CN206161119U - Full -automatic series connection water gauge check -up calibrating installation - Google Patents
Full -automatic series connection water gauge check -up calibrating installation Download PDFInfo
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- CN206161119U CN206161119U CN201621185338.XU CN201621185338U CN206161119U CN 206161119 U CN206161119 U CN 206161119U CN 201621185338 U CN201621185338 U CN 201621185338U CN 206161119 U CN206161119 U CN 206161119U
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Abstract
The utility model relates to a water gauge is tested and is examined the device, specifically is a full -automatic series connection water gauge check -up calibrating installation, including device body, PLC controller, tong -test ammeter mechanism, constant voltage mechanism, constant temperature machine constructs, flow control valve, water tank, image acquisition device and water pipe, tong -test ammeter mechanism includes that water gauge frame, water gauge anchor clamps and telescopic cylinder are a plurality of, constant voltage mechanism includes water pump, converter, surge tank and pressure sensor, water pump, surge tank and pressure sensor concatenate on the water pipe, pressure sensor still is connected with PLC controller electricity, the PLC controller still is connected with converter and water pump electricity in proper order, constant temperature machine constructs including water cooler, immersible pump and temperature sensor, the immersible pump is established in the water tank and is communicate with the water cooler, temperature sensor establishes in the water tank, water cooler, immersible pump and temperature sensor all are connected with PLC controller electricity, flow control valve concatenates on the water pipe and is connected with the PLC controller.
Description
Technical field
This utility model is related to a kind of water meter and tests checking device, and specially a kind of fully-automatic series water meter verifies assay device.
Background technology
Water meter is widely used in the industries such as tap water, heating power, chemical industry, produces the enterprise or metrological service of water meter and needs to these
The error of indication of water meter carries out performance detecting according to the code that relevant departments formulate.National metrological verification regulations specify, to water meter
Three flow point tolerance calibratings such as nominal flow rate, boundary flow, minimum discharge must be carried out.Opened using manual static mostly at present
Stop volume relative method, testing person needs manual three switchings discharge, four readings to enter rower by water gauge registration and three times
Quasi- measuring device liquidometer water level reads, and these data of manual record simultaneously calculate various errors, then manual calibrating data inputting meter
Calculation machine is easy to achieve, inquire about and print.Testing person needs the operation of real-time control assay device in whole verification process, with
20mm bore water meter new standard calibrations, a car water meter (7 water meters) calibrating need to take 45 minutes, manually when various registrations are read
Need to close liquid level stabilizing in valve wait standard capacity measure, the stability in these start and stop stages, the interpretation of level readings are missed
Differ from, calibration precision will all be affected by water gauge indicating graduation resolution and artificial origin.The work that this calibrating mode is present
Measure numerous defects such as big, efficiency is low, precision is low, personal error is big, verification result is not objective apparent.
The pressure water meter verification assay device of fully-automatic series band for commonly using has three kinds:1st, artificial operating series band is pressure
Apparatus for calibrating water meter:This kind of device is more original static start-stop volume subtraction unit, is manually operated using the judgement of human eye,
The numeral of red pointer is read, flow point is adjusted and examines and determine the start-stop of water consumption, there is very big personal error.Calibration efficiency is low,
Error is big, and librarian use is more.2nd, infrared controlled standard is connected with pressure apparatus for calibrating water meter (static start-stop volume subtraction unit):This
It is on the basis of manually-operated, to have installed infrared limit switch and electromagnetic valve, phase additional on standard capacity measure device to plant device
The error produced during to reducing and manually close down water.The spacing error of infrared limit switch and still continue to use artificial copy reading calibrating and represent
Several modes, determines that the error of the device is still very big.
Camera head type is connected with pressure apparatus for calibrating water meter (static start-stop quality subtraction unit):This kind of device is manually to grasp
Larger change has been carried out on the device of work, semi-automation has been realized.Install photographic head additional, replace artificial copy reading number；Electronic scale
Standard measuring device is instead of, calibration precision increases.Easily be subject to when but photographic head captures image extraneous light source interference and
The bubble interference of gauge outfit, easily produces captured image None- identified and identification mistake and causes reading entanglement or cannot reading
Phenomenon, needs operator to be modified on software in time, personnel's computation is required higher.The device is not thoroughly solved
New operating process and operation difficulty certainly can be also brought while problem.
