CN2767974Y - Microcomputer controlled water meter calibrating apparatus - Google Patents
Microcomputer controlled water meter calibrating apparatus Download PDFInfo
- Publication number
- CN2767974Y CN2767974Y CN 200420114413 CN200420114413U CN2767974Y CN 2767974 Y CN2767974 Y CN 2767974Y CN 200420114413 CN200420114413 CN 200420114413 CN 200420114413 U CN200420114413 U CN 200420114413U CN 2767974 Y CN2767974 Y CN 2767974Y
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- water
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Abstract
The utility model relates to a water meter detecting device controlled via a microcomputer, which belongs to the field of water meter detecting equipment. The utility model comprises a detecting worktable and a detecting conveying table. The utility model has the design point that the detecting worktable is connected with a water pipe, the water pipe is connected with an electromagnetic valve, a meter clamping device, meters to be detected and a standard meter, and the meters to be detected and the standard meter are provided with photoelectric flow sensors. Water flowing insides is pumped inside from an inlet of a water pipe and is connected with the meters to be detected, and the meters are arranged in at least one row; the meter clamping device and the electromagnetic valve are connected with the meters to be detected in the direction of water flow of the meters to be detected, and the intermediate section where the water flowing inside is connected with the standard meter; the water pipe is respectively connected with a flow regulating valve, a standard flowmeter and the electromagnetic valve; the end section where the water flowing inside is connected with a working metering device, one side of the working metering device is connected with a photoelectric liquid level sensor, the bottom part thereof is connected with a bottom valve, and the lower part of the bottom valve is connected with a drainage pipeline. The device solves the problem of the lag of the detecting technology of water meters, and has the characteristic of high detecting automation. The utility model is suitable for being matched with water meters of quality specification supervision departments and water works.
Description
Technical field
The utility model relates to the water meter calibration apparatus field.
Background technology
At present, the tap water meter of often coming into contacts with in people's daily life is the meter of statistics resident family water.Water meter is to examine and determine its quality of stability and reliability by the administrative authority of tap water and quality supervision department, and resident family can not examine and determine the accuracy of water meter without authorization.Water resource management department, for example Running-water Company is the indirect user of water meter, every family is the water meter end user.Water meter is mainly bought by Running-water Company, and the said firm is bearing the task of maintenance of equipment such as the operation, pipeline of tap water, Running-water Company to water meter do sampling, in batches, periodic verification.Because the water meter that error is bigger all brings adverse factors to consumer and supvr.Common water meter calibrating installation is to detect its function according to " water meter calibration rules ", and it is low that existing calibrating mode exists automaticity, the problem of poor reliability.And be subject to the influence of manual operation factor, cause the calibrating means to owe advanced, it is reasonable that test layouts is owed.
Summary of the invention
The purpose of this utility model be to this area provide that a kind of automaticity is higher, reliability better, the system controlled by computer water meter calibration device of advanced technology, owe advanced to solve present calibrating means, test layouts is owed rational problem.Now in conjunction with the accompanying drawings, its feature is described as follows:
System controlled by computer water meter calibration device, this device includes computing machine and management software, printer, microcomputer control cabinet, water pipe is connected stabilivolt, calibration operation platform, measuring device, the calibrating transport platform is with the signal input microcomputer control cabinet of being examined and determine, it is characterized in that connecting water pipe 4 at calibration operation platform 19, water pipe connects solenoid valve 3, meter-clamping apparatus 11, tested table 8, standard scale 7, is provided with photocurrent quantity sensor 9 on tested table and standard scale; Water inlet pumps into calibration operation platform 19 from pipe inlet has at least the tested table 8 of an arrangement to be connected, the water inlet direction of every tested table link to each other meter-clamping apparatus 11 and solenoid valve 3, the stage casing of the feed water flow warp standard scale 7 that links to each other; Water pipe 4 is connected with flow control valve 6, proving flowmeter 5, solenoid valve 3 respectively; Connect work measuring instrument 2 at the latter end water pipe of feed water flow warp, work measuring instrument is provided with different capacity, is connected with photoelectric liquid level sensor 1 in a side of work measuring instrument, is connected with bottom valve 10, connection drainage pipeline under the bottom valve in its bottom.
The measured signal of photocurrent quantity sensor 9, the photoelectric liquid level sensor signal 13 that photoelectric liquid level sensor 1 records, pressure switch signal 12, the solenoid control signal 14 that solenoid valve 3 records, connection inputs to signal transfer management controller 15, by signal transfer management controller 15 measured signal is connected input computing machine and management software 17 and printer 16.
