CN109374092A - High-precision air-sweeping type commutation weighing system for meter proof - Google Patents
High-precision air-sweeping type commutation weighing system for meter proof Download PDFInfo
- Publication number
- CN109374092A CN109374092A CN201811633964.4A CN201811633964A CN109374092A CN 109374092 A CN109374092 A CN 109374092A CN 201811633964 A CN201811633964 A CN 201811633964A CN 109374092 A CN109374092 A CN 109374092A
- Authority
- CN
- China
- Prior art keywords
- inlet pipe
- commutation
- head
- weight box
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005303 weighing Methods 0.000 title claims abstract description 27
- 238000010408 sweeping Methods 0.000 title claims abstract description 15
- 238000007664 blowing Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 abstract description 33
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000003116 impacting effect Effects 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/14—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using a weighing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Supply Of Fluid Materials To The Packaging Location (AREA)
Abstract
The present invention relates to a kind of high-precision air-sweeping type commutation weighing systems for meter proof, oil inlet pipe inner fluid enters in commutation head, the swing angle of oil inlet pipe is controlled by reversing cylinder, to corresponding from commutation different runner, to realize the change in oil liquid circulation path and direction, oil liquid outflow out of commutation head runner disperses along a upper surface for the oily cap of warp point and slides along the medial surface of weight box to weight box, prevent oil liquid from directly impacting the bottom of box, increase system stationarity simultaneously prevents oil liquid from splashing, keep weighing more accurate and protects electronic balance, after oil liquid, the air inlet pipe of gas source connection inflatable body, it is blown by each inflatable mouth of inflatable body into the runner of commutation head, the oil liquid blowout commutation head that will be adhered on the head inner wall that commutates, reduce the unnecessary error of experimental data, it is more quasi- to obtain True experimental result.
Description
Technical field
The present invention relates to the technical field of oil liquid detection equipment, in particular to a kind of high-precision gas for meter proof
Blow formula commutation weighing system.
Background technique
In the verification of flowmeter and the test experience of oil liquid performance indexes, needed in measurement pipeline or equipment
Reversing mechanism is connected, reversing mechanism is used and changes circulation path and the direction of oil liquid to meet the needs of experiment, oil liquid is by changing
It is usually to pass through the gravity of oil liquid itself to flow out out of reversing mechanism, but have portion when oil liquid passes through reversing mechanism when to device
Oil liquid is divided to be detained or be adhered on the inner wall of reversing mechanism, the gravity by itself is difficult to flow out, so bringing to test result
Serious interference seriously has exceeded the range of experimental error, and when oil liquid enters weighing by reversing mechanism, for biggish
When in use, oil inlet quantity is larger for weight box, but in order to which accurate oil inlet pipe of weighing cannot directly be contacted with weight box again, therefore into
The big oil inlet quantity of hydraulic fluid port can generate biggish impact to entire weighing system, seriously affect the stability and weighing of weighing system
Precision is to affect the accuracy of experimental result, while the big oil inlet quantity of oil inlet can also generate oil liquid splashing, same influence
The weighing of oil liquid simultaneously has an impact the precision of experimental result.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of high-precision air-sweeping type commutation weighing system for meter proof
System.
