CN205640249U - Fluid leakage monitoring device - Google Patents

Abstract

The utility model provides a fluid leakage monitoring device, this monitoring device include interior valve, flow measurement ware, controller, communication module and pressure detection module, interior valve, flow measurement ware, communication module and pressure detection module are connected with the controller respectively, interior valve is installed on the pipeline, and interior valve lies in between terminal valve and the fluid source to the intercommunication or the disconnection of control pipeline, the flow measurement ware is used for the fluid flow between detection terminal valve and the interior valve, pressure detection module is used for the fluid pressure between detection terminal valve and the interior valve strong to and the fluid pressure between interior valve and the fluid source is strong, communication module be used for with peripheral equipment communication, receive information that peripheral equipment sent and to the peripheral equipment transmitter data. The utility model discloses can keep under the lower circumstances of cost, judge more promptly and accurately that whether the pipeline exists the fluid leakage circumstances, has reduced because the economic loss who leads to the fact for family, enterprise and society is missed to the fluid.

Description

A kind of fluid leakage supervising device

Technical field

This utility model relates to fluid monitoring technical field, especially relates to a kind of fluid leakage prison Control device.

Background technology

Water supply network leakage causes the waste of great lot of water resources, causes great economy to countries in the world Loss, and easily cause various harm.By up till now, the most successively work out multiple pipe Net leak hunting method, and have developed a series of leakage survey of gas network instrument.Wherein, Germany, Britain, The leak hunting method of the main employing of country that Japan etc. are economically developed has: sound listens leak detecting, relevant inspection Leakage method, the automatic monitoring method of the sound that leaks and subregion leak detecting etc..First three methods is dependent on leak and produces The acoustic wave methodogy of raw sound-detection leak source, wherein the correlation between in leak detection method is most advanced maximally effective one Planting leak hunting method, it possesses certain noise resisting ability, and applicable piping laying maybe should not be used relatively deeply The region of leakage method is listened on ground, but when environmental noise is relatively big, when the acoustic signals that leaks is the most weak, is difficult to The acoustic signals that leaks detected, and then the position of leak source cannot be determined.And terminal pipe network leakage of supplying water Losing typically all low discharge slowly to leak, even seepage, the acoustic signals that leaks is the faintest, Therefore the acoustic wave methodogy relying on the sound-detection leak source of leak generation is not suitable for terminal leakage survey of gas network, The most above-mentioned acoustic wave methodogy is not the most online leak hunting method, needs to consume substantial amounts of manpower and materials, And need to be in night work.And subregion leak detecting is to differentiate have by metering conduit flow and pressure Without the existence of leakage, owing to terminal conduit net is primarily referred to as the household internal pipe network after water meter, should Method has not been suitable for terminal leakage survey of gas network from leak-hunting principle.Other leak hunting method also includes: In negative pressure wave method, greatly humidity method of inspection, water examination method, pipe, survey method, search gas are visited Survey method, cable sensing method, ground penetrating radar leak detecting, magnetic resonance detection method, laser light Lead fibre method, infrared thermography, laser scanning method etc..Wherein, the response of negative pressure wave method Speed is fast, and positioning precision is high, but it requires that leakage is paroxysmal gross leak, for Small leak, Then being difficult to detection, current the method is mainly used in main pipeline leak detection, is not suitable for terminal conduit Net leak detection.Additionally magnetic resonance detection method, cuprammonium rayon hollow method, infrared thermography, swash Photoscanning method etc. is the novel leak hunting method that technical merit is higher, and these method leak detection sensitivities are non- Chang Gao, registration, but required somewhat expensive, it is difficult to promote, belong to that typical " technology can OK, economical infeasible " class technology.China's leakage survey of gas network technology is the most backward at present, the biggest portion Point city uses sound to listen leak detecting or the correlation between in leak detection method, some city have started to employing leak sound from Dynamic monitoring method or subregion leak detecting.

In terms of dropout detection equipment, the beginning of the eighties in last century, American and Britain, method, moral, day The equipment such as leak detector, pipeline positioning apparatus, GPR are in succession succeeded in developing, along with science and technology Development, the digital leak detector that releases one after another, Multi probe correlator, region water leakage monitoring instrument etc., Substantially increase reliability and the accuracy of leak detection.But the said equipment is not the most for terminal pipe network Develop.

In sum, though there is multiple leakage survey of gas network method and detection equipment at present, but the most not It is applicable to terminal pipe network.