System controlled by computer water meter calibration device utilizes photoelectric sensor to measure the pulse that produces when the plum blossom pinwheel rotates on the water meter, signal transfer management controller is sent in the pulse that photoelectric sensor produces, signal transfer management controller is in time sent into microcomputer to the signal that all water meters on the whole testing device produce, and synchronous signal transfer management controller is according to the switching of the photoelectric liquid level sensor Control Flow solenoid valve on the work measuring instrument.Signal that microcomputer is transmitted according to signal transfer management controller and tester are to work measuring instrument, the set initial value of photoelectricity liquid level, automatically calculate and show each test process and result, and when all estimating the form of listing test result after process finishes automatically, automatically preserve test result, as required the test result of Print Form form at any time.
This calibrating installation has the calibrating advanced technology, automatically the signal of measuring is printed for managerial personnel and is consulted, and makes supervisory signal timely, stops the generation that defective water meter is bought phenomenon.To satisfy tap water user and water resource management department demand to product quality.
Fig. 1 is the utility model topology layout synoptic diagram;
Fig. 2 is automatic test layouts synoptic diagram;
Fig. 3 is the floor plan synoptic diagram;
Fig. 4 is signal transfer management controller circuitry (A) figure;
Fig. 5 is signal transfer management controller circuitry (B) figure, because of the breadth broad of figure, should be joined at horizontal two-wire bar place when consulting, and is complete circuit.
Fig. 6 is display part, the number of finger indication, power unit circuit diagram.
The sequence number of above accompanying drawing and title: 1, photoelectric liquid level sensor, 2, work measuring instrument, 3, solenoid valve, 4, water pipe, 5, proving flowmeter, 6, flow control valve, 7, standard scale, 8, tested table, 9, the photocurrent quantity sensor, 10, bottom valve, 11, meter-clamping apparatus, 12, the pressure switch signal, 13, photoelectric liquid level sensor signal 14, solenoid control signal, 15, signal transfer management controller, 16, printer, 17, computing machine and management software, 18, buffer tank, 19, calibration operation platform, 20, microcomputer control cabinet.
Embodiment
Embodiment is an example with the operation process.At first, the factory number of tested one or more tested tables 8 location number by calibration operation platform 19 is input in computing machine and the management software 17 one by one, send into meter-clamping apparatus 11 then and carry out tong-test ammeter, exhaust, pressure testing system operation, and selected on computers test mode and measuring accuracy, press play button, make system enter automatic test mode.Therebetween, the tester only needs no abnormal situation appearance in the observation test process, and need not anyly operate, the form that on test procedure is all over the back screen, shows test results automatically, and whether the tester selects test result to be printed as required.
Technical requirement
1) photocurrent quantity sensor
The power supply of photocurrent quantity sensor 9: 10-30VDC
Output: PNP or NPN
Response frequency: maximum 500Hz
Working temperature :-20-70 ℃ humidity: 0-90%
Physical dimension: DN58 * 121mm
2) signal transfer management controller
The power supply of signal transfer management controller 15: 220VAC-+10%
Power: less than 120W
Communication interface: RS-232C
Baud rate: 9600
3) computing machine and management software
The running environment of computing machine and management software 17: Chinese Win95/98
Hardware requirement: on the CPU:P233, more than the hard disk 1G.
4) calibration operation platform
Proving flowmeter 5: adopt glass rotameter, measured precision is not less than 2.5%.
A.LJB-15 flow range: 10-140L/h
B.LJB-25 flow range: 70-700L/h
C.LJB-50 flow range: 450-7000L/h
D.LJB-80 flow range: 7000-30000L/h (bore: 15-50mm)
Clamp device is flexible: single meter apparatus is 50mm
Tandem arrangement is 75mm
Test type device front and back length of straight pipe is not less than 15 times of tested table 8 bore
Tandem type device intermediate head length is two times of tested table 8 bore
5) work measuring instrument
Work measuring instrument 2 a), useful volume:
Measuring device is 10L-20L 1.
Measuring device is 50L-100L 100L-3000L or 500L (bore: 15-50mm) 2.
B), accuracy: 0.15%
6) working pressure: source pressure 0.3-0.4Mpa (source pressure of instantaneous delivery fluctuation system≤when 6 tables of 0.01 series connection are above should 〉=0.5Mpa)
Pressurized energy scope: 0.5-2.0Mpa
Bleed pressure: 0.4-0.6Mpa
Use running program
1) installation of test macro
The Auto-Test System of LJS-III type water meter calibration device comprises the computing machine and the management software 17 of photocurrent quantity sensor 9, signal transfer management controller 15, system testing, and the RS-232C communication cable.The user at first wants handle assembly to install before use, circuit diagram with reference to Fig. 4 to Fig. 6 connects electric wire, after SIGNALS MANAGEMENT transmission control unit (TCU) 15 and computing machine connected with the RS-232C telecommunication cable, the management software of installation system on computers, management software is installed with reference to the software operation instruction.Confirming under the no problem situation of total system wiring that the power supply that can the opening signal Management Controller and the power supply of computing machine if transmission has abnormal conditions then must cut off the electricity supply at once, are found out the work of switching on again after the accident.
