CN204422030U - Ultrasonic water meter flow verification standard set-up - Google Patents
Ultrasonic water meter flow verification standard set-up Download PDFInfo
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- CN204422030U CN204422030U CN201520073645.8U CN201520073645U CN204422030U CN 204422030 U CN204422030 U CN 204422030U CN 201520073645 U CN201520073645 U CN 201520073645U CN 204422030 U CN204422030 U CN 204422030U
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Abstract
The utility model discloses a kind of ultrasonic water meter flow verification standard set-up, comprise the loop system that constant pressure water supply system (10), standard volume device (40) and ultrasonic water meter monitor station (20) are formed, also comprise the many gears point flow regulating device (30) for regulating system flow.Described many gears point flow regulating device is made up of Venturi nozzle and solenoid valve.Further, adopt annular volume pipe as standard volume device.Ultrasonic water meter flow verification standard set-up of the present utility model can not only realize the effect of many gears calibration ultrasonic water meter, and stability height affects less by environmental change, and measuring accuracy readability reaches 5/10000ths.
Description
Technical field
The utility model relates to a kind of flow verification standard set-up, is specially a kind of ultrasonic water meter flow verification standard set-up.
Background technology
Flow verification standard set-up is the standard testing platform being applied to meter proof and calibration, its accuracy and stability affect the measuring accuracy of the flowmeter of production to a great extent, precision is high, the flow verification standard set-up of good stability not only can provide a reliable technical basis for manufacturer, quality supervision department and measurement technology mechanism, and more long-range target is for China will introduce the measurement standard that intelligent flow meter provides accurate, unified from now on.
In the prior art, in ultrasonic water meter flow calibrating device, usually adopt manual adjustments valve or robotization control valve for regulating the uninterrupted by waiting to examine and determine ultrasonic water meter, to test its metering precision at various flows value.Wherein, manual modulation valve door normally adopts single or multiple throttling valve, its flow regulation process is slow, complicated, flow rate fluctuation is large, poor stability and can not robotization regulating, existing robotization variable valve then adopts close-loop feedback controlling opening of valve, its feedback signal is subject to the interference of environment for use, easily causes the burst of flow to fluctuate.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide a kind of ultrasonic water meter flow verification standard set-up, can realize the object of the precise and stable adjust flux of many gears.
To achieve these goals, the technical solution of the utility model is: a kind of ultrasonic water meter flow verification standard set-up, comprise the loop system that constant pressure water supply system, standard volume device and ultrasonic water meter monitor station are formed, also comprise the many gears point flow regulating device for regulating system flow.
Preferably, described many gears point flow regulating device comprises Venturi nozzle and solenoid valve.
Preferably, described standard volume device is volume tank, and described constant pressure water supply system, ultrasonic water meter monitor station and volume tank successively annular connect, and described many gears point flow regulating device is arranged between ultrasonic water meter monitor station and volume tank.
Preferably, described standard volume device is annular volume pipe, described constant pressure water supply system, annular volume pipe and ultrasonic water meter monitor station successively annular connect, and described many gears point flow regulating device is arranged between ultrasonic water meter monitor station and constant pressure water supply system.
Preferably, described annular volume pipe comprises pneumatic ball valve, Pneumatic three-way ball valve, Pneumatic four-way ball valve, receiving ball tube, fast opening blind, elasticity ball-type displacing device, prover section and detector switch, two water delivering orifices of described Pneumatic four-way ball valve, connect described two receiving ball tubes respectively, another two water delivering orifices of described Pneumatic four-way ball valve are connected with pneumatic ball valve respectively, described detector switch is fixed on described prover section, described receiving ball tube put into by described elasticity ball-type displacing device, and described receiving ball tube is connected with described prover section.
Preferably, described ultrasonic water meter monitor station comprises pneumatic ball valve, air cylinder group, water meter fixture, ultrasonic water meter and guide rail, described pneumatic ball valve is connected with described air cylinder group, described pneumatic ball valve is connected with described annular volume pipe, described cylinder is for promoting described water meter fixture, described water meter fixture moves on described guide rail, and described ultrasonic water meter is placed on described water meter fixture, and the described water meter fixture other end is connected to described many gears point flow regulating device by described pneumatic ball valve.
