A pipe wall cleaning assembly for a sewage treatment plant

Abstract

The utility model relates to sewage treatment technical field, specifically is a kind of sewage treatment equipment with pipe wall cleaning assembly, including pressure supply component and cleaning assembly, the pressure supply component is connected between cleaning assembly by pipeline, the cleaning assembly includes metal main pipeline, the metal main pipeline drainage end is connected with conical nozzle by swivel joint. Through the mechanism of pressure supply component and cleaning assembly, a set of pipe wall cleaning mechanism is provided for the pipeline of sewage treatment equipment, the flexible support position can be changed according to the shape of the inner wall of lumen, suitable for round pipe, square tube use, the hard material can be crossed by changing support position in advance, so that the rear of pipeline is cleaned and handled, simultaneously, personnel can judge the position section of hard material section in pipeline based on the pressure change of pressure supply component generated by hard material section, so that personnel further opens or dismounts maintenance to the section area of pipeline in later period.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and specifically to a pipe wall cleaning component for wastewater treatment equipment. Background Technology

[0002] Wastewater treatment equipment plays a vital role in modern industrial and municipal facilities. Its core function is to transport, treat, and discharge wastewater through pipeline systems. However, during long-term operation, impurities, dirt, and hard materials in the wastewater can easily adhere to the inner walls of the pipes, leading to a decrease in the flow capacity of the pipes or even blockage, which seriously affects the efficiency of wastewater treatment and the normal operation of the equipment.

[0003] Existing mechanical flushing devices typically lack flexibility and cannot automatically adjust their support positions according to changes in the shape of the pipe's inner wall, resulting in limited cleaning effectiveness. When faced with obstacles such as hard objects that are difficult to remove during the initial cleaning of the pipe or accidentally dropped metal parts, traditional cleaning devices often cannot effectively overcome these obstacles, thus affecting the overall cleaning progress. At the same time, they cannot help personnel determine the specific location of hard object segments in the pipe, causing inconvenience to subsequent maintenance work. Therefore, a pipe wall cleaning component for sewage treatment equipment is proposed. Utility Model Content

[0004] To address the problems in the prior art, this utility model provides a pipe wall cleaning component for sewage treatment equipment.

[0005] The technical solution adopted by this utility model to solve its technical problem is a pipe wall cleaning component for sewage treatment equipment, including a pressure supply component and a cleaning component, wherein the pressure supply component and the cleaning component are connected by a pipe. The cleaning assembly includes a metal main pipe, the drain end of which is connected to a conical nozzle via a rotary joint. The conical nozzle has side drainage holes for propulsion at equal intervals on the outer periphery of its conical surface. The end of the conical nozzle away from the rotary joint has a nozzle aligned with the axial direction of the metal main pipe. Inclined drainage holes are also formed at equal intervals on the outer periphery of the conical nozzle.

[0006] By adopting the above technical solution, a pipe wall cleaning mechanism is provided for the sewage treatment equipment pipeline through a structure composed of a pressure supply component and a cleaning component. The support position can be flexibly changed according to the shape of the inner wall of the pipe cavity. It is suitable for use with round pipes and square pipes. When facing hard objects that are difficult to wash and remove during the initial cleaning of the pipe, the support position can be changed to cross the hard object first, thereby cleaning the rear of the pipe. At the same time, personnel can determine the location of the hard object in the pipe based on the pressure change generated by the pressure supply component of the hard object section, so that personnel can further open or disassemble that section of the pipe for maintenance in the future.

[0007] Specifically, the two ends of the crossbar on the outer periphery of the main metal pipe are rotatably mounted with support wheels via a pivot, and the two ends of the crossbar near the main metal pipe are respectively connected to connecting rods via a pivot. A hydraulic push rod is provided in the middle of the connecting rod at the end of the crossbar away from the rotary joint. The cylinder of the hydraulic push rod is rotatably connected to the main metal pipe through a rotating shaft. An end plate is welded to the end of the output rod of the hydraulic push rod. The end plate is rotatably connected to the middle of the connecting rod at the end of the crossbar away from the rotary joint through a rotating shaft.

