CN108105450A - Ultrasonic wave water leakage monitoring protector and its monitoring method - Google Patents
Ultrasonic wave water leakage monitoring protector and its monitoring method Download PDFInfo
- Publication number
- CN108105450A CN108105450A CN201711356344.6A CN201711356344A CN108105450A CN 108105450 A CN108105450 A CN 108105450A CN 201711356344 A CN201711356344 A CN 201711356344A CN 108105450 A CN108105450 A CN 108105450A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic wave
- ball valve
- water
- wave water
- leakage monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 230000001012 protector Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
- F16K31/055—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation for rotating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Measuring Volume Flow (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of ultrasonic wave water leakage monitoring protectors, belong to water leakage monitoring fixture technology field.Pipeline including being provided with inlet and outlet, ultrasonic sensor and electrical ball valve are equipped in the pipeline, the one side of water inlet is provided with flow adjusting device in ultrasonic sensor, pipeline is provided outside the controller that control electrical ball valve opens and closes, and ultrasonic sensor and electrical ball valve are electrically connected with the controller respectively.The beneficial effects of the invention are as follows：Ultrasonic wave water leakage monitoring protector structure design is reasonable, easy to install, good reliability, when monitoring that pipeline leak occurs, can remind user and automatic shutoff protection in time.
Description
Technical field
The present invention relates to a kind of ultrasonic wave water leakage monitoring protectors, belong to water leakage monitoring fixture technology field.
Background technology
Usually since water pipe aging, leakage, rupture, tap are not fastened or forget the fortuitous events such as pass in real life
There is leak, water resource waste, water rate is on the one hand caused to increase, can endanger building when on the other hand serious causes house to destroy
And property loss, especially at house compact district, one leak may be closed on and lower floor's multiple-unit causes damages, to resident's
Daily life is made troubles.In places such as high-grade hotels, probably due to water pipe explosion causes floods, wine thus or is seriously destroyed
High-grade facility in shop, such situation occur repeatedly in actual life, therefore the monitoring of leak is highly desirable to, early to find early
Solution avoids hidden danger from expanding, and water leakage monitoring equipment is come into being.
Water leakage monitoring equipment of the prior art is mostly formed using the advanced component of the high cost of high-precision, of high cost, uncomfortable
It in average family daily demand, and easily damages, safeguards and replace inconvenience.Present invention seek to address that this technical problem.
The content of the invention
It is an object of the invention to solve the deficiencies in the prior art, a kind of ultrasonic wave water leakage monitoring protector is provided, this is super
The design of sound wave water leakage monitoring protector structure is reasonable, easy to install, good reliability, when monitoring that pipeline leak occurs,
User and automatic shutoff protection can be reminded in time.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of ultrasonic wave water leakage monitoring protector, the pipeline including being provided with inlet and outlet are equipped in the pipeline
Ultrasonic wave water flow sensor and electrical ball valve are provided with flow tune in ultrasonic wave water flow sensor close to the one side of water inlet
Engagement positions, pipeline are provided outside the controller that control electrical ball valve opens and closes, ultrasonic wave water flow sensor and electric ball
Valve is electrically connected with the controller respectively.
Preferably, the electrical ball valve is manual-automation integrated electric ball valve, and the manual-automation integrated electric ball valve includes ball valve sheet
Body and driving motor, the valve rod of the ball valve body are equipped with ball valve gear, and driving motor output shaft is equipped with motor gear, ball valve tooth
Wheel and motor gear engagement, driving motor are electrically connected with the controller by touch-switch, on the outside of the valve rod of the ball valve body also
Equipped with manual actuation part.
Preferably, the flow adjusting device is the shutoff valve with rated pressure difference, and the shutoff valve is axially arranged with
At least one flow adjustment orifice.
Preferably, cover being additionally provided with outside the manual-automation integrated electric ball valve, the cover is made of protecgulum and rear cover,
It is detachably connected between front/rear cover.
Preferably, the valve rod of the manual-automation integrated electric ball valve, which is located on the downside of ball valve gear, is removably connected with fixing piece,
The driving motor is fixed by motor cabinet and fixing piece, and controller is fixed at fixing piece side.
Preferably, the manual actuation part is equipped with several lug bosses vertically.
Preferably, the driving motor is clamped with motor cabinet, and motor cabinet is spirally connected with fixing piece.
