WO1987006994A1 - Process for repairing damage to pipes of a supply system - Google Patents

Abstract

Process for repairing damage to pipes of a supply system, whereby a monitoring station indicates, on a pipe network plan of the supply system, the damaged section of pipe, together with the type of damage which has occurred, the shut-off valves situated closest to the point of damage, as well as the material and operating parameters of the damaged pipe section. Next, the appropriate shut-off valves are operated and the repair personnel sent to the site of the damage, together with the necessary spare parts and mechanical equipment. On completion of the repairs, the shut-off valves are opened, with the result that the repaired pipe section of the supply system is again made available for the conveyance of the medium.

Description

 Procedure for repairing damage to the piping of a supply system

Subject of the invention

The invention relates to a method for eliminating a harmful liability of pipelines of a supply system, wherein an area of the harmful liability is freed from a means conveyed in the pipelines and the damage liability is eliminated. Such supply systems are used for industrial purposes, e.g. applied within a company. However, the invention can be used for public municipal supply systems, e.g. are used for water supply or gas supply, where the funds are transported in pipelines. PRIOR ART The elimination of harmful liability and the

Maintaining larger supply systems, in particular those of the municipal water and gas supply, present increased difficulties today. These supply systems are sometimes strong. obsolete, especially in the big cities, so that the malicious damage occurs fairly frequently and rapsodically, and the maintenance is carried out without real information about the condition of the whole system, mostly with an ad hoc character. It is well known that the means conveyed in supply systems, be it only water, have an ever increasing value, and the means flowing out of the supply system in the damaged section can possibly cause high damage. Furthermore, the roadblocks often associated with the removal cause considerable traffic obstructions as well as those due to

* §> Elimination of necessary supply failures, inconveniences or even operational disruptions at the consumer offices.

The known and previously used methods of eliminating the harmful substances mainly affect

5 ^' borrowed from the local knowledge of the workforce

Disposal services. Accordingly, when a damage report is reported, the service personnel are alerted who rushes to the better or less specific point of the damage with a motor vehicle,

IQ: the "C_τarakte ^{" determines} the incidence of damage by examining the signs visible on the top surface by eye inspection and 'afterwards; the removal of the defective section ^' d: es supply system begins. The members of the staff who have more experience remember

15; to the positions and, if necessary, to the type of. the

The location of the closing fittings which fall closest to the damage and which are provided in the supply system. These locking devices are then operated to close until the agent flows out

2C _: - the damaged pipe no longer occurs at the fault location. It often happens that a fairly large region is switched off from the supply system, since the closure organs closest to the fault location are not always found or if, however,

2 ^: found ,, cannot always be closed with the tools available. The most important thing is that the conveyance of the conveyed agent from the pipeline should be stopped as soon as possible, especially with such dangerous agents as natural gas.

30 ^"• The next step in the known methods is to open up the damaged pipeline. Most of the time, however, the conveyed agent does not come to the surface where the pipeline is, but rather, for example, ^' seeps into the ground and only on one 35 .. another point becomes visible. The unlocking itself - 3 -

can also be difficult. The personnel arriving at the point of becoming liable for damage must have the tools and machines required for unlocking with them. If this is not the case, the necessary tools and machines should also be put in place.

The same applies to repairing the damaged and unlocked pipeline. If the necessary tools, materials and machines are not included, they should be brought there.

As can be seen from the above, the removal of malicious files usually takes a fairly long time and it is also not possible to switch off the smallest section of the supply system. With the known methods, it is still a disadvantage that a relatively large supply of personnel, materials, tools and machines should be kept on standby and transported to the site of the damaging process. No further statements can be made about the damage to be expected and / or about the expected service life and in this way about the maintenance of the system that has become necessary.

According to the previously known methods, the consumer points cannot be notified in advance of the impending supply failure, which is particularly disadvantageous for larger consumers in factories. The same also applies to switching on the system after the fault has been eliminated.

Switching off the section which has become defective sometimes also affects part of a main line, as a result of which the supply to the consumers which have not been switched off but are located after the section which has become defective becomes worse. In the known process, no instructions are given to alleviate these difficulties. Practice has shown that when planning and implementation of a renewal, extension or even reconstruction of the supply system, the operating experience, in particular the previous damage claims, should be taken into account. That is according to the known methods

5 not possible.

Essence of the invention

The invention now has the task of eliminating the imperfections of the previously known methods and a method for eliminating harmful substances in the process

10 pipes to create a supply system, with which the ^; Elimination much quicker, easier, cheaper and with less negative effects on the consumer can be realized and that also the maintenance, operation, reconstruction of the supply

15 makes systems cheaper. ^•

The further development according to the invention now consists in first locating the position of the harmful liability on a network map of the supply system, then the type and position of the location of the harmful liability uπ-

20 indirect sealing fittings provided in the pipelines as well as the material and operating parameters of the damaged pipeline are determined, then the workforce, materials and machines required to eliminate the harmful substances are selected

25 ^'- are unτj .befördert to the site of Schadhaf Werdung, the predetermined lock valves are actuated, and ^d' is the äτjurch become defective portion of the Versorgungs¬ off system, after which the Schadhaftwerdung - is eliminated, the shutter valves operated to open

30 and thereby the section of the supply system is switched on again.

