A shallowly buried underground leak-proof pipeline and working method thereof

Abstract

A shallow buried underground leak-proof pipeline and its working method, including a PLC controller, an outer pipe, an inner pipe, a water inlet water pressure sensor, a water outlet water pressure sensor, a solenoid valve and a mobile water leakage detection device, wherein the PLC controller is arranged on the ground, the outer pipe and the inner pipe are shallowly buried and laid underground in the horizontal direction, the inner pipe coaxial line is arranged inside the outer pipe, the water inlet water pressure sensor and the solenoid valve are arranged at the water inlet of the inner pipe, the water outlet water pressure sensor is arranged at the water outlet of the inner pipe, and the mobile water leakage detection device is arranged at the bottom of the outer pipe. The present invention adopts a pressure difference-humidity detection method to realize a device for stopping leakage and detecting a leakage point when a shallow buried underground pipeline leaks, thereby realizing stopping leakage and checking leakage during liquid transportation, so as to reduce the liquid loss when a shallow buried underground pipeline leaks and facilitate the later repair of the leakage point and the replacement of related pipelines, thereby saving more resources and extending the service life of the pipeline.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline installation, and in particular relates to a shallowly buried underground leak-proof pipeline and a working method thereof. Background Art

[0002] In our daily life, pipelines are an indispensable means of transportation. At present, most liquid pipelines are buried underground, in a complex environment and susceptible to corrosion, so leaks often occur. Pipeline leaks often bring a series of losses, not only causing waste of resources, but also the risk of environmental pollution. Given that most of the pipelines on the market today cannot stop leaks and detect leaks in time from the source. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a shallowly buried underground leak-proof pipeline and a working method thereof, which can not only prevent leakage losses in time, but also accurately identify the leakage point, facilitate timely repair and replacement, thereby saving more resources and extending the service life of the pipeline.

[0004] In order to solve the above technical problems, the present invention adopts the following technical scheme: a shallowly buried underground leak-proof pipeline, including a PLC controller, an outer pipe, an inner pipe, a water inlet water pressure sensor, a water outlet water pressure sensor, a solenoid valve and a mobile water leakage detection device, the PLC controller is arranged on the ground, the outer pipe and the inner pipe are shallowly buried in the ground along the horizontal direction, the inner pipe coaxial line is arranged inside the outer pipe, the water inlet water pressure sensor and the solenoid valve are both arranged at the water inlet of the inner pipe, the water outlet water pressure sensor is arranged at the water outlet of the inner pipe, the mobile water leakage detection device is arranged at the bottom of the outer pipe, the PLC controller is connected to the water inlet water pressure sensor, the water outlet water pressure sensor and the solenoid valve respectively through signal lines, and the PLC controller is connected to the mobile water leakage detection device through a control line temporarily stored inside the outer pipe.

[0005] The mobile water leakage detection device includes a conduit, a shell, a micro humidity sensor and a micro motor. The conduit is parallel to an outer tube and is arranged at the bottom of the outer tube. The top of the conduit and the bottom of the outer tube are connected vertically. The shell is arranged in the conduit. The micro humidity sensor and the micro motor are both arranged in the shell. The micro humidity sensor is arranged above the micro motor. The main shaft of the micro motor is connected to a roller rolling along the conduit through a gear transmission mechanism. The micro humidity sensor and the micro motor are respectively connected to a PLC controller through the control line.

[0006] A working method for a shallowly buried underground leak-proof pipeline includes the following processes: water flows in from a water inlet of an inner pipe and flows out from a water outlet of the inner pipe; when a leak occurs at a certain point of the inner pipe, the leaked water flows downward along the outer wall of the inner pipe into the inner part of the outer pipe, and finally flows into a conduit; a PLC controller receives a signal that the pressure difference between a water pressure sensor at the water inlet and a water pressure sensor at the water outlet is inconsistent, the PLC controller sends a command signal to an electromagnetic valve, and the electromagnetic valve cuts off the water inlet of the inner pipe to block water from flowing into the inner pipe; at the same time, the PLC controller sends a signal to a micro motor, the micro motor starts, and the micro motor drives a roller to move in the conduit toward the water outlet; when the micro humidity sensor detects a leak in the conduit, the signal of the leak point is transmitted to the PLC controller, the PLC controller commands the micro motor to stop, and determines the position of the leak point; in the next step, the ground at the leak point is dug up to deal with the leak point of the inner pipe.

[0007] By adopting the above technical scheme, the present invention adopts an inner tube to transport water or other liquids, and the outer tube serves to collect leaking water and protect the inner tube during construction. The water inlet water pressure sensor and the water outlet water pressure sensor respectively monitor the water inlet and outlet water pressures of the inner tube, the solenoid valve is used to cut off the water inlet, the conduit at the bottom of the outer tube is used to collect the leaked liquid, the micro motor is used to drive the roller to move along the conduit, and the micro humidity sensor detects the leaked liquid and its location.

