CN107957007A - Second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline - Google Patents
Second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline Download PDFInfo
- Publication number
- CN107957007A CN107957007A CN201711326064.0A CN201711326064A CN107957007A CN 107957007 A CN107957007 A CN 107957007A CN 201711326064 A CN201711326064 A CN 201711326064A CN 107957007 A CN107957007 A CN 107957007A
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- Prior art keywords
- water
- pipe
- pressure
- breakage
- aqueduct
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Classifications
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- 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
Abstract
The invention discloses second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline, including cistern and control cabinet, water inlet pipe is provided with the side of cistern, the first check valve is provided with water inlet pipe, further include double-deck aqueduct and circuit controling assembly, it is horizontally arranged above and below double-deck aqueduct, one end of double-deck aqueduct is connected in cistern by water-supply-pipe, the other end of double-deck aqueduct is connected with outlet pipe, water leak detectors are respectively connected with above double-deck aqueduct, water leak detectors connect control cabinet by the second conducting wire.The configuration of the present invention is simple; it is highly practical; not only increase the intensity of pipeline; and can occur in inner layer pipe in the case that crack causes leakage; protected by outer layer pipe, the waste of water resource is reduced during alarm, can effectively solve problems of the prior art; it can be changed at the same time according to the pressure value of diverse location to determine the rupture location of pipeline, it is easy to repair.
Description
Technical field
The present invention relates to second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline.
Background technology
Water distribution system flushing technology is solved in secondary water supply system using pump as boundary --- energy saving, section before pump suction
Key issues of water, environmental protection, but the problem of (i.e. second pressure water supply section) still suffers from waste of energy and water resource after pump.Supply water
Aqueduct is embedded in underground throughout the year, and general pipeline is longer, usually because the problems such as sedimentation, external force, quality ruptures, and because
It is the pressure peak in second pressure water supply system for underground water conduit, a large amount of water will be caused by such as finding and handling not in time
Resource is lost in vain, causes the serious waste of water resource.
At present, after pipeline breaking, still lack effective method and find and handle in time, often to pass through relatively long
Time could find.
The breakage of underground water transportation pipeline for frequency conversion constant-pressure secondary water supply automatic alarm processing that China State Intellectual Property Office is announced
Device (application number：200610012881.4 the applying date：2006.6.27 publication date：2006.12.13), secondary pressurized water pump
Water inlet is connected by water pump pipeline knife switch, one way stop peturn valve with water storage container, and the water outlet of secondary pressurized water pump passes through
Water pump pipeline knife switch, one way stop peturn valve are connected with main pipeline, and bypass pipe one end with solenoid valve is connected with water storage container,
The other end is connected with main pipeline, and distance-transmission pressure gauge is provided with main pipeline, and main pipeline will also be connected with every underground piping successively
Logical, the beginning of every underground piping sets beginning normal-open electromagnetic valve, and end sets end normal-open electromagnetic valve, although the device
Pipeline breaking can be found in time and alarmed, but be easy to cause water resource utility model, and introduced contaminants is easily accessible pipe
Polluted in road.
The content of the invention
Present invention aims at second pressure water supply underground water conduit is provided for the deficiency present in the prior art
The technical solution of automatic alarming and processing device for breakage, not only increases the intensity of pipeline, and can be split in inner layer pipe
In the case that seam causes leakage, protected by outer layer pipe, the waste of water resource is reduced during alarm, can be effective
Problems of the prior art are solved, while can be changed according to the pressure value of diverse location to determine the rupture position of pipeline
Put, it is easy to repair.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
Second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline, including cistern and control cabinet, water storage
Water inlet pipe is provided with the side in pond, the first check valve is provided with water inlet pipe, it is characterised in that：Further include double-deck aqueduct
And circuit controling assembly, horizontally arranged above and below double-deck aqueduct, one end of double-deck aqueduct is connected to storage by water-supply-pipe
In pond, the other end of double-deck aqueduct is connected with outlet pipe, and water leak detectors are respectively connected with above double-deck aqueduct,
Water leak detectors connect control cabinet by the second conducting wire；By the design of double-deck aqueduct, the intensity of pipeline is not only increased,
And can occur in the case that crack causes leakage, being protected by outer layer pipe, during alarm in inner layer pipe
The waste of water resource is reduced, can effectively solve problems of the prior art, while can be according to the pressure of diverse location
Value change is easy to repair to determine the rupture location of pipeline, and water leak detectors in real time can carry out each double-deck aqueduct
Monitoring, notifies maintenance personal by control cabinet easy to first time, improves the safety and reliability of whole underground water conduit,
Circuit controling assembly can break pipeline according to the pressure change of underground water conduit and cistern and with reference to water leak detectors
Split position and damaged degree is monitored, easy to take measures in time, reduce the loss of water resource.
Further, the end set that water-supply-pipe is located at cistern side has the second check valve, is provided with water-supply-pipe secondary
Pressure pump, the second check valve can control the flow of water-supply-pipe, the carrying capacity of water-supply-pipe is met each double-deck aqueduct
Needs, secondary pressurized water pump can improve the water delivery pressure of water-supply-pipe, reach the hydraulic pressure in each double-deck aqueduct and set
Fixed requirement.
Further, water level sensor is provided with cistern, water level sensor connects control cabinet, water level by the first conducting wire
Sensor can detect the storage capacity in cistern, and when the water level in cistern is less than water level sensor, the second check valve closes
Close, while the first check valve on water inlet pipe is opened, and carries out water flood operations.
Further, double-deck aqueduct is made of water pipe monomer and retaining mechanism, and water pipe monomer is including internal layer water pipe and outside
Layer water pipe, internal layer water pipe is wrapped in the inside of outer layer water pipe, baffle ring is evenly arranged between internal layer water pipe and outer layer water pipe, adjacent
Spill cavity is formed between two baffle rings, at least two pressure sensors are provided with spill cavity, and two pressure sensors are symmetrical
Set, each pressure sensor is connected with water leak detectors, can be according to reality by the design of water pipe monomer and retaining mechanism
The requirement of border construction is increased or is shortened to the length of double-deck aqueduct, improves flexibility during its use, while just
In maintenance, maintenance cost is reduced, when the part of water pipe monomer ruptures, water can enter corresponding overflow by the gap of rupture
Intracavitary is flowed, and then the pressure sensor in spill cavity is extruded, the changing value of pressure is passed to leak by pressure sensor
Detector, control cabinet is transferred to through water leak detectors, can quickly judge the position of rupture, while can be played by spill cavity
The effect of buffering, prevents double-deck aqueduct from all rupturing and causing the waste of water resource.
Further, retaining mechanism includes locating ring, screw bolt and nut, and locating ring is socketed in the end of two water pipe monomers respectively
On portion circumference side, the second limit hole is provided with locating ring, the excircle of water pipe monomer matches with the second limit hole, positioning
The first limit hole is evenly arranged with ring, the first limit hole is set in a ring using the second limit hole as the center of circle, two neighboring positioning
Achieved a fixed connection between ring by screw bolt and nut through the first limit hole, by screw bolt and nut by two neighboring locating ring
Clamp, realize being fixedly connected between two water pipe monomers, be easily installed dismounting, annular connection mode improves connection by force
Degree, while make the outer circumference surface uniform force of water pipe monomer, extend its service life.
Further, the both ends of water pipe monomer are respectively arranged with groove and boss, and groove matches with boss, groove and boss
Between be provided with sealing ring, groove improves seal degree when two water pipe monomers connect with the design of boss, along with close
Seal, substantially increases sealing performance.
Further, the vertical interval between internal layer water pipe and outer layer water pipe is 15~25mm, the design of this spacing is not only not
The weight of double-deck aqueduct entirety can be increased, and improve intensity, effectively avoid making in the case of because of inner side pipe burst
Into water resource utility model.
Further, be connected with pressure gauge between water-supply-pipe and control cabinet, pressure gauge can in real time to the pressure of water-supply-pipe into
Row monitoring, when double-deck aqueduct ruptures, can influence the water delivery pressure in water-supply-pipe, and then can combine leak water detdction
Device further confirms that, improves the precision of automatic alarm.
Further, circuit controling assembly includes microcontroller, analog-to-digital conversion module, display module, water lev el control module, alarm
Module and drive module, analog-to-digital conversion module, display module, water lev el control module, alarm module and drive module are sequentially connected
Microcontroller, pressure gauge, water pump frequency and double-deck water pipe total pressure module pressure gauge water pump frequency are connected with analog-to-digital conversion module
Digital signal can be formed by analog-to-digital conversion module with the analog signal of double-deck water pipe total pressure module and be transferred to microcontroller, passed through
Display module can be shown that personnel easy to repair are intuitively judged by numeral, while are reported through alarm module
Alert, drive module is used for the switch for controlling water-supply-pipe.
Further, double-deck water pipe total pressure module connection water leak detectors, easy in time be divided the changing value of pressure
Analysis compares, and judges the degree of rupture.
The present invention is by adopting the above-described technical solution, have the advantages that：
1st, by the design of double-deck aqueduct, the intensity of pipeline is not only increased, and can be occurred in inner layer pipe
In the case that leakage is caused in crack, protected by outer layer pipe, the waste of water resource, Ke Yiyou are reduced during alarm
Effect solves problems of the prior art, while can be changed according to the pressure value of diverse location to determine the rupture position of pipeline
Put, it is easy to repair；
2nd, water leak detectors in real time can be monitored each double-deck aqueduct, easy to pass through control cabinet at the first time
Notify maintenance personal, improve the safety and reliability of whole underground water conduit；
3rd, circuit controling assembly according to the pressure change of underground water conduit and cistern and can combine water leak detectors
The rupture location and damaged degree of pipeline are monitored, easy to take measures in time, reduce the loss of water resource.
The configuration of the present invention is simple, it is highly practical, the intensity of pipeline is not only increased, and can be split in inner layer pipe
In the case that seam causes leakage, protected by outer layer pipe, the waste of water resource is reduced during alarm, can be effective
Problems of the prior art are solved, while can be changed according to the pressure value of diverse location to determine the rupture position of pipeline
Put, it is easy to repair.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the structure diagram of second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline of the present invention；
Fig. 2 is the structure diagram of water pipe monomer in the present invention；
Fig. 3 is the connection diagram between two water pipe monomers in the present invention；
Fig. 4 is the structure diagram of locating ring in the present invention；
Fig. 5 is the FB(flow block) of circuit controling assembly in the present invention.
In figure：1- cisterns；2- control cabinets；3- bilayer aqueducts；4- water inlet pipes；The first check valves of 5-；6- water levels pass
Sensor；The first conducting wires of 7-；8- water-supply-pipes；The second check valves of 9-；10- secondary pressurized water pumps；11- pressure gauges；12- leak water detdctions
Device；The second conducting wires of 13-；14- outlet pipes；15- water pipe monomers；16- outer layer water pipes；17- baffle rings；18- spill cavities；19- pressure passes
Sensor；20- internal layer water pipes；21- sealing rings；22- locating rings；23- bolts；24- nuts；The first limit holes of 25-；26- second is limited
Position hole.
Embodiment
As shown in Figures 1 to 5, it is second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline of the present invention,
Including cistern 1 and control cabinet 2, water inlet pipe 4 is provided with the side of cistern 1, the first check valve 5 is provided with water inlet pipe 4,
Water level sensor 6 is provided with cistern 1, water level sensor 6 connects control cabinet 2 by the first conducting wire 7, and water level sensor 6 can
To detect the storage capacity in cistern 1, when the water level in cistern 1 is less than water level sensor 6, the second check valve 9 is closed, together
When water inlet pipe 4 on the first check valve 5 open, carry out water flood operations.
Double-deck aqueduct 3 and circuit controling assembly are further included, double-deck aqueduct is horizontally arranged about 3, double-deck water delivery
One end of pipeline 3 is connected in cistern 1 by water-supply-pipe 8, and the end set that water-supply-pipe 8 is located at 1 side of cistern has second
Check valve 9, is provided with secondary pressurized water pump 10 on water-supply-pipe 8, the second check valve 9 can control the flow of water-supply-pipe 8, make water delivery
The carrying capacity of pipe 8 meets the needs of each double-deck aqueduct 3, and secondary pressurized water pump 10 can improve the water delivery pressure of water-supply-pipe 8
Power, makes the hydraulic pressure in each double-deck aqueduct 3 reach the requirement of setting.
Double-deck aqueduct 3 is made of water pipe monomer 15 and retaining mechanism, and water pipe monomer 15 is including internal layer water pipe 20 and outside
Layer water pipe 16, internal layer water pipe 20 are wrapped in the inside of outer layer water pipe 16, are uniformly arranged between internal layer water pipe 20 and outer layer water pipe 16
There is baffle ring 17, spill cavity 18 formed between two neighboring baffle ring 17, at least two pressure sensors 19 are provided with spill cavity 18,
And two pressure sensors 19 are symmetrical arranged, each pressure sensor 19 is connected with water leak detectors 12, passes through water pipe monomer
15 and the design of retaining mechanism, the length of double-deck aqueduct 3 can be increased or be shortened according to the requirement of practice of construction,
Flexibility during its use is improved, at the same it is easy to repair, maintenance cost is reduced, when the part of water pipe monomer 15 ruptures
When, water can be entered in corresponding spill cavity 18 by the gap of rupture, and then the pressure sensor 19 in spill cavity 18 is carried out
The changing value of pressure is passed to water leak detectors 12, control cabinet is transferred to through water leak detectors 12 by extruding, pressure sensor 19
2, it can quickly judge the position of rupture, while buffering can be played the role of by spill cavity 18, prevent double-deck aqueduct 3
All rupture and cause the waste of water resource, the both ends of water pipe monomer 15 are respectively arranged with groove and boss, groove and boss phase
Matching, is provided with sealing ring 21, when the design of groove and boss improves two connections of water pipe monomers 15 between groove and boss
Seal degree, along with sealing ring 21, substantially increase sealing performance.
Vertical interval between internal layer water pipe 20 and outer layer water pipe 16 is 15~25mm, and the design of this spacing will not only increase
Add the overall weight of double-deck aqueduct 3, and improve intensity, effectively avoid caused by the case that inner side water pipe 20 ruptures
Water resource utility model.
Retaining mechanism includes locating ring 22, bolt 23 and nut 24, and locating ring 22 is socketed in two water pipe monomers 15 respectively
End circumference side on, the second limit hole 26, the excircle of water pipe monomer 15 and the second limit hole are provided with locating ring 22
26 match, and the first limit hole 25 is evenly arranged with locating ring 22, and the first limit hole 25 is in for the center of circle with the second limit hole 26
Annular is set, and is achieved a fixed connection between two neighboring locating ring 22 by bolt 23 and nut 24 through the first limit hole 25,
Two neighboring locating ring 22 is clamped by bolt 23 and nut 24, realizes being fixedly connected between two water pipe monomers 15, just
In installing and dismounting, annular connection mode improves bonding strength, while makes the outer circumference surface uniform force of water pipe monomer 15, prolongs
Its long service life.
Be connected with pressure gauge 11 between water-supply-pipe 8 and control cabinet 2, pressure gauge 11 can in real time to the pressure of water-supply-pipe 8 into
Row monitoring, when double-deck aqueduct 3 ruptures, can influence the water delivery pressure in water-supply-pipe 8, and then can combine leak and examine
Survey device 12 to further confirm that, improve the precision of automatic alarm, circuit controling assembly includes microcontroller, analog-to-digital conversion module, display
Module, water lev el control module, alarm module and drive module, analog-to-digital conversion module, display module, water lev el control module, alarm
Module and drive module are sequentially connected microcontroller, and pressure gauge 11, water pump frequency and double-deck water pipe are connected with analog-to-digital conversion module
Total pressure module, the analog signal of pressure gauge 11, water pump frequency and double-deck water pipe total pressure module can pass through analog-to-digital conversion mould
Block forms digital signal and is transferred to microcontroller, can be shown through display module, and personnel easy to repair are carried out straight by numeral
The judgement of sight, while alarm through alarm module, drive module is used for the switch for controlling water-supply-pipe 8, double-deck water pipe gross pressure
Module connects water leak detectors 12, easy to which the changing value of pressure is analysed and compared in time, judges the degree of rupture.
The other end of double-deck aqueduct 3 is connected with outlet pipe 14, and the top of double-deck aqueduct 3 is respectively connected with leak inspection
Device 12 is surveyed, water leak detectors 12 connect control cabinet 2 by the second conducting wire 13；By the design of double-deck aqueduct 3, not only improve
The intensity of pipeline, and can occur in the case that crack causes leakage, being protected by outer layer pipe in inner layer pipe,
The waste of water resource is reduced during alarm, can effectively solve problems of the prior art, while can be according to not
Pressure value with position changes to determine the rupture location of pipeline, easy to repair, and water leak detectors 12 can be in real time to each double
Layer aqueduct 3 is monitored, and is notified maintenance personal by control cabinet 2 easy to first time, is improved entirely lower water-supply-pipe 8
Safety and reliability, circuit controling assembly can with base area lower water-supply-pipe 8 and the pressure change of cistern 1 and combine leak
Water gauge 12 is monitored the rupture location and damaged degree of pipeline, easy to take measures in time, reduces the stream of water resource
Lose.
It these are only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto.It is any with this hair
Based on bright, to realize essentially identical technique effect, made ground simple change, equivalent substitution or modification etc., all cover
Among protection scope of the present invention.
Claims (10)
1. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline, including cistern and control cabinet, the storage
Water inlet pipe is provided with the side in pond, the first check valve is provided with the water inlet pipe, it is characterised in that：Further include double-deck defeated
Waterpipe and circuit controling assembly, it is described bilayer aqueduct above and below it is horizontally arranged, it is described bilayer aqueduct one end pass through
Water-supply-pipe is connected in the cistern, and the other end of the bilayer aqueduct is connected with outlet pipe, the bilayer water-supply-pipe
Water leak detectors are respectively connected with above road, the water leak detectors connect the control cabinet by the second conducting wire.
2. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 1, its feature
It is：The end set that the water-supply-pipe is located at the cistern side has the second check valve, and two are provided with the water-supply-pipe
Secondary pressure pump.
3. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 1, its feature
It is：Water level sensor is provided with the cistern, the water level sensor connects the control cabinet by the first conducting wire.
4. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 1, its feature
It is：The bilayer aqueduct is made of water pipe monomer and retaining mechanism, and the water pipe monomer includes internal layer water pipe and outer layer
Water pipe, the internal layer water pipe are wrapped in the inside of the outer layer water pipe, between the internal layer water pipe and the outer layer water pipe uniformly
Baffle ring is provided with, spill cavity is formed between the two neighboring baffle ring, at least two pressure sensings are provided with the spill cavity
Device, and two pressure sensors are symmetrical arranged, each pressure sensor is connected with the water leak detectors.
5. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 4, its feature
It is：The retaining mechanism includes locating ring, screw bolt and nut, and the locating ring is socketed in two water pipe monomers respectively
On the circumference side of end, the second limit hole, the excircle of the water pipe monomer and the described second limit are provided with the locating ring
Position hole matches, and is evenly arranged with the first limit hole on the locating ring, first limit hole using second limit hole as
The center of circle is set in a ring, and first limit hole is passed through by the bolt and the nut between the two neighboring locating ring
Achieve a fixed connection.
6. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 4, its feature
It is：The both ends of the water pipe monomer are respectively arranged with groove and boss, and the groove matches with the boss, the groove
Sealing ring is provided between the boss.
7. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 4, its feature
It is：Vertical interval between the internal layer water pipe and the outer layer water pipe is 15~25mm.
8. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 1, its feature
It is：Pressure gauge is connected between the water-supply-pipe and the control cabinet.
9. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 8, its feature
It is：The circuit controling assembly include microcontroller, analog-to-digital conversion module, display module, water lev el control module, alarm module and
Drive module, the analog-to-digital conversion module, the display module, the water lev el control module, the alarm module and the drive
Dynamic model block is sequentially connected the microcontroller, and the pressure gauge, water pump frequency and Double-layer water are connected with the analog-to-digital conversion module
Pipe total pressure module.
10. second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline according to claim 9, its feature
It is：The bilayer water pipe total pressure module connects the water leak detectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711326064.0A CN107957007A (en) | 2017-12-13 | 2017-12-13 | Second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711326064.0A CN107957007A (en) | 2017-12-13 | 2017-12-13 | Second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107957007A true CN107957007A (en) | 2018-04-24 |
Family
ID=61958753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711326064.0A Pending CN107957007A (en) | 2017-12-13 | 2017-12-13 | Second pressure water supply automatic alarming and processing device for breakage of underground water transportation pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107957007A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140989A (en) * | 2019-12-30 | 2020-05-12 | 珠海格力电器股份有限公司 | Dehumidifier water tank structure with water leakage detection and protection functions and dehumidifier |
| CN112197180A (en) * | 2020-10-16 | 2021-01-08 | 宁波耀通管阀科技有限公司 | Gas pipe fitting leak protection structure |
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| CN1877189A (en) * | 2006-06-27 | 2006-12-13 | 燕山大学 | Automatic alarming and processing device for breakage of underground water transportation pipeline for frequency conversion constant-pressure secondary water supply |
| CN201141487Y (en) * | 2007-12-26 | 2008-10-29 | 北京航天试验技术研究所 | Flange joint structure of multi-layer vacuum heat-insulation pipe with low heat leakage |
| WO2017078670A1 (en) * | 2015-11-02 | 2017-05-11 | Flexsteel Pipeline Technologies, Inc. | Real time integrity monitoring of on-shore pipes |
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| US20050166666A1 (en) * | 2004-02-04 | 2005-08-04 | Laserfront Technologies, Inc. | Piping structure having leak detection function and leak detector |
| CN1651815A (en) * | 2004-02-04 | 2005-08-10 | 激光先进技术股份公司 | Piping structure having leak detection function and leak detector |
| CN1877189A (en) * | 2006-06-27 | 2006-12-13 | 燕山大学 | Automatic alarming and processing device for breakage of underground water transportation pipeline for frequency conversion constant-pressure secondary water supply |
| CN201141487Y (en) * | 2007-12-26 | 2008-10-29 | 北京航天试验技术研究所 | Flange joint structure of multi-layer vacuum heat-insulation pipe with low heat leakage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111140989A (en) * | 2019-12-30 | 2020-05-12 | 珠海格力电器股份有限公司 | Dehumidifier water tank structure with water leakage detection and protection functions and dehumidifier |
| CN112197180A (en) * | 2020-10-16 | 2021-01-08 | 宁波耀通管阀科技有限公司 | Gas pipe fitting leak protection structure |
| CN112197180B (en) * | 2020-10-16 | 2022-06-03 | 宁波耀通管阀科技有限公司 | Gas pipe fitting leak protection structure |
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