CN202946928U - Fluid loss monitoring device - Google Patents
Fluid loss monitoring device Download PDFInfo
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- CN202946928U CN202946928U CN 201220613143 CN201220613143U CN202946928U CN 202946928 U CN202946928 U CN 202946928U CN 201220613143 CN201220613143 CN 201220613143 CN 201220613143 U CN201220613143 U CN 201220613143U CN 202946928 U CN202946928 U CN 202946928U
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Abstract
The utility model discloses a fluid loss monitoring device which comprises an inner valve arranged on a pipeline, a fluid flow measuring device, a pressure detecting element and a controller. The flow measuring device is used for measuring partial fluid between a terminal valve and the inner valve. The pressure detecting element is used for detecting pressure of the inner side and the outer side of the inner valve. The controller controls the inner valve based on a preset strategy. The strategy includes that when a detected flow of the flow measuring device is less than a first preset value, the inner valve is closed. Whether pressure of the partial fluid between the terminal valve and the inner valve is reduced or not is confirmed based on a detecting signal of the pressure detecting element. If the pressure is judged to be low, the inner valve is opened and then a detected flow by the flow measuring device is less than a preset threshold or not is judged, if the detected flow by the flow measuring device is less than the preset threshold, the inner valve is closed and an alarm is given. The fluid loss monitoring device can accurately control on-off of the pipeline based on an actual fluid flow with low cost.
Description
Technical field
The utility model relates to a kind of fluid monitoring technology, particularly relates to a kind of fluid loss supervisory device.
Background technique
In daily life and industrial processes, usually lay suitable pipeline, to control the flow direction of water, oil or other fluids.Control for convenient, satisfy the real life need of production, common mounted valve on pipeline is to control flowing of fluid; Open valve, fluid can be flowed, throttle down makes fluid stop flowing.Although can control flowing of fluid by valve, valve has certain sealability, and valve seal may reduce because of wearing and tearing after using a period of time.Therefore, in the situation that the valve seal hydraulic performance decline, even valve closing, fluid also can flow by valve, causes the improper loss of fluid.
In order to confirm or to control fluid flow, usually be provided with flow control device on pipeline.As in water supply pipe, water flow control device is installed usually, according to the water flow by pipeline, control the break-make of pipeline.Water flow control device is provided with the measuring water flow part usually, work as valve open, current water flow measure portion, current can drive the vane rotary of measuring water flow part, can determine water flow by water flow control device according to the speed of vane rotary, according to the through-flow time, can measure the volume of the water of outflow again, realize the measurement to the water yield; Again according to the break-make of the data that measure to obtain and predetermined policy control water supply pipe (when reaching predetermined value as the volume of the water that flows out, cut off current, etc.).
But, sealability reduction when valve, when perhaps the artificial origin initiatively reduces water flow, the current that flow through water flow measuring device are very little, the energy shortage of current is to drive the vane rotary of water flow measuring device, water flow measuring device just can not be measured the water that flows through, and causes inaccurate to measuring water flow; And then flow control device can't be controlled according to the water flow of reality the break-make of water supply pipe, the improper loss of formation water.In prior art, although can pass through the accuracy of manufacturing of the impeller of raising water flow measuring device, reduce the needed energy of drives impeller rotation, reduce the initial-flow of water flow measuring device, but this increases considerably with regard to the manufacture cost that makes water flow control device, can not satisfy actual demand.The Chinese patent literature CN202149794U(patent No.: ZL201120277718.7) disclose another kind of water flow measuring device, this device forms by the energy of concentrated flow the initial-flow that jet reduces water flow measuring device, but still need an energy to come the drives impeller rotation, and then the initial-flow of flow measuring device is further reduced.
Therefore, how keeping controlling more accurately the break-make of pipeline according to actual fluid flow in lower-cost situation, be the problem that those skilled in the art need to solve.
The model utility content
The purpose of this utility model is to provide a kind of fluid loss supervisory device, and this device can keeping controlling more accurately the break-make of pipeline according to actual fluid flow in lower-cost situation, reduce or avoid the improper loss of fluid.
