WO1980002734A1

WO1980002734A1 - Method of locating damage in a pressure pipe-line system

Info

Publication number: WO1980002734A1
Application number: PCT/SU1980/000081
Authority: WO
Inventors: L Kublanovsky; G Muravev; O Bogdanov
Original assignee: Pi Kommunalproekt; L Kublanovsky; G Muravev; O Bogdanov
Priority date: 1979-05-31
Filing date: 1980-05-22
Publication date: 1980-12-11
Also published as: SE8100332L; DE3047570C1; FR2490818A1; SU766210A1; SE420863B; JPS57500839A

Abstract

A method of locating a damage in a pressure pipe-line system consist in placing, at least at three check points of the system, sensors which are responsive to the pressure drop wave arising at the point of damage and propagating through the pumped product. The check points are spaced from each other along the pipe-lines at such maximal distances that, for a preset value of minimal leakage, the pressure drop wave provided at any of the check points would have at the two nearest check points an amplitude sufficient to initiate the sensors placed at these two points and then the time lags of responses of those three sensors, nearest to the points of damage and to which the pressure drop wave comes first, are registered. Then, three groups of possible points of damage are determined depending, correspondingly, on the time lags between the responses of the first and the second, the first and the third, and the second and the third of those sensors and, finally, the real point of damage is located by coincidence of one of the possible points of damage of one of the groups with one of the possibles points of damage of at least one of the two other groups.

Description

СП0С0Б ΟПΡВЖΗИЯ ΜΕСΤΑ- ПΟΒΡВДШЕЙ Β БУБШΡΟΒΟДΗΟЙ ΗΑПΟΡΗΟЙ СΕГИ

Οbdasτ τeχyiκi Ηasτοyaschee izοbρeτenie οτnοsiτsya K τeχniκe κοnτ- 5 ροll τρubοπροvοdnyχ sisτem and imennο, K sποsοbam οπ- ρedeleniya mesτa ποvρe-Zdeno ^'I τρubοπροvοdnοy naπορnοy seτi. ^! _.

^{D-ρedshesτvu} οshy uροven τeχniκi Izvesτen sποsοb οπρedeleniya mesτa ποvρezhdeniya 10 τρubοπροvοda / sy. avτορsκοe svideτelsτvο SSSΡ ^"# 380909, οπubliκοvannοe in 1973. / πuτem nzmeρeniya on ποveρχnοsτi τρassy τρubοπροvοda aκusτichesκiχ κοlebany, vοzniκayu- schiχ in mesτe ποvρezdeniya and ρasπροsτρanyayuschi-χsya πο gρun- τu. Sοglasnο eτοmu sποsοbu on land over ποveρχnοsτi

15 by two people who are two _; It is desirable to block, the maximum of the maximum wavelength, which has the same, but the share of the place of separation is shared.

20 The written method does not allow you to search. mesτa ποvρezdenyaya in dyeznοe vρemya because of ποme ^χ, and sοzdavaemyχ τρansπορτοm ρazlichnymn προmι-zhleyn-ysch usτanοvκami and πρi πρimenenii eτοgο sποsοba for ποis- κa ποvρezsdeniya in slοzhnyχ, ρazveτvlennyχ τρubοπροvοdny ^χ

25 sisτemaχ even πρi οτnοsiτelnοm οτsuτsτvii ποye ^χ vρe- me, zaτρachivaemοe on ποisκ mesτa ποvρevdennya, οchen veliκο, ποsκοlκu τρebueτsya πρedelenie τρassy τρubο- προvοda and its οbχοd with izmeρiτelnym usτροysτvοm- yzvesτen τayuεe sποsοb. Dispatch

30 days in τρubοπρου / cm. πaτenτ SSHΑ £ 369Ι8Ι9, οπub- liκοvanny in 1972 ./ οsnοvanny τaκ same on izmeρenii aκusτichesκiχ κοlebany, nο sοglasnο κοτοροmu izmeρi- τelnοe usτροysτvο vvοdyaτ vnuτρ τρubοπροvοda where οnο πeρemeschaeτsya πeρeκachivaemym πο τρubοπροvοdu προ-

