CN114197583A - Method for exporting data of non-negative-pressure water supply flow - Google Patents
Method for exporting data of non-negative-pressure water supply flow Download PDFInfo
- Publication number
- CN114197583A CN114197583A CN202111656744.5A CN202111656744A CN114197583A CN 114197583 A CN114197583 A CN 114197583A CN 202111656744 A CN202111656744 A CN 202111656744A CN 114197583 A CN114197583 A CN 114197583A
- Authority
- CN
- China
- Prior art keywords
- water supply
- flow
- negative pressure
- pipeline
- pressure water
- 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 180
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000012530 fluid Substances 0.000 claims description 18
- 238000000691 measurement method Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 12
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/072—Arrangement of flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
-
- 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
-
- 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
-
- 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
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
- G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a method for exporting data of non-negative pressure water supply flow, which comprises the following steps: s1: measuring the diameter of the inner wall of the pipeline without negative pressure water supply by a measuring device, and recording the measured value; s2: the sectional area of the inner wall of the duct can be calculated from the diameter of the inner wall of the duct to which water is supplied without negative pressure in S1. The method for deriving data of non-negative pressure water supply flow comprises the steps that the diameter of the outer surface of a pipeline is reduced by 2 times of thickness to obtain the diameter of the inner wall of the pipeline, the area of the section of the inner wall of the pipeline is calculated through a formula, the flow velocity inside the pipeline is measured through a sensor, the flow velocity is converted out in a numerical value mode through a converter, flow data are calculated through the formula, when the velocity of water flow is uniform, the maximum flow velocity and the minimum flow velocity can be measured through the sensor and the converter, the middle value of the maximum flow velocity and the minimum flow velocity serves as the average flow velocity of the flow velocity in the time period, and the data of the non-negative pressure water supply flow are calculated through the average flow velocity.
Description
Technical Field
The utility model relates to the technical field of water supply metering, in particular to a method for exporting data of non-negative pressure water supply flow.
Background
The water supply equipment without negative pressure is a pressure boosting equipment directly connected to water supply network. The traditional water supply mode can not leave the reservoir, and water in the reservoir is generally supplied by a tap water pipe, so that pressurized water enters the water pool and becomes zero, and a large amount of energy is wasted. The non-negative pressure water supply equipment is ideal energy-saving water supply equipment, can be directly connected with a tap water pipe network, can not generate any side effect on the tap water pipe network, can directly overlay and press water supply on the basis of municipal pipe network pressure, saves energy, and also has the advantages of full sealing, no pollution, small occupied area, quick installation, reliable operation, convenient maintenance and the like, the water supply flow refers to the calculation of the total amount of water for non-negative pressure water supply, the basis of water consumption condition research during water supply flow, and the water supply flow is also the basis of resident or industrial water cost calculation, and the existing method for exporting data by the non-negative pressure water supply flow has certain defects during use, such as the following example;
the utility model relates to a water supply flow measuring device of a heat supply network system, such as a heat supply network system water supply flow measuring device with the publication number of CN213363898U, which adopts a plurality of standard throttling pore plates and a differential pressure transmitter to solve the problem that a single flow transmitter cannot measure the water supply flow of a pipeline branch, wherein the standard throttling pore plates are respectively additionally arranged on an inlet of a main heat supply pipeline and an outlet of the main heat supply pipeline and are matched with the differential pressure transmitter, the inlet flow of the pipeline is the total water supply flow, the outlet flow of the pipeline is the water supply flow of an external network, the measuring error is small, the structure is simple, the application range is wide, and the precision of the data measurement of the water supply flow of the pipeline branch is effectively improved;
this prior art solution also presents the following problems when in use:
1. the flow of water supplied inside the non-negative-pressure water supply pipeline is measured and calculated more complexly;
2. when the flow rate of water supply in the non-negative-pressure water supply pipeline is not stable enough, the measured water supply flow is not accurate enough;
improvements are needed to address the above problems.