The fluid loss supervisory device that the utility model provides comprises interior valve, flow measuring probe, controller and pressure Detecting element; Described interior valve is arranged on pipeline, and is positioned at the inboard of terminal valve, is used for controlling the break-make of described pipeline; Described flow measuring probe is for detection of the fluid flow of part between described terminal valve and interior valve; Described pressure Detecting element is for detection of the pressure of the fluid of part between described terminal valve and interior valve;
Described controller is used for the testing signal according to flow measuring probe, testing signal and the predetermined policy of pressure Detecting element controlled described interior valve:
Described predetermined policy comprises: during less than the first predetermined value, close described interior valve at the detection flow of flow measuring probe; Then determine according to the testing signal of pressure Detecting element whether the pressure of the fluid of part between described terminal valve and interior valve reduces; When judgement pressure reduces, open interior valve; Whether judge again the detection flow of flow measuring probe less than predetermined threshold, during less than predetermined threshold, close described interior valve at the detection flow of flow measuring probe.
Preferably, described pressure Detecting element is the pressure transducer that is arranged between described terminal valve and described interior valve.
Preferably, described pressure Detecting element is two pressure transducers that are separately positioned on inboard and the outside of described interior valve;
Or
Described pressure Detecting element is the differential pressure pickup for the difference of the pressure in the inboard of surveying described interior valve and the outside.
Preferably, described predetermined policy also comprises:
Detection flow at flow measuring probe is not less than the first predetermined value, and the Continuous-flow amount of crossing the fluid of described pipeline is closed described interior valve when reaching the second predetermined value;
And/or
Detection flow at flow measuring probe is not less than the first predetermined value, and lasting through-flow time of fluid when reaching the 3rd predetermined value, closes described interior valve.
Preferably, also can comprise alarm, described alarm is connected with controller; Respectively at the detection flow of flow measuring probe during less than predetermined threshold, when the amount that Continuous-flow is crossed the fluid of described pipeline reaches the second predetermined value, the lasting through-flow time of fluid, when reaching the 3rd predetermined value, described controller sent alarm signal to alarm, makes alarm equipment alarm.
Preferably, also comprise the generating electric accumulator, described electric accumulator provides energy for whole supervisory device.
Preferably, described controller comprises central processing unit and counting unit, and described counting unit is used for obtaining the signal that flow measuring probe produces, and the signal that described central processing unit is obtained according to counting unit is determined the fluid flow by described pipeline.
The fluid loss supervisory device that the utility model provides comprises interior valve, flow measuring probe, pressure Detecting element and controller; Described interior valve is arranged on pipeline, and is positioned at the inboard of terminal valve, is used for controlling the break-make of described pipeline, and flow measuring probe is for detection of the fluid flow of part between described terminal valve and interior valve; Described pressure Detecting element is for detection of the pressure of the fluid of part between described terminal valve and interior valve.During less than the first predetermined value, two kinds of situations are arranged at the detection flow of flow measuring probe, the first situation is, fluid does not flow out, and the terminal valve seal is good, and the second situation is, fluid or flows out at a slow speed, and the terminal valve may seal bad, and then needs further judgement.Then close described interior valve, avoid fluid by the outside of interior valve flows inside to interior valve.Then determine according to the testing signal of pressure Detecting element whether the pressure of the fluid of part between described terminal valve and interior valve reduces; If be above-mentioned the first situation, the ducted fluid of internal valve outer side of door keeps motionless, does not produce and runs off, and between terminal valve and interior valve, the pressure of the fluid of part does not reduce; If be above-mentioned the second situation, the ducted fluid of internal valve outer side of door or flows out, and the ducted Fluid Volume of internal valve outer side of door this moment can reduce, and causes the pressure of fluid in internal valve outer side of door pipeline to reduce.So just can judge the first situation that belongs to, still belong to the second situation.Between terminal valve and interior valve, the reduction of the fluid pressure of part might comprise again two kinds of situations, the first situation is, there is improper loss in the ducted fluid of internal valve outer side of door, second case is, the reduction of pressure is because the terminal valve is normally opened, the normal outflow of fluid causes, therefore also needs further judgement.Open interior valve, more whether the detection flow that judges flow measuring probe is less than predetermined threshold; At the detection flow of flow measuring probe during less than predetermined threshold, the flow value of fluid during less than normal the use, can determine to belong to the first situation due to this predetermined threshold, closes described interior valve this moment; If the detection flow of flow measuring probe is not less than predetermined threshold, can determine to belong to second case, make interior valve stay open state.Utilize this fluid loss supervisory device just can control more accurately the break-make of pipeline according to actual fluid flow.Flow measuring probe and pressure Detecting element that the fluid loss supervisory device that the utility model provides is used all do not need to have very high precision, and then are keeping just can controlling more accurately according to actual fluid flow the break-make of pipeline in lower-cost situation.