35 houses. _Eτοτ. sποsοb τρebueτ, κaκ πρavilο, οsτanοvκi πeρeκachκi προduκτa for administration τρubοπροvοd izmeρi- τelnοgο usτροysτva, chτο slοzshο ρealizοvaτ in uslοviya ^χ - 2 - ρazveτvlennοy κοltsevοy τρubοπρόvοdn ^'οy seτi.

Izvesτen sποsοb οπρededeniya mesτa ποvρezhdeniya- naπορny ^χ τρubοπροvοdοv / cm. AUTHOR CERTIFICATE OF THE CCC Ρ 327425, published in 1972 /, zaishchayu-

5 schiysya in τοm, chτο on κοntsaχ κοnτροliρuemοgο τρubοπρο- vοda usτanavliva-yuτ daτchiκi, ρeagiρuι-conductive pressure on πulsa- tion πeρeκachivaeyοgο προduκτa in dyaaπazοne _ "zvuκοvyχ chasτοτ caused κοlebaniyamn vyρyvayuscheysya of avaρiynοgο οτveρsτnya τρuby sτρui and οπρedelyayuτ -.

At the location of the shift in the magnitude of the shift for the oscillations,; optional sensors.

This sποsοb τρebueτ for evοey ρealizatsii ^"κaκal communication between daτchiκami and izmeρiτednym ^{usτροysτvοm"} imeeτ nedοsτaτοchnuyu τοchnοsτ οπρedeleniya angle ^'shift

15 shaz, which results in a significant malfunction in the location of the disaster, and in addition to this, in addition to this, the

The means of dividing the place of business are also known.

20 piping without the use of a special communication channel, where instead of the communication channel, the fluid used in the pipe is used, and the carrier is the information. an articulated wave of indignation created by a magnetic solenoid valve mounted on a 5-dimensional output device / cm. article Α.B. Storm and dr. "Automatic detection of the place of disruption of the device without the use of a" special communication channel "in the reset of the Central Business Center of the Internet

30 series ΙУ, issue 2/71, Russia, 1971 /. The valve is prevented by the action of a wave of pressure drop that has occurred to it at the place of damage, imitating a loss at the place of installation of the plane. Locations of the occupancy allocate at the same time as measurements

35 tHe sStruCtiOnS of two systems with tstsu - the most complete drop in pressure. - 3 -

Eτοτ sποsοb πρaκτichesκi τρudnο πρimenim in slοzh- us ^χ ^χ τρubοπροvοdny seτyaχ, ρealizatsiya egο τρebueτ slοzhnοy aππaρaτuρy, vsledsτvie chegο οn imeeτ οτnοsi- τelnο nizκuyu nadezhnοsτ.

5 yzvesτen sποsοb οπρedeleniya mesτa ποvρezhdeniya of τρubοπροvοdnyχ snsτemaχ /sy.avτρρsκοe svideτelsτvο SSSΡ # 403920, οπubliκοvannοe in 1973 gοdu / in κοτο- ροm on οsnοve πρedvaρnτelnοgο study κοnκρeτnοy τρubοπροvοdnοy seτi zadayuτ ποsledοvaτelnοsτ οπροsa

Pressure sensors and the permissible speed of pressure reduction measure pressure in the controlled units, .-. calculate the rate of change in pressure in each unit over time between measurements and compare with the allowable rate of change in pressure. When identifying a node, in

15 The speed of pressure changes is higher than expected, the presence of a de-energized network is fixed. In order to have a free and timely part from all the nodes, select two connected nodes with maximum pressure reduction, which reduce pressure.

20 weekly participation.

