RU1343U1 - Device for detecting defects in deep-water releases of treatment facilities - Google Patents

Abstract

A device for detecting defects in deep-water discharges of treatment facilities, comprising a carrier with a television module and an instrument box located on the carrier and connected to one another, the latter being connected via a communication line to a recording device, characterized in that the carrier is made in the form of a wheeled trolley on the outside of which by means of brackets made with the possibility of their reciprocating movement relative to the trolley, two television modules are installed connected to with a box and through a communication line with a recording device, the wheeled trolley is equipped with a distance meter connected through the instrument box to a recording device.

Description

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A device for detecting defects in deep-water releases of treatment facilities (GVOS).

The proposal relates to the field of water supply and sewerage facilities and can be used, for example, to control pipes of sewage treatment plants underwater, as well as to control pipelines of any other purpose located under water and to serve environmental tasks.

Wastewater treatment plants of coastal cities or cities located on the banks of large reservoirs discharge the treated effluents of industrial enterprises and the household sector into these reservoirs through the pipes of the deepwater outlet of treatment facilities (GVOS).

Outlets of sewage treatment plants laid at the bottom of the reservoir are subject to the physical effects of natural forces. Underwater currents and surface waves set in motion sections of the bottom surface, as a result of which some sections of the GVOS pipeline are filled up, while others are washed out and devoid of support. This creates dangerous stresses on the design of GVOS, which can lead to deformation and destruction of individual sections of GVOS. At the same time, a chemical impact is exerted on the GVOS pipeline both from the side of the transportation products and from the outside, As a result, the formation of trepidans, fistulas, etc. is possible, which leads to leakage of the transportation products and environmental pollution.

In practice, to monitor the serviceability of the pipeline for the release of treatment facilities located deep under water and to determine the place of destruction of the WWTP, the pipeline is inspected using divers. But such works do not give a clear picture of the state of the controlled area, because there is no binding to any coordinate system of the controlled object, as well as insufficient maneuverability of inspection, which complicates the completion of subsequent repair work and significantly increases the period of their implementation.

S Autonomous and towed underwater vehicles of BF / Vfj OS SFA UHBL, etc. are known. These devices are equipped with various sensors, including photo and television cameras, and are intended for a comprehensive study of the seabed, inspection of underwater structures and support for divers. However, their use to detect defects in subsea pipelines is inefficient because firstly, to inspect the entire surface of the pipeline, it is necessary to make several passes along the pipeline, which impairs visual perception and makes it impossible to link all parts of the video image of the pipeline to the coordinate system, and secondly, due to the lack of mechanical contact of the underwater vehicle with the pipe, it becomes impossible accurate instrumental measurements of the location of detected damage and displacements of the pipeline relative to the ground.

The well-known device adopted as a prototype, also intended for underwater observations (see company brochure y, l.f (n €

/ FGrlAJC 5,

contains an underwater carrier in the form of a frame on which a television module and an instrument box are placed, interconnected and, via a communication line, with a recording device.

Known device remotely controlled. It has four motor propulsion systems: two motors for moving forward and backward, two motors for moving sideways and vertically. The video signal of the camera installed on the underwater media is fed to the monitor.

The known device does not provide simultaneous inspection of the surface of the pipeline along the entire diameter of the pipe in the plane perpendicular to its axial line and the determination of the spatial position of the pipeline at any (current) time point of control of the object.

The proposed device is designed for routine inspection, selective control .and maintenance of underwater pipelines of GVOS provides a visual inspection of the entire surface of the pipe and adjacent sections of the bottom; determination of the spatial position of the pipeline; determination of leaks, due to the fact that the carrier is made in the form of a wheeled trolley, on the outside of which by means of brackets made with

POSSIBILITY of their movement up and down relative to the trolley, two additional television modules are added that are connected to the instrument box and through a communication line with a recording device, while the wheeled cart is equipped with a distance meter connected to the instrument box.

