CN201885856U - Leakage monitoring system for ship fire-fighting valve - Google Patents
Leakage monitoring system for ship fire-fighting valve Download PDFInfo
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- CN201885856U CN201885856U CN 201020676714 CN201020676714U CN201885856U CN 201885856 U CN201885856 U CN 201885856U CN 201020676714 CN201020676714 CN 201020676714 CN 201020676714 U CN201020676714 U CN 201020676714U CN 201885856 U CN201885856 U CN 201885856U
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Abstract
The utility model relates to a leakage monitoring system for a ship fire-fighting valve, which is applicable to the leakage monitoring of high-pressure valves or universal valves in an ordinary industrial field and aims to solve the problems that in a traditional dry-pipe type fire-fighting system, a sensor is inconvenient to install, a monitoring element can not be washed due to dirt hanging, the accumulated water of a valve due to leakage can not be discharged and the like; and the problems that in a wet-pipe type fire-fighting system, only the pressure can be monitored by a traditional monitoring method, and the warning for low pressure, high pressure and over-quick pressure rise can not be realized. The leakage monitoring system comprises a CAN (Controller Area Network) bus network, field monitoring equipment, a liquid-level monitoring unit and a pressure monitoring unit, wherein the output end of the liquid-level monitoring unit is connected with the corresponding input end of the field monitoring equipment, the output end of the pressure monitoring unit is connected with the corresponding input end of the field monitoring equipment, and the output end of a communication module of the field monitoring equipment is connected to the CAN bus network. The leakage monitoring system is used for the leakage monitoring of total-ship fire-fighting valves of large ships.
Description
Technical field
The utility model relates to ship's fire fighting valve leak monitoring system.
Background technology
At present, the fire main of fire-fighting system mainly contains two kinds, and a kind of is " main " form, does not promptly have water in the pipeline between fire-fighting valve and the spray head, in case breaking out of fire, the fire-fighting valve is opened, and fire water is sprayed by spray head at last by valve, pipeline.This mode, system response is relatively slow.Therefore another kind of form has been born: " wet pipe " form, promptly in the pipeline between fire-fighting valve and the spray head, be filled with the fire water of certain pressure, and spray head can not spray under this pressure, has only when pressure increases to surpass working value, and spray head just can be sprayed water.Under this form, in case breaking out of fire because of fire-fighting system does not have the process of pipeline water-filling, so is reacted very rapid.At present, be not specifically designed to the system equipment of valve leak monitoring, the level switch that only can be used for water leakage monitoring, and the pressure transducer of measuring fluid pressure, general water leakage monitoring method is as follows: for the main form, level switch is installed in the lower position that may leak, level switch links to each other with the alarm of far-end by cable, in case monitor leakage accident, alarm produces reports to the police.For " wet pipe " form, pipeline generally all is equipped with pressure transducer can monitor out the interior pressure of pipeline at any time.When the point of needs monitoring is many, level switch and pressure transducer can be inserted the PLC system, realize concentrating monitoring by programming; Whether but can't monitor valve with level switch leaks.Existing monitoring method is for " main " form fire-fighting system, there are problems such as the sensor installation is inconvenient, the sensor integrity can't be carried out site inspection, whether valve really leaks is inconvenient to confirm, monitoring element extension dirt can't clean, valve seepage ponding can't discharge; For " wet pipe " form fire-fighting system, it can only monitoring pressure, and can not monitor liquid level.
The utility model content
The purpose of this utility model is in order to solve existing monitoring method for " main " form fire-fighting system, exist sensor install inconvenient, the sensor integrity can't be carried out site inspection, whether valve really leaks be inconvenient to confirm that monitoring element extension dirt can't clean, valve seepage ponding can't discharge; For " wet pipe " form fire-fighting system, it can only monitoring pressure, and can not monitor the problem of liquid level, and the present provides a kind of ship's fire fighting valve leak monitoring system.