At present Chinese patent CN103175588A also discloses that a kind of pressure water meter of fully-automatic series band verifies assay device,
Including water meter calibration fundamental mechanism, flow counting mechanism, metrological service, pipeline and control system；The water meter calibration foundation machine
Structure includes water source device, the test pipeline section that water gauge spaced series are constituted, test pipeline section is treated by more piece test straight length and polylith
It is arranged on correction platform position；It is described that water gauge one flow counting mechanism of correspondence is treated per block；The metrological service include effusion meter,
Work container and electronic weighing appliance, the electronic weighing appliance is arranged on the bottom of Work container；The tail of the test pipeline section
Water is introduced successively effusion meter and Work container by pipeline for end；The control system combines scene using computer long-distance control
The industrial automation mechanism or the Single-chip Controlling mechanism based on embedded system of PLC controls；Control system and effusion meter
Number mechanism, the electronic weighing appliance electrical connection of metrological service.
Also include measurement electromagnetic valve simultaneously；The measurement electromagnetic valve includes nominal flow rate electromagnetic valve, boundary flow solenoid valve
With minimum discharge electromagnetic valve；The flow is calculated as spinner flowmeter, including with the measurement each self-corresponding nominal flow rate meter of electromagnetic valve,
Boundary effusion meter and minimum stream gauge；Pipeline is divided into three road branch roads, the nominal stream between test pipeline section tail end and diverter
Amount electromagnetic valve and nominal flow rate meter, boundary flow solenoid valve and boundary effusion meter and minimum discharge electromagnetic valve and minimum stream gauge
It is separately positioned on the branch road of aforementioned three road.
The mode that at present water meter of all of prior art is verified, the calibration standard that 03-09 is adopted is by big stream
Water meter is calibrated in the case of amount, boundary three flows of flow and low discharge, greatest problem present in it there are two,
First, the calculating of error reached using the measurement on this 3 points of big flow, boundary flow and low discharge not can completely
The error for showing the water meter is not necessarily completely in the range of technical requirements, still can be there is an other deviation water meter and be occurred,
Second, be required for again measuring after Flow-rate adjustment to stable process during flow is adjusted every time, adjust flow when
Between plus the current stabilization time add time of measuring, all longer for the time of measuring of water meter each time, the water meter quantity that can be calibrated for one day
Very limited, sooner or later the effect of detection is different, and impact of the temperature to watch core is very big, and table on the contrary can after many times having detected
There is error.
Utility model content
For above-mentioned deficiency of the prior art, this utility model provides a kind of water meter convenient mounting and clamping and automatically controls flow velocity
Continuous measurement being realized with flow and state modulator being stable, calibration error is extremely low, the high fully-automatic series water meter school of calibration efficiency
Test assay device.
To realize above technical purpose, the technical solution of the utility model is:A kind of fully-automatic series water meter verification calibrating
Device, including device body, PLC, meter clamping mechanism, constant pressure mechanism, constant temperature mechanism, flow control valve, water tank, image are adopted
Acquisition means and water pipe, the meter clamping mechanism includes that water gage bracket, water meter fixture and telescopic cylinder are multiple, and the water gage bracket is arranged on dress
Put on body, the cylinder body of the telescopic cylinder is arranged on water gage bracket, and the water meter fixture is arranged on the telescopic end of telescopic cylinder
On, the water meter fixture is provided with conduction pipe, and the constant pressure mechanism includes water pump, converter, vacuum tank and pressure transducer, institute
State water pump, vacuum tank and pressure transducer to be serially connected on water pipe, the pressure transducer is also electrically connected with PLC, described
PLC is also sequentially connected electrically with converter and water pump, and the constant temperature mechanism includes water chiller, immersible pump and temperature sensing
Device, the immersible pump is located in water tank and connect with water chiller, and the temperature sensor is located in water tank, the water chiller, dives
Water pump and temperature sensor are electrically connected with PLC, and the flow control valve is serially connected on water pipe and connects with PLC
Connect, also including electronic scale heavy-duty machine, electronic scale heavy-duty machine be arranged on device body on and with water pipe UNICOM.
Preferably, the conduction pipe includes conducting tube body and supporting part, the supporting part is arc and and conduction pipe
The lower opening portion connection of body.
The structure preferably, the conducting tube body and supporting part are formed in one.
Preferably, the flow control valve includes the ball valve comprising valve element and valve element connecting rod being connected on water pipe
Door, the servomotor for driving the Ball valve and zero point positioner, and for connect the servo motor output shaft with
The shaft coupling of the valve element connecting rod of the Ball valve, the servomotor closed mode orientates zero point as, and by the feedback of status
To servomotor so as to the aperture of Ball valve described in the Serve Motor Control, the valve element top is provided with groove, the ball valve
The valve element connecting rod lower end of door is placed in groove；The valve element of the Ball valve is the spheroid that a center is provided with manhole, described
Valve element is provided with the microflute that several are easy to current to pass through on ball internal chamber wall, and the microflute is communicated with the manhole.
