CN108262314A - Hydraulic pipeline high-efficiency rinsing method - Google Patents
Hydraulic pipeline high-efficiency rinsing method Download PDFInfo
- Publication number
- CN108262314A CN108262314A CN201810043531.7A CN201810043531A CN108262314A CN 108262314 A CN108262314 A CN 108262314A CN 201810043531 A CN201810043531 A CN 201810043531A CN 108262314 A CN108262314 A CN 108262314A
- Authority
- CN
- China
- Prior art keywords
- valve
- flushing
- pipeline
- platform
- pipe
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/032—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces by the mechanical action of a moving fluid
Abstract
The invention belongs to hydraulic pipeline douching technique fields, and in particular to a kind of hydraulic pipeline high-efficiency rinsing method.The hydraulic pipeline high-efficiency rinsing method, includes the following steps：1）Pipe protection is welded；2）Compressed air blow off is used before rinsing；3）It rinses for the first time；4）Second of flushing.Advantage is：Stainless steel tube material is allow not have to pickling with regard to flushing effect can be reached, servo hydraulic system, which rinses usual purging method, needs 15 20 days, pipeline high-efficiency rinsing method can shorten the time of half, can be rapidly achieved by rinsing cleannes by NAS4 grades or more, good technique effect can be reached, there is preferable technical prospect.
Description
Technical field
The invention belongs to hydraulic pipeline douching technique fields, and in particular to a kind of hydraulic pipeline high-efficiency rinsing method.
Background technology
Hydraulic system is very high to the cleannes requirement of the equipment such as pipeline, but the fluid pressure line of new installation configuration and equipment exist
Various impurity can not meet the requirement of hydraulic system, particularly servo, proportional hydraulic system, and higher is required to cleannes.Therefore,
Fluid pressure line and equipment must effectively be rinsed, can just be come into operation after reaching cleannes requirement.Traditional pipeline punching
Washing method is flushing device to be recycled to carry out circulation flushing after first carrying out pipe pickling passivation cleaning, the impurity in pipeline is rushed
Wash clean.But have that time-consuming usually wants more than time two weeks, a large amount of construction periods, manpower and expense are expended, rinses effect
Fruit unobvious.
Invention content
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of hydraulic pipeline high-efficiency rinsing methods.
The present invention is achieved through the following technical solutions：
A kind of hydraulic pipeline high-efficiency rinsing method, using oil is cleaned as medium, the impurity in pump circulation fluid flushing line reaches
Clear deimpurity purpose, the purging method include the following steps：
1）Pipe protection is welded, and pipeline reduces oxidated layer thickness using the argon arc welding welding of argon-filled protection in pipe；
2）Compressed air blow off is used before rinsing, removing is attached to bulky grain in pipe, saves filter core usage amount；
3）It rinses for the first time；By flusher and main line into, oil return pipe Opposite direction connection, flushing of pipeline circuit is grouped with valve
It controls, weld seam is periodically beaten in flushing process；High-precision filter element filtering fluid is installed；
4）Second of flushing；Supervisor's pipeline, valve platform are normally connect with system pumping plant, bye-pass short circuit, uses rinsing plate after valve platform
Proportioning valve, servo valve, pressure reducing valve on alternative valve platform.System pumping plant carries out high turbulence punching using high pressure, high temperature, big flow fluid
It washes；Oil return, circulation loop installation high-precision filter element filtering fluid；Flushing is grouped using valve deck valve door.
One as the present invention preferably, uses compressed air blow off before rinsing, first suppresses, then opens valve purging two
Minute, valve is then shut off, pressure is gone up to open valve purging again, be operated repeatedly, and moment is operated by mixed and disorderly substances in pipe using this
It goes out, finally holds blank and be placed on tube outlet, until checking on blank without dirt.
One as the present invention preferably, reaches a requirement NAS4 grade of servo hydraulic system, and when flushing promotes original
Return filter and the filter element that recursive filter filtering precision is 3 μm, carry out the reinforcing of finishing operations in system
It rinses, especially in the case where the duration is more urgent, is conducive to shorten washing time in this way, speed up the work, and reach full
Meaning effect.
Preferably, high temperature rinses mainly using the viscosity-temperature characteristics of fluid one as the present invention, by improving oil temperature, drops
The viscosity of low oil so as to improve the Reynolds number of system, makes certain section become turbulent flow from laminar flow or become strong turbulent flow from turbulent flow, together
When due to the reduction of viscosity, the impurity for investing tube wall and dead angle is made easily to be pulled away, temperature change causes the variation of Reynolds number, improves
The oil temperature of system, Reynolds number can improve several times even more than ten times, and heating can be carried out by electric heater, and system pressure regulating can also be used
Valve circulating-heating when oil temperature is up to heating is stopped after 60 DEG C, is rinsed for pressure oil to system, waits and heat up again after being down to room temperature.
