CN208396963U - Two phase flow fluid machinery flow passage components polishing machine test device - Google Patents
Two phase flow fluid machinery flow passage components polishing machine test device Download PDFInfo
- Publication number
- CN208396963U CN208396963U CN201721875252.4U CN201721875252U CN208396963U CN 208396963 U CN208396963 U CN 208396963U CN 201721875252 U CN201721875252 U CN 201721875252U CN 208396963 U CN208396963 U CN 208396963U
- Authority
- CN
- China
- Prior art keywords
- housing
- cavity
- liquid
- pipe
- test cell
- 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.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 134
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 59
- 239000012530 fluid Substances 0.000 title claims abstract description 43
- 238000005498 polishing Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000003860 storage Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 45
- 238000012856 packing Methods 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 12
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000007634 remodeling Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010218 electron microscopic analysis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Two phase flow fluid machinery flow passage components polishing machine test device, including the test cell for flow passage components polishing machine to be tested, the liquid-supply unit of two-phase flow medium is provided for test cell, contain the liquid storage unit of two-phase flow medium and the pipe-line cell for leading in/out two-phase flow medium into test cell, the water inlet of the liquid-supply unit is connected to by pipe-line cell with the liquid storage unit, the water outlet pipeline unit of the liquid-supply unit is connected to the water inlet of the test cell, the water outlet of the test cell is connected to by pipe-line cell with the liquid storage unit.The beneficial effects of the utility model are: applied widely, it can be used for measuring the wear-resisting property of different materials, surface is modified, retrofits choma, impeller blade and front and rear cover plate, it is easy to operate, when testing different samples, for most constructions without disassembly, disengaging section is convenient for disassembly and assembly.
Description
Technical field
The utility model relates to a kind of two phase flow fluid machinery flow passage components polishing machine test devices.
Background technique
Fluid machinery is through the mechanical device to fluid acting trandfer fluid, such as the pump of conveying liquid and conveying gas
Blower.However, there's almost no the medium of single-phase in actual operating condition.On the one hand, sky is widely present in hydraulic
Change phenomenon, this is because saturated vapour pressure of the pressure at certain positions of hydraulic lower than the liquid medium of conveying, thus
So that the liquid medium vaporization conveyed, bubble can cause serious erosion and destruction when rupture to flow passage components, draw
Vibration and noise are played, this is because caused by design reasons, so that there is gas liquid two-phase flow states in fluid machinery.Separately
On the one hand, in the operational process of fluid machinery, the silt to suspend is often mingled in fluid media (medium), solid particle is miscellaneous with other
Will, the water medium in perfect condition there's almost no.So the hydraulic in engineer application, overwhelming majority fortune
Row is among two-phase or even three-phase turbulent flow state.Meanwhile by solid particle or cavitation phenomenon to water conservancy machinery flow passage components
Abrasion and destruction, declining to a great extent and vibrating and noise for performance can be caused.Therefore, to the multiphase of fluid machinery flow passage components
Stream research is not only theoretic development, even more lifting fluid mechanical performance and service life, the better design method of exploration and material
The important method of selection.
However, two-phase, Three-phase Flow state not only mean only that the flow regime in flow passage components is difficult to calculate and simulate,
But also existing method for numerical simulation is unable to satisfy the accurate simulation of following research at all:
1. the influence retrofited for the small size of flow passage components (such as choma) to flow passage components flow regime.
2. being directed to influence of the flow passage components material surface modifying to flow passage components wear resistance.
3. the calculating of average life span of the flow passage components under practical two phase flow operating condition.
4. the relationship of flow passage components collapse state and performance under practical two phase flow operating condition.
The studies above content can only be studied at present by experimental method, however current fluid machinery testing stand, several
It is entirely to study influence of the impeller form to external characteristics, design concept and research method and two-phase using clear water as medium
Stream research is far from each other, needs targetedly to design under two phase flow state, meets the two phase flow fluid machine required as follows
Tool flow passage components polishing machine test device:
1. test is the non-water medium configured according to actual condition with medium.
2. targetedly abrasion of the test two phase flow state to flow passage components, rather than traditional test is raised
The external characteristics such as journey, efficiency.
3. because to test the flow passage components of different surfaces material modification, different structure designs, it is therefore desirable to can be convenient
Replacement test the flow passage components such as choma, front and rear cover plate, impeller.
In addition, in order to be avoided that test result is made in pipeline destruction as suffered by the erosion of solid particle in two phase flow
At influence, therefore pipeline needs rationally arrangement, as far as possible shortening length of pipe, meanwhile, it needs to carry out surface peening appropriate.
Summary of the invention
To solve the above-mentioned problems, the abrasion of flow passage components is special when accurately testing two phase flow state by test method
Property, the utility model provides a kind of dress that can complicated two phase flow fluid machinery flow passage components be carried out with polishing machine test
It sets, the design for two phase flow even multiphase flow fluid machinery provides foundation.
