CN1546955A - Digital drib flow water meter detecting device and method - Google Patents
Digital drib flow water meter detecting device and method Download PDFInfo
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- CN1546955A CN1546955A CNA2003101169004A CN200310116900A CN1546955A CN 1546955 A CN1546955 A CN 1546955A CN A2003101169004 A CNA2003101169004 A CN A2003101169004A CN 200310116900 A CN200310116900 A CN 200310116900A CN 1546955 A CN1546955 A CN 1546955A
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Abstract
The invention discloses a kind of digital drop flow water meter measuring device and the method. The character lies in: the inlet sets electromagnetic total valve or manual total valve in series, water pressure piston cylinder, measured meters, a hollow fixing bracket, the outlet is connected to a three-way tube and connects with three branches. The first branch: connects the large flow electromagnetism valve or manual valve, large capacity sensor, large capacity electromagnetic valve or manual valve in series, the second branch: connects the meddle capacity electromagnetic valve or manual valve, the middle capacity sensor, flow adjusting valve, control manual valve in series. The third branch: connects the small capacity flow electromagnetic valve or manual valve, the small capacity sensor, double pulse electromagnetic valve, drop flow integrating device, flow adjusting valve or control manual valve in series. The signal is transmitted to the counting computer CPU and screen. The invention is simple; it can realize the automation and digitalization of test.
Description
The present invention relates to flow water meter detection technique field, mainly propose a kind of digital drop flow water meter pick-up unit and detection method.
At present the water meter pick-up unit that uses is the water of water meter of flowing through, and flows to compare in the volumetric standard to record, and the shortcoming of this kind method is to account for that to hold area big, equipment one-time investment height, and the test duration, long being difficult to realized detecting automatically.For solving above-mentioned drawback, the invention provides a kind of digital (manual or automatic) drop flow water meter pick-up unit and detection method.
The present invention adopts following scheme for achieving the above object.
A kind of digital drop flow water meter pick-up unit is by dipulse electromagnetism main valve (or manually cutting down door) hollow hydraulic piston cylinder, tested water meter, hollow hold-down support, three-way pipe, the big flow dipulse of first branch road solenoid valve (or manually-operated gate), big flow flow sensor, big flow Electromagnetic Flow variable valve (or hand valve).Flow dipulse solenoid valve (or manually-operated gate) in second branch road, middle flow flow sensor, middle flow control Electromagnetic Flow variable valve (or manually-operated gate).The 3rd branch road low discharge dipulse solenoid valve (or manually-operated gate), dipulse solenoid valve.Drop flow integrator, low discharge Electromagnetic Flow variable valve (or hand valve), tested watermeter flowing rate counting probe, crystal oscillator clock chip, computer master chip CPU and digital display screen, start-stop K switch
1, observe the instantaneous delivery K switch
2, set flow 1-3 way switch K
3, K
4, K
5, clear 0 K switch
6And printer is formed, be it is characterized in that: import is connected water inlet pipe with dipulse electromagnetism main valve (or manually-operated gate), and import is connected water delivering orifice with hollow hydraulic piston cylinder with pipe.Its hollow hydraulic piston cylinder, outlet clamp with the import of hollow hold-down support with junction block with tested water meter import and are connected.It is three branch roads with moisture that the outlet of its hollow hold-down support connects three-way pipe, first branch road connect big flow dipulse solenoid valve (or manually-operated gate), big flow flow sensor, big flow Electromagnetic Flow variable valve (or manually-operated gate), and outlet water flows into water tank.Flow dipulse solenoid valve (or manually-operated gate), middle flow flow sensor, middle flow dipulse solenoid valve (or manually-operated gate) in the series connection of second branch road, outlet water flows into water tank.The 3rd branch road series connection low discharge dipulse solenoid valve, dipulse solenoid valve drop flow integrator, low discharge solenoid valve, outlet water flows into water tank.