One as the present invention is preferably improved flushing effect, periodically pipe outer wall beaten along pipeline, preferably every 3-4
H beats once, every time 20~30 min, and emphasis is wanted to tap to elbow, flange, threeway, welding position, valve etc., makes attachment
It is shaken off and is washed away in the pollutant of inner wall.
One as the present invention is preferably carried out packet control process, is arranged according to the requirement of pipeline thickness and flow
Group, should follow rather few not more, be propped up after the former head, first remote rear near flushing principle, so that thickness pipeline is attained by preferable punching
Wash effect.
The beneficial effects of the invention are as follows：A kind of hydraulic pipeline high-efficiency rinsing method of the present invention allows stainless steel tube material not
With pickling with regard to that can reach flushing effect, servo hydraulic system, which rinses usual purging method, needs 15-20 days, pipeline high-efficiency rinsing side
Method can shorten the time of half, and can be rapidly achieved by rinsing cleannes by NAS4 grades or more, operation implementation is simple, flush efficiency is high,
The effectively save flushing activity duration, to rinse cleannes high, solves that conventional flush process efficiency is low, the time is long, effect is poor, difficulty
The problems such as big, can reach good technique effect, have preferable technical prospect.
Description of the drawings
Attached drawing 1 is the structure diagram the present invention relates to flush loop.
In figure, 1 hydraulic power unit, 2 first valve platforms, 3 second valve platforms, 4 third valve platforms, 5 first executive components, 6 second perform
Element, 7 third executive components, 8 first valves, 9 second valves, 10 third valves, 11 first pipe nipples, 12 second pipe nipples, 13 thirds
Pipe nipple, 14 first test points, 15 second test points, 16 third test points, 17 the 4th test points, 18 the 5th test points, 19 times
Oil strainer, 20 recursive filters, 21 inflow pipelines, 22 oil returning tubes.
Specific embodiment
Specific embodiments of the present invention are given below, are further described for the composition to the present invention.
Hydraulic pipeline high-efficiency rinsing method of the present invention first, during to configuring pipes, protection welding, pipeline is carried out to pipeline
It is welded using the argon arc welding of argon-filled protection in pipe；
Secondly, compressed air blow off is used before rinsing, is first suppressed, then opens valve and purges two minutes, valve is then shut off, presses
Power is gone up to open valve purging again, operates, is gone out mixed and disorderly substances in pipe repeatedly using this operation moment.Blank is finally held to be placed on
Tube outlet, check blank on without dirt until；
Again, first time flushing is carried out；By flusher and main line into, oil return pipe Opposite direction connection, flushing of pipeline circuit is used
Valve grouping controls, and weld seam is periodically beaten in flushing process；
Finally, second is carried out to rinse；Supervisor's pipeline, valve platform are normally connect with system pumping plant, bye-pass short circuit after valve platform is used
Proportioning valve, servo valve, pressure reducing valve on rinsing plate alternative valve platform.System pumping plant is carried out strong using high pressure, high temperature, big flow fluid
Turbulent flow rinses；Rinsing speed should make fluid, in turbulent condition, accomplish that this can be calculated by Reynolds number, Reynolds in each loop
Number is more than 13800 (minimum flow velocity 5-7 m/s).Return filter 19 in hydraulic system and recursive filter 20 are installed absolutely
Filtering accuracy is 3 μm of filter element, and the reinforcing for carrying out finishing operations is rinsed.Flushing is grouped using valve deck valve door.