Two phase flow fluid machinery flow passage components polishing machine test device described in the utility model, it is characterised in that: packet
It includes the test cell for flow passage components polishing machine to be tested, liquid-supply unit that two-phase flow medium is provided for test cell, contain
Fill the liquid storage unit of two-phase flow medium and the pipe-line cell for leading in/out two-phase flow medium into test cell, the confession
The water inlet of liquid unit is connected to by pipe-line cell with the liquid storage unit, the water outlet pipeline unit of the liquid-supply unit and institute
The water inlet connection of test cell is stated, the water outlet of the test cell is connected to by pipe-line cell with the liquid storage unit；
The liquid-supply unit includes first support, solution feed pump, feed flow motor, inlet tube and outlet tube, the solution feed pump
Be packed in the first support with the feed flow motor, and the output shaft of the feed flow motor by first shaft coupling with
The drive shaft of the solution feed pump is connected, and the water inlet of the solution feed pump passes through inlet tube and the liquid storage unit pipeline connection, institute
The water outlet of solution feed pump is stated by the inlet pipeline connection of outlet tube and the pipe-line cell, wherein the inlet tube and described
The pipe-line control valve for controlling the circulation of its liquid in pipe is equipped on outlet tube；The sending end of the solution feed pump, the feed flow
The sending end of motor is electrically connected with extraneous power supply；
The pipe-line cell includes the first communicating pipe for being connected to liquid-supply unit outlet tube, for in test cell
It the third connecting pipe for measuring pressure in test cell, is used for liquid in test cell second communicating pipe of liquid disengaging
The 4th communicating pipe in liquid storage unit and the pressure gauge for measuring pressure in test cell are introduced, first communicating pipe
The liquid outlet pipeline connection of one end and the outlet tube, the other end of first communicating pipe is by threeway respectively with described second
Communicating pipe one end, the connection of one end of the 4th communicating pipe, the other end of second communicating pipe and the test cell it is logical
The other end of the connection of liquid mouth, the 4th communicating pipe introduces in liquid storage unit；The inlet of pressure gauge and the survey pressure of test cell
Mouth connection, the pressure gauge liquid outlet at the pressure tap of the test cell are connected to one end of the third connecting pipe, institute
The other end for stating third connecting pipe equally introduces in liquid storage unit, and equal on the third connecting pipe, the 4th communicating pipe
Equipped with the control valve flowed for liquid in regulating tube；
The test cell includes end cap, the first housing, the second housing, connecting shaft, driving motor and second support, institute
It states the first housing, the second housing and driving motor to be packed in the second support, and three is coaxially arranged；The end
The outside of lid is connected by corresponding component with the motion end for adjusting unit, realizes the axial movement of end cap, the end cap
Inner wall is circumferentially with the stepped groove for installing choma to be tested along it；The first housing both ends are respectively provided with one along its axial direction
Open cavity, respectively the first cavity and the second cavity, the first cavity is connected to by axially extending bore with the second cavity, described
The upper portion side wall of the first housing is equipped with the pressure tap that can be connected to the first cavity, and lower sides with the first cavity equipped with can be connected to
Fluid-through port；The inner face detachable sealing of end cap is packed on the end face at the first cavity of the first housing, wherein end cap inner end
First cavity of open cavity and the first housing at face pieces together the test cavity for simulating two phase flow actual condition jointly；
The inner face sealing of the second housing is packed on the end face at the second cavity of the first housing, the opening at second housing inner face
Second cavity of formula cavity and the first housing pieces together the installation cavity for installing connecting shaft jointly；The outer end of the second housing is set
There is the lubricating cavity for accommodating lubricating oil, and the top of the second housing is equipped with the oil filler point that can be connected to lubricating cavity, under
Portion is equipped with the oil outlet that can be connected to lubricating cavity；The outer end of the connecting shaft passes through second shaft coupling and is packed in driving motor phase
Even, the connecting shaft is used to installing the inner ends of flow passage components from outside to inside successively axially through the second housing, the first housing
It is protruded into after axially extending bore in the first cavity of the first housing, and connecting shaft and the second housing, axially extending bore sealing are rotatablely connected,
Realize connecting shaft under the driving of driving motor using its own central axis as the rotation of shaft；The sending end of the driving motor is equal
It is electrically connected with extraneous power supply.
It is equipped with outside the end cap of the detachable of test device and includes adjusting unit, the adjusting for adjust its axial movement
Unit includes lead screw, moveable support, handwheel, guide rod and lead screw mobile platform, and the top of the lead screw mobile platform is equipped with two
Mounting plate positioned opposite, the guide rod, lead screw level are erected between the mounting plate, and lead screw and mounting plate rotation connect
It connecing, one end of the lead screw is equipped with the handwheel for rotating threaded shaft, and the thread segment of the lead screw is spirally connected with the moveable support,
The moveable support as adjust unit motion end installation test cell end cap, and the axis of the lead screw with it is described
The axis parallel of test cell realizes end cap under moveable support control along the axial movement of its own central axes.
Sealing device is added between the axially extending bore and connecting shaft in it, the sealing device includes for close
The filler of envelope, the sealing element for stopping packing leaking and the end cover for limiting connecting shaft axial movement, sealing element set
The gap location being located between axially extending bore and connecting shaft, and loaded in the seal chamber of sealing element and be used for airtight and watertight padding, filler
It is directly contacted with connecting shaft outer wall；Axially extending bore is equipped with close to the inner wall of end of the first housing for limiting sealing element axial movement
Annular protrusion, axially extending bore is spirally connected close to the end cover sealing of the end of the second housing and insertion in it, and axially leads to
Intercommunicating pore is equipped on first cavity of the packing cavity in hole and the first housing between inner wall, by introducing two-phase in packing cavity
Stream fluid cools down to sealing device.
The part of the connecting shaft protruded into the first cavity is equipped with to be circumferentially rotated for limiting it with flow passage components cooperation
Connecting key, inner end be spirally connected for limit flow passage components axial movement axis head nut.
The second support include for installing the endcap support frame of end cap, the first housing branch for installing the first housing
Support, the second housing support frame for installing the second housing, the end cap are packed on the endcap support frame, and described
Endcap support frame is packed on the moveable support of the regulating device；The first housing is mounted in the first housing support frame
On, the second housing is on the second housing support frame, and the end cap, the first housing and the second housing are coaxial.
