Maintenance device and method for pipeline drainage blockage early warning and auxiliary maintenance

Abstract

The application discloses a kind of for pipeline drainage blockage early warning and auxiliary overhaul overhaul device and method, overhaul device includes the overhaul main body with one opening end in shell structure, the opening end of shell is detachably connected with the access, gas bag with a certain amount of gas is arranged in shell, gas port is configured on gas bag and extends to the outside of shell;And pressure display device for showing the pressure change in gas bag.Install the overhaul device at access, carry out the gas charging and discharging treatment to gas bag through gas port, the volume change of gas bag can be used to open and close water flow, meet the pipeline water flow control demand.At the same time, the pressure change of gas bag is visualized using pressure display device, can early warning to pipeline blockage, and by inflating gas bag, water in pipeline can be extruded using air pressure, and the blockage caused by non-solid substance is dredged, or the pipe section that may be blocked is pre-dredged, to reduce the probability of pipe section blockage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline early warning and maintenance, and particularly relates to a maintenance device and method for pipeline drainage blockage early warning and auxiliary maintenance. BACKGROUND

[0002] When the drainage pipeline is blocked and the drainage system cannot be normally used, it often takes a lot of time to find the blockage point. At present, the indoor dredging tools commonly used are spring dredging devices, but it is difficult to truly find the blockage point due to the large number of branch pipes, or the sewer pipeline is blocked by cement and other solidified objects due to the use of toilets by workers before the water is connected, and the like, so that the public system cannot operate, causing serious losses. When the drainage pipeline is blocked and dredging cannot solve the problem, part of the pipeline needs to be replaced, and opening the cleaning opening for maintenance will cause sewage to overflow, thereby causing pollution and damage to the suspended ceiling and water damage to the electrical facilities. In addition, after the installation of the drainage pipeline is completed, a full water test needs to be carried out. In this process, the test steps are relatively complicated, and when there is a large amount of drainage in the pipeline, due to the water hammer effect, the pipeline is prone to loosening and rupture.

[0003] In the prior art, a patent with the publication number CN 208152171 U discloses a trap blockage early warning device, which comprises a trap body and a trap blockage early warning assembly. The trap blockage early warning assembly comprises a first turbine flow rate sensor, a second turbine flow rate sensor and a display. The turbine sensor is used to determine whether the trap is blocked according to the rotation speed and the water seal height. However, the turbine flow rate sensor may be wound by hair and other debris during use, so that the turbine cannot rotate, and thus the early warning cannot be carried out. At the same time, the installation of the turbine flow rate sensor will form an obstacle to a certain extent, and aggravate the blockage of the trap.

[0004] Therefore, it is necessary to design a maintenance device and method for pipeline drainage blockage early warning and auxiliary maintenance to solve the above problems. SUMMARY

[0005] The present application aims to provide a maintenance device and method for pipeline drainage blockage early warning and auxiliary maintenance, which can effectively solve the problems of solid blockage such as cement caused by decoration construction, difficulty in determining the blockage position, paralysis of hospitals, schools, shopping malls, factories, bridge surfaces and the like caused by reverse water due to pipeline blockage, and pollution and damage to the suspended ceiling and electrical equipment caused by pipeline water leakage during the maintenance process, and can avoid the rupture of the pipeline due to the water hammer effect.

[0006] To achieve the above-mentioned application purposes, the present application provides a maintenance device for pipeline drainage blockage early warning and auxiliary maintenance, which comprises

[0007] The maintenance body has a casing with an open end, and the open end of the maintenance body is detachably connected to the manhole on the pipeline;

[0008] The air bag is arranged in the casing, and the air bag is filled with a certain amount of gas, and the air bag is provided with an air port extending out of the casing; and

[0009] The pressure display device is used to display the pressure change in the air bag;

[0010] The air bag is inflated from the open end into the pipeline by inflating or deflating the air bag through the air port, so as to cut off the pipeline.

[0011] As a further improvement of the present application, the maintenance body is a short pipe structure, and one end of the short pipe is open and the other end is closed.

[0012] As a further improvement of the present application, the air bag is made of elastic material.

[0013] As a further improvement of the present application, the air bag is provided with a protective plate at one end away from the closed end of the short pipe, which is used to avoid damage of the air bag when it is in contact with the pipe wall in the inflated state.

[0014] As a further improvement of the present application, the closed end of the short pipe is detachably mounted with a pipe cover.