Preferably, diameter of the diameter of the manhole of the valve element less than outlet.
Preferably, the microflute is " V " type.
Preferably, the microflute is distributed on the ball lumen circumference, quantity is 1-3.
Preferably, the microflute is 2 symmetrical " V " type grooves.
From the above, it can be seen that this utility model possesses advantages below：First, by servomotor, zero-point positioning
Cooperation between device, Ball valve and microflute can allow the adjustment node of flow velocity to be formed continuously from original distributing measurement
Property measurement.
Secondly, the pressure in water pipe can be caused by the cooperation between pressure transducer, converter, water pump and vacuum tank
Keep constant, while the cooperation of water chiller, immersible pump and water tank can cause the water flow temperature in water pipe to keep constant, so that
The parameters for obtaining the current to be measured in water pipe keep stable, so that the fixed stability of water meter amount.
Again, no longer it is the swing circle of pointer by the data of image acquisition device, but the deflection angle of pointer
Degree, using the ratio calculation error between deflection angle and predetermined deflection angle.
Furthermore, water gage bracket by water meter fixture, conducting tube body and supporting part between cooperation cause water meter put and
The work extremely convenient of clamp, greatly improves the efficiency of water pump composite to be measured.
In view of the foregoing it is apparent that mistake is being installed and measured to fully-automatic series water meter verification assay device of the present utility model
The mode of difference and calculation error compare it is at present existing be extremely improved and improve for the mode of water meter verification, it is right
For water meter dispatches from the factory, the quantitative requirement of personnel is not only greatly reduced while also improving the verification quantity of water meter.
Description of the drawings
Fig. 1 is the front view that fully-automatic series water meter of the present utility model verifies assay device；
Fig. 2 is the structural representation that fully-automatic series water meter of the present utility model verifies assay device；
Fig. 3 is the close-up schematic view of the A of fully-automatic series water meter verification assay device of the present utility model；
Fig. 4 is the structural representation of the conduction pipe of fully-automatic series water meter verification assay device of the present utility model；
Fig. 5 is the rearview that fully-automatic series water meter of the present utility model verifies assay device；
Fig. 6 is the structural representation of the flow control valve of fully-automatic series water meter verification assay device of the present utility model；
Fig. 7 is the signal of the front view of the Ball valve valve element of fully-automatic series water meter verification assay device of the present utility model
Figure；
Fig. 8 is the Ball valve valve element of the flow control valve of fully-automatic series water meter verification assay device of the present utility model
Left view schematic diagram.
Description of the drawings：1st, device body, 2, PLC, 3, water tank, 4, image collecting device, 5, water pipe, 6, water meter
Frame, 7, water meter fixture, 71, conduction pipe, 711, conducting tube body, 712, supporting part, 8, telescopic cylinder, 9, water pump, 10, frequency conversion
Device, 11, vacuum tank, 12, pressure transducer, 13, water chiller, 14, immersible pump, 15, temperature sensor, 16, electronic scale restatement,
17th, flow control valve, 171, servomotor, 172, shaft coupling, 173, zero point positioner, 174, Ball valve, 175, manhole,
176. microflute.
Specific embodiment
As shown in drawings, a kind of fully-automatic series water meter verifies assay device, including device body 1, PLC 2, folder
Table mechanism, constant pressure mechanism, constant temperature mechanism, flow control valve 17, water tank 3, image collecting device 4 and water pipe 5, the meter clamping mechanism
Including water gage bracket 6, water meter fixture 7 and telescopic cylinder more than 8, the water gage bracket 6 is arranged on device body 1, the flexible gas
The cylinder body of cylinder 8 is arranged on water gage bracket 6, and the water meter fixture 7 is arranged on the telescopic end of telescopic cylinder 8, the water meter fixture 7
Conduction pipe 71 is provided with, the constant pressure mechanism includes water pump 9, converter 10, vacuum tank 11 and pressure transducer 12, the water pump
9th, vacuum tank 11 and pressure transducer 12 are serially connected on water pipe 5, and the pressure transducer 12 is also electrically connected with PLC 2, institute
State PLC 2 to be also sequentially connected electrically with converter 10 and water pump 9, the constant temperature mechanism includes water chiller 13, the and of immersible pump 14
Temperature sensor 15, the immersible pump 14 is located in water tank 3 and connects with water chiller 13, and the temperature sensor 15 is located at water tank
In 3, the water chiller 13, immersible pump 14 and temperature sensor 15 are electrically connected with PLC 2, the flow control valve 17
It is serially connected on water pipe 5 and is connected with PLC 2, also including electronic scale restatement 16, electronic scale restatement 16 is arranged on device body
On 1 and with the UNICOM of water pipe 5；The conduction pipe 71 includes conducting tube body 711 and supporting part 712, and the supporting part 712 is arc
And be connected with the lower opening portion of conducting tube body 711；The conducting tube body 711 and supporting part 712 are formed in one structure；Institute
Stating flow control valve 17 includes the Ball valve 174 comprising valve element and valve element connecting rod being connected on water pipe, described for driving
The servomotor 171 and zero point positioner 173 of Ball valve, and for connecting the servo motor output shaft with the Ball valve
Valve element connecting rod shaft coupling 172, the closed mode of the servomotor 171 orientates zero point as, and by the feedback of status to being watched
Motor 171 is taken so that the servomotor 171 controls the aperture of the Ball valve 174, the valve element top is provided with groove, described
The valve element connecting rod lower end of Ball valve 174 is placed in groove 177；The valve element of the Ball valve 174 is provided with circular logical for a center
The spheroid in hole 175, the valve element is provided with the microflute 176 that several are easy to current to pass through on ball internal chamber wall, the microflute 176 with
The manhole 175 is communicated；Diameter of the diameter of the manhole 175 of the valve element less than outlet；The microflute 176 is
" V " type；The microflute 176 is distributed on the ball lumen circumference, and quantity is 1-3；The microflute 176 is 2 symmetrical
" V " type groove.
In the specific implementation, PLC is existed by controlling immersible pump the water in water tank and water chiller being carried out into heat exchange
While ensureing T30 standards, the water temperature in water tank is controlled at 25 degree or so, water meter to be measured is directly placed on water meter fixture
Supporting part on, PLC control telescopic cylinder clamps in water meter to be measured by water meter fixture, and PLC is by zero point
Servomotor is opened after the feedback of localizer, and then servomotor is opened Ball valve by shaft coupling, passed through after opening
The list being preset in PLC selects corresponding flow velocity, current to flow in electronic scale restatement by water pipe conduction pipe and water meter, the water
Pressure transducer on pipe, manostat, converter and water pump are all connected with PLC, and PLC passes through pressure sensing
Pressure feedback on device is so as to adjusting manostat and adjusting pump working by converter, and then the pressure adjusted in water pipe is caused
In preset value, in the case where pressure and water temperature and flow velocity are all stablized, PLC captures image collecting device to pressure
Collection picture, realizes angle proportional algorithm, so as to realize the calculating of error by the deflection angle of pointer；When calculating the flow velocity
Under error when, further adjust the rotation of servomotor, so as to further change flow velocity, measure the mistake of next flow velocity node
Difference.
Such design presence is advantageous in that：First, by servomotor, zero point positioner, Ball valve and microflute it
Between cooperation can allow flow velocity adjustment node from original distributing measurement formed seriality measurement.
Secondly, the pressure in water pipe can be caused by the cooperation between pressure transducer, converter, water pump and vacuum tank
Keep constant, while the cooperation of water chiller, immersible pump and water tank can cause the water flow temperature in water pipe to keep constant, so that
The parameters for obtaining the current to be measured in water pipe keep stable, so that the fixed stability of water meter amount.
Again, no longer it is the swing circle of pointer by the data of image acquisition device, but the deflection angle of pointer
Degree, using the ratio calculation error between deflection angle and predetermined deflection angle.
Furthermore, water gage bracket by water meter fixture, conducting tube body and supporting part between cooperation cause water meter put and
The work extremely convenient of clamp, greatly improves the efficiency of water pump composite to be measured.
In view of the foregoing it is apparent that mistake is being installed and measured to fully-automatic series water meter verification assay device of the present utility model
The mode of difference and calculation error compare it is at present existing be extremely improved and improve for the mode of water meter verification, it is right
For water meter dispatches from the factory, the quantitative requirement of personnel is not only greatly reduced while also improving the verification quantity of water meter.