In further technological scheme, also comprise alarm, can be connected by wired mode or wireless mode between described alarm and controller, respectively at the detection flow of flow measuring probe during less than predetermined threshold, when the amount that Continuous-flow is crossed the fluid of described pipeline reaches the second predetermined value, the lasting through-flow time of fluid, when reaching the 3rd predetermined value, described controller sent alarm signal to alarm, makes alarm equipment alarm.Like this, when the terminal valve seal damages or caused the improper loss of fluid by other reasons, can warn by alarm, so that corresponding part is in time safeguarded.
In further technological scheme, also can comprise the generating electric accumulator, described electric accumulator provides energy for whole supervisory device.
Description of drawings
Fig. 1 is the working principle schematic diagram of the fluid loss supervisory device that provides of the utility model.
Fig. 2 is the method for work flow chart of the fluid loss supervisory device that provides of the utility model.
Embodiment
Core of the present utility model is: by the pressure of the fluid of part between sense terminals valve and interior valve, again in conjunction with fluid flow, can realize accurate judgement and control to pipeline conditions, whether whether the quantitative judgement of fluid flow is converted into pressure reduces with fluid flow less than the qualitative judgement of predetermined threshold, and then can overcome the deficiency that has now in quantitative measurement technology, improve Accuracy of Judgement.
Below in conjunction with accompanying drawing, the technological scheme that the utility model provides is described in detail, the description of this part is only exemplary and explanatory, should not be considered as the restriction to the utility model public technology content.
Should be noted that: in presents, described inboard refers on the pipeline bearing of trend, a side of close fluid source, and the described outside refers on the pipeline bearing of trend, away from a side of fluid source.
Please refer to Fig. 1, the figure shows the working principle schematic diagram of a kind of fluid loss supervisory device that the utility model provides.
For the convenience of describing, also show pipeline 100 and terminal valve 110 in figure, pipeline 100 is inner to communicate with fluid source, the part of the close outer end of pipeline 100 is equipped with the particular location of terminal valve 110(terminal valve 110 and can determines according to actual needs).Pipeline 100 forms the passage of fluid, and the switching of terminal valve 110 can be controlled the break-make of the fluid in pipeline 100.The fluid loss supervisory device that the utility model provides comprises interior valve 230, flow measuring probe 220 and two pressure transducers 241 and 242, also comprises controller 210.Interior valve 230 is arranged on pipeline 100, and is positioned at the inboard of the terminal valve 110 of pipeline 100; The switching of interior valve 230 also can be controlled the break-make of the fluid in pipeline 100; The normality of interior valve 230 can be open mode.Flow measuring probe 220 is for detection of the fluid flow that passes through in pipeline 100.Two pressure transducers 241,242 are arranged on pipeline, and its Check point lays respectively at inboard and the outside of interior valve 230, and then the pressure of valve 230 interior side liquids and the pressure of outer side liquid in detecting respectively.In the present embodiment, flow measuring probe 220 is arranged between terminal valve 110 and interior valve 230, for detection of the fluid flow of part between terminal valve 110 and interior valve 230.The switching of valve 230 in controller 210 is used for controlling according to flow measuring probe 220, two pressure transducers 241,242 testing signal and predetermined policy.
In the present embodiment, the predetermined policy of controller 210 can comprise: during less than the first predetermined value, close interior valve 230 at the detection flow of flow measuring probe 220; Then whether there is pressure difference between the inboard of valve 230 and the outside in determining according to two pressure transducers 241,242 testing signal; When there is pressure difference in judgement, open interior valve 230; Whether judge again the detection flow of flow measuring probe 220 less than predetermined threshold, during less than predetermined threshold, close interior valve 230 at the detection flow of flow measuring probe.
