Underpressure buried pipeline cleaning and dredging system

Abstract

The utility model relates to the technical field of water treatment, and discloses an under-pressure buried pipeline cleaning and dredging system which comprises a U-shaped buried pipeline buried in a foundation, a horizontal pipe section of the buried pipeline is provided with a drainage pipe water inlet, the drainage pipe water inlet is connected with a drainage pipeline, and the drainage pipeline is connected with a drainage pipe. The blow-off pipeline is sequentially provided with a blow-off pipe water inlet valve, a blow-off lifting pump, a blow-off pipe water outlet valve and a blow-off pipe water outlet, an emptying port is further formed between the blow-off lifting pump and the blow-off pipe water outlet valve, and an emptying port valve is arranged at the emptying port. The drainage pipe water inlet is arranged on the transverse pipe section of the buried pipeline and is connected with the drainage pipeline, the valve is arranged on the drainage pipeline, deposits in the buried pipeline can be discharged by opening the drainage pipeline, and water flow of the buried pipeline is improved, so that pipeline conveying time is shortened, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a pressurized underground pipeline cleaning and dredging system. Background Art

[0002] In the process of liquid transportation, there is a transportation method that uses "U"-shaped underground pipelines to connect adjacent tanks. When the front tank body transports liquids including but not limited to sewage from the rear tank body, the impurities in the liquid are easily deposited at the lowest point of the "U"-shaped underground pipeline, and some substances in the liquid will adhere to the inner wall of the pipeline to form dirt. These deposited dirt will cause the pipeline flux to decrease when the front tank body transports liquid from the rear tank body, thereby reducing the water flow rate of the front tank. If necessary, the "U"-shaped underground pipeline needs to be cleaned and unblocked. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a pressurized buried pipeline cleaning and dredging system, which is convenient for the drainage and cleaning and dredging of "U"-shaped ground pipelines.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is:

[0005] A pressurized underground pipeline cleaning and dredging system comprises an underground pipeline in a U shape buried in a foundation, a horizontal pipe section of the underground pipeline is provided with a sewage pipe water inlet, the sewage pipe water inlet is connected to a sewage pipe, a sewage pipe water inlet valve, a sewage lifting pump, a sewage pipe water outlet valve and a sewage pipe water outlet are sequentially provided on the sewage pipe, an emptying port is also provided between the sewage lifting pump and the sewage pipe water outlet valve, and an emptying port valve is provided at the emptying port.

[0006] Furthermore, the water inlet of the sewage pipe is arranged at the lowest position of the horizontal pipe section of the buried pipeline.

[0007] Furthermore, it also includes an inspection well arranged in the foundation, and the sewage pipe water inlet and the sewage pipe are arranged in the inspection well.

[0008] Furthermore, an inspection port is provided on the horizontal pipe section of the buried pipeline, the inspection port is located in the inspection well, and an inspection blind plate is provided at the inspection port.

[0009] Furthermore, the inspection port is located directly above the water inlet of the sewage pipe.

[0010] Furthermore, the sewage pipe water inlet, sewage pipe and inspection port are arranged in plurality, and the interval between adjacent sewage pipe water inlets is 50 to 100 meters.

[0011] Furthermore, the inspection well has anti-leakage measures.

[0012] Furthermore, the inspection well is a reinforced concrete structure, and the inspection well covers an area of ​​5m 2 ~15m 2 .

[0013] Furthermore, a sump is provided in the inspection well, and the sump is provided in a corner of the inspection well.

[0014] The beneficial effects of the utility model are:

[0015] The utility model arranges a sewage pipe water inlet on the horizontal pipe section of the buried pipeline to connect the sewage pipe, and a valve is arranged on the sewage pipe. The sediment in the buried pipeline can be discharged by opening the sewage pipe, thereby improving the water flow rate of the buried pipeline, thereby reducing the pipeline transportation time and increasing the operation efficiency.

[0016] The utility model also provides an inspection well, and an inspection port is provided on the horizontal pipe section of the buried pipeline in the inspection well, so that high-pressure cleaning equipment can be conveniently extended into the buried pipeline to remove the deposited sludge and dirt attached to the inner wall of the pipeline and discharge them from the sewage pipeline.