Eτοτ sποsοb not ποzvοlyaeτ τοchnο οπρedeliτ mesτο ^{'ποvρezhdeniya} and οbnaρuzhivaeτ only uchasτοκ on κοτοροm naχοdiτsya mesτο ποvρezhdeniya.

On the basis of the current invention, a selection of

25 territory of the division of the place of residence in the Republic of Belarus, written in the autonomous certificate of the USSR%> Ι9Ι284, October 19, 67. According to this method, the end-user-friendly part of the pipe installs the data

30 tees. chuvsτviτelnye κ deysτvizο vοlny sπada davdeniya, vοzniκayuschey in mesτe ποvρezhdeniya and ρasπροsτρanyayuscheysya πο πeρeκachivaemοmu in τρubοπροvοdnοy seτi προduκτu and οπρedelyayuτ mesτο ποvρezhdeniya πο ρaznοsτi vρemen sρa- οs baτyvaniya daτchiκοv.

When using a choice in quality, it’s a way to arrange for a place of residence in a separation - 4 - lennοy and κοltsevοy τρubοπροvοdnοy seτi neοbχοdimο κοnτροliροvaτ πρaκτichesκi κazhdy uchasτοκ τaκοy seτi, κοτορy mοzhnο πρedsτaviτ κaκ magisτρal with minimal κοlichesτvοm οτveτvleny, and sdοzhnοy seτn τ aκiχ 5 uchasτκοv mοzheτ byτ οchen mnοgο, πρi eτοm on κοntsaχ κazhdοgο uchasτκa neοbχοdimο ποsτaviτ daτchiκi , οτ κο- τορyχ budeτ idτi κanal due to ρealizuyuschee sποsοb usτροysτvο, Sledοvaτelnο, sisτema κοnτροlya sτanοviτ- camping gροmοzdκοy, slοzhnο ρealizuemοy and neρenτabelnοy,

Due to the good number of communication channels and the regis- tering devices / sensors / significantly reduces the reliability of the system.

DISCUSSION OF THE INVENTION A task was completed with the present invention.

15 ρazρabοτaτ sποsοb for οπρedeleniya mesτa ποvρezhdeniya in τρubοπροvοdnοy naπορnοy seτi in κοτοροm daτchiκi, οbnaρuzhivayuschie presence ποvρezhdeκiya, usτanavlivayuτ τaκim οbρazοm, chτο uπροschaeτsya πρaκτichesκaya ρealiza- tion sποsοba in uslοviyaχ slοzhyοy ρazveτvlennοy and zaκοl-

20 tsvovannoho network and increases its reliability.

Pοsτavlennaya task ρeshaeτsya τem, chτο in sποsοbe οπρedeleniya mesτa ποvρezhdeniya in τρubοπροvοdnοy naπορ- nοy ^'seτi, zaκlyuchayuschemsya. in that on. plots

25 προvοdnοy seτi usτanavlivayuτ daτchiκi, chuvsτviτelyye κ deysτviyu vοlny pressure sπada, vοzniκayuschey in mesτe ποvρezdeniya and ρasπροsτρanyayuscheysya πο πeρeκachivaemοyu in τρubοπροvοdnοy seτi προduιsτu and οπρedelyayuτ yesτο • ποvρezdeniya, isποlzuya ρaznοsτ vρeyeni sρabaτyvaniya

30 daτchiκοv, sοglasnο izοbρeτeniyu, daτchiκi usτanavlivayuτ πο yenshey meρe in τρeχ κοnτροlnyχ τοchκaχ τρubοπροvοd- nοy seτi, ρaznesennyh dρug οτ dρuga on maκsimalκye ρassτοyaniya, izmeρennye vdοl τρubοπροvοdοv, πρi κοτο- ρyχ πρi zadannοm znachenii- minimalnοy uτechκi vοlna

35 sπada pressure, vοzniκshaya in κaκοy-libο κοnτροlnοy τοchκe, imeeτ in dvuχ blizhayshiχ κ it κοnτροlny ^χ τοch- • - 5 - due to the amplitude sufficient for the installation of the sensors installed in these two process units, the pressure is taken away from the supply unit.

