CN202433063U - Device for verifying and calibrating water meter - Google Patents
Device for verifying and calibrating water meter Download PDFInfo
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- CN202433063U CN202433063U CN201120534283XU CN201120534283U CN202433063U CN 202433063 U CN202433063 U CN 202433063U CN 201120534283X U CN201120534283X U CN 201120534283XU CN 201120534283 U CN201120534283 U CN 201120534283U CN 202433063 U CN202433063 U CN 202433063U
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Abstract
The utility model discloses a device for verifying and calibrating a water meter. The device comprises a water meter verification basic mechanism, flow counting mechanisms, a metering mechanism, pipelines and a control system; a standard mechanism comprises a standard water source device, and a testing pipe section which is formed by serially connecting a plurality of testing straight pipe sections with a plurality of water meters to be detected at intervals; each water meter to be detected corresponds to a corresponding flow counting mechanism; the metering mechanism comprises two kinds of high-accuracy electronic weighing equipment which has different sizes and can meet different flow weighing requirements and two work containers with different volumes; and the control system is electrically connected with the flow counting mechanisms and the electronic weighing equipment in two directions. The device is controlled by an industrial automation mechanism which combines a computer remote control mode with an onsite programmable logic control (PLC) mode and a singlechip control mechanism in which an embedded system is used as a main part, so that the water meter can be fully automatically calibrated, and the device is easy and convenient to operate; and the labor intensity is greatly reduced and the calibration accuracy is improved on the premise of eliminating human subjective influences.
Description
Technical field
The utility model relates to a kind of water meter verification calibrating installation.
Background technology
Water meter is widely used in industries such as tap water, heating power, chemical industry, and the enterprise or the metrological service that produce water meter need carry out the performance calibrating to the rules that the error of indication of these water meters is formulated according to relevant departments.The national metrological verification regulations regulation must be carried out three flow point tolerance calibratings such as nominal flow rate, boundary flow, minimum flow to water meter.Adopt manual static start and stop volume relative method at present mostly; The testing person needs manual three switching discharges; Read for four times by the water gauge registration and carry out standard measuring device liquid level gauge water level for three times and read; These data of manual record also calculate various errors, and manual again calibrating data input computer is convenient to file, inquires about and printed.The testing person needs the operation of real-time control verification device in the whole verification process; The artificial valve-off that when reading various registration, needs is waited for liquid level stabilizing in the standard capacity measure, the stability in these start and stop stages, the parallax error of level readings, all will be influenced the calibration precision by water gauge indicating graduation resolution and artificial origin.Numerous defectives such as the workload that this calibrating mode exists is big, efficient is low, precision is low, personal error is big, verification result is not objective are obvious.
The water meter verification calibrating installation that generally uses has three kinds:
1. manually-operated is connected with withstand voltage water meter calibration device: this kind device is more original static start-stop volumetric method device; Utilize the judgement of human eye to carry out manually-operated; Read the start-stop of numeral, adjusting flow point and the stopwatch water consumption of red pointer, have very big personal error.Calibration efficient is low, and error is big, and personnel use many.
2. withstand voltage water meter calibration device (static start-stop volumetric method device) is with in infrared controlled standard series connection: this kind device is on manually-operated basis; On the standard capacity measure device, install infrared limit switch and solenoid valve additional, reduced the error that produces when artificial pass cuts off the water relatively.The spacing sum of errors of infrared limit switch is still continued to use the mode of artificial copy reading calibrating expression number, has determined that the error of this device is still very big.
3. camera head type is connected with withstand voltage water meter calibration device (static start-stop mass method device): this kind device is on manually-operated device, to have carried out bigger change, has realized semi-automation.Install camera additional, replace artificial copy reading number; Weighed generation standard measuring device with electronics, the calibration precision increases.Extraneous light source disturbs and the bubble of gauge outfit disturbs but camera receives when capturing image easily; Very easily producing the image captured can't identification and identification error and cause reading entanglement or can't the reading phenomenon; Need operating personnel in time on software, to revise, personnel's computation is required than higher.This device also can not bring new operating process and operation easier when thoroughly not dealing with problems.
The utility model content
The purpose of the utility model provides and a kind ofly can reduce human resources significantly, improves verification efficient and promote calibration accuracy and detecting operation standard compliant automatic control water meter verification calibrating installation fully.