Disclosure of Invention
The utility model aims to provide a method for exporting data of non-negative pressure water supply flow, which aims to solve the problems that the flow of water supply in a non-negative pressure water supply pipeline is complicated to measure and calculate and the measured water supply flow is not accurate enough when the flow rate of the water supply in the non-negative pressure water supply pipeline is not stable enough, which are provided by the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a method for deriving data of non-negative pressure water supply flow comprises the following steps:
s1: measuring the diameter of the inner wall of the pipeline without negative pressure water supply by a measuring device, and recording the measured value;
s2: calculating the cross-sectional area of the inner wall of the pipeline according to the diameter of the inner wall of the pipeline for supplying water without negative pressure in the step S1;
s3: a flow velocity measuring instrument is arranged on the surface of a pipeline for supplying water without negative pressure, and the flow velocity measuring instrument comprises a sensor and a converter.
Preferably, in the step S1, when the diameter of the inner wall of the pipeline for supplying water without negative pressure is measured, the diameter of the outer surface is directly measured by using a vernier caliper, and the measured diameter of the outer surface is subtracted by 2 times of the thickness of the pipe wall to obtain the diameter d of the inner wall.
Preferably, the diameter d of the inner wall in S1 can be calculated by the formula: the area s = pi (d/2) obtains the cross-sectional area s of the inner wall of the non-negative-pressure water supply pipeline.
Preferably, the method comprises the following steps:
s4: measuring the water flow speed inside the pipeline for supplying water without negative pressure according to the sensor in the S3;
s5: and converting the water flow speed measured by the sensor in the S4 into data according to the converter in the S3.
Preferably, the sensor in S4 measures the velocity of the water flow, which includes three types, namely, ultrasonic sensing measurement, turbine sensing measurement and target sensing measurement; the ultrasonic sensing measurement method is to measure the time difference between a transmitting end and a receiving end by utilizing the speed difference of ultrasonic propagation in different flow rates so as to know the flow rate of a fluid; the turbine sensing measurement method is that when fluid flows through turbine blades in a pipeline, the flow speed of the fluid is measured through the rotating speed of the turbine blades; the principle of target-based sensing measurement is that when a medium flows through a target in a pipeline, the target is subjected to the acting force of the fluid, the force is proportional to the square of the flow of the fluid, and the flow velocity of the fluid can be measured according to the force.
Preferably, the method comprises the following steps:
s6: the speed of water flow in the non-negative pressure water supply pipeline is constant within a period of time;
s7: the sensor in S4 can directly measure the speed of the water flow inside the non-negative pressure water supply pipeline, and the water flow speed is converted into a numerical value by the converter in S5, and the obtained numerical value is used as the fixed water supply speed.
Preferably, the method comprises the following steps:
s8: the flow speed of the water flow in the non-negative pressure water supply pipeline is continuously changed, and the speed of the water flow is uniformly increased or uniformly reduced;
s9: taking the intermediate value of the maximum flow rate and the minimum flow rate recorded in the step S8 as the water flow velocity inside the non-negative-pressure water supply pipeline;
s10: the converter in S5 may convert the average speed of the water flow inside the non-negative pressure water supply pipeline into a value as the floating water supply speed.
Preferably, the method comprises the following steps:
s11: from the water supply rates obtained in S7 and S10, the formula is used: calculating to obtain a single water supply flow value according to the unit time flow rate (the cross-sectional area s) and the water supply speed (the time);
s12: the total flow rate value of the water supply in a period can be reached by superposing all the flow rate values of the water supply obtained in S11 in the period;
s13: and (4) deriving the total value data of the water supply flow of the non-negative pressure water supply pipe obtained in the step (S12).
Compared with the prior art, the utility model has the beneficial effects that: the method for exporting the data of the non-negative pressure water supply flow comprises the steps of measuring the diameter of the outer surface of a pipeline by using a vernier caliper, subtracting 2 times of thickness to obtain the diameter of the inner wall of the pipeline, calculating the area of the section of the inner wall of the pipeline by using an area formula, measuring the flow speed inside the pipeline by using a sensor, converting the flow speed in a numerical value mode by using a converter, calculating the data of the non-negative pressure water supply flow by using the formula, measuring the maximum flow speed and the minimum flow speed by using the sensor and the converter when the speed of water flow is uniform, taking the intermediate value of the maximum flow speed and the minimum flow speed as the average flow speed of the flow speed in the time period, and calculating the data of the non-negative pressure water supply flow by using the average flow speed.