5 bysτρee, οπρedelyayuτ πeρvuyu gρuππu vοzmοzhnyχ mesτ ποvρezhdeniya πο ρaznοsτi vρemen sρabaτyvaniya πeρvοgο and vτοροgο of uποmyanuτyχ above τρeχ daτchiκοv, οπρedelyayuτ vτορuyu gρushτu vοzmοzhnyχ mesτ ποvρezhdeniya πο ρaznοsτi vρemen sρabaτyvaniya πeρvοgο and τρeτegο of uπο-

Much of the property is divided by other persons • There is a chance of disassociating and discharging the equipment. of vοzmοzhnyχ mesτ ποvρezhdeniya οdnοy gρuππy with οdnim '^"

Χ5 of the possible places of residence, but - less so, one of the two other groups.

When the specified location is selected, the sensors are absolutely unnecessary for eliminating any disruption in any other way. divorced

20 mainstream network, moreover, the complication of the network is due to a slight insignificant quantity of sensors. Due to the fact that the number of sensors is minimal, the connection channels between the sensors and the processing devices of the processors are minimal.

25 daτchiκοv dannyχ ^'τaκzhe budeτ minimal τaκim οbρa- zοm, ποvyshaeτsya nadezhnοsτ and ποnizhaeτsya sτοimοsτ sisτemy, ρealizuyuschey πρedlagaemy sποsοb.

Β Further, the invention is explained in the form of a description of its implementation with reference to

30 proposed drawing

-А τ--κ е — — с с - • • • • • • • • • • • • • • • • • • •

At the same time, the schematic of the external main circuit is shown, in the short circuit, it is agreed that the dispute is agreed upon. - 6 -:

DESCRIPTION OF THE PRESENTATION OF THE INVENTION We ask you to ensure that you do not interfere with any other publicly available network. The public water network has been demolished.

5 direct lines of the pipes communicating at the nodes of the points, from the links on the drawing the node points I, 2, 3, are indicated. . . 19, 20, 21, used in the description to explain the essence of the process. Disposals in a shared network are shared by

10 registration is a drop in pressure occurring in the place of damage and

The product being processed is liquid, gas or gas / water, oil, gas, combustible gas and τ .π. /. For the registration, the pressure drop in the unit, the wave

15 nazyvaemyχ κοnτροlnyχ τοchκaχ τρubοπροvοdnοy seτi, usτanavlizayuτ daτchiκi, chuvsτviτelnye κ deysτviyu eτοy vοlny, naπρimeρ, daτchiκi davdeniya, usτanοvlen- nye κa sτenκaχ τρubοπροvοdοv and κοnτaκτiρuyuschie with πe- ρeκachizaemym προduκτοm or zibρatsiοnnye daτchiκi, INSTALLS

20 products manufactured on the walls and not contacting with the processed product. The user-friendly keys, which are shown on the drawing, are used according to the invention, as follows.

The values of the minimum

25 uτechκi in τρubοπροvοdaχ, κοτοροe dοlzhnο οbnaρuzhivaτ- Xia daτchiκami and ρastsenivaτsya κaκ ποvρezhdenie τρubοπροvοda, naπρimeρ, uτechκοy 10 οτ οbschegο ρas ^χ οda πeρeκachivaemοgο προduκτa πο τρubοπροvοda section. The first contact point is selected at any point

30 of the third-party network, cash-in, in junction 3.

Βτορuyu κοnτροlnuyu τοchκu, nalρimeρ, κοnτροdnuyu τοchκu 9 vybiρayuτ on τaκοm maκsimalnοm ρassτοyanii οτ κοnτροlnοy τοchκi 3 πρi κοτοροm zοlna sπada pressure Nia, vοzniκshaya in κοnτροlnοy τοchκe 3 iyeeτ πρi ποd-

35 τ 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 35 χ 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 35 _ 7 - Point 9 sensors. Obviously, the pressure drop is completely free of pressure and is subject to a loss of pressure between 3 and 9 times.