Particular content is as follows: for the high-precision air-sweeping type commutation weighing system of meter proof, which includes blowing
Commutate oil feeding device and the weight box with separator；It is characterized in that:
The air blowing commutation oil feeding device includes the commutation head and inflatable body of fixed plate, reversing cylinder, oil inlet pipe, Y type, institute
The oil inlet pipe stated includes horizontal segment and vertical section, and the free end of oil inlet pipe horizontal segment is horizontally fixed on fixed plate by revolute pair
On, one piece of parallel connecting plate corresponding with vertical section is fixed on the horizontal segment of oil inlet pipe, the reversing cylinder passes through small outstanding
Arm is horizontally fixed on the side of fixed plate, and reversing cylinder and oil inlet pipe are fixed on the same side of fixed plate, and the one of reversing cylinder
End is hinged on connecting plate, the cavity body including sprue and two symmetrical runners that head is Y type that commutate,
Commutating, it is corresponding with the cavity of runner respectively to be divided into the cavity of sprue by vertical clapboard in the cavity of head sprue
Two parts, the sprue of the head that commutates is fixed on the side of fixed plate, the oil inlet pipe vertical section by great cantilever vertically
Free end extend into commutation head from the upper port of commutation head sprue, the port of the free end of oil inlet pipe vertical section is located at perpendicular
The surface of straight baffle；
The inflatable body includes air inlet pipe, the air blowing cranse equipped with inflatable mouth and connecting chamber, the air blowing cranse edge
The sprue of commutation head and the junction of runner are horizontally fixed on the lateral wall of commutation head, and edge is equipped in air blowing cranse and is blown
The connecting chamber of gas cranse head and the tail connection in one week is uniformly provided with several in air blowing cranse and is respectively communicated with commutation head point obliquely
The inflatable mouth of the connecting chamber of the cavity and air blowing cranse of runner, fixed respectively on the symmetrical side of air blowing cranse two one with
The air inlet pipe that connecting chamber is connected；
The weight box with separator includes electronic balance and the fixed weight box of upper part and is fixed in weight box
The separator in portion, the weight box are the cylindrical shape of upper end opening, and the bottom of weight box is fixed on electronic balance by pillar
Weight-bearing surface on, the bottom inside the weight box is set as inverted cone-shaped, in bottom the cone tip part of inverted cone be equipped with one
Be connected to and outwardly directed oil exit pipe inside weight box, equipped with a solenoid valve on the pipeline of oil exit pipe；Point oil
Device includes point oily cap and the supporting leg of umbrella, it is vertically fixed on by the bottom of point oily cap by least three supporting legs
On the rounding conical surface of weight box bottom, point oily axis of cap and the axis collinear of weight box, the one of the commutation head
The lower port of runner extend into weight box and is located at a point surface for oily cap.
Preferably, the pipeline that oil circuit is corresponded on the horizontal segment of the oil inlet pipe and fixed plate another side is connected.
Preferably, the reversing cylinder includes cylinder body and piston rod, and the cylinder body is fixed on by small cantilever level
The free end of the side of fixed plate, the piston rod is hinged on connecting plate.
Preferably, the air inlet pipe is connected with gas source.
Preferably, the bus of point oily cap is the arc-shaped of recess.
Preferably, the bottom interior surface of the weight box is 90 ° by the angle α of the contour line in the section of center line.
Advantageous effects of the invention
The present invention is a kind of high-precision air-sweeping type commutation weighing system for meter proof, and oil inlet pipe inner fluid enters commutation
In head, the swing angle of oil inlet pipe is controlled by reversing cylinder, thus it is corresponding from commutation different runner, to realize
The change in oil liquid circulation path and direction, the oil liquid upper surface dispersion and edge of outflow along the oily cap of warp point out of commutation head runner
The medial surface of weight box slides to weight box, prevents oil liquid from directly impacting the bottom of box, increases system stationarity and prevents oil
Liquid splashes, and keeps weighing more accurate and protects electronic balance, and after oil liquid, gas source connects the air inlet pipe of inflatable body, passes through
Each inflatable mouth of inflatable body is blown into the runner of commutation head, the oil liquid blowout commutation that will be adhered on the head inner wall that commutates
Head reduces the unnecessary error of experimental data, to obtain more accurate experimental result.
Detailed description of the invention
Fig. 1 is the sectional view of the high-precision air-sweeping type commutation weighing system for meter proof；
Fig. 2 is the sectional view of air blowing commutation oil feeding device；
Fig. 3 is the right view of Fig. 2；
Fig. 4 is the cross-sectional view in the direction A-A in Fig. 2；
Fig. 5 is the sectional view of the weight box with separator；
Fig. 6 is the main view of separator；
Fig. 7 is the top view of Fig. 6；
In figure: 2. points of oily caps, 3. supporting legs, 4. weight boxes, the bottom of 5. weight box inverted cone-shapeds, 6. pillars, 7. oil exit pipes, 8.
Electronic balance, 9. solenoid valves, the contour line of 10. points of oily caps recess, the piston rod of 11. air blowing cylinders, 12. air blowing cylinders cylinder
Body, the vertical section of 13. oil inlet pipes, 14. fixed plates, the sprue of 15. commutation heads, 16. air inlet pipe, 17. connecting chambers, 18. are blown
Port, the runner of 19. commutation heads, the pipeline of 20. corresponding oil circuits, 21. connecting plates, 22. small cantilevers, 23. great cantilevers, 24. are blown
Mechanism of qi structure, the horizontal segment of 25. oil inlet pipes, 26. vertical clapboards.