Ship's fire fighting valve leak monitoring system, it comprises CAN bus network 1, a plurality of field monitoring equipment 2, a plurality of level monitorings unit 3 and a plurality of pressure monitorings unit 4, the monitor signal output terminal of each level monitoring unit 3 is connected with the level monitoring signal input part of a field monitoring equipment 2, the monitor signal output terminal of each pressure monitoring unit 4 is connected with the pressure monitoring signal input part of a field monitoring equipment 2, and the PORT COM of a plurality of field monitoring equipment 2 is connected on the CAN bus network 1.The level switch that the utility model will be used for the valve leak monitoring becomes special-purpose valve leak monitoring means with pressure sensor package, on-the-spot installation is very convenient, both having can be used as independently product introduces to the market, also can be used as an assembly of fire-fighting valve products, provide with valve, both can be used for " main " form, also can be as " wet pipe " form.
Description of drawings
Accompanying drawing 1 is a system architecture synoptic diagram of the present utility model, and accompanying drawing 2 is a level monitoring cellular construction synoptic diagram of the present utility model, and accompanying drawing 3 is a pressure monitoring cellular construction synoptic diagram of the present utility model.
Embodiment
Embodiment one:
In conjunction with Fig. 1 present embodiment is described, it comprises CAN bus network 1, a plurality of field monitoring equipment 2, a plurality of level monitorings unit 3 and a plurality of pressure monitorings unit 4 present embodiment, the monitor signal output terminal of each level monitoring unit 3 is connected with the level monitoring signal input part of a field monitoring equipment 2, the monitor signal output terminal of each pressure monitoring unit 4 is connected with the pressure monitoring signal input part of a field monitoring equipment 2, and the PORT COM of a plurality of field monitoring equipment 2 is connected on the CAN bus network 1.The utility model adopts annular CAN bus network, and promptly two of bus end points all are connected to the remote centralized displaying dish, if on the bus place's open circuit fault takes place like this, can not influence the normal use of bus.The CAN bus is followed CAN2.0A/B, and when communication distance was not more than 500 meters, baud rate can reach 125kbps, and the CAN interface all carries out photoelectricity isolates.Network can hold 64 field monitoring equipment.
Each field monitoring equipment comprises four modules: 1 of power module, 1 of communication module, 2 of signal acquisition module, module all adopt the European integrated circuit board structure of standard 3U.Power module is the monitoring means power supply of this equipment and this equipment of access; Signal acquisition module is responsible for the collection that monitoring means sends data, and each signal acquisition module can be responsible for the signals collecting of 8 level monitoring unit and 8 pressure monitoring unit, and is less if monitoring is counted, and can only adorn a signal acquisition module; Information module is used for the affirmation of alarm condition and the sound and light alarm indication is provided, and information package is uploaded by the CAN bus, and network can hold 64 field monitoring equipment, and each field monitoring equipment can connect 16 level monitoring unit and 16 pressure monitoring unit.Remote centralized displaying can be carried out, computer system can be inserted.
The monitoring equipment base plate is provided with toggle switch and can be this field monitoring apparatus settings address at the scene, and can set the access state of each monitoring means.
The remote centralized displaying dish can be designed to the structure that needs according to demand, has become meter type for ease of installation and design on the indication control board aboard ship among Fig. 1.System leaves the CAN interface on network, can be connected to computer system by the CAN gateway easily, on computers by special software, obtains abundant expanded function such as statistics, record, data and curves.
The field monitoring equipment integral adopts shielding construction, and window is installed shield glass, and the aviation electric connector all installs filter element additional.
Embodiment two:
In conjunction with Fig. 2 present embodiment is described, the level monitoring unit 3 of present embodiment comprises level switch 5, level monitoring cell body 6, blow cock 7, detect and flushing cock 8 and side window mouth 9, flat shoulder grafting head 14, level monitoring cell signal output interface 15, level switch 5 ends place in the cavity of level monitoring cell body 6, the root of level switch 5 is connected level monitoring cell body 6 tops, detect and wash the left upper end that cock 8 is connected level monitoring cell body 6, blow cock 7 is connected the bottom righthand side of level monitoring cell body 6, the front of level monitoring cell body 6, the side has side window mouth 9, be positioned at level monitoring cell body 6 top-right flat shoulder grafting heads 14 and connect extinguishing pipe, level monitoring cell signal output interface 15 connects field monitoring equipment 2 level monitoring signal input parts.All connect liquid metal part material and are the 316L stainless steel, can measure the seawater medium.Other composition is identical with embodiment one with annexation.
The principle of work of level monitoring unit 3 is described in conjunction with Fig. 2, because the level monitoring unit is installed in the minimum position of pipeline, when valve has leakage failure to take place, water can flow into level monitoring unit 3 along conduit through flat shoulder grafting head 14, as Fig. 2, when the water level in the level monitoring unit 3 surpassed 13mm place, level switch 5 bottom, level switch 5 was sent alerting signal, and alerting signal exports field monitoring equipment 2 level monitoring signal input parts to through level monitoring cell signal output interface 15.Under alarm condition, can use a torch, whether to internal radiation, inwardly observing the inside from front window has water from side window mouth 9, can realize reporting to the police and confirm.Level switch 5 itself has very strong antijamming capability, and sensitive element partly hangs with low amount of dirt false alarm can not take place.Leakage failure can be opened blow cock 7 ponding is discharged after getting rid of.Whether can open in the daily servicing process and detect and flushing cock 8, inject low amounts of water to the inside, make water level surpass 13mm place, level switch 5 bottom, report to the police by observing level switch 5, whether normal, or whether the action thresholding is accurate if detecting level switch 5 work.If level switch 5 sensitive elements are partly hung dirt too much, for avoiding causing false alarm, blow cock 7, detection and flushing cock 8 all can be opened, make clear water from detecting and flushing cock 8 injections, flow out sensitive element that in this way can cleaning fluid bit switch 5 from blow cock 7.
Embodiment three:
In conjunction with Fig. 3 present embodiment is described, the pressure monitoring unit 4 of present embodiment comprises pressure monitoring cell body 10, pressure transducer 11, metering circuit plate 12, electric connector 13, the interface of fire main, external thread connected extinguishing pipe under pressure monitoring cell body 10 connected, pressure transducer 11 signal output parts connect metering circuit plate 12 signal input parts, metering circuit plate 12 is encapsulated in pressure monitoring cell body 10 cavitys, metering circuit plate 12 output terminals connect electric connector 13, and electric connector 13 connects field monitoring equipment 2 pressure monitoring signal input parts.And the faying face between body all has O-ring seals to carry out encapsulation process.On metering circuit plate 12, there are three group alarm thresholdings to set toggle switch.All connect liquid metal part material and are the 316L stainless steel, can measure the seawater medium.Other composition is identical with embodiment two with annexation.
The principle of work of pressure monitoring unit is described in conjunction with Fig. 3, on the circuit board of the inside, pressure monitoring unit three groups of toggle switchs are arranged, first group is used for setting the alarm pressure lower limit, and second group is used for setting the alarm pressure upper limit, and the 3rd group is used for set pressure rising speed alarm threshold.Fire water under the normal operating conditions in the fire main keeps certain pressure.This moment, spray head can not sprayed water, and when the rising of fire water pressure, when surpassing the operating pressure of spray head, spray head just can be opened and spray.If the fire-fighting valve is not opened, and hydraulic pressure reduces, and can judge spray head generation water leakage fault thus.Pack into behind the fire main in the pressure monitoring unit, pressure transducer 11 can directly be measured the pressure of fire water, and the pressure monitoring unit is uploaded force value in the mode of 4～20mA signal.When hypotony, the pressure monitoring unit sends 3.8mA pulse current alerting signal when sending force value.When hypertonia or pressure rising excessive velocities, the pressure monitoring unit sends 21mA pulse current alerting signal when sending force value.
The utility model was that the full ship fire-fighting of large ship valve leakage monitoring designs originally, also can be applicable to the leakage monitoring of high pressure valve or general industry field universal valve.
Claims (4)
1. ship's fire fighting valve leak monitoring system, it is characterized in that it comprises CAN bus network (1), a plurality of field monitoring equipment (2), a plurality of level monitorings unit (3) and a plurality of pressure monitorings unit (4), the monitor signal output terminal of each level monitoring unit (3) is connected with the level monitoring signal input part of a field monitoring equipment (2), the monitor signal output terminal of each pressure monitoring unit (4) is connected with the pressure monitoring signal input part of a field monitoring equipment (2), and the PORT COM of a plurality of field monitoring equipment (2) is connected on the CAN bus network (1).
2. according to the described ship's fire fighting valve leak of claim 1 monitoring system, it is characterized in that level monitoring unit (3) comprises level switch (5), level monitoring cell body (6), blow cock (7), detect and flushing cock (8) and side window mouth (9), flat shoulder grafting head (14), level monitoring cell signal output interface (15), level switch (5) end places in the cavity of level monitoring cell body (6), the root of level switch (5) is connected level monitoring cell body (6) top, detect and wash the left upper end that cock (8) is connected level monitoring cell body (6), blow cock (7) is connected the bottom righthand side of level monitoring cell body (6), the front of level monitoring cell body (6), the side has side window mouth (9), be positioned at the top-right flat shoulder grafting head of level monitoring cell body (6) (14) and connect extinguishing pipe, level monitoring cell signal output interface (15) connects field monitoring equipment (2) level monitoring signal input part.
3. according to claim 1 or 2 described ship's fire fighting valve leak monitoring systems, it is characterized in that pressure monitoring unit (4) comprises pressure monitoring cell body (10), pressure transducer (11), metering circuit plate (12), electric connector (13), the interface of fire main under pressure monitoring cell body (10) connects, external thread connects extinguishing pipe, pressure transducer (11) signal output part connects metering circuit plate (12) signal input part, metering circuit plate (12) is encapsulated in pressure monitoring cell body (10) cavity, metering circuit plate (12) output terminal connects electric connector (13), and electric connector (13) connects field monitoring equipment (2) pressure monitoring signal input part.
4. according to the described ship's fire fighting valve leak of claim 3 monitoring system, it is characterized in that the CAN bus network is annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020676714 CN201885856U (en) | 2010-12-21 | 2010-12-21 | Leakage monitoring system for ship fire-fighting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020676714 CN201885856U (en) | 2010-12-21 | 2010-12-21 | Leakage monitoring system for ship fire-fighting valve |
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| Publication Number | Publication Date |
|---|---|
| CN201885856U true CN201885856U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020676714 Expired - Fee Related CN201885856U (en) | 2010-12-21 | 2010-12-21 | Leakage monitoring system for ship fire-fighting valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196634A (en) * | 2013-04-11 | 2013-07-10 | 中国船舶重工集团公司第七�三研究所 | Ultrasonic wave valve leakage detection device |
| CN106870958A (en) * | 2017-03-22 | 2017-06-20 | 中国科学院上海微***与信息技术研究所 | A kind of detection of water pressure condition and transfer method and its realize device |
| CN108168800A (en) * | 2017-12-25 | 2018-06-15 | 沪东中华造船(集团)有限公司 | A kind of method for butterfly valve being replaced to carry out pipeline tightness test using polyethylene tube |
| CN110398312A (en) * | 2019-08-16 | 2019-11-01 | 湖南启泰传感科技有限公司 | A kind of intelligence outdoor fire hydrant remote water pressure monitoring terminal and intelligent outdoor fire hydrant |
-
2010
- 2010-12-21 CN CN 201020676714 patent/CN201885856U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196634A (en) * | 2013-04-11 | 2013-07-10 | 中国船舶重工集团公司第七�三研究所 | Ultrasonic wave valve leakage detection device |
| CN103196634B (en) * | 2013-04-11 | 2015-09-09 | 中国船舶重工集团公司第七�三研究所 | Ultrasonic wave valve leakage detection device |
| CN106870958A (en) * | 2017-03-22 | 2017-06-20 | 中国科学院上海微***与信息技术研究所 | A kind of detection of water pressure condition and transfer method and its realize device |
| CN106870958B (en) * | 2017-03-22 | 2019-04-02 | 上海伟梦物联网科技有限公司 | A kind of detection of water pressure condition and transfer method and its realization device |
| CN108168800A (en) * | 2017-12-25 | 2018-06-15 | 沪东中华造船(集团)有限公司 | A kind of method for butterfly valve being replaced to carry out pipeline tightness test using polyethylene tube |
| CN110398312A (en) * | 2019-08-16 | 2019-11-01 | 湖南启泰传感科技有限公司 | A kind of intelligence outdoor fire hydrant remote water pressure monitoring terminal and intelligent outdoor fire hydrant |
| CN110398312B (en) * | 2019-08-16 | 2024-04-05 | 湖南启泰传感科技有限公司 | Intelligent outdoor hydrant remote water pressure monitoring terminal and intelligent outdoor hydrant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20131221 |