The coil of each dipulse solenoid valve is powered by power supply, meets computer master chip CPU, and by each dipulse electromagnetic valve switch of time programmed control, computer master chip cpu i/f is connected with each electromagnetic valve coil with lead.
Tested watermeter flowing rate metering probe is to be made by tongue tube or Hall element receiver.When detecting examination, the attached magnetic-electric signal flow generator correct position that is positioned on the mounted representative flow of tested water meter quantity is connected with computer master chip cpu i/f with lead.
The adjusting of the big flow dipulse of first branch road Electromagnetic Flow variable valve is by the flow ÷ time programming of computer master chip CPU according to the big flow sensor flow path of first branch road, and the by-pass valve control open amount comes the size of Control Flow.The artificial setting pressed K
3Button is adjusted and locking.Its control signal is connected with big flow dipulse solenoid valve regulating winding with power lead one end, and the other end is connected with computer master chip cpu i/f.The big flow sensor of first branch road it be according to flow be in proportion send electric signal what, an end of signal wire connects the pulsed signal device of big flow sensor, the other end connects computer master chip cpu i/f.When first branch road was opened work, second branch road, the 3rd branch road were closed automatically by setting.
Flow dipulse solenoid valve flow regulation and Control work program and first branch road are also together in second branch road.Electromagnetic Flow variable valve coil is connected with power supply and with another interface of computer master chip CPU with lead, manually adjusts and when locking flow, presses K
4Button.Flow sensor also is by proving flowmeter in second branch road, and the signal that it sends flow is connected with another interface of computer master chip CPU with lead.Other first branch road and the 3rd branch road quit work when second branch road is worked.The 3rd branch road low discharge dipulse Electromagnetic Flow variable valve, its Control work program and first branch road are also same, and the solenoid valve coil is connected with power supply and with another interface of computer master chip CPU with lead.Press K when artificial adjustment and locking flow
5Button.
The 3rd branch point drip amount integrator, it is made up of dipulse solenoid valve and integration container, its solenoid valve energising adhesive valve opening, the outage relief valve is closed.Described integration container is by its upper surface sealing of tubular piston cylinder and establishes a spiracle that its circle center, upper surface and piston cylinder lower surface correct position are respectively put the device of being made by dry-reed or Hall element of pulsed signal up and down.Install down " protruding " shape piston that slidably also seals in the described piston bore, put pressure spring between its piston and piston cylinder upper surface, pulsed signal device correct position is up and down aimed in tip circle center and lower surface on the piston, adorns upper and lower signal generator respectively.
Described drop flow integrator is at unified pipe water dress dipulse solenoid valve.Drip amount integrator is decorateeed in outlet, and its outlet is connected with dipulse low discharge dipulse Electromagnetic Flow variable valve (or manually-operated gate).Described drop flow integrator upper surface pulsed signal device cuts out the sucking coil power supply for cutting out solenoid valve by signal receiver.Its lower end pulsed signal device is an opens solenoid valve, connects the sucking coil power supply by signal receiver, is connected with another interface of computer master chip CPU and its value is counted computer master chip CPU with lead.Principle of work is: when " protruding " piston stops the piston cylinder lower end, lower end pulsed signal device promptly sends instruction to computer master chip CPU, indication is powered to the solenoid valve sucking coil, it is open-minded that coil adhesive solenoid valve is opened the water route, water flows into solenoid valve rear end water channel, because outlet valve is in the drop state, a large amount of current are not gone out, so promote to move on " protruding " piston, upper end pulsed signal device received signal is sent instruction to computer master chip CPU when being pushed into the top, the outage of indication solenoid valve sucking coil, end in the closed electromagnetic valve water route.Form volume at this moment in " protruding " shape piston lower surface and the piston bore, its water promotes piston and moves down under the effect of upward pressure spring, flow out from the outlet valve drop.Intact when current, when piston moved down into desired location, lower end pulsed signal device received signal made solenoid valve logical from new unlatching current, promoted to move on the piston ... ...The product of the number of times of the metering computer that goes round and begins again like this action and the piston bore internal volume of setting promptly records the water yield quantity of flow path and shows on display screen.