The monitoring method of ultrasonic wave water leakage monitoring protector of the present invention, its step are as follows：
Step 1：When user's water, the current in pipeline circulate, and current pass through ultrasonic wave water flow sensor, work as current
After amount is more than ultrasonic wave water flow sensor initial-flow, controller water flow detection module detects current water flow, and root
This water consumption is calculated according to the current duration, then judges to leak when this water consumption is more than and limits single maximum water consumption
Electrical ball valve is closed in water, controller control；
Step 2：When user stops with water, when pipeline is in leak state, current pass through ultrasonic wave water flow sensor, work as water
After flow is more than ultrasonic wave water flow sensor initial-flow, controller calculates according to water flow and current duration and uses water
Amount when water consumption is more than to limit water then to judge leak, and closes electrical ball valve.
Preferably, the sensitivity of the ultrasonic wave water flow sensor can meet the small stream detected more than initial-flow
Amount.
The beneficial effects of the invention are as follows：Ultrasonic wave water leakage monitoring protector structure design is reasonable, easy to install, can
It is good by property, when monitoring that pipeline leak occurs, user and automatic shutoff protection can be reminded in time.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of manual-automation integrated electric ball valve in Fig. 1.
In figure：1st, shutoff valve, 2, manual-automation integrated electric ball valve, 21, ball valve body, 22, driving motor, 23, touch out
It closes, 24, fixing piece, 25, ball valve gear, 26, motor gear, 27, motor cabinet, 3, ultrasonic wave water flow sensor, 4, control
Device.
Specific embodiment
Below by specific embodiment, and with reference to attached drawing, technical scheme is described in further detail.
Embodiment：
A kind of ultrasonic wave water leakage monitoring protector as shown in Figure 1, the pipeline including being provided with inlet and outlet are described
Ultrasonic wave water flow sensor 3 and electrical ball valve are equipped in pipeline, in ultrasonic wave water flow sensor 3 close to the one side of water inlet
Flow adjusting device is provided with, pipeline is provided outside the controller 4 that control electrical ball valve opens and closes, and ultrasonic wave water flow passes
Sensor 3 and electrical ball valve are electrically connected respectively with controller 4.
Specific to the present embodiment, the electrical ball valve be manual-automation integrated electric ball valve 2, the manual-automation integrated electric ball valve 2
Including ball valve body 21, driving motor 22, the valve rod of the ball valve body 21 is equipped with ball valve gear 25,22 output shaft of driving motor
Equipped with motor gear 26, ball valve gear 25 and motor gear 26 engage, and driving motor 22 passes through 4 electricity of touch-switch 23 and controller
Connection, the valve rod outside of the ball valve body 21 are additionally provided with manual actuation part.
Specific to the present embodiment, the flow adjusting device be the shutoff valve with rated pressure difference, the shutoff valve
It is axially arranged at least one flow adjustment orifice.
Specific to the present embodiment, cover is additionally provided with outside the manual-automation integrated electric ball valve 2, the cover is by protecgulum with after
Lid forms, and is detachably connected between front/rear cover.
Specific to the present embodiment, the valve rod of the manual-automation integrated electric ball valve 2 is located at 25 downside of ball valve gear and detachably connects
Fixing piece 24 is connected to, the driving motor 22 is fixed by motor cabinet 27 and fixing piece 24, and controller 4 is fixed at fixing piece 24
Side.
Specific to the present embodiment, the manual actuation part is equipped with several lug bosses vertically, detachable with valve stem end
Connection.
Specific to the present embodiment, the driving motor 22 is clamped with motor cabinet 27, and motor cabinet 27 is spirally connected with fixing piece 24.
The monitoring method of ultrasonic wave water leakage monitoring protector of the present invention, its step are as follows：
Step 1：When user's water, the current in pipeline circulate, and current pass through ultrasonic wave water flow sensor, work as current
After amount is more than ultrasonic wave water flow sensor initial-flow, controller water flow detection module detects current water flow, and root
This water consumption is calculated according to the current duration, then judges to leak when this water consumption is more than and limits single maximum water consumption
Electrical ball valve is closed in water, controller control；
Step 2：When user stops with water, when pipeline is in leak state, current pass through ultrasonic wave water flow sensor, work as water
After flow is more than ultrasonic wave water flow sensor initial-flow, controller calculates according to water flow and current duration and uses water
Amount when water consumption is more than to limit water then to judge leak, and closes electrical ball valve.
Specific to the present embodiment, the sensitivity of the ultrasonic wave water flow sensor, which can meet, to be detected more than initial-flow
Tiny flow quantity.