Specific embodiment
Case study on implementation one, referring to Fig. 1-7, for the high-precision air-sweeping type commutation weighing system of meter proof, the system
Including air blowing commutation oil feeding device and with the weight box of separator；
The air blowing commutation oil feeding device includes the commutation head and inflatable body of fixed plate, reversing cylinder, oil inlet pipe, Y type, institute
The oil inlet pipe stated includes horizontal segment and vertical section, and the free end of oil inlet pipe horizontal segment is horizontally fixed on fixed plate by revolute pair
On, one piece of parallel connecting plate corresponding with vertical section is fixed on the horizontal segment of oil inlet pipe, the reversing cylinder passes through small outstanding
Arm is horizontally fixed on the side of fixed plate, and reversing cylinder and oil inlet pipe are fixed on the same side of fixed plate, and the one of reversing cylinder
End is hinged on connecting plate, the cavity body including sprue and two symmetrical runners that head is Y type that commutate,
Commutating, it is corresponding with the cavity of runner respectively to be divided into the cavity of sprue by vertical clapboard in the cavity of head sprue
Two parts, the sprue of the head that commutates is fixed on the side of fixed plate, the oil inlet pipe vertical section by great cantilever vertically
Free end extend into commutation head from the upper port of commutation head sprue, the port of the free end of oil inlet pipe vertical section is located at perpendicular
The surface of straight baffle；
The inflatable body includes air inlet pipe, the air blowing cranse equipped with inflatable mouth and connecting chamber, the air blowing cranse edge
The sprue of commutation head and the junction of runner are horizontally fixed on the lateral wall of commutation head, and edge is equipped in air blowing cranse and is blown
The connecting chamber of gas cranse head and the tail connection in one week is uniformly provided with several in air blowing cranse and is respectively communicated with commutation head point obliquely
The inflatable mouth of the connecting chamber of the cavity and air blowing cranse of runner, fixed respectively on the symmetrical side of air blowing cranse two one with
The air inlet pipe that connecting chamber is connected.
The weight box with separator includes electronic balance and the fixed weight box of upper part and is fixed on weighing
Separator inside case, the weight box are the cylindrical shape of upper end opening, and the bottom of weight box is fixed on electronics by pillar
On the weight-bearing surface of balance, the bottom inside the weight box is set as inverted cone-shaped, and in bottom, the cone tip part of inverted cone is equipped with
One be connected to and outwardly directed oil exit pipe inside weight box, equipped with a solenoid valve on the pipeline of oil exit pipe；Described
Separator includes point oily cap and the supporting leg of umbrella, and the bottom of point oily cap is vertical solid by it by least three supporting legs
It is scheduled on the rounding conical surface of weight box bottom, point oily axis of cap and the axis collinear of weight box, the commutation head
The lower port of a runner extend into weight box and be located at a point surface for oily cap, risen when oil liquid is flowed down along through a point oily cap
Disperse buffer function, prevent oil liquid from directly impacting the bottom of box, increase system stationarity, keeps weighing accurate, protect electronic balance.
The pipeline that oil circuit is corresponded on the horizontal segment of the oil inlet pipe and fixed plate another side is connected.
The reversing cylinder includes cylinder body and piston rod, and the cylinder body is fixed on fixed plate by small cantilever level
The free end of side, the piston rod is hinged on connecting plate.
The air inlet pipe is connected with gas source.
The bus of described point of oily cap be the arc-shaped of recess, guarantees oil liquid that oil inlet pipe is flowed on point oil cap as far as possible
It is slid along a point upper surface for oily cap, prevents oil liquid from being raised, generate splashing.
The bottom interior surface of the weight box is 90 ° by the angle α of the contour line in the section of center line, is protected as far as possible
Oil liquid in card weight box can rush oil exit pipe discharge.
The present invention is a kind of high-precision air-sweeping type commutation weighing system for meter proof, and oil inlet pipe inner fluid enters
It commutates in head, the swing angle of oil inlet pipe is controlled by reversing cylinder, thus it is corresponding from commutation different runner, thus
Realize that the change in oil liquid circulation path and direction, oil liquid outflow out of commutation head runner disperse along through a point upper surface for oily cap
And slide along the medial surface of weight box to weight box, it prevents oil liquid from directly impacting the bottom of box, increases system stationarity and prevent
Only oil liquid splashes, and keeps weighing more accurate and protects electronic balance, and after oil liquid, gas source connects the air inlet pipe of inflatable body,
It is blown by each inflatable mouth of inflatable body into the runner of commutation head, the oil liquid blowout adhered on the head inner wall that commutates is changed
To head, the unnecessary error of experimental data is reduced, to obtain more accurate experimental result.
