CN109340583A - Heating network leakage monitoring system and method - Google Patents

Heating network leakage monitoring system and method Download PDF

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Publication number
CN109340583A
CN109340583A CN201811406083.9A CN201811406083A CN109340583A CN 109340583 A CN109340583 A CN 109340583A CN 201811406083 A CN201811406083 A CN 201811406083A CN 109340583 A CN109340583 A CN 109340583A
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China
Prior art keywords
pipeline
pressure
data
leakage
pipe
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CN201811406083.9A
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Chinese (zh)
Inventor
傅远雄
尹立新
苏周
师诚
赵永刚
时国华
秦志明
严立
何玉善
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Baoding Huawei Power Electronics Technology Development Co Ltd
System In Beijing Jing Can Following Combustion Gas Thermal Power Co Ltd
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Baoding Huawei Power Electronics Technology Development Co Ltd
System In Beijing Jing Can Following Combustion Gas Thermal Power Co Ltd
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Application filed by Baoding Huawei Power Electronics Technology Development Co Ltd, System In Beijing Jing Can Following Combustion Gas Thermal Power Co Ltd filed Critical Baoding Huawei Power Electronics Technology Development Co Ltd
Priority to CN201811406083.9A priority Critical patent/CN109340583A/en
Publication of CN109340583A publication Critical patent/CN109340583A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/02Preventing, monitoring, or locating loss

Abstract

The present invention provides a kind of heating network leakage monitoring system and methods, wherein the system includes: SCADA server, the pressure data and data on flows of each measuring point on acquiring heat supply pipe network;Generalized information system, the pipeline geography information and pipe parameter data of each measuring point on acquiring heat supply pipe network;Pipeline section judgment module is leaked, for monitoring the operating status of heating network pipeline section according to pressure data and pipeline geography information, when leaking, determines leakage pipeline section;Leak source locating module, for according to pipe parameter data, pressure data and data on flows, determining the leak position on leakage pipeline section when leaking.Above-mentioned technical proposal is not necessarily to the equipment such as additional pressure and flow sensor on heat supply network, the data that setting equipment detects when only needing that built heat supply network is combined to put into operation, heating network leakage accident spot and leakage pipeline section can be found in time, and it is accurately located the leak position of leakage pipeline section, there is directive significance for processing heat supply network leakage accident.

Description

Heating network leakage monitoring system and method
Technical field
The present invention relates to heating network operation leakage monitoring technical field, in particular to a kind of heating network leakage monitoring system and Method.
Background technique
In recent years, with the rapid development of the national economy, country is for environmental protection and energy saving takes a system Column promotion measure, which also promotes the development of China's central heating cause.The development of central heating cause not only shows universal The raising of rate is also manifested by the expansion of central heating system scale.Because heat supply network is the weak link of heating system reliability, with The increase of heat supply network scale and the growth of lifespan, due to pipeline and component material, system of laying, environment, construction method and The influence of the factors of management, various regions damage accident of heat-supply network constantly occur, wherein most commonly seen with leakage failure.
Traditional mode is found mainly by heat user, or when leakage extension, system is caused big operation fluctuation occur. Therefore accident is found in time, and determines that place where the accident occurred is very important as far as possible.Heat supply network leakage failure seriously hampers The economy and safety of heating network operation improve the heating network efficiency of management in order to ensure heating network safe and stable operation, real Existing heating network modern management, carrying out real-time monitoring to heating network has been current development trend.Currently, heat pipe monitor system skill Art is broadly divided into direct method and indirect method, and direct method is that sensor is mounted on to the operating status that monitoring heat supply network is removed inside pipeline, Indirect method mainly according to pressure data difference between heat supply network confession, return water, draws up heating network operation state using computer mould.
Existing to have the following problems about heat supply network leakage monitoring: (1) existing leakage monitoring system needs to add equipment, right Built heat supply network is difficult to realize;(2) existing most of heat supply network day-to-day operations rely primarily on manual inspection, and reliability is low;(3) existing Some heat supply network leakage monitorings can not quickly determine place where the accident occurred, and precise positioning pipeline section leak position difficult to realize.
In view of the above-mentioned problems, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of heating network leakage monitoring systems, to improve heating network leakage monitoring Efficiency and precision, the system include:
SCADA server is connect with the pressure sensor of measuring point each on heating network and flow sensor, is supplied for acquiring The pressure data and data on flows of each measuring point on hot pipe network;
Generalized information system is connect with the position sensor of measuring point each on heating network, each measuring point on acquiring heat supply pipe network Pipeline geography information and pipe parameter data;
Pipeline section judgment module is leaked, is connect with the SCADA server and generalized information system, for according to the pressure data With pipeline geography information, the operating status of heating network pipeline section is monitored, when leaking, determines leakage pipeline section;
Leak source locating module is connect with the leakage pipeline section judgment module, for when leaking, according to the pipeline Supplemental characteristic, pressure data and data on flows determine the leak position on the leakage pipeline section.
The embodiment of the invention also provides a kind of heating network leakage monitoring methods, to improve heating network leakage monitoring Efficiency and precision, this method comprises:
The pressure data and data on flows of each measuring point on SCADA collection of server heating network;
The pipeline geography information and pipe parameter data of each measuring point on generalized information system acquiring heat supply pipe network;
Pipeline section judgment module is leaked according to the pressure data and pipeline geography information, monitors the operation of heating network pipeline section State determines leakage pipeline section when leaking;
Leak source locating module, according to the pipe parameter data, pressure data and data on flows, is determined when leaking Leak position on the leakage pipeline section.
The embodiment of the invention also provides a kind of computer equipments, including memory, processor and storage are on a memory And the computer program that can be run on a processor, the processor execute the heating network leakage monitoring method.
The embodiment of the invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage There is the computer program for executing heating network leakage monitoring method.
The number pressure that technical solution provided in an embodiment of the present invention passes through each measuring point on SCADA collection of server heating network According to and data on flows;Pass through the pipeline geography information and pipe parameter data of each measuring point on generalized information system acquiring heat supply pipe network;Pass through Pipeline section judgment module is leaked according to pressure data and pipeline geography information, the operating status of heating network pipeline section is monitored, is occurring When leakage, leakage pipeline section is determined;Leak source locating module, for when leaking, according to pipe parameter data, pressure data and Data on flows determines the leak position on leakage pipeline section, realizes without additional pressure and flow sensor on heat supply network Etc. equipment, it is only necessary to when putting into operation in conjunction with built heat supply network be arranged equipment detect data, it will be able to find heating network in time and let out Place where the accident occurred and leakage pipeline section are leaked, and is accurately located the leak position of leakage pipeline section, reduces unnecessary energy waste, mentions The high efficiency and precision of heating network leakage monitoring, saves human cost, has guidance meaning for processing heat supply network leakage accident Justice, to promote heating network operation optimization to be of great significance.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not Constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of heating network leakage monitoring system in the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of heating network leakage monitoring system in another embodiment of the present invention;
Fig. 3 is to determine in the embodiment of the present invention for the actual pressure data principles schematic diagram at water conduit tube node;
Fig. 4 is the actual pressure data principles schematic diagram determined at return water main pipe node in the embodiment of the present invention;
Fig. 5 is not leak pipeline section and its schematic equivalent circuit in the embodiment of the present invention;
Fig. 6 is that pipeline section and its schematic equivalent circuit are leaked in the embodiment of the present invention;
Fig. 7 is the flow diagram of heating network leakage monitoring method in the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously It is not as a limitation of the invention.
Before introducing the embodiment of the present invention, noun of the present invention is introduced first as follows.
1, head: mechanical energy possessed by the unit mass liquid indicated with liquid-column height.
2, head loss: the mechanical power loss of liquid unit mass liquid in flow process.
3, node: the junction of two sections of pipeline sections.
4, the acquisition of SCADA (Supervisory Control And Data Acquisition) system, i.e. data and prison Depending on control system.
5, generalized information system, that is, GIS-Geographic Information System (GIS, geographic information system).
The problem of technical solution provided in an embodiment of the present invention is for existing heat supply network leakage monitoring, proposes one kind Heating network leaks real-time monitoring system and method, can judge to leak pipeline section and leak effectively in real time to leak on pipeline section The specific location of point, avoids the blindness of manual inspection, to promote heating network operation optimization to be of great significance.Below to the confession Hot pipe network leakage monitoring scheme describes in detail as follows.
Fig. 1 is the structural schematic diagram of heating network leakage monitoring system in the embodiment of the present invention, as shown in Figure 1, the system Include:
SCADA server 01 is connect, for acquiring with the pressure sensor of measuring point each on heating network and flow sensor The pressure data and data on flows of each measuring point on heating network;
Generalized information system 02 is connect with the position sensor of measuring point each on heating network, for each measuring point on acquiring heat supply pipe network Pipeline geography information and pipe parameter data;
Pipeline section judgment module 05 is leaked, is connect with the SCADA server and generalized information system, for according to the number pressure According to pipeline geography information, monitor heating network pipeline section operating status, when leaking, determine leak pipeline section;
Leak source locating module 06 is connect with the leakage pipeline section judgment module, for when leaking, according to the pipe Road supplemental characteristic, pressure data and data on flows determine the leak position on the leakage pipeline section.
The number pressure that technical solution provided in an embodiment of the present invention passes through each measuring point on SCADA collection of server heating network According to and data on flows;Pass through the pipeline geography information and pipe parameter data of each measuring point on generalized information system acquiring heat supply pipe network;Pass through Pipeline section judgment module is leaked according to pressure data and pipeline geography information, the operating status of heating network pipeline section is monitored, is occurring When leakage, leakage pipeline section is determined;Leak source locating module, for when leaking, according to pipe parameter data, pressure data and Data on flows determines the leak position on leakage pipeline section, realizes without additional pressure and flow sensor on heat supply network Etc. equipment, it is only necessary to when putting into operation in conjunction with built heat supply network be arranged equipment detect data, it will be able to find heating network in time and let out Place where the accident occurred and leakage pipeline section are leaked, and is accurately located the leak position of leakage pipeline section, improves heating network leakage monitoring Efficiency and precision, save human cost, for processing heat supply network leakage accident have directive significance.
It describes in detail below to the structure of the heating network leakage monitoring system as follows.
Inventor considers: SCADA monitoring server to pressure data and data on flows usually there is noise, after influencing The accurate judgement of continuous leakage pipeline section and leakage point, therefore propose following technical solution:
In one embodiment, as shown in Fig. 2, above-mentioned heating network leakage monitoring system can also include:
Data processing module 03, input terminal are connect with the SCADA server and generalized information system, output end be mentioned below Pressure-measuring-point head conversion module connection, for handling the noise data in the pressure data and data on flows;
Following pressure-measuring-point head conversion modules are specifically used for the process near the primary net inlet and outlet of each thermal substation Treated that pressure data is converted into the actual pressure data on heating network at pipeline section node for noise data.
When it is implemented, data processing module handles the noise data in pressure data and data on flows, it is subsequent Pressure-measuring-point head conversion module can obtain more true according to the pressure data and data on flows after noise processed Actual pressure data at node, and then further increase the precision of heating network leakage monitoring.
When it is implemented, data processing module can use branch mailbox method smooth treatment noise data.
When it is implemented, above-mentioned pressure sensor can be stream with real-time perception heating network pressure, above-mentioned flow sensor Meter, the flowmeter can be with real-time perception heat supply network flows.Above-mentioned Pressure Sensor Precision grade is not less than 0.075%, can be with cloth It sets in each pipeline section node of backbone, water circulating pump inlet and outlet (heat source) and the primary net import and export of each thermal substation, above-mentioned flowmeter can To be mounted on water circulating pump import and export, make-up pump outlet and each thermal substation entrance.
Inventor is additionally contemplates that: (such as Fig. 3 and Fig. 4 when pressure sensor is arranged in the primary net import and export of each thermal substation Shown in pressure tap), that is, when the pressure sensor that is arranged when being put into operation using built heat supply network obtains pressure data, from figure As can be seen that pressure data at this moment can not truly represent the node pressure of corresponding pipeline section.In view of this technical problem, The following technical solutions are proposed by inventor:
In one embodiment, as shown in Fig. 2, above-mentioned heating network leakage monitoring system can also include:
Pressure-measuring-point head converts module 04, and input terminal connect with the SCADA server and generalized information system, output end and The leakage pipeline section judgment module connection, for according to the pressure data, data on flows, pipeline geography information and pipe parameter Pressure data near the primary net inlet and outlet of each thermal substation is converted into corresponding on heating network at pipeline section node by data Actual pressure data;
The leakage pipeline section judgment module is specifically used for according to the actual pressure data and pipeline geography information, and monitoring supplies The operating status of hot pipe network pipeline section determines leakage pipeline section when leaking;
The leak source locating module is specifically used for when leaking, according to the pipe parameter data, actual pressure number According to and data on flows, determine it is described leakage pipeline section on leak position.
When it is implemented, as shown in Figure 3 and Figure 4, using pressure-measuring-point head conversion module 04, it is right on heating network to obtain The actual pressure data at pipeline section node are answered, the pressure information of each node, the judgement of later leakage pipeline section are more truly reflected out Module and leak source locating module can more accurately determine leakage pipeline section and leak letting out on pipeline section according to the actual pressure data It leaks position (leakage point).
It is described below pressure-measuring-point head conversion module 04 is how to be converted to obtain shown true pressure (reality Pressure data).
In one embodiment, as shown in Figure 3 and Figure 4, the pressure-measuring-point head conversion module is specifically used for:
It calculates according to following formula for the actual pressure data at water conduit tube node:
Wherein, Pg1For for the actual pressure data at water conduit tube node;P′g1For water supply pipeline section import near nodal pressure The pressure value of measuring point;ρ is hot water density in pipeline;G is acceleration of gravity;ΔZg1For pressure tap near water supply pipeline section starting point and rise The difference of level head between point node;vg1For the flow velocity at water supply pipeline section starting point node;v'g1It is attached that node is played for water supply pipeline section Flow velocity at nearly pressure-measuring-point.
When it is implemented, as shown in figure 3, establish Bernoulli equation to node 1 and pressure tap for for water conduit tube, it can It obtains above-mentioned formula (1), in formula: P 'g1For the pressure value of water supply pipeline section import near nodal pressure-measuring-point, as measuring point pressure, directly It connects and corresponding pressure sensor data is acquired by SCADA server (SCADA system);ΔZg1Pressure is nearby surveyed for water supply pipeline section starting point The difference of level head between point and starting point node is subtracted each other by 1 sum aggregate pressure tap location information of generalized information system acquisition node The level head obtained between two o'clock is poor;v'g1The flow velocity near nodal pressure-measuring-point is played for water supply pipeline section, by this for water conduit tube The sum of heat exchange station flow of all connections later (SCADA system acquisition then be added) and this for water conduit tube caliber, (generalized information system is obtained Take) it determines.As described above, these parameters can all be obtained by SCADA system and generalized information system, utilize above formula, so that it may determine Pg1
The actual pressure data at return water main pipe node are calculated according to following formula:
Ph1For the actual pressure data at return water main pipe node;P′h1For return water pipeline section import near nodal pressure-measuring-point Pressure value;ρ is hot water density in pipeline;G is acceleration of gravity;ΔZh1For pressure tap and starting point node near return water pipeline section starting point Between level head difference;vh1For the flow velocity at return water pipeline section starting point node;v'h1Near nodal pressure is played for return water pipeline section Flow velocity at measuring point.
When it is implemented, as shown in figure 4, establish Bernoulli equation to node 1 and pressure tap by taking return water main pipe as an example, it can ?
Ph1Determination refer to P aboveg1Determination method, it is similar.
When it is implemented, in addition to according to above-mentioned formula (1) and (2), near the primary net inlet and outlet of each thermal substation Pressure data is converted into corresponding to the actual pressure data at pipeline section node on heating network, can also with piezometric head △ H come Embody the conversion of pressure data, such as formula as described below (3) and (4).
Wherein, Δ Hg1-2For the head loss of water supplying pipe import or export;P′g1For water supply pipeline section import near nodal pressure The pressure value of measuring point;P′g2For the pressure value of pressure-measuring-point near water supply pipeline section Egress node;ρ is hot water density in pipeline;G is Acceleration of gravity;Zg1The level head of node is played for water supply pipeline section;Zg2Stop the level head of node for water supply pipeline section;ΔZg1For The difference of level head near water supply pipeline section starting point between pressure tap and starting point node;ΔZg2For water supply pipeline section stop near nodal The difference of level head between pressure tap and stop;v'g1The flow velocity near nodal pressure-measuring-point is played for water supply pipeline section;v'g2To supply Water pipe section stops the flow velocity near nodal pressure-measuring-point;
Wherein, Δ Hh1-2For the head loss of return pipe import or export;P′h1For return water pipeline section import near nodal pressure The pressure value of measuring point;P′h2For the pressure value of pressure-measuring-point near return water pipeline section Egress node;ρ is hot water density in pipeline;G is Acceleration of gravity;Zh1The level head of node is played for return water pipeline section;Zh2Stop the level head of node for return water pipeline section;ΔZh1For The difference of level head near return water pipeline section starting point between pressure tap and starting point node;ΔZh2For return water pipeline section stop near nodal The difference of level head between pressure tap and stop;v'h1The flow velocity near nodal pressure-measuring-point is played for return water pipeline section;v'h2To return Water pipe section stops the flow velocity near nodal pressure-measuring-point.
When it is implemented, above-mentioned flow speed data can be and be measured by flow sensor.Section is played in the embodiment of the present invention Point also refers to the first end of a certain pipeline section, and only node can be the second end of the pipeline section.
In one embodiment, the leakage pipeline section judgment module specifically can be used for:
According to the pressure data, the difference of the first pressure between current pipe section and previous pipeline section is calculated, and works as front tube The difference of section and the second pressure of latter pipeline section determines the operation of current pipe section according to the difference of the difference of first pressure and second pressure State;
When the operating status for determining current pipe section is to leak, according to pipeline geography information, current pipe section is determined Geographical location.
When it is implemented, leakage pipeline section judgment module can analogous circuit Systems Theory knowledge, according to the pipe before leakage point Road pressure difference increases, and the pipeline pressure difference decline after leakage point judges water supply, return water pipeline section differential pressure curve when leakage occurs, compares Leakage front and back is supplied water, return water pipeline section pressure difference changes size, judges to leak pipeline section, by improving determining blow-by tube using the program The precision of section.
When it is implemented, the previous pipeline section and latter pipeline section of above-mentioned current pipe section also refer to it is adjacent with current pipe section Two sections of pipeline sections.The flow direction of above-mentioned water supply, return water pipeline section differential pressure curve along fluid in main pipe, by all pipes of main pipe The curve that section beginning (starting point) pressure and starting point end (stop) pressure difference are made.
In one embodiment, as shown in Figure 5 and Figure 6, the leak source locating module is specifically used for true according to following formula Leak position on the fixed leakage pipeline section:
Wherein,
Wherein: LLFor leak position;D is pipeline diameter;PinFor pipeline section inlet pressure;PoutFor pipeline section outlet pressure;PrfFor Reference pressure;L is pipe range;ZinFor pipeline section entry position head;ZoutFor pipeline section outlet port head;K is slip;It is flat Equal coefficient of frictional resistance;ρ is hot water density in pipeline;G is acceleration of gravity;RrfFor the resistance of reference pressure lower tube section;V is pipe Inner fluid speed.
When it is implemented, when pressure sensor is arranged in the primary net import and export of each thermal substation, above-mentioned PinAnd PoutIt is According to the actual pressure data that above-mentioned pressure-measuring-point head conversion module obtains, for example, see above-mentioned formula (1) and formula (2).
Below in conjunction with attached drawing 5 and Fig. 6, son illustrates how to carry out leak source positioning as an example.
Theoretical according to equivalent circuit and circuit system, Rrf may be expressed as:
The following are illustrate how to determine leak source:
1) leakage pipeline section judgment module determines that leakage pipeline section, such as pipeline section A leak.
2) the average friction resistance coefficient of leakage pipeline section is determined,Since pipeline section leaks front and back, caliber, inside pipe wall are coarse All there is no variations for the intrinsic physical properties of pipelines such as degree, and therefore, before and after visual pipeline section leakage, coefficient of frictional resistance is unchanged. Average friction resistance coefficientIt can be calculated by following formula:
Wherein,Average pressure of the starting point pressure within certain time before being leaked for leakage pipeline section;To leak pipeline section Average pressure of the dead-end pressure within certain time before leaking;Before being leaked for leakage pipeline section in certain section of time inner tube hot water it is flat Equal flow velocity.
For example, passing through SCADA system (SCADA server) and pressure-measuring-point head after judging that pipeline section A is leaked Conversion module determines leak before pipeline section A rising, dead-end pressure data and passing through in 10 minutes (period can take longer) SCADA system obtains the data on flows of all thermal substations after pipeline section A in leakage first 10 minutes, and the arithmetic for acquiring starting point pressure is flat Mean valueThe arithmetic mean of instantaneous value of dead-end pressureWith the arithmetic mean of instantaneous value of flow rate of hot water in pipeThen it is obtained by generalized information system Pipeline section A pipe parameter (caliber D, pipe range L, the start position head Z takeninWith dead-centre position head Zout), it is determined and is managed using above formula Section A's
3) circulating-pump outlet flow and each thermal substation flow after pipeline section A leakage are obtained by SCADA system, is asked by following formula Slip.
4) determine that pipeline section A rises after leaking, dead-end pressure P by SCADA system and pressure-measuring-point head conversion modulein、 Pout, the data on flows of all thermal substations calculates and determines pipeline section A outlet hot water after pipeline section A after being leaked by SCADA system Flow velocity vout, reference pressure PrfIt is 0, R is asked by following formularf
5) 2) following formula (above-mentioned formula (5)) are substituted into the parameter determined in 4) for above-mentioned, position leak source:
In addition, in fig. 5 and fig., RLIt represents: the equivalent resistance at after circuit of pipeline section, i.e. pipeline section resistance;UinIt represents: pipe The equivalent entrance potential at after circuit of section, that is, correspond to pipeline section entrance hydrostatic pressure;UoutRepresent: pipeline section it is equivalent at circuit after Exit potential corresponds to pipeline section outlet stream body static pressure;G is represented: liquid mass flow in pipeline section;GLIt represents: leakage point leakage Mass flow;RL1It represents: leak source front tube section resistance after pipeline section leakage;RL2It represents: pipeline section resistance after leak source after pipeline section leakage;RLL Represent: leak source is equivalent to a pipe path, corresponding pipeline section resistance of equal value after leakage;UrfRepresent: pipeline section is equivalent at circuit Reference voltage afterwards, i.e. reference pressure ULRepresent: leakage pipeline section is equivalent at voltage at leakage point after circuit, i.e. leak source Hydrostatic Pressure;GinIt represents: pipeline section inlet liquid mass flow;GoutIt represents: pipeline section exit liquid mass flow.
When it is implemented, collecting the pressure and data on flows and the long-range visit of offer that each measuring point acquires using SCADA server It asks interface, data is uploaded to by data processing module by access interface, it is ensured that the stability of data transmission ensure that pressure The reliability and accuracy of data.Other types of collection of server pressure and data on flows can certainly be utilized.
When it is implemented, data transmission system is municipal LAN between each EM equipment module in the embodiment of the present invention, with Optical fiber is transmission channel, is based on ICP/IP protocol.
In addition, heating network leakage monitoring system provided in an embodiment of the present invention can also include a database, the data Library is used to store the data information of heating network leakage, the diagnostic analysis for the later period.
Based on the same inventive concept, a kind of heating network leakage monitoring method is additionally provided in the embodiment of the present invention, it is as follows The embodiment in face.The principle and above-mentioned heating network leakage monitoring system phase solved the problems, such as due to heating network leakage monitoring method Seemingly, therefore applied to the implementation of heating network leakage monitoring method the reality of above-mentioned heating network leakage monitoring system can be referred to It applies, overlaps will not be repeated.Used below, the software of predetermined function may be implemented in term " module " or " module " And/or the combination of hardware.Although device described in following embodiment is preferably realized with software, hardware or soft The realization of the combination of part and hardware is also that may and be contemplated.
Fig. 7 is the flow diagram of heating network leakage monitoring method in the embodiment of the present invention, as shown in fig. 7, this method Include the following steps:
The pressure data and data on flows of each measuring point on step 101:SCADA collection of server heating network;
The pipeline geography information and pipe parameter data of each measuring point on step 102:GIS system acquisition heating network;
Step 103: leakage pipeline section judgment module monitors heating tube network management according to the pressure data and pipeline geography information The operating status of section determines leakage pipeline section when leaking;
Step 104: leak source locating module is when leaking, according to the pipe parameter data, pressure data and flow Data determine the leak position on the leakage pipeline section.
In one embodiment, above-mentioned heating network leakage monitoring method can also include:
Pressure-measuring-point head converts module according to the pressure data, data on flows, pipeline geography information and pipe parameter Pressure data near the primary net inlet and outlet of each thermal substation is converted into corresponding on heating network at pipeline section node by data Actual pressure data;
Pipeline section judgment module is leaked according to the pressure data and pipeline geography information, monitors the operation of heating network pipeline section State determines leakage pipeline section when leaking, and may include: leakage pipeline section judgment module according to the actual pressure data With pipeline geography information, the operating status of heating network pipeline section is monitored, when leaking, determines leakage pipeline section;
Leak source locating module, according to the pipe parameter data, pressure data and data on flows, is determined when leaking Leak position on the leakage pipeline section may include: leak source locating module when leaking, according to the pipe parameter number According to, actual pressure data and data on flows, the leak position on the leakage pipeline section is determined.
In one embodiment, pressure-measuring-point head conversion module is geographical according to the pressure data, data on flows, pipeline Information and pipe parameter data, it is right on heating network that the pressure data near the primary net inlet and outlet of each thermal substation is converted into The actual pressure data at pipeline section node are answered, may include:
It calculates according to following formula for the actual pressure data at water conduit tube node:
Wherein, Pg1For for the actual pressure data at water conduit tube node;P′g1For water supply pipeline section import near nodal pressure The pressure value of measuring point;ρ is hot water density in pipeline;G is acceleration of gravity;ΔZg1For pressure tap near water supply pipeline section starting point and rise The difference of level head between point node;vg1For the flow velocity at water supply pipeline section starting point node;v'g1It is attached that node is played for water supply pipeline section Flow velocity at nearly pressure-measuring-point;
The actual pressure data at return water main pipe node are calculated according to following formula:
Ph1For the actual pressure data at return water main pipe node;P′h1For return water pipeline section import near nodal pressure-measuring-point Pressure value;ρ is hot water density in pipeline;G is acceleration of gravity;ΔZh1For pressure tap and starting point node near return water pipeline section starting point Between level head difference;vh1For the flow velocity at return water pipeline section starting point node;v'h1Near nodal pressure is played for return water pipeline section Flow velocity at measuring point.
In one embodiment, leakage pipeline section judgment module is supplied according to the pressure data and pipeline geography information, monitoring The operating status of hot pipe network pipeline section determines leakage pipeline section, may include: when leaking
According to the pressure data, the difference of the first pressure between current pipe section and previous pipeline section is calculated, and works as front tube The difference of section and the second pressure of latter pipeline section determines the operation of current pipe section according to the difference of the difference of first pressure and second pressure State;
When the operating status for determining current pipe section is to leak, according to pipeline geography information, current pipe section is determined Geographical location.
In one embodiment, leak source locating module is when leaking, according to the pipe parameter data, pressure data And data on flows, it determines the leak position on the leakage pipeline section, may include: to determine the leakage pipeline section according to following formula On leak position:
Wherein,
Wherein: LLFor leak position;D is pipeline diameter;PinFor pipeline section inlet pressure;PoutFor pipeline section outlet pressure;PrfFor Reference pressure;L is pipe range;ZinFor pipeline section entry position head;ZoutFor pipeline section outlet port head;K is slip;It is flat Equal coefficient of frictional resistance;ρ is hot water density in pipeline;G is acceleration of gravity;RrfFor the resistance of reference pressure lower tube section;V is pipe Inner fluid speed.
In one embodiment, above-mentioned heating network leakage monitoring method can also include:
Data processing module handles the noise data in the pressure data and data on flows;
Pressure data near the primary net inlet and outlet of each thermal substation is converted into supplying by pressure-measuring-point head conversion module Actual pressure data on hot pipe network at pipeline section node may include:
Pressure-measuring-point head conversion module will be handled near the primary net inlet and outlet of each thermal substation by noise data Pressure data afterwards is converted into the actual pressure data on heating network at pipeline section node.
Heating network leakage method of real-time may include steps of in another embodiment of the present invention:
A. pipeline real-time pressure data and data on flows are uploaded to respectively by SCADA by pressure sensor and flowmeter Server, generalized information system synchronous acquisition pipe network geography and pipe parameter data;
B. collected data are transferred to by data processing module by SCADA server and generalized information system;
C. after being handled by data processing module, pressure-measuring-point head conversion module calculates pipeline pressure data, Obtain pipeline true pressure value;
D. after passing through pressure-measuring-point head conversion module, leakage pipeline section judgment module reception and analysis are handled on each pressure tap The pressure data of biography, to obtain the leak condition of pipeline;
E. finally according to the leak condition of pipeline, leakage point is calculated by leak source locating module.
The embodiment of the invention also provides a kind of computer equipments, including memory, processor and storage are on a memory And the computer program that can be run on a processor, the processor execute the heating network leakage monitoring method.
The embodiment of the invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage There is the computer program for executing heating network leakage monitoring method.
The present invention implements the advantageous effects of the technical solution provided are as follows:
1, the pipeline section that heating network leaks can be timely found, and accurately positions leak source position, for processing Heat supply network leakage accident has directive significance;
2, using pressure-measuring-point head conversion module, obtained pressure data is more truly reflected pipeline section pressure;
3, system does not need additional pressure sensor and flowmeter on pipe network, it is only necessary to set when putting into operation in conjunction with pipe network It sets and is being followed in each node of backbone, water circulating pump import and export, the pressure sensor of the primary net import and export of thermal substation and setting Ring water pump import and export, make-up pump, thermal substation flowmeter, without additional flowmeter and sensor, convenient for built Heat supply network implements leakage monitoring system;
4, database can store the data information of heating network leakage, the diagnostic analysis for the later period.
Obviously, those skilled in the art should be understood that each module of the above-mentioned embodiment of the present invention or each step can be with It is realized with general computing device, they can be concentrated on a single computing device, or be distributed in multiple computing devices On composed network, optionally, they can be realized with the program code that computing device can perform, it is thus possible to by it Store and be performed by computing device in the storage device, and in some cases, can be held with the sequence for being different from herein The shown or described step of row, perhaps they are fabricated to each integrated circuit modules or will be multiple in them Module or step are fabricated to single integrated circuit module to realize.In this way, the embodiment of the present invention be not limited to it is any specific hard Part and software combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.

Claims (14)

1. a kind of heating network leakage monitoring system characterized by comprising
SCADA server is connect with the pressure sensor of measuring point each on heating network and flow sensor, is used for acquiring heat supply pipe The pressure data and data on flows of online each measuring point;
Generalized information system is connect with the position sensor of measuring point each on heating network, the pipeline of each measuring point on acquiring heat supply pipe network Geography information and pipe parameter data;
Pipeline section judgment module is leaked, is connect with the SCADA server and generalized information system, for according to the pressure data and pipe Road geography information monitors the operating status of heating network pipeline section, when leaking, determines leakage pipeline section;
Leak source locating module is connect with the leakage pipeline section judgment module, for when leaking, according to the pipe parameter Data, pressure data and data on flows determine the leak position on the leakage pipeline section.
2. heating network leakage monitoring system as described in claim 1, which is characterized in that further include:
Pressure-measuring-point head conversion module, input terminal are connect with the SCADA server and generalized information system, and output end is let out with described The connection of fistulae section judgment module is used for according to the pressure data, data on flows, pipeline geography information and pipe parameter data, It is converted into the pressure data near the primary net inlet and outlet of each thermal substation to correspond to the reality at pipeline section node on heating network Pressure data;
The leakage pipeline section judgment module is specifically used for monitoring heating tube according to the actual pressure data and pipeline geography information The operating status of network management section determines leakage pipeline section when leaking;
The leak source locating module be specifically used for when leaking, according to the pipe parameter data, actual pressure data and Data on flows determines the leak position on the leakage pipeline section.
3. heating network leakage monitoring system as claimed in claim 2, which is characterized in that the pressure-measuring-point head conversion mould Block is specifically used for:
It calculates according to following formula for the actual pressure data at water conduit tube node:
Wherein, Pg1For for the actual pressure data at water conduit tube node;P′g1For water supply pipeline section import near nodal pressure-measuring-point Pressure value;ρ is hot water density in pipeline;G is acceleration of gravity;ΔZg1For pressure tap and starting point node near water supply pipeline section starting point Between level head difference;vg1For the flow velocity at water supply pipeline section starting point node;v′g1Near nodal pressure is played for water supply pipeline section Flow velocity at measuring point;
The actual pressure data at return water main pipe node are calculated according to following formula:
Ph1For the actual pressure data at return water main pipe node;P′h1For the pressure of return water pipeline section import near nodal pressure-measuring-point Value;ρ is hot water density in pipeline;G is acceleration of gravity;ΔZh1For near return water pipeline section starting point between pressure tap and starting point node Level head difference;vh1For the flow velocity at return water pipeline section starting point node;v′h1Near nodal pressure-measuring-point is played for return water pipeline section The flow velocity at place.
4. heating network leakage monitoring system as described in claim 1, which is characterized in that the leakage pipeline section judgment module tool Body is used for:
According to the pressure data, calculate the first pressure between current pipe section and previous pipeline section difference and current pipe section with The difference of the second pressure of latter pipeline section determines the operating status of current pipe section according to the difference of the difference of first pressure and second pressure;
When the operating status for determining current pipe section is to leak, according to pipeline geography information, the geography of current pipe section is determined Position.
5. heating network leakage monitoring system as described in claim 1, which is characterized in that the leak source locating module is specifically used In determined according to following formula it is described leakage pipeline section on leak position:
Wherein,
Wherein: LLFor leak position;D is pipeline diameter;PinFor pipeline section inlet pressure;PoutFor pipeline section outlet pressure;PrfFor reference Pressure;L is pipe range;ZinFor pipeline section entry position head;ZoutFor pipeline section outlet port head;K is slip;Averagely to rub Wipe resistance coefficient;ρ is hot water density in pipeline;G is acceleration of gravity;RrfFor the resistance of reference pressure lower tube section;V is stream in pipe Body flow velocity.
6. heating network leakage monitoring system as claimed in claim 2, which is characterized in that further include:
Data processing module, input terminal are connect with the SCADA server and generalized information system, output end and the pressure-measuring-point water Head conversion module connection, for handling the noise data in the pressure data and data on flows;
The pressure-measuring-point head conversion module is specifically used for that noise will be passed through near the primary net inlet and outlet of each thermal substation Pressure data after data processing is converted into the actual pressure data on heating network at pipeline section node.
7. a kind of heating network leakage monitoring method characterized by comprising
The pressure data and data on flows of each measuring point on SCADA collection of server heating network;
The pipeline geography information and pipe parameter data of each measuring point on generalized information system acquiring heat supply pipe network;
Pipeline section judgment module is leaked according to the pressure data and pipeline geography information, monitors the operation shape of heating network pipeline section State determines leakage pipeline section when leaking;
Leak source locating module is when leaking, according to the pipe parameter data, pressure data and data on flows, determine described in Leak the leak position on pipeline section.
8. heating network leakage monitoring method as claimed in claim 7, which is characterized in that further include:
Pressure-measuring-point head converts module according to the pressure data, data on flows, pipeline geography information and pipe parameter data, It is converted into the pressure data near the primary net inlet and outlet of each thermal substation to correspond to the reality at pipeline section node on heating network Pressure data;
Pipeline section judgment module is leaked according to the pressure data and pipeline geography information, monitors the operation shape of heating network pipeline section State determines leakage pipeline section when leaking, comprising: leakage pipeline section judgment module is according to the actual pressure data and pipeline Geography information monitors the operating status of heating network pipeline section, when leaking, determines leakage pipeline section;
Leak source locating module is when leaking, according to the pipe parameter data, pressure data and data on flows, determine described in Leak the leak position on pipeline section, comprising: leak source locating module is when leaking, according to the pipe parameter data, reality Pressure data and data on flows determine the leak position on the leakage pipeline section.
9. heating network leakage monitoring method as claimed in claim 8, which is characterized in that pressure-measuring-point head conversion module root According to the pressure data, data on flows, pipeline geography information and pipe parameter data, by the primary net inlet and outlet of each thermal substation Neighbouring pressure data is converted into corresponding to the actual pressure data at pipeline section node on heating network, comprising:
It calculates according to following formula for the actual pressure data at water conduit tube node:
Wherein, Pg1For for the actual pressure data at water conduit tube node;P′g1For water supply pipeline section import near nodal pressure-measuring-point Pressure value;ρ is hot water density in pipeline;G is acceleration of gravity;ΔZg1For pressure tap and starting point node near water supply pipeline section starting point Between level head difference;vg1For the flow velocity at water supply pipeline section starting point node;v′g1Near nodal pressure is played for water supply pipeline section Flow velocity at measuring point;
The actual pressure data at return water main pipe node are calculated according to following formula:
Ph1For the actual pressure data at return water main pipe node;P′h1For the pressure of return water pipeline section import near nodal pressure-measuring-point Value;ρ is hot water density in pipeline;G is acceleration of gravity;ΔZh1For near return water pipeline section starting point between pressure tap and starting point node Level head difference;vh1For the flow velocity at return water pipeline section starting point node;v′h1Near nodal pressure-measuring-point is played for return water pipeline section The flow velocity at place.
10. heating network leakage monitoring method as claimed in claim 7, which is characterized in that leakage pipeline section judgment module according to The operating status of the pressure data and pipeline geography information, monitoring heating network pipeline section determines blow-by tube when leaking Section, comprising:
According to the pressure data, calculate the first pressure between current pipe section and previous pipeline section difference and current pipe section with The difference of the second pressure of latter pipeline section determines the operating status of current pipe section according to the difference of the difference of first pressure and second pressure;
When the operating status for determining current pipe section is to leak, according to pipeline geography information, the geography of current pipe section is determined Position.
11. heating network leakage monitoring method as claimed in claim 7, which is characterized in that leak source locating module is being let out When leakage, according to the pipe parameter data, pressure data and data on flows, the leak position on the leakage pipeline section, packet are determined It includes: determining the leak position on the leakage pipeline section according to following formula:
Wherein,
Wherein: LLFor leak position;D is pipeline diameter;PinFor pipeline section inlet pressure;PoutFor pipeline section outlet pressure;PrfFor reference Pressure;L is pipe range;ZinFor pipeline section entry position head;ZoutFor pipeline section outlet port head;K is slip;Averagely to rub Wipe resistance coefficient;ρ is hot water density in pipeline;G is acceleration of gravity;RrfFor the resistance of reference pressure lower tube section;V is stream in pipe Body flow velocity.
12. heating network leakage monitoring method as claimed in claim 8, which is characterized in that further include:
Data processing module handles the noise data in the pressure data and data on flows;
Pressure data near the primary net inlet and outlet of each thermal substation is converted into heating tube by pressure-measuring-point head conversion module Actual pressure data at online pipeline section node, comprising:
Treated by the noise data that passes through near the primary net inlet and outlet of each thermal substation for pressure-measuring-point head conversion module Pressure data is converted into the actual pressure data on heating network at pipeline section node.
13. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor Calculation machine program, which is characterized in that the processor realizes any side of claim 7 to 12 when executing the computer program Method.
14. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has perform claim It is required that the computer program of 7 to 12 any the methods.
CN201811406083.9A 2018-11-23 2018-11-23 Heating network leakage monitoring system and method Pending CN109340583A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111271608A (en) * 2020-03-05 2020-06-12 北京中竞国际能源科技有限公司 Leakage management system and method for compressed air system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111271608A (en) * 2020-03-05 2020-06-12 北京中竞国际能源科技有限公司 Leakage management system and method for compressed air system

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