The beneficial effects of the invention are as follows：Ultrasonic wave water leakage monitoring protector structure design is reasonable, easy to install, can
It is good by property, when monitoring that pipeline leak occurs, user and automatic shutoff protection can be reminded in time.
Embodiment described above is a kind of preferable scheme of the present invention, and not the present invention is made in any form
Limitation also has other variants and remodeling on the premise of without departing from the technical solution recorded in claim.
Claims (9)
1. a kind of ultrasonic wave water leakage monitoring protector, the pipeline including being provided with inlet and outlet, which is characterized in that described
Pipeline in be equipped with ultrasonic wave water flow sensor and electrical ball valve, in ultrasonic wave water flow sensor close to the one side of water inlet
Flow adjusting device is provided with, pipeline is provided outside the controller that control electrical ball valve opens and closes, and ultrasonic wave water flow passes
Sensor and electrical ball valve are electrically connected with the controller respectively.
2. ultrasonic wave water leakage monitoring protector according to claim 1, it is characterised in that：The electrical ball valve is hand from one
Body electrical ball valve, the manual-automation integrated electric ball valve include ball valve body and driving motor, and the valve rod of the ball valve body is equipped with
Ball valve gear, driving motor output shaft are equipped with motor gear, ball valve gear and motor gear engagement, and driving motor is by touching out
Pass is electrically connected with the controller, and manual actuation part is additionally provided on the outside of the valve rod of the ball valve body.
3. ultrasonic wave water leakage monitoring protector according to claim 2, it is characterised in that：The flow adjusting device is
Shutoff valve with rated pressure difference, the shutoff valve are axially arranged at least one flow adjustment orifice.
4. ultrasonic wave water leakage monitoring protector according to claim 2, it is characterised in that：The manual-automation integrated electric ball valve
Outside is additionally provided with cover, and the cover is made of protecgulum and rear cover, is detachably connected between front/rear cover.
5. ultrasonic wave water leakage monitoring protector according to claim 2, it is characterised in that：The manual-automation integrated electric ball valve
Valve rod be located on the downside of ball valve gear and be removably connected with fixing piece, the driving motor is fixed by motor cabinet and fixing piece,
Controller is fixed at fixing piece side.
6. ultrasonic wave water leakage monitoring protector according to claim 2, it is characterised in that：The manual actuation part is vertically
Equipped with several lug bosses.
7. ultrasonic wave water leakage monitoring protector according to claim 2, it is characterised in that：The driving motor and motor cabinet
Clamping, motor cabinet are spirally connected with fixing piece.
8. the monitoring method of ultrasonic wave water leakage monitoring protector described in claim 1-7 any one, which is characterized in that its step
It is as follows：
Step 1：When user's water, the current in pipeline circulate, and current pass through ultrasonic wave water flow sensor, work as current
After amount is more than ultrasonic wave water flow sensor initial-flow, controller water flow detection module detects current water flow, and root
This water consumption is calculated according to the current duration, then judges to leak when this water consumption is more than and limits single maximum water consumption
Electrical ball valve is closed in water, controller control；
Step 2：When user stops with water, when pipeline is in leak state, current pass through ultrasonic wave water flow sensor, work as water
After flow is more than ultrasonic wave water flow sensor initial-flow, controller calculates according to water flow and current duration and uses water
Amount when water consumption is more than to limit water then to judge leak, and closes electrical ball valve.