The technical scheme that realizes the utility model purpose is a kind of water meter verification calibrating installation, comprises water meter calibration fundamental mechanism, flow counting mechanism, metering mechanism, pipeline and control system; Said water meter calibration fundamental mechanism comprises water source device, treats the test pipeline section that water gauge is composed in series at interval by more piece test straight length and polylith that the test pipeline section is arranged on the calibration table top; Treat the corresponding flow counting mechanism of water gauge for said every; Said metering mechanism comprises flowmeter, Work container and electronic-weighing equipment; The tail end of said test pipeline section will be tested water through pipeline and introduce flowmeter and Work container successively; It is main Single-chip Controlling mechanism with the embedded system perhaps that said control system adopts computer remote control to combine the industrial automation control gear of on-the-spot PLC control, and control system is electrically connected with the electronic-weighing equipment of flow counting mechanism, metering mechanism; Said Work container comprises not isometric nominal flow rate Work container and boundary/minimum flow Work container; Said electronic-weighing equipment comprises nominal flow rate electronic-weighing equipment different ranges, that be arranged at nominal flow rate Work container bottom and is arranged at the boundary/minimum flow electronic-weighing equipment bottom boundary/minimum flow Work container.
Aforesaid standards water meter verification calibrating installation also comprises the automatic vent mechanism by control system control; Said automatic vent mechanism comprise be successively set on test the pipeline that the pipeline section tail end is communicated with on vacuumize solenoid valve, vacuum control check valve, vacuum water filter and vacuum pump.
Aforesaid standards water meter verification calibrating installation also comprises the automatic resistance test mechanism by control system control; Said automatic resistance test mechanism comprises pressure transducer, pressure solenoid valve and supercharge pump; Said pressure solenoid valve and pressure transducer be arranged on test the pipeline that the pipeline section head end is communicated with on; Said supercharge pump be arranged on test the pipeline that the pipeline section head end is communicated with on.
The photo-impulses counting mechanism that said flow counting mechanism is a waterproof; Said calibration table top is provided with the flow counting institutional adjustment track parallel with testing pipeline section; Said flow counting mechanism comprises sliding bottom, base fixator, actuator, angle controller, angle stop, metal connector, horizontal level micro actuator, light pulse sensor; Said sliding bottom and flow counting institutional adjustment track are slidingly connected; Said base fixator is arranged on the sliding bottom; The angular turn device is set, angular turn device fixed angle controller in the said actuator; Said angle controller is arranged on the actuator, and is rotationally connected with it; Said angle stop is fixed on the actuator; The two ends of said metal connector are fixedly connected with angle controller with the horizontal level micro actuator respectively; Said light pulse sensor is fixed on the end of horizontal level micro actuator, and is electrically connected with control system.
Aforesaid standards water meter verification calibrating installation also comprises the measurement solenoid valve; Said measurement solenoid valve comprises nominal flow rate solenoid valve, boundary flow solenoid valve and minimum flow solenoid valve; Said flow is counted spinner-type flowmeter, comprises and each self-corresponding nominal flow rate meter of measurement solenoid valve, boundary flowmeter and minimum flow meter; Pipeline is divided into three road branch roads at test pipeline section tail end; Said nominal flow rate solenoid valve and nominal flow rate meter, boundary flow solenoid valve and flowmeter and minimum flow solenoid valve and the minimum flow score of demarcating are not arranged on aforementioned three road branch roads; The water side of nominal flow rate meter is introduced the nominal flow rate Work container through pipeline with water, and the water side of boundary flowmeter and minimum flow meter is introduced boundary/minimum flow Work container through pipeline with water.
Aforesaid standards water meter verification calibrating installation also comprises the temperature sensor that is electrically connected with control system; On said temperature sensor and the pipeline that test pipeline section head end is communicated with.
Said water meter calibration fundamental mechanism also comprises total water inlet air valve and voltage-withstand test air valve; Said water source device is the standard water source apparatus; Said pipeline with water source device, test straight length and treat that water gauge is communicated with successively; Said total water inlet air valve and voltage-withstand test air valve are controlled by control system, be separately positioned on test the pipeline that the pipeline section head end is communicated with on and with pipeline that test pipeline section tail end is communicated with on; Said metering mechanism also comprises the Work container draining valve; Said Work container draining valve comprises nominal flow rate Work container draining valve and boundary/minimum flow Work container draining valve, is separately positioned on nominal flow rate Work container and boundary/minimum flow Work container and the pipeline that water source device is communicated with.
Said test pipeline section has N row, and N is a natural number; Said every row tests the automatic resistance test of a pipeline section common corresponding automatic vent mechanism of respectively corresponding or every adjacent two rows mechanism to be checked and mechanism.
Said water meter verification calibrating installation carries out communication through Ethernet and remote control center; Said remote control center comprises monitor control mechanism and data-carrier store.
