CN104482994B - A kind of mass method/method of standard table tiny flow quantity water flow standard apparatus - Google Patents
A kind of mass method/method of standard table tiny flow quantity water flow standard apparatus Download PDFInfo
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- CN104482994B CN104482994B CN201410686590.8A CN201410686590A CN104482994B CN 104482994 B CN104482994 B CN 104482994B CN 201410686590 A CN201410686590 A CN 201410686590A CN 104482994 B CN104482994 B CN 104482994B
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Abstract
The present invention relates to mass method/method of standard table tiny flow quantity water flow standard apparatus.The lower end of vacuum tank is connected by water pump including storage tank, elevated tank connects vacuum tank, vacuum tank and elevated tank are connected to before the tested table of horizontal tested flowmeter placement pipeline on header by electric switching valve respectively, header parallel connection two-way horizontal type telescopic device before tested table, the tested flowmeter of different bores is installed by horizontal type telescopic device, two-way horizontal type telescopic device is converged in before standard scale on header, the outlet of header is set side by side with the standard scale of the different bores in three tunnels before standard scale, three road standard scales are connected to after standard scale on header, the vertical tested flowmeter of two-way is connected by header after standard scale and places pipeline, the vertical tested flowmeter of two-way is placed on pipeline by vertical expansion bend for installing tested flowmeter, the end that the vertical tested flowmeter of two-way places pipeline connects the steering gear for being set side by side with the different bores in three tunnels, one delivery port of steering gear is corresponding with weighing container.
Description
Technical field
The invention belongs to fluid flowmeter calibrating field, more particularly to a kind of mass method/method of standard table tiny flow quantity current
Measure standard set-up.
Background technology
The basic composition of existing water flow standard apparatus have water circulation system (pond, water pump, pressurizing vessel or water tower),
Gas-removing filter, experiment pipeline, expansion bend, standard scale or quality weighing system, commutator, start-up and shut-down control equipment and calculating unit
Into.Tested flowmeter is attached on device on request, starts said system, water flow path is detected flowmeter and flow working stamndard
(electronic scale or standard scale), simultaneously operating is detected flowmeter and flow working stamndard, compares both output flow value, water circulations
The stability of system, the degree of accuracy of commutator, so that it is determined that the accuracy of measuring and repeatability of tested flowmeter.Complete to tested
The calibrating of flowmeter.But there is problem in the accuracy of measuring and repeatability in existing water flow standard apparatus.
The content of the invention
For in place of above shortcomings in the prior art, it is an object of the invention to provide water circulation system it is stable with
And the mass method that the degree of accuracy is high and anti-interference degree is high of flow working stamndard/method of standard table tiny flow quantity water flow standard dress
Put.
A kind of mass method/method of standard table tiny flow quantity water flow standard apparatus, the device includes storage tank, vacuum tank, height
Position water tank, horizontal tested flowmeter place pipeline, and vertical tested flowmeter places pipeline, wherein, storage tank is connected by a water pump
It is connected on the lower end of vacuum tank, elevated tank to be arranged on above tested flowmeter placement pipeline at 4~6m, the water inlet pipe of elevated tank
Vacuum tank is connected by electric switching valve, the outlet pipe of vacuum tank and the outlet pipe of elevated tank pass through electric switching valve respectively
It is connected to before the tested table of horizontal tested flowmeter placement pipeline on header, is detected header parallel connection two-way horizontal type telescopic before table
Device, the tested flowmeter of different bores is installed by horizontal type telescopic device, and two-way horizontal type telescopic device is converged by manual modulation valve respectively
Gather before standard scale on header, the outlet of header is set side by side with the standard scale of the different bores in three tunnels, three tunnel standards before standard scale
The delivery port of table is connected to after standard scale on header, and connecting the vertical tested flowmeter of two-way by header after standard scale places pipe
Road, the vertical tested flowmeter of two-way is placed vertical tested for installing tested flowmeter, two-way by vertical expansion bend on pipeline
The outlet that the end of flowmeter placement pipeline is connected with header before header before an electronic scale, electronic scale is set side by side with three tunnels difference
Electric switching valve is provided with before the steering gear of bore, steering gear and electronic scale between header, a delivery port of steering gear is with weighing
Container is corresponding, and weighing container is arranged on electronic scale.