9. monitoring method according to claim 8, which is characterized in that the sensitivity energy of the ultrasonic wave water flow sensor
Meet the tiny flow quantity detected more than initial-flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356344.6A CN108105450A (en) | 2017-12-16 | 2017-12-16 | Ultrasonic wave water leakage monitoring protector and its monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356344.6A CN108105450A (en) | 2017-12-16 | 2017-12-16 | Ultrasonic wave water leakage monitoring protector and its monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108105450A true CN108105450A (en) | 2018-06-01 |
Family
ID=62217412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711356344.6A Pending CN108105450A (en) | 2017-12-16 | 2017-12-16 | Ultrasonic wave water leakage monitoring protector and its monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105450A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404745A (en) * | 2018-12-18 | 2019-03-01 | 杨启敖 | Leak stop with ultrasonic wave |
| CN109404744A (en) * | 2018-12-18 | 2019-03-01 | 杨启敖 | Water-leakage protecting device with prefilter |
| CN109708711A (en) * | 2019-01-29 | 2019-05-03 | 艾科瑞(北京)仪器仪表有限公司 | A kind of ultrasonic intelligent leak-proof device and control method |
| CN109855693A (en) * | 2019-03-26 | 2019-06-07 | 杨启敖 | Ultrasonic water meter apparatus with leak protection and prefilter |
| CN110242819A (en) * | 2019-06-14 | 2019-09-17 | 日丰企业（佛山）有限公司 | A kind of leak protection equipment |
| CN110857741A (en) * | 2018-08-24 | 2020-03-03 | 天津市北方阀门控制设备有限公司 | An emergency cut-off for a valve |
| CN113236980A (en) * | 2021-04-23 | 2021-08-10 | 南京信息职业技术学院 | Water leakage protector and control method thereof |
| CN113803498A (en) * | 2020-06-16 | 2021-12-17 | 德尔塔阀门公司 | Electronic shower valve, shower valve core and electronic shower system |
| CN114360220A (en) * | 2021-12-03 | 2022-04-15 | 深圳安吉尔饮水产业集团有限公司 | Method for monitoring water leakage and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03108630A (en) * | 1989-09-22 | 1991-05-08 | Toto Ltd | Detection of water leak |
| CN201964908U (en) * | 2011-01-22 | 2011-09-07 | 格兰富水泵(上海)有限公司 | Flow measurement device |
| US20150088321A1 (en) * | 2013-09-24 | 2015-03-26 | Bray International, Inc. | Self-Learning Closed-Loop Control Valve System |
| US20170152648A1 (en) * | 2014-08-14 | 2017-06-01 | Soneter, Inc. | Methods and apparatus for fluid flow monitoring and leak detection |
| CN208090036U (en) * | 2017-12-16 | 2018-11-13 | 浙江倍世环境科技有限公司 | Ultrasonic wave water leakage monitoring protector |
-
2017
- 2017-12-16 CN CN201711356344.6A patent/CN108105450A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03108630A (en) * | 1989-09-22 | 1991-05-08 | Toto Ltd | Detection of water leak |
| CN201964908U (en) * | 2011-01-22 | 2011-09-07 | 格兰富水泵(上海)有限公司 | Flow measurement device |
| US20150088321A1 (en) * | 2013-09-24 | 2015-03-26 | Bray International, Inc. | Self-Learning Closed-Loop Control Valve System |
| US20170152648A1 (en) * | 2014-08-14 | 2017-06-01 | Soneter, Inc. | Methods and apparatus for fluid flow monitoring and leak detection |
| CN208090036U (en) * | 2017-12-16 | 2018-11-13 | 浙江倍世环境科技有限公司 | Ultrasonic wave water leakage monitoring protector |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110857741A (en) * | 2018-08-24 | 2020-03-03 | 天津市北方阀门控制设备有限公司 | An emergency cut-off for a valve |
| CN109404745A (en) * | 2018-12-18 | 2019-03-01 | 杨启敖 | Leak stop with ultrasonic wave |
| CN109404744A (en) * | 2018-12-18 | 2019-03-01 | 杨启敖 | Water-leakage protecting device with prefilter |
| CN109404744B (en) * | 2018-12-18 | 2024-01-16 | 杨启敖 | Water leakage protection device with pre-filtering function |
| CN109404745B (en) * | 2018-12-18 | 2024-04-05 | 杨启敖 | Water leakage protector with ultrasonic wave |
| CN109708711A (en) * | 2019-01-29 | 2019-05-03 | 艾科瑞(北京)仪器仪表有限公司 | A kind of ultrasonic intelligent leak-proof device and control method |
| CN109855693A (en) * | 2019-03-26 | 2019-06-07 | 杨启敖 | Ultrasonic water meter apparatus with leak protection and prefilter |
| CN110242819A (en) * | 2019-06-14 | 2019-09-17 | 日丰企业（佛山）有限公司 | A kind of leak protection equipment |
| CN113803498A (en) * | 2020-06-16 | 2021-12-17 | 德尔塔阀门公司 | Electronic shower valve, shower valve core and electronic shower system |
| CN113803498B (en) * | 2020-06-16 | 2024-05-10 | 德尔塔阀门公司 | Electronic shower valve, shower valve core and electronic shower system |
| CN113236980A (en) * | 2021-04-23 | 2021-08-10 | 南京信息职业技术学院 | Water leakage protector and control method thereof |
| CN114360220A (en) * | 2021-12-03 | 2022-04-15 | 深圳安吉尔饮水产业集团有限公司 | Method for monitoring water leakage and electronic equipment |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |
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