[0015] As a further improvement of the present application, a flexible pad is arranged on the pipe cover to improve the sealing performance of the pipe cover and the short pipe.

[0016] A method for pipeline drainage blockage early warning and auxiliary maintenance is provided, which is processed by using the maintenance device for pipeline drainage blockage early warning and auxiliary maintenance, and includes the following steps:

[0017] S1, the maintenance device is respectively installed at a plurality of manholes of the pipeline, a certain amount of gas is filled in the air bag, and then the air port is closed, the air bag is inflated to a certain volume in the casing to form a monitoring state, and the air bag in the monitoring state does not affect the normal flow of water in the pipeline;

[0018] S2, blockage early warning: the pressure change of the air bag is monitored by the pressure display device to determine the blockage of the pipeline;

[0019] S3, pipeline maintenance and blockage prevention: after determining the blockage and congestion point position of the pipeline or determining the subsequent easy blockage and corresponding obstacle points of the pipeline according to step S2, the air inflation amount of the air bag in the maintenance device near the congestion point or the obstacle point is adjusted, and the water in the pipeline is squeezed by the air pressure to achieve the effect of dredging or pre-dredging;

[0020] S4, if the pipeline is blocked, the pipeline dredging according to step S3 cannot be completed, then the air bag in the maintenance device upstream of the congestion point is continuously inflated, the pipeline corresponding to the congestion point is cut off, and the blocked pipeline is disassembled, repaired or replaced.

[0021] As a further improvement of the application, in step S2, the pipeline blockage condition judgment is specifically: if the pressure display device shows that the pressure of the air bag increases significantly, it indicates that the pipeline downstream of the corresponding maintenance opening is blocked; if the pressure display device shows that the pressure of the air bag increases in a small range, it indicates that the pipeline downstream of the corresponding maintenance opening is prone to blockage.

[0022] As a further improvement of the application, the method for determining the position of the congestion point is as follows: along the direction of water flow, when at least two maintenance openings are provided on the pipeline, the pressure of the air bag of one of the maintenance devices increases significantly, and the pressure of the air bag of the adjacent maintenance device downstream of the one maintenance device does not change, the congestion point is located on the pipeline section between the two maintenance devices; when the pressure of one maintenance device increases significantly, and the pressure of the maintenance devices on each branch pipe connected to the riser corresponding to the maintenance device does not change, the congestion point is located at the lower end of the riser; when the pressure of all maintenance devices increases significantly, the congestion point is located downstream of the pipeline section corresponding to the maintenance device with the highest pressure.

[0023] As a further improvement of the application, in step S3, the specific operation of pipeline maintenance and blockage prevention is as follows: the adjacent air bag of the air bag upstream of the pipeline section corresponding to the congestion point or the obstacle point is in an inflated state, the air bag upstream of the pipeline section corresponding to the congestion point or the obstacle point is inflated, and the water is extruded by using air pressure to achieve dredging or pre-dredging effect.

[0024] The beneficial effects of the application are as follows:

[0025] 1. The application can provide early warning for pipeline blockage by installing an air bag filled with a certain amount of gas in the maintenance device and visualizing the pressure change of the air bag through the pressure display device, and has high practicability. Meanwhile, the water in the pipeline can be extruded by using air pressure by inflating the air bag in the maintenance device, so that the blockage caused by non-solid substances can be dredged, or the pipeline section that may be blocked can be pre-dredged, thereby reducing the probability of pipeline blockage.

[0026] 2. The air bag can be inflated and deflated through the air port, the water flow can be opened and closed by using the volume change of the air bag to meet the water flow control requirement of the pipeline, and when the pipeline is cut off by using the air bag in an inflated state, the water flow of the downstream maintenance opening will not pour out when the upstream is in a closed state due to the action of air pressure, and only the water flow of the upstream part of the pipeline needs to be led out for replacement, so that loss caused by sewage overflow can be avoided, and the maintenance and processing of the pipeline are facilitated.

[0027] 3. The compressibility of the air bag in the maintenance device can buffer the large amount of water in the pipeline for drainage or for unblocking, avoiding the water hammer effect caused by the incompressibility of water to damage the pipeline, effectively protecting the pipeline from loosening and breaking.