[0008] Specifically, a tension spring is sleeved on the output rod of the hydraulic push rod, and the two ends of the tension spring are respectively fixed to the end plate and the sleeve cylinder of the hydraulic push rod by bolts.

[0009] Specifically, a pressure equalizing ring is welded to the outer periphery of the end of the main metal pipe away from the rotary joint. The pressure equalizing ring is a metal ring with a hollow oil cavity inside. The outer periphery of the pressure equalizing ring is connected to the tail end of the cylinder of the hydraulic push rod in sequence through a hose.

[0010] By adopting the above technical solution, the hydraulic oil in the oil tank is pumped by the oil pump in the hydraulic station and discharged to the pressure equalization ring through the reversing valve. The pressure equalization ring then sends the oil pressure to the sleeve cylinder of the hydraulic push rod. The pressure equalization ring and the sleeve cylinder of each hydraulic push rod are in a pressurized state. After being pressurized in the sleeve cylinder of the hydraulic push rod, the piston rod in the hydraulic push rod is pushed out, so that the hydraulic push rod can push the connecting rod connected to it. The connecting rod pushes the crossbar, causing the metal main pipe on the outer periphery of the metal main pipe to unfold. Based on the setting of the support wheel, the inner wall of the metal sewage treatment equipment of the entire cleaning component is then provided with rolling support.

[0011] Specifically, the pressure supply assembly includes a hydraulic station and a water pump. The hydraulic station includes an oil tank, an oil pump, a directional valve, and a pressure controller. The oil pump, directional valve, and water pump are all installed on the top of the oil tank. The oil pump's inlet is connected to the oil tank, and the oil pump's outlet is connected to the directional valve's inlet via a pipeline. The directional valve's outlet is connected to a pressure equalizing ring via a pipeline. The pressure controller is connected to the pipeline at the directional valve's outlet via a flange, and the pressure controller's output is connected to the oil pump and the directional valve's input. The directional valve's return is connected to the oil tank. The water pump's drain end is connected to the inlet end of the main metal pipe via a pipe.

[0012] By adopting the above technical solution, the pressure controller detects the pressure between the directional valve and the equalizing ring. When the pressure reaches the set value, the pressure controller controls the directional valve and the oil pump to close successively, so that the equalizing ring and the cylinder of the hydraulic push rod maintain a stable pressure. When the pressure exceeds the set value, the pressure controller controls the directional valve to open and connect with the oil tank, so that the pressure in the equalizing ring pipeline can be relieved from the directional valve and discharged back into the oil tank until the pressure reaches the set value, at which point the directional valve closes again. When the pressure is less than the set value, the directional valve opens again to connect the oil pump and the equalizing ring until the pressure reaches the set value, at which point the directional valve and the oil pump close successively.

[0013] The beneficial effects of this utility model are as follows: The mechanism, composed of a pressure supply component and a cleaning component, provides a pipe wall cleaning mechanism for sewage treatment equipment pipelines. It can flexibly change the support position according to the shape of the pipe's inner wall, making it suitable for round and square pipes. When encountering hard objects that are difficult to rinse or remove during the initial cleaning, it can first overcome these hard objects by changing the support position, thus cleaning the remaining section of the pipe. Simultaneously, personnel can determine the location of the hard object segment in the pipe based on the pressure change generated by the pressure supply component, allowing for further opening or disassembly maintenance of that section later. Existing mechanical flushing devices typically lack flexibility and cannot automatically adjust the support position according to changes in the pipe's inner wall shape, resulting in limited cleaning effectiveness. When facing obstacles such as hard objects that are difficult to rinse or remove during the initial cleaning or accidentally dropped metal parts, traditional cleaning devices often cannot effectively overcome these obstacles, thus affecting the overall cleaning progress. Furthermore, they cannot assist personnel in determining the specific location of hard objects in the pipe, causing inconvenience for subsequent maintenance work. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the cleaning components of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the tension spring of this utility model; Figure 5 This is a front cross-sectional view of the equalizing ring of this utility model; In the diagram: Pressure supply assembly 1, oil tank 11, oil pump 12, reversing valve 13, pressure controller 14, cleaning assembly 2, metal main pipe 21, rotary joint 22, conical nozzle 23, metal buckle 231, side drain hole 24, nozzle 25, inclined drain hole 26, crossbar 27, connecting rod 28, support wheel 29, hydraulic push rod 210, end plate 211, tension spring 212, pressure equalizing ring 213, water pump 3. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figure 1-5 As shown, the pipe wall cleaning component for sewage treatment equipment of this utility model includes a pressure supply component 1 and a cleaning component 2, wherein the pressure supply component 1 and the cleaning component 2 are connected by a pipe. The cleaning component 2 includes a metal main pipe 21. The drain end of the metal main pipe 21 is connected to a conical nozzle 23 via a rotary joint 22. The conical nozzle 23 has side drainage holes 24 for propulsion at equal intervals on the outer periphery of its conical surface. The end of the conical nozzle 23 away from the rotary joint 22 has a nozzle 25 aligned with the axial direction of the metal main pipe 21. The outer periphery of the conical nozzle 23 has inclined drainage holes 26 at equal intervals. Metal retaining rings 231 are welded to both sides of the end face of the end of the conical nozzle 23 away from the rotary joint 22.