1. Firstly, measuring the outer surface of a non-negative pressure water supply pipeline by using a vernier caliper, wherein the vernier caliper can directly measure the outer surface diameter of the non-negative pressure water supply pipeline and obtain the numerical value of the outer surface diameter, the diameter of the inner wall of the non-negative pressure water supply pipeline can be obtained by subtracting 2 times of the thickness from the measured outer surface diameter numerical value, the area of the section of the inner wall of the non-negative pressure water supply pipeline can be calculated by using an area formula, then measuring the flow rate of water supply in the pipeline by using a sensor, converting the flow rate of the water supply measured by the sensor into the numerical value form by using a converter, and finally calculating the data of the non-negative pressure water supply flow by using the formula;
2. when the speed of the water flow is changed uniformly, the flow velocity in the non-negative pressure water supply pipeline is measured through the sensor, the measured result is converted into a numerical value through the converter, the measurement is carried out in the same method after a period of time, the maximum water supply flow velocity and the minimum water supply flow velocity in the period of time can be measured, the middle value of the maximum water supply flow velocity and the minimum water supply flow velocity is used as the average flow velocity of the flow velocity in the period of time, then the data of the non-negative pressure water supply flow is calculated through a calculation formula, and the situation that the measurement error is large due to the fact that the water supply flow velocity is unstable in the measurement process is avoided.
Drawings
FIG. 1 is a schematic view of the flow structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-1, the present invention provides a technical solution: a method for deriving data of non-negative pressure water supply flow comprises the following steps:
s1: measuring the diameter of the inner wall of the pipeline without negative pressure water supply by using a measuring device, recording the measured value, and directly measuring the diameter of the outer surface by using a vernier caliper when measuring the diameter of the inner wall of the pipeline without negative pressure water supply in S1, wherein the diameter of the inner wall can be obtained by subtracting 2 times of the thickness of the pipe wall from the measured diameter of the outer surface;
s2: the cross-sectional area of the inner wall of the pipeline can be calculated according to the diameter of the inner wall of the pipeline for supplying water without negative pressure in S1, and the diameter d of the inner wall in S1 can be calculated according to the following formula: the area s = pi (d/2) is obtained, and the cross-sectional area s of the inner wall of the non-negative-pressure water supply pipeline is obtained;
s3: a flow velocity measuring instrument is arranged on the surface of a pipeline for supplying water without negative pressure, and the flow velocity measuring instrument comprises a sensor and a converter.
Further, the method comprises the following steps:
s4: measuring the water flow speed inside the pipeline without negative pressure water supply according to the sensor in S3, wherein the sensor in S4 is used for measuring the water flow speed and comprises three types, namely an ultrasonic sensing measurement method, a turbine sensing measurement method and a target sensing measurement method; the ultrasonic sensing measurement method is to measure the time difference between a transmitting end and a receiving end by utilizing the speed difference of ultrasonic propagation in different flow rates so as to know the flow rate of a fluid; the turbine sensing measurement method is that when fluid flows through turbine blades in a pipeline, the flow speed of the fluid is measured through the rotating speed of the turbine blades; the principle of the target-type sensing measurement method is that when medium flows through a target in a pipeline, the target is subjected to acting force of the fluid, the force is in direct proportion to the square of the flow of the fluid, and the flow velocity of the fluid can be measured according to the force;
s5: and converting the water flow speed measured by the sensor in the S4 into data according to the converter in the S3.
Further, the method comprises the following steps:
s6: the speed of water flow in the non-negative pressure water supply pipeline is constant within a period of time;
s7: the sensor in S4 can directly measure the speed of the water flow inside the non-negative pressure water supply pipeline, and the water flow speed is converted into a numerical value by the converter in S5, and the obtained numerical value is used as the fixed water supply speed.