Background above technology is the analysis carried out for representative with the terminal conduit net that supplies water, but this practicality is new Type technology is not only applicable to water supply terminal pipe network, hereby illustrates.

Utility model content

The purpose of this utility model is to provide a kind of fluid leakage supervising device, and it is according to pipeline The motion conditions of interior fluid can judge whether pipeline exists fluid leakage the most exactly Situation, is effectively reduced fluid leakage, it is to avoid the generation of various secondary disasters, and then reduces Because the economic loss that fluid leakage causes to family, enterprise and society thereof.

This utility model provides a kind of fluid leakage supervising device, surveys including inner valve, flow Measuring device, controller, communication module and pressure detection module；Described inner valve, described flow are surveyed Measuring device, described communication module and described pressure detection module are connected with described controller respectively；Institute State inner valve for being arranged on pipeline, and described inner valve be positioned at terminal valve and fluid source it Between, to control connection or the disconnection of described pipeline；Described flow measuring probe is used for detecting described end Fluid flow between end valve door and described inner valve；Described pressure detection module is used for detecting institute State the fluid pressure between terminal valve and described inner valve, and described inner valve and described stream Fluid pressure between body source；Described communication module is used for and peripheral communications；Described control Device is for the fluid flow detected according to described flow measuring probe, the inspection of described pressure detection module The information that the fluid pressure measured, described communication module receive controls the unlatching of described inner valve Or close；

When the fluid flow that described flow measuring probe detects is less than the first predetermined value, close institute State inner valve；Then the fluid pressure detected according to described pressure detection module determines described end Whether the fluid pressure between end valve door and described inner valve reduces, when judging that pressure reduces, Open inner valve, it is judged that the fluid flow that described flow measuring probe detects is the most pre-less than the 5th Definite value, when the fluid flow that described flow measuring probe detects is less than described five predetermined value, Judge to there is leakage, close inner valve；Or, when the fluid stream that described flow measuring probe detects When amount is less than the first predetermined value, close described inner valve；Then according to described pressure detection module The fluid pressure detected determines the fluid pressure between described terminal valve and described inner valve And whether the absolute value of the difference of the fluid pressure between described inner valve and described fluid source is more than Predetermined pressure is poor, when described absolute value is more than predetermined pressure difference, opens inner valve, it is judged that institute Whether state fluid flow that flow measuring probe detects less than the 5th predetermined value, work as flow measuring probe When the flow detected is less than described five predetermined value, it is judged that there is leakage, close inner valve；

When the fluid flow that flow measuring probe detects is not less than described first predetermined value, according to The information that described communication module receives judges that the flowing of fluid, whether for needing flowing, works as fluid Flowing be not to have when need to flow, it is judged that there is leakage, close described inner valve；When fluid Flowing is to have when need to flow, it is judged that flow continuously through the amount of fluid of described pipeline whether not less than the Two predetermined values, and/or whether the lasting throughput time of fluid is not less than the 3rd predetermined value, when holding When afterflow crosses the amount of the fluid of described pipeline not less than the second predetermined value, and/or the continuing of fluid When throughput time is not less than three predetermined values, close described inner valve.

Further, alarm module is also included；Described alarm module is connected with described controller； Described alarm module for when the flowing of fluid be have need to flow time, and flow continuously through described pipeline The amount of fluid not less than the second predetermined value, and/or the lasting throughput time of fluid is not less than the During three predetermined values, close described inner valve, then alert；

When the warning message of alarm module is released from, opens described inner valve, rejudge and hold Afterflow crosses the amount of the fluid of described pipeline whether not less than the second predetermined value, and/or the holding of fluid Whether continuous throughput time is not less than the 3rd predetermined value；

When the warning message of alarm module is not released from, open described inner valve, it is judged that described Whether the fluid flow that flow measuring probe detects is less than the 4th predetermined value: when the fluid detected When flow is not less than four predetermined values, it is judged that there is leakage, close inner valve；When detect When fluid flow is less than described four predetermined value, rejudge the fluid flowing continuously through described pipeline Amount whether not less than the second predetermined value, and/or whether the lasting throughput time of fluid is not less than 3rd predetermined value；

Described alarm module is additionally operable to after judging to there is leakage, alert.

Further, described pressure detection module is differential pressure pickup.

Further, described pressure detection module includes the first sub-pressure transducer and the second son pressure Strong sensor.

Further, described alarm module includes voice guard and/or visual alarm.

