RU41748U1 - DEVICE FOR ANALYSIS AND IMPROVEMENT OF RELIABILITY OF HEADED PIPELINES OF WATER SUPPLY AND WATER DISPOSAL SYSTEMS - Google Patents

Abstract

The utility model relates to the field of urban water supply and sanitation, in particular, for monitoring the operational characteristics of pressure urban municipal networks, planning pipeline rehabilitation facilities and choosing the best methods for their rehabilitation. The device comprises a primary information processing unit, an accident information selection and analysis unit, an inventory unit, an operation information filtering unit, a reliability filtering unit connected in series to their outputs, a unit for selecting potential rehabilitation facilities for accident rate, a unit for collecting and processing information on corrosion and bio-formations and abrasive wear, a ranking block of potential sanitation facilities and a printing device. The unit for collecting and processing information on corrosion and biofouling and abrasive wear is equipped with a cell for a comprehensive assessment of the pipeline load bearing capacity by the residual wall thickness and a cell for the selection of rehabilitation methods in the form of channels for the aggregate optimization of parameters in terms of cost, duration of the technological cycle, pipe service life and diameter loss after rehabilitation. The device allows to increase the reliability of the analysis of the state of pressure head water supply and drainage networks, to select the most defective sections by a set of indicators and to determine the optimal method of rehabilitation, minimizing the probability of selection error, which gives a great economic effect.

Description

The utility model relates to the field of urban water supply and sanitation, in particular, for monitoring the operational characteristics of pressure urban municipal networks, planning pipeline rehabilitation facilities and choosing the best methods for their rehabilitation.

Known devices for selecting objects of rehabilitation of water supply networks, based on the assessment of the forecast survival parameters of pipelines, the period of their useful operation and determining the priority of restoration for a number of external factors, combined into appropriate blocks and cells, which include the age of the pipe and material of its manufacture, the depth at construction, hydraulic characteristics, the presence of aggressive soils, groundwater, the degree of intensity of transport and passenger flows, population density, etc. (Utility Model Certificate No. 2125 of July 2, 2001, “A device for analyzing the reliability of pipelines in a city water network”).

Also known are devices for selecting sanitation facilities for drainage networks based on predicting the survival of pipelines, their useful life and determining the priority of recovery by analyzing integrated information on accident rate, inventory and operation, structural damage (offsets, subsidence) , cracks, violations of the original pipe shape, etc.) and functional changes in the operation of pipelines during their long-term operation, i.e. those negative circumstances that may

be identified by modern technical diagnostic tools (Utility Model Patent No. 31137 dated March 25, 2003, “A device for analyzing the reliability of pipelines of a city drainage network” and a positive decision on the grant of a patent for an invention “A device for analyzing the reliability of pipelines of a municipal drainage network” dated 12.04. 04. by application No. 2003107947, priority of 03.25.03.).

The device comprises a primary information processing unit, an accident information selection and analysis unit, an inventory unit, an operation information filtering unit, a reliability filtering unit connected in series to their outputs, a unit for selecting potential rehabilitation facilities for accident rate, a unit for collecting and processing information on corrosion and bio-formations and abrasive wear, a ranking block of potential sanitation facilities and a printing device.

A disadvantage of the known devices is the relatively high probability of errors in choosing a list of addresses of potential objects and methods for their rehabilitation due to the lack of information about the residual bearing capacity of the pipeline, determined by the thickness of its wall. In known devices, only the degree of abrasive wear of the pipe material is ascertained, without any assessment of the carrying capacity of the pipeline, its operating conditions, operating conditions, environmental conditions and other parameters responsible for choosing a specific restoration method that can increase the reliability of the pipeline system as a whole.

The objective of this utility model is to eliminate these shortcomings by: efficiently selecting potential rehabilitation objects according to the actual physical condition of the object - the value of the residual bearing capacity of the pipeline (determined through its wall thickness) and a comprehensive assessment of the environment, as well as the selection of optimal rehabilitation methods that can improve reliability

pipelines by a comprehensive comparison of individual performance indicators, in particular, cost, duration of the technological cycle, the life of the pipeline and the loss of diameter after rehabilitation.

The problem is solved in that in the device, the unit for collecting and processing information on corrosion and biofouling and abrasive wear is equipped with a sequentially installed cell for a comprehensive assessment of the carrying capacity of the pipeline by the residual wall thickness and a cell for choosing rehabilitation methods, with inputs connected to the outputs of the block for selecting potential rehabilitation objects, and outputs to the inputs of the ranking block of potential rehabilitation facilities. In addition, the cell for choosing sanitation methods is made in the form of channels for the aggregate optimization of parameters in terms of cost, duration of the technological cycle, pipeline service life and diameter losses after rehabilitation.