Visual inspection of the entire surface of the WWTP pipe and adjacent sections of the bottom is carried out through the use of three cameras, structurally arranged so that their optical, topics cover the entire surface of the pipeline in the plane perpendicular to its axial line and adjacent sections of the bottom. At the same time, the coordinates of the given control point relative to the pipeline are determined, due to the direct contact of the device with the pipe being examined and the determination at each current moment of the distance traveled along the pipeline, course and other parameters in accordance with the task being solved. For example, leak detection is possible by continuously measuring salinity and temperature in relation to a specific location on the pipeline. A sharp change in the mentioned parameters signals the release of transportation products into the environment.

The invention is illustrated in the drawing, where in FIG. I shows the carrier (straight view), in FIG. 2 - carrier (top view), in FIG. 3 is a block diagram of a device for detecting defective GVOS.

The device for detecting GVOS defects consists of a carrier, which is a wheeled trolley I on which a television module 2 is mounted. The television module includes a television camera with a wide-angle porthole lens and a light source. On both outer sides 3 of the wheel trolley I, on brackets 4 made with the possibility of their movement up and down relative to the trolley, for example by means of a swivel joint, two additional television modules 2, similar to the first, are fixed. The carrier I is equipped with a distance sensor, which can be performed, for example, in the form of a counter for the number of rotations of one of the wheels of the trolley, or a measuring wheel 5 aligned with it with a circumference that is a multiple of fractions of a meter. Information from the counter of the number of rotations is transmitted to the instrument box b.

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7, measuring sensors, for example, a pressure sensor 8, a heading sensor 9, a distance sensor 10, a temperature sensor II, a salinity sensor 12, etc., information signals from which are transmitted through a signal generation unit 13 and a communication line 14 to a recording device 15.

Wheel trolley I is connected to the control line of the communication vessel 14, which represents a combined cable-cable, through which information signals and power are transmitted.

The device operates as follows.

Wheel trolley I is mounted on the top of the pipe. Using the expandable brackets 4, depending on the diameter of the pipe being examined, lateral television modules 2 are installed so that the side surfaces of the pipe and the bottom of the reservoir on which the pipe is laid fall into their field of vision. Thanks to this arrangement of television cameras, it becomes possible to observe the entire surface of the pipeline and the adjacent sections of the bottom on which it is laid in one passage of a wheeled trolley through the pipeline.

The wheel trolley I moves along the pipeline, while the video signals from the three television modules 2 are fed to the input of the format conversion unit 7 and through the communication line 14 to the recording device 15. As any format conversion unit, any of the known in video technology can be used (see, for example , the prospectus of the company r «ly s / 7 with a copy attached)). The signals from the measuring sensors through the signal former 13 and the communication line 14 are also fed to the recording device 15. Figure 3 of the drawing shows a block diagram of a recording device 15.

The signal from the format conversion unit 7 through the communication line 14 is fed to the input of the amplifier 16, from the output of which the formulated and amplified video signal is fed to the first input of the mixer 17, The signal from the measuring sensors is transmitted to the second input of the mixer 17 through the communication line and controller 18. From the output of the controller 18, the signal is supplied to a printing device 19, which provides a graphical representation of a three-dimensional image of the controlled object. In the IJ mixer, the video signal is superimposed from the television modules and information captions coming from the controller 18.

From the output of the mixer 17, a fully formed television image of the object with informational titles (values of the distance traveled, pressure, salinity, temperature, etc.) making it documentary is fed to the input of the DVR 20 connected to the television monitor 21.

The screen of the television monitor 21 is conventionally divided into four sectors, three of which display sections of the pipeline being inspected: the type of pipe on the left and the bottom, the type of pipe on the right and the bottom, and the view of the pipe from above. The fourth sector displays alphanumeric and graphic information coming from the controller 18, corresponding to the image in three other sectors of the screen.

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Claims (1)

A device for detecting defects in deep-water discharges of treatment facilities, comprising a carrier with a television module and an instrument box located on the carrier and connected to one another, the latter being connected via a communication line to a recording device, characterized in that the carrier is made in the form of a wheeled trolley on the outside of which by means of brackets made with the possibility of their reciprocating movement relative to the trolley, two television modules are installed connected to with a box and through a communication line with a recording device, the wheeled trolley is equipped with a distance meter connected through the instrument box to a recording device.