Further, the method comprises the following steps:
s8: the flow speed of the water flow in the non-negative pressure water supply pipeline is continuously changed, and the speed of the water flow is uniformly increased or uniformly reduced;
s9: taking the intermediate value of the maximum flow rate and the minimum flow rate recorded in the step S8 as the water flow velocity inside the non-negative-pressure water supply pipeline;
s10: the converter in S5 may convert the average speed of the water flow inside the non-negative pressure water supply pipeline into a value as the floating water supply speed.
Further, the method comprises the following steps:
s11: from the water supply rates obtained in S7 and S10, the formula is used: calculating to obtain a single water supply flow value according to the unit time flow rate (the cross-sectional area s) and the water supply speed (the time);
s12: the total flow rate value of the water supply in a period can be reached by superposing all the flow rate values of the water supply obtained in S11 in the period;
s13: and (4) deriving the total value data of the water supply flow of the non-negative pressure water supply pipe obtained in the step (S12).
The working principle is as follows: in the method for deriving data by using non-negative pressure water supply flow, firstly, the method for deriving data by using non-negative pressure water supply flow needs to be simply known, firstly, a vernier caliper is used for measuring the outer surface of the non-negative pressure water supply pipeline, the vernier caliper can directly measure the outer surface diameter of the non-negative pressure water supply pipeline and obtain the numerical value of the outer surface diameter, the diameter of the inner wall of the non-negative pressure water supply pipeline can be obtained by subtracting 2 times of the thickness from the measured outer surface diameter numerical value, the area of the section of the inner wall of the non-negative pressure water supply pipeline can be calculated by an area formula, then, a sensor is used for measuring the flow rate of water supply in the pipeline, the flow rate of the water supply measured by the sensor can be converted by a converter in the form of the numerical value, finally, the data of the non-negative pressure water supply flow is calculated by the formula, when the speed of water flow is uniform, the flow velocity in the non-negative pressure water supply pipeline is measured by a sensor, the measured result is converted into a numerical value by a converter, the measurement is carried out by the same method after a period of time, so that the maximum water supply flow velocity and the minimum water supply flow velocity in the period of time can be measured, the intermediate value of the maximum water supply flow velocity and the minimum water supply flow velocity is taken as the average flow velocity of the flow velocity in the period of time, and then the data of the non-negative pressure water supply flow is calculated by a calculation formula, so that the characteristic of the method for deriving the data of the non-negative pressure water supply flow, which is the problem that the measurement error is large due to the unstable water supply flow velocity in the measurement process, is avoided, and the content which is not described in detail in the description belongs to the prior art which is known by technicians in the field.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (8)
1. A method for exporting data of non-negative pressure water supply flow is characterized by comprising the following steps:
s1: measuring the diameter of the inner wall of the pipeline without negative pressure water supply by a measuring device, and recording the measured value;
s2: calculating the cross-sectional area of the inner wall of the pipeline according to the diameter of the inner wall of the pipeline for supplying water without negative pressure in the step S1;
s3: a flow velocity measuring instrument is arranged on the surface of a pipeline for supplying water without negative pressure, and the flow velocity measuring instrument comprises a sensor and a converter.
2. The method for deriving data of non-negative pressure water supply flow according to claim 1, wherein: when the diameter of the inner wall of the pipeline for non-negative pressure water supply in the step S1 is measured, a vernier caliper is used for directly measuring the diameter of the outer surface, and the diameter d of the inner wall can be obtained by subtracting 2 times of the thickness of the pipe wall from the measured diameter of the outer surface.
3. The method for deriving data of non-negative pressure water supply flow according to claim 2, wherein: the inner wall diameter d in S1 can be calculated by the formula: the area s = pi (d/2) obtains the cross-sectional area s of the inner wall of the non-negative-pressure water supply pipeline.