Computer master chip CPU is by mains-supplied, and each signal of described collection is imported from interface, after computing, gives each solenoid valve by setting program execution from interface again.Digital display screen and K
1-K
6Button is installed in the surperficial correct position of computer casing, is connected with the CPU master chip with lead.Described master chip CPU is installed on the interior printed wiring board of computer casing and is mounted on computer casing sidewall correct position with each external tapping respectively with lead.Printer is connected with computer master chip CPU by interface with lead.
When the digital drop flow of the present invention water meter pick-up unit detects water meter by manual detection with detect two kinds of methods automatically:
1. manual detection method: be placed between hollow hydraulic piston cylinder and the hollow hold-down support tested water meter is coaxial, open hollow hydraulic piston cylinder water inlet control valve, make it the live piston rod of cylinder of hollow hydraulic pressure and advance to the right and clamp tested water meter.Open the first branch road high flow manual valve again, Push switch K after opening total manually-operated gate successively
1Computer master chip CPU and digital display screen are started working.After making it pipeline current emptying certain hour, hand is pressed the instantaneous delivery K switch
2Adjust the big flow control hand valve observation of first branch road simultaneously and set flow, close the first branch road high flow manual valve and Push switch K
6It is clear 0 to make it numeral, and the tested water meter indicating value of manual record is opened the high flow manual valve again, current flow through tested water meter and big flow sensor, after flow is flowed through in accordance with regulations, close the high flow manual valve, writing down more tested water meter indicating value and digital display screen displayed value, to reach standard error promptly qualified.Can adjust the adjusting mechanism that tested water meter is set if exceed standard, repeat above-mentioned check again and press digital display screen K6 clear 0 to closing the flow manually-operated gate after qualified.
The detection of flow in second branch road:
Open the flow manually-operated gate regulate repeatedly in flow manual adjustment valve digital display screen instantaneous delivery button, press K
2, make it to close middle flow hand valve after flow reaches the setting flow, press digital display screen K
6Clear 0.Making numeral is the tested meter reading of 0 record, flow manual control valve in opening again.Current flow through tested water meter and middle flow sensor, flow manually-operated gate in closing after amount is flowed through in accordance with regulations, write down more tested water meter indicating value and digital display screen indicating value reach be in the standard error scope qualified.Can adjust the adjusting mechanism that tested water meter is set if exceed standard, repeat above-mentioned check again.To after qualified, closing middle flow manually-operated gate, press digital display screen K
6Clear 0.
The detection of the 3rd branch point drip amount:
Open the low discharge hand valve, press K
2The instantaneous delivery button, flow control manual adjustment valve in regulating repeatedly, observation digital display screen indicating value is closed the low discharge manually-operated gate after reaching and setting flow value, presses digital display screen K
6Clear 0.Write down tested meter reading, open the artificial valve of low discharge, current flow through tested water meter and drop flow integrator again.Write down more tested water meter and digital display screen numeral and reach and be qualified in the standard error scope,, repeat above-mentioned check again to after qualified, closing the low discharge manually-operated gate if exceed standard and to adjust tested water meter adjusting mechanism.
