CN110274671B - Forced calibrating device for water supply meter - Google Patents
Forced calibrating device for water supply meter Download PDFInfo
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- CN110274671B CN110274671B CN201910528209.8A CN201910528209A CN110274671B CN 110274671 B CN110274671 B CN 110274671B CN 201910528209 A CN201910528209 A CN 201910528209A CN 110274671 B CN110274671 B CN 110274671B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/17—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using calibrated reservoirs
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Abstract
The invention discloses a forced calibrating device of a water supply meter, which relates to the technical field of water meter calibration and comprises a rack and a communicating pipeline component, wherein the communicating pipeline component is arranged in the rack and is used for communicating the water meter to form a calibration pipeline; the water tank is arranged above the rack and used for providing high-pressure static water for the communicating pipeline component; the collecting box is arranged on one side of the rack and is used for collecting the liquid flowing out of the communicating pipeline component; and the dynamic image processing device is arranged above the communicating pipeline assembly and is used for recording the rotation turns of the dial plate of the water meter and converting the water quantity flowing through the water meter. Aiming at the problem of insufficient detection precision in the state of extremely low water flow velocity in the prior art, the invention uses the self weight of liquid as pressure to input the liquid into the communicating pipeline assembly for detection, and the pressure of the input liquid is gradually reduced along with the reduction of the liquid level, so as to simulate the detection work of the water meter under various flow velocities and realize the accurate detection of the water meter.
Description
Technical Field
The invention relates to the technical field of water meter verification, in particular to a forced verification device for a water supply meter.
Background
The water meter calibrating device is used as a standard for unifying and transmitting the unit flow quantity value, can provide important guarantee for accurate and unified quantity value transmission of water meters in various regions in China on one hand, and can provide reliable basis for work such as economic accounting, trade settlement and the like on the other hand. When the national (enterprise) standard and the calibration regulation of the water meter are formulated, a well-researched and reliable test method of the water meter calibration device can be used for verifying various test data. In addition, when various types of water meters are subjected to type evaluation, verification and calibration, the water meter verification device is a guide line for judging the metering performance of the water meter, and provides reliable technical basis for quality supervision departments and metering technical mechanisms.
For the existing water meter verification method, such as the Chinese patent with the patent publication number of CN206695875U, the water meter calibrating device comprises a water tank connected with a pipe in sequence, a water pump, a pressure stabilizing tank, a compression cylinder, a meter checking pipeline and a container, and an image capturing mechanism erected above the meter checking pipeline, the water meter to be detected is installed on the meter checking pipeline, the image capturing mechanism comprises two guide rails which are oppositely arranged on two sides of the meter checking pipeline, at least one support which can slide along the guide rails and a camera which can be movably installed on each support, the compression cylinder comprises a cylinder body, a piston which is contained in the cylinder body in a sliding mode and a first connecting rod and a second connecting rod which are oppositely arranged on two end faces of the piston, the first connecting rod is communicated with the second connecting rod, one end of the first connecting rod penetrates through one end of the cylinder body and is connected with the pressure stabilizing tank, and one end of the second connecting rod penetrates through the.
In the above-mentioned patent, adopt the cooperation of water pump, compression cylinder and surge tank to carry rivers in detecting the pipeline, at the testing process, rivers in the detecting pipeline are in a high-speed and stable state all the time. However, when the water meter is actually used, part of users use the water meter to detect the defect of insufficient precision in the state of extremely low water flow velocity, steal water resources and cause great economic loss to water supply plants.
Disclosure of Invention
Aiming at the problem of insufficient detection precision in the state of extremely low water flow velocity in the prior art, the invention aims to provide a forced detection method of a water supply meter, which has the advantage of high detection precision.
In order to achieve the purpose, the invention provides the following technical scheme:
a forced calibrating device of a water supply meter comprises a frame and a calibrating device,
the communication pipeline assembly is arranged in the rack and is used for communicating the water meter to form a verification pipeline;
the water tank is arranged above the rack and used for providing high-pressure static water for the communication pipeline component;
the collecting box is arranged on one side of the rack and is used for collecting the liquid flowing out of the communicating pipeline component;
and the dynamic image processing device is arranged above the communicating pipeline component and is used for recording the rotation turns of the dial plate of the water meter and converting the water quantity flowing through the water meter.