The connecting shaft is multi-diameter shaft, and connecting shaft is horizontally supported at the second machine by two single-row tapered roller bearings
On body, wherein the opposite both ends of the surface of single-row tapered roller bearing are contacted with the shaft shoulder of connecting shaft, and single-row tapered roller bearing is opposite
From each equipped one bearing (ball) cover for sealing of both ends of the surface, the outer ring of single-row tapered roller bearing and the second housing are affixed, interior
Circle is affixed with connecting shaft, and the both ends of connecting shaft are after lubricating cavity, the open cavity of the second housing from the both ends of the surface of the second housing
And stretched out in corresponding bearing (ball) cover, realize that connecting shaft and the sealing of the second housing, bearing (ball) cover are rotatablely connected.
The test carried out using two phase flow fluid machinery flow passage components polishing machine test device described in the utility model
Method, comprising the following steps:
1) end cap is screwed off first, is shaken the handwheel of lead screw mobile platform end, is made end cap with the movement of lead screw mobile platform
Supporting element moves axially to suitable position along end cap；
2) flow passage components to be measured are mounted at the inner end of connecting shaft and the stepped groove of end cap, and end cap is playbacked；
3) two-phase flow medium to be measured is deployed to required ingredient and ratio, injects liquid storage unit, shuts and test cell
Fluid-through port be connected to pressure tap the second communicating pipe, the control valve at third connecting pipe, open on liquid-supply unit inlet tube
Pipe-line control valve, and start the feed flow motor of liquid-supply unit, after filling liquid-supply unit, open the pipeline at liquid-supply unit outlet tube
Control valve fills test cell；
4) pipe-line control valve of liquid-supply unit inlet tube and outlet tube is shut, feed flow motor is closed, that is, completes beam worker
Make；
5) driving motor for opening test cell, makes flow passage components to be measured start to test, reaches predetermined time or test
When pressure gauge measured value generates cataclysm at the pressure tap of unit, stop test, because meaning when fluid machinery pressure value cataclysm
Flow passage components inside fluid machinery generate wear-out failure and fail, the flow passage components of off-test are sampled, to sample
This progress electron-microscopic analysis surface topography change analyzes sample components material by X-ray energy spectrum, and records phase
Close experimental data；
6) test cell fluid-through tube, the control valve on third connecting pipe are opened, the test cavity for emptying test cell is indoor
Tested media；
7) step 1)~2 are repeated), the modified flow passage components to be measured of replacement remodeling or surface, then repeatedly step 3)~6)
Compare test.
The beneficial effects of the utility model are: the applicable research range of the device is extensive, it can be used for measuring different materials, surface
The wear-resisting property of modified, remodeling choma, impeller blade and front and rear cover plate, it is easy to operate, it is tested to different samples
When, for most constructions without disassembly, disengaging section is convenient for disassembly and assembly.The device provides hydrodynamic force, test cell by water supplying unit
It is served only for experiment test, but due to the presence of simulated impeller, a small amount of function can be still done to pumped (conveying) medium, this seals simulation
The flow field of intracavitary portion's complexity has positive effect.
Detailed description of the invention
Fig. 1: being two phase flow fluid machinery flow passage components polishing machine test device main view；
Fig. 2: being two phase flow fluid machinery flow passage components polishing machine test device top view；
Fig. 3: being the main view of test cell；
Fig. 4: being the top view of test cell；
Fig. 5: being the side view of test cell；
Fig. 6: being the main view for adjusting unit；
Fig. 7: being the front view for adjusting unit.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawing
Referring to attached drawing:
The two phase flow fluid machinery flow passage components polishing machine test device described in the utility model of embodiment 1, including with
In the test cell 1 of flow passage components polishing machine to be tested, liquid-supply unit 2, the splendid attire of two-phase flow medium are provided for test cell
The liquid storage unit 3 of two-phase flow medium and pipe-line cell 4 for leading in/out from two-phase flow medium to test cell, the confession
The water inlet of liquid unit 2 is connected to by pipe-line cell 4 with the liquid storage unit 3, the water outlet pipeline unit of the liquid-supply unit 2
It is connected to the water inlet of the test cell 1, the water outlet of the test cell 1 passes through pipe-line cell 4 and the liquid storage unit 3
Connection；
The liquid-supply unit 2 includes first support 21, solution feed pump 22, feed flow motor 23, inlet tube 24 and outlet tube 25,
The solution feed pump 22 and the feed flow motor 23 are packed in the first support 21, and the output of the feed flow motor 23
Axis is connected by first shaft coupling 26 with the drive shaft of the solution feed pump 22, and the water inlet of the solution feed pump 22 passes through inlet tube 24
With 3 pipeline connection of liquid storage unit, the water outlet of the solution feed pump 22 passes through the feed liquor of outlet tube 25 and the pipe-line cell 4
Mouth pipeline connection, wherein being equipped with the pipeline for controlling the circulation of its liquid in pipe on the inlet tube 24 and the outlet tube 25
Control valve, i.e. inlet tube 24 are equipped with the inlet tube control valve 241 for controlling its interior liquid flowing, and outlet tube 25, which is equipped with, to be used
In the outlet tube control valve 251 for controlling liquid flowing in it；Liquid-supply unit does not participate in the test link to flow passage components directly, supplies
The effect of water system is quickly to fill the pump housing and pipeline for test portion, because the original design intention of device is in order to convenient accurate
Wear-resisting property of the test flow passage components in two phase flow operating condition, so reducing equipment in order to preferably provide experimental enviroment
Redundancy bring is inconvenient, thus part of detecting to suct ability limited, it is necessary to need water supply part to provide initially for part of detecting
Filling pump.It is easy to load and unload so selection is cheap, fluid machinery of the moderate pulp pump of power as water supply part, and matches
Corresponding shaft coupling and motor are closed, realizes and quickly fills pump, selects two phase flow pulp pump herein.When test cell is full of two phase flow
After medium, the pipe-line control valve on liquid-supply unit inlet tube and liquid-supply unit and test cell connecting pipeline can be tightened, is made
Liquid-supply unit is temporarily disengaged from.