2. automatic testing method: between the coaxial placement hollow of tested water meter hydraulic piston cylinder and hollow hold-down support, open hollow hydraulic piston cylinder water inlet control valve and the bar alive of hollow hydraulic piston cylinder is advanced to the right clamp tested water meter.With the attached correct position that is positioned on the corresponding count signal generator in water meter surface of tested watermeter flowing rate metering probe, press K
1Computer switch is below worked and is carried out work by computer master chip CPU setting program, presses the first branch switch K
3Automatically open the big flow dipulse solenoid valve → big flow Electromagnetic Flow of unlatchings variable valve (flow is automatic adjusting) current emptying reach setting-up time after → computer master chip CPU begins counting, dipulse solenoid valve display screen show synchronously tested watermeter flowing rate metering probe received signal flow to computer master chip CPU counting flow to the regulation flow after → big flow dipulse closed electromagnetic valve → printer that starts working prints the variable of tested water meter quantity and big flow sensor detection.During flow, press flow switch K in the 2nd branch road in the test
4After flow dipulse solenoid valve (flow is automatic adjusting) current are vented to setting-up time in flow Electromagnetic Flow variable valve → unlatching in the unlatching → computer master chip CPU begin numeration → display screen demonstration → synchronous tested watermeter flowing rate metering probe received signal flow to computer master chip CPU numeration flow through set flow after → middle flow dipulse closed electromagnetic valve → printer starts working, and prints the quantity that tested water meter numerical value and middle flow sensor detect.During test point drip amount: press the low discharge K switch
5Open low discharge dipulse solenoid valve → unlatchings low discharge Electromagnetic Flow variable valve (flow is automatic adjusting) current be vented to behind the setting-up time by computer master chip CPU opening entry display screen demonstrations → synchronous tested watermeter flowing rate metering probe received signal flow to computer count → flow to behind the setting flow → low discharge dipulse closed electromagnetic valve → printer that starts working prints the variable of tested water meter quantity and integrator detection.
All K is pressed in the qualified back of flow rate test
1Close dipulse electromagnetism main valve and hollow hydraulic piston cylinder, under the tested water meter behind the test board, again by adorning tested water meter.This experiment table main line some tested water meters of can connecting experimentize simultaneously.
Embodiments of the present invention are described below with reference to accompanying drawings
Fig. 1 is the digital drop flow of a present invention water meter pick-up unit manual detection device scheme of installation.
Fig. 2 is the digital drop flow of a present invention water meter pick-up unit automatic detection device scheme of installation.
Fig. 3 is the digital drop flow of a present invention water meter pick-up unit drop integrating meter measuring device structural representation.
Among the figure: 1, dipulse electromagnetism main valve (or manually-operated gate) 2, hollow hydraulic piston cylinder 3, hollow tube joint 4, tested water meter 4-10 (10 the tested water meters of can connecting) 5, flow control manually-operated gate 3-1 low discharge manually-operated gate 3-2 Small Flow Control manually-operated gate 6 among the flow manually-operated gate 2-2 among the big flow control manually-operated gate of the hollow hold-down support 1-1 high flow manual valve 1-2 2-1, big flow sensor 7, middle flow sensor 8, dipulse solenoid valve 9, drop flow integrator 10, counter computer cpu CPU and display screen 11, crystal oscillator time chip 12, switching motherboard k1, k2, k3, k4, k5, k6 13, support 14, dipulse electromagnetism main valve 14-1, big flow dipulse solenoid valve 14-2, big flow Electromagnetic Flow variable valve 15-1, middle flow dipulse solenoid valve 15-2, middle flow Electromagnetic Flow variable valve 16-1, low discharge dipulse solenoid valve 16-2, low discharge Electromagnetic Flow variable valve 17, flow metering probe 18, solenoid valve 19, hydraulic pressure pressure device 20, integrator cylinder body 21, integrator piston 22a, last signal generator 22b, following signal generator 23a, last signal receiver 23b, following signal receiver 24, sealing ring 25, spring 26, spiracle, 2a piston cylinder operation valve 27, printer.