Further, described communication module is WIFI transmitting and receiving module and/or Bluetooth transmission connects Receive module.

Further, described flow measuring probe is pulse flowmeter.

Further, also including generate electricity electric power storage electric supply installation and remote controller, described generating electric power storage supplies Electric installation is connected with described controller；Described remote controller is connected with described controller.

Compared with prior art, the beneficial effects of the utility model are:

Fluid leakage supervising device and the fluid leakage of employing thereof that this utility model provides monitor Method, can enter pipe leak in the case of keeping cost relatively low the most accurately Row automatic monitoring on line.This fluid leakage supervising device include inner valve, flow measuring probe, Controller, communication module and pressure detection module；Described inner valve, described flow measuring probe, Described communication module and described pressure detection module are connected with described controller respectively；Described internal valve Door is used for being arranged on pipeline, and described inner valve is between terminal valve and fluid source, uses In the connection or the disconnection that control described pipeline；Described flow measuring probe is used for detecting described terminal valve Fluid flow between door and described inner valve；Described pressure detection module is used for detecting described end Fluid pressure between end valve door and described inner valve, and described inner valve and described fluid source Between fluid pressure；Described communication module is used for and peripheral communications；Described controller is used Detect in the fluid flow detected according to described flow measuring probe, described pressure detection module Fluid pressure, the information that receives of described communication module control unlatching or the pass of described inner valve Close.Fluid can be preferably judged by flow measuring probe, communication module and pressure detection module Flowing whether for needing flowing, and then judge whether pipeline exists leakage much sooner and exactly Lose, and the flow measuring probe and the pressure detection module that use all need not have the highest essence Degree, and then ensure that cost is relatively low.

Accompanying drawing explanation

In order to be illustrated more clearly that the skill in detailed description of the invention of the present utility model or this technology Art scheme, in describing detailed description of the invention or this technology below, the required accompanying drawing used is made Introduce simply, it should be apparent that, the accompanying drawing in describing below is realities more of the present utility model Execute mode, for those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is the operation principle of the fluid leakage supervising device that this utility model embodiment provides Schematic diagram.

Fig. 2 is the flow chart of the fluid leakage monitoring method that this utility model embodiment provides.

Reference:

101-inner valve；102-flow measuring probe；103-controller；

104-communication module；The sub-pressure transducer of 105-first；The sub-pressure transducer of 106-second；

107-pipeline；108-terminal valve；109-fluid source；

110-remote controller；111-alarm；112-counting unit；

113-comparing unit；114-CPU.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely retouched State, it is clear that described embodiment is a part of embodiment of the present utility model rather than complete The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art are not having Have and make the every other embodiment obtained under creative work premise, broadly fall into this practicality new The scope of type protection.

In description of the present utility model, it should be noted that term " " center ", " on ", D score, The orientation of the instruction such as "left", "right", " vertically ", " level ", " interior ", " outward " or position relationship For based on orientation shown in the drawings or position relationship, be for only for ease of description this utility model and Simplify and describe rather than indicate or imply that the device of indication or element must have specific side Position, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model. Additionally, term " first ", " second ", " the 3rd ", " the 4th ", " the 5th " are only used for describing mesh , and it is not intended that indicate or hint relative importance.

In description of the present utility model, it should be noted that unless otherwise clear and definite regulation and Limiting, term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be consolidate Fixed connection, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, also It can be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, also It can be the connection of two element internals.For the ordinary skill in the art, permissible Concrete condition understands above-mentioned term concrete meaning in this utility model.