It is two-phase flow medium so the solution feed pump 22 of water system should select well to fit due to needing the medium conveyed
The pulp pump of two phase flow state is answered, two phase flow pulp pump uses " relative jam, relative suction " in two phase flow theory
The Hydraulic Design that principle is pumped makes the hydraulic performance for pumping flow passage components meet the rule of Solid-fluid Two-phase Flow, to reduce
Slurry is washed away and is worn to flow passage components, substantially increases the working efficiency and service life of pump；Due to pumping two phase flow stream
Body inevitably will lead to certain vibration and impact, so answering in the selection of first shaft coupling 26 and feed flow motor 23
The model of the selection impact resistance, vibration subtracts if the tenon of groove and intermediate slider on oldham coupling can compensate for parallel offset
Vibration bring is influenced and is damaged less.The pipe-line cell 4 includes the first communicating pipe for being connected to liquid-supply unit outlet tube
41, the second communicating pipe 42 for being passed in and out for liquid in test cell, the third connecting pipe for measuring pressure in test cell
43, for by test cell liquid introduce liquid storage unit in the 4th communicating pipe 44 and be used to measure pressure in test cell
Pressure gauge 45, the liquid outlet pipeline connection of one end of first communicating pipe 41 and the outlet tube 25, it is described first connection
The other end of pipe 41 is connected to described second communicating pipe, 42 one end, one end of the 4th communicating pipe 44 respectively by threeway, institute
The other end for stating for the second communicating pipe 42 is connected to the fluid-through port of the test cell 1, and the other end of the 4th communicating pipe 44 draws
Enter in liquid storage unit 3；The inlet of pressure gauge 45 is connected to the pressure tap of test cell 1, mounted in the survey pressure of the test cell 1
Pressure gauge liquid outlet at mouthful is connected to one end of the third connecting pipe 43, and the other end of the third connecting pipe 43 equally draws
Enter in liquid storage unit 3, and the third connecting pipe 43, is equipped with for liquid flow in regulating tube on the 4th communicating pipe 44
Dynamic control valve, i.e. third connecting pipe 43 are equipped with the third connecting pipe control valve 431 for controlling its interior liquid flowing, and the 4th
Be equipped with communicating pipe 44 for control its interior liquid flowing the 4th communicating pipe control valve 441；Due to the two-phase stream mode of conveying
Medium, pipeline surface needs to carry out certain reinforcing, is caused to test number by the destruction and erosion of two phase flow to avoid pipeline
According to error, such as meet ceramic coating or HVOF technology combination nano-carbide composite ceramics using WC/Co and can not change
Under the premise of becoming matrix material, anti-corrosion, wearability and service life are increased substantially；
The test cell 1 include end cap 11, the first housing 12, the second housing 13, connecting shaft 14, driving motor 15 and
Second support 16, the first housing 12, the second housing 13 and driving motor 15 are packed in the second support 16, and
And three is coaxially arranged；The inner wall of the end cap 11 is circumferentially with the stepped groove for installing choma 5 to be tested along it；Described
One body, 12 both ends are respectively provided with an open cavity, respectively the first cavity and the second cavity, the first cavity along its axial direction
It is connected to by axially extending bore 121 with the second cavity, the upper portion side wall of the first housing 12 is equipped with and can be connected to the first cavity
Pressure tap 122, lower sides are equipped with the fluid-through port 123 that can be connected to the first cavity；The inner face of end cap 11 passes through respective bolt
Detachable is sealingly mounted on the end face at the first cavity of the first housing 12, wherein the open cavity at end cap inner face with
First cavity of the first housing pieces together the test cavity 124 for simulating two phase flow actual condition jointly；The second housing 13 it is interior
End face is sealed on the end face being packed at the second cavity of the first housing 12 by respective bolt, at 13 inner face of the second housing
Second cavity of open cavity and the first housing pieces together the installation cavity 131 for installing connecting shaft jointly；The second housing 13
Outer end be equipped with lubricating cavity 132 for accommodating lubricating oil, and the top of the second housing 13 be equipped with can and lubricating cavity
The oil filler point 133 of connection, lower part are equipped with the oil outlet 134 that can be connected to lubricating cavity；The outer end of the connecting shaft 14 passes through second
Shaft coupling 141 is connected with driving motor 15 is packed in, the connecting shaft 14 be used to install the inner ends of flow passage components from outside to inside according to
It is secondary axially through the second housing 13, the first housing 12 axially extending bore 121 after protrude into the first cavity of the first housing 12, and
And connecting shaft 14 and the second housing 13, the sealing of axially extending bore 121 are rotatablely connected, and realize connecting shaft 14 in the driving of driving motor 15
Under using its own central axis as the rotation of shaft.