Described Fig. 1: digital drop flow water meter pick-up unit (manually pick-up unit): total manually-operated gate 1 left side is water inlet, water outlet is to connect hollow hydraulic piston cylinder 2 with indentical tube, its 2 piston cylinder left end suit hollow tube joint 3, tested water meter 4 imports of its 3 outlet suit, it 4 exports suit hollow tube joint 3 again, it 3 exports tested water meter 4-10 one word of suit again and can connect some, last tested water meter outlet and 5 butt joints of hollow hold-down support, when need hold out against experiment, can open 2a piston cylinder operation valve, hollow hydraulic piston cylinder promotion piston is walked to the right and is promptly clamped tested water meter 4 and 4-10.Hold-down support 5 outlet tee pipe coupling parallel connections, first, second and third branch road.It exports word string the United Nations General Assembly flow sensor 6 described first branch road catcher movable valve 1-1, and big its valve export of flow control manually-operated gate 1-2 flows into return flume.The described second branch road water inlet meets middle flow manually-operated gate 2-1, and it exports flow sensor 7, middle flow control manually-operated gate 2-2 in the word string connection, and its valve export flows into return flume.Described the 3rd branch road import meets low discharge manually-operated gate 3-1, and it exports word string connection dipulse solenoid valve 8, drop flow integrator 9.Small Flow Control manually-operated gate 3-2, its outlet flows into return flume.Described counter computer cpu CPU and display screen 10, crystal oscillator chip 11, switching motherboard k
1, k
2, k
3, k
4, k
5, k
6Be installed on the same meter case, signal wire inserts on the printed circuit board of counter computer cpu CPU and display screen 10 successively.
Described Fig. 2: digital drop flow water meter pick-up unit (automatic detection device), dipulse electromagnetism main valve 14 left sides are water inlet, water outlet is that indentical tube connects hollow hydraulic piston cylinder 2, its 2 piston right-hand member suit hollow tube joint 3, tested water meter 4 imports of its 3 outlet suit, it 4 exports suit hollow joint 3 again, and it 3 exports tested water meter 4-10 one word of suit again and can connect some, and last tested water meter outlet is with three-way pipe first, second, third branch road in parallel.Described first branch road, one word string meets big flow dipulse solenoid valve 14-1, big flow sensor 6, big flow Electromagnetic Flow variable valve 14-2, and its 14-2 goes out saliva, flows into return flume.Described second branch road, one word string meets middle flow dipulse solenoid valve 15-1, middle flow sensor 7, middle flow Electromagnetic Flow variable valve 15-2, and its 15-2 water delivering orifice flows into return flume.Described the 3rd branch road one word string meets low discharge dipulse solenoid valve 16-1, dipulse solenoid valve 8, drop flow integrator 9, low discharge Electromagnetic Flow variable valve 16-2, and its 16-2 water delivering orifice flows into return flume.Described counter central processor CPU and display screen 10, crystal oscillator time chip 11, switching motherboard 12, k
2, k
3, k
4, k
5, k
6Unified being installed on the meter case.Described dipulse solenoid valve 14,14-1,14-2,15-1,15-2,16-1,16-2 and 9, used control signal wire k
01, k
01.1, k
01.2, k
02.1, k
02.2, k
03.1, k
03.2Insert successively on the printed circuit board of counter computer cpu CPU and display screen 10.Described big flow sensor 6, middle flow sensor 7, drop flow integrator 9 signal wires insert on the printed circuit board of counter central processor CPU and display 10 successively, and described flow metering probe 17 is attached when measuring water meter to be positioned on the correct position place that water meter counter can receive the water meter tach signal.It connects signal wire X
01, X
2-10Insert successively on the printed circuit board of counter computer cpu CPU and display screen 10.
Described each accessory technology is just invention to some extent on utilization structure and detection method of ordinary skill, so each accessory technology is not being given unnecessary details.
Described Fig. 3: drop flow integrating gear is made up of dipulse solenoid valve 8 and drop flow integrator 9, outlet is connected with dipulse solenoid valve 16-1 in its dipulse solenoid valve 9 imports, it exports the piston cylinder 20 that seal pipe shape upper surface that same housing effluent pipe mouth upper end deposits the end water inlet, the piston 21 of dress overcoat sealing ring 24 is put spring 25 in its cylinder between piston 21 upper surfaces and 20 interior upper surfaces of piston cylinder.Described piston 21 upper surfaces are packed with signal generator 22a, signal generator 22b under the correct position embedding of lower surface, and the corresponding upper surface of signal generator 22a, 22b piston cylinder up and down is packed with signal receiver 23a, signal receiver 23b under the embedding of lower surface.