Adopt technique scheme, the utlity model has following beneficial effect:
(1) the water meter verification calibrating installation of the utility model is realized the full-automation of calibration process through control system; Control system can adopt computer remote control to combine the industrial automation mechanism of on-the-spot PLC control or be that main Single-chip Controlling mechanism controls and realizes full-automatic calibration with the embedded system; Dress table back needs only the click initiating key at the computation interface;---voltage-withstand test---nominal flow rate---boundary flow---detection of minimum flow that device will be accomplished vacuumizing and exhausting successively; Calibrating finishes the back device and joins fixed computing machine calibrating software and calculate verification result by rules automatically and preserve; Have perfect database functions such as calibrating data query, correction, statistics, printing, wasted time and energy and calibration process that precision is not high is reduced to simple dress table and gets report in the past, easy and simple to handle; Thereby greatly reduce labour intensity, on the basis of eliminating personal error, improve accuracy in detection.
(2) the utility model utilizes vacuum pump to vacuumize to make and treats to form negative pressure in water gauge and the test straight length, does not have bubble behind the water-filling, realizes self-bleeding function.
(3) the utility model uses the automatic resistance test mechanism of band pressure transducer to combine with control system to control miniature electromagnetic valve and realizes automatic resistance test.
(4) the utility model adopts method of standard table to combine the static start-stop mass method to realize the calibrating of water meter.Use the high-precision electronic weighing-appliance and the not isometric Work container of two kinds of different ranges, the metering mechanism of public scale flow and boundary/minimum flow separately, satisfied different volumes measurement water high-precision weighing needs in the different flow test.Meet the requirement of national metrological verification regulations JJG 164-2000, be fit to very much water meter testing agency Work container and start and stop equipment.
(5) the utility model uses light pulse sensor accumulative total to treat the number of turns of water gauge cutaneous acupuncture; Signal is transferred to general switching software and carries out backstage comparison calculating; Draw the calibrating data, reach full-automatic copy reading number, improved the accuracy and the work efficiency of calibrating; It is the requirement of 1/2 minimum division value that the meter reading that meets national metrological verification regulations JJG 162-2009 etc. fully requires permissible error, and light pulse sensor reading precision can reach 1/6 of the minimum calibrating of water meter scale division value.
(6) the flow counting mechanism of the utility model can move on the calibration table top, and the installation site is easy to adjust, therefore can be adapted to the flow metering of treating water gauge of different vendor, different size, different model or varying number.
(7) the utility model reload temperature sensor; Feedback current actual temperature signal is given control system; So that water source temperature in the adjustment temperature control constant voltage water source mechanism; In addition the general switching software backstage is revised, and the tracking that has realized water-mass density is confirmed and revised automatically, meets the water-mass density requirement of national metrological verification regulations JJG 162-2009 to mass method fully.
(8) the utility model can also be networked many water meter verification calibrating installations through Ethernet; And carry out communication with the remote control center that comprises monitor control mechanism and data-carrier store; Every water meter verification calibrating installation also uploads to remote monitoring center automatically with the calibration data storage; In the time of can accomplishing to occur fault such as suspension like this, detect data storage in water meter verification calibrating installation, data can not be lost; Monitor control mechanism can be monitored each water meter school in real time and far test the calibration situation of calibrating installation and in time adjust, and data-carrier store is far tested each water meter school the calibration situation storage of calibrating installation in order to inquiry at any time.
(9) the utility model can realize that many rows carry out full automatic cold water meter verification simultaneously, have further improved work efficiency.
Description of drawings
For the content that makes the utility model is expressly understood more easily,, the utility model is done further detailed explanation, wherein below according to specific embodiment and combine accompanying drawing
Fig. 1 is the structure principle chart of the utility model.
Fig. 2 is the structural representation of the flow counting mechanism of the utility model.
Label in the accompanying drawing is:
Water meter calibration fundamental mechanism 1, test straight length 11, treat water gauge 12, calibration table top 13, flow counting institutional adjustment track 13-1, standard water source apparatus 14, always intake air valve 15, voltage-withstand test air valve 16; Flow counting mechanism 2, sliding bottom 21, base fixator 22, actuator 23, angle controller 24, angle stop 25, metal connector 26, horizontal level micro actuator 27, light pulse sensor 28; Metering mechanism 3, flowmeter 31, nominal flow rate meter 31-3, boundary flowmeter 31-2, minimum flow meter 31-1, Work container 32, nominal flow rate Work container 32-1, boundary/minimum flow Work container 32-2, electronic-weighing equipment 33, nominal flow rate electronic-weighing equipment 33-1, boundary/minimum flow electronic-weighing equipment 33-2, Work container draining valve 35, nominal flow rate Work container draining valve 35-1, boundary/minimum flow Work container draining valve 35-2; Pipeline 4; Control system 5; Automatic vent mechanism 6, vacuumize solenoid valve 61, vacuum control check valve 62, vacuum water filter 63, vacuum pump 64; Automatic resistance test mechanism 7; Flow solenoid valve 8, nominal flow rate solenoid valve 81, boundary flow solenoid valve 82, minimum flow solenoid valve 83; Temperature sensor 9; Remote control center 10, monitor control mechanism 101, data-carrier store 102.