4. The method for deriving data of non-negative pressure water supply flow according to claim 1, comprising the steps of:
s4: measuring the water flow speed inside the pipeline for supplying water without negative pressure according to the sensor in the S3;
s5: and converting the water flow speed measured by the sensor in the S4 into data according to the converter in the S3.
5. The method for deriving data of non-negative pressure water supply flow according to claim 4, wherein: the sensor used for measuring the speed of the water flow in the S4 comprises three types, namely an ultrasonic sensing measurement method, a turbine sensing measurement method and a target sensing measurement method; the ultrasonic sensing measurement method is to measure the time difference between a transmitting end and a receiving end by utilizing the speed difference of ultrasonic propagation in different flow rates so as to know the flow rate of a fluid; the turbine sensing measurement method is that when fluid flows through turbine blades in a pipeline, the flow speed of the fluid is measured through the rotating speed of the turbine blades; the principle of target-based sensing measurement is that when a medium flows through a target in a pipeline, the target is subjected to the acting force of the fluid, the force is proportional to the square of the flow of the fluid, and the flow velocity of the fluid can be measured according to the force.
6. The method for deriving data of non-negative pressure water supply flow according to claim 4, comprising the steps of:
s6: the speed of water flow in the non-negative pressure water supply pipeline is constant within a period of time;
s7: the sensor in S4 can directly measure the speed of the water flow inside the non-negative pressure water supply pipeline, and the water flow speed is converted into a numerical value by the converter in S5, and the obtained numerical value is used as the fixed water supply speed.
7. The method for deriving data of non-negative pressure water supply flow according to claim 4, comprising the steps of:
s8: the flow speed of the water flow in the non-negative pressure water supply pipeline is continuously changed, and the speed of the water flow is uniformly increased or uniformly reduced;
s9: taking the intermediate value of the maximum flow rate and the minimum flow rate recorded in the step S8 as the water flow velocity inside the non-negative-pressure water supply pipeline;
s10: the converter in S5 may convert the average speed of the water flow inside the non-negative pressure water supply pipeline into a value as the floating water supply speed.
8. The method for deriving data of non-negative pressure water supply flow according to claim 1, comprising the steps of:
s11: from the water supply rates obtained in S7 and S10, the formula is used: calculating to obtain a single water supply flow value according to the unit time flow rate (the cross-sectional area s) and the water supply speed (the time);
s12: the total flow rate value of the water supply in a period can be reached by superposing all the flow rate values of the water supply obtained in S11 in the period;
s13: and (4) deriving the total value data of the water supply flow of the non-negative pressure water supply pipe obtained in the step (S12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656744.5A CN114197583A (en) | 2021-12-31 | 2021-12-31 | Method for exporting data of non-negative-pressure water supply flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656744.5A CN114197583A (en) | 2021-12-31 | 2021-12-31 | Method for exporting data of non-negative-pressure water supply flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114197583A true CN114197583A (en) | 2022-03-18 |
Family
ID=80657563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111656744.5A Pending CN114197583A (en) | 2021-12-31 | 2021-12-31 | Method for exporting data of non-negative-pressure water supply flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114197583A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1344913A (en) * | 2000-09-15 | 2002-04-17 | 海德罗索尼科国际有限公司 | Ultrasonic multi-channel flow measuring method |
| CN1475776A (en) * | 2002-08-16 | 2004-02-18 | 俞思元 | Cross section type flow meter |