[0008] The present invention provides a device which adopts a pressure difference-humidity detection method to stop leakage and detect leakage points when a shallow underground pipeline leaks, thereby achieving leakage stopping and leak detection during liquid transportation, and is used to reduce liquid loss when a shallow underground pipeline leaks, and facilitate the later repair of the leakage point and the replacement of related pipelines, thereby saving more resources and extending the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention;

[0010] Figure 2 yes Figure 1 Schematic diagram of the cross section at the water inlet. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] like Figure 1 and Figure 2As shown, a shallow buried underground leak-proof pipeline of the present invention comprises a PLC controller, an outer pipe 1, an inner pipe 2, a water inlet water pressure sensor 3, a water outlet water pressure sensor 4, a solenoid valve 5 and a mobile water leakage detection device, the PLC controller is arranged on the ground (not shown in the figure), the outer pipe 1 and the inner pipe 2 are shallowly buried and laid underground in the horizontal direction, the inner pipe 2 is coaxially arranged inside the outer pipe 1, the water inlet water pressure sensor 3 and the solenoid valve 5 are both arranged at the water inlet of the inner pipe 2, the water outlet water pressure sensor 4 is arranged at the water outlet of the inner pipe 2, the mobile water leakage detection device is arranged at the bottom of the outer pipe 1, the PLC controller is connected to the water inlet water pressure sensor 3, the water outlet water pressure sensor 4 and the solenoid valve 5 respectively through signal lines, and the PLC controller is connected to the mobile water leakage detection device through a control line temporarily stored inside the outer pipe 1.

[0013] The mobile water leakage detection device includes a conduit 6, a shell 7, a micro humidity sensor and a micro motor (not shown in the figure). The conduit 6 is parallel to the outer tube 1 and is arranged at the bottom of the outer tube 1. The top of the conduit 6 and the bottom of the outer tube 1 are connected up and down. The shell 7 is arranged in the conduit 6. The micro humidity sensor and the micro motor are both arranged in the shell 7. The micro humidity sensor is arranged above the micro motor. The main shaft of the micro motor is connected to a roller rolling along the conduit 6 through a gear transmission mechanism. The micro humidity sensor and the micro motor are respectively connected to the PLC controller through the control line 8.

[0014] A working method for a shallowly buried underground leak-proof pipeline includes the following processes: water flows in from the water inlet of an inner tube 2 and flows out from the water outlet of the inner tube 2; when a leak occurs at a certain point of the inner tube 2, the leaked water flows downward along the outer wall of the inner tube 2 into the interior of the outer tube 1, and finally flows into the conduit 6, a PLC controller receives a signal that the pressure difference between the water pressure sensor 3 at the water inlet and the water pressure sensor 4 at the water outlet is inconsistent, the PLC controller sends a command signal to the solenoid valve 5, the solenoid valve 5 cuts off the water inlet of the inner tube 2, and blocks the water from flowing into the inner tube 2; at the same time, the PLC controller sends a signal to a micro motor, the micro motor starts, and the micro motor drives a roller to move in the conduit 6 toward the water outlet direction, when the micro humidity sensor detects a leak in the conduit 6, the signal of the leak point is transmitted to the PLC controller, the PLC controller commands the micro motor to stop, and determines the position of the leak point; in the next step, the ground at the leak point is dug up to deal with the leak point of the inner tube 2.

[0015] The present invention adopts an inner tube 2 to transport water or other liquids, an outer tube 1 collects leaked water and protects the inner tube 2 during construction, a water inlet water pressure sensor 3 and a water outlet water pressure sensor 4 respectively monitor the water inlet and outlet water pressures of the inner tube 2, an electromagnetic valve 5 is used to cut off the water inlet, a conduit 6 at the bottom of the outer tube 1 is used to collect leaked liquid, a micro motor is used to drive a roller to move along the conduit 6, and a micro humidity sensor detects the leaked liquid and its location.

[0016] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A working method for shallow underground leak-proof pipelines, characterized in that: The shallow buried underground leak-proof pipeline comprises a PLC controller, an outer pipe, an inner pipe, a water inlet water pressure sensor, a water outlet water pressure sensor, a solenoid valve and a mobile water leakage detection device, wherein the PLC controller is arranged on the ground, the outer pipe and the inner pipe are shallowly buried and laid underground in the horizontal direction, the inner pipe coaxial line is arranged inside the outer pipe, the water inlet water pressure sensor and the solenoid valve are arranged at the water inlet of the inner pipe, the water outlet water pressure sensor is arranged at the water outlet of the inner pipe, the mobile water leakage detection device is arranged at the bottom of the outer pipe, the PLC controller is connected to the water inlet water pressure sensor, the water outlet water pressure sensor and the solenoid valve respectively through signal lines, and the PLC controller is connected to the mobile water leakage detection device through a control line temporarily stored inside the outer pipe; The mobile water leakage detection device comprises a conduit, a shell, a micro humidity sensor and a micro motor. The conduit is parallel to an outer tube and is arranged at the bottom of the outer tube. The top of the conduit is connected with the bottom of the outer tube up and down. The shell is arranged in the conduit. The micro humidity sensor and the micro motor are both arranged in the shell. The micro humidity sensor is arranged above the micro motor. The main shaft of the micro motor is connected to a roller rolling along the conduit through a gear transmission mechanism. The micro humidity sensor and the micro motor are respectively connected to a PLC controller through the control line. The working method includes the following processes: water flows in from the water inlet of the inner tube and flows out from the water outlet of the inner tube; when a leak occurs at a certain point of the inner tube, the leaked water will flow downward along the outer wall of the inner tube into the inner part of the outer tube, and finally flow into the conduit, and the PLC controller receives a signal that the pressure difference between the water pressure sensor at the water inlet and the water pressure sensor at the water outlet is inconsistent, and the PLC controller sends a command signal to the solenoid valve, and the solenoid valve cuts off the water inlet of the inner tube to block the water from flowing into the inner tube; at the same time, the PLC controller sends a signal to the micro motor, the micro motor starts, and the micro motor drives the roller to move in the conduit toward the water outlet. When the micro humidity sensor detects a leak in the conduit, the signal of the leak point is transmitted to the PLC controller, and the PLC controller commands the micro motor to stop and determines the position of the leak point; the next step is to dig up the ground at the leak point to deal with the leak point of the inner tube.

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