2) selection of calibration operation platform
Two row's worktable before and after one cover proving installation of calibration operation platform 19 has, the photocurrent quantity sensor 9 of the shared cover water meter of two row's worktable, therefore each test can only be selected row's worktable wherein, the selection of worktable is selected with " worktable selection " button on signal transfer management controller 15 panels, press this key once, worktable just switches once.
3) installation of water meter
Every worktable once can be tested ten water meters at most simultaneously, installing to worktable at water meter goes forward and must be input to the original number that dispatches from the factory of water meter on the computing machine, each tested table factory number must be input on the computing machine, if do not import factory number then system think and water meter be not installed on the corresponding test station just do not have test result.Press " tong-test ammeter " button on the SIGNALS MANAGEMENT transmission control unit (TCU) 15 after water meter installs, then meter-clamping apparatus 11 clamps water meter, and corresponding red led is bright, if abnormal conditions are arranged, presses " clamping " key pine table once more.
4) leak test
Press panel " leak test " key, corresponding red led is bright, and whether the junction of observing water meter has seepage.Then once more by " leak test " key, finish leak test as ne-leakage, the respective green pilot lamp is bright.
5) exhaust
After leak test finishes, then carry out the exhaust of water meter and duct coupling, discharge the air of the inside, guarantee the precision of measurement, press " exhaust " key of panel, then red relay indicating light is bright, three flow solenoid valves 3 are opened at interval two seconds in succession, three flow solenoid valves 3 are separated by and are closed successively for two seconds after 30 seconds, and exhaust finishes, and green indicating lamp is bright.
6) pressure testing
Press " pressure testing " key of panel, then system pressurizes automatically, and when pressure was increased to the 1.6Mpa setting value, pressurization stopped, and entered packing state, and pressure keeps pilot lamp bright.If internal pressure was greater than the lower limit of setting in one minute, then pressure test is qualified, pressure after one minute fails to reach the higher limit of setting or there is leakage in the system of then thinking that pressurize does not reach one minute if pressurization surpasses, and the decompression pilot lamp is bright and report to the police, and carries out pressure test after must fixing a breakdown again.
7) place the photocurrent quantity sensor
After the test of finishing above several steps, the tester is placed on photocurrent quantity sensor 9 on the water meter.Photocurrent quantity sensor bottom has one to transmit and receive window, must do some fine settings to plum blossom one pinwheel on this window aligning water meter to the position then during placement, makes two pilot lamp red lights above it bright, and green light goes out.
8) examination stream
The effect of examination stream, the one, be used to regulate flow control valve 6, two, be used to read the actual volume of work measuring instrument 2.
Examination stream realizes that with two buttons " selection " key is in order to select the actual volume of examination stream, and " work " key is used for beginning or finishes examination stream, and examination stream finishes to have dual mode, and a kind of mode is by " work " bond bundle, and another kind finishes automatically.When the liquid level in the work measuring instrument 2 rose to the position of corresponding photoelectric liquid level sensor 1, system closed flow control valve 6 automatically.
Because can there be certain difference in actual volume and setting volume, so precision in order to guarantee to test, after once coming into operation or readjust, system must try stream, and must write down the actual volume of work measuring instrument 2 when examination stream finishes automatically each time, and in these value input computing machines, each can try several times more in case of necessity.This point is very important to whole test system, if do badly and will directly influence the measuring accuracy of whole test system.
More than tong-test ammeter, leak test, exhaust and pressure testing in several steps, the tester must do before every batch of water meter test, it is fixed that the reading of actual volume value can be come according to actual conditions, flows but must do examination under following situation:
(1) system uses for the first time
(2) model of replacing water meter (bore of water meter changes)
(3) readjust flow control valve
(4) device is moved
(5) device is not used for a long time.
9) test automatically
The tester can enter automatic test mode after finishing above a few step, as long as " test automatically " the back system that in the selected project that needs test of computing machine, clicks then enters automatic test mode.The tester will note signal lamp and computer screen on the observation signal transfer management controller 15 when testing automatically, and following two signal lamps of normal condition should replace bright equably or go out, and the bar chart on the screen should increase uniformly.If it is inhomogeneous that signal lamp does not change for a long time or changes, position that then might photocurrent quantity sensor 9 has taken place mobile or has not put well, and the water meter on the then corresponding station must be tested again in next time.Allow moving photoconductor flow sensor 9 in the test process anything but, otherwise test result is with inaccurate.