Claims (6)
1, a kind of digital drop flow water meter pick-up unit and detection method: it is characterized in that: with pipeline one word series connection dipulse electromagnetism main valve 14 or manually-operated gate 1, hollow hydraulic piston cylinder 2, hollow tube joint 3 are installed by water inlet, tested water meter 4,4-10, hollow hold-down support 5: be divided into three branch roads arranged side by side by three-way pipe.Wherein, The big flow dipulse of first branch road solenoid valve 14-1 or high flow manual valve 1-1, big flow sensor 6, big flow Electromagnetic Flow variable valve 14-2 or high flow manual valve 1-2, flow dipulse solenoid valve 15-1 or middle flow manually-operated gate 2-1 in second branch road, middle flow sensor 7, middle flow Electromagnetic Flow variable valve 15-2 or middle flow control manually-operated gate 2-2, the 3rd branch road low discharge dipulse solenoid valve 16-1 or low discharge manually-operated gate 3-1, dipulse solenoid valve 8, drop flow integrator 9, low discharge Electromagnetic Flow variable valve 16-2 or Small Flow Control manually-operated gate 3-2; Three branch road water delivering orifices flow into respectively in the effluent trough, form main water route measuring system; Its input and computer display system are by tested water meter counting meter probe 17, crystal oscillator clock chip 11, counter computer cpu CPU and display screen 10, start-stop switch 12, K
1, observe the instantaneous delivery K switch
2, set 1-3 road flow switch K
3, K
4, K
5, clear 0 K switch
6Be installed on the same meter case, printer 27 connects with lead and computer cpu CPU10, lays in place.
2, digital drop flow water meter pick-up unit according to claim 1 and detection method: it is characterized in that: water inlet is installed manually-operated gate 1 with pipeline one word string connection, hollow hydraulic pressure clamping piston cylinder 2, hollow tube joint 3, tested water meter 4 and 4-10, hollow hold-down support 5; Be divided into three branch roads in parallel by three-way pipe, its first branch road one flow manually-operated gate 1-1 of word string the United Nations General Assembly, big flow sensor 6, big flow control manually-operated gate 1-2, flow manually-operated gate 2-1, middle flow sensor 7, middle flow control manually-operated gate 2-2 in second branch road, the one word string connection; The 3rd branch road one word string meets low discharge manually-operated gate 3-1, dipulse solenoid valve 8, drop flow integrator 9, Small Flow Control manually-operated gate 3-2; The main water route manual detection system that its three branch roads rising pipe takes back respectively that tank forms; Its big flow sensor 6 metering signal lines, middle flow sensor 7 metering signal lines, the 23a of signal receiver up and down of drop flow integrator 9,23b metering signal line, sum counter computer cpu CPU10 connects respectively; Described computer cpu CPU10, time chip 11, switching motherboard 12, K
1, K
2, K
3, K
4, K
5, K
6Be installed in the manual detection device in the same meter case.
