CN112730885B - Equipment for detecting working condition of water pipe - Google Patents
Equipment for detecting working condition of water pipe Download PDFInfo
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- CN112730885B CN112730885B CN202011527655.6A CN202011527655A CN112730885B CN 112730885 B CN112730885 B CN 112730885B CN 202011527655 A CN202011527655 A CN 202011527655A CN 112730885 B CN112730885 B CN 112730885B
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- metal sheet
- impeller
- probe
- pipeline
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P5/06—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Acoustics & Sound (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The invention discloses equipment for detecting the working condition of a water pipe, which comprises a metal sheet and a sensing device, wherein the metal sheet is arranged on the inner wall surface of a pipeline, the sensing device is arranged on the inner wall surface of the pipeline, the sensing device is connected with the metal sheet, an impeller is arranged on the metal sheet, a rotating speed measuring device is arranged on the impeller, and the impeller and the sensing device are connected with external equipment. The equipment for detecting the working condition of the water pipe can ensure that the working condition of the water pipe is monitored in real time, and if an unexpected condition occurs, the equipment can give a feedback alarm in time.
Description
Technical Field
The invention belongs to the technical field of water pipes, and particularly relates to equipment for detecting the working condition of a water pipe.
Background
In the field of water pipes and water meters, it is often necessary to monitor various operating conditions of the water pipe in real time, such as the flow direction of the water flow, the flow rate of the water flow, the rupture of the water pipe, and the like. In general, the existing water pipes are adjusted and repaired according to the use feedback of users.
However, some defects still exist, for example, if the user does not feed back timely, a great deal of waste is often caused, for example, the reverse direction of the water flow causes great trouble to charging, and the untimely feedback and repair of the damaged water pipe can cause a great deal of water leakage and other unexpected situations. Therefore, an apparatus for timely detecting the working condition of the water pipe is urgently needed.
Disclosure of Invention
Aiming at the defects, the invention provides the equipment for detecting the working condition of the water pipe, which can ensure that the working condition of the water pipe is monitored in real time, and can timely feed back and alarm if an unexpected condition occurs.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
the equipment for detecting the working condition of the water pipe comprises a metal sheet and a sensing device, wherein the metal sheet is arranged on the inner wall surface of the pipeline, the sensing device is connected with the metal sheet, an impeller is arranged on the metal sheet, a rotating speed measuring device is arranged on the impeller, and the impeller and the sensing device are connected with external equipment.
Preferably, the induction devices are two switches connected with bulbs, the two switches are respectively arranged on two sides of the metal sheet, and the bulbs on the two switches have different light; when the water-saving switch works, the metal sheet is impacted by water flow, the switch on one side is communicated, and the bulb on the switch is lightened.
Preferably, the device further comprises a barrier plate, a signal emitter and a baffle plate, wherein the barrier plate and the baffle plate are placed on the metal sheet; the baffle is connected with a power supply, the lower end of the blocking plate is connected with a signal transmitter, the baffle and the blocking plate are obliquely arranged in parallel, and one end of the baffle is arranged between the blades of the impeller; when the device works, if water flows reversely, the impeller pushes the baffle plate to be in contact communication with the blocking plate, and the signal transmitter sends signals to the external connecting device.
Preferably, the sensing devices are two photoelectric sensing devices, the two photoelectric sensing devices are respectively arranged on two sides of the metal sheet, and a light-emitting device is further arranged right above the metal sheet; when the device works, the metal sheet is impacted and bent by water flow, and the photoelectric sensing device judges the pressure condition of the metal sheet according to the shadow variation of the metal sheet.
Preferably, the sensing device is a tension sensing device, the tension sensing device is connected with the metal sheet in a tension-free manner through a spring, and the metal sheet is obliquely arranged; when the tension sensing device works, the metal sheet is impacted and bent by water flow, and the tension sensing device identifies the tension applied to the spring at the moment.
Preferably, the inner wall surface of the pipeline is also provided with probe assemblies, the probe assemblies are arranged at intervals along the length direction of the pipeline, each probe assembly comprises a probe transmitting device and a probe receiving device, the probe transmitting devices and the probe receiving devices are arranged in pairs in a staggered manner, and the probe receiving devices are connected with external equipment; when the device works, the probe transmitting device sends signals to the probe receiving device at regular time, and the probe receiving device sends signals to the external equipment.
Preferably, the inner wall of the pipeline is also provided with an ultrasonic device, and the ultrasonic device comprises an ultrasonic transmitting device and an ultrasonic receiving device which are oppositely arranged; the ultrasonic device is used for measuring the temperature of water flow in the pipeline.