5 eti points. Obviously, it also needs to be chosen to the shortest of all possible paths of pressure dissipation between 3 and 2, 3–2, 3–2, 3–2, and 2–3 -10-9, 3-7-6-10-9 and ^' t.d. The shortest path

The pressure drop between the two paths is very good, but we divide the product by, for example, the method of the road. The shortest way to follow the wave between endpoints 3 and 9 is the path 3-2-6-10-9.

15 Τaκim οbρazοm, πρi vτbορe κοnτροlnοy τοchκi 9 usτanοvκi daτchiκοv us inτeρesueτ πeρvοe, samοe ρannee of vοzmοzhnyχ, sρabaτyzanie daτchiκa, usτanοv- lennοgο in κοnτροlnοy τοchκe 9, οτ vοznlκshey in κοnτροlnοy τοchκe 3 vοlny sπada pressure. Compliance

20 of the above conditions for the selection of a contact point of 9 this total pressure drop will not cause a malfunction of the installed unit in the case of Analogous systems

25 TOTAL PERFORMANCE RESPONSIBILITIES ARE RELATED TO THE CHOICE OF THE FOLLOWING OPERATING POINTS.

On the other hand, select end point 18 at the maximum distance of points 3 and 9, and at the same time the pressure drop is high, which occurs at the end

30 point 18, which has an approach to the contact points 3 and 9, sufficient for the operation of the installed supply points. At the same time, the condition for choosing the maximum distance for the shortest paths for following the pressure drop remains valid.

35 τρeτey κοnτροlnοy τοchκi 18 and τaκzhe for all ^χ ποsleduyuschiχ κοnτροdnyχ τοcheκ. Let, for example, κρаτ- - 8 - - the next path of the pressure drop from point 18 to point 3 lies on sections Ι8-ΙЗ-8-4-3, and from point 18 to point 9 - to sections Ι8-Ι7-Ι6-Ι -9.

The fourth end point 19 selects from

5 lοzhennym above sοοbρazheniyam and imennο on maκsimal- nyχ ρassτοyaniyaχ οτ κοnτροlnyχ τοcheκ 9 and 18 .. ποzvο- lyayuschiχ zaρegnsτρiροvaτ vοlnu sπada pressure vοzniκ- Shui in κοnτροlnοy τοchκo 19 daτchiκami, usτanοvlenny- E in κοnτροlnyχ τοchκaχ 9 and 18, Moreover, both in the case of the above cases, it is understood that the operation gives "clean waves, which have come to them in connection with the corresponding best practices."

In a similar fashion, select the following contacts- ^"" _. Local numbers 20 and 21. The general rule is that you choose κοκτ-

15 ροlnyχ τοcheκ, mοzhnο sκazaτ, chτο κazhdaya κοnτροlnaya τοchκa removed οτ blizhayshiχ κ it dvuχ κοnτροlnyχ τοcheκ on maκsimalnye ρassτοyaniya, πρi κοτορyχ vοlna sπada pressure vοzniκshaya in eτοy τοchκe, imeeτ in uκa- zannyχ dzuχ κοnτροlnyχ τοchκaχ amπliτudu, dοsτaτοchnuyu

20 ddya sρabaτyzaniya usτanοvlennyχ in eτiχ κοnτροlκyχ ^'τοch- κaχ daτchiκοv ₅ πρi. The conditions for a complete pressure drop are the shortest paths. The consumer end-user interface is not intended to be used, as it will not be accessible to the entire consumer network.

25 κοlichesτvο κοnτροlnyχ τοcheκ in κοτορyχ usτanοvleny daτchiκi, dοlzhnο byτ τaκοvο, "- chτο in κaκοm would mesτe ^{'τρubοπροvοdnοy} naπορnοy seτi no vοzniκlο ποvρezhdenie τρubοπροvοda, vοlna pressure sπada οτ eτοgο mesτa dοlzh- on dοyτi πο yenshey meρe dο τρeχ κοnτροlnyχ τοcheκ.

30 ^ and, therefore, if you observe the above-mentioned rules for choosing the touch points, the number of sensors used in the control system will be minimal.

It is proposed that, in some places, the outdoor mains is not connected to the main circuit.

35 entry into the river. From the place of the importation, a processed product with a known speed depending on - 9 - gidρavlichesκiχ χaρaκτeρisτiκ τρubοπροvοdοv and φizi- chesκiχ svοysτz πeρeκachivaemοgο προ-πuκτa, nachinaeτ ρasπροsτρanyaτsya vοlna pressure sπada, οτ κοτοροy sρabaτyvayuτ τρi daτchiκa, nalρimeρ, daτchiκi, usτanοv- lennye in κοnτροlnyχ τοchκaχ 3, 9 and 18, πρichem ρanshe vseχ sρabaττvaeτ, naπρimeρ cottage established in. Endpoint 3, Subjects - Subject. installed on the point 9 and the last of the results - the sensor installed in the contact point 18. According to the invention, the payment is received. Pusτ vρemya sρabaτyvaniya daτchiκa, usτanοvlennοgο in κοnτροlnοy τοchκe 3 ρavnο ^"έ- γ, vρemya sρabaτyvaniya daτchiκa, usτanοvleynοgο in κοnτροlnοy τοchκe 9 ρavnο ^ ^'and daτchiκa, usτanοvlennοgο in κοnτροlnοy τοchκe 18 ρavnο b - -.

Zaτem οπρedelyayuτ ρaznοsτ Α £ ~ vρemen sρabaτyvaniya daτchiκοz, usτanοvdennyχ in κοnτροlnyχ τοchκaχ 3 and 9, ρaznοsτ - ^~ ά vρeyen sρabaτyvaniya daτchiκοv, usτanοvlennyχ in κοnτροlnyχ τοchκaχ 9 and 18, and ρaznοsτ Δ ^~ ^ ³ Ρ ^Yemen sρabaτyvaniya daτchiκοv, usτanοvlenny ^χ at end points 3 and 18:

Δ ^' . = ^~ 4,

Α _ = 4 ÷ - - ÷ g.

Α ** =. - ^' +.

Next πο ποluchennym ρaznοsτyam ^ τ, ~ - 2 - ^0L of P ^e D ^& I ^ZΙ ^{yuτ T} P ^J gρuπly vοzmοzhny ^χ mesτ πο- vρezhdeniya, isχοdya of τοgο, chτο isκοmaya τοchκa where προizοshlο ποvρezhdenie τρubοπροvοda with οdnοy sτοροny, mοzheτ lezhaτ on lyubοm of uchasτκοv τρubοπροvοdnοy seτi τοchκami between 3 and 9, with dρugοy sτοροny - on dyubοm of uchasτκοv τρubοπροvοdnοy seτi mezdu τοchκami 9 and 18 or from lyubοm uchasτκοv τρubοπροvοdnοy seτi τοchκami between 3 and 18. Ηa κazhdοm I -τοm of vοzyοzhnyχ Ways to exit are subject to a drop in pressure between points 3 and 9 - 10 - - . • state X; From the middle of this path to the accessible site of damage to the site:

Χ _c = - '/ g V **, where V - ^{' the} velocity of the pressure is reduced by the pressure of the product in the given mains and I = 1.2. 3 - -. - by the way, quantity η. The interconnection paths between the paths 3 and 9 depend on the ^* connection circuitry between these paths. Then distribute the distribution Ο. Each time you want to exit from a third point 3 or 9, for example, a third point to the outside: ϊ5 α. = - - * ι where 0, ^g - the intensity of the I-path.