Embodiment
(embodiment 1)
See Fig. 1; A kind of water meter verification calibrating installation of present embodiment comprises water meter calibration fundamental mechanism 1, flow counting mechanism 2, metering mechanism 3, pipeline 4, control system 5, automatic vent mechanism 6, automatic resistance test mechanism 7, flow solenoid valve 8 and temperature sensor 9.
Water meter calibration fundamental mechanism 1 comprises that more piece test straight length 11, polylith treat water gauge 12, calibration table top 13, standard water source apparatus 14, always intake air valve 15 and voltage-withstand test air valve 16.More piece test straight length 11 treats that with polylith water gauge 12 is composed in series the test pipeline section at interval, and the test pipeline section is arranged on the calibration table top 13 among Fig. 1, and calibration table top 13 is provided with and tests the parallel corresponding flow counting mechanism adjustment of pipeline section track 13-1; Pipeline 4 is with standard water source apparatus 14, test straight length 11 and treat that water gauge 12 is communicated with successively; Total water inlet air valve 15 and voltage-withstand test air valve 16 be by control system 5 controls, be separately positioned on test the pipeline 4 that the pipeline section head end is communicated with on and with test the pipeline 4 that the pipeline section tail end is communicated with on.
Treat water gauge 12 all corresponding flow counting mechanisms 2 for every; See Fig. 2, flow counting mechanism 2 is the photo-impulses counting mechanism of waterproof; Calibration table top 13 is provided with the flow counting institutional adjustment track 13-1 parallel with testing pipeline section; Flow counting mechanism 2 comprises sliding bottom 21, base fixator 22, actuator 23, angle controller 24, angle stop 25, metal connector 26, horizontal level micro actuator 27, light pulse sensor 28; Sliding bottom 21 is slidingly connected with flow counting institutional adjustment track 13-1; Base fixator 22 is arranged on the sliding bottom 21; Actuator is fixed on the sliding bottom 21 through sliding bottom brace 23-1, and the angular turn device is set in the actuator 23, angular turn device fixed angle controller 24; Angle controller 24 is arranged on the actuator 23, and is rotationally connected with it; Angle stop 25 is fixed on the actuator 23; The two ends of metal connector 26 are fixedly connected with angle controller 24 with horizontal level micro actuator 27 respectively; Light pulse sensor 28 is fixed on horizontal level micro actuator 27 ends, and is electrically connected with control system 5.Install treat water gauge 12 after, flow counting mechanism 2 is moved to corresponding water gauge 12 places that treat, by base fixator 22 location.When needs carry out the flow counting; Control system 5 sends instruction; Angular turn device in the control actuator 23 drives angle controller 24 and metal connector 26 rotations, makes light pulse sensor 28 carry out the flow counting near the surface of treating water gauge 12, if the position of rotation is not ideal enough; Can adjust light pulse sensor 28 and treat the distance and the angle on the surface of water gauge 12 through horizontal level micro actuator 27, in the hope of obtaining counting position the most accurately.After all the test of flow point finishes, send instruction by control system 5, it is spacing until being subject to the angle stop that the angular turn device in the control actuator 23 drives angle controller 24 reverse rotations, is convenient to treat that water gauge takes out from this device.
Metering mechanism 3 comprises flowmeter 31, Work container 32, electronic-weighing equipment 33 and Work container draining valve 35.Flowmeter 31 is a spinner-type flowmeter, comprises and flow solenoid valve 8 each self-corresponding nominal flow rate meter 31-1, boundary flowmeter 31-2 and minimum flow meter 31-3.Work container 32 comprises nominal flow rate Work container 32-1 and boundary/minimum flow Work container 32-2.Pipeline 4 is divided into three road branch roads at test pipeline section tail end; Nominal flow rate meter 31-3, boundary flowmeter 31-2 and minimum flow meter 31-1 are separately positioned on aforementioned three road branch roads; The water side of nominal flow rate meter 31-3 is introduced nominal flow rate Work container 32-1 through pipeline 4 with water, and the water side of boundary flowmeter 31-2 and minimum flow meter 31-1 is introduced boundary/minimum flow Work container 32-2 through pipeline 4 with water.Electronic-weighing equipment 33 and control system 5 two-way electrical connections comprise nominal flow rate electronic-weighing equipment 33-1 that is arranged at nominal flow rate Work container 32-1 bottom and the boundary/minimum flow electronic-weighing equipment 33-2 that is arranged at boundary/minimum flow Work container 32-2 bottom.In the present embodiment, adopt high-precision electronic weighing-appliance and 2 kinds of not isometric Work containers of 2 kinds of different sizes.Work container draining valve 35 comprises nominal flow rate Work container draining valve 35-1 and boundary/minimum flow Work container draining valve 35-2; Be separately positioned on nominal flow rate Work container 32-1 and boundary/minimum flow Work container 32-2 and the pipeline 4 that standard water source apparatus 14 is communicated with; Be used for automatically the water in the Work container 32 being emptied to standard water source apparatus 14, to reach recycle water resource purpose.
Water meter verification calibrating installation is realized the full-automation of calibration process through control system 5; Control system 5 can adopt computer remote control to combine the industrial automation mechanism of on-the-spot PLC control or be that main Single-chip Controlling mechanism controls and realizes full-automatic calibration with the embedded system; Control system 5 is as the control core of whole water meter verification calibrating installation; Be used to receive the data that each sensor, electronic-weighing equipment, Work container etc. detect; And these data are analyzed and compare, and then send the action that each solenoid valve of control command control, air valve etc. put rules into practice, thus the calibration process accomplished automatically.
Automatic vent mechanism 6 is by control system 5 controls.Automatic vent mechanism 6 comprise be successively set on test the pipeline 4 that the pipeline section tail end is communicated with on vacuumize solenoid valve 61, vacuum control check valve 62, vacuum water filter 63 and vacuum pump 64.
Automatically resistance test mechanism 7 is by control system 5 controls.Automatically resistance test mechanism 7 comprises pressure transducer, pressure solenoid valve and supercharge pump; Pressure solenoid valve and pressure transducer be arranged on test the pipeline 4 that the pipeline section head end is communicated with on; Supercharge pump be arranged on test the pipeline 4 that the pipeline section head end is communicated with on.
Flow solenoid valve 8 comprises nominal flow rate solenoid valve 81, boundary flow solenoid valve 82 and minimum flow solenoid valve 83; Pipeline 4 is divided into three road branch roads at test pipeline section tail end, and nominal flow rate solenoid valve 81, boundary flow solenoid valve 82 and minimum flow solenoid valve 83 are separately positioned on aforementioned three road branch roads.
Temperature sensor 9 is electrically connected with control system 5.On temperature sensor 9 and the pipeline 4 that test pipeline section head end is communicated with.
Control system 5 can also be through the water meter verification calibrating installation networking of Ethernet with many playscripts with stage directions embodiment; And carry out communication with the remote control center 10 that comprises monitor control mechanism 101 and data-carrier store 102; Every water meter verification calibrating installation also uploads to remote monitoring center 10 automatically with the calibration data storage; Monitor control mechanism 101 can be monitored each water meter school in real time and far test the calibration situation of calibrating installation and in time adjust, and data-carrier store 102 is far tested each water meter school the calibration situation storage of calibrating installation in order to inquiry at any time.
One row's test pipeline section has been shown among Fig. 1, and pipeline 4 supplies water for corresponding row's test pipeline section at standard water source apparatus 14 through total water inlet air valve 17 controls.An one row test shared automatic vent mechanism 6 of pipeline section and an automatic resistance test mechanism 7 certainly, also can be to detect many row's test pipeline sections simultaneously, and many rows test pipeline sections also can use the automatic resistance test of an automatic vent mechanism 6 and mechanism 7 respectively.It is 15 that the water meter verification calibrating installation of present embodiment can be measured diameter---the cold-water meter of 25mm.
Current through total water inlet air valve 15, treat that water gauge 12, flow solenoid valve 8, flowmeter 31 to Work container 32, get back to standard water source apparatus 14 at last.When the stability of flow of flowmeter 31, carry out electronic scale 31 meterings and light pulse sensor 28 countings, control system 5 extracts the actual metered value and light pulse sensor count value is carried out data processing, and testing result forms report automatically.
The concrete operations step is following:
One, Installation and Debugging and the exhaust of pipeline automatic vacuum: on aut.eq., install and treat water gauge 12; Click software operation interface initiating key, control system 5 control vacuum pumps 64 are started working, and open and vacuumize solenoid valve 61; Pressure transducer by automatic resistance test mechanism 7 transmits numerical value to control system 5; Treat that water gauge 12 and the air in the test straight length 11 discharge through vacuum control check valve 62 and vacuum water filter 63, vacuum tightness reaches setting value (operation interface shows the examination value), makes that institute's calibration inner chamber and test pipeline are interior to become negative pressure state; So that can complete filling treat water gauge and test pipeline after injecting the test water, stop bubble phenomenon.Vacuumize end back control system and close vacuum pump 64 and vacuumize solenoid valve 61, finish automatic vent work.
Two, automatic resistance test: total water inlet air valve 15, nominal flow rate solenoid valve 81, boundary flow solenoid valve 82 and minimum flow solenoid valve 83 are opened in control system 5 controls behind the automatic vent end-of-job; Give and treat water gauge 12 water-fillings; Close total water inlet air valve 15, nominal flow rate solenoid valve 81, boundary flow solenoid valve 82, minimum flow solenoid valve 83 and voltage-withstand test air valve 18 behind the certain hour; Open automatic voltage-withstand test mechanism 7, transmit numerical value to control system 5, when force value reaches setting value (operation interface demonstration examination value) by pressure transducer; Automatically close the voltage-withstand test program; Keep pressurized state to detect the withstand voltage properties of treating water gauge, the pressure transducer feedback pipeline pressure signal that installs additional is given Control Software, calculates value of pressure loss.Always opening after 3 minutes, water inlet air valve 15, voltage-withstand test air valve 16, nominal flow rate solenoid valve 81, boundary flow solenoid valve 82, minimum flow solenoid valve 83 carry out draining; Close total water inlet air valve 15, nominal flow rate solenoid valve 81, boundary flow solenoid valve 82, minimum flow solenoid valve 83 behind the certain hour, finish automatic voltage-withstand test work;
Three, nominal flow rate detects: total water inlet air valve 15, nominal flow rate solenoid valve 81 are opened in control system 5 controls behind the voltage-withstand test end-of-job automatically; 2 work of flow counting mechanism; Light pulse sensor 28 is done the contraposition adjustment slightly, and current get into nominal flow rate Work container 32-1, when water consumption reaches setting value; Nominal flow rate electronic-weighing equipment 33-1 feeds back signal to control system 5; Close nominal flow rate solenoid valve 81, through the actual temperature value of temperature sensor 9 feedback test waters, carry out the water-mass density finishing on backstage when the actual metered value of control system 5 extraction nominal flow rate electronic-weighing equipment 33-1 and light pulse sensor 28 count values are carried out data processing; Draw final detection result (operation interface shows the examination value); Open the water in the nominal flow rate Work container draining valve 35-1 emptying nominal flow rate Work container 32-1, close nominal flow rate Work container draining valve 35-1, finish nominal flow rate and detect;
Four, boundary flow detection: automatically the nominal flow rate testing finishes 5 controls of back control system and opens total water inlet air valve 15, boundary flow solenoid valve 82; Current get into boundary/minimum flow Work container 32-2; When water consumption reaches setting value; Boundary/minimum flow electronic-weighing equipment 33-2 feeds back signal to control system 5; Close boundary flow solenoid valve 82, through the actual temperature value of temperature sensor 9 feedback test waters, carry out the water-mass density finishing on backstage when the actual metered value of control system 5 extraction boundary/minimum flow electronic-weighing equipment 33-2 and light pulse sensor 28 count values are carried out data processing; Draw final detection result (operation interface shows the examination value); Open the water in boundary/minimum flow Work container draining valve 35-2 emptying boundary/minimum flow Work container 32-2, close boundary/minimum flow Work container draining valve 35-2, finish the boundary flow detection;
Five, minimum flow detects: total water inlet air valve 15, minimum flow solenoid valve 83 are opened in control system 5 controls behind the flow detection of demarcating the automatically end-of-job; Current get into boundary/minimum flow Work container 32-2; When water consumption reaches setting value; Boundary/minimum flow electronic-weighing equipment 33-2 feeds back signal to control system 5; Close minimum flow solenoid valve 83, through the actual temperature value of temperature sensor 9 feedback test waters, carry out the water-mass density finishing on backstage when the actual metered value of control system 5 extraction boundary/minimum flow electronic-weighing equipment 33-2 and light pulse sensor 28 count values are carried out data processing; Draw final detection result (operation interface shows the examination value); Open the water in boundary/minimum flow Work container draining valve 35-2 emptying boundary/minimum flow Work container 32-2, close boundary/minimum flow Work container draining valve 35-2, finish minimum flow and detect;
Six, after minimum flow detected and finishes, control system 5 generated all automatically and detects data report, shows at operation interface, is stored in the programmable data storehouse, can check printing at any time; All air valve solenoid valves are got back to virgin state, prepare to carry out water meter calibration next time.