[0018] The present invention also includes that the two ends of the crossbar 27 provided on the outer periphery of the metal main pipe 21 are rotatably mounted with support wheels 29 via rotating shafts, and the two ends of the crossbar 27 near the metal main pipe 21 are respectively connected to connecting rods 28 via rotating shafts. A hydraulic push rod 210 is provided in the middle of the connecting rod 28 at the end of the crossbar 27 away from the rotary joint 22. The cylinder of the hydraulic push rod 210 is rotatably connected to the metal main pipe 21 via a rotating shaft. An end plate 211 is welded to the end of the output rod of the hydraulic push rod 210. The end plate 211 is rotatably connected to the middle of the connecting rod 28 at the end of the crossbar 27 away from the rotary joint 22 via a rotating shaft.

[0019] The present invention also includes a tension spring 212 sleeved on the output rod of the hydraulic push rod 210, and the two ends of the tension spring 212 are respectively fixed to the end plate 211 and the cylinder of the hydraulic push rod 210 by bolts.

[0020] The present invention also includes a pressure equalizing ring 213 welded to the outer periphery of the end of the metal main pipe 21 away from the rotary joint 22. The pressure equalizing ring 213 is a metal ring with a hollow oil cavity inside. The outer periphery of the pressure equalizing ring 213 is connected to the cylinder tail end of the hydraulic push rod 210 in sequence through a hose.

[0021] In use, the hydraulic pump 12 in the hydraulic station pumps the hydraulic oil in the oil tank 11 through the reversing valve 13 to the pressure equalizing ring 213. The pressure equalizing ring 213 then sends the oil pressure to the cylinder of the hydraulic push rod 210. The pressure equalizing ring 213 and the cylinder of each hydraulic push rod 210 are in a pressurized state. After being pressurized in the cylinder of the hydraulic push rod 210, the piston rod in the hydraulic push rod 210 is pushed out, so that the hydraulic push rod 210 can push the connecting rod 28 connected to it. The connecting rod 28 pushes the crossbar 27, so that the metal main pipe 21 on the outer periphery of the metal main pipe 21 unfolds. Based on the setting of the support wheel 29, the inner wall of the metal sewage treatment equipment of the entire cleaning component 2 is then provided with rolling support.

[0022] This utility model also includes, the pressure supply component 1 includes a hydraulic station and a water pump 3, the hydraulic station includes an oil tank 11, an oil pump 12, a reversing valve 13 and a pressure controller 14, the oil pump 12, the reversing valve 13 and the water pump 3 are all installed on the top of the oil tank 11, the oil inlet end of the oil pump 12 is connected to the oil tank 11, and the oil outlet end of the oil pump 12 is connected to the oil inlet end of the reversing valve 13 through a pipeline, the oil outlet end of the reversing valve 13 is connected to the equalizing ring 213 through a pipeline, the pressure controller 14 is connected to the pipeline of the oil outlet end of the reversing valve 13 through a flange, and the output end of the pressure controller 14 is connected to the input end of the oil pump 12 and the reversing valve 13, and the return end of the reversing valve 13 is connected to the oil tank 11; The drain end of the water pump 3 is connected to the inlet end of the main metal pipe 21 via a pipe.

