are interconnected through an annular pipe, the annular pipe is connected to a first branch pipe, the first branch pipe extends perpendicularly to the pipe wall of the drainage pipe, and the first branch pipe is connected to a high-pressure water pump and a water tank in sequence; Also includes drug delivery devices: The first medicine box is a cubic structure, the bottom of the first medicine box is formed by two first plates connected by hinges, the first partition divides the first medicine box into two independent spaces of equal volume on the left and right, the lower end of the first partition is fixed to the hinge, the end of the first plate away from the first partition is connected to a spring, the other end of the spring is connected to the top of the first medicine box, so that the first plate abuts against the lower end of the side wall of the first medicine box, and the top of the first medicine box is symmetrically provided with drug delivery ports on both sides of the partition; A water tank, which is a square structure with an open top; hanging rings are arranged at the four corners of the top of the water tank and the four corners of the bottom of the first medicine box, and the hanging rings of the water tank and the hanging rings at the bottom of the first medicine box are connected by wire ropes in pairs; the bottom of the water tank is composed of a first cover body, one end of the first cover body is hinged to the side wall of the water tank, and an iron block is fixed to the other end; an electromagnet is arranged on the side of the water tank facing the iron block, and the opening and closing of the first cover body is controlled by the on and off of the electromagnet; a float type liquid level sensor is arranged in the water tank, and a filter screen is arranged at the bottom end of the water tank, and the aperture of the filter screen is smaller than that of the float type liquid level sensor; A second branch pipe, one end of which is connected to the water tank, and the other end of which extends to above the water tank, the other end of which is connected to a rubber hose, and the other end of which extends into the water tank; a first water pump is provided on the second branch pipe; A medicine pool, which is a cubic structure, is located below the first medicine box, the top surface of the medicine pool is open and has an area larger than the bottom area of ​​the first medicine box, the medicine pool is connected to the first branch pipe through a third branch pipe, and the third branch pipe is located between the high-pressure water pump and the water tank, and the third branch pipe is provided with a second water pump and a first solenoid valve; A controller is respectively connected to the electromagnet, the float type liquid level sensor, the first water pump, the second water pump and the first solenoid valve; the controller is configured to start the first water pump at a set interval, the float type liquid level sensor transmits the current water level in the water tank to the controller, and when the controller detects that the current water level reaches the set water level, the controller controls the first water pump to turn off, and controls the electromagnet to cut off power for a preset time, and when the controller controls the electromagnet to be powered on again, the controller controls the second water pump and the first solenoid valve to open for a preset time.

2. The method for automatic hydraulic desilting of drainage pipes based on high-pressure jetting according to claim 1, characterized in that: The inclination angle of the water outlet channel is 30°~60°.

3. The method for automatic hydraulic desilting of drainage pipes based on high-pressure jetting according to claim 1, characterized in that: The pressure of the high-pressure water is adjustable.

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