Liquid storage unit 3 is the liquid reserve tank for storing two phase flow fluid, can be deployed according to the actual condition of required test
Ratio shared by ingredient and heterogeneity, this is essentially different with other clean water experiment platforms.Three water are submerged in liquid reserve tank
Pipe, wherein an inlet tube for water supplying unit, another two belong to pipe-line cell, respectively for the pressure tap with test cell
Fourth communicating pipe of the connection for surveying the third connecting pipe of pressure and for leading to liquid to test cell, the third connecting pipe of test cell
Pressure gauge is installed.Since the solid particle in two phase flow can also cause certain damage to pipeline, in order to reduce pipeline factor
It is interfered caused by experimental result, to test cell pipeline surface covering to strengthen, WC/Co can be used and meet ceramic painting
Layer, porosity is extremely low, binding force >=75MPa, and abrasion resistance properties are 80 times of a plating hard chrome, has highly resistance zinc corrosion energy.
The adjusting unit 6 for adjusting its axial movement, the adjusting are equipped with outside the end cap of the detachable of test cell 1
Unit 6 includes lead screw 61, moveable support 62, handwheel 63, guide rod 64 and lead screw mobile platform 65, the lead screw mobile platform 65
Top be equipped with two mounting plates 651 positioned opposite, the guide rod 64,61 level of lead screw be erected between the mounting plate 651,
And lead screw 61 and mounting plate 651 are rotatablely connected, and one end of the lead screw 61 is equipped with the handwheel 63 for rotating threaded shaft, the silk
The thread segment of thick stick 61 is spirally connected with the moveable support 62, and the moveable support 62 is welded as the motion end for adjusting unit and surveyed
The end cap 11 of unit, and the axis parallel of the axis of the lead screw 61 and the test cell 1 are tried, realizes that end cap 11 is moving
Along the axial movement of its own central axes under the dynamic control of supporting element 62, to adjust screw rod platform by the handwheel for shaking end
It moves left and right, facilitates the dismounting and change of sample during the experiment.
Sealing device 125, the sealing device 125 are added between the axially extending bore 121 and connecting shaft in it
Including the sealing element for airtight and watertight padding, for stopping packing leaking and the end cover for limiting connecting shaft axial movement
127, sealing element is set in the gap location between axially extending bore and connecting shaft, and loads in the seal chamber of sealing element for sealing
Filler, filler directly contacts with connecting shaft outer wall；Axially extending bore is equipped with close for limiting close to the inner wall of end of the first housing
The annular protrusion of sealing axial movement, axially extending bore seal spiral shell with the end cover being inserted into it close to the end of the second housing
It connects, and is equipped with intercommunicating pore 126 on the first cavity of the packing cavity of axially extending bore 121 and the first housing 12 between inner wall,
Cooled down by introducing two phase flow fluid in packing cavity to sealing device 125.
The part of the connecting shaft 14 protruded into the first cavity is equipped with circumferentially to be turned for limiting it with flow passage components cooperation
Dynamic connecting key, inner end be spirally connected for limit flow passage components axial movement axis head nut 142.
The second housing 13 is connected by bolt with the first housing 12, and mainly plays a part of to support fixed connection shaft.
It is machined with oil filler point and oil outlet on the wall surface of the second housing, for injecting and clearing up lubricating oil, at the chamber both ends of body
There are bearing and bearing (ball) cover respectively, for fixed support connecting shaft, there are also sealing rings between bearing (ball) cover and connecting shaft.Bearing choosing
With rolling bearing, because bearing receives the effect of radial force and axial force simultaneously, therefore single-row tapered roller bearing is selected.
The end cap, the first housing, the second housing are equipped with corresponding supporting suspension beam, this is because due to test device
Middle operation is two-phase flow medium, inevasible to generate biggish vibration, and multiple supports can share impact, remains steady
It is qualitative.
The second support 16 includes for installing the endcap support frame 161 of end cap, first for installing the first housing
Body support frame 162, the second housing support frame 163 for installing the second housing, the end cap are packed in the endcap support
On frame 161, and the endcap support frame 161 is welded on the moveable support of the regulating device；The first housing weldering
It connecing on the first housing support frame, the second housing is welded on the second housing support frame, and the end cap,
The first housing and the second housing are coaxial.
The connecting shaft 14 is multi-diameter shaft, and connecting shaft is horizontally supported at by two single-row tapered roller bearings 143
On the second housing 13, wherein the opposite both ends of the surface of single-row tapered roller bearing are contacted with the shaft shoulder of connecting shaft, single-row tapered roller
Each equipped one bearing (ball) cover 144 for sealing of the both ends of the surface that bearing is away from each other, the outer ring of single-row tapered roller bearing 143 and the
Two bodies 13 are affixed, and inner ring and connecting shaft 14 are affixed, and the both ends of connecting shaft 14 are after lubricating cavity, the open cavity of the second housing
Stretched out from the both ends of the surface of the second housing and corresponding bearing (ball) cover, realize connecting shaft and the second housing, bearing (ball) cover it is close
Envelope rotation connection.
The test cell is the core for testing fluid machinery flow passage components polishing machine, and it is solid that main test applies to conveying
The equal flow passage components of the choma of the fluid machinery of liquid two-phase, the front and rear cover plate (71,72) of impeller assembly 7 and impeller 73.The examination
It is similar with two layers of rotary table to test chamber shape, is divided into ante-chamber and back cavity, the ante-chamber is bolted by end cap and the first housing
The closed cavity of formation, inside are also welded on endcap support frame by stepped groove and the fixed choma to be tested of bolt, end cap,
Can by lead screw mobile platform carry out lateral displacement, back cavity be by the formed circular cylindrical cavity of the first housing, and by end cap with
Choma forms semi-enclosed, and by axis head nut installation fixation impeller to be measured, (impeller to be measured can be enclosed, half-open for inside
Formula, open type, will be comprising or not comprising test to front and rear cover plate in corresponding test), due to being required in simulation in test process
The flow field state of portion's complexity does not need simulated impeller and sucts water from pond, it is only necessary to which it is during the work time to inside
Fluid acting, makes interior flow field disorder, as close possible to the flow field state of impeller internal, so back cavity is directly surveyed with part of detecting
Pressure pipe is connected with part of detecting inlet and outlet pipes, rather than as the fluid machineries such as pump by water inlet pipe connect suction chamber, then via pressure water
Room pumped (conveying) medium enters outlet pipe, and the benefit designed in this way is: the length of pipeline is 1. greatly reduced, due to testing two phase flow
Pipeline need appropriate strengthening surface to promote intensity, 2. can pass through so simplifying pipeline and can reduce cost and experimental error
Part of detecting inlet and outlet pipes quickly fill and empty entire part of detecting cavity 3. part of detecting run when, part of detecting Inlet and outlet water
Pipe and pressure-measuring pipe valve are shut, and reduce the energy charge in test process.In addition, part of detecting pressure-measuring pipe is not detection
Lift size, but when the abrupt pressure change of survey, it can judge that certain abrasion has occurred in the intracorporal flow passage components of test chamber
It destroys, the mark as non-temporal measurement.
The power of the part of detecting be from driving motor and with second shaft coupling pass to connecting shaft, connecting shaft
One end connects second shaft coupling, and the other end passes through the first housing, the second housing, protrudes into back cavity, passes through keyway and impeller to be measured week
To fixation, rotated coaxially with realizing, it, can be by the axle sleeve of replacement cooperation, in this way when cooperating various sizes of impeller to be measured
Can to avoid replacement connecting shaft caused by unnecessary trouble, process screw thread in spindle nose, screw on axis head nut realize with it is to be measured
The axial restraint of impeller, and fastening and sealing are realized equipped with gasket.Cavity configuration after the first housing and end cap jointly constructs go out, back cavity
And the fluid-through port by processing on the first housing is connected to the second communicating pipe and third connecting pipe with pressure tap and (and can be described as surveying pressure
Pipe).Meanwhile the other end of the first housing processes bolt hole and has installed end cover, the end cover and the first housing, axis
The seal cavity of installation sealing device is collectively formed, due to existing in seal cavity greater than external pressure, can be generated along axis
Leakage, it is therefore necessary to design sealing device, similar to the shaft seal design in centrifugal pump.Axle envelope both can effectively stop air into
Enter seal chamber, also the fluid in seal chamber can be prevented to leak into air.In centrifugal pump seal design, common axle envelope type
Have: 1. packing seal；2. mechanical seal；3. floating seal.Want to the requirement reached: 1. sealing is safe and reliable；2. consuming
Power is low；3. can adapt to the transition status of different rotating speeds.Packing seal is a kind of traditional gland sealing.It is generated by gland
Pressing force forces filler to be pressed on sealing surfaces (outer surface of axis and seal chamber) to compress filler, generates sealing effect
Radial force, thus seal.Packing seal structure is simple, operates easy to maintenance, low in cost, the filler used according to it
Form is divided into soft packing seal and hard packing sealing, and the latter is mainly used for the machinery equipment to work under high pressure, high temperature and high speed.It is soft to fill out
Expect that seal construction is simple and readily replaceable, application is very universal, so selecting packing seal herein.
Embodiment 2 is carried out using two phase flow fluid machinery flow passage components polishing machine test device described in embodiment 1
Test method, comprising the following steps:
1) bolt that end cap is connect with the first housing shakes the handwheel of lead screw mobile platform end, moves end cap with lead screw
The moveable support of moving platform moves axially to suitable position along end cap；If test chamber is provided with choma and impeller, mouth is screwed off
The nut of bolt, test cell spindle nose that ring is connect with end cap, replacing choma and impeller to be tested, (then installation is matched if needed
The axle sleeve of conjunction)；
2) flow passage components to be measured are mounted at the inner end of connecting shaft and the stepped groove of end cap, are successively installed above-mentioned
Axis head nut, end cap and choma connection bolt after and end cap playbacked fix；
3) two-phase flow medium to be measured is deployed to required ingredient and ratio, injects liquid storage unit, shuts and test cell
Fluid-through port be connected to pressure tap the second communicating pipe, the control valve at third connecting pipe, open on liquid-supply unit inlet tube
Pipe-line control valve, and start the feed flow motor of liquid-supply unit, after filling liquid-supply unit, open the pipeline at liquid-supply unit outlet tube
Control valve fills test cell；
4) pipe-line control valve of liquid-supply unit inlet tube and outlet tube is shut, feed flow motor is closed, that is, completes beam worker
Make；
5) driving motor for opening test cell, makes flow passage components to be measured start to test, reaches predetermined time or test
When pressure gauge measured value generates cataclysm at the pressure tap of unit, stop test, because meaning when fluid machinery pressure value cataclysm
Flow passage components inside fluid machinery generate wear-out failure and fail, the flow passage components of off-test are sampled, to sample
This progress electron-microscopic analysis surface topography change analyzes sample components material by X-ray energy spectrum, and records phase
Close experimental data；
6) test cell fluid-through tube, the control valve on third connecting pipe are opened, the test cavity for emptying test cell is indoor
Tested media；
7) step 1)~2 are repeated), the modified flow passage components to be measured of replacement remodeling or surface, then repeatedly step 3)~6)
Compare test.
Content described in this specification embodiment is only an enumeration of the implementation forms of the utility model concept, this is practical new
The protection scope of type should not be construed as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model is also wrapped
Include those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (6)
1. two phase flow fluid machinery flow passage components polishing machine test device, it is characterised in that: including being used for flow passage to be tested
The test cell of part polishing machine, the liquid-supply unit that two-phase flow medium is provided for test cell, the liquid storage for containing two-phase flow medium
Unit and pipe-line cell for leading in/out from two-phase flow medium to test cell, the water inlet of the liquid-supply unit pass through
Pipe-line cell is connected to the liquid storage unit, the water outlet pipeline unit of the liquid-supply unit and the water inlet of the test cell
The water outlet of connection, the test cell is connected to by pipe-line cell with the liquid storage unit；
The liquid-supply unit includes first support, solution feed pump, feed flow motor, inlet tube and outlet tube, the solution feed pump and institute
Feed flow motor is stated to be packed in the first support, and the output shaft of the feed flow motor by first shaft coupling with it is described
The drive shaft of solution feed pump is connected, and the water inlet of the solution feed pump passes through inlet tube and the liquid storage unit pipeline connection, the confession
The water outlet of liquid pump passes through the inlet pipeline connection of outlet tube and the pipe-line cell, wherein the inlet tube and the liquid out
The pipe-line control valve for controlling the circulation of its liquid in pipe is equipped on pipe；The sending end of the solution feed pump, the feed flow motor
Sending end be electrically connected with extraneous power supply；
The pipe-line cell includes the first communicating pipe for being connected to liquid-supply unit outlet tube, for for liquid in test cell
It second communicating pipe of disengaging the third connecting pipe for measuring pressure in test cell, is used to introduce liquid in test cell
The 4th communicating pipe in liquid storage unit and the pressure gauge for measuring pressure in test cell, one end of first communicating pipe
It is connected to respectively with described second with the other end of the liquid outlet pipeline connection of the outlet tube, first communicating pipe by threeway
Pipe one end, the connection of one end of the 4th communicating pipe, the other end of second communicating pipe and the fluid-through port of the test cell
The other end of connection, the 4th communicating pipe introduces in liquid storage unit；The inlet of pressure gauge and the pressure tap of test cell connect
Logical, the pressure gauge liquid outlet at the pressure tap of the test cell is connected to one end of the third connecting pipe, and described the
The other end of tee joint pipe equally introduces in liquid storage unit, and the third connecting pipe, is equipped on the 4th communicating pipe
The control valve flowed for liquid in regulating tube；
The test cell includes end cap, the first housing, the second housing, connecting shaft, driving motor and second support, and described
One body, the second housing and driving motor are packed in the second support, and three is coaxially arranged；The end cap
Inner wall is circumferentially with the stepped groove for installing choma to be tested along it；The first housing both ends are respectively provided with one along its axial direction
Open cavity, respectively the first cavity and the second cavity, the first cavity is connected to by axially extending bore with the second cavity, described
The upper portion side wall of the first housing is equipped with the pressure tap that can be connected to the first cavity, and lower sides with the first cavity equipped with can be connected to
Fluid-through port；The inner face detachable sealing of end cap is packed on the end face at the first cavity of the first housing, wherein end cap inner end
First cavity of open cavity and the first housing at face pieces together the test cavity for simulating two phase flow actual condition jointly；
The inner face sealing of the second housing is packed on the end face at the second cavity of the first housing, the opening at second housing inner face
Second cavity of formula cavity and the first housing pieces together the installation cavity for installing connecting shaft jointly；The outer end of the second housing is set
There is the lubricating cavity for accommodating lubricating oil, and the top of the second housing is equipped with the oil filler point that can be connected to lubricating cavity, under
Portion is equipped with the oil outlet that can be connected to lubricating cavity；The outer end of the connecting shaft passes through second shaft coupling and is packed in driving motor phase
Even, the connecting shaft is used to installing the inner ends of flow passage components from outside to inside successively axially through the second housing, the first housing
It is protruded into after axially extending bore in the first cavity of the first housing, and connecting shaft and the second housing, axially extending bore sealing are rotatablely connected,
Realize connecting shaft under the driving of driving motor using its own central axis as the rotation of shaft；The sending end of the driving motor is equal
It is electrically connected with extraneous power supply.
2. two phase flow fluid machinery flow passage components polishing machine test device as described in claim 1, it is characterised in that: test
Be equipped with the adjusting unit for adjusting its axial movement outside the end cap of the detachable of device, the adjusting unit include lead screw,
The top of moveable support, handwheel, guide rod and lead screw mobile platform, the lead screw mobile platform is equipped with two installations positioned opposite
Plate, the guide rod, lead screw level are erected between the mounting plate, and lead screw and mounting plate are rotatablely connected, the lead screw
One end is equipped with the handwheel for rotating threaded shaft, and the thread segment of the lead screw is spirally connected with the moveable support, the mobile support
End cap of the part as the motion end installation test cell for adjusting unit, and in the axis of the lead screw and the test cell
Axis is parallel, realizes end cap under moveable support control along the axial movement of its own central axes.
3. two phase flow fluid machinery flow passage components polishing machine test device as described in claim 1, it is characterised in that: described
Sealing device is added between axially extending bore and connecting shaft in it, the sealing device includes for airtight and watertight padding, uses
In the sealing element for stopping packing leaking and the end cover moved axially for limiting connecting shaft, sealing element is set in axially extending bore
Gap location between connecting shaft, and loaded in the seal chamber of sealing element and be used for airtight and watertight padding, filler and connecting shaft outer wall
Directly contact；Axially extending bore is equipped with the annular protrusion for limiting sealing element axial movement close to the inner wall of end of the first housing,
Axially extending bore close to the second housing end and insertion its in end cover sealing be spirally connected, and the packing cavity of axially extending bore with
Intercommunicating pore is equipped on first cavity of the first housing between inner wall, by introducing two phase flow fluid in packing cavity to sealing
Device cools down.
4. two phase flow fluid machinery flow passage components polishing machine test device as claimed in claim 3, it is characterised in that: described
The part of connecting shaft protruded into the first cavity is equipped with for limiting its connecting key circumferentially rotated, inner end with flow passage components cooperation
Portion be spirally connected for limit flow passage components axial movement axis head nut.
5. two phase flow fluid machinery flow passage components polishing machine test device as claimed in claim 2, it is characterised in that: described
Second support include for installing the endcap support frame of end cap, the first housing support frame for installing the first housing, for pacifying
The second housing support frame of the second housing is filled, the end cap is packed on the endcap support frame, and the endcap support frame
It is packed on the moveable support for adjusting unit；The first housing is on the first housing support frame, and described the
Two bodies are on the second housing support frame, and the end cap, the first housing and the second housing are coaxial.
6. two phase flow fluid machinery flow passage components polishing machine test device as claimed in claim 4, it is characterised in that: described
Connecting shaft is multi-diameter shaft, and connecting shaft is horizontally supported on the second housing by two single-row tapered roller bearings, wherein single
The opposite both ends of the surface of row tapered roller bearing are contacted with the shaft shoulder of connecting shaft, and the both ends of the surface that single-row tapered roller bearing is away from each other are each
Equipped one bearing (ball) cover for sealing, the outer ring of single-row tapered roller bearing and the second housing are affixed, and inner ring and connecting shaft are solid
It connects, both ends of the surface and corresponding axis of the both ends of connecting shaft after lubricating cavity, the open cavity of the second housing from the second housing
It is stretched out in socket end lid, realizes that connecting shaft and the sealing of the second housing, bearing (ball) cover are rotatablely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875252.4U CN208396963U (en) | 2017-12-28 | 2017-12-28 | Two phase flow fluid machinery flow passage components polishing machine test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875252.4U CN208396963U (en) | 2017-12-28 | 2017-12-28 | Two phase flow fluid machinery flow passage components polishing machine test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208396963U true CN208396963U (en) | 2019-01-18 |
Family
ID=65065822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721875252.4U Expired - Fee Related CN208396963U (en) | 2017-12-28 | 2017-12-28 | Two phase flow fluid machinery flow passage components polishing machine test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208396963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194385A (en) * | 2017-12-28 | 2018-06-22 | 浙江工业大学 | Two phase flow fluid machinery flow passage components polishing machine test device and test method |
-
2017
- 2017-12-28 CN CN201721875252.4U patent/CN208396963U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194385A (en) * | 2017-12-28 | 2018-06-22 | 浙江工业大学 | Two phase flow fluid machinery flow passage components polishing machine test device and test method |
| CN108194385B (en) * | 2017-12-28 | 2024-03-26 | 浙江工业大学 | Device and method for testing wear performance of two-phase flow fluid machinery flow-through part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107074334B (en) | For the sealing device of ship, propulsion unit, ship and method for sealing propeller for ship axis | |
| CN105973600B (en) | A kind of multifunctional water lubricating thrust bearing systems test bed | |
| CN112502859B (en) | High-speed dynamic sealing element test device for rocket engine | |
| CN208396963U (en) | Two phase flow fluid machinery flow passage components polishing machine test device | |
| CN114563295B (en) | Friction and abrasion test bed for simulating seabed high-pressure muddy environment containing sediment | |
| CN102062107A (en) | Multi-stage axial flow submerged pump with long shaft and method for conveying phosgene | |
| CN108194385A (en) | Two phase flow fluid machinery flow passage components polishing machine test device and test method | |
| MX2014001666A (en) | Bearing assembly for a vertical turbine pump. | |
| CN105259099B (en) | A kind of ultrahigh speed water lubriucated bearing cavitation test device | |
| CN109490127A (en) | A kind of hydrodynamic lubrication annulus frictional wear experimental device and measurement method | |
| CN206772492U (en) | A kind of liquid-propellant rocket engine turbine pump flex rotor high-speed balancing supporting arrangement | |
| CN215811451U (en) | Testing device of stop valve | |
| CN216429929U (en) | Combined floating packing sealing structure of melt discharging gear pump | |
| CN114754944A (en) | Positive/negative pressure dynamic sealing performance test platform | |
| CN205879530U (en) | Lubricated thrust bearing systematic testing platform of multi -functional water | |
| CN214196502U (en) | High-speed dynamic sealing element test device | |
| WO2016009977A1 (en) | Vertical shaft pump | |
| CN114646430A (en) | Test method of double-end-face mechanical seal static pressure operation test bed | |
| CN201991790U (en) | Long shaft multi-stage axial flow submerged pump | |
| CN209690099U (en) | A kind of hydrodynamic lubrication annulus frictional wear experimental device | |
| CN203098245U (en) | Simulation environment simulation test bed of abrasion resistance of pump | |
| CN207470372U (en) | A kind of two-wheel flute milling machine slush pump driving device | |
| CN2429663Y (en) | Dry airtight sealed long shaft multi-stage underwater pump | |
| CN221034555U (en) | Novel bearing external multilayer sealing structure rotary joint | |
| CN111175043B (en) | Test device for water lubrication bearing abrasion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190118 |