Embodiment

Seeing shown in Fig. 1 and Fig. 2, this utility model embodiment provides a kind of fluid leakage prison Control device, including inner valve 101, flow measuring probe 102, controller 103, communication module 104 and pressure detection module；Inner valve 101, flow measuring probe 102, communication module 104 It is connected with controller 103 respectively with pressure detection module；Inner valve 101 is used for being arranged on pipeline On 107, and inner valve 101 is between terminal valve 108 and fluid source 109, to control The connection of pipeline 107 or disconnection, say, that controlled the company of pipeline by inner valve 101 On-off is opened, it should be noted that terminal valve 108 is also mounted on pipeline 107, and fluid Source 109 is connected with pipeline 107, and inner valve 101 is near fluid source 109, and terminal valve 108 Away from fluid source 109, pipeline 107 forms the flow channel of fluid, opening of terminal valve 108 Close the break-make also being able to control the fluid in pipeline 107；Flow measuring probe 102 is used for detecting end Fluid flow between end valve door 108 and inner valve 101；Pressure detection module is used for detecting end Fluid pressure between end valve door 108 and inner valve 101, and inner valve 101 and fluid source Fluid pressure between 109, in the present embodiment, pressure detection module includes that the first sub-pressure passes Sensor 105 and the second sub-pressure transducer 106, the first sub-pressure transducer 105 is used for detecting Fluid pressure between terminal valve 108 and inner valve 101, the second sub-pressure transducer 106 For detecting the fluid pressure between inner valve 101 and fluid source 109；Communication module 104 For with peripheral communications, receive user send information, controller 103 is according to receiving Information may determine that the flowing of fluid, whether for needing flowing, can regulate that " first makes a reservation for Value ", " the second predetermined value ", " the 3rd predetermined value ", " the 4th predetermined value " and " the 5th predetermined value " Size, it is also possible to release report to the police, etc..Wherein having to flow, and to generally refer to user normal When using water, the flowing of the fluid caused；Controller 103 is for according to flow measuring probe 102 Fluid pressure that the fluid flow that detects, pressure detection module detect, communication module 104 The information received controls being turned on and off of inner valve 101；

When the fluid flow that flow measuring probe 102 detects is less than the first predetermined value, in closing Valve 101；Then the fluid pressure detected according to pressure detection module determines terminal valve Whether the fluid pressure between 108 and inner valve 101 reduces, and when judging that pressure reduces, beats Open inner valve 101, it is judged that whether the fluid flow that flow measuring probe 102 detects is less than the 5th Predetermined value, when the fluid flow that flow measuring probe 102 detects is less than five predetermined values, sentences Disconnected existence misses, and closes inner valve 101；When judging that pressure does not reduces, reduce inner valve 101 Closedown frequency, rejudge fluid flow that flow measuring probe 102 detects whether less than the One predetermined value；Or, the fluid flow detected when flow measuring probe 102 is less than the first predetermined value Time, close inner valve 101；Then the fluid pressure detected according to pressure detection module determines Fluid pressure between terminal valve 108 and inner valve 101 and inner valve 101 and fluid source The absolute value of the difference of the fluid pressure between 109 is the poorest, when this absolute value more than predetermined pressure Time poor more than predetermined pressure, open inner valve 101, it is judged that flow measuring probe 102 detects Whether fluid flow is less than the 5th predetermined value, when flow measuring probe 102 detects flow less than the 5th During predetermined value, it is judged that there is leakage, close inner valve 101；When absolute value is not more than pre-level pressure Strong poor time, reduce inner valve 101 closedown frequency, rejudge flow measuring probe 102 and detect Whether the fluid flow arrived is less than the first predetermined value.

When the fluid flow that flow measuring probe 102 detects is not less than the first predetermined value, according to The information that communication module 104 receives judges that the flowing of fluid, whether for needing flowing, works as fluid Flowing be not to have when need to flow, it is judged that there is leakage, close inner valve 101；When fluid Flowing is to have when need to flow, it is judged that flow continuously through the amount of fluid of pipeline 107 whether not less than the Two predetermined values, and/or whether the lasting throughput time of fluid is not less than the 3rd predetermined value, when holding When the amount of the fluid of afterflow piping 107 is not less than the second predetermined value, and/or the continuing of fluid When throughput time is not less than three predetermined values, close inner valve 101.When flowing continuously through pipeline 107 The amount of fluid less than the second predetermined value time, and/or the lasting throughput time of fluid is less than the 3rd During predetermined value, re-start and judge whether the fluid flow that flow measuring probe 102 detects is less than First predetermined value.It is pointed out that the amount of the fluid flowing through pipeline 107 refers to fluid Total amount, this total amount can be volume total amount, it is also possible to be quality total amount.External communications equipment can To be mobile phone.

It addition, in above-mentioned control, the fluid flow detected when flow measuring probe 102 is the least When five predetermined values, the information received again according to communication module 104 judges the stream of fluid Dynamic whether for needing flowing, when the flowing of fluid be not have need to flow time, it is judged that there is leakage, Close inner valve 101；When the flowing of fluid be have need to flow time, it is judged that flow continuously through pipeline 107 The amount of fluid whether not less than the second predetermined value, and/or whether the lasting throughput time of fluid Not less than the 3rd predetermined value, when the amount of the fluid flowing continuously through pipeline 107 makes a reservation for not less than second During value, and/or when the lasting throughput time of fluid is not less than three predetermined values, close inner valve 101.When flowing continuously through the amount of fluid of pipeline 107 less than the second predetermined value, and/or fluid Lasting throughput time less than three predetermined values time, re-start and judge flow measuring probe 102 Whether the fluid flow detected is less than the first predetermined value.