Further, electronic scale periphery sets windproof outer cover, and weighing container is designed to liquidproof Steaming structure.
Further, the bore of three steering gears is respectively 4mm, 10mm and 15mm.
Further, the bore of three road standard scales is 2mm, 10mm, 15mm respectively.
Further, water pump controls rotating speed by a frequency changer circuit.
Further, the electric switching valve in device is controlled by computer control system.
Further, steering gear include water inlet short tube, 90 ° of tubes, needle-based nozzle, photoimpact signal converter and
Mini cylinder, the water inlet short tube is flexibly connected by flange bearing with the tube of same diameter, 90 ° of tube other end connecting needles
Formula nozzle, water (flow) direction right angle is changed, and steering gear is connected on photoimpact signal converter and runners, runners by a flange
Mini cylinder is set, and the output shaft of mini cylinder is hinged by jointing and the connecting plate that is fixed on tube, on 90 ° of tubes
Photoelectricity baffle plate is additionally provided with, by rotation of the photoelectricity baffle plate in photoimpact signal converter, it is determined that completing once to commutate.
Compared with prior art, beneficial effect is the present invention：
1st, elevated tank is originally used in the present invention, in the case of low discharge, it is to avoid independent use vacuum tank
The current caused are unstable, the problem of swimming occur.
2nd, using the present invention, different paths can be selected so that detection realizes that multi-path is more by controlling electric switching valve
The measurement of model flowmeter, and the degree of accuracy of the stability and flow working stamndard of water circulation system and anti-interference degree obtain
To raising.
3rd, commutator relative standard uncertainty is better than 0.025%, and the ingenious part of structure is that employing evidence has water conservancy diversion
Effect, and in the tube and needle-based nozzle below of water inlet short tube same diameter.Prevent water from being remained in commutator, energy
Rapid agile completion commutation, so as to be effectively guaranteed the relative standard uncertainty of commutator.Another feature of structure is,
It is simple in construction, compact, it is easily installed.
4th, the confirmation that three groups of experiments carry out effect has been done in the present invention：
A, with 50L vacuum tanks coordinate DN15 commutators (bore is 15mm), calibrating flow in 1~16.67L/min, calibrating
Time is 0.5~10 point, and its device discharge stability is better than 0.1%；
B, with 50L vacuum tanks coordinate DN10 commutators (bore is 10mm), calibrating flow in 0.0083~0.1L/min, inspection
Fix time as 1~12 point.Its device discharge stability is better than 0.1%；
C, the 20L elevated tanks cooperation pneumatic commutator of DN2 oscillating nozzle formulas of being connected with 50L vacuum tanks, calibrating flow exist
0.16~0.0016L/min, calibrating time are 1~12 point.Its its device discharge stability is better than 0.05%；
The precision of voltage regulation of vacuum tank is generally 0.1%, and the precision of voltage regulation of elevated tank typically also can reach 0.05%, with steady
The pressurizing vessel that pressure precision is generally 0.1% is one-level source of stable pressure, and repressurization precision is generally 0.05% elevated tank for two grades
Voltage stabilizing, can improve the overall precision of voltage regulation.