[0017] The system of the utility model can clean the sludge and dirt deposited in the underground pipeline, reduce the corrosion and damage of the underground pipeline, and increase the service life of the underground pipeline; thereby reducing the replacement frequency of the buried pipeline, improving the utilization rate of the pipeline, and saving industrial production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Figure markings: 1-buried pipeline, 2-inspection well, 3-collecting pit, 4-inspection blind plate, 5-sewage pipe, 6-sewage pipe inlet, 7-sewage pipe inlet valve, 8-sewage lifting pump, 9-sewage pipe outlet, 10-sewage pipe outlet valve, 11-drain port, 12-drain port valve. DETAILED DESCRIPTION

[0021] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians of the art without making creative work are within the scope of protection of the present application.

[0022] A pressurized underground pipeline cleaning and dredging system, such as Figure 1 As shown, it includes a "U"-shaped underground pipeline 1 buried in the foundation, a sewage pipe water inlet 6 is provided in the horizontal pipe section of the underground pipeline 1, and the sewage pipe water inlet 6 is connected to a sewage pipe 5, and the sewage pipe water inlet valve 7, a sewage lifting pump 8, a sewage pipe water outlet valve 10 and a sewage pipe water outlet 9 are sequentially provided on the sewage pipe 5, and an emptying port 11 is also provided between the sewage lifting pump 8 and the sewage pipe water outlet valve 10, and an emptying port valve 12 is provided at the emptying port 11. Preferably, the sewage pipe water inlet 6 is arranged at the lowest position of the horizontal pipe section of the underground pipeline 1.

[0023] Furthermore, it also includes a maintenance well 2 arranged in the foundation, and the sewage pipe inlet 6 and the sewage pipe 5 are arranged in the maintenance well 2. The maintenance well 2 has anti-leakage measures, the maintenance well is a reinforced concrete structure, and the maintenance well covers an area of ​​5m 2 ~15m 2 , preferably 10m 2 A sump 3 is provided in the inspection well 2, and the sump 3 has anti-leakage measures. The sump 3 is provided in any corner of the inspection well 2, and the sump 3 is 500mm to 1000mm long, preferably 800mm wide, 500mm to 1000mm, preferably 800mm high, and 500mm to 1000mm, preferably 800mm high.

[0024] The horizontal pipe section of the buried pipeline 1 is also provided with an inspection port, and an inspection blind plate 4 is provided at the inspection port; preferably, the inspection port of the buried pipeline is set above the lowest point of the buried pipeline, and the diameter of the inspection port is set according to the diameter of the buried pipeline 1, and the minimum shall not be less than 200mm. The inspection blind plate can be made of carbon steel or stainless steel, preferably stainless steel. Preferably, the inspection port is located directly above the water inlet 6 of the sewage pipe.

[0025] The sewage pipe 5 can be made of carbon steel or glass fiber reinforced plastic, preferably glass fiber reinforced plastic; the diameter of the sewage pipe 5 is set to 50mm-200mm according to the diameter of the buried pipeline 1, preferably 100mm. The sewage pipe 5 is provided with an emptying port 11, and the diameter of the sewage pipe emptying port 11 is 10mm-20mm, preferably 15mm. The emptying port 11 is provided with an emptying port valve 12, and the emptying port valve 12 is a stainless steel ball valve. The sewage pipe inlet valve 7 and the sewage pipe outlet valve 10 are preferably stainless steel butterfly valves.

[0026] In the case where the horizontal pipe section of the buried pipeline 1 is long, multiple sewage pipe water inlets 6, sewage pipes 5 and inspection wells 2 can be set to carry out pipeline dredging and maintenance, with an interval of 50 to 100 meters.