It should be noted that the fluid flow detected when flow measuring probe 102 is pre-less than first During definite value, it may appear that two kinds of situations: the first situation is that fluid does not flows out, the second situation It is that fluid or the most at a slow speed flows out.Need to further judge for belonging to any situation.

Close inner valve 101, the pipeline between inner valve 101 and fluid source 109 can be avoided Fluid in 107 flows in the pipeline 107 between inner valve 101 and terminal valve 108.This Time, the fluid pressure that the first sub-pressure transducer 105 and the second sub-pressure transducer 106 detect Determine by force the fluid pressure between terminal valve 108 and inner valve 101 and inner valve 101 and stream Whether it is more than predetermined pressure the poorest between fluid pressure between body source 109.

Pipeline 107 when being the first situation, between inner valve 101 and terminal valve 108 In fluid remain stationary as, do not produce leakage, between terminal valve 108 and inner valve 101 Fluid pressure between fluid pressure with inner valve 101 with fluid source 109 is equal, or is not more than Predetermined pressure is poor, say, that the fluid pressure between terminal valve 108 and inner valve 101 Do not reduce.Pipe when being the second situation, between inner valve 101 and terminal valve 108 Fluid in road 107 or has flowed out, now inner valve 101 and terminal valve 108 Between pipeline 107 in Fluid Volume can reduce, cause terminal valve 108 and inner valve 101 Between fluid pressure reduce, and fluid pressure between inner valve 101 and fluid source 109 is protected Hold constant, and then make the fluid pressure between terminal valve 108 and inner valve 101 and internal valve The absolute value of the difference of the fluid pressure between door 101 and fluid source 109 is poor more than predetermined pressure, It is to say, the fluid pressure between terminal valve 108 and inner valve 101 reduces；So According to whether whether reduce it may determine that be belonging to the more than predetermined pressure difference or fluid pressure A kind of situation, still falls within the second situation.

Fluid pressure between terminal valve 108 and inner valve 101 and inner valve 101 and stream When the absolute value of the difference of the fluid pressure between body source 109 is more than predetermined pressure difference, or terminal valve When fluid pressure between door 108 and inner valve 101 declines, include again two kinds of situations: first Planting situation is that the fluid in the pipeline 107 between inner valve 101 and terminal valve 108 exists Improper leakage, second case is, terminal valve 108 is normally opened, and fluid normally flows out, Also need to determine whether for belonging to any situation.

Open inner valve 101, make the pipeline 107 between inner valve 101 and terminal valve 108 Connect with the pipeline 107 between inner valve 101 with fluid source 109.Judge flow measuring probe again Whether 102 fluid flows detected are less than the 5th predetermined value, and the 5th predetermined value can set For less than fluid flow during normal use.The fluid flow that flow measuring probe 102 detects is little When five predetermined values, owing to the 5th predetermined value is less than the flow value of fluid during normal use, Then may determine that and belong to the first situation, now close inner valve 101, prevent fluid from continuing leakage Lose.If the fluid flow that flow measuring probe 102 detects is not less than the 5th predetermined value, then may be used Belong to second case to determine, make inner valve 101 remain on, due to the second feelings In shape, the fluid flow that flow measuring probe 102 detects be not less than the 5th predetermined value, therefore when When second case occurs, fluid can be judged according to the information that communication module 104 receives Whether flowing is for needing flowing；Thus realize utilizing the above-mentioned fluid leakage supervising device just can be more Control the break-make of pipeline 107 the most more accurately according to real fluid motion conditions, subtract further The leakage of few fluid.

Also, it should be noted in the present embodiment, the first sub-pressure transducer 105 and the second son Pressure transducer 106 can also be replaced by a differential pressure pickup, say, that pressure detects Module is differential pressure pickup.So can directly measure the pressure difference of fluid, and need not survey respectively Contrast again after amount.In the present embodiment, " the first predetermined value ", " the second predetermined value ", " the Three predetermined values ", " the 4th predetermined value " and " the 5th predetermined value " can set according to actual needs.