It is advantageous if, after the locking fittings to be actuated are ascertained, those connected to the section of the supply system to be switched off

35. ^' Konsumentstelleπ about the impending failure of the Supply to be notified. The closure organs can also be operated remotely.

In an advantageous implementation of the method according to the invention, we can proceed in such a way that, according to the typical types of damage, several sets of personnel, tools, materials and machines for disposal are put together and kept on standby. Each set can be arranged on a motor vehicle. In the sense of the invention, it is advantageous if the location of the damage, the determination of the closure organs and the material and operating parameters as well as the selection of the suitable repair unit, if necessary the notification of the consumer points and the remote actuation of the closure fittings in and from a central location Place to be realized, in which the harmful liability is reported. It is further of advantage if all parameters of the supply system, in particular the topological and fluidic data of the pipelines, the sources of the supply system, the technical and topological data of the objects provided in the supply system, the ideas of the requirements of the The supply points connected to the supply network and the available supply of materials and machines for disposal and repair units are kept in an overview. The reported damage claims as well as the process of remedial measures can also be registered in the central location. So it will be in. The meaning of the invention enables the planned maintenance of the supply system to be determined on the basis of the information which is kept as an overview and registered, and that the information is used to produce a statistic of the 'harmful liability factors', from which further and / or future operating circumstances of the Supply system is inferred. Because of the conclusions from the statistics can be determined advantageously the staff, materials ^' and machinery to be kept ready. It is also possible in the following that damage statistics are simulated on the basis of statistics and thus for eliminations

5. ^' Future damage claims are processed or that an expansion and / or reconstruction of the supply system is carried out taking into account the statistics.

In the sense of the invention, an extremely simple one

10 Realization if mathematical methods, computational means are used. It is advantageous here if a computing machine is used in the central location with peripherals for data input and data display. For the purposes of the invention,

Wirklic'hurrgen 15 allows wherein the fernbetätigb ^'areπ encryption schlussorgaπen the supply system through the machine Rechen¬ be controlled automatically and notifying the Verbraucherstelleπ on the elimination and the Ein¬ the supply circuit by the calculator automatically carried 0th

DETAILED DESCRIPTION OF REALIZATION EXAMPLES Further details of the invention are presented in more detail with reference to the implementation example of a municipal water supply system. 5 In the center of the Wasserversorgungssyste it is installed a calculating machine ^'with the usual data input and Datenzeigegeräteπ wherein, all figures of belonging to the central supply system are entered. In most cases, the existing system 0 must be measured beforehand. In this way, the location, the topological, fluidic, hydraulic and material details of the pipeline, the location and technical parameters of the objects provided in the pipelines, for example those of the closure members and the feed water sources. 5 the identi ification information and consumption quantities of the - -

Supply system connected consumer points as well as the qualification and quantity information of the available staff, tools, materials and machines saved. For the purposes of the invention, several sets of

Personnel, tools, materials, machines kept in readiness, which are put together depending on the properties of the given supply system. In this way, working groups can be put together for pipes made of cast iron under asphalt pavement or other for pipes made of plastic etc. in buildings. These units of elimination are each in a motor vehicle, e.g. arranged in a truck with a closed loading area and provided with all the means necessary for its special tasks.

Erfinduπgsgemäss is reported a Schadhaftwerduπg, the supply system in the ^{headquarters',} where, for example, the street name and number, or communicated in the village to identify other suitable information (eg front of the church on the main square, etc.). The service provider dispatcher encodes this information in the central office and enters it into the computing machine. After a few seconds, all the information necessary for the elimination will be released. The place of Schadhaftwerdung is exactly ^'on a Netzplaπ of the scheme appears. At the same time, the positions of the closure organ are indicated which enable the defective section to be switched off and which are closest to the location of the fault. This means that the smallest possible pipe section of the supply system is switched off, but the damaged location is freed from the transported means. The details of the pipe section and the closure organs are also given. The corresponding repair unit can immediately speak accordingly be selected and alarmed, who have the tools, materials and machines required for disposal. At the same time, the affected consumer units can be informed of the impending supply failure and, if necessary, of its duration. be notified.

The repair unit selected in accordance with the defective item now moves to the precisely specified location of the defective pipeline and actuates the closure armature, which is also precisely specified, to close. The type of locking armature and the manner of actuation, or the operations to be carried out at the damaged area, are already well known. The defective pipe section is unlocked and the ^' fault is eliminated, whereby all the tools, materials and machines required for the work processes are available in the vehicle. Then the working gruge is added again and the surface is at least provisionally restored.