The monitoring principle of above-mentioned predetermined policy is:
During less than the first predetermined value, two kinds of situations are arranged at the detection flow of flow measuring probe 220: the first situation is, fluid does not flow out, and the second situation is that fluid or flows out at a slow speed; And then need further to judge.
Close interior valve 230, can avoid fluid by the outside of interior valve 230 flows inside to interior valve 230.At this moment, whether there is pressure difference between the inboard of valve 230 and the outside then in determining according to two pressure transducers 241,242 testing signal.If be above-mentioned the first situation, the interior valve 230 ducted fluids in the outside keep motionless, produce and run off, and between the inboard of interior valve 230 and the outside, pressure equates, does not have pressure difference.If be above-mentioned the second situation, the interior valve 230 ducted fluids in the outside or flow out, and in this moment, the valve 230 ducted Fluid Volumes in the outside can reduce, and cause interior valve 230 outside pressure to reduce; Simultaneously, valve 230 is inboard communicates with fluid source, and pressure remains unchanged, and then makes between the inboard of interior valve 230 and the outside and have pressure difference.Like this, according to whether existing pressure difference just can judge the first situation that belongs to, still belong to the second situation.
Exist pressure difference might comprise again two kinds of situations between the inboard of interior valve 230 and the outside: the first situation is, there is improper loss in the interior valve 230 ducted fluids in the outside, and second case is that terminal valve 110 is normally opened, fluid normally flows out, and then also needs further judgement.
At this moment, open interior valve 230, interior valve 230 inboards and external lateral portion are communicated with.Whether judge again the detection flow of flow measuring probe 220 less than predetermined threshold, the flow value of fluid when this predetermined threshold can be set as less than normal the use.The detection flow of flow measuring probe 220 is during less than predetermined threshold, and the flow value of fluid during less than normal the use, can determine to belong to the first situation due to this predetermined threshold, and close interior valve 230 this moment, prevents the improper loss of fluid.If the detection flow of flow measuring probe 220 is not less than predetermined threshold, can determine to belong to second case, make interior valve 230 stay open state.
Utilize above-mentioned fluid loss supervisory device just can control more accurately the break-make of pipeline according to actual fluid flow.The fluid loss supervisory device that this example provides, flow measuring probe 220 and pressure transducer 241,242 all do not need to have very high precision, and then are keeping just can controlling more accurately according to actual fluid flow the break-make of pipeline in lower-cost situation.
Wherein, two pressure transducers 241,242 can be replaced by a differential pressure pickup, can directly measure pressure reduction like this, and compare after need not measuring respectively again.
According to foregoing description, the first predetermined value can be set according to actual needs, can be for zero (this null value can be flow measuring probe 220 without the flow indication value), also can be the initial-flow of flow measuring probe 220, etc.; Predetermined threshold can be equal with the first predetermined value, also can be unequal.
Controller 210 also can be with the switching of valve 230 in other policy control.As: generally, the volume of the fluid that Continuous-flow is crossed is not more than the second predetermined value, when the volume of the fluid of crossing when Continuous-flow reaches the second predetermined value, can think undesired use to produce improper loss.At this moment, control strategy can be: when flow measuring probe 220 detection flows are not less than the first predetermined value, the volume of the fluid that can obtain to flow through according to flow and time, when the volume of the fluid that flows through each (or continuing) reaches the second predetermined value, by controller 210, interior valve 230 is closed.Can also set the time span that once continues the use fluid is the 3rd predetermined value.Control strategy can be: when flow measuring probe 220 detection flows are not less than the first predetermined value, when each (or continuing) uses the time of fluid to be not less than the 3rd predetermined value, can think undesired use to produce improper loss, by controller 210, interior valve 230 be closed.Certainly, also can utilize controller 210, with valve 230 in other policy control.
In the embodiment that the utility model provides, can also comprise alarm 250, can be connected by wired or wireless mode between alarm 250 and controller 210.Like this, at the detection flow of flow measuring probe 220 during less than predetermined threshold, illustrate to have terminal valve 110 bad seals or other reasons and cause the improper loss of fluid, controller 210 can send alarm signals to alarm 250, make alarm equipment alarm, in time safeguard to remind the related personnel.Certainly, when the volume of the fluid that also can cross at a Continuous-flow is not less than the second predetermined value, perhaps, when once continuing to use the time span of fluid to be not less than the 3rd predetermined value, make controller 210 send alarm signals to alarm 250.