[0028] 4. The maintenance device for pipeline drainage and blockage pre-warning and auxiliary maintenance has small volume and strong functionality, can realize various detection purposes in combination with computer software, and is simple to operate, can quickly determine the blockage position and perform preliminary maintenance, effectively solves the problems of solid blockage such as cement caused by decoration construction, difficulty in determining the blockage position due to the failure of full water and water ball test, paralysis of hospitals, schools, shopping malls, factories, bridge surfaces and the like due to pipeline blockage and reverse water, and damage of suspended ceilings and electrical equipment caused by pipeline leakage during maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic view of the maintenance device for pipeline drainage and blockage pre-warning and auxiliary maintenance.

[0030] Figure 2 It is a state schematic view of the maintenance device for pipeline drainage and blockage pre-warning and auxiliary maintenance.

[0031] Figure 3 It is a maintenance schematic view of the maintenance device for pipeline drainage and blockage pre-warning and auxiliary maintenance.

[0032] REFERENCE NUMERALS

[0033] 1, remote pressure gauge; 2, air port; 3, pipe cover; 4, rubber pad; 5, air bag; 6, air; 7, protection plate; 8, short pipe; 9, maintenance port; 10, first maintenance device; 11, second maintenance device; 12, third maintenance device; 13, fourth maintenance device; 14, fifth maintenance device. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0035] Here, it also needs to be explained that, in order to avoid the unnecessary details from blurring the present application, only the structures and / or processing steps closely related to the scheme of the present application are shown in the drawings, and other details not closely related to the present application are omitted.

[0036] It is also important to note that the terms "including" or "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] As shown in the accompanying drawings, Figure 1 The present application provides a maintenance device for pipeline drainage blockage early warning and auxiliary maintenance, which comprises

[0038] A maintenance main body having a housing with an open end, the open end of the maintenance main body being detachably connected to a maintenance opening 9 on the pipeline;

[0039] An air bag 5 arranged in the housing, the air bag 5 being filled with a certain amount of air 6 inside, and the air bag 5 being provided with an air port 2 extending outside the housing; and

[0040] A pressure display device for displaying the pressure change in the air bag 5;

[0041] The air bag 5 is inflated and deflated through the air port 2, so that the air bag 5 can be inflated from the open end into the pipeline to cut off the pipeline.

[0042] Specifically, the maintenance main body is a short pipe 8 structure, one end of the short pipe 8 being open and the other end being closed. In this embodiment, the closed end of the short pipe 8 is detachably provided with a pipe cover 3, and the pipe cover 3 is provided with a flexible pad for improving the sealing performance of the pipe cover 3 and the short pipe 8. In this embodiment, the flexible pad is a rubber pad 4.

[0043] Specifically, the air bag 5 is made of elastic material and can deform accordingly with the change of pressure, including silica gel, rubber, etc. The air bag 5 is provided with a protective plate 7 at the end away from the pipe cover 3, which is used to avoid damage when the air bag 5 is in contact with the pipe wall in the inflated state, and to avoid damage to the air bag when it is in the monitoring state or the deflated state, and the pipeline is dredged by using a traditional spring.

[0044] When the pipeline has no congestion point, the air bag 5 filled with a certain amount of gas is in a monitoring state Figure 2 c), and the air bag 5 does not need to be inflated or deflated, the maintenance device is in an open state, and the water in the pipeline can flow normally; when there is a congestion point or obstacle point in the pipeline, the air bag 5 is in a deflated state Figure 2 b) under the influence of water pressure, the pressure in the air bag 5 increases, and the pressure change is displayed on the pressure display device for pipeline blockage early warning; when it is necessary to cut off the water flow in the pipeline, the air bag 5 is in an inflated state Figure 2a) and closely attached to the inner wall of the pipeline, the device is in a closed state, the water flow in the pipeline is cut off, and the blocked pipeline can be disassembled, repaired or replaced. At the same time, when it is necessary to dredge the congested pipe section or the pipe section that may be congested, the gas inlet 2 can be filled with gas to gradually expand the air bag 5, and the water can be squeezed by using the gas pressure to achieve the effect of dredging or pre-dredging.

[0045] Specifically, the pressure display device includes a common pressure gauge and a remote pressure gauge 1, etc. The blocked pipe section can be quickly judged by pressure display to accurately dredge. In the embodiment, the pressure display device is a remote pressure gauge 1, which is connected with the gas inlet 2 and used for monitoring the congestion condition of the pipeline. In addition, the pressure change data can be imported into the drainage system diagram through computer software, and the blocked position can be displayed by using graphics to improve the pipeline monitoring effect.