Claims (6)
- The weighing system 1. the high-precision air-sweeping type for meter proof commutates, the system include blow commutation oil feeding device and band There is the weight box of separator；It is characterized in that:The air blowing commutation oil feeding device includes the commutation head and inflatable body of fixed plate, reversing cylinder, oil inlet pipe, Y type, institute The oil inlet pipe stated includes horizontal segment and vertical section, and the free end of oil inlet pipe horizontal segment is horizontally fixed on fixed plate by revolute pair On, one piece of parallel connecting plate corresponding with vertical section is fixed on the horizontal segment of oil inlet pipe, the reversing cylinder passes through small outstanding Arm is horizontally fixed on the side of fixed plate, and reversing cylinder and oil inlet pipe are fixed on the same side of fixed plate, and the one of reversing cylinder End is hinged on connecting plate, the cavity body including sprue and two symmetrical runners that head is Y type that commutate, Commutating, it is corresponding with the cavity of runner respectively to be divided into the cavity of sprue by vertical clapboard in the cavity of head sprue Two parts, the sprue of the head that commutates is fixed on the side of fixed plate, the oil inlet pipe vertical section by great cantilever vertically Free end extend into commutation head from the upper port of commutation head sprue, the port of the free end of oil inlet pipe vertical section is located at perpendicular The surface of straight baffle；The inflatable body includes air inlet pipe, the air blowing cranse equipped with inflatable mouth and connecting chamber, the air blowing cranse edge The sprue of commutation head and the junction of runner are horizontally fixed on the lateral wall of commutation head, and edge is equipped in air blowing cranse and is blown The connecting chamber of gas cranse head and the tail connection in one week is uniformly provided with several in air blowing cranse and is respectively communicated with commutation head point obliquely The inflatable mouth of the connecting chamber of the cavity and air blowing cranse of runner, fixed respectively on the symmetrical side of air blowing cranse two one with The air inlet pipe that connecting chamber is connected；The weight box with separator includes electronic balance and the fixed weight box of upper part and is fixed in weight box The separator in portion, the weight box are the cylindrical shape of upper end opening, and the bottom of weight box is fixed on electronic balance by pillar Weight-bearing surface on, the bottom inside the weight box is set as inverted cone-shaped, in bottom the cone tip part of inverted cone be equipped with one Be connected to and outwardly directed oil exit pipe inside weight box, equipped with a solenoid valve on the pipeline of oil exit pipe；Point oil Device includes point oily cap and the supporting leg of umbrella, it is vertically fixed on by the bottom of point oily cap by least three supporting legs On the rounding conical surface of weight box bottom, point oily axis of cap and the axis collinear of weight box, the one of the commutation head The lower port of runner extend into weight box and is located at a point surface for oily cap.
- The weighing system 2. the high-precision air-sweeping type according to claim 1 for meter proof commutates, it is characterized in that: institute The pipeline that oil circuit is corresponded on the horizontal segment for the oil inlet pipe stated and fixed plate another side is connected.
- The weighing system 3. the high-precision air-sweeping type according to claim 1 for meter proof commutates, it is characterized in that: institute The reversing cylinder stated includes cylinder body and piston rod, and the cylinder body is fixed on the side of fixed plate by small cantilever level, described The free end of piston rod be hinged on connecting plate.
- The weighing system 4. the high-precision air-sweeping type according to claim 1 for meter proof commutates, it is characterized in that: institute The air inlet pipe stated is connected with gas source.
- The weighing system 5. the high-precision air-sweeping type according to claim 1 for meter proof commutates, it is characterized in that: institute The bus for point oily cap stated is the arc-shaped of recess.