Preferably, the equipment further comprises a microgravity sensing device, wherein the microgravity sensing device is in a sheet shape and is attached to the inner wall of the pipeline, and the microgravity sensing device is connected with external equipment; the microgravity sensing device is used for judging whether the pipeline deforms or not.
Preferably, the external equipment is an electric power storage device and a processor, and the electric power storage device is connected with the impeller and supplies power to the processor; the processor is used for receiving and processing the signals and analyzing the signals in real time.
Compared with the prior art, the device for detecting the working condition of the water pipe can ensure that the working condition of the water pipe is monitored in real time, and if an unexpected condition occurs, the device can timely feed back and alarm. The equipment for detecting the working condition of the water pipe comprises a metal sheet and a sensing device, wherein the metal sheet is arranged on the inner wall surface of the pipeline, the sensing device is connected with the metal sheet, an impeller is arranged on the metal sheet, a rotating speed measuring device is arranged on the impeller, and the impeller and the sensing device are connected with external equipment. The metal sheet and the sensing device are arranged in the pipeline to form monitoring equipment, if abnormal conditions occur in water flow, such as reverse water flow and the like, the metal sheet is influenced by the water flow, the state changes, and the sensing device identifies the state of the metal sheet in real time and feeds back the abnormal conditions to alarm; meanwhile, the impeller is arranged on the metal sheet, and the flow speed condition of water flow can be monitored through a rotating speed measuring device on the impeller; through setting up above-mentioned device, make the unusual circumstances in the water pipe obtain the monitoring, avoided the neglect to the water pipe is unusual, significantly reduced because the loss that unexpected circumstances such as water pipe damage, rivers are against the current brought, improved the stability in use of water pipe.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a probe assembly in an embodiment of the invention;
FIG. 3 is a schematic view of an ultrasonic apparatus in an embodiment of the present invention;
fig. 4 is a schematic structural view of an impeller in the embodiment of the present invention.
The figure shows that: the ultrasonic probe comprises a metal sheet 1, a probe transmitting device 2, a probe receiving device 3, an ultrasonic transmitting device 4, an ultrasonic receiving device 5, an impeller 6, a baffle 7 and a baffle plate 8.
Detailed Description
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.
As shown in fig. 1, an apparatus for detecting a water pipe working condition according to an embodiment of the present invention includes a metal sheet 1 and an induction device, the metal sheet 1 is disposed on an inner wall surface of a pipeline, the induction device is disposed on the inner wall surface of the pipeline, the induction device is connected to the metal sheet 1, an impeller 6 is disposed on the metal sheet 1, a rotation speed measuring device is disposed on the impeller 6, and the impeller 6 and the induction device are connected to an external apparatus.
The metal sheet 1 and the sensing device are arranged in the pipeline to form monitoring equipment, if abnormal conditions occur in water flow, such as reverse water flow and the like, the metal sheet 1 is influenced by the water flow, the state changes, and the sensing device identifies the state of the metal sheet 1 in real time and feeds back the abnormal conditions to alarm; meanwhile, the impeller 6 is arranged on the metal sheet 1, and the flow velocity condition of water flow can be monitored through a rotating speed measuring device on the impeller 6.
In the apparatus for detecting a water pipe working condition according to the above embodiment, preferably, the sensing devices are two switches connected with bulbs, the two switches are respectively disposed on two sides of the metal sheet 1, and the bulbs on the two switches have different lights; when the water-saving lamp works, the metal sheet 1 is impacted by water flow, the switch on one side is communicated, and the bulb on the switch is lightened. The rivers forward flow or backward flow, and foil 1 takes place the deformation, and the cable takes place the motion about driving, according to the end of the head side to side motion, the power switch of undulant upper and lower installation, it is different to be closed or the swing of switch toward left right direction according to the switch, and the switch is all opened, but, shows that light colour is different, judges that the direction of rivers is forward, still is the reverse. If the direction is reverse, the water flow is in a reverse flow, and the maintenance is needed.