Since it is not known, as it is known that there are no other ways to connect any other part 3 N 9, there are some cases of inconvenience. woz-

There are 20 possible places to wait for the first group, for example, just aγ on paths 3-7-6-10-9, just a way on paths 3-2-6-10-9, a hell on paths 3-2-1-5- 9 and τ.

In the same way, it is found that there is a second load of possible injuries, namely, at the end of the first

25 of the possible routes of passage are free from the pressure drop between points 9 and 18;

30 ^{th ~ '} Ζ ^ where = I, 2, 3 ... t _. By and large, the possible paths between paths 9 and 18 depend on the configuration of the path network between these paths. Зο ~ II -

Next, share the location '&: - for each route, one of points 9 or 18, for example, point 9, is possible:

5 2 - where - ^ Ι - the length of the route is ..

Τaκ κaκ neizvesτnο on κaκοm imennο of πuτey, sοedinyayuschiχ πο τρubοπροvοdam κοnτροlκye τοchκi 9 and 18, naχοdiτsya mesτο ποvρezhdeniya, το ποluchayuτ t 10 vοzmοzhnyχ mesτ ποvρezdeniya vτοροy gρuππy, naπρimeρ, τοchκu - • at πuτi 9-Ι0-6-7-8- ΙЗ-Ι8, point 6. ^

9-Ι0-Ι5-Ι6-Ι7-Ι8, that is ^ ^{on the} way 9-Ι0-ΙΙ-Ι2-ΙЗ-Ι8 and τ. E. •

Next, there is a group of possible sites at a distance of 15 barriers, and, as a result, a short circuit from the open circuit of the pressure transducer

3rd 18 * ^• Stay 5. “To be sure * ^• One way to the other side of the disaster, using the location:

where κ = I, 2, 3-.

The path between the points 3 and 18 depends on the connection of the main circuit to these points.

25. kami.

After this, you share the location with each path to one of the points 3 or 18, for example, to the point 3, in the meantime:

30 g _κ ~ - - - - ^ζ 7. ϊ ^> where 5 is the length of the path.

Τaκ κaκ neizvesτnο on κaκοm imennο of πuτey, sο- edinyayuschiχ πο τρubοπροvοdam κοnτροlnye τοchκi 3 and 18, naχοdiτsya mesτο ποvρezhdeniya, το ποluchayuτ (. ^• 35 values vοzmοzhnyχ mesτ ποvρezdeniya τρeττey gρuππy, naπρimeρ, τοchκu Su on πuτi 3-4-8- 13-18, the track from 3 to the path 3-7-Ι2-Ι7-Ι8, the track from ₃ to the path 3-7-8-ΙЗ-Ι8 and τ - 12 - :

Deysτviτelnοe mesτο ποvρezhdeniya with dοπusτimοy ποgρeshnοsτyu naχοdyaτ πο sοvπadeκiyu οdnοgο of vοzmοzh- us ^χ .mesτ lοvρezhdeniya οdnοy gρuππy with οdnim of vοzmοzh- us ^χ mesτ ποvρezhdeniya ^'dρugοy gρuππy -or dρugiχ gρuππ.

5 In our case, it is approximate that the points a-g and d are similar, so that there is a place for the return of the pipe lying on the other hand, which is in the absence of a trace. Β Ideally, the length of the path will be equal to zero / points a-g and ^ γ will coincide /, -,

10 and in practical implementation, the method achieves a coincidence of the points a-d and ^ τ in the case of a long cut. to Zm. *

It is, in fact, a fact of disagreement between the first and second groups, or the first and third groups. ^' troupe-

15 to her group, or to the second and third group, or all. The group depends on the location of the occupancy and the on-site points are ^not connected to the device. If there was a place of expectation

20 was located, for example, near point 12, there would be a place where there is a coincidence point, τ. e. οdnοy of τοcheκ gρuπly "and ^m οdnοy of -τοcheκ gρuπly" β "and e οdnοy τοcheκ gρuππy of" s. "Deysτviτelnο in case eτοm vοlna sπada pressure Nia οτ τοchκi 12 would ρasπροsτρanyalas dο κοnτροlnοy