Above specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, the above specific embodiment that is merely the utility model that it should be understood that; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (9)
1. a water meter verification calibrating installation is characterized in that: comprise water meter calibration fundamental mechanism (1), flow counting mechanism (2), metering mechanism (3), pipeline (4) and control system (5); Said water meter calibration fundamental mechanism (1) comprises water source device, treats the test pipeline section that water gauge (12) is composed in series at interval by more piece test straight length (11) and polylith that the test pipeline section is arranged on the calibration table top (13); Treat the corresponding flow counting mechanism (2) of water gauge (12) for said every; Said metering mechanism (3) comprises flowmeter (31), Work container (32) and electronic-weighing equipment (33); The tail end of said test pipeline section will be tested water through pipeline (4) and introduce flowmeter (31) and Work container (32) successively; It is main Single-chip Controlling mechanism with the embedded system perhaps that said control system (5) adopts computer remote control to combine the industrial automation mechanism of on-the-spot PLC control, and control system (5) is electrically connected with the electronic-weighing equipment (33) of flow counting mechanism (2), metering mechanism (3); Said Work container (32) comprises not isometric nominal flow rate Work container (32-1) and boundary/minimum flow Work container (32-2); Said electronic-weighing equipment (33) comprises nominal flow rate electronic-weighing equipment (33-1) different ranges, that be arranged at nominal flow rate Work container (32-1) bottom and the boundary/minimum flow electronic-weighing equipment (33-2) that is arranged at bottom boundary/minimum flow Work container (32-2).
2. a kind of water meter verification calibrating installation according to claim 1 is characterized in that: also comprise the automatic vent mechanism (6) by control system (5) control; Said automatic vent mechanism (6) comprise be successively set on test the pipeline (4) that the pipeline section tail end is communicated with on vacuumize solenoid valve (61), vacuum control check valve (62), vacuum water filter (63) and vacuum pump (64).
3. a kind of water meter verification calibrating installation according to claim 1 is characterized in that: also comprise the automatic resistance test mechanism (7) by control system (5) control; Said automatic resistance test mechanism (7) comprises pressure transducer, pressure solenoid valve and supercharge pump; Said pressure solenoid valve and pressure transducer be arranged on test the pipeline (4) that the pipeline section head end is communicated with on; Said supercharge pump be arranged on test the pipeline (4) that the pipeline section head end is communicated with on.
4. a kind of water meter verification calibrating installation according to claim 1, it is characterized in that: said flow counting mechanism (2) is the photo-impulses counting mechanism of waterproof; Said calibration table top (13) is provided with the flow counting institutional adjustment track (13-1) parallel with testing pipeline section; Said flow counting mechanism (2) comprises sliding bottom (21), base fixator (22), actuator (23), angle controller (24), angle stop (25), metal connector (26), horizontal level micro actuator (27), light pulse sensor (28); Said sliding bottom (21) is slidingly connected with flow counting institutional adjustment track (13-1); Said base fixator (22) is arranged on the sliding bottom (21); Actuator is provided with the angular turn device in (23), angular turn device fixed angle controller (24); Said angle controller (24) is arranged on the actuator (23), and is rotationally connected with it; Said angle stop (25) is fixed on the actuator (23); Said metal connector (26) two ends are fixedly connected with angle controller (24) with horizontal level micro actuator (27) respectively; Said light pulse sensor (28) is fixed on the end of horizontal level micro actuator (27), and is electrically connected with control system (5).
5. a kind of water meter verification calibrating installation according to claim 4 is characterized in that: also comprise and measure solenoid valve (8); Said measurement solenoid valve (8) comprises nominal flow rate solenoid valve (81), boundary flow solenoid valve (82) and minimum flow solenoid valve (83); Said flowmeter (31) is a spinner-type flowmeter, comprises and each self-corresponding nominal flow rate meter (31-3) of measurement solenoid valve (8), boundary flowmeter (31-2) and minimum flow meter (31-1); Pipeline (4) is divided into three road branch roads at test pipeline section tail end; Said nominal flow rate solenoid valve (81) is separately positioned on aforementioned three road branch roads with minimum flow meter (31-1) with boundary flowmeter (31-2) and minimum flow solenoid valve (83) with nominal flow rate meter (31-3), boundary flow solenoid valve (82); The water side of nominal flow rate meter (31-3) is introduced nominal flow rate Work container (32-1) through pipeline (4) with water, and the water side of boundary flowmeter (31-2) and minimum flow meter (31-1) is introduced boundary/minimum flow Work container (32-2) through pipeline (4) with water.
6. a kind of water meter verification calibrating installation according to claim 5 is characterized in that: also comprise the temperature sensor (9) that is electrically connected with control system (5); On said temperature sensor (9) and the pipeline (4) that test pipeline section head end is communicated with.