According to the technical scheme, when the dynamic image processing device is used, water in the water tank forms water pressure at the bottom of the water tank by utilizing the potential energy of the water in the water tank, the water is input into the communicating pipeline assembly and then flows out of the communicating pipeline assembly into the collecting box, the dynamic image processing device records the number of rotation turns of the dial plate of the water meter and converts the water quantity flowing through the water meter, the converted water quantity and the reduced water quantity in the water tank are compared firstly, and whether the water meter calibration is accurate or not is judged; then, comparing the converted water quantity with a display numerical value of a code table in the water meter, and judging whether a transmission mechanism in the water meter has transmission errors or is damaged; finally, comparing whether the reduction amount of the water amount in the water tank is close to the water amount collected in the collecting box or not, and judging whether the leakage problem exists in the detection pipeline or not; when the water meter is used, the potential energy of water in the water tank is gradually reduced along with the reduction of the liquid level height in the water tank, and the water pressure at the bottom of the water tank is reduced, so that the water meter detection precision under various water flow rates is simulated, and the detection result is more accurate.
Furthermore, the method also comprises the following steps of,
and the transparent scale bar is embedded in the side wall of the water tank and used for reading the volume of the liquid in the water tank.
Through above-mentioned technical scheme, be convenient for read the water yield in the water pitcher.
Furthermore, the method also comprises the following steps of,
and the color floating film is arranged in the water tank and used for flatly floating on the liquid level in the water tank.
Through above-mentioned technical scheme, after injecting water in the water pitcher, coloured floating film levels and floats on the liquid level in the water pitcher, conveniently reads the volume numerical value of water in the water pitcher, in addition, treat that the water in the water pitcher is defeated the back, coloured floating film is attached in the water pitcher bottom, with the pipeline closure, is convenient for accurately control the water delivery volume of water pitcher.
Furthermore, the method also comprises the following steps of,
the buoy is eccentrically arranged on the colored floating film.
Through the technical scheme, the buoy is arranged, so that the rotation or fluctuation of the colored floating membrane can be observed conveniently, and whether the water in the water tank is in a static state or not is judged.
Furthermore, the method also comprises the following steps of,
and the image acquisition device is fixed at the opening of the water tank and used for acquiring the image information in the water tank.
Through above-mentioned technical scheme, the workman directly obtains the image in the water jar through image acquisition device, conveniently observes the detection, improves the work convenience.
Furthermore, the intercommunication pipeline subassembly including set up respectively in the connecting pipe and the pipe that slides at frame both ends, in the frame the connecting pipe with be fixed with the slide rail between the pipe that slides, the connecting pipe is kept away from the one end of slide rail with the water pitcher intercommunication, the pipe that slides is kept away from the one end of slide rail with the collecting box intercommunication, it is connected with a plurality of sliders to slide on the slide rail, be provided with the festival pipe on the slider.
Through above-mentioned technical scheme, to installing the water gauge between the adjacent section pipe and between section pipe and the pipe that slides, the pipe that slides makes and supports tightly between a plurality of water gauges and a plurality of section pipes, realizes the intercommunication of water gauge in the intercommunication pipeline subassembly.
Furthermore, a linear motor is arranged at one end, far away from the connecting pipe, of the rack, and an output shaft of the linear motor is the sliding pipe.
Through the technical scheme, the linear motor is utilized to realize the linear pushing sliding of the sliding pipe.
Furthermore, a pipe sleeve is fixed on the sliding block, the joint pipe is connected in the pipe sleeve in an inserting mode, and a locking bolt used for fixing the joint pipe is connected to the side wall of the pipe sleeve in a threaded mode.
Through above-mentioned technical scheme, the setting can be dismantled in the pipe box to the festival pipe, is convenient for change different festival pipes to adapt to the water gauge of different models.
Furthermore, the dynamic image processing device comprises a lifting frame arranged on the rack in a lifting manner, and a dynamic image processor is fixed on the lifting frame.
Through the technical scheme, the lifting frame is lifted in a normal state, so that the water meter is conveniently installed in the communicating pipeline assembly; in the verification process, the lifting frame is driven to descend to drive the dynamic image processor to be close to the water meter, and dynamic image information on the dial plate of the water meter is obtained.
Furthermore, a plurality of slide bars are fixed on the rack, the lifting frame is connected with the slide bars in a sliding manner, and a cylinder used for pushing the lifting frame to lift is arranged on the rack.
Through above-mentioned technical scheme, utilize cylinder jack-up crane, realize the lift of crane in the vertical plane.