[0023] During use, the pressure controller 14 detects the pressure between the directional valve 13 and the equalizing ring 213. If the pressure reaches the personnel's set value, the pressure controller 14 controls the directional valve 13 and the oil pump 12 to close successively, so that the equalizing ring 213 and the cylinder of the hydraulic push rod 210 maintain a stable pressure. When the pressure exceeds the personnel's set value, the pressure controller 14 controls the directional valve 13 to switch and open to connect with the oil tank 11, so that the pressure in the pipeline of the equalizing ring 213 can be relieved from the directional valve 13 and discharged back into the oil tank 11 until the pressure reaches the set value, after which the directional valve 13 closes again. When the pressure is less than the personnel's set value, the directional valve 13 switches and opens again to connect the oil pump 12 and the equalizing ring 213 until the pressure reaches the set value, after which the directional valve 13 and the oil pump 12 close successively.

[0024] During use, during cleaning, if the cleaning component 2 encounters a hard structural section that cannot be passed due to a metal part accidentally falling into the pipe, the support wheel 29 will be unable to move forward continuously. The pressure resistance will be transmitted to the piston rod in the crossbar 27 and the hydraulic push rod 210, causing the pressure in the equalizing ring 213 connection pipe to exceed the set value of the pressure controller 14. At this time, the pressure controller 14 controls the reversing valve 13 to open and connect to the oil tank 11, allowing the pressure in the equalizing ring 213 pipe to be released back into the oil tank 11 through the reversing valve 13. This reduces the hydraulic pressure in the hydraulic push rod 210, increasing the width of the unfolded crossbar 27. The reduction in diameter of the overall cleaning component 2 within the pipe facilitates its passage through the hard section, allowing it to flush and clean the initial section of the pipe. Simultaneously, the cleaning personnel can monitor the pressure fluctuations generated in the hard section of the pipe via the pressure controller 14. Based on the length of the pipe between the cleaning component 2 and the pressure supply component 1 entering the sewage pipe, they can determine the location of the hard blockage, making it easier for personnel to locate the blockage area. This allows for subsequent manual opening or removal of the pipe section for further maintenance. Furthermore, the flexible diameter reduction method controlled by hydraulics enables the cleaning component 2 to switch flexibly between connected thick and narrow pipes, improving the overall flexibility of the cleaning device.