3, digital drop flow water meter pick-up unit according to claim 1 and detection method: it is characterized in that: water inlet is installed dipulse electromagnetism main valve 14, hollow hydraulic piston cylinder 2, hollow tube joint 3, tested water meter 4 and 4-10 with pipeline one word string connection, hollow hold-down support 5, be divided into three branch roads in parallel by three-way pipe, its first branch road one flow dipulse solenoid valve 14-1 of word string the United Nations General Assembly, big flow sensor 6, big flow Electromagnetic Flow variable valve 14-2; Flow dipulse solenoid valve 15-1, middle flow sensor 7, middle flow Electromagnetic Flow variable valve 15-2 in second branch road, the one word string connection, the 3rd branch road one word string connection low discharge dipulse solenoid valve 16-1, dipulse solenoid valve 8, drop flow integrator 9, low discharge Electromagnetic Flow variable valve 16-2; Its three branch roads rising pipe takes back tank, the major loop automatic checkout system of composition; Its big flow sensor 6 metering signal lines, middle flow sensor 7 metering signal lines, the 23a of signal receiver up and down of drop flow integrator 9, the metering signal line of 23b, sum counter computer cpu CPU and display screen 10 connect respectively; Described flow metering probe 17 attached respectively tested water meter 4 and the suitable positions that can receive the water meter tach signal of 4-10 of being positioned on, the other end connects with lead difference sum counter computer cpu CPU and display screen 10: described counter computer cpu CPU and display screen 10, time chip 11, switching motherboard 12, K
1, K
2, K
3, K
4, K
5, K
6Be installed in the same meter case: printer 27 usefulness lead sum counter computer cpu CPU10 connect, and are placed in the automatic detection device of the correct position of meter case side.
4, digital drop flow water meter pick-up unit according to claim 1 and detection method: it is characterized in that: drop flow integrator 9 is by the pipe shape integrator cylinder body 20 of lower end water inlet upper end closed, built-in integrator piston 21, its piston 21 upper and lower sides are loaded onto signal generator 22a down at correct position, 22b, corresponding signal generator 22a up and down, on the 22b integrator cylinder body, the bottom is at correct position dress signal receiver 23a, 23b, its 23a, the integration container measurement structure that signal receiver connects with signal wire difference sum counter computer cpu CPU and display screen 10 about the 23b.
5, digital drop flow water meter pick-up unit according to claim 1 and detection method: it is characterized in that: manual detection method: between tested water meter 4 and the coaxial placement hollow of 4-10 hydraulic piston cylinder 2 and hollow hold-down support 5, open hollow hydraulic piston cylinder 2 water inlet control valve 2a, the piston rod that makes it the hollow hydraulic cylinder advances tested water meter 4 of folder and 4-10 to the right, after opening manually-operated gate 1 successively, open the first branch road high flow manual valve 1-1 again, Push switch K
1, computer master chip CPU and display screen 10 are started working, make it pipeline current emptying certain hour after, hand is pressed the instantaneous delivery K switch
2Adjust the big flow control hand valve of first branch road 1-2 observation simultaneously and set flow; Then close first branch road high flow manual valve 1-1 and the pressing K switch
6Make it numeral clear 0; Open high flow manual valve 1-1 again, current flow through tested water meter 4 and 4-10 and big flow sensor 6 after flow is flowed through in accordance with regulations, are closed high flow manual valve 1-1, write down more tested water meter indicating value; The detection of flow in second branch road: flow control manually-operated gate 2-2 during flow manually-operated gate 2-1 regulates repeatedly in opening, press instantaneous delivery button K
2, make it to close middle flow manually-operated gate 2-1 after flow reaches the setting flow, press K
6Clear 0 button numbers is 0, write down tested meter reading, flow through tested water meter and middle flow sensor 7 of flow manually-operated gate 2-1 current in opening again, flow hand valve 2-1 during amount is closed after flowing through in accordance with regulations, write down more tested water meter indicating value and digital display screen indicating value reach be in the standard error scope qualified.If exceed standard, can adjust the adjusting mechanism that tested water meter is set, repeat above-mentioned check again.To after qualified, closing middle flow manually-operated gate 2-1, pressing digital display screen K
6Clear 0; The detection of the 3rd branch point drip amount: open low discharge manually-operated gate 3-1, press K
2The instantaneous delivery button is regulated Small Flow Control manually-operated gate 3-2 repeatedly, and observation digital display screen indicating value is closed low discharge manually-operated gate 3-1 after reaching and setting flow, presses digital display screen K
6Clear 0.Write down tested meter reading, open the manual valve 3-1 of low discharge, current flow through tested water meter 4 and 4-10 and drop flow integrator 9 again.Write down more tested water meter and digital display screen numeral and reach and be qualified in the standard error scope,, repeat above-mentioned check again to after qualified, closing low discharge manually-operated gate 3-1 if exceed standard and to adjust tested water meter adjusting mechanism.
6, digital drop flow water meter pick-up unit according to claim 1 and detection method: it is characterized in that: automatic testing method: with tested water meter 4 with 4-10 is coaxial is placed between hollow hydraulic piston cylinder 2 and the hollow hold-down support 5, opening piston rod that hollow hydraulic piston cylinder 2 water inlet control valve 2a make it the hollow hydraulic cylinder advances to the right and clamps tested water meter 4 and 4-10, with the tested watermeter flowing rate metering probe 17 attached corresponding count signal generator correct positions in water meter surface that are positioned on, press K
1It is total 14 that computer switch is opened the dipulse solenoid valve automatically, below carries out work by computer master chip CPU10 setting program: its program is for pressing the 1st branch switch K
3Automatically open big flow dipulse solenoid valve 14-1 → open automatically big flow control valve 14-2 (flow automatic adjusting) current emptying reach setting-up time after → computer master chip CPU10 begin to count automatically the synchronous tested watermeter flowing rate metering probe 17 received signal of computing (display screen demonstrations) flow to computer master chip CPU10 counting show flow to set flow after → greatly flow dipulse solenoid valve 14-1 close → printer 27 starts working, Automatic Program is printed the variable that tested water meter 4 and 4-10 variable and big flow sensor detect: during flow, press flow switch K in the 2nd branch road in the test
4After flow dipulse variable valve 15-2 (flow automatic adjusting) current of flow dipulse solenoid valve 15-1 in the unlatching → in automatically opening are vented to setting-up time → computer master chip CPU10 begin to count computing → display screen demonstrations → synchronous tested watermeter flowing rate metering probe 17 received signals flow to computer master chip CPU10 numeration current flow out back → middle flow dipulse solenoid valve 15-1 and close by setting flow → printer 27 starts working, and prints the variable Automatic Program clear 0 of tested water meter 4 and 4-10 variable and 7 detections of middle flow sensor; During test point drip amount, press the 3rd branch road low discharge K switch 5, automatically after opening low discharge dipulse solenoid valve 16-1 → open automatically low discharge dipulse variable valve 16-2 (flow automatic adjusting) current and being vented to setting-up time → synchronous tested watermeter flowing rate metering probe 17 received signals, flows to CPU10 counting → computer master chip CPU10 and begins the demonstration of numeration → display screen, current flow out back → low discharge dipulse solenoid valve 16-2 and close by setting flow → and printer starts working, and prints the variable of tested water meter measurement value and integrator detection.Automatic Program clear 0; K touches the button after whole flow rate tests are qualified
1Automatically close the tight piston cylinder 2 of dipulse electromagnetism main valve and hollow hydraulic pressure, test board is reinstalled tested water meter under tested water meter 4 and the 4-10; This experiment table main line some tested water meters of can connecting detect simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101169004A CN1546955A (en) | 2003-12-03 | 2003-12-03 | Digital drib flow water meter detecting device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101169004A CN1546955A (en) | 2003-12-03 | 2003-12-03 | Digital drib flow water meter detecting device and method |
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| CN110823325A (en) * | 2019-11-28 | 2020-02-21 | 徐州润物科技发展有限公司 | Leak-proof water meter calibrating installation |
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- 2003-12-03 CN CNA2003101169004A patent/CN1546955A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990951A (en) * | 2017-12-23 | 2018-05-04 | 天津农学院 | A kind of flowmeter measuring tank of portable micro gas |
| CN109682433A (en) * | 2019-01-03 | 2019-04-26 | 山东威高集团医用高分子制品股份有限公司 | A kind of oxygen flow monitoring device |
| CN110823325A (en) * | 2019-11-28 | 2020-02-21 | 徐州润物科技发展有限公司 | Leak-proof water meter calibrating installation |
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