Compared with the prior art, the invention has the beneficial effects that:
(1) during detection, the potential energy of water in the water tank is gradually reduced along with the reduction of the liquid level height in the water tank, and the water pressure at the bottom of the water tank is reduced, so that various water flow velocities are simulated, and the detection result is more accurate;
(2) furthermore, after the water in the water tank is completely delivered, the colored floating film is attached to the bottom of the water tank to close the pipeline, so that the water delivery quantity of the water tank can be accurately controlled;
(3) furthermore, the pipe joints are detachably connected to the pipe sleeve through the locking bolts, so that the pipe joints with different pipe diameters can be conveniently replaced, and the invention is suitable for detecting water meters with different models.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Reference numerals: 1. a frame; 2. a water tank; 3. a collection box; 4. a transparent scale bar; 5. a colored floating film; 6. a float; 7. an image acquisition device; 8. a slipping pipe; 9. a slide rail; 10. a slider; 11. pipe joints; 12. a linear motor; 13. pipe sleeve; 14. locking the bolt; 15. a lifting frame; 16. a dynamic image processor; 17. a slide bar; 18. a cylinder; 19. an overflow pipe; 20. a water meter; 21. and (4) connecting the pipes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following provides a detailed description of the present invention with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.
As shown in figure 1, a forced calibrating device of a water supply meter comprises a frame 1, a communicating pipeline component which is used for communicating a water meter 20 to form a calibrating pipeline is arranged in the frame 1, a water tank 2 and a collecting box 3 which is used for collecting liquid flowing out from the communicating pipeline component are respectively arranged at two ends of the frame 1, an opening of the water tank 2 is communicated with an overflow pipe 19, and the height of the water tank 2 is greater than that of the communicating pipeline component in the frame 1 and is used for providing high-pressure static water for the communicating pipeline component; and a dynamic image processing device for recording the conversion of the rotation turns of the dial plate of the water meter 20 into the volume of the liquid flowing through the water meter 20 is arranged above the communicating pipeline component.
During the use, install a plurality of water meters 20 that wait to detect earlier to the intercommunication pipeline subassembly in, to water pitcher 2 input certain volume water again, the mode of water delivery adopts the water pipe input, the volume of record water, measure the temperature and the velocity of flow of water, guaranteeing that water is close with the room temperature, under the condition of no inherent turbulent flow, the intercommunication pipeline utilizes the self potential energy of water pitcher 2 water-logging to form water pressure, with water input to the intercommunication pipeline subassembly in, flow to the collecting box 3 by the intercommunication pipeline subassembly again in, the water yield of record collection. The dynamic image processing device records the rotation turns of the dial plate of the water meter 20 and converts the water quantity flowing through the water meter 20, and firstly compares the converted water quantity with the reduced water quantity in the water tank 2 to judge whether the verification of the water meter 20 is accurate or not; then, comparing the converted water quantity with a digital display value in the water meter 20, and judging whether a transmission mechanism in the water meter 20 has transmission errors or is damaged; finally, comparing whether the reduction amount of the water volume in the water tank 2 is close to the water volume collected in the collecting box 3 or not, and judging whether the leakage problem exists in the detection pipeline or not; when the water meter is used, the potential energy of the water in the water tank 2 is reduced along with the reduction of the liquid level height in the water tank 2, and the water pressure at the bottom of the water tank 2 is reduced, so that the detection precision of the water meter 20 under various water flow velocities is simulated, and the detection result is more accurate.
Inlay along vertical direction in the 2 lateral walls of water pitcher and be equipped with transparent scale strip 4, be convenient for read the interior liquid volume of water pitcher 2, coaxial shop has coloured floating film 5 in the water pitcher 2, the material that coloured floating film 5 was the polyethylene film, after the water injection in the water pitcher 2, coloured floating film 5 leveled and floats on the liquid level in water pitcher 2, conveniently read the volume numerical value of water in the water pitcher 2, in addition, treat the water in the water pitcher 2 and defeated the back, coloured floating film 5 is attached in 2 bottoms of water pitcher, with the pipeline closure, be convenient for accurately control the water delivery volume of water pitcher 2. One side that coloured superficial membrane 5 kept away from water pitcher 2 bottom is fixed with buoy 6, buoy 6's material be plastic foam, and the off-centre is fixed in on coloured superficial membrane 5, and the water in the water pitcher 2 is through the water pump input, so the rivers self of just inputing have certain momentum, rotate at water pitcher 2, through setting up buoy 6, whether the water in the water pitcher 2 of being convenient for is in static state, adopts static water to examine and determine 20 results of water gauge more accurate. An image acquisition device 7 for acquiring image information in the water tank 2 is fixed at the opening of the water tank 2, and the image acquisition device 7 is a camera. Because water pitcher 2 sets up highly, climbs water pitcher 2 from top to bottom and reads the reading, not only inconvenient, still can have the potential safety hazard, is convenient for read the water yield in the water pitcher 2 through setting up image acquisition device 7.