When the flowing of fluid need to be flowed for having, can obtain according to flow and time and flow through pipeline The amount of the fluid of 107, pre-not less than second in the amount of the fluid flowing continuously through pipeline 107 every time During definite value, inner valve 101 is made to close by controller 103；Or set the most lasting use The time span of fluid is the 3rd predetermined value, is persistently using time of fluid not less than the every time During three predetermined values, inner valve 101 is made to close by controller 103.

In the present embodiment, fluid leakage supervising device also includes alarm module；Alarm module and control Device 103 processed connects, specifically, alarm module can by wirelessly or non-wirelessly with controller 103 connect；Alarm module for when the flowing of fluid be have need to flow time, and flow continuously through pipe The amount of the fluid in road 107 is not less than the second predetermined value, and/or the lasting throughput time of fluid is not During less than three predetermined values, close inner valve 101, then alert, when warning mould When the warning message of block is released from, open inner valve 101, and rejudge and flow continuously through pipeline Whether the amount of the fluid of 107 is not less than the second predetermined value, and/or the lasting throughput time of fluid is No it is not less than the 3rd predetermined value；It should be noted that the releasing of warning message, it can be mobile phone It is connected with controller 103 by communication module 104, then releases from mobile phone terminal；Also may be used To be released by the artificial valve that closes, in practice one has particular application as this alarm release mode: When user is in shower, if being kept on all shower, when the fluid flowing continuously through pipeline 107 Amount is not less than the second predetermined value, and/or the lasting throughput time of fluid is not less than the 3rd predetermined value Time, fluid leakage supervising device will be judged as forgetting to cut out shower and cut off the water supply；User is in shower Time, mobile phone the most at one's side, goes out the adept machine in bathroom and releases warning or press fluid leakage monitoring dress The reboot button put, this is the most inconvenient；When cutting off the water supply, user only needs in time shower pass Closing, open shower after several seconds again, water will come again.The most both leakage can have been judged in time Exist, can effectively cater to again the demand of client's super large water consumption；This can effectively cater to client The function of super large urban water demand is retray function；When the warning message of alarm module is not released from Time, open inner valve 101, it is judged that the fluid flow that flow measuring probe 102 detects is the least In the 4th predetermined value: when the fluid flow detected is not less than four predetermined values, it is judged that exist Leakage, closes inner valve 101；When the fluid flow detected is less than four predetermined values, weight New judgement flows continuously through whether the amount of the fluid of pipeline 107 is not less than the second predetermined value, and/or Whether the lasting throughput time of fluid is not less than the 3rd predetermined value.It should be noted that can also The flowing judging fluid be not have need to flow time, simultaneously close off inner valve 101 and send warning Information, but now report to the police for leakage.

In the present embodiment, alarm module is additionally operable to after judging to there is leakage, alert.

In the present embodiment, alarm module includes voice guard 111 and/or visual alarm 111. It should be noted that in the present embodiment, alarm module be not only limited to voice guard 111, Visual alarm 111, it is also possible to select the alarm 111 of other form to enter according to practical situation Row is reported to the police.

In the present embodiment, communication module 104 is WIFI transmitting and receiving module and/or Bluetooth transmission Receiver module；Flow measuring probe 102 is pulse flowmeter, specifically, and controller 103 Including CPU 114 and counting unit 112, counting unit 112 can obtain pulse The pulse that effusion meter produces；CPU 114 can obtain according to counting unit 112 Pulse signal determines by the flow of fluid in pipeline 107；Such as: according to counting unit 112 The umber of pulse that unit interval obtains determines the frequency of the pulse that pulse flowmeter produces, and then root again Determine by the fluid flow in pipeline 107 according to this frequency.In the feelings using counting unit 112 Under condition, in each working cycle, need the cumulative flow of single working cycle is zeroed out, As single work can be made when the fluid flow that pulse flowmeter detects is less than the first predetermined value Make the cumulative flow in cycle to reset.Certainly, flow measuring probe 102 is not limited to above-mentioned pulse flow Meter, it is also possible to be the device of other detection fluid flows.It should be noted that communication module 104 can also be gsm module, GPRS module, WCDMA module or LTE module.

By suitable setting, it is possible to so that fluid leakage supervising device has cummulative metering merit Energy.Such as: in the case of pulse flowmeter selected by flow measuring probe 102, central authorities process single Unit 114, before being zeroed out the cumulative flow of single working cycle, preserves each single work Making the cumulative flow in cycle, the cumulative flow sum of all single working cycle is cumulative flow Amount；In the case of other effusion meters selected by flow measuring probe 102, it is also possible to pass through centre The signal that reason unit 114 transmits according to flow measuring probe 102 is to the fluid by pipeline 107 Amount carries out cummulative metering etc..