[0025] In use, the entire device is moved to the area where the pipe wall needs cleaning, and the power supply components in the work area provide power to the electrical mechanism of this application. The water supply pipe in the work area is connected to the inlet of the water pump 3. During cleaning, the cleaning component 2 is inserted into the pipe of the sewage treatment equipment, and the pressure controller 14 is turned on. The pressure controller 14 detects the pressure between the reversing valve 13 and the pressure equalizing ring 213. If the pressure reaches the set value set by the personnel, the pressure controller 14 controls the reversing valve 13 and the oil pump 12 to close successively, so that the pressure equalizes. The pressure is kept constant between ring 213 and the cylinder of hydraulic push rod 210. When the pressure exceeds the set value, pressure controller 14 controls directional valve 13 to open and connect to oil tank 11, allowing the pressure in the equalizing ring 213 pipeline to be released back into oil tank 11 through directional valve 13 until the pressure reaches the set value. Then directional valve 13 closes again. When the pressure is less than the set value, directional valve 13 opens again to connect oil pump 12 and equalizing ring 213 until the pressure reaches the set value. Then directional valve 13 and oil pump 12 close successively. The water pump 3 is turned on, supplying water to the main metal pipe 21. Water is discharged from the side drain hole 24, the inclined drain hole 26, and the nozzle 25. The water discharged from the side drain hole 24 on the conical surface of the conical nozzle 23 exerts a thrust on the conical nozzle 23. Based on this thrust, the cleaning component 2 moves forward within the sewage treatment equipment's pipe. The inclined drain hole 26, due to its inclined structure, generates a rotational force on the conical nozzle 23, causing the inclined drain hole 26 to rotate and thus rotate and flush the inner wall of the sewage pipe. The nozzle 25... The water flow from the nozzle 25 is smaller than that from the side drain hole 24. It can spray and push the dirt in the forward direction of the cleaning component 2 and break up the clumps of dirt so that the dirt can be discharged with the water flow. When the dirt is severely clumped, the personnel can fasten the chain or rope of the required material to the metal buckle 231 to increase the shearing force of the conical nozzle 23 on the dirt on the inner wall of the pipe during rotation, so as to better clean the pipe wall. During this process, it should be noted that the hardness of the chain or rope material should not be higher than the hardness of the sewage pipe material of the sewage treatment equipment to avoid damaging the integrity of the sewage pipe.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe wall cleaning assembly for wastewater treatment equipment, characterized in that, It includes a pressure supply component (1) and a cleaning component (2), which are connected by a pipe; The cleaning component (2) includes a metal main pipe (21), the drain end of which is connected to a conical nozzle (23) via a rotary joint (22). The conical nozzle (23) has side drainage holes (24) for propulsion at equal intervals on the outer periphery of its conical surface. The end of the conical nozzle (23) away from the rotary joint (22) has a nozzle (25) aligned with the axial direction of the metal main pipe (21). The outer periphery of the conical nozzle (23) has inclined drainage holes (26) at equal intervals. Metal buckles (231) are welded to both sides of the end face of the end of the conical nozzle (23) away from the rotary joint (22).

2. The pipe wall cleaning assembly for sewage treatment equipment according to claim 1, characterized in that, The metal main pipe (21) has a crossbar (27) on its outer periphery, and support wheels (29) are rotatably installed at both ends of the crossbar (27) on the side close to the metal main pipe (21). The two ends of the crossbar (27) are respectively connected to connecting rods (28) through the rotating shaft. A hydraulic push rod (210) is provided in the middle of the connecting rod (28) at the end of the crossbar (27) away from the rotary joint (22). The cylinder of the hydraulic push rod (210) is rotatably connected to the main metal pipe (21) through a rotating shaft. An end plate (211) is welded to the end of the output rod of the hydraulic push rod (210). The end plate (211) is rotatably connected to the middle of the connecting rod (28) at the end of the crossbar (27) away from the rotary joint (22) through a rotating shaft.

3. The pipe wall cleaning assembly for sewage treatment equipment according to claim 2, characterized in that, A tension spring (212) is sleeved on the output rod of the hydraulic push rod (210). The two ends of the tension spring (212) are respectively fixed to the end plate (211) and the cylinder of the hydraulic push rod (210) by bolts.

4. A pipe wall cleaning assembly for wastewater treatment equipment according to claim 3, characterized in that, The metal main pipe (21) is welded to the outer periphery of the end away from the rotary joint (22) with a pressure equalizing ring (213). The pressure equalizing ring (213) is a metal ring with a hollow oil cavity inside. The outer periphery of the pressure equalizing ring (213) is connected to the cylinder tail end of the hydraulic push rod (210) in sequence through a hose.

5. A pipe wall cleaning assembly for wastewater treatment equipment according to claim 4, characterized in that, The pressure supply assembly (1) includes a hydraulic station and a water pump (3). The hydraulic station includes an oil tank (11), an oil pump (12), a reversing valve (13), and a pressure controller (14). The oil pump (12), the reversing valve (13), and the water pump (3) are all installed on the top of the oil tank (11). The oil inlet of the oil pump (12) is connected to the oil tank (11), and the oil outlet of the oil pump (12) is connected to the oil inlet of the reversing valve (13) through a pipeline. The oil outlet of the reversing valve (13) is connected to the equalizing ring (213) through a pipeline. The pressure controller (14) is connected to the pipeline between the oil pump (12) and the reversing valve (13) through a flange, and the output end of the pressure controller (14) is connected to the input end of the oil pump (12) and the reversing valve (13). The drain end of the water pump (3) is connected to the inlet end of the metal main pipe (21) via a pipe.

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