Intercommunication pipeline subassembly is including setting up respectively in the connecting pipe 21 and the pipe 8 that slides at 1 both ends of frame, connecting pipe 21 is fixed in frame 1, its one end and water pitcher 2 intercommunication, be fixed with slide rail 9 between connecting pipe 21 and the pipe 8 that slides in frame 1, slide rail 9's one end and collecting box 3 intercommunication are kept away from to the pipe 8 that slides, slide on slide rail 9 and be connected with a plurality of sliders 10, be fixed with festival pipe 11 on the slider 10, linear electric motor 12 is installed in the one end of keeping away from connecting pipe 21 in frame 1, linear electric motor 12's output shaft is the pipe 8 that slides, the pipe 8 that slides runs through linear electric motor 12 and sets up. During the use, to installing water gauge 20 between the adjacent festival pipe 11 and between festival pipe 11 and the pipe 8 that slides, restart linear electric motor 12 drives the pipe 8 that slides, makes and supports tightly between a plurality of water gauges 20 and a plurality of festival pipe 11, is the plug-in connection between festival pipe 11 and the water gauge 20 and is provided with the sealing washer in the festival pipe 11, ensures to compress tightly the stability after understanding. The pipe sleeve 13 is fixed on the sliding block 10, the joint pipe 11 is coaxially connected in the pipe sleeve 13 in an inserted mode, the locking bolt 14 used for fixing the joint pipe 11 is in threaded connection with the side wall of the pipe sleeve 13, the water meters 20 of different models are different in pipe diameter, the joint pipe 11 can be detachably arranged, the device is suitable for detecting the water meters 20 of different models by replacing the joint pipe 11, and the applicability of the invention is enhanced.
The dynamic image processing device is a prior art, and a chinese patent with a patent publication number of CN207487782U discloses a detection device for an intelligent water meter 20, wherein a detection mechanism is the dynamic image processing device in the present invention. The dynamic image processing device comprises a lifting frame 15 arranged on the rack 1 in a lifting mode, a dynamic image processor 16 is fixed on the lifting frame 15, the dynamic image processor 16 comprises a PLC, a control panel and a camera shooting mechanism, and the PLC is connected with a computer. Four corners of the rack 1 are vertically fixed with slide bars 17, the lifting frame 15 is connected with the slide bars 17 in a sliding manner, and the rack 1 is fixed with a cylinder 18 for pushing the lifting frame 15 to lift.
In summary, the following steps:
when the invention is used for detection, the potential energy of the water in the water tank 2 is gradually reduced along with the reduction of the liquid level height in the water tank 2, and the water pressure at the bottom of the water tank 2 is reduced, so that various water flow velocities are simulated, and the detection result is more accurate; the colored floating film 5 is arranged in the water tank 2, after water is injected into the water tank 2, the colored floating film 5 flatly floats on the liquid level in the water tank 2, so that the volume value of the water in the water tank 2 can be conveniently read, in addition, after the water in the water tank 2 is completely delivered, the colored floating film 5 is attached to the bottom of the water tank 2, a pipeline is closed, and the water delivery quantity of the water tank 2 can be conveniently and accurately controlled; the joint pipe 11 is detachably connected to the pipe sleeve 13 through the locking bolt 14, so that the joint pipe 11 with different pipe diameters can be conveniently replaced, and the invention is suitable for detecting water meters 20 with different models.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. A forced calibrating device of a water supply meter comprises a frame (1) and is characterized by also comprising,
the communication pipeline assembly is arranged in the rack (1) and is used for communicating a water meter to form a verification pipeline;
the water tank (2) is arranged above the rack (1) and used for providing high-pressure static water for the communication pipeline component;
the collecting box (3) is arranged on one side of the rack (1) and is used for collecting the liquid flowing out of the communicating pipeline component;
the dynamic image processing device is arranged above the communicating pipeline assembly and is used for recording the rotation turns of the dial plate of the water meter and converting the water quantity flowing through the water meter;
the transparent scale bar (4) is embedded in the side wall of the water tank (2) and is used for reading the volume of liquid in the water tank (2);
the colored floating film (5) is arranged in the water tank (2) and is used for flatly floating on the liquid level in the water tank (2);
the buoy (6) is eccentrically arranged on the colored floating film (5).