[0046] A method for pipeline drainage blockage early warning and auxiliary maintenance is processed by using a maintenance device for pipeline drainage blockage early warning and auxiliary maintenance, including the following steps:

[0047] S1, install the maintenance device at the plurality of maintenance openings 9 of the pipeline respectively, and close the gas inlet after filling a certain amount of gas in the air bag 5. The air bag 5 expands in the short pipe 8 to form a monitoring state, and the air bag 5 in the monitoring state does not affect the normal flow of water in the pipeline, as shown in Figure 3 Each branch pipe right end is connected with a drainage device, and the water flow direction in the pipeline is from right to left and from top to bottom;

[0048] S2, blockage early warning: monitor the pressure change of the air bag 5 by the pressure display device to determine the pipeline blockage condition;

[0049] S3, pipeline maintenance and blockage prevention: after determining the pipeline blockage and congestion point position or determining the subsequent easy-to-form blockage and corresponding obstacle point of the pipeline according to step S2, adjust the air bag 5 inflation amount of the maintenance device near the congestion point or obstacle point, and squeeze the water in the pipeline by using the gas pressure to achieve the effect of dredging or pre-dredging.

[0050] S4, if the pipeline is blocked, the pipeline dredging cannot be completed according to step S3, then the air bag 5 in the maintenance device upstream of the congestion point is continuously inflated, the corresponding pipeline is cut off, and the blocked pipeline is disassembled, repaired or replaced.

[0051] Specifically, in step S2, if the pressure display device shows that the pressure of the detection device increases significantly, it indicates that there is a congestion point on the pipeline. The method for determining the position of the congestion point is as follows: (1) if the pressure of the fifth detection device 14 increases significantly and the pressure of the fourth detection device 13 does not change, it indicates that the congestion point is located on the pipe section between the fifth detection device 14 and the fourth detection device 13; (2) if the pressure of the third detection device 12 increases significantly and the pressures of the first detection device 10, the second detection device 11, the fourth detection device 13 and the fifth detection device 14 do not change, it indicates that the congestion point is located at the lower end of the vertical pipe where the third detection device 12 is located; (3) if the pressures of all the detection devices increase, it indicates that the congestion is serious, which causes the water level to rise and the water to return, a large amount of sewage accumulates in the pipeline, and the congestion point is located downstream of the pipe section corresponding to the detection device with the highest pressure. In the present embodiment, if the pressures of the first detection device 10 to the fifth detection device 14 increase, and the pressure of the first detection device 10 is the highest, it indicates that the congestion point is located downstream of the pipe section corresponding to the first detection device 10.

[0052] Specifically, in step S3, the specific operation of pipeline maintenance and congestion prevention is as follows: the adjacent air bags 5 upstream of the air bag 5 corresponding to the congestion point or the obstacle point are in an inflated state, the air bag 5 corresponding to the congestion point or the obstacle point upstream is inflated, and the water is squeezed by air pressure to achieve the effect of dredging or pre-dredging. In the present embodiment, if the congestion point is located on the pipe section between the fourth detection device 13 and the third detection device 12, the fifth detection device 14 is closed by inflation first, and then the fourth detection device 13 is inflated, so as to squeeze the water in the pipe section between the fourth detection device 13 and the third detection device 12 by air pressure to achieve the effect of dredging. If the air bag 5 is inflated to the maximum inflation volume and still cannot complete the dredging, it is determined that the congestion is caused by solid substances such as cement blocks, the fourth detection device 13 is closed, and the blocked pipe section is disassembled, repaired and replaced.

[0053] Specifically, if the pressure display device shows that the pressure of the air bag increases in a small range, it indicates that there is an obstacle point in the pipeline. In the present embodiment, the obstacle point is determined as follows: if the pressure of the fourth detection device 13 increases in a small range and the pressure of the third detection device 12 does not change, it indicates that there is an obstacle point in the pipe section between the fourth detection device 13 and the third detection device 12, and this part of the pipe section is likely to be easily blocked subsequently; the pre-dredging operation is as follows: the fifth detection device 14 is closed by inflation first, and then the fourth detection device 13 is inflated, so as to squeeze the water in the pipe section between the fourth detection device 13 and the third detection device 12 by air pressure to achieve the effect of pre-dredging, thereby reducing the probability of pipe section blockage.

[0054] Specifically, when the installed pipeline needs to be subjected to a full water test, the state of the corresponding detection device can be adjusted according to the test requirements to cut off the water flow. In the present embodiment, by making the first detection device 10 and the third detection device 12 in an inflated state, the second detection device 11 and the fourth detection device 13 can be subjected to a full water test, respectively.

[0055] The above examples are only used to illustrate the technical solutions of the present application but not to limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the present application.

Claims

1. A method for early warning and auxiliary maintenance of pipeline drainage blockage, the method being based on a maintenance device, characterized in that: The maintenance device includes The maintenance body has a housing with an open end, which is detachably connected to the maintenance port on the pipeline. An airbag, housed within the shell, is filled with a certain amount of gas and has air vents extending outside the shell; and Pressure display device, used to display pressure changes inside the airbag; Inflate and deflate the airbag through the air inlet, allowing the airbag to expand from the open end into the tube and cut off the tube. The method includes the following steps: S1. Install the inspection device at several inspection ports of the pipeline, and after filling the air bladder with a certain amount of gas, close the air port. The air bladder expands to a certain volume in the shell to form a monitoring state. The air bladder in the monitoring state does not affect the normal flow of water in the pipeline. S2. Blockage warning: The pressure display device monitors the pressure changes of the airbag to determine the blockage of the pipeline; S3. Pipeline maintenance and blockage prevention: After determining the location of pipeline blockages and congestion points or identifying the pipeline that is prone to blockage and corresponding obstacles in step S2, adjust the inflation volume of the airbag in the maintenance device near the congestion point or obstacle point, and use air pressure to squeeze the water in the pipeline to achieve the effect of unblocking or pre-unblocking. S4. If the pipe is blocked and the pipe cannot be cleared according to step S3, continue to inflate the airbag in the upstream maintenance device of the blockage point to cut off the corresponding pipe and disassemble, repair or replace the blocked pipe.

2. The method for early warning and auxiliary maintenance of pipeline drainage blockage according to claim 1, characterized in that: The main body to be repaired is a short pipe structure, with one end open and the other end closed.

3. The method for early warning and auxiliary maintenance of pipeline drainage blockage according to claim 2, characterized in that: The airbag is made of elastic material.

4. The method for early warning and auxiliary maintenance of pipeline drainage blockage according to claim 3, characterized in that: A protective plate is provided at the end of the airbag away from the closed end of the short tube to prevent the airbag from rupturing when it comes into contact with the tube wall in an inflated state.

5. The method for early warning and auxiliary maintenance of pipeline drainage blockage according to claim 2, characterized in that: The short pipe is detachably fitted with a pipe cap at its closed end.

6. The method for early warning and auxiliary maintenance of pipeline drainage blockage according to claim 5, characterized in that: The pipe cap is provided with a flexible gasket to improve the sealing between the pipe cap and the short pipe.

7. The method for early warning and auxiliary maintenance of pipeline drainage blockage according to claim 1, characterized in that: In step S2, the determination of pipeline blockage is as follows: if the pressure display device shows a significant increase in the pressure of the airbag, it indicates that the pipeline downstream of the corresponding inspection port is blocked; if the pressure display device shows a small increase in the pressure of the airbag, it indicates that the pipeline downstream of the corresponding inspection port is prone to blockage.

8. The method for early warning and auxiliary maintenance of pipeline drainage blockage according to claim 7, characterized in that: The method for determining the location of the congestion point is as follows: Along the water flow direction, when there are at least two inspection ports on the pipeline, and the airbag pressure of one inspection device increases significantly while the airbag pressure of the adjacent downstream inspection device remains unchanged, the congestion point is located on the pipe section between these two inspection devices; when the pressure of one inspection device increases significantly while the pressure of the inspection devices on the branch pipes connected to the riser corresponding to that inspection device remains unchanged, the congestion point is located at the lower end of that riser; when the pressure of all inspection devices increases significantly, the congestion point is located downstream of the pipe section corresponding to the inspection device with the highest pressure.

9. The method for early warning and auxiliary maintenance of pipeline drainage blockage according to claim 8, characterized in that: In step S3, the specific operation of pipeline maintenance and blockage prevention is as follows: the adjacent airbags of the upstream airbags of the pipe section corresponding to the blockage point or obstacle point are inflated, the upstream airbags of the pipe section corresponding to the blockage point or obstacle point are inflated, and the air pressure is used to squeeze the water to achieve the effect of unblocking or pre-unblocking.

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