At the end of the elimination of the damage liability, the information describing the damage liability is entered into the computing machine and stored there. From this information, statistics can be compiled that enable statements to be made about the frequency of damage and the expected service life of the individual sections of the supply system. In this way, on the one hand, preparation can be made in advance for future damage, on the other hand, the scheduled maintenance can be directed to the more endangered areas, or the reconstruction in the areas can be adjusted accordingly. The same also applies to the objects provided in the supply system, the renewal of which can also be decided by the statistics of the defective items.

With the help of the above-mentioned statistics, it is also possible to simulate harmful damage factors, which also promotes the preparation and training of the personnel. The statistics furthermore provide extensive operating experience which can be useful in the expansion and / or reconstruction of the supply system. This can be, for example, the location of a new water source or the

5 a branch can be determined from the existing system.

The operating situation that arises after a section has been shut off can be evaluated at the headquarters and measures can be taken to reduce the adverse effects of the section's shutdown. After removal

In the event of a defective damage, the materials used can be made up immediately and the stock can be replenished. The computing machine can be connected to the central printer, so that the defective damage and its remedies can be documented and archived. On the abacus hereinafter also disclose such organs and the repair can be connected, which are remote-controlled, with the transfer to Schliesseπ of the closure orgaπs abacus from ^"comes automatically. With the calculators can

ZO eiπheiteπ alerted for elimination, or the connected consumer stations are automatically notified of the impending failure of the supply.

The method according to the invention can of course not only be used for water supply systems

Z5 are, but it is also suitable for other municipal or also for internal supply systems. Its use is of particular advantage for high-quality and / or dangerous conveyed funds.

Claims

 Claims 1. A method for eliminating a damaged pipe from a supply system, a region of the damaged pipe being covered by one in the pipe 5 transported funds is freed and the harmful liability is eliminated, characterized in that first the position of the harmful liability is located on a network plan of the supply system, then the type and position that directly encompasses the location of the harmful liability, in LQ the fittings provided for the pipelines as well as the material and operating parameters of the defective pipeline are determined, then the covering, materials and machines required for eliminating the damage are selected and the place of damage becomes 1 ^'5' are conveyed .werden operates the predetermined Verschlussarmatureπ and thereby the defective portion which has become the supply system _is turned off, after which the pollutants haftwerdung is eliminated, ^"the closure valves are operated to open and thereby the portion of the encryption ZCU care system is turned on again. Z ^" .. Method according to claim 1, characterized in that after the determination of the locking armature to be actuated, the consumer points connected to the section of the supply system to be switched off Be Z5 notifies the imminent failure of the supply over ^'. 3. The method according to claim 1 or 2, characterized in that the locking fittings are operated remotely. 4. The method as claimed in one of claims 1 to 3, characterized in that, according to the typical types of damage liability, several sets of deposits, Tools, materials and machines for disposal are put together and kept ready. 5. The method according to claim 4, characterized in that each set of a motor vehicle as one 5 repair unit is arranged. 6. The method according to any one of claims 1 to 5, characterized in that the location of the Schadhaftwerduπg, the determination of the locking elements and the material and operating parameters as well as the selection of the appropriate 10. repair unit, where appropriate, the notification of the consumer points and the remote actuation of the lock ¬ fittings are realized in and from a central point, in which the harmful liability is reported. 7. The method according to claim 6, characterized in that g e k e π πz e i c h - 15. n e t that all parameters of the Supply system, in particular the topological and flow information of the pipelines, the sources of the supply system, the technical and topological information of the objects provided in the supply system, 20 the identification information of the consumer point connected to the supply network and the available stock of materials and machines for disposal and. Repair units are kept in an overview. 8 .. Method according to claim. 6 or 7, thereby 25 ^' characterized in that the reported damage ^detention and the course of the removals are also registered in the central location. 9. The method according to claim 7 or 8, characterized in that the scheduled maintenance 30 of the supply system is determined on the basis of the information held and registered in an overview. 10. The method according to any one of claims 7 to 9, characterized in that a statistic of the damage is created from the information, from which to the further 35 and / or future operating conditions of the supply system - 12 - is concluded. 11. The method according to claim 10, characterized in that the staff to be kept ready, materials 5 and machines are determined on the basis of the conclusions from the statistics. 12. The method according to claim 10 or 11, characterized in that damage statistics are simulated on the basis of the statistics and thereby prepared for eliminating "future loans ^" . 10. 13 Method according to one of claims 10 to 12 , so ge.-k.ennzeichenne t that an expansion and / or Rekonstr.i_jk.tLon of the supply system can be realized taking into account the statistics. 14. Method according to .the claims 1 to 13, characterized in 15 ^'that it is realized using mathematical methods with rechentechnischeπ means. 15. The method according to claim 14, characterized in that a computer in the central location with peripherals of data input and data 2Q; display is applied. That the ferπbetätigbaren Verschluss¬ organs of the supply system are automatically controlled by the ^'calculator 16. The method according to claim 15, characterized geken nz calibration π et. 5 ^"17. The method according to claim 15 or 16, characterized in that the notification of the need Ver¬ create carried out via the cut-off and the switching on of the supply by the calculator automatically.