- The weighing system 6. the high-precision air-sweeping type according to claim 1 for meter proof commutates, it is characterized in that: institute The bottom interior surface for the weight box stated is 90 ° by the angle α of the contour line in the section of center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633964.4A CN109374092B (en) | 2018-12-29 | 2018-12-29 | High-precision air-blowing reversing weighing system for calibrating flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633964.4A CN109374092B (en) | 2018-12-29 | 2018-12-29 | High-precision air-blowing reversing weighing system for calibrating flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109374092A true CN109374092A (en) | 2019-02-22 |
| CN109374092B CN109374092B (en) | 2024-05-31 |
Family
ID=65371836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811633964.4A Active CN109374092B (en) | 2018-12-29 | 2018-12-29 | High-precision air-blowing reversing weighing system for calibrating flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109374092B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081956A (en) * | 2019-04-29 | 2019-08-02 | 新乡航空工业(集团)有限公司 | Variable viscosity lubricating oil micro flow standard device |
| CN110081955A (en) * | 2019-04-29 | 2019-08-02 | 新乡航空工业(集团)有限公司 | Variable viscosity lubricating oil micro-flow meter calibration method |
| CN112212949A (en) * | 2020-09-21 | 2021-01-12 | 广州能源检测研究院 | Mechanical water meter calibration method and device based on laser sensor |
| CN114252135A (en) * | 2021-12-29 | 2022-03-29 | 新乡航空工业(集团)有限公司 | Pneumatic asymmetric reversing mechanism for instrument detection equipment |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202037790U (en) * | 2011-01-29 | 2011-11-16 | 河北雪龙机械制造有限公司 | Pulling type automatic sampling device for electric power storage (EPS) pre-foaming machine |
| CN202048943U (en) * | 2011-03-24 | 2011-11-23 | 沈阳合兴检测设备有限公司 | Time control water flow reversing device for warming heat radiator detector |
| CN202372236U (en) * | 2011-09-28 | 2012-08-08 | 中国计量科学研究院 | Constant water head water supply system of flow measuring device |
| CN202748108U (en) * | 2012-09-07 | 2013-02-20 | 丹东科泰仪器仪表有限公司 | Liquid reversing device of flow measurement standard system |
| CN103292875A (en) * | 2013-06-14 | 2013-09-11 | 中国人民解放军国防科学技术大学 | Reverser and liquid flow calibration system with reverser |
| 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 |
| CN204301819U (en) * | 2014-11-04 | 2015-04-29 | 新乡航空工业(集团)有限公司 | A kind of changement of liquid flow standard device |
| CN204301820U (en) * | 2014-11-04 | 2015-04-29 | 新乡航空工业(集团)有限公司 | A kind of weighing oil tank of liquid flow standard device |
| CN105066648A (en) * | 2015-09-09 | 2015-11-18 | 浦江特捷锁业有限公司 | Tea drying device control system |
| CN106643991A (en) * | 2016-12-28 | 2017-05-10 | 新乡航空工业(集团)有限公司 | Reversing weighing mechanism of micro flow standard device |
| CN207036237U (en) * | 2017-07-25 | 2018-02-23 | 武汉中理环保科技有限公司 | A kind of coal dust rotor weigher |
| CN209085728U (en) * | 2018-12-29 | 2019-07-09 | 新乡航空工业(集团)有限公司 | High-precision air-sweeping type commutation weighing system for meter proof |
-
2018
- 2018-12-29 CN CN201811633964.4A patent/CN109374092B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202037790U (en) * | 2011-01-29 | 2011-11-16 | 河北雪龙机械制造有限公司 | Pulling type automatic sampling device for electric power storage (EPS) pre-foaming machine |
| CN202048943U (en) * | 2011-03-24 | 2011-11-23 | 沈阳合兴检测设备有限公司 | Time control water flow reversing device for warming heat radiator detector |
| CN202372236U (en) * | 2011-09-28 | 2012-08-08 | 中国计量科学研究院 | Constant water head water supply system of flow measuring device |
| CN202748108U (en) * | 2012-09-07 | 2013-02-20 | 丹东科泰仪器仪表有限公司 | Liquid reversing device of flow measurement standard system |
| CN103292875A (en) * | 2013-06-14 | 2013-09-11 | 中国人民解放军国防科学技术大学 | Reverser and liquid flow calibration system with reverser |
| CN204301820U (en) * | 2014-11-04 | 2015-04-29 | 新乡航空工业(集团)有限公司 | A kind of weighing oil tank of liquid flow standard device |
| CN204301819U (en) * | 2014-11-04 | 2015-04-29 | 新乡航空工业(集团)有限公司 | A kind of changement of liquid flow standard device |
| 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 |