The device is illustrated by drawings, where:

figure 1 shows a block diagram of a device

figure 2 shows a block diagram of the collection and processing of information on corrosion and biofouling and abrasive wear with the corresponding cells and channels.

The device includes a primary information processing unit 1, the outputs of which are connected in parallel to a unit for selecting and analyzing accident information 2, an inventory unit 3, and a filtering block for operating information 4. To the outputs of blocks 2, 3, and 4, a filtering block for reliability parameters 5 is connected in series selection of potential sanitation facilities for accident 6, a unit for collecting and processing information on corrosion and bio-formations and abrasive wear 7 and a ranking block for potential sanitation facilities 8 connected to the furnace to the charging device 9. The unit for collecting and processing information on corrosion and biofouling and abrasive wear 7 is equipped with sequentially installed cell 10 of an integrated carrier assessment

the ability of the pipeline to the residual wall thickness and cell 11 of the choice of rehabilitation methods. Cells 10 and 11 are connected by inputs to the outputs of the block of selection of potential sanitation facilities 6, and by outputs to the inputs of the block of ranking of potential sanitation facilities 7. Cell 11 of the choice of sanitation methods is made in the form of channels for the aggregate optimization of parameters at cost 12, duration of the technological cycle 13, and pipeline service life 14 and diameter loss after rehabilitation 15.

The device operates as follows.

In the primary information processing unit 1 (Fig. 1), complete information on the state of pressure pipelines is entered via external communication channels (not shown in the drawing). This information may come in writing - questionnaires, protocols, inquiries, complaints, in the form of faxes and telephone messages. The information is filtered in parallel with the installed units for selecting and analyzing information on accident 2, inventory 3 and filtering information for operation 4. Then the information goes to the filtering unit for reliability parameters 5, where a list of objects with increased accident rate is sampled, and to the block for selecting potential rehabilitation objects for accident rate 6, where according to complex indicators (duration of pipeline operation, soil condition, groundwater availability, pipeline laying depth, etc.) is a preliminary list of addresses of potential targets sanitation. After that, the information enters the unit for collecting and processing information on corrosion and bio-formations and abrasive wear 7, where the preliminary list is narrowed and the addresses of potential rehabilitation objects are specified based on the assessment of the pipeline's carrying capacity (Fig. 2). This is achieved by passing information through cell 10 of a comprehensive assessment of the carrying capacity of the pipeline by the residual wall thickness, determined both experimentally and analytically by special mathematical relationships, taking into account all

negative factors affecting the physical condition of operating underground pipelines.

In the next cell 11 of the choice of sanitation methods, address information on potential sanitation facilities passes through internal channels of aggregate optimization in the following parameters:

cost 12, the duration of the technological cycle 13, the service life of the pipeline 14 and the diameter loss after rehabilitation 15. Filtering the information through the appropriate channels allows you to determine the minimum weighted average total value corresponding to the desired rehabilitation method, which is optimal for the complex of the above parameters. The result of the work of cell 11 are recommendations on the best rehabilitation methods for the list of objects proposed for renovation.

In the ranking block of potential sanitation facilities 8, a final list of addresses of sanitation facilities is formed, including the allocation of priority and perspective ones.

The printing device 9, upon request, provides information on a list of potential objects with addresses and the optimal method for their rehabilitation.

The final result of the operation of the device is to analyze and increase the reliability of pressure pipelines of water supply and sanitation systems by multilevel effective selection of the most rehabilitated by the set of indicators indicators of rehabilitation (network sections) from the many operated with the printing of their lists and passports, as well as choosing the optimal method for their restoration.

The economic effect of the application of the invention can be expressed in minimizing the probability of error when choosing a potential rehabilitation facility on pressure networks, the cost of which in a modern city with a saturated underground

infrastructure comparable to laying several meters (depending on diameter) of a new pipeline route.

Claims (2)

1. A device for analyzing and improving the reliability of pressure pipelines of water supply and sanitation systems, comprising a primary information processing unit, an accident information selection and analysis unit connected in parallel to its outputs, an inventory unit, an operation information filtering unit, a filtering unit connected in series to their outputs reliability parameters, a block for selecting potential sanitation facilities for accident rate, a block for collecting and processing information on corrosion and bio-formations and abrasive wear, a unit for ranking potential rehabilitation objects connected to a printing device, characterized in that the unit for collecting and processing information on corrosion and biofouling and abrasive wear is equipped with a sequentially installed cell for a comprehensive assessment of the pipeline's bearing capacity by the residual wall thickness and a cell for choosing sanitation methods, inputs connected to the outputs of the block for selecting potential rehabilitation objects, and the outputs for the inputs of the ranking block for potential rehabilitation objects. 2. The device according to claim 1, characterized in that the cell for choosing sanitation methods is made in the form of channels for the aggregate optimization of parameters in terms of cost, duration of the technological cycle, pipe service life and diameter loss after rehabilitation.