25 points 3 at the path 12-7-3, at the end point 18 - at the points 12-13-18 and at the end point 9 - at the same time 2-ΙΙ-Ι0-9, 9 and 18,: 3 and 18 will make the sum-of the paths of movement are free from point 12 to two contact points,

30 • named paths Ι2-ΙΙ-Ι0-9 or 12-7-3-, Ι2-ΙΙ-Ι0-9 plus 12-13-18 and 12-7-3 plus 12-13-18 are respectively. The intentional use of the invention may be advantageously used in the commercial utility for the control of water and telephone networks.

35 supply of the cities and in the chemical industry for the purpose of cooperating with the larger systems

0 »1Ρ1 - thirteen - : _ . garlic illnesses. The invention is ^“ advantageously distinguished by the known means of the analogous purpose of greater reliability, simple implementation and a favorable low system.

Claims

ΟΡΜΟΡΜΟΡΜΑΑ ΑΟΟΡΕΙΕΗ ^* _. The method of locating a place in a public external network, which is included in the installation of a public network on the territory of a common external network

5 chiκi, chuvsτviτelnye κ deysτviyu vοlny sπada pressure Nia, vοzniκayuschey in mesτe ποvρezhdeniya and ρasπροsτρaκya- yuscheysya πο πeρeκachivaemοyu in τρubοπροvοdnοy ce ^'τi προ- duκτu and οπρedelyayuτ mesτο ποvρezhdeniya, isποlzuya ρaz- nοsτ vρemen sρabaτyvaniya daτchiκοv, ο τ L and h and χθ Yu-u and d with I τem, chτο daτchiκi usτanavlivayuτ πο menyπey meρe in τρeχ κοnτροlnyχ τοchκaχ τρubοπροvοdnοy seτi 'ρaznesennyχ dρug οτ dρuga on maκsimalnye ρassτοyaniya, izmeρennye vdοl τρubοπροvοdοv, πρi κοτορyχ πρi za- ^"daκnοm value minimalnοy uτechκi vοlna sπada giving -

15 leκiya, zοzniκshaya in κaκοy -lyabο κοnτροlnοy τοchκe, imeeτ of dzuχ blizhayshiχ κ yey κοnτροlnyχ τοchκaχ ayπ- whether ^ Hood, dοsτaτοshuyu for sρabaτyvaniya usτanοvleκnyχ in eτiχ dvuχ τοchκaχ daτchiκοv, ρegisτρiρuyuτ vρemena sρabaτyvaniya τρeχ blizhayshiχ κ mesτu ποvρezdeniya daτchi-

20 κοz, dο κοτορyχ vοlna pressure sπada dοydeτ bysτρee, οπρedelyayuτ πeοvuyu gρuππu vοzmοzhnyχ mesτ ποvρezhdeniya πο ρaznοsτi aρemen sρabaτyvaniya πeρvοgο and vτοροgο of ulοmyanuτyχ above τρeχ daτchiκοv, οπρedelyayuτ vτορuyu gρuππu vοzyοzhnyχ mesτ ποvρezhdeniya πο ρaznοsτi vρemen sρa-

25 baτyvaniya leρvοgο and τρeτegο of ulοmyanuτyχ daτchiκοv above, οπρedelyayuτ τρeτyu gρuππu vοzmοzhnyχ mesτ ποvρezhdeniya πο ρaznοsτi vρemen sρabaτyvaniya vτοροgο and τρeτegο of uποmyanuτyχ daτchiκοv above, n οπρedelyayuτ mesτο ποvρezhdeniya πο sοvπadeniyu οdnοgο of vοzmοzhny ^χ mesτ

30 equipments of one unit with one of the possible places of injury, but at least one of the two other units.

35