This utility model and embodiments thereof are described above, the description does not have restricted, shown in accompanying drawing
Also it is one of embodiment of the present utility model, actual structure is not limited thereto.If generally speaking this area is general
Logical technical staff is enlightened by it, in the case where objective is created without departing from this utility model, is designed and this without creative
The similar frame mode of technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (8)
1. a kind of fully-automatic series water meter verifies assay device, including device body (1), PLC (2), meter clamping mechanism, perseverance
Press mechanism, constant temperature mechanism, flow control valve (17), water tank (3), image collecting device (4) and water pipe (5), the meter clamping mechanism
It is multiple including water gage bracket (6), water meter fixture (7) and telescopic cylinder (8), the water gage bracket (6) on device body (1),
The cylinder body of the telescopic cylinder (8) is arranged on water gage bracket (6), and the water meter fixture (7) is installed in the flexible of telescopic cylinder (8)
On end, the water meter fixture (7) is provided with conduction pipe (71), and the constant pressure mechanism includes water pump (9), converter (10), voltage stabilizing
Tank (11) and pressure transducer (12), the water pump (9), vacuum tank (11) and pressure transducer (12) are serially connected on water pipe (5),
The pressure transducer (12) also electrically connects with PLC (2), the PLC (2) also with converter (10) and water pump
(9) it is sequentially connected electrically, the constant temperature mechanism includes water chiller (13), immersible pump (14) and temperature sensor (15), the diving
Pump (14) is located in water tank (3) and connects with water chiller (13), and the temperature sensor (15) is located in water tank (3), described cold
Hydrophone (13), immersible pump (14) and temperature sensor (15) are electrically connected with PLC (2), the flow control valve (17)
It is serially connected on water pipe (5) and is connected with PLC (2), also including electronic scale restatement (16), electronic scale restatement (16) is arranged on
On device body (1) and with water pipe (5) UNICOM.
2. fully-automatic series water meter according to claim 1 verifies assay device, it is characterised in that：The conduction pipe (71)
Including conducting tube body (711) and supporting part (712), the supporting part (712) for arc and with turn on opening for tube body (711)
The connection of mouth bottom.
3. fully-automatic series water meter according to claim 2 verifies assay device, it is characterised in that：The conducting tube body
(711) it is formed in one structure with supporting part (712).
4. fully-automatic series water meter according to claim 1 verifies assay device, it is characterised in that：The flow control valve
(17) including the Ball valve comprising valve element and valve element connecting rod (174) being connected on water pipe, for driving the Ball valve
Servomotor (171) and zero point positioner (173), and for connecting the valve of the servo motor output shaft and the Ball valve
The shaft coupling (172) of core connecting rod, servomotor (171) closed mode orientates zero point as, and the feedback of status is watched
The aperture that motor (171) is taken so that the servomotor (171) controls the Ball valve (174), the valve element top is provided with recessed
Groove, the valve element connecting rod lower end of the Ball valve (174) is placed in groove (177)；The valve element of the Ball valve (174) be one in
The heart is provided with the spheroid of manhole (175), and the valve element is provided with the microflute that several are easy to current to pass through on ball internal chamber wall
(176), the microflute (176) communicates with the manhole (175).
5. fully-automatic series water meter according to claim 4 verifies assay device, it is characterised in that：The circle of the valve element
Diameter of the diameter of through hole (175) less than outlet.
6. fully-automatic series water meter according to claim 4 verifies assay device, it is characterised in that：The microflute (176)
For " V " type.
7. fully-automatic series water meter according to claim 4 verifies assay device, it is characterised in that：The microflute (176)
It is distributed on the ball lumen circumference, quantity is 1-3.
8. fully-automatic series water meter according to claim 4 verifies assay device, it is characterised in that：The microflute (176)
For 2 symmetrical " V " type grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621185338.XU CN206161119U (en) | 2016-11-04 | 2016-11-04 | Full -automatic series connection water gauge check -up calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621185338.XU CN206161119U (en) | 2016-11-04 | 2016-11-04 | Full -automatic series connection water gauge check -up calibrating installation |
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| Publication Number | Publication Date |
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| CN206161119U true CN206161119U (en) | 2017-05-10 |
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| CN201621185338.XU Active CN206161119U (en) | 2016-11-04 | 2016-11-04 | Full -automatic series connection water gauge check -up calibrating installation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441521A (en) * | 2016-11-04 | 2017-02-22 | 江苏金钰铭电子有限公司 | Full-automatic serial connection water meter verification and calibration device |
-
2016
- 2016-11-04 CN CN201621185338.XU patent/CN206161119U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441521A (en) * | 2016-11-04 | 2017-02-22 | 江苏金钰铭电子有限公司 | Full-automatic serial connection water meter verification and calibration device |
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