| CN105066648A (en) * | 2015-09-09 | 2015-11-18 | 浦江特捷锁业有限公司 | Tea drying device control system |
| CN106643991A (en) * | 2016-12-28 | 2017-05-10 | 新乡航空工业(集团)有限公司 | Reversing weighing mechanism of micro flow standard device |
| CN207036237U (en) * | 2017-07-25 | 2018-02-23 | 武汉中理环保科技有限公司 | A kind of coal dust rotor weigher |
| CN209085728U (en) * | 2018-12-29 | 2019-07-09 | 新乡航空工业(集团)有限公司 | High-precision air-sweeping type commutation weighing system for meter proof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081956A (en) * | 2019-04-29 | 2019-08-02 | 新乡航空工业(集团)有限公司 | Variable viscosity lubricating oil micro flow standard device |
| CN110081955A (en) * | 2019-04-29 | 2019-08-02 | 新乡航空工业(集团)有限公司 | Variable viscosity lubricating oil micro-flow meter calibration method |
| CN110081955B (en) * | 2019-04-29 | 2020-09-25 | 新乡航空工业(集团)有限公司 | Method for detecting variable viscosity lubricating oil micro-flowmeter |
| CN110081956B (en) * | 2019-04-29 | 2024-05-10 | 航空工业(新乡)计测科技有限公司 | Variable viscosity lubricating oil micro-flow standard device |
| CN112212949A (en) * | 2020-09-21 | 2021-01-12 | 广州能源检测研究院 | Mechanical water meter calibration method and device based on laser sensor |
| CN112212949B (en) * | 2020-09-21 | 2023-11-10 | 广州能源检测研究院 | Mechanical water meter verification method and device based on laser sensor |
| CN114252135A (en) * | 2021-12-29 | 2022-03-29 | 新乡航空工业(集团)有限公司 | Pneumatic asymmetric reversing mechanism for instrument detection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109374092B (en) | 2024-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109374092A (en) | High-precision air-sweeping type commutation weighing system for meter proof | |
| CN209085728U (en) | High-precision air-sweeping type commutation weighing system for meter proof | |
| CN105819085B (en) | Discharge line device for bottle cover device | |
| CN110081955A (en) | Variable viscosity lubricating oil micro-flow meter calibration method | |
| CN209745376U (en) | variable viscosity lubricating oil micro-flow standard device | |
| CN106409080A (en) | Bernoulli equation experiment method | |
| CN209214693U (en) | A kind of accurate device of volumetric method cumulative measurement | |
| CN209085731U (en) | The high-precision weighing case with separator for meter proof | |
| CN203719708U (en) | Accurate small-flow-velocity measurement flowmeter | |
| CN207955024U (en) | Negative pressure type ink supplying device, ink feeding system and printing device | |
| CN211652018U (en) | Multiple stable series pipeline on-way resistance experiment appearance | |
| CN107335255B (en) | Water route bubble remove device | |
| CN206627163U (en) | A kind of suspension type impact flow meter | |
| CN109439920A (en) | A kind of vacuum degassing device before casting | |
| CN110081956B (en) | Variable viscosity lubricating oil micro-flow standard device | |
| CN202812777U (en) | Float-type gas-liquid separator for liquefied natural gas filling machine | |
| CN209707300U (en) | New viscometer | |
| CN206556730U (en) | A kind of high-precision bell-jar detection of gas flow rate device | |
| CN106847008A (en) | A kind of reynolds test instrument | |
| CN209356526U (en) | A kind of multi-cavity body device that tests the speed based on boundary-layer design | |
| CN204955727U (en) | Marking head at random of no rigidity inner core | |
| CN109513238B (en) | Three-cylinder type air eliminator | |
| CN202372230U (en) | Isolation cylinder for flotation pulp liquid level measuring device | |
| CN205241219U (en) | Filling valve | |
| CN209715140U (en) | A kind of senior middle school is biochemical to use liquid storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240426 Address after: 453000, Office Building for Metrology Experiment in Pingyuan Machinery Factory (Xinxiang), No.1 Jiefang Avenue (Middle Section), Muye District, Xinxiang City, Henan Province Applicant after: Aviation industry (Xinxiang) Measurement Technology Co.,Ltd. Country or region after: China Address before: 453049 No. 168 Jianshe Road Middle Road, Muye District, Xinxiang City, Henan Province Applicant before: XINXIANG AVIATION INDUSTRY (Group) Co.,Ltd. Country or region before: China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |