CN105178392B - Pipeline closing or blocking monitoring method and system for fire water supply system - Google Patents
Pipeline closing or blocking monitoring method and system for fire water supply system Download PDFInfo
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Abstract
The invention discloses a pipeline closing or blocking monitoring method and system for a fire water supply system. The method comprises the steps that a standard pressure ratio is determined, a real-time pressure ratio is acquired, and the real-time pressure ratio is compared with the standard pressure ratio to judge whether a pipeline between detection points is blocked or a valve is located in a closed state, or judge whether a pipeline of a fire water tank leading to a fire pipe network is blocked or the pressure of a fire water tank is low. According to the method, the states of the fire pipe network itself and the fire water tank are determined by adopting the method of comparing the real-time pressure ratio between the detection points with the standard pressure ratio; the method is simple and accurate, whether the condition that the fire pipeline network is blocked or the valve is closed and the state that the water pressure of the fire water tank is reduced to a threshold value exist in the fire pipe network can be detected in real time, therefore, it is guaranteed that the whole fire pipe network ( including an automatic sprinkler system and a fire hydrant system) can be quickly used, and the loss caused by a fire disaster is reduced.
Description
Technical field
The present invention relates to a kind of monitoring field of the fire_fighting pipe network based on pressure detection, special type is related to a kind of fire water-supply system
System closedown of pipeline or blocking monitoring method and system.
Background technology
With the fast development of China's economy, day built by urban track traffic, skyscraper, hotel, hotel, office building etc.
Benefit increases, and the complicated building of these functions once occurs fire will bring heavy losses to people's safety of life and property,
Bring very big negative effect and financial burden also to country and social unit simultaneously.And in actual production life, fire-fighting water resource
Scarcity, water facilities are unsound, regular maintenance management is not in place is the main cause leading to small fire to lead to big fire.
For the problems referred to above, employing automatic sprinkler system more in prior art, hydrant system normal
The dynamic effect that all can guarantee that fire gives full play to fire-fighting fire extinguishing when occurring.But in real security against fire supervision, for saving due to letting out
Leaking the fire water leading to run off it may appear that artificially closing fire valve, once occurring fire it is impossible to fast reaction, causing larger
Loss；Or, it is used for other without being supplemented because of fire protection pipeline infiltration or by the fire water in fire water box, fire occurs
When fire-fighting water supply two cause greater loss not in time.
For avoiding the problems referred to above, have in prior art and the water level in fire water box is carried out with automatic detection and is automatically replenished
Linked system, but this system does not have Monitoring Data, cannot form linkage after fault, and for the blocking of pipeline, valve
The closing of door then cannot be carried out monitoring.
Accordingly, it would be desirable to the method and system that a kind of working condition to fire_fighting pipe network is monitored, can real-time detection arrive
Whether there is blocking or the situation of valve closing in fire_fighting pipe network and whether the hydraulic pressure of fire water box be reduced to threshold values state,
To ensure to occur the quick use of whole fire_fighting pipe network (including automatic sprinkler system, hydrant system) during fire, thus
Reduce the loss causing due to fire.
Content of the invention
In view of this, it is an object of the invention to provide a kind of fire supply system closedown of pipeline or blocking monitoring method and be
System, can real-time detection in fire_fighting pipe network with the presence or absence of blocking or the situation of valve closing and the hydraulic pressure of fire water box be
No it is reduced to threshold values state, to ensure to occur whole fire_fighting pipe network during fire (to include automatic sprinkler system, fire hydrant system
System) quick use, thus reducing the loss that causes due to fire.
The fire supply system closedown of pipeline of the present invention or blocking monitoring method, comprise the following steps:
A. set valve after test point before the valve of fire_fighting pipe network valve and respectively, in valve opening and elevated tank hydraulic pressure just
Normal pressure value after normal pressure value and valve before valve is obtained, by normal pressure value after valve than normal pressure value before valve on the premise of often
Ratio as normal pressure ratio；
B. using real-time pressure after pressure values real-time before the valve of test point real-time detection fire_fighting pipe network valve of step a and valve
Value, using pressure values real-time after valve than pressure values real-time before valve ratio as real-time pressure ratio；
C. the standard pressure ratio value of the real-time pressure ratio of step b and step a is contrasted, when real-time pressure ratio is less than
Normal pressure ratio, then judge that the line clogging between test point or valve are closed；When real-time pressure ratio is more than
Normal pressure ratio, then judge that fire water box is low towards the line clogging of fire_fighting pipe network or fire water box pressure.
Further, in step c, when real-time pressure ratio is less than normal pressure ratio more than a set point, then judge
Line clogging between test point or valve are closed；When real-time pressure ratio sets more than one more than normal pressure ratio
When determining scope, then judge that fire water box is low towards the line clogging of fire_fighting pipe network or fire water box pressure；
Further, in step a, also will be poor as normal pressure for the difference of normal pressure value before normal pressure value after valve and valve
Value；In step b, also using the difference of pressure values real-time before pressure values real-time after valve and valve as real-time pressure difference；In step c,
When real-time pressure ratio is less than normal pressure ratio, and when pressure difference is again smaller than normal pressure difference in real time, then judge detection
Line clogging between point or valve are closed；When real-time pressure ratio is more than normal pressure ratio, and real-time pressure
When difference is not changed in respect to normal pressure difference, then judge that fire water box leads to line clogging or the fire water of fire_fighting pipe network
Case pressure is low；
Further, in step c, when real-time pressure ratio is less than normal pressure ratio, and real-time pressure difference is again smaller than mark
During quasi- pressure difference, and the numerical value that real-time pressure ratio is less than normal pressure ratio is poor less than normal pressure with real-time pressure difference
Value has corresponding relation, then judge that the line clogging between test point or valve are closed；
Further, described test point includes test point after least favorable point test point and valve before high-order and valve.
The invention also discloses a kind of fire supply system closedown of pipeline or blocking monitoring system, comprising:
Pressure detector unit, including being distributed in fire_fighting pipe network pressure transducer, for obtaining disappearing of fire_fighting pipe network set point
Waterproof pressure；
CPU, stores the normal pressure ratio between set point, transmits for receiving pressure detector unit
Fire_fighting pipe network set point fire fighting hydraulic pressure hard real time data, set point is obtained according to the fire fighting hydraulic pressure hard real time data of set point
Between real-time pressure ratio, contrast real-time pressure ratio and normal pressure ratio.
Further, described CPU also stores the normal pressure difference between set point, for receiving pressure
The fire fighting hydraulic pressure hard real time data of the fire_fighting pipe network set point that detector unit transmits, according to the fire fighting hydraulic pressure hard real time number of set point
According to the real-time pressure difference obtaining between set point, contrast real-time pressure difference and normal pressure difference；
Further, also include output unit, for CPU is contrasted real-time pressure ratio and normal pressure ratio
The result of the result of value and the real-time pressure difference of contrast and normal pressure difference and judged result output；
Further, remote monitoring center and network transmitting unit are also included, network transmitting unit is used for for central authorities processing list
The judged result of unit is delivered to remote monitoring center；
Further, also include sending alarm signal for the order receiving CPU or/and remote monitoring center
Alarm unit.
Beneficial effects of the present invention: the fire supply system closedown of pipeline of the present invention or blocking monitoring method and system, by
The test point pressure that each sets in fire_fighting pipe network should be constant, should be with normal pressure using pressure ratio real-time between test point
The method that ratio compares, determines the state of fire_fighting pipe network itself and fire water box, and method is simply accurate, being capable of real-time detection
Whether there is blocking or the situation of valve closing in fire_fighting pipe network and whether the hydraulic pressure of fire water box is reduced to threshold values shape
State, to ensure to occur the quick use of whole fire_fighting pipe network (including automatic sprinkler system, hydrant system) during fire, from
And reduce the loss causing due to fire.
Brief description
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is method of the present invention flow chart；
Fig. 2 is present system theory diagram.
Specific embodiment
Fig. 1 is method of the present invention flow chart, as shown in the figure: the fire supply system closedown of pipeline of the present embodiment or stifled
Plug monitoring method, comprises the following steps:
A. set valve after test point before the valve of fire_fighting pipe network valve and respectively, in valve opening and elevated tank hydraulic pressure just
Normal pressure value after normal pressure value and valve before valve is obtained, by normal pressure value after valve than normal pressure value before valve on the premise of often
Ratio as normal pressure ratio；Before valve, test point is typically chosen the test point before fire_fighting pipe network valve, and disappears with this
The least favorable point that anti-pipe network is located at a high position is corresponding, and after valve, test point should be multiple, after being in the valve of all controlled valves of pipe network,
And, generally, normal pressure ratio be also after each valve the normal pressure value of test point with positioned at high-order least favorable
Ratio between the normal pressure value of point (before valve) test point, now it is believed that point on the basis of least favorable point (before valve) test point；
Of course, it is possible to using different datum marks, all enable goal of the invention；
B. using real-time pressure after pressure values real-time before the valve of test point real-time detection fire_fighting pipe network valve of step a and valve
Value, using pressure values real-time after valve than pressure values real-time before valve ratio as real-time pressure ratio；The calculating of pressure ratio in real time
Selection with datum mark should be consistent with the selection of the calculating of the normal pressure ratio in step a and datum mark, and here is no longer superfluous
State；
C. the standard pressure ratio value of the real-time pressure ratio of step b and step a is contrasted, when real-time pressure ratio is less than
Normal pressure ratio, then judge that the line clogging between test point or valve are closed；I.e. due to line clogging or
Valve closing, after valve, test point pressure values taper into, and (before at least one valve, test point is as base thus to can determine that test point
Line clogging between on schedule) or valve are closed；When real-time pressure ratio is more than normal pressure ratio, then judge to disappear
Caisson is low towards the line clogging of fire_fighting pipe network or fire water box pressure, that is, because tank pressure declines, examines before valve and after valve
Measuring point all deducts identical pressure value, then after valve before the real-time pressure values of test point and valve the real-time pressure values of test point ratio
Become larger, thus can determine whether out that fire water box is low towards the line clogging of fire_fighting pipe network or fire water box pressure.
Certainly, with preceding method contrary calculation may also be employed, detect after the pressure values of test point and valve before valve
The ratio of the pressure values of point, as pressure values ratio, judges also contrary accordingly, also can reach goal of the invention, here is no longer superfluous
State.
In the present embodiment, in step c, when real-time pressure ratio is less than normal pressure ratio more than a set point, then
Judge that the line clogging between test point or valve are closed；When real-time pressure ratio exceedes more than normal pressure ratio
During one set point, then judge that fire water box is low towards the line clogging of fire_fighting pipe network or fire water box pressure；Become using scope
Change and judged, environmental fluctuating interference can be excluded, and reduce unnecessary warning and in-situ processing.
In the present embodiment, in step a, also using the difference of normal pressure value before normal pressure value after valve and valve as standard pressure
Strong difference；In step b, also using the difference of pressure values real-time before pressure values real-time after valve and valve as real-time pressure difference；Step c
In, when real-time pressure ratio is less than normal pressure ratio, and when pressure difference is again smaller than normal pressure difference in real time, then judge inspection
Line clogging between measuring point or valve are closed, if now pressure difference is equal to normal pressure difference in real time,
Valve and pipeline should belong to normal, should find the problem of other presence, and such as tank pressure is excessively high；When real-time pressure ratio is big
In normal pressure ratio, and when real-time pressure difference is not changed in respect to normal pressure difference, then judge that fire water box leads to
The line clogging of fire_fighting pipe network or fire water box pressure are low, if now pressure difference is more than normal pressure difference in real time, should
Belong to detecting system fault, such as Sensor Problem etc., water tank can be excluded abnormal；Assist the determination methods of ratio using difference,
More accurate can must be judged, be excluded external interference.
In the present embodiment, select two test point a (before valve), b (after valve)；Least favorable point (before valve) detection positioned at high point
Normal pressure value p of pointA marks=ρ ghA marks, real-time pressure values pA is real=ρ ghA is real, normal pressure value p of test point after valveB marks=ρ ghB marks,
Pressure values p in real timeB is real=ρ ghB is real；ρ is fire-fighting water density, and g is acceleration of gravity, hB is real=hB is realFor test point after valve with respect to water
The height of case liquid level, hA marks=hA is realFor test point after valve with respect to water tank level height；
When real-time pressure ratio is less than normal pressure ratio, and when pressure difference is again smaller than normal pressure difference in real time: kFullsized
=pB is real/pA is real, kMark ratio=pB marks/pA marks, kFullsized-kMark ratio＜ 0；pB is real-pA is real=kReal poor, pB marks-pA marks=kMark is poor, kReal poor-kMark is poor＜ 0；Now judge
Blocking or valve closing between two test point a (before valve), b (after valve)；
When real-time pressure ratio is more than normal pressure ratio, and when real-time pressure difference is equal to normal pressure difference: kFullsized-
kMark ratio＞ 0；kReal poor-kMark is poor=0；Now judge that fire water box is low towards the line clogging of fire_fighting pipe network or fire water box pressure；
Certainly, in the present embodiment, b (after valve) test point only chooses one, can be the valve of multiple valves when actually used
Test point afterwards, needs to select different datum mark a (being generally located at the least favorable point of high point) according to different, here is no longer superfluous
State.
During use, according to fire_fighting pipe network be automatic sprinkler system pipe network and fire hydrant linkage pipe network can set difference
Test point, such as, automatic sprinkler system pipe network set test point a, test point b and test point c, wherein test point a position
In a high position and before switch valve valve, after test point b is located at switch valve valve and before alarm valve valve, test point c is located at warning
After valve valve, will not be described here；And fire hydrant linkage pipe network is additionally provided with air relief valve, should add when air relief valve calculates after and before the valve and subtract
The decompression valve parameter of pressure valve, will not be described here.
In the present embodiment, in step c, when real-time pressure ratio is less than normal pressure ratio, and real-time pressure difference is also little
When normal pressure difference, and real-time pressure ratio is less than the numerical value of normal pressure ratio and real-time pressure difference is less than standard pressure
Strong difference has corresponding relation, then judge that the line clogging between test point or valve are closed；Corresponding relation refers to
It is that line clogging or valve are closed down, when real-time pressure ratio is reduced to the numerical value determining, then real-time pressure difference
The numerical value reducing is to determine, the two has corresponding relation, according to formula kFullsized=pB is real/pA is real, pB is real-pA is real=kReal poorCan be seen that,
Will not be described here.
In this enforcement, described test point includes test point after least favorable point test point and valve before high-order and valve；Tool
There is the detection reference of standard, conveniently contrast and calculate.
The invention also discloses a kind of fire supply system closedown of pipeline or blocking monitoring system, comprising:
Pressure detector unit, including being distributed in fire_fighting pipe network pressure transducer, for obtaining disappearing of fire_fighting pipe network set point
Waterproof pressure；According to the needs of preceding method, set test point and pressure transducer is installed；
CPU, stores the normal pressure ratio between set point, transmits for receiving pressure detector unit
Fire_fighting pipe network set point fire fighting hydraulic pressure hard real time data, set point is obtained according to the fire fighting hydraulic pressure hard real time data of set point
Between real-time pressure ratio, contrast real-time pressure ratio and normal pressure ratio.
In the present embodiment, described CPU also stores the normal pressure difference between set point, for receiving
The fire fighting hydraulic pressure hard real time data of the fire_fighting pipe network set point that pressure detector unit transmits, real according to the fire water pressure of set point
When data obtain real-time pressure difference between set point, contrast real-time pressure difference and normal pressure difference.
In the present embodiment, also include output unit, for CPU is contrasted real-time pressure ratio and standard pressure
The result of the result of strong ratio and the real-time pressure difference of contrast and normal pressure difference and judged result output；According to aforementioned side
Method, judges that the line clogging between test point or valve are closed；Or, judge that fire water box leads to fire_fighting pipe network
Line clogging or fire water box pressure are low；Will not be described here.
In the present embodiment, also include remote monitoring center and network transmitting unit, network transmitting unit is used for centre
The judged result of reason unit is delivered to remote monitoring center；Described remote monitoring center generally comprises remote central processing unit,
For receiving the relevant parameter that premise central processing unit is transmitted by network transmitting unit, and believed according to this parameter output data
Number, control command etc.；Network transmitting unit is the Internet, mobile network etc., will not be described here；Certainly possesses necessary communication
Module, communication module and remote monitoring center interactive correspondence, are monitored by long-range, realize effectively supervising, it is to avoid occur because disappearing
Fire-fighting accident in anti-system problem.
In the present embodiment, also include sending warning for the order receiving CPU or/and remote monitoring center
The alarm unit of signal.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although with reference to relatively
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, the objective without deviating from technical solution of the present invention and scope, and it all should be covered at this
In the middle of the right of invention.
Claims (4)
1. a kind of fire supply system closedown of pipeline or blocking monitoring method it is characterised in that: comprise the following steps:
A. set valve after test point before the valve of fire_fighting pipe network valve and respectively, in valve opening and elevated tank hydraulic pressure is normal
Under the premise of obtain normal pressure value after normal pressure value and valve before valve, by normal pressure value after valve than the ratio of normal pressure value before valve
It is worth as normal pressure ratio, using the difference of normal pressure value before normal pressure value after valve and valve as normal pressure difference；
B. using real-time pressure values after pressure values real-time before the valve of test point real-time detection fire_fighting pipe network valve of step a and valve,
Using pressure values real-time after valve than pressure values real-time before valve ratio as real-time pressure ratio, by before pressure values real-time after valve and valve
The difference of pressure values is as real-time pressure difference in real time；
C. by the normal pressure ratio of the real-time pressure ratio of step b and real-time pressure difference and step a and normal pressure difference
Contrasted, when real-time pressure ratio is less than normal pressure ratio, and when pressure difference is again smaller than normal pressure difference in real time, then
Judge that the line clogging between test point or valve are closed；When real-time pressure ratio is more than normal pressure ratio, and
When pressure difference is not changed in respect to normal pressure difference in real time, then judge that fire water box leads to the line clogging of fire_fighting pipe network
Or fire water box pressure is low.
2. fire supply system closedown of pipeline according to claim 1 or blocking monitoring method it is characterised in that: step c
In, when real-time pressure ratio is less than normal pressure ratio more than a set point, then judge the line clogging between test point
Or valve is closed；When real-time pressure ratio is more than normal pressure ratio more than a set point, then judge fire-fighting
Water tank is low towards the line clogging of fire_fighting pipe network or fire water box pressure.
3. fire supply system closedown of pipeline according to claim 1 or blocking monitoring method it is characterised in that: step c
In, when real-time pressure ratio is less than normal pressure ratio, and when pressure difference is again smaller than normal pressure difference in real time, and press in real time
Strong ratio is less than the numerical value of normal pressure ratio and real-time pressure difference has corresponding relation less than the numerical value of normal pressure difference,
Then judge that the line clogging between test point or valve are closed.
4. fire supply system closedown of pipeline according to claim 1 or blocking monitoring method it is characterised in that: described inspection
Measuring point includes test point after least favorable point test point and valve before high-order and valve.
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| CN201510574193.6A CN105178392B (en) | 2015-09-10 | 2015-09-10 | Pipeline closing or blocking monitoring method and system for fire water supply system |
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| CN201510574193.6A CN105178392B (en) | 2015-09-10 | 2015-09-10 | Pipeline closing or blocking monitoring method and system for fire water supply system |
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| CN105178392B true CN105178392B (en) | 2017-02-01 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106020034A (en) * | 2016-06-23 | 2016-10-12 | 合肥工业大学 | Method for automatically detecting municipal sewage pipeline siltation |
| CN106128024B (en) * | 2016-08-19 | 2018-12-14 | 中铁第六勘察设计院集团有限公司 | It grows up fire extinguisher canvas hose pipeline exploding early warning device in Underwater Traffic Tunnel |
| CN111219208A (en) * | 2020-01-15 | 2020-06-02 | 安徽蓝海之光科技有限公司 | Intelligent pipeline ponding alarm device in pit |
| CN112129339B (en) * | 2020-09-14 | 2022-02-15 | 深圳供电局有限公司 | Pipeline blockage detection device |
| CN113244563A (en) * | 2021-03-25 | 2021-08-13 | 杭州智缤科技有限公司 | Fire hydrant front end control valve closes valve monitoring feedback system |
| CN115046678A (en) * | 2022-08-15 | 2022-09-13 | 山东金宇信息科技集团有限公司 | Method and device for monitoring pressure of fire fighting pipeline in tunnel and storage medium |
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| CN1484012A (en) * | 2003-08-04 | 2004-03-24 | 伍华本 | Sensor system for pressure difference type detecting filter blocking state |
| DE102004016378A1 (en) * | 2004-04-02 | 2005-11-03 | Stefan Windisch | Method and arrangement for active monitoring of pipelines |
| KR100860613B1 (en) * | 2008-02-21 | 2008-09-29 | 주식회사 삼진정밀 | Supervisory remote control system for rate of water supply |
| CN201964145U (en) * | 2010-12-31 | 2011-09-07 | 浙江师范大学 | Detecting device for pipeline blocking |
| CN102692931B (en) * | 2012-06-06 | 2015-08-19 | 李茂华 | Tunnel fire-fighting head-tank level monitoring system and method for supervising |
| GB2506837B (en) * | 2012-08-07 | 2017-08-09 | Atmos Wave Ltd | A method of identifying leaks in a fluid carrying conduit |
| CN103272359B (en) * | 2013-06-08 | 2016-03-30 | 公安部沈阳消防研究所 | A kind of real-time monitoring system for structural fire protection water supply system and method |
| CN103994331A (en) * | 2014-06-13 | 2014-08-20 | 上海市城市建设设计研究总院 | Device for monitoring and slowing down blocking of sludge pipe |
| CN204477701U (en) * | 2014-10-16 | 2015-07-15 | 中南大学 | There is the intelligent feedwater piping of blocking self-inspection and locating function |
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Effective date of registration: 20180802 Address after: 400039 3, floor K, standard workshop 52, four Garden Street, Kowloon Po, Chongqing. Patentee after: Chongqing Hehang Technology Co.,Ltd. Address before: 401336 63, 5 floor, Rong Ying building, science and technology innovation center, 8 Yuwang Road, Nan'an District, Chongqing. Patentee before: CHONGQING HEHANG INTERNET OF THINGS TECHNOLOGY RESEARCH INSTITUTE CO., LTD. |