In the fluid loss supervisory device that the utility model embodiment provides, flow measuring probe 220 is selected the pulse flow measuring meter; Corresponding, controller 210 comprises central processing unit 211 and counting unit 213, and counting unit 213 can be obtained the pulse that the pulse flow measuring meter produces; Central processing unit 211 can determine to pass through according to the pulse signal that counting unit 213 is obtained the flow of fluid in pipeline 100; Such as: determine the frequency of the pulse that flow measuring meter produces according to the umber of pulse that 213 unit time of counting unit obtain, and then determine to pass through again the flow of fluid in pipeline according to this frequency.In the situation that usage count unit 213 in each operation cycle, need to carry out zero clearing to counting unit 213, as can during less than the first predetermined value, making counting unit 213 zero clearings at the detection flow of flow measuring probe 220.Certainly, flow measuring probe 220 is not limited to above-mentioned pulse flow measuring meter, can be also the device of other test fluid flows.
By suitable setting, also can make flow lose supervisory device and have the cumulative measurement function.Such as: in the situation that flow measuring probe 220 is selected the pulse flow measuring meter, the accumulated counts unit can also be set, and then the amount that the signal convection cell that central processing unit 211 is transmitted according to the accumulated counts unit flows through adds up; In the situation that flow measuring probe 220 is selected other flow measuring meters, the signal that also can transmit according to flow measuring probe 220 by central processing unit 211 carries out cumulative measurement to the amount of the fluid by pipeline, etc.
In this example, controller 210 also comprises comparing unit 212.And pressure transducer 241,242 all is connected with comparing unit 212; Like this, comparing unit 212 internally inboard and the outside pressure of valve 230 compares, and whether has pressure difference between the inboard of valve 230 and the outside in determining, and sends comparative result to central processing unit 211.Whether exist pressure difference to be not limited to obtain by this mode between the inboard of valve 230 and the outside in determining, also can adopt other modes to determine, such as: pressure difference can be converted into pressure difference, and utilize this pressure difference to drive predetermined movement of objects, and then according to whether having pressure difference between the inboard of valve 230 in the location positioning of this predetermined object and the outside, perhaps directly adopt differential pressure pickup, directly whether output exists the signal of pressure difference, etc.
Setting for convenient above-mentioned each predetermined value facilitates the control of convection cell loss supervisory device, and supervisory device can also comprise remote controller 260, and remote controller 260 is connected with controller 210 by wireless mode, and then can remote control fluid loss supervisory device; Certainly, controller 210 also can send corresponding signal to remote controller 260 according to predetermined strategy, make remote controller 260 carry out respective feedback according to the corresponding signal of controller 210, such as corresponding state of a control can being presented on remote controller 260 in a predetermined manner, etc.
In this example, fluid loss supervisory device also can comprise generating electric accumulator (not shown), and described electric accumulator provides energy for whole supervisory device.
And, if detect proof terminal valve 110 favorable sealing properties through the oneself, the time lag that can also next time enter by interior valve is set closed condition is reduced the frequency of closing of interior valve, with the power consumption that reduces device and the working life that extends interior valve.
As, after the pressure of the fluid that part detected between terminal valve and interior valve does not descend, starting countdown function, countdown is before zero, when occurring between terminal valve and interior valve partly fluid flow less than the first predetermined value, interior valve is not related to and closes; After countdown was zero, when occurring between terminal valve and interior valve partly fluid flow less than the first predetermined value, interior valve can be closed.
In addition, whether the present embodiment also can adopt in the mode that a pressure transducer is set between terminal valve and interior valve and come between sense terminals valve and interior valve the pressure of the fluid of part to reduce, when interior valve is in closed condition, if fluid flows out from the terminal valve, can cause the Fluid Volume between terminal valve and interior valve to reduce, and then cause pressure to reduce.The measured numerical value of pressure transducer this moment just can decrease, and therefore just can draw the judgement that fluid flows out.Pressure can be converted into pressure equally, and utilize this pressure-driven to be scheduled to movement of objects, and then whether reduce according to the pressure of the fluid of part between the location positioning terminal valve of this predetermined object and interior valve, step afterwards is identical with the mode that two pressure transducers are set.