2. The compulsory certification device of a water supply meter according to claim 1, further comprising,
the image acquisition device (7) is fixed at the opening of the water tank (2) and used for acquiring image information in the water tank (2).
3. The forced calibrating device of a water supply meter according to claim 1, characterized in that the communicating pipeline assembly comprises a connecting pipe (21) and a sliding pipe (8) respectively arranged at two ends of the rack (1), a sliding rail (9) is fixed on the rack (1) between the connecting pipe (21) and the sliding pipe (8), one end of the connecting pipe (21) far away from the sliding rail (9) is communicated with the water tank (2), one end of the sliding pipe (8) far away from the sliding rail (9) is communicated with the collecting box (3), a plurality of sliding blocks (10) are connected on the sliding rail (9) in a sliding manner, and the sliding blocks (10) are provided with joint pipes (11).
4. A forced calibrating apparatus for a water supply meter according to claim 3, characterized in that a linear motor (12) is provided on the frame (1) at an end far from the connecting pipe (21), and the output shaft of the linear motor (12) is the sliding pipe (8).
5. A forced calibrating device for a water supply meter according to claim 4, characterized in that a pipe sleeve (13) is fixed on the slide block (10), the joint pipe (11) is inserted into the pipe sleeve (13), and a locking bolt (14) for fixing the joint pipe (11) is connected to the side wall of the pipe sleeve (13) in a threaded manner.
6. A forced calibrating apparatus for a water supply meter according to claim 1, characterized in that the dynamic image processing apparatus comprises a lifting frame (15) which is arranged on the frame (1) in a lifting manner, and a dynamic image processor (16) is fixed on the lifting frame (15).
7. The forced calibrating device of the water supply meter of claim 6, wherein a plurality of sliding rods (17) are fixed on the rack (1), the lifting frame (15) is connected with the sliding rods (17) in a sliding manner, and a cylinder (18) used for pushing the lifting frame (15) to lift is arranged on the rack (1).
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| CN201910528209.8A CN110274671B (en) | 2019-06-18 | 2019-06-18 | Forced calibrating device for water supply meter |
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| CN201910528209.8A CN110274671B (en) | 2019-06-18 | 2019-06-18 | Forced calibrating device for water supply meter |
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| CN110274671B true CN110274671B (en) | 2020-09-15 |
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| CN112179459B (en) * | 2020-09-30 | 2023-12-05 | 湖南常德牌水表制造有限公司 | Water meter load detection device for simulating water meter use environment |
| CN113447098A (en) * | 2021-05-08 | 2021-09-28 | 上海市供水水表强制检定站有限公司 | Accurate calibration equipment of water supply meter |
| CN114083276B (en) * | 2021-10-29 | 2023-03-28 | 山东东剑智能科技有限公司 | Installation device of core for water meter production |
| CN116698164B (en) * | 2023-08-08 | 2023-10-13 | 河北丰源智控科技股份有限公司 | Thing networking water gauge calibrating installation |
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| US7093484B2 (en) * | 2004-01-20 | 2006-08-22 | Elster Messtechnik Gmbh | Calibrating device for a water meter |
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| CN101165285B (en) * | 2006-10-18 | 2011-06-01 | 李苏军 | Water seal floating cap double deodorization mothproof drainage device |
| US10317270B2 (en) * | 2013-04-15 | 2019-06-11 | Floyd Stanley Salser | Meter stabilizer |
| CN203376908U (en) * | 2013-07-02 | 2014-01-01 | 北京工业大学 | Simple multifunctional integrated flow testing experiment table |
| CN206695875U (en) * | 2017-04-01 | 2017-12-01 | 常州酷特仪器仪表有限公司 | A kind of apparatus for calibrating water meter |
| CN208026889U (en) * | 2018-03-16 | 2018-10-30 | 北京创信恒通科技有限公司 | Udometric calibrating instrument |
| CN208155418U (en) * | 2018-05-22 | 2018-11-27 | 江苏金钰铭电子有限公司 | A kind of testing agency of full-automatic water meter detecting platform |
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| CN2503134Y (en) * | 2001-08-23 | 2002-07-31 | 黄学俭 | Water-saving toilet with manure collecting device |
| US7093484B2 (en) * | 2004-01-20 | 2006-08-22 | Elster Messtechnik Gmbh | Calibrating device for a water meter |
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