Preferably, described constant pressure water supply system comprises water tank, water pump and buffer tank, and the number of described water pump is 2, and described water tank manually ball valve is connected to described two water pumps respectively, and described two water pumps are connected with described buffer tank after connecting two non-return valve respectively.
Preferably, the model of described two water pumps is specifically determined according to the flow of required measurement.
The beneficial effects of the utility model are:
1) uninterrupted adopting many gears point flow regulating device of Venturi nozzle and solenoid valve composition to substitute traditional valve manually or automatically in ultrasonic water meter standard verification apparatus to come in fixing quantity standard verification apparatus and ultrasonic water meter.The different bores of described Venturi nozzle correspond to different flows, can play firm discharge effect, and solenoid valve can control current break-make when pressure stability.According to the calibrating requirement of ultrasonic water meter, corresponding traffic channel is set, just can realizes the fine adjustment of point flow, more just can realize the superposition of flow by electromagnetic switch valve group, thus many gears are adjusted to required flow point accurately and stably;
2) in ultrasonic water meter standard verification apparatus, adopt annular volume pipe to demarcate ultrasonic water meter, the high measuring accuracy of flow verification standard set-up of the present utility model can not only be ensured, key is: relative to orthobaric volume tank and electronic scale device, prover section in annular volume pipe is through interior processing and polishing, there is corrosion resistant, wear-resisting characteristic, stability height affects less by environmental change, be the preferred caliberating device being applicable to ultrasonic water meter standard verification apparatus.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the perspective view of constant pressure water supply system in Fig. 1;
Fig. 3 is the perspective view of ultrasonic water meter monitor station in Fig. 1;
Fig. 4 is the perspective view of many gears point flow regulating device in Fig. 1;
Fig. 5 is the utility model embodiment 2 structural representation;
Fig. 6 is the perspective view of annular volume pipe in Fig. 5;
Fig. 7 is the partial schematic diagram of four way ball valve four intake-outlets in Fig. 6;
In figure: 10, constant pressure water supply system; 11, water tank; 12, water pump I; 13, water pump II; 14, buffer tank; 15, manual ball valve; 16, non-return valve; 20, ultrasonic water meter monitor station; 21, pneumatic ball valve; 22, air cylinder group; 23, ultrasonic water meter; 24, water meter fixture; 25, SBR16 line slideway; 26, tank base plate; 27, monitor station stake body; 30, many gears point flow regulating device; 31, Venturi nozzle; 32, solenoid valve; 33, many gears point flow regulating device water inlet; 34, many gears point flow regulating device water delivering orifice; 40, standard volume device; 40a, annular volume pipe; 401, volume pipe water inlet; 402, volume pipe water delivering orifice; 411, pneumatic ball valve; 412, pneumatic ball valve; 413, pneumatic ball valve; 42 Pneumatic three-way ball valves; 43, Pneumatic four-way ball valve; 43a, 43b, 43c, 43d are four intake-outlets of Pneumatic four-way ball valve 43; 441, receiving ball tube I; 442, receiving ball tube II; 451, fast opening blind I; 452, fast opening blind II; 46, tensimeter; 47, elasticity ball-type displacing device; 48, detector switch; 49, prover section; 491, bearing; 40b, orthobaric volume tank.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
A kind of ultrasonic water meter flow verification standard set-up, comprises the loop system that constant pressure water supply system 10, ultrasonic water meter monitor station 20 and standard volume device 40 are formed.
Embodiment 1: see Fig. 1, standard volume device 40 is volume tank 40b, and described constant pressure water supply system 10, ultrasonic water meter monitor station 20 are connected to form a water circulation system with orthobaric volume tank 40b successively annular.Described orthobaric volume tank 40b tank body has standard volume scale, and current enter above tank body, and flow out from below and enter in the water tank 11 of constant pressure water supply equipment 10, it is for demarcating ultrasonic water meter.
See Fig. 2, wherein constant pressure water supply system 10 comprises water tank 11, two water pumps 12,13 and buffer tank 14, described water tank 11 manually ball valve 15 is connected to described two water pumps 12,13 respectively, and described two water pumps are connected with described buffer tank 14 after connecting two different non-return valve 16 respectively.Wherein, water tank 11 volume needs enough large, ensures to be full of water in whole closed circulation system pipeline, need the general volume calculating water tank, there is a dividing plate at water delivering orifice 1/4 place in water tank, when the water suction of principal security pump, water can keep current stabilization state, and pump group is multistage vertical type stainless steel water pump, calculates according to pressure of supply water and required water supply flow the model selecting water pump, simultaneously in water outlet place of pump, the non-return valve 16 of stainless steel 304 is housed, prevents flow reversal from flowing, guarantee the uniflux of water.Buffer tank plays the effect of current stabilization, and by calculating, volume is 100L, and buffer tank bosom also needs a dividing plate, can eliminate bubble, and be in current stabilization state when ensureing water outlet, divider height is about 2/3 of buffer tank overall height.
See Fig. 3, described ultrasonic water meter monitor station is by pneumatic ball valve 21, air cylinder group 22, ultrasonic water meter 23, water meter fixture 24, SBR16 line slideway 25; Tank base plate 26 and monitor station stake body 27 form.Water meter fixture 24 is mainly clamped by air cylinder group 22, coupling part, both sides all be quick access device, this conveniently dismantles, and is convenient to change the water meter comprising the different bore such as DN20, DN25, DN32, DN40, DN50 simultaneously.
Key of the present utility model is: see Fig. 1 and Fig. 4, also comprise the many gears point flow regulating device 30 for carrying out flow regulation to the ultrasonic water meter on monitor station in described ultrasonic water meter standard verification apparatus, it is arranged between ultrasonic water meter monitor station 20 and orthobaric volume tank 40b and forms complete water flow circuits.Described many gears point flow regulating device 30 is made up of Venturi nozzle 31 and solenoid valve 32, and its water inlet 33 is connected with ultrasound examination platform 20, and water delivering orifice 34 then directly leads to orthobaric volume tank 40b.The bore of described Venturi nozzle is different, and different bores corresponds to different flows, can play firm discharge effect, and solenoid valve can control current break-make when pressure stability.In many gears point flow regulating device of the present utility model, described Venturi nozzle is divided into several groups, and each Venturi nozzle internal diameter varies in size, be followed successively by: 2mm, 3mm, 4mm, 6mm, 7mm, 9mm, 10mm, 14mm, 15mm, 18mm, when needs some firm discharges time, opens the solenoid valve of corresponding Venturi nozzle, just can realize the effect obtaining accurate flow, and very stable.More convenient, just can be realized the superposition of flow by the break-make of electromagnetic switch valve group, thus many gears are adjusted to required flow point accurately and stably.
Embodiment 2: usually all there is standard volume device, such as, orthobaric volume tank in embodiment 1 or the electronic scale weighing formula water tank for examining and determine ultrasonic water meter in flow standard of perfection device.In order to the measuring accuracy maintaining ultrasonic water meter needs the orthobaric volume tank selecting higher metering, but, the volume tank of high measuring accuracy is very responsive for environmental change, and the deformation of temperature, humidity, buoyancy or tank body all can have influence on the precision of measurement, and electronic scales has above-mentioned defect equally.Therefore, see Fig. 5, in the utility model embodiment 2, annular volume pipe 40a is adopted to replace orthobaric volume tank 40b to carry out flow calibration to ultrasonic water meter, described annular volume pipe 40a is arranged between constant pressure water supply system 10 and ultrasonic water meter monitor station 20, described annular volume pipe 40 comprises pneumatic ball valve I (411), pneumatic ball valve II (412), pneumatic ball valve III (413), Pneumatic three-way ball valve 42, Pneumatic four-way ball valve 43, receiving ball tube I (441), receiving ball tube II (442), fast opening blind I (451), fast opening blind II (452), tensimeter 46, elasticity ball-type displacing device 47, detector switch 48, prover section 49 and bearing 491.Described Pneumatic four-way ball valve 43 has four intake-outlets 43a, 43b, 43c, 43d, wherein, water delivering orifice 43b connects receiving ball tube I, water delivering orifice 43d connects receiving ball tube II, and water delivering orifice 43a is connected with pneumatic ball valve I, 43c is connected with pneumatic ball valve II, described detector switch 48 is fixed on described prover section 49, and described receiving ball tube put into by described elasticity ball-type displacing device 47, and described receiving ball tube is connected with described prover section.
See Fig. 6, described annular volume pipe 40a is the bi-directional folded type volume pipe of ball one valve, its basic principle of operation is: the elastic sphere being called as displacing device 47 with the liquid driven of measuring, and repeatedly replaces liquid that is precalibrated between two detector switches 48 on cylinder volume and known volume accurately.Meanwhile, point out the volume that corresponding ultrasonic water meter measures, calculate the ratio of replaced known volume and ultrasonic water meter flow reading, determine ultrasonic water meter flow correction parameter, in write ultrasonic water meter.
See Fig. 5, Fig. 6 and Fig. 7, annular volume pipe 40a can make the positive and negative two-way flow of the liquid in volume pipe by Pneumatic four-way ball valve 43, thus makes elasticity ball-type displacing device 47 come and go operation, and its positive revesal all can be examined and determine ultrasonic water meter.During calibrating, elastic ball 47 moves in prover section 49, when ball is by first detector switch, detector switch sends startup electric signal, the initial volume value of record ultrasonic water meter, when elastic ball arrives second detector switch, detector switch produces and terminates electric signal, record ultrasonic water meter cessative aspect product value, both numerical difference and the fixed volume of volume pipe between two detector switches form ultrasonic water meter corrected parameter through mathematical model process.
In the present embodiment, the workflow of ultrasonic water meter flow verification standard set-up is: open water pump 12/13, water in water tank 11 will enter buffer tank 14, close pneumatic ball valve 411 and 413, open pneumatic ball valve 412 and Pneumatic three-way ball valve 42, allow current directly by ultrasonic water meter 23, with many gears flow fixed point regulating device 30, then turn back to water tank 11, get rid of the air of monitor station inside.Then pneumatic ball valve 412 is closed, open pneumatic ball valve 411 and 413, current will import and export 43a by four way ball valve, adjustment four way ball valve, current are allowed to import and export 43b/43d by four way ball valve, elastic ball displacing device Engage of standard pipeline section is wherein driven after entering receiving ball tube I (441)/receiving ball tube II (442), current drive elastic ball 47 to flow along the bending direction of prover section, after elastic ball 47 enters receiving ball tube II (442)/receiving ball tube I (441), current import and export 43c by four way ball valve, the ultrasonic water meter 23 on monitor station is led to after entering tee ball valve 42 again, with many gears flow fixed point regulating device 30, then water tank 11 is turned back to.As shown in Figure 6, for elastic ball displacing device 47 from receiving ball tube II (442)s arrive receiving ball tube I (441) flow to schematic diagram.As shown in Figure 7, Pneumatic three-way ball valve 42 plays pressure release effect, and when in volume pipe, pressure is excessive, adjustment Pneumatic three-way ball valve 42 can allow the direct reflow tank of current; And fast opening blind I (451) and fast opening blind II (452) can be opened or close, conveniently pick and place elastic ball displacing device 47; Fast opening blind I (451) and fast opening blind II (452) are equipped with tensimeter 46 respectively, tensimeter 46 can show the pressure of water in volume pipe, if pressure is excessive, just need by Pneumatic three-way ball valve 42 pressure release, detect in order to avoid impact is normal.
Stainless steel pipes is preferably adopted to connect between each device of the present utility model.
The annular volume pipe precision arranged in the utility model is very high, and measuring repeatability and stability are better than 5/10000ths, for demarcating ultrasonic water meter, can ensure the high measuring accuracy of ultrasonic water meter.Adopt annular volume pipe to demarcate ultrasonic water meter, its reason is: 1) annular volume pipe metering precision is high; 2) relative to the very responsive volume tank of the environmental factors such as environment, temperature, pressure, buoyancy or electronic scales, the pipeline of annular volume pipe is through interior processing and polishing, have corrosion resistant, wear-resisting characteristic affects by environmental change less, stability is high, often can use and be unlikely to damage.And for any one standard verification apparatus, long-term running makes its measuring accuracy offset unavoidably, preferred scheme regularly uses the standard volume device of higher measuring accuracy to demarcate it, thus meet the high measuring accuracy demand of calibrating ultrasonic water meter, repeats no more here.
Claims (8)
1. a ultrasonic water meter flow verification standard set-up, comprises the loop system that constant pressure water supply system, standard volume device and ultrasonic water meter monitor station are formed, it is characterized in that: also comprise the many gears point flow regulating device for regulating system flow.
2. a kind of ultrasonic water meter flow verification standard set-up according to claim 1, is characterized in that: described many gears point flow regulating device comprises Venturi nozzle and solenoid valve.
3. a kind of ultrasonic water meter flow verification standard set-up according to claim 2, it is characterized in that: described standard volume device is volume tank, described constant pressure water supply system, ultrasonic water meter monitor station and volume tank successively annular connect, and described many gears point flow regulating device is arranged between ultrasonic water meter monitor station and volume tank.
4. a kind of ultrasonic water meter flow verification standard set-up according to claim 2, it is characterized in that: described standard volume device is annular volume pipe, described constant pressure water supply system, annular volume pipe and ultrasonic water meter monitor station successively annular connect, and described many gears point flow regulating device is arranged between ultrasonic water meter monitor station and constant pressure water supply system.
5. a kind of ultrasonic water meter flow verification standard set-up according to claim 4, it is characterized in that: described annular volume pipe, comprise pneumatic ball valve, Pneumatic three-way ball valve, Pneumatic four-way ball valve, receiving ball tube, fast opening blind, elasticity ball-type displacing device, prover section and detector switch, two water delivering orifices of described Pneumatic four-way ball valve, connect described two receiving ball tubes respectively, another two water delivering orifices of described Pneumatic four-way ball valve are connected with pneumatic ball valve respectively, described detector switch is fixed on described prover section, described receiving ball tube put into by described elasticity ball-type displacing device, described receiving ball tube is connected with described prover section.
6. the ultrasonic water meter flow verification standard set-up according to any one of claim 3 to 5, it is characterized in that: described ultrasonic water meter monitor station comprises pneumatic ball valve, air cylinder group, water meter fixture, ultrasonic water meter and guide rail, described pneumatic ball valve is connected with described air cylinder group, described pneumatic ball valve is connected with described annular volume pipe, described cylinder is for promoting described water meter fixture, described water meter fixture moves on described guide rail, described ultrasonic water meter is placed on described water meter fixture, the described water meter fixture other end is connected to described many gears point flow regulating device by described pneumatic ball valve.
7. the ultrasonic water meter flow verification standard set-up according to any one of claim 3 to 5, it is characterized in that: described constant pressure water supply system comprises water tank, water pump and buffer tank, the number of described water pump is 2, described water tank manually ball valve is connected to described two water pumps respectively, and described two water pumps are connected with described buffer tank after connecting two non-return valve respectively.
8. a kind of ultrasonic water meter flow verification standard set-up according to claim 7, is characterized in that: the model of described two water pumps is specifically determined according to the flow of required measurement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520073645.8U CN204422030U (en) | 2015-02-02 | 2015-02-02 | Ultrasonic water meter flow verification standard set-up |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596620A (en) * | 2015-02-02 | 2015-05-06 | 姜跃炜 | Ultrasonic water meter flow calibration standard device |
| CN105973350A (en) * | 2016-04-28 | 2016-09-28 | 中国核动力研究设计院 | Dynamic response characteristic self-checking device of fluid flowmeter |
| CN114608853A (en) * | 2022-01-24 | 2022-06-10 | 合肥通用机械研究院有限公司 | Maximum flux detection device based on liquid-liquid separation equipment and energy efficiency detection method |
-
2015
- 2015-02-02 CN CN201520073645.8U patent/CN204422030U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596620A (en) * | 2015-02-02 | 2015-05-06 | 姜跃炜 | Ultrasonic water meter flow calibration standard device |
| CN104596620B (en) * | 2015-02-02 | 2018-08-31 | 姜跃炜 | Ultrasonic water meter flow verification standard set-up |
| CN105973350A (en) * | 2016-04-28 | 2016-09-28 | 中国核动力研究设计院 | Dynamic response characteristic self-checking device of fluid flowmeter |
| CN105973350B (en) * | 2016-04-28 | 2019-05-21 | 中国核动力研究设计院 | A kind of fluid flowmeter dynamic response characteristic self-checking unit |
| CN114608853A (en) * | 2022-01-24 | 2022-06-10 | 合肥通用机械研究院有限公司 | Maximum flux detection device based on liquid-liquid separation equipment and energy efficiency detection method |
| CN114608853B (en) * | 2022-01-24 | 2024-04-09 | 合肥通用机械研究院有限公司 | Maximum flux detection device and energy efficiency detection method based on liquid-liquid separation equipment |
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