| CN102879045A (en) * | 2012-09-25 | 2013-01-16 | 天津市求精科技发展有限公司 | Ultrasonic flowmeter for partly-filled pipe |
| CN106441471A (en) * | 2016-10-14 | 2017-02-22 | 青岛海威茨仪表有限公司 | Heavy caliber ultrasonic flowmeter |
| CN109297552A (en) * | 2018-11-26 | 2019-02-01 | 浙江清环智慧科技有限公司 | Fast flow detection method, device and fast flow detector |
| CN110849429A (en) * | 2019-09-12 | 2020-02-28 | 成都安迪生精测科技有限公司 | Oil gas recovery ultrasonic flowmeter |
| CN212132054U (en) * | 2020-04-29 | 2020-12-11 | 福州市滨海水务发展有限公司 | Remote monitoring equipment for drainage flow |
| CN113030508A (en) * | 2021-02-25 | 2021-06-25 | 济南冠鼎信息科技有限公司 | Measuring device and measuring method of water pipe flow velocity range finder |
-
2021
- 2021-12-31 CN CN202111656744.5A patent/CN114197583A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1344913A (en) * | 2000-09-15 | 2002-04-17 | 海德罗索尼科国际有限公司 | Ultrasonic multi-channel flow measuring method |
| CN1475776A (en) * | 2002-08-16 | 2004-02-18 | 俞思元 | Cross section type flow meter |
| CN102879045A (en) * | 2012-09-25 | 2013-01-16 | 天津市求精科技发展有限公司 | Ultrasonic flowmeter for partly-filled pipe |
| CN106441471A (en) * | 2016-10-14 | 2017-02-22 | 青岛海威茨仪表有限公司 | Heavy caliber ultrasonic flowmeter |
| CN109297552A (en) * | 2018-11-26 | 2019-02-01 | 浙江清环智慧科技有限公司 | Fast flow detection method, device and fast flow detector |
| CN110849429A (en) * | 2019-09-12 | 2020-02-28 | 成都安迪生精测科技有限公司 | Oil gas recovery ultrasonic flowmeter |
| CN212132054U (en) * | 2020-04-29 | 2020-12-11 | 福州市滨海水务发展有限公司 | Remote monitoring equipment for drainage flow |
| CN113030508A (en) * | 2021-02-25 | 2021-06-25 | 济南冠鼎信息科技有限公司 | Measuring device and measuring method of water pipe flow velocity range finder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109269589B (en) | Water tank water quantity measuring and calculating system with liquid level regulation and control function and calculating method thereof | |
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| CN100348863C (en) | Method for measuring pump characteristic curve by means of pipeline characteristic curve | |
| WO2021208171A1 (en) | Testing and detection device and testing method for seawater desalination pump and energy recovery integrated machine | |
| CN114197583A (en) | Method for exporting data of non-negative-pressure water supply flow | |
| CN110231069A (en) | A kind of accurate measurement method of cooling tower water loss | |
| CN110926643A (en) | Condensate supercooling degree on-line monitoring device and method for condensing steam turbine unit | |
| CN211478122U (en) | Condensate supercooling degree on-line monitoring device for condensing steam turbine unit | |
| CN202066532U (en) | DL-shaped pipeline flow sensing device | |
| CN108375402B (en) | Online measurement system for overflow of hydropower station water turbine based on shunt sampling method | |
| KR20010056616A (en) | A real-time efficiency monitoring system of hydro-turbine generator and pump motor | |
| CN209689689U (en) | A kind of ultrasonic gas flowmeter that can accurately measure gas flow, flow velocity | |
| CN211476791U (en) | Real-time control system for operation efficiency of horizontal high-pressure heater | |
| CN211476790U (en) | Horizontal high pressure feed water heater heat exchange efficiency on-line monitoring system | |
| CN108019344B (en) | Method for testing efficiency of electric water supply pump set | |
| CN111366202A (en) | Cold and heat source system flow testing device | |
| CN2852086Y (en) | Apparatus for metering heat | |
| CN208431037U (en) | A kind of monitoring system of turbine low pressure cylinder efficiency | |
| CN112833030A (en) | Pump station field flow monitoring method based on front-located shaft type water inlet flow channel | |
| CN201449297U (en) | Simple high precision energy metering device | |
| CN112348305A (en) | Method and device for back calculating water head of hydraulic power plant | |
| CN206338588U (en) | A kind of long distance pipeline detection means | |
| CN101655381B (en) | Circulating cooling water flow measuring method of condenser for steam turbine and on-line measuring device thereof | |
| CN216050193U (en) | Large-caliber flow standard device based on volumetric method and standard meter method | |
| CN101324457A (en) | Intelligent detection method of steam tiny flow quantity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |