CN108266546A - A kind of electric rotary-type fluid commutator - Google Patents
A kind of electric rotary-type fluid commutator Download PDFInfo
- Publication number
- CN108266546A CN108266546A CN201711469878.XA CN201711469878A CN108266546A CN 108266546 A CN108266546 A CN 108266546A CN 201711469878 A CN201711469878 A CN 201711469878A CN 108266546 A CN108266546 A CN 108266546A
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- China
- Prior art keywords
- injector assembly
- water supply
- supply pipeline
- electric rotary
- type fluid
- 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.)
- Pending
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- 239000012530 fluid Substances 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 230000011664 signaling Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0853—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/042—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves with electric means, e.g. for controlling the motor or a clutch between the valve and the motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0058—Optical means, e.g. light transmission, observation ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to a kind of electric rotary-type fluid commutators, including main casing, water supply pipeline, fiber-optic signal signalling generator, injector assembly, servo motor and controller, wherein water supply pipeline fixation connects on a main housing, water supply pipeline upper end is rotatablely connected with injector assembly liquid feeding end, and water supply pipeline lower flange end is inlet；Injector assembly driving end is connected to the output shaft of servo motor through retarder；Fiber-optic signal signalling generator is mounted at two point symmetries of retarder；Multiple fluid tips built in injector assembly correspond to multiple fan-shaped water conservancy diversion grids of main casing respectively.The injector assembly that the present invention is mounted on using the driving of servo motor combination worm type of reduction gearing on self-aligning bearing carries out at the uniform velocity rotating operation, ensure that stability and uniformity during commutation operation；Commutation form uses the unidirectional circular motion using thrust bearing as fulcrum, avoids the intrinsic vibration of traditional commutator.
Description
Technical field
The present invention relates to a kind of liquid flow measurement device, specially a kind of electric rotary-type fluid commutator.
Background technology
At present, the fluid commutator main power source applied in field of liquid flow measurement be compressed gas, commutator
Changement carry out bilateral reciprocation under gas pressure effect, liquid flow direction is driven to change, within the calibrating time
Quickly, fully, accurately detection fluid from pipeline to exchange between standard metrology appliance and bypass pipe is circulated, directly affects flow
The accuracy of measurement result, so as to directly influence verification result.
Since the gas pressure for acting on changement is non-constant pressure, cause changement in action there is
Acceleration and hysteresis quality cause influence to the result of flow measurement.Meanwhile faster commutating period and smaller in order to obtain
The journey time that commutates is poor, and changement often bears larger active force, and larger vibration is integrally caused to commutator, is more influenced
Metering accuracy and service life.
Invention content
For fluid commutator in the prior art there are the deficiencies of larger vibration, influence metering accuracy, the present invention will
Solve the problems, such as that being to provide a kind of commutation ability stablizes, the higher electric rotary-type fluid commutator of accuracy.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of electric rotary-type fluid commutator of the present invention, including main casing, water supply pipeline, fiber-optic signal signalling generator, spray
The fixation of nozzle assembly, servo motor and controller, wherein water supply pipeline connects on a main housing, water supply pipeline upper end and injector assembly into
Liquid end is rotatablely connected, and water supply pipeline lower flange end is inlet；Injector assembly driving end is connected to the defeated of servo motor through retarder
Shaft；Fiber-optic signal signalling generator is mounted at two point symmetries of retarder.
Multiple fluid tips built in injector assembly correspond to multiple fan-shaped water conservancy diversion grids of main casing respectively.
Water supply pipeline upper end is rotatablely connected with injector assembly liquid feeding end, specially：Thrust axis is equipped in water supply pipeline upper end
It holds, injector assembly liquid feeding end is vertically mounted on the thrust bearing.
Injector assembly driving end be set on injector assembly top, including upper mounted plate, self-aligning bearing, connecting rod, retarder and
Servo motor, wherein, upper mounted plate is installed on main casing top by being set on the seal closure outside injector assembly, in upper mounted plate
Center portion is arranged with self-aligning bearing, and connecting rod upper end is connect with self-aligning bearing, under be terminated with thrust bearing, injector assembly is with connecting rod
For rotation center, it is installed in seal closure, below upper mounted plate.
Seal closure by positioning pin location and installation on a main housing；Observation window there are two being set on seal closure, one is
Nozzle positioning viewfinder, another is fluid state observation window.
Sealing bearing holder (housing, cover) is equipped with outside thrust bearing, and is equipped at sealing bearing holder (housing, cover) from leak detection tube, is exported from leak detection tube
Outside main casing.
The present invention also has level protecting switch, at the liquid outlet of main casing.
The invention has the advantages that and advantage：
1. the present invention is mounted on the injector assembly on self-aligning bearing using the driving of servo motor combination worm type of reduction gearing
At the uniform velocity rotating operation is carried out, ensure that stability and uniformity during commutation operation；Commutation form is used using thrust bearing as branch
The unidirectional circular motion of point, avoids the intrinsic vibration of traditional commutator.
2. electric rotary-type fluid commutator of the present invention can exist relative standard uncertainty control caused when commutating
0.01%；Device pressure oscillation control does not influence standard set-up entirety uncertainty of measurement 0.05%.
3. commutator commutation journey time of the present invention is measured using two groups of fiber-optic signal signalling generators, by two groups of fibre optical sensors
2 points of acquisitions carry out the forms of fiber pulse triggering simultaneously, using the principle of double-time measurement, when effectively increasing commutation stroke
Between poor accuracy of measurement, commutating period measurement error is less than 1 × 10-6s。
4. the high-precision encoder that electric rotary-type fluid commutator of the present invention can be carried by servomotor controller
The spinning movement of injector assembly is positioned rapidly, the water-drop point of accurate calibration nozzle, effectively shortening commutation journey time is poor, commutation
Journey time difference≤5ms.
5. electric rotary-type fluid commutator of the present invention is equipped with nozzle positioning viewfinder, form carries LED light, can intuitive nozzle
Walk, convenient for judging whether the position of commutator nozzle deviates, abundant foundation is provided to the operational reliability of commutator.
6. electric rotary-type fluid commutator of the present invention is equipped with fluid state observation window, form carries LED light, can naked eyes
Flowing of the visual inspection fluid from pipeline to nozzle exit detection fluid when circulation is exchanged between standard metrology appliance and bypass pipe
State, to judge detect whether fluid is abundant, accurately switching provides strong foundation.
7. electric rotary-type fluid commutator of the present invention stable action in commutation, no impingement phenomenon, in any condition
Commutator will not cause to detect fluid splash when commutating, and maximum noise control is in below 55dB when commutator works.
8. electric rotary-type fluid commutator of the present invention takes reasonable grinding and polishing process means with fluid contacting portion, have
Effect reduces medium residual, can be widely applied in liquid flow standard device, and failure rate is low, noiseless, maintenance maintenance is convenient, section
Save later maintenance expense.
Description of the drawings
Figure 1A is electric rotary-type fluid commutator front view of the present invention；
Figure 1B is the left view of Figure 1A；
Fig. 2 is the direction view of bowing of injector assembly in the present invention.
Wherein, 1 is main casing, and 2 be water supply pipeline, and 3 be sealing bearing holder (housing, cover), and 4 be thrust bearing, and 5 be injector assembly, and 6 are
Seal closure, 7 be upper mounted plate, and 8 be self-aligning bearing, and 9 be the support of bearing, and 10 be worm type of reduction gearing, and 11 be photoelectricity baffle, 12
It is exhaust pipe for servo motor, 13,14 be from leak detection tube, and 15 be bypass pipe, and 16 be liquid-level switch, and 17 be rectangular nozzle, and 18 are
Nozzle positioning viewfinder, 19 be hanging ring, and 20 be fluid state observation window, and 21 be fiber-optic signal signalling generator.
Specific embodiment
The present invention is further elaborated with reference to the accompanying drawings of the specification.
As shown in Figure 1A, 1B, a kind of electric rotary-type fluid commutator of the present invention, including main casing 1, water supply pipeline 2, light
The fixation of optical fiber signaling signalling generator 21, injector assembly 5 and servo motor 12, wherein water supply pipeline 2 is connected on main casing 1, upper hose
2 upper end of road is rotatablely connected with 5 liquid feeding end of injector assembly, and 2 lower flange end of water supply pipeline is inlet；Injector assembly 5 drives end warp
Retarder (using worm type of reduction gearing 10) is connected to the output shaft of servo motor 12；Fiber-optic signal signalling generator is mounted on retarder
Two point symmetries at.
In the present embodiment, electric rotary-type fluid commutator includes main casing 1, water supply pipeline 2, fiber-optic signal signalling generator
21st, nozzle positioning viewfinder 18, fluid state observation window 20, injector assembly 5, servo motor 12 and its controller, wherein upper water
The fixation of pipeline 2 is connected on main casing 1, and 2 upper end of water supply pipeline is rotatablely connected with 5 liquid feeding end of injector assembly, 2 lower flange of water supply pipeline
It holds as inlet；Fiber-optic signal signalling generator 21 is mounted at two point symmetries of upper mounted plate 7；Observation window 18/20 is mounted on close
On sealing cover 6；The driving of injector assembly 5 end is connected to the output shaft of servo motor 12 through retarder；Servo motor 12 is used as rotary power,
Using thrust bearing as fulcrum, swivel nozzle is driven to do the minimum rotary motion of frictional force through worm type of reduction gearing 10, pass through control
The instruction that device processed is assigned makes mechanical action uniformly, steadily, accurately, it is ensured that the time consistency of swapping in and out.
Multiple rectangular nozzles 17 built in injector assembly 5 correspond to multiple fan-shaped water conservancy diversion grids in main casing 1, such as Fig. 2 respectively
It is shown.
In the present embodiment, the rectangular nozzle 17 of injector assembly 5 is six, and using rectangle, also there are six fan for tool in main casing 1
Shape water conservancy diversion grid.The generally funnel-form of injector assembly 5.
2 upper end of water supply pipeline and the liquid feeding end of injector assembly 5 are rotatablely connected, specially：It is equipped with and pushes away in 2 upper end of water supply pipeline
Power bearing 4, the liquid feeding end of injector assembly 5 are vertically mounted on the thrust bearing 4；Injector assembly driving end is set on injector assembly
End, including upper mounted plate 7, self-aligning bearing 8, injector assembly connecting rod and servo motor 12, wherein, upper mounted plate 7 is installed on
6 upper end of seal closure, 7 central part of upper mounted plate are equipped with self-aligning bearing 8, and injector assembly connecting rod upper end is connect with self-aligning bearing 8,
Under be terminated with thrust bearing 4, injector assembly 5 is installed in main casing 1, the lower section of seal closure 6 using connecting rod as rotation center.
In the present embodiment, in order to improve thrust bearing service life, maintenance rate is reduced, sealing is equipped with outside thrust bearing
Bearing holder (housing, cover) 3, while be also equipped in sealing bearing holder (housing, cover) 3 from leak detection tube 14, it is set on outside main casing 1 from the outlet of leak detection tube 14.It is using
During commutator, such as sealing bearing holder (housing, cover) 3 has media leaks, is flowed out by that can be directly observed medium from leak detection tube 14, to make to judge.
Electric part of the present invention has controller, servo shaft joint and high-precision encoder, and wherein controller is used as and watches
The driver of motor 12 is taken, is installed separately with commutator main body, controller is furnished with high-precision encoder.Controller is using integrated
Circuit engineering can realize complicated control method, obtain the control effect of fast precise, and being aided with high-precision encoder can be with
Accurately complete position control, speed tracing.Also there is level protecting switch, at the liquid outlet of main casing 1, signal
Line is connected to electric control system, for controlling the liquid level in main casing 1.
In the present embodiment, water supply pipeline 2 is welded on metal main casing 1, flange end enters spray to detection fluid from below
Nozzle assembly 5,5 one end of injector assembly are vertically mounted on thrust bearing 4, the direct-connected worm type of reduction gearing 10 of the other end, by servo
The driving of motor 12 rotates.Injector assembly 5 sets up six rectangular nozzles separately, corresponds to six fan-shaped water conservancy diversion of main casing 1 respectively
Grid since inertia force is small when rotation starts, stream field influences small, makes injection liquid condition steady, will not generate splash phenomena.
Commutator commutates journey time by two groups of fibre optical sensors 21 and photoelectricity baffle 11 2 points of pulsed forms simultaneously, with reference to
The umber of pulse for the high-precision encoder that servomotor controller carries is accurate by control system using the principle of double-time measurement
It is poor that ground calculates commutation journey time.
The high-precision encoder pair that electric rotary-type fluid commutator of the present invention can be carried by servomotor controller
The spinning movement of injector assembly 5 positions rapidly, the water-drop point of accurate calibration rectangular nozzle 17, effectively shortens commutation journey time
Difference, commutation journey time difference≤5ms.
Electric rotary-type fluid commutator of the present invention is equipped with nozzle positioning viewfinder 18, and form carries LED light, can intuitive rectangle
Nozzle 17 walks, and convenient for judging whether the position of commutator nozzle deviates, is provided fully to the operational reliability of commutator
Foundation.
Electric rotary-type fluid commutator of the present invention is equipped with fluid state observation window 20, and form carries LED light, can naked eyes
Visual inspection fluid is from pipeline to detection fluid in 17 exit of rectangular nozzle when circulation is exchanged between standard metrology appliance and bypass pipe
Flow regime, for judge detect fluid whether fully, accurately switching strong foundation is provided.
Claims (7)
1. a kind of electric rotary-type fluid commutator, it is characterised in that：Including main casing, water supply pipeline, fiber-optic signal signalling generator,
The fixation of injector assembly, servo motor and controller, wherein water supply pipeline connects on a main housing, water supply pipeline upper end and injector assembly
Liquid feeding end is rotatablely connected, and water supply pipeline lower flange end is inlet；Injector assembly driving end is connected to servo motor through retarder
Output shaft；Fiber-optic signal signalling generator is mounted at two point symmetries of retarder.
2. electric rotary-type fluid commutator as described in claim 1, it is characterised in that：Multiple fluid sprays built in injector assembly
Mouth corresponds to multiple fan-shaped water conservancy diversion grids of main casing respectively.
3. electric rotary-type fluid commutator as described in claim 1, it is characterised in that：Water supply pipeline upper end and injector assembly
Liquid feeding end is rotatablely connected, specially：Thrust bearing is equipped in water supply pipeline upper end, injector assembly liquid feeding end is vertically mounted on this and pushes away
On power bearing.
4. electric rotary-type fluid commutator as described in claim 1, it is characterised in that：Injector assembly driving end is set on nozzle
On assemblyPortion, including upper mounted plate, self-aligning bearing, connecting rod, retarder and servo motor, wherein, upper mounted plate is by being set on
Seal closure outside injector assembly is installed on main casing top, and upper mounted plate central part is equipped with self-aligning bearing, connecting rod upper end
Connect with self-aligning bearing, under be terminated with thrust bearing, injector assembly using connecting rod as rotation center, be installed in seal closure, on
Below fixed plate.
5. electric rotary-type fluid commutator as described in claim 4, it is characterised in that：Seal closure is pacified by positioning finger setting
Dress is on a main housing；It is set on seal closure there are two observation window, one is nozzle positioning viewfinder, another sees for fluid state
Examine form.
6. electric rotary-type fluid commutator as described in claim 4, it is characterised in that：Sealing axis is equipped with outside thrust bearing
Bearing sleeve, and be equipped at sealing bearing holder (housing, cover) from leak detection tube, it is set on outside main casing from leak detection tube outlet.
7. electric rotary-type fluid commutator as described in claim 1, it is characterised in that：Also there is level protecting switch, peace
At the liquid outlet of main casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469878.XA CN108266546A (en) | 2017-12-29 | 2017-12-29 | A kind of electric rotary-type fluid commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469878.XA CN108266546A (en) | 2017-12-29 | 2017-12-29 | A kind of electric rotary-type fluid commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108266546A true CN108266546A (en) | 2018-07-10 |
Family
ID=62772787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711469878.XA Pending CN108266546A (en) | 2017-12-29 | 2017-12-29 | A kind of electric rotary-type fluid commutator |
Country Status (1)
| Country | Link |
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| CN (1) | CN108266546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672186A (en) * | 2019-10-13 | 2020-01-10 | 中国航空工业集团公司北京长城计量测试技术研究所 | Method for reducing wall-hanging effect of commutator of flow device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195643Y (en) * | 1994-06-16 | 1995-04-26 | 机械工业部上海工业自动化仪表研究所 | Fluid commutator |
| CN2577024Y (en) * | 2002-06-21 | 2003-10-01 | 朱家顺 | Fluid switching device |
| CN201043654Y (en) * | 2007-01-19 | 2008-04-02 | 中海石油研究中心 | Liquid rotating joint device |
| CN205861126U (en) * | 2016-06-24 | 2017-01-04 | 中国石油天然气股份有限公司 | Electric rotary flow commutator |
| CN107131930A (en) * | 2017-06-06 | 2017-09-05 | 浙江省计量科学研究院 | A kind of type open type fluid switching device in the same direction and the method for fluid switching and timing |
-
2017
- 2017-12-29 CN CN201711469878.XA patent/CN108266546A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195643Y (en) * | 1994-06-16 | 1995-04-26 | 机械工业部上海工业自动化仪表研究所 | Fluid commutator |
| CN2577024Y (en) * | 2002-06-21 | 2003-10-01 | 朱家顺 | Fluid switching device |
| CN201043654Y (en) * | 2007-01-19 | 2008-04-02 | 中海石油研究中心 | Liquid rotating joint device |
| CN205861126U (en) * | 2016-06-24 | 2017-01-04 | 中国石油天然气股份有限公司 | Electric rotary flow commutator |
| CN107131930A (en) * | 2017-06-06 | 2017-09-05 | 浙江省计量科学研究院 | A kind of type open type fluid switching device in the same direction and the method for fluid switching and timing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672186A (en) * | 2019-10-13 | 2020-01-10 | 中国航空工业集团公司北京长城计量测试技术研究所 | Method for reducing wall-hanging effect of commutator of flow device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180710 |
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