As shown in fig. 4, preferably, the apparatus further comprises a baffle plate 8, a signal emitter and a baffle 7, the baffle plate 8 and the baffle 7 being placed on the metal sheet 1; the baffle 7 is connected with a power supply, the lower end of the blocking plate 8 is connected with a signal transmitter, the baffle 7 and the blocking plate 8 are obliquely arranged in parallel, and one end of the baffle 7 is arranged between the blades of the impeller 6; when the device works, if water flows in the reverse direction, the impeller 6 pushes the baffle 7 to be in contact communication with the blocking plate 8, and the signal transmitter sends signals to the external connecting device. The baffle plate 8 and the baffle plate 7 are in a non-contact state when placed, when water flows in the forward direction, the impeller 6 rotates in the forward direction and touches the baffle plate 7, but normal work is not influenced; when water flow reversely flows, the impeller 6 reversely rotates to drive the baffle 7 to be communicated with the barrier plate 8, and meanwhile, the baffle 7 is positioned between blades of the impeller 6, so that the impeller 6 is blocked and cannot continuously rotate. After the baffle 7 is communicated with the blocking plate 8, power is supplied to the signal transmitter. The signal transmitter sends signals to the external device to indicate that the impeller 6 is locked and the water flow is reversed, so that the maintenance is required.
Preferably, the sensing devices are two photoelectric sensing devices, the two photoelectric sensing devices are respectively arranged on two sides of the metal sheet 1, and a light-emitting device is further arranged right above the metal sheet 1; when the device works, the metal sheet 1 is impacted and bent by water flow, and the photoelectric sensing device judges the pressure condition of the metal sheet 1 according to the shadow variation of the metal sheet 1. Because the metal sheet 1 is flushed by water flow, the metal sheet 1 deforms along with the water flow direction, so that the shadow of the metal sheet 1 is arranged on the photoelectric sensing device on one side, and the photoelectric sensing device on the other side is not arranged, the water flow direction is distinguished, and if the water flow direction is a reverse flow, an alarm is given for maintenance; meanwhile, the photoelectric sensing device identifies the real-time shadow variable quantity according to a preset shadow variable quantity and water flow velocity mapping relation table to obtain the water flow velocity at the moment.
Preferably, the sensing device is a tension sensing device, the tension sensing device is connected with the metal sheet 1 through a spring without tension, and the metal sheet 1 is obliquely arranged; in operation, the metal sheet 1 is impacted and bent by water flow, and the tension sensing device identifies the tension applied to the spring at the moment. Through setting up tension induction system to be connected through spring and foil 1 no tension, foil 1 makes the spring take place deformation when deformation takes place along with the rivers flow direction, elongates or compresses tightly, and tension induction system is tensile for elongating or the pressure that compresses tightly according to the spring received, judges the flow direction of rivers this moment. Meanwhile, the spring can be replaced by a coil, and the water flow direction is judged according to the stretching or the pressing of the coil.
As shown in fig. 2, preferably, probe assemblies are further arranged on the inner wall surface of the pipeline, the probe assemblies are arranged at intervals along the length direction of the pipeline, each probe assembly comprises a probe transmitting device 2 and a probe receiving device 3, the probe transmitting devices 2 and the probe receiving devices 3 are arranged in pairs in a staggered manner, and the probe receiving devices 3 are connected with external equipment; when the device works, the probe transmitting device 2 sends signals to the probe receiving device 3 at regular time, and the probe receiving device 3 sends signals to external equipment. Through set up probe subassembly on the pipeline wall, probe emitter 2 can launch laser, photoelectricity, pulse signal etc. according to the transmission back, whether the pipeline warp is shown to the received position of signal to probe receiving arrangement 3, through the signal transmission of receiving arrangement and external device, the deformation position of sign pipeline position. According to the detection condition of the probe, whether the pipeline is damaged or not is indicated, if the pipeline is damaged, the water flow speed can form a high flow speed phenomenon locally, whether the water pipeline is damaged or not is indicated according to the speed change of the water flow, and if the pipeline is damaged, the deformation position is sent to the external device.
As shown in fig. 3, preferably, an ultrasonic device is further disposed on the inner wall of the pipeline, and the ultrasonic device includes an ultrasonic transmitting device 4 and an ultrasonic receiving device 5 which are oppositely disposed; the ultrasonic device is used for measuring the temperature of water flow in the pipeline. The temperature of the water flow is represented by the ultrasonic wave transmitting and receiving device 5, and the real-time water flow temperature is obtained by measuring and calculating the time of the ultrasonic wave transmitting and receiving device due to the fact that the propagation speeds of sound in liquid with different temperatures are different. In addition, the device can also prevent the water pipe from bursting, and the signal alarm is sent out when the threshold value is reached through presetting the bursting threshold value, thereby further protecting the water pipe.
Preferably, the equipment further comprises a microgravity induction device, wherein the microgravity induction device is in a sheet shape and is attached to the inner wall of the pipeline, and the microgravity induction device is connected with external equipment; the microgravity sensing device is used for judging whether the pipeline deforms or not. Through setting up lamellar microgravity induction system on pipeline inner wall, when the pipeline takes place the condition such as damage, burst, microgravity induction system also along with taking place deformation, then sends alarm signal to external device, the suggestion needs to be overhauld.
Preferably, the external equipment is an electric power storage device and a processor, and the electric power storage device is connected with the impeller 6 and supplies power to the processor; the processor is used for receiving and processing the signals and analyzing the signals in real time. Through setting up the treater, transmit the signal and the data of all device transmissions to data analysis center through the network to real-time handling and analysis feed back out the calculated result, if receive the signal of abnormal conditions, then send out the police dispatch newspaper, the suggestion water pipe needs to overhaul.
The working process of the device for detecting the working condition of the water pipe in the embodiment is as follows: after the installation is finished, identifying the water flow direction according to the deformation condition of the metal sheet 1 along with the water flow by arranging the metal sheet 1 and the induction device, and sending a signal to a processor if the water flow direction is a reverse flow to indicate that the maintenance and the adjustment are needed; meanwhile, the current water flow velocity is shown according to the rotating speed through a rotating speed sensor on the impeller 6, and if the water flow velocity is abnormal, a signal is sent to prompt overhaul and check; then, monitoring the damage of the water pipe through a probe assembly or a microgravity induction device arranged on the wall surface of the pipeline, and if the water pipe is deformed or damaged and burst, sending an alarm signal to a processor to indicate that the water pipe needs to be overhauled; finally, the water flow temperature in the water pipe is monitored in real time through the ultrasonic device arranged on the wall surface, if the water flow temperature is lower than a threshold value, an early warning signal that the water pipe is likely to burst is sent out, the water pipe is protected and adjusted in a prompting mode, and adverse effects caused after the water pipe bursts are prevented.
Compared with the prior art, the equipment for detecting the working condition of the water pipe has the advantages that the metal sheet and the sensing device are arranged in the pipeline to form monitoring equipment, if abnormal conditions of water flow occur, such as reverse water flow and the like, the metal sheet is influenced by the water flow, the state changes, the sensing device identifies the state of the metal sheet in real time, and the abnormal conditions are fed back and alarmed; meanwhile, the impeller is arranged on the metal sheet, and the flow speed condition of water flow can be monitored through a rotating speed measuring device on the impeller; through setting up above-mentioned device, make the unusual circumstances in the water pipe obtain the monitoring, avoided the neglect to the water pipe is unusual, significantly reduced because the loss that unexpected circumstances such as water pipe damage, rivers are against the current brought, improved the stability in use of water pipe.
The embodiments of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. That is, all equivalent changes and modifications made according to the content of the claims of the present invention should be regarded as the technical scope of the present invention.
Claims (8)
1. The equipment for detecting the working condition of the water pipe is characterized by comprising a metal sheet (1) and a sensing device, wherein the metal sheet (1) is arranged on the inner wall surface of a pipeline, the sensing device is arranged on the inner wall surface of the pipeline, the sensing device is connected with the metal sheet (1), an impeller (6) is arranged on the metal sheet (1), a rotating speed measuring device is arranged on the impeller (6), and the impeller (6) and the sensing device are connected with external equipment;
the device is characterized by further comprising a blocking plate (8), a signal emitter and a baffle (7), wherein the blocking plate (8) and the baffle (7) are placed on the metal sheet (1); the baffle (7) is connected with a power supply, the lower end of the blocking plate (8) is connected with a signal transmitter, the baffle (7) and the blocking plate (8) are obliquely arranged in parallel, and one end of the baffle (7) is arranged between blades of the impeller (6); when the device works, if water flows reversely, the impeller (6) pushes the baffle (7) to be in contact communication with the blocking plate (8) to supply power to the signal transmitter, the signal transmitter transmits signals to the external device, and meanwhile, the baffle (7) is positioned between blades of the impeller (6) to enable the impeller (6) to be blocked and incapable of continuously rotating; when water flow flows in the forward direction, the impeller (6) rotates in the forward direction and touches the baffle (7), but normal operation is not affected.
2. The apparatus for detecting the working condition of water pipes as claimed in claim 1, wherein said sensing means are two switches with bulbs respectively arranged on both sides of the foil (1), the bulbs on said two switches having different lights; when the water-saving lamp works, the metal sheet (1) is impacted by water flow, the switch on one side is communicated, and the bulb on the switch is lightened.
3. The apparatus for detecting the working condition of water pipes as claimed in claim 1, wherein the sensing means are two photoelectric sensing means, the two photoelectric sensing means are respectively disposed at both sides of the metal sheet (1), and a light emitting means is further disposed right above the metal sheet (1); when the device works, the metal sheet (1) is impacted and bent by water flow, and the photoelectric sensing device judges the pressure condition of the metal sheet (1) according to the shadow variation of the metal sheet (1).
4. The apparatus for detecting water tube working conditions according to claim 1, wherein said sensing means is a tension sensing means, said tension sensing means is connected to the thin metal sheet (1) without tension by a spring, said thin metal sheet (1) is obliquely arranged; when the tension sensing device works, the metal sheet (1) is impacted and bent by water flow, and the tension sensing device identifies the tension applied to the spring at the moment.
5. The apparatus for detecting the working condition of water pipe according to claim 1, wherein the inner wall surface of the pipeline is further provided with probe assemblies, the probe assemblies are arranged at intervals along the length direction of the pipeline, the probe assemblies comprise probe transmitting devices (2) and probe receiving devices (3), the probe transmitting devices (2) and the probe receiving devices (3) are arranged in pairs in a staggered manner, and the probe receiving devices (3) are connected with external equipment; when the device works, the probe transmitting device (2) sends signals to the probe receiving device (3) at regular time, and the probe receiving device (3) sends signals to external equipment.
6. The apparatus for detecting the working condition of water pipes as claimed in claim 1, wherein the inner wall of the pipe is further provided with ultrasonic means comprising ultrasonic emitting means (4) and ultrasonic receiving means (5) disposed opposite to each other; the ultrasonic device is used for measuring the temperature of water flow in the pipeline.
7. The apparatus for detecting the working condition of water pipe according to claim 1, further comprising a microgravity inducing means, wherein said microgravity inducing means is in the form of a sheet attached to the inner wall of the pipe, and said microgravity inducing means is connected to an external device; the microgravity sensing device is used for judging whether the pipeline deforms or not.
8. The apparatus for detecting the working condition of water pipes according to any one of claims 1 to 7, wherein the external apparatus is an electric storage device and a processor, and the electric storage device is connected with the impeller (6) to supply power to the processor; the processor is used for receiving and processing the signals and analyzing the signals in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527655.6A CN112730885B (en) | 2020-12-22 | 2020-12-22 | Equipment for detecting working condition of water pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527655.6A CN112730885B (en) | 2020-12-22 | 2020-12-22 | Equipment for detecting working condition of water pipe |
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| CN112730885A CN112730885A (en) | 2021-04-30 |
| CN112730885B true CN112730885B (en) | 2022-07-08 |
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| CN202011527655.6A Active CN112730885B (en) | 2020-12-22 | 2020-12-22 | Equipment for detecting working condition of water pipe |
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| CN211148690U (en) * | 2020-01-13 | 2020-07-31 | 华电潍坊发电有限公司 | Indicator for flow direction and flow rate of pipeline fluid |
| CN111521840A (en) * | 2020-04-20 | 2020-08-11 | 杭州清泚源科技有限公司 | Monitoring system and monitoring method for urban underground pipe network |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004132729A (en) * | 2002-10-08 | 2004-04-30 | Deicy Corp | Flow direction and flow speed meter |
| JP2007147286A (en) * | 2005-11-24 | 2007-06-14 | Hitachi Plant Technologies Ltd | Rotational flow measuring apparatus |
| CN101625370A (en) * | 2009-08-19 | 2010-01-13 | 哈尔滨工业大学 | Instantaneous flow velocity and direction measuring instrument of fluid in pipelines |
| CN105758472A (en) * | 2016-04-07 | 2016-07-13 | 福建国仪上润投资有限公司 | Magnetic induction pulse flow metering device with function of flow direction judgment |
| CN208363454U (en) * | 2018-06-26 | 2019-01-11 | 向子扬 | A kind of downpipe of the skyscraper with pooling feature |
| CN208334408U (en) * | 2018-07-06 | 2019-01-04 | 孙波 | A kind of liquid flows to detection device |
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| CN110857868A (en) * | 2018-08-22 | 2020-03-03 | 吴晓彦 | Monitoring device for river flow velocity |
| CN110597305A (en) * | 2019-06-12 | 2019-12-20 | 张会 | Electromagnetic valve for detecting flow |
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| CN211148690U (en) * | 2020-01-13 | 2020-07-31 | 华电潍坊发电有限公司 | Indicator for flow direction and flow rate of pipeline fluid |
| CN111521840A (en) * | 2020-04-20 | 2020-08-11 | 杭州清泚源科技有限公司 | Monitoring system and monitoring method for urban underground pipe network |
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|---|---|
| CN112730885A (en) | 2021-04-30 |
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