[0027] During the normal operation of the gravity system, the sewage pipe inlet valve 7, the sewage pipe outlet valve 10 and the emptying valve 12 are all in the closed state. When the pipeline flux decreases during operation or a blockage occurs in the pipeline, the underground pipeline 1 stops inflow and outflow, and the pressure relief and drainage treatment is carried out: open the cover plate of the underground pipeline inspection well 2 and use instruments to detect whether the oxygen content in the well meets the standard. After confirming that there is no toxic and harmful gas in the well, the maintenance personnel enter the inspection well; first open the sewage pipe inlet valve 7, and the sewage of the underground pipeline 1 enters the sewage pipe 5 from the sewage pipe inlet 6, and then open the emptying valve 12, and use the sewage self-pressure in the underground pipeline 1 to empty the sewage pipe 5, until the water outlet 11 does not carry air and then close the emptying valve 12; open the sewage pipe lifting pump 8, and slowly open the sewage pipe outlet valve 10 to discharge the sewage of the underground pipeline 1 from the sewage pipe outlet 9 to the rear end. After the pressure of the buried pipeline 1 is relieved, the inspection blind plate 4 at the inspection port of the buried pipeline is opened, and then a sewage cleaning vehicle is used to extend into the buried pipeline 1 through a 15MPa-20MPa high-pressure cleaning device to remove the sludge and dirt deposited on the inner wall of the buried pipeline 1. The deposited sludge and dirt are discharged from the sewage pipe 5 after treatment. The inspection port is directly opposite to the sewage pipe, which helps to discharge the large volume of residue brought out when the high-pressure cleaning equipment is withdrawn from the sewage pipe; after cleaning, the sewage pipe outlet valve 10, the sewage lifting pump 8, the sewage pipe inlet valve 7, and the inspection blind plate 4 are closed in turn, and then it is confirmed whether the sump 3 of the buried pipeline inspection well generates water during the maintenance process, and the accumulated water is discharged in time, and finally the buried pipeline inspection well cover is closed.

[0028] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A pressurized underground pipeline cleaning and dredging system, characterized by: The invention comprises a U-shaped underground pipeline (1) buried in the foundation, wherein a sewage pipe water inlet (6) is provided in a horizontal pipe section of the underground pipeline (1), the sewage pipe water inlet (6) is connected to a sewage pipe (5), the sewage pipe water inlet valve (7), a sewage lifting pump (8), a sewage pipe water outlet valve (10) and a sewage pipe water outlet (9) are provided in sequence on the sewage pipe (5), an emptying port (11) is provided between the sewage lifting pump (8) and the sewage pipe water outlet valve (10), and an emptying port valve (12) is provided at the emptying port (11).

2. The pressurized underground pipeline cleaning and dredging system according to claim 1 is characterized in that: The sewage pipe water inlet (6) is arranged at the lowest position of the horizontal pipe section of the buried pipeline (1).

3. The pressurized underground pipeline cleaning and dredging system according to claim 1 is characterized in that: It also includes a maintenance well (2) arranged in the foundation, and a sewage pipe water inlet (6) and a sewage pipe (5) are arranged in the maintenance well (2).

4. The pressurized underground pipeline cleaning and dredging system according to claim 3 is characterized in that: The horizontal pipe section of the buried pipeline (1) is also provided with an inspection port, which is located in the inspection well and is provided with an inspection blind plate (4).

5. The pressurized underground pipeline cleaning and dredging system according to claim 4 is characterized in that: The inspection port is located directly above the water inlet (6) of the sewage pipe.

6. The pressurized underground pipeline cleaning and dredging system according to claim 4 is characterized in that: The sewage pipe water inlet (6), sewage pipe (5) and inspection port are provided in plurality, and adjacent sewage pipe water inlets (6) are spaced 50 to 100 meters apart.

7. The pressurized underground pipeline cleaning and dredging system according to claim 3 is characterized in that: The inspection well (2) has anti-leakage measures.

8. The pressurized underground pipeline cleaning and dredging system according to claim 7 is characterized in that: The inspection well (2) is a reinforced concrete structure and covers an area of ​​5m 2 ~15m 2 .

9. The pressurized underground pipeline cleaning and dredging system according to claim 7 is characterized in that: A sump (3) is provided in the inspection well (2), and the sump (3) is provided in a corner of the inspection well (2).

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