In the present embodiment, controller 103 also includes comparing unit 113.First sub-pressure sensing Device 105 is connected with comparing unit 113 respectively with the second sub-pressure transducer 106；So, Comparing unit 113 can be to the fluid pressure between terminal valve 108 and inner valve 101 and interior Fluid pressure between valve 101 and fluid source 109 compares, and determines terminal valve 108 And the fluid between fluid pressure and inner valve 101 and fluid source 109 between inner valve 101 The absolute value of the difference of pressure is the poorest more than predetermined pressure, and sends comparative result to centre Reason unit 114.Determine the fluid pressure between terminal valve 108 and inner valve 101 and internal valve Whether the absolute value of the difference of the fluid pressure between door 101 and fluid source 109 is more than predetermined pressure Difference is not only limited to be obtained by which, it would however also be possible to employ other modes determine, such as: can So that pressure difference to be converted into pressure differential, and this pressure differential is utilized to drive predetermined object to move, and then Position according to this predetermined object determines the fluid pressure between terminal valve 108 and inner valve 101 Whether the difference of the fluid pressure by force and between inner valve 101 and fluid source 109 is more than predetermined pressure Difference.

In the present embodiment, also including generate electricity electric power storage electric supply installation and remote controller 110, generate electricity electric power storage Electric supply installation is connected with controller 103, provides electric energy for whole supervising device；Remote controller 110 Being connected with controller 103, remote controller 110 is wirelessly connected with controller 103, enters And supervising device can be missed with remote control fluid.This remote controller can be IR remote controller.

In the present embodiment, if proving to there is not leakage through oneself's detection, it is also possible to by setting Put inner valve 101 and enter the time interval of closed mode to reduce the pass of inner valve 101 next time Close frequency, to reduce the power consumption of device and to extend the service life of inner valve 101.Such as, exist After detecting that between terminal valve 108 and inner valve 101, the pressure of the fluid of part does not declines, Start countdown function, before countdown is zero, terminal valve 108 and inner valve 101 occur Between part fluid flow less than the first predetermined value time, inner valve 101 is not closed；When falling meter Time be zero after, occur between terminal valve 108 and inner valve 101 that the fluid flow of part is less than During the first predetermined value, inner valve 101 can be closed.

This utility model embodiment additionally provides a kind of fluid leakage monitoring method, and the method is permissible The fluid leakage supervising device utilizing the present embodiment to provide is implemented, but is not limited to utilize above-mentioned fluid Leakage supervising device is implemented, it is also possible to implemented by miscellaneous part and unit construction.

In the fluid leakage monitoring method that the present embodiment provides, pipeline 107 is connected fluid source 109, pipeline 107 is provided with terminal valve 108 and inner valve 101, and inner valve 101 Between terminal valve 108 and fluid source 109.

Shown in Figure 2, the method comprises the following steps:

Step S201: judge that the fluid flow between terminal valve 108 and inner valve 101 is No first predetermined value that is less than: the fluid flow between terminal valve 108 and inner valve 101 is little When the first predetermined value, enter step S202, when terminal valve 108 and inner valve 101 it Between fluid flow not less than the first predetermined value time, enter step S207.

Step S202: close inner valve 101.

Step S203: it is then determined that the fluid pressure between terminal valve 108 and inner valve 101 Whether reduce by force: when judging that pressure reduces, enter step S204, when judging that pressure does not drops Time low, enter step S214, enter back into step S201.It should be noted that this step 203 In can also be determined by the fluid pressure between terminal valve 108 and inner valve 101 and internal valve Whether the absolute value of the difference of the fluid pressure between door 101 and fluid source 109 is more than predetermined pressure Difference is carried out: when this absolute value is more than predetermined pressure difference, enter step 204, when this is absolute When value is not more than predetermined pressure difference, carries out step S214, enter back into step S201.

Step S204: open inner valve 101.

Step S205: judge that whether fluid flow is less than the 5th predetermined value: when fluid flow is little When five predetermined values, enter step S206；When fluid flow is not less than five predetermined values, Enter step S207.

Step S206: it is determined that leakage, closes inner valve 101, and alarm 111 sends Warning message.It should be noted that in this step S206, when it is determined that leakage, Being turned on and off of inner valve 101, it is also possible to determine according to practical situation.