Another embodiment of the present utility model provides a kind of fluid loss monitoring method, the method can utilize above-mentioned fluid loss supervisory device to implement, but be not limited to utilize above-mentioned fluid loss supervisory device to implement, also can implement by miscellaneous part and component combination.For the convenience of describing, be convenient to understand, below the reference character of part continue to use the reference character of each several part shown in Figure 1.
Please refer to Fig. 2, this illustrates the flow chart of the fluid loss monitoring method that the utility model provides.
In the fluid loss monitoring method that provides, monitored pipeline is connected with fluid source, and the terminal valve is installed.Below this monitoring method is described, because its monitoring principle is identical with the monitoring principle of above-mentioned fluid loss supervisory device, for monitoring principle, repeat no more.
Method comprises the following steps:
Step S210: judge that whether the fluid flow of part between terminal valve and interior valve is less than the first predetermined value; If so, two kinds of situations are arranged: the first situation is, fluid does not flow out, and the second situation is that fluid or flows out at a slow speed; And then need further judgement, enter step S220.Can judge that according to the testing result of flow measuring probe 220 whether the fluid flow of part between terminal valve and interior valve is less than the first predetermined value.
Step S220: close interior valve.
Step S230: between sense terminals valve and interior valve, whether the pressure of the fluid of part descends.If not, belong to the first situation, do not move.If so, belong to the second situation; Pressure descends again two kinds of situations: the first situation is, there is improper loss in the ducted fluid of internal valve outer side of door, and second case is, the terminal valve is normally opened, and fluid normally flows out, and then also needs further judgement, enters step S240.
Step S240: open interior valve.
Step S250: judge that whether the fluid flow of part between terminal valve and interior valve is less than predetermined threshold.If not, belong to second case, do not move, think that fluid is without loss.If so, belong to the first situation, enter step S260.
Step S260: with interior valve closing, stop the fluid outflow.
In step S230,
Can adopt the mode that a pressure transducer is set between terminal valve and interior valve, judge directly by actual measurement pressure whether the pressure between terminal valve and interior valve reduces.
Separately can adopt the mode of two pressure transducers or a differential pressure pickup, by the pressure of the fluid of part between terminal valve and interior valve and the pressure of the inboard fluid of interior valve are compared, judge whether to exist pressure reduction, be considered as pressure decline if exist.
After the pressure that the fluid of part between terminal valve and interior valve detected does not descend, can also enter step S270.
Step S270: valve closing frequency in reducing.
In addition, in step S210, if when the fluid flow of judgement by pipeline 100 is not less than the first predetermined value, can also enter step S280.
In step S280, judge whether the amount of the fluid of Continuous-flow piping 100 reaches the second predetermined value, judge perhaps whether the lasting through-flow time of fluid reaches the 3rd predetermined value, if so, think and satisfy predetermined condition, with interior valve closing.If not, illustrate that fluid normally flows out, do not move.
Certainly, above-mentioned the first predetermined value can be zero, and the first predetermined value and predetermined threshold can equate, also can be unequal.
Used specific case herein the technological scheme that the utility model provides is set forth, above embodiment's explanation just is used for helping to understand the technological scheme that the utility model provides.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model; These improvement and modification also fall in the protection domain of the utility model claim.
Claims (7)
1. a fluid loss supervisory device, is characterized in that, comprises interior valve, flow measuring probe, controller and pressure Detecting element; Described interior valve is arranged on pipeline, and is positioned at the inboard of terminal valve, is used for controlling the break-make of described pipeline; Described flow measuring probe is for detection of the fluid flow of part between described terminal valve and interior valve; Described pressure Detecting element is for detection of the pressure of the fluid of part between described terminal valve and interior valve;
Described controller is used for the testing signal according to flow measuring probe, testing signal and the predetermined policy of pressure Detecting element controlled described interior valve.
2. fluid loss supervisory device according to claim 1, is characterized in that,
Described pressure Detecting element is the pressure transducer that is arranged between described terminal valve and described interior valve.
3. fluid loss supervisory device according to claim 1, is characterized in that,
Described pressure Detecting element is two pressure transducers that are separately positioned on inboard and the outside of described interior valve.
4. fluid loss supervisory device according to claim 1, is characterized in that,
Described pressure Detecting element is the differential pressure pickup for the difference of the pressure in the inboard of surveying described interior valve and the outside.
5. fluid loss supervisory device according to claim 1, is characterized in that, also comprise alarm, described alarm is connected with controller; Respectively at the detection flow of flow measuring probe during less than predetermined threshold, when the amount that Continuous-flow is crossed the fluid of described pipeline reaches the second predetermined value, the lasting through-flow time of fluid, when reaching the 3rd predetermined value, described controller sent alarm signal to alarm, makes alarm equipment alarm.
6. fluid loss supervisory device according to claim 1, is characterized in that, also comprises the generating electric accumulator, and described electric accumulator provides energy for whole supervisory device.
7. the described fluid loss of according to claim 1 to 6 any one supervisory device, it is characterized in that, described controller comprises central processing unit and counting unit, described counting unit is used for obtaining the signal that flow measuring probe produces, and the signal that described central processing unit is obtained according to counting unit is determined the fluid flow by described pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613143 CN202946928U (en) | 2012-07-23 | 2012-11-19 | Fluid loss monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210256213.1 | 2012-07-23 | ||
| CN2012102562131A CN102748587A (en) | 2012-07-23 | 2012-07-23 | Device and method for monitoring pipeline fluid |
| CN 201220613143 CN202946928U (en) | 2012-07-23 | 2012-11-19 | Fluid loss monitoring device |
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| CN202946928U true CN202946928U (en) | 2013-05-22 |
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| CN2012102562131A Pending CN102748587A (en) | 2012-07-23 | 2012-07-23 | Device and method for monitoring pipeline fluid |
| CN 201220613143 Expired - Fee Related CN202946928U (en) | 2012-07-23 | 2012-11-19 | Fluid loss monitoring device |
| CN201210470131.7A Active CN102913758B (en) | 2012-07-23 | 2012-11-19 | Fluid loss monitoring device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913758A (en) * | 2012-07-23 | 2013-02-06 | 刘金玉 | Fluid loss monitoring device and method |
| CN113432667A (en) * | 2021-05-21 | 2021-09-24 | 中广核研究院有限公司 | Liquid level measuring device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105628114A (en) * | 2016-01-06 | 2016-06-01 | 朱小菊 | Bernoulli intelligent water meter |
| CN105782728B (en) * | 2016-04-29 | 2018-07-13 | 刘金玉 | A kind of fluid leakage monitoring device and monitoring method |
| CN105865531A (en) * | 2016-06-06 | 2016-08-17 | 无锡市翱宇特新科技发展有限公司 | Pipeline flow monitoring system |
| CN107893909B (en) * | 2017-11-10 | 2023-09-12 | 九牧厨卫股份有限公司 | Safety water monitor and safety water monitoring method |
| CN107831798B (en) * | 2017-11-15 | 2021-08-06 | 无锡鼎加弘思饮品科技有限公司 | Early warning system and early warning method for realizing pressure control by utilizing flowmeter pulse |
| CN108007515A (en) * | 2017-11-29 | 2018-05-08 | 鄂州市泽瑞高科分质供水工程有限公司 | Flow detector, method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102748587A (en) * | 2012-07-23 | 2012-10-24 | 刘金玉 | Device and method for monitoring pipeline fluid |
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- 2012-11-19 CN CN 201220613143 patent/CN202946928U/en not_active Expired - Fee Related
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913758A (en) * | 2012-07-23 | 2013-02-06 | 刘金玉 | Fluid loss monitoring device and method |
| CN102913758B (en) * | 2012-07-23 | 2014-11-12 | 刘金玉 | Fluid loss monitoring device and method |
| CN113432667A (en) * | 2021-05-21 | 2021-09-24 | 中广核研究院有限公司 | Liquid level measuring device and method |
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| Publication number | Publication date |
|---|---|
| CN102913758B (en) | 2014-11-12 |
| CN102913758A (en) | 2013-02-06 |
| CN102748587A (en) | 2012-10-24 |
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