Hydraulic pipeline high-efficiency rinsing method of the present invention, mainly includes the following steps, 1）Pipe protection is welded；2）It is used before rinsing
Compressed air blow off；3）It rinses for the first time；4）Second of flushing；
Details are as follows for each step：
1）Pipe protection is welded
Pipeline is welded using argon arc welding and the argon-filled protection in pipe, reduces oxidated layer thickness；
2）Compressed air blow off is used before rinsing
It first pours compressed air into pipeline to suppress, inspection ensures no air leakage point；It opens valve again to purge two minutes, Ran Houguan
Valve closing door, wait for compressed air pressure go up stablize after again quickly open valve, by compressed air moment quick release generate
Force of explosion pipeline is purged, then turn off valve, so operate repeatedly.Mixed and disorderly substances in pipe is rushed using this operation moment
Go out.It finally holds blank and is placed on tube outlet, until checking on blank without dirt；
3）It rinses for the first time
It rinses for the first time and uses special flushing pump and special flushing oil, by all intermediate duct short circuits in flushing, only do pipeline
It rinses, special flushing pump high pressure hydraulic fluid port is connect with oil returning tube 22, using interim the first valve of line isolation platform 2, the second valve platform 3
With third valve platform 4, the first valve 8 of connection, the second valve 9 and third valve 10, by inflow pipeline 21, by special flush filter stream
Special oil tank is returned, wherein, it is rinsed accordingly by being turned on and off valve the first valve 8, the second valve 9 and third valve 10 to open and close
Flushing line, realize the control of flushing pressure, flow, periodically tap pipeline in flushing process, particularly welding, connecting portion
Position, filter element requirement filtering accuracy be 3 μm, heat oil temperature, oil temperature preferably at 60 DEG C -70 DEG C, by the first test point 14,
Second test point 15, third test point 16 and 17 on-line checking cleannes of the 4th test point restore normal pipeline company after reaching NAS4
It connects；
4）Second of flushing
Second of flushing is rinsed all pipelines and valve platform access system, using work-pump station and working oil on valve platform together
All proportioning valves and servo valve are substituted using rinsing plate, to be formed into a loop, are such as schemed, 1 high pressure hydraulic fluid port of hydraulic power unit connect into
Oil-piping 21 is connect by valve the first valve 8, the second valve 9 and third valve 10 with the first valve platform 2, the second valve platform 3 and third valve platform 4,
It is terminated closing near the first executive component 5, the second executive component 6 and third executive component 7 using the first pipe nipple 11, second
Executive component short circuit is isolated for pipe 12 and third pipe nipple 13, and the first valve platform 2, the second valve platform 3 and third valve platform 4 connect oil return pipe
Road 22 through 19 oil return box of return filter, wherein, by being turned on and off the first valve 8, the second valve 9 and third valve 10 opening and
It closes and rinses corresponding flushing valve platform, realize the control of flushing pressure, flow, the filter of return filter 19, recursive filter 20
Core requirement filtering accuracy is 3 μm, and for oil temperature preferably at 60 DEG C -70 DEG C, 1 pressure of hydraulic power unit is preferably not less than 50MPa, passes through second
After test point 15, third test point 16, the 4th test point 17 and 18 on-line checking cleannes of the 5th test point reach NAS4, second
Secondary flushing reaches rinsing requirement, restores normal pipeline connection, removes rinsing plate and restore proportioning valve and servo valve, removes the first termination
Pipe 11, the second pipe nipple 12, third pipe nipple 13, connection executive component the first executive component 5, the second executive component 6, third are held
Units 7 restore normal filter core, complete second and rinse.
The present invention is not limited to the above-described embodiments, anyone should learn the present invention enlightenment under make with the present invention
With same or similar technical solution, each fall within protection scope of the present invention.
The present invention be not described in detail technology, shape, construction part be known technology.
Claims (5)
1. hydraulic pipeline high-efficiency rinsing method, which is characterized in that include the following steps：
1）Pipe protection is welded, and pipeline reduces oxidated layer thickness using the argon arc welding welding of argon-filled protection in pipe；
2）Compressed air blow off is used before rinsing, removing is attached to bulky grain in pipe, saves filter core usage amount；
3）It rinses for the first time；By flusher and main line into, oil return pipe Opposite direction connection, flushing of pipeline circuit is grouped with valve
It controls, weld seam is periodically tapped in flushing process；High-precision filter element filtering fluid is installed；
4）Second of flushing；Supervisor's pipeline, valve platform are normally connect with system pumping plant, bye-pass short circuit, uses rinsing plate after valve platform
Proportioning valve, servo valve, pressure reducing valve on alternative valve platform, system pumping plant carry out high turbulence punching using high pressure, high temperature, big flow fluid
It washes；Oil return, circulation loop installation high-precision filter element filtering fluid；Flushing is grouped using valve deck valve door.
2. hydraulic pipeline high-efficiency rinsing method according to claim 1, it is characterized in that：The step 2）With pressure before middle flushing
When contracting airblasting purges, first compressed air is poured into pipeline and suppressed, inspection ensures no air leakage point；Valve purging is opened again
Two minutes, valve is then shut off, compressed air pressure is waited for quickly to open valve again after going up stabilization, by compressed air moment
The force of explosion that quick release generates purges pipeline, then turns off valve, so operates repeatedly, using this operation moment
Mixed and disorderly substances in pipe is gone out, blank is finally held and is placed on tube outlet, until checking on blank without dirt.
3. hydraulic pipeline high-efficiency rinsing method according to claim 1, it is characterized in that：The step 3）Middle first time rinses
Using special flushing pump and special flushing oil, by all intermediate duct short circuits in flushing, flushing of pipeline is only done, by special flushing
Pump high pressure hydraulic fluid port is connect with oil returning tube, using interim the first valve of line isolation platform, the second valve platform and third valve platform, connection first
By inflow pipeline, Special oil tank is flowed back to by special flush filter for valve, the second valve and third valve, wherein, by open or
It closes valve the first valve, the second valve and third valve and rinses corresponding flushing line to open and close, realize flushing pressure, flow
It controlling, pipeline is periodically tapped in flushing process, particularly welding, connecting portion, filter element requirement filtering accuracy is 3 μm,
Oil temperature is heated, oil temperature passes through the first test point, the second test point, third test point and the 4th test point preferably at 60 DEG C -70 DEG C
On-line checking cleannes restore normal pipeline connection after reaching NAS4.
4. hydraulic pipeline high-efficiency rinsing method according to claim 1, it is characterized in that：The step 4）In second rinse
Using work-pump station and working oil, all pipelines and valve platform access system are rinsed together, on valve platform all proportioning valves and
Servo valve using rinsing plate substitute, to be formed into a loop, hydraulic power unit high pressure hydraulic fluid port connection inflow pipeline, by the first valve of valve,
Second valve and third valve are connect with the first valve platform, the second valve platform and third valve platform, are being closed on the first executive component, second are being performed member
Nearby executive component short circuit is isolated using the first pipe nipple, the second pipe nipple and third pipe nipple for part and third executive component,
First valve platform, the second valve platform connect oil returning tube through return filter oil return box with third valve platform, wherein, by being turned on and off
First valve, the second valve and third valve rinse corresponding flushing valve platform to open and close, and realize the control of flushing pressure, flow,
Return filter, recursive filter filter core requirement filtering accuracy be 3 μm, oil temperature is preferably at 60 DEG C -70 DEG C, hydraulic power unit pressure
Preferably not less than 50MPa is cleaned by the second test point, third test point, the 4th test point and the 5th test point on-line checking
After degree reaches NAS4, second of flushing reaches rinsing requirement, restores normal pipeline connection, removes rinsing plate and restores proportioning valve and watch
Valve is taken, removes the first pipe nipple, the second pipe nipple, third pipe nipple, the first executive component of connection executive component, second perform member
Part, third executive component restore normal filter core, complete second and rinse.
5. the hydraulic pipeline high-efficiency rinsing method according to claim 1 or 3, it is characterized in that：When the timing taps pipeline
Beat pipe outer wall along pipeline, beaten once every 3-4h, every time 20~30 min, to elbow, flange, threeway, welding position,
Valve etc. wants emphasis to tap, and the pollutant for being attached to inner wall is made to be shaken off and washed away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810043531.7A CN108262314A (en) | 2018-01-17 | 2018-01-17 | Hydraulic pipeline high-efficiency rinsing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810043531.7A CN108262314A (en) | 2018-01-17 | 2018-01-17 | Hydraulic pipeline high-efficiency rinsing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108262314A true CN108262314A (en) | 2018-07-10 |
Family
ID=62775807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810043531.7A Pending CN108262314A (en) | 2018-01-17 | 2018-01-17 | Hydraulic pipeline high-efficiency rinsing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108262314A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759394A (en) * | 2018-11-26 | 2019-05-17 | 中冶天工集团有限公司 | A kind of compact multifunction oil flushing equipment |
| CN109909268A (en) * | 2019-03-29 | 2019-06-21 | 东莞市森菲环保科技有限公司 | A kind of food waste treatment system and its control method |
| CN111997961A (en) * | 2020-06-30 | 2020-11-27 | 中国二十冶集团有限公司 | Monitoring system of hydraulic station |
| CN111999439A (en) * | 2020-08-26 | 2020-11-27 | 武汉宏泰杯业贸易有限公司 | Glass bottle recovery detection device with cleaning function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091953A (en) * | 2006-06-19 | 2007-12-26 | 上海宝冶建设有限公司 | Flushing and installing methods by using online raw liquor press pump under piping once |
| CN101637768A (en) * | 2009-08-26 | 2010-02-03 | 中冶集团华冶资源开发有限责任公司 | Pipeline cleaning method |
| EP2586540A1 (en) * | 2011-10-27 | 2013-05-01 | Manfred Völker | Flushing System |
| CN103191893A (en) * | 2013-03-27 | 2013-07-10 | 深圳市广前电力有限公司 | Cleaning method and deivce of lubricating oil pipeline |
| CN104624575A (en) * | 2013-11-08 | 2015-05-20 | 五冶集团上海有限公司 | Method for flushing hydraulic pipe oil through hydraulic power unit equipment |
-
2018
- 2018-01-17 CN CN201810043531.7A patent/CN108262314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091953A (en) * | 2006-06-19 | 2007-12-26 | 上海宝冶建设有限公司 | Flushing and installing methods by using online raw liquor press pump under piping once |
| CN101637768A (en) * | 2009-08-26 | 2010-02-03 | 中冶集团华冶资源开发有限责任公司 | Pipeline cleaning method |
| EP2586540A1 (en) * | 2011-10-27 | 2013-05-01 | Manfred Völker | Flushing System |
| CN103191893A (en) * | 2013-03-27 | 2013-07-10 | 深圳市广前电力有限公司 | Cleaning method and deivce of lubricating oil pipeline |
| CN104624575A (en) * | 2013-11-08 | 2015-05-20 | 五冶集团上海有限公司 | Method for flushing hydraulic pipe oil through hydraulic power unit equipment |
Non-Patent Citations (1)
| Title |
|---|
| 王平德: "《秦山核电二期工程建设经验汇编 6 施工卷 II》", 30 June 2004 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759394A (en) * | 2018-11-26 | 2019-05-17 | 中冶天工集团有限公司 | A kind of compact multifunction oil flushing equipment |
| CN109909268A (en) * | 2019-03-29 | 2019-06-21 | 东莞市森菲环保科技有限公司 | A kind of food waste treatment system and its control method |
| CN109909268B (en) * | 2019-03-29 | 2024-02-09 | 东莞市森菲环保科技有限公司 | Food waste treatment system and control method thereof |
| CN111997961A (en) * | 2020-06-30 | 2020-11-27 | 中国二十冶集团有限公司 | Monitoring system of hydraulic station |
| CN111999439A (en) * | 2020-08-26 | 2020-11-27 | 武汉宏泰杯业贸易有限公司 | Glass bottle recovery detection device with cleaning function |
| CN111999439B (en) * | 2020-08-26 | 2021-07-30 | 南京溧水高新产业股权投资有限公司 | Glass bottle recovery detection device with cleaning function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108262314A (en) | Hydraulic pipeline high-efficiency rinsing method | |
| CN103949447B (en) | Set lubricating oil system pipeline cleans and oil flushing equipment and method | |
| CN206763534U (en) | A kind of self-cleaning fume pipeline system of automatic washing | |
| CN107774139A (en) | Offline reverse osmosis membrane purging system and cleaning method | |
| CN201610877U (en) | Normal and reverse circulation flusher of hydraulic line | |
| CN102764748A (en) | Method for washing hydraulic lubricating system | |
| CN104624575B (en) | Method for flushing hydraulic pipe oil through hydraulic power unit equipment | |
| CN207866096U (en) | A kind of full-automatic tube brush condenser on-line cleaning system | |
| CN207797872U (en) | Heat exchanger rinses incrustation scale device | |
| CN104482526A (en) | Processing unit for boiler cleaning connector of supercritical unit and cleaning process thereof | |
| CN207035942U (en) | A kind of plate type heat exchanger clearing apparatus | |
| CN102492955A (en) | Device and method for pickling and passivating stainless steel pipes | |
| CN206350944U (en) | It is a kind of can self-cleaning filter | |
| CN108360005A (en) | A kind of online cycle pickling passivating method of carbon steel piping | |
| CN201177476Y (en) | Condensator automatic cleaning device | |
| CN1945196B (en) | Two joint type online cleaning robot for condenser copper tube | |
| CN206744163U (en) | A kind of excrement dirt rinse-system | |
| CN214913723U (en) | Filter capable of discharging sewage online | |
| CN213670916U (en) | Pipeline system for cleaning converter module unit | |
| CN106180089A (en) | A kind of aircraft toilet plumbing drain purging system | |
| CN205966664U (en) | Aircraft lavatory sewer piping cleaning system | |
| CN218873137U (en) | Pipeline backwashing device of cold rolling and pickling line | |
| CN110743238A (en) | Sewage online detection self-cleaning pretreatment system and method | |
| CN204550717U (en) | There is the acid solution heating system of backwashing function | |
| CN211133230U (en) | Sewage on-line measuring automatically cleaning pretreatment systems |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180710 |
|
| RJ01 | Rejection of invention patent application after publication |