Step S207: judge the flowing of fluid whether for needing flowing, when fluid flowing not It is to have when need to flow, enters step S206；When the flowing of fluid be have need to flow time, enter Step S208.

Step S208: judge whether the amount of the fluid flowing continuously through described pipeline 107 is not less than Second predetermined value, and/or whether the lasting throughput time of fluid is not less than the 3rd predetermined value.When When flowing continuously through the amount of fluid of pipeline 107 not less than the second predetermined value, and/or the holding of fluid When continuous throughput time is not less than three predetermined values, enter step S209；When flowing continuously through pipeline When the amount of the fluid of 107 is less than the second predetermined value, and/or the lasting throughput time of fluid is less than the During three predetermined values, enter step S201.

Step S209: close inner valve 101.

Step S210: alert.

Step S211: whether be released from, when warning message is released from, enter if judging to report to the police Step S212；When warning message is not released from, enter step S213.

Step S212: after opening inner valve 101, reenter step S208.

Step S213: open inner valve 101, it is judged that whether fluid flow is less than the 4th predetermined value, When the fluid flow detected is not less than four predetermined values, enter step S206；Work as detection When the fluid flow arrived is less than four predetermined values, reenter step S208.

Step S214: reduce the closedown frequency of inner valve 101.

In sum, this utility model provides fluid leakage supervising device and monitoring method can Keep cost relatively low in the case of, according to the actual motion situation of fluids within pipes, more and Time judge whether pipeline exists fluid leakage situation exactly, it is judged that there is fluid leakage in pipeline After, alternative valve of closing, the timely continuation leakage stoping fluid, it is to avoid various secondary calamities The generation of evil, and then reduce the warp caused because of fluid leakage to family, enterprise and society thereof Ji loss.

It is last it is noted that various embodiments above is only in order to illustrate technical side of the present utility model Case, is not intended to limit；Although this utility model having been carried out in detail with reference to foregoing embodiments Explanation, it will be understood by those within the art that: it still can be to aforementioned each enforcement Technical scheme described in example is modified, or enters the most some or all of technical characteristic Row equivalent；And these amendments or replacement, do not make the essence disengaging of appropriate technical solution The scope of this utility model each embodiment technical scheme.

Claims (10)

1. a fluid leakage supervising device, it is characterised in that include that inner valve, flow are surveyed Measuring device, controller, communication module and pressure detection module；Described inner valve, described flow are surveyed Measuring device, described communication module and described pressure detection module are connected with described controller respectively；Institute State inner valve for being arranged on pipeline, and described inner valve be positioned at terminal valve and fluid source it Between, to control connection or the disconnection of described pipeline；Described flow measuring probe is used for detecting described end Fluid flow between end valve door and described inner valve；Described pressure detection module is used for detecting institute State the fluid pressure between terminal valve and described inner valve, and described inner valve and described stream Fluid pressure between body source；Described communication module is used for and peripheral communications；Described control Device is for the fluid flow detected according to described flow measuring probe, the inspection of described pressure detection module The information that the fluid pressure measured, described communication module receive controls the unlatching of described inner valve Or close.

Fluid leakage supervising device the most according to claim 1, it is characterised in that also Including alarm module；Described alarm module is connected with described controller.

Fluid leakage supervising device the most according to claim 1 and 2, it is characterised in that Described pressure detection module is differential pressure pickup.

Fluid leakage supervising device the most according to claim 1 and 2, it is characterised in that Described pressure detection module includes the first sub-pressure transducer and the second sub-pressure transducer.

Fluid leakage supervising device the most according to claim 2, it is characterised in that institute State alarm module and include voice guard and/or visual alarm.

Fluid leakage supervising device the most according to claim 1 and 2, it is characterised in that Described communication module is WIFI transmitting and receiving module and/or Bluetooth transmission receiver module.

Fluid leakage supervising device the most according to claim 1 and 2, it is characterised in that Described communication module is gsm module, GPRS module, WCDMA module or LTE module.

Fluid leakage supervising device the most according to claim 1 and 2, it is characterised in that Described flow measuring probe is pulse flowmeter.

Fluid leakage supervising device the most according to claim 1 and 2, it is characterised in that Also including the electric power storage electric supply installation that generates electricity, described generating electric power storage electric supply installation is with described controller even Connect.

Fluid leakage supervising device the most according to claim 1 and 2, it is characterised in that Also include that remote controller, described remote controller are connected with described controller.