7. a kind of water meter verification calibrating installation according to claim 1 is characterized in that: said water meter calibration fundamental mechanism (1) also comprises total water inlet air valve (15) and voltage-withstand test air valve (16); Said water source device is standard water source apparatus (14); Said pipeline (4) is with standard water source apparatus (14), test straight length (11) and treat that water gauge (12) is communicated with successively; Said total water inlet air valve (15) and voltage-withstand test air valve (16) be by control system (5) control, be separately positioned on test that pipeline (4) that the pipeline section head end is communicated with is gone up and with test the pipeline (4) that the pipeline section tail end is communicated with on; Said metering mechanism (3) also comprises Work container draining valve (35); Said Work container draining valve (35) comprises nominal flow rate Work container draining valve (35-1) and boundary/minimum flow Work container draining valve (35-2), is separately positioned on nominal flow rate Work container (32-1) and boundary/minimum flow Work container (32-2) and the pipeline (4) that standard water source apparatus (14) is communicated with.
8. according to the described a kind of water meter verification calibrating installation of one of claim 4 to 7, it is characterized in that: said test pipeline section has N row, and N is a natural number; Said every row tests a pipeline section common corresponding automatic vent mechanism (6) of corresponding respectively or every adjacent two rows mechanism to be checked and an automatic resistance test mechanism (7).
9. a kind of water meter verification calibrating installation according to claim 8 is characterized in that: said water meter verification calibrating installation carries out communication through Ethernet and remote control center (10); Said remote control center (10) comprises monitor control mechanism (101) and data-carrier store (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120534283XU CN202433063U (en) | 2011-12-19 | 2011-12-19 | Device for verifying and calibrating water meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120534283XU CN202433063U (en) | 2011-12-19 | 2011-12-19 | Device for verifying and calibrating water meter |
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| CN202433063U true CN202433063U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120534283XU Expired - Lifetime CN202433063U (en) | 2011-12-19 | 2011-12-19 | Device for verifying and calibrating water meter |
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| CN (1) | CN202433063U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175588A (en) * | 2011-12-20 | 2013-06-26 | 江苏远传智能科技有限公司 | Full-automatic series verification calibrating device with pressure-resistant water meter |
| CN103674190A (en) * | 2013-12-16 | 2014-03-26 | 聊城市计量测试所 | Device and method for calibrating LNG adding machine calibrating device with mass method |
| CN104501916A (en) * | 2014-12-08 | 2015-04-08 | 西尼尔(南京)过程控制有限公司 | Liquid calibration system and calibration method thereof |
| CN105181087A (en) * | 2015-08-31 | 2015-12-23 | 苏州东剑智能科技有限公司 | Ultrasonic water meter metrological characteristics detection device and detection method thereof |
| CN105865589A (en) * | 2016-06-28 | 2016-08-17 | 宁波东海仪表水道有限公司 | Intelligent full-flow-point full-automatic water meter calibration apparatus |
| CN105953870A (en) * | 2016-07-18 | 2016-09-21 | 苏州北通智能科技有限公司 | Automatic water meter test board |
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| CN114166316A (en) * | 2021-11-27 | 2022-03-11 | 湖南常德牌水表制造有限公司 | Pressure resistance detection device for water meter production |
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- 2011-12-19 CN CN201120534283XU patent/CN202433063U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103175588A (en) * | 2011-12-20 | 2013-06-26 | 江苏远传智能科技有限公司 | Full-automatic series verification calibrating device with pressure-resistant water meter |
| CN103674190A (en) * | 2013-12-16 | 2014-03-26 | 聊城市计量测试所 | Device and method for calibrating LNG adding machine calibrating device with mass method |
| CN104501916A (en) * | 2014-12-08 | 2015-04-08 | 西尼尔(南京)过程控制有限公司 | Liquid calibration system and calibration method thereof |
| CN105181087A (en) * | 2015-08-31 | 2015-12-23 | 苏州东剑智能科技有限公司 | Ultrasonic water meter metrological characteristics detection device and detection method thereof |
| CN105865589A (en) * | 2016-06-28 | 2016-08-17 | 宁波东海仪表水道有限公司 | Intelligent full-flow-point full-automatic water meter calibration apparatus |
| CN105865589B (en) * | 2016-06-28 | 2019-02-12 | 宁波东海仪表水道有限公司 | Intelligent full flow point full-automatic water meter calibration equipment |
| CN105953870A (en) * | 2016-07-18 | 2016-09-21 | 苏州北通智能科技有限公司 | Automatic water meter test board |
| CN112179423A (en) * | 2020-09-30 | 2021-01-05 | 湖南常德牌水表制造有限公司 | High-precision bidirectional metering intelligent water meter |
| CN112179459A (en) * | 2020-09-30 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Water meter load detection device for simulating water meter use environment |
| 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 |
| CN114166316A (en) * | 2021-11-27 | 2022-03-11 | 湖南常德牌水表制造有限公司 | Pressure resistance detection device for water meter production |
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