Claims (2)
1, system controlled by computer water meter calibration device, this device includes computing machine and management software, printer, microcomputer control cabinet, water pipe is connected stabilivolt, calibration operation platform, measuring device, the calibrating transport platform is with the signal input microcomputer control cabinet of being examined and determine, it is characterized in that connecting water pipe (4) at calibration operation platform (19), water pipe connects solenoid valve (3), meter-clamping apparatus (11), tested table (8), standard scale (7), is provided with photocurrent quantity sensor (9) on tested table and standard scale; Water inlet pumps into calibration operation platform (19) from pipe inlet has at least the tested table (8) of an arrangement to be connected, the water inlet direction of every tested table link to each other meter-clamping apparatus (11) and solenoid valve (3), the stage casing of the feed water flow warp standard scale (7) that links to each other; Water pipe (4) is connected with flow control valve (6), proving flowmeter (5), solenoid valve (3) respectively; Connect work measuring instrument (2) at the latter end water pipe of feed water flow warp, work measuring instrument is provided with different capacity, is connected with photoelectric liquid level sensor (1) in a side of work measuring instrument, is connected with bottom valve (10), connection drainage pipeline under the bottom valve in its bottom.
2, system controlled by computer water meter calibration device according to claim 1, it is characterized in that the photoelectric liquid level sensor signal (13) that the measured signal of photocurrent quantity sensor (9), photoelectric liquid level sensor (1) record, pressure switch signal (12), the solenoid control signal (14) that solenoid valve (3) records, connection inputs to signal transfer management controller (15), by signal transfer management controller (15) measured signal is connected input computing machine and management software (17) and printer (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114413 CN2767974Y (en) | 2004-12-17 | 2004-12-17 | Microcomputer controlled water meter calibrating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114413 CN2767974Y (en) | 2004-12-17 | 2004-12-17 | Microcomputer controlled water meter calibrating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2767974Y true CN2767974Y (en) | 2006-03-29 |
Family
ID=36681840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114413 Expired - Lifetime CN2767974Y (en) | 2004-12-17 | 2004-12-17 | Microcomputer controlled water meter calibrating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2767974Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128665A (en) * | 2011-01-29 | 2011-07-20 | 中国计量学院 | Device for detecting accuracy of mechanical water meter |
| CN102494744A (en) * | 2011-12-27 | 2012-06-13 | 重庆市智能水表有限责任公司 | Large-flow automatic detection device and detection method for water meters |
| CN102494743A (en) * | 2011-12-27 | 2012-06-13 | 重庆市智能水表有限责任公司 | Small-flow automatic detection device and detection method for water meters |
| CN102506964A (en) * | 2011-10-26 | 2012-06-20 | 中国计量学院 | Liquid reservoir automatic calibration device and calibration method |
| CN111060342A (en) * | 2019-12-30 | 2020-04-24 | 3M材料技术（广州）有限公司 | System and method for calibrating a functional module of a water treatment device |
-
2004
- 2004-12-17 CN CN 200420114413 patent/CN2767974Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128665A (en) * | 2011-01-29 | 2011-07-20 | 中国计量学院 | Device for detecting accuracy of mechanical water meter |
| CN102128665B (en) * | 2011-01-29 | 2012-08-22 | 中国计量学院 | Device for detecting accuracy of mechanical water meter |
| CN102506964A (en) * | 2011-10-26 | 2012-06-20 | 中国计量学院 | Liquid reservoir automatic calibration device and calibration method |
| CN102506964B (en) * | 2011-10-26 | 2013-07-17 | 中国计量学院 | Liquid reservoir automatic calibration device and calibration method |
| CN102494744A (en) * | 2011-12-27 | 2012-06-13 | 重庆市智能水表有限责任公司 | Large-flow automatic detection device and detection method for water meters |
| CN102494743A (en) * | 2011-12-27 | 2012-06-13 | 重庆市智能水表有限责任公司 | Small-flow automatic detection device and detection method for water meters |
| CN111060342A (en) * | 2019-12-30 | 2020-04-24 | 3M材料技术（广州）有限公司 | System and method for calibrating a functional module of a water treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO MINGTAI TRAFFIC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: ZHANG ZUMING Effective date: 20140326 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140326 Address after: Ningbo Zhenhai District 315202 South Road camel in Zhejiang province Ningbo City No. 1292 Patentee after: Ningbo Mingtai Traffic Equipment Co., Ltd Address before: 315202 Zhenhai south, West first road, Zhenhai, Zhejiang, Ningbo, Ningbo Zhenhai complete equipment factory Patentee before: Zhang Zuming |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141217 Granted publication date: 20060329 |