CN105627557A - Corrosion preventing structure with two anodes used in cooperation in inner container of water heater - Google Patents
Corrosion preventing structure with two anodes used in cooperation in inner container of water