Brief description of the drawings
Fig. 1 is apparatus structure simplified schematic diagram provided in an embodiment of the present invention；
Fig. 2 is apparatus structure schematic front view provided in an embodiment of the present invention；
Fig. 3 is apparatus structure diagrammatic top view provided in an embodiment of the present invention；
Fig. 4 is the structural representation of device commutator provided in an embodiment of the present invention；
Wherein, 1 it is storage tank, 2 be switch valve, 3 be filter, 4 be water pump, 5 be check-valves, 6 is electronic scale bracket, 7
For vacuum tank, 8 be elevated tank, 9 be electric switching valve, 10 be tested flowmeter, 11 be horizontal type telescopic device, 12 be standard scale,
13 it is manual modulation valve, 14 be vertical expansion bend, 15 be commutator, 16 be weighing container, 17 be articulation, 18 is expansion bend branch
Frame, 19 be relief tube, 20 be flexible coupling, 21 be outlet pipe, 22 be picked up header before table, 23 be interchangeable straight length, 24 before table
For interchangeable flange, 25 be header before standard scale, 26 be header after standard scale, 27 be header before electronic scale, 201 be water inlet short tube,
202 it is circlip, 203 be tube support set, 204 be photoimpact signal converter, 205 be photoelectricity baffle plate, 206 is 90 °
Tube, 207 be connecting plate, 208 needle-based nozzles, 209 be runners, 210 cylinder supports seat, 211 be mini cylinder, 212 be company
Knock-off joint, 213 be locking head pedestal, 214 be bearing pin.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment
As shown in Figures 1 to 3, a kind of mass method/method of standard table tiny flow quantity water flow standard apparatus, the device includes water storage
Case 1, vacuum tank 7, elevated tank 8, horizontal tested flowmeter place pipeline, and vertical tested flowmeter places pipeline, wherein, water storage
The delivery port of case 1 connects a water pump 4 by switch valve 2 and filter 3, and water pump junction is used around property joint 20, and water pump 4 leads to
Cross check-valves 5 and be connected to the lower end of vacuum tank 7, vacuum tank 7 by a relief tube 19 and storage tank formation loop, relief tube 19 is set
Electric switching valve 9 is put, elevated tank 8 is arranged on tested flowmeter and placed above pipeline at 5m, and the water inlet pipe of elevated tank 8 passes through
One electric switching valve connects vacuum tank 7, and upper water is carried out by vacuum tank 7, the outlet pipe 21 of vacuum tank 7 and elevated tank 8
Outlet pipe is connected to before the tested table of horizontal tested flowmeter placement pipeline on header 22 by electric switching valve respectively, passes through quilt
Header 22 is divided into two-way before inspection table, and two line structures are identical, per all being controlled respectively by an electric switching valve all the way, to be all the way
Example, the other end for being first connected with interchangeable straight length 23 before interchangeable straight length 23, table before table is connected with interchangeable flange 24, and one horizontal stretches
The telescopic end of contracting device 11, which is provided between interchangeable flange, two interchangeable flanges, installs tested flowmeter 10, is detected going out for flowmeter 10
Header 25 before connection standard scale, is divided into three tunnels by header before standard scale 25 after mouth of a river connection electric switching valve, per in all the way
Standard scale 12 is connected by electric switching valve.In the present embodiment, the bore of three road standard scales is 2mm, 10mm, 15mm respectively, is expired
The measurement of flowmeter between sufficient model DN2~DN10.
Three road standard scales 12 connect header 26 after header 26 after standard scale, standard scale by manual modulation valve 13 respectively and connected
Two-way vertical tested flowmeter arranged side by side places pipeline, and the vertical tested flowmeter of two-way is placed connects different bores respectively on pipeline
Tested flowmeter 10, tested flowmeter 10 fixed by pneumatic vertical expansion bend 14, and pneumatic vertical expansion bend 14, which is arranged on, to be stretched
On contracting device support 18, the rear end that two-way vertical tested flowmeter arranged side by side places pipeline connects header 27, electronic scale before electronic scale
Offered on preceding header 27 and electric switching valve is set respectively on three way outlets, three way outlets, passed through respectively by electric switching valve
Articulation 17 and the steering gear that the different bores corresponding from tested flowmeter are connected by articulation 28 and pvc flexible pipes 17
15, the corresponding electronic scale 16 of the correspondence of delivery port all the way of the steering gear 15 of different bores, another road delivery port is directed at storage tank 1,.
The delivery port diameter of three steering gears 15 is respectively 4mm, 10mm and 15mm.
Water pump controls rotating speed by frequency changer circuit.The switch of all electric switching valves in device passes through computer control
System is controlled.
As shown in figure 4, steering gear includes water inlet short tube 201,90 ° of tubes 206, needle-based nozzle 208, photoimpact signals
Converter 204 and mini cylinder 211, one end for short tube 201 of intaking connect loose joint by locking head pedestal 213, tight head nut
Head pvc flexible pipes, the other end of water inlet short tube 201 is flexibly connected by flange and circlip 202 with 90 ° of tubes 206,90 °
The other end connecting needle formula nozzle 208 of tube 206, water (flow) direction right angle is changed, steering gear passes through flange connection symmetrical above and below
Photoimpact signal converter 204 and runners 209, one end of runners 209 are set on cylinder supports seat 210, cylinder supports seat 210
Mini cylinder 211 is set, and the output shaft of mini cylinder 211 passes through jointing 212 and the connecting plate being fixed on 90 ° of tubes
207 are hinged by bearing pin 214, by mini cylinder 211, drive connecting plate 207, make the rotation of commutator needle-based nozzle 208 will
Current convert certain angle discharge.Photoelectricity baffle plate 205 is additionally provided with 90 ° of tubes 206, in commutator needle-based nozzle 208
Photoimpact signal converter 204 is blocked by photoelectricity baffle plate 205 when turning to centre position, send pulse signal to PLC with
It is determined that completing once to commutate.Mini cylinder 211 is, using compressed air as power, to pass through 25 electric change valves (24V is automatically controlled)
Control is elastic.
The course of work in the present embodiment is：The water in storage tank 1 is sucked in vacuum tank 7 by water pump 4 (wherein flexible
Joint 20 is used for water pump damping.Check-valves is protection water pump use) again by outlet pipe 21, into picked up can before header before table, table
Change straight length, interchangeable flange and open electric switching valve warp by " tested flowmeter " horizontal type telescopic device (clamping is detected flowmeter) again
Header is to standard scale before 9 standard scales；Adjust manual modulation valve regulation uninterrupted.Again to remittance before header, electronic scale after standard scale
Pipe, pvc flexible pipes to commutator.Make commutator action will into weighing container 16 to set volume (signal gathered by PLC)
Water flows back to storage tank 11 by a point bucket；Tested flowmeter volume is gathered simultaneously, is discharged into electronic scale weighing in weighing container 16
The weight of water measures the density of water again, is converted into volume and tested flowmeter volumetric ratio compared with passing through software and calculate tested flowmeter
The degree of accuracy, complete once calibrating operation, electronic scale be arranged on storage tank electronic scale bracket 6 on.
In the present embodiment, can be detected for the flowmeter of different model bore, detected flowmeter can be DN10,
DN8, DN6, DN4 and DN2, when needing horizontal detection, are connected using pipeline on the pneumatic vertical expansion bend of two-way, work as needs
During vertical check, connected on two-way horizontal type telescopic device using pipeline, in detection, by controlling electrically operated valve to realize to path
Selection.
For example, it is 10mm to be detected flowmeter bore, is detected, now, adopted on two-way horizontal type telescopic device using vertical
Connected with pipeline, by controlling electric switching valve, according to the difference of calibrating flow, change different patterns, individually using voltage stabilizing
Tank or elevated tank, or the form combined using vacuum tank or elevated tank, and motor switch is controlled according to the requirement of flow
The progress of the road standard scales of Fa Dui tri- and selected steering gear is selected, and three groups of experiments have been done in the present embodiment and have carried out effect
Contrast：
A, with 50L vacuum tanks coordinate DN15 commutators (bore is 15mm), calibrating flow in 1~16.67L/min, calibrating
Time is 0.5~10 point, and its device discharge stability is better than 0.1%；
B, with 50L vacuum tanks coordinate DN10 commutators (bore is 10mm), calibrating flow in 0.0083~0.1L/min, inspection
Fix time as 1~12 point.Its device discharge stability is better than 0.1%；
C, the 20L elevated tanks cooperation pneumatic commutator of DN2 oscillating nozzle formulas of being connected with 50L vacuum tanks, calibrating flow exist
0.16~0.0016L/min, calibrating time are 1~12 point.Its device discharge stability is better than 0.05%；
The precision of voltage regulation of vacuum tank is generally 0.1%, and the precision of voltage regulation of elevated tank typically also can reach 0.05%, with steady
The pressurizing vessel that pressure precision is generally 0.1% is one-level source of stable pressure, and repressurization precision is generally 0.05% elevated tank for two grades
Voltage stabilizing, can improve the overall precision of voltage regulation.
Its commutator relative standard uncertainty is better than 0.025%, and it mainly intakes short tube, tube and commutator syringe needle
Formula nozzle is constituted.Job order is that current are flowed into by water inlet short tube, is flowed out through tube from needle-based nozzle, then is held through being located to weigh
Water knockout drum above device, realizes commutation, is weighed into corresponding weighing container.
The ingenious part of this structure, is to employ according to there is a guide functions, and in water inlet short tube same diameter tube and
Needle-based nozzle below.Prevent water from being remained in commutator, the rapid agile completion commutation of energy, so as to effectively ensure
The relative standard uncertainty of commutator.
Another feature of this structure is, simple in construction, compact, is easily installed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. a kind of mass method/method of standard table tiny flow quantity water flow standard apparatus, it is characterised in that the device include storage tank,
Vacuum tank, elevated tank, horizontal tested flowmeter place pipeline, and vertical tested flowmeter places pipeline, wherein, storage tank passes through
One water pump is connected to the lower end of vacuum tank, elevated tank and is arranged on above tested flowmeter placement pipeline at 4~6m, elevated tank
Water inlet pipe by electric switching valve connect vacuum tank, the outlet pipe of vacuum tank and the outlet pipe of elevated tank pass through electricity respectively
Dynamic switch valve is connected to before the tested table of horizontal tested flowmeter placement pipeline on header, is detected header parallel connection two-way before table
Horizontal type telescopic device, the tested flowmeter of different bores is installed by horizontal type telescopic device, two-way horizontal type telescopic device is respectively by manual
Regulating valve is converged in before standard scale on header, and the outlet of header is set side by side with the standard scale of the different bores in three tunnels before standard scale,
The delivery port of three road standard scales is connected to after standard scale on header, and the vertical tested flowmeter of two-way is connected by header after standard scale
Pipeline is placed, the vertical tested flowmeter of two-way is placed vertical for installing tested flowmeter, two-way by vertical expansion bend on pipeline
The outlet that the end that the tested flowmeter of formula places pipeline is connected with header before header before an electronic scale, electronic scale is set side by side with three
The steering gear of road difference bore, is provided with electric switching valve, a delivery port of steering gear between header before steering gear and electronic scale
Corresponding with weighing container, weighing container is arranged on electronic scale.
2. according to the mass method described in claim 1/method of standard table tiny flow quantity water flow standard apparatus, it is characterised in that electricity
Sub- scale periphery sets windproof outer cover, and weighing container is designed to liquidproof Steaming structure.
3. according to the mass method described in claim 1/method of standard table tiny flow quantity water flow standard apparatus, it is characterised in that three
The bore of individual steering gear is respectively 4mm, 10mm and 15mm.
4. according to the mass method described in claim 1/method of standard table tiny flow quantity water flow standard apparatus, it is characterised in that three
The bore of road standard scale is 2mm, 10mm, 15mm respectively.
5. according to the mass method described in claim 1/method of standard table tiny flow quantity water flow standard apparatus, it is characterised in that water
Pump controls rotating speed by a frequency changer circuit.
6. according to the mass method described in claim 1/method of standard table tiny flow quantity water flow standard apparatus, it is characterised in that dress
Electric switching valve in putting is controlled by computer control system.
7. according to the mass method described in claim 1/method of standard table tiny flow quantity water flow standard apparatus, it is characterised in that institute
Stating steering gear includes water inlet short tube, 90 ° of tubes, needle-based nozzle, photoimpact signal converter and mini cylinder, it is described enter
Water short tube is flexibly connected by flange bearing with 90 ° of tubes of same diameter, 90 ° of tube other end connecting needle formula nozzles, by water
The conversion of direction right angle is flowed, steering gear is connected by a flange and sets mini gas on photoimpact signal converter and runners, runners
Cylinder, the output shaft of mini cylinder is hinged by jointing and the connecting plate that is fixed on 90 ° of tubes, is also set up on 90 ° of tubes
There is photoelectricity baffle plate, by rotation of the photoelectricity baffle plate in photoimpact signal converter, it is determined that completing once to commutate.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1654667A1 (en) * | 1988-12-05 | 1991-06-07 | Предприятие П/Я Р-6564 | Model flowmetering rig |
| CN201104247Y (en) * | 2007-04-24 | 2008-08-20 | 胜利油田胜利工程设计咨询有限责任公司 | Skid-mounted gas pressure regulating and metering installation |
| CN101446505A (en) * | 2008-12-16 | 2009-06-03 | 深圳市建恒测控股份有限公司 | System for calibrating ultrasonic flowmeter by time difference method |
| CN101539445A (en) * | 2009-04-30 | 2009-09-23 | 泉州市闽南五金机械设备制造有限公司 | Method and device for testing flux of water heating product |
| CN101556181A (en) * | 2009-05-20 | 2009-10-14 | 西安东风机电有限公司 | Composite static start-stop method mass flowmeter calibration system |
| CN201464001U (en) * | 2009-04-03 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Calibrating device of float flowmeter |
| CN102183284A (en) * | 2011-04-14 | 2011-09-14 | 张广忠 | Liquid flow standard calibration device |
| CN202339227U (en) * | 2011-12-16 | 2012-07-18 | 重庆市计量质量检测研究院 | Portable water meter indication error detection device |
| CN202720029U (en) * | 2012-08-09 | 2013-02-06 | 丹东意邦计量仪器仪表有限公司 | Calibrating device of small-bore high-pressure water meter for oil and gas exploitation in oil field |
| CN202974393U (en) * | 2012-10-26 | 2013-06-05 | 浙江省计量科学研究院 | Multi-plunger parallel connection type standard device for liquid micro flow |
| CN203414144U (en) * | 2013-06-09 | 2014-01-29 | 新疆维吾尔自治区计量测试研究院 | Gas flow detection device |
| CN203785749U (en) * | 2014-04-25 | 2014-08-20 | 滨州市计量测试检定所 | Liquid flow device adopting dynamic quality method |
| CN204301821U (en) * | 2014-11-25 | 2015-04-29 | 丹东科泰仪器仪表有限公司 | A kind of mass method/method of standard table tiny flow quantity water flow standard apparatus |
-
2014
- 2014-11-25 CN CN201410686590.8A patent/CN104482994B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1654667A1 (en) * | 1988-12-05 | 1991-06-07 | Предприятие П/Я Р-6564 | Model flowmetering rig |
| CN201104247Y (en) * | 2007-04-24 | 2008-08-20 | 胜利油田胜利工程设计咨询有限责任公司 | Skid-mounted gas pressure regulating and metering installation |
| CN101446505A (en) * | 2008-12-16 | 2009-06-03 | 深圳市建恒测控股份有限公司 | System for calibrating ultrasonic flowmeter by time difference method |
| CN201464001U (en) * | 2009-04-03 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Calibrating device of float flowmeter |
| CN101539445A (en) * | 2009-04-30 | 2009-09-23 | 泉州市闽南五金机械设备制造有限公司 | Method and device for testing flux of water heating product |
| CN101556181A (en) * | 2009-05-20 | 2009-10-14 | 西安东风机电有限公司 | Composite static start-stop method mass flowmeter calibration system |
| CN102183284A (en) * | 2011-04-14 | 2011-09-14 | 张广忠 | Liquid flow standard calibration device |
| CN202339227U (en) * | 2011-12-16 | 2012-07-18 | 重庆市计量质量检测研究院 | Portable water meter indication error detection device |
| CN202720029U (en) * | 2012-08-09 | 2013-02-06 | 丹东意邦计量仪器仪表有限公司 | Calibrating device of small-bore high-pressure water meter for oil and gas exploitation in oil field |
| CN202974393U (en) * | 2012-10-26 | 2013-06-05 | 浙江省计量科学研究院 | Multi-plunger parallel connection type standard device for liquid micro flow |
| CN203414144U (en) * | 2013-06-09 | 2014-01-29 | 新疆维吾尔自治区计量测试研究院 | Gas flow detection device |
| CN203785749U (en) * | 2014-04-25 | 2014-08-20 | 滨州市计量测试检定所 | Liquid flow device adopting dynamic quality method |
| CN204301821U (en) * | 2014-11-25 | 2015-04-29 | 丹东科泰仪器仪表有限公司 | A kind of mass method/method of standard table tiny flow quantity water flow standard apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608788A (en) * | 2019-09-12 | 2019-12-24 | 湖南工业大学 | Automatic detection system and method for flow of viscous liquid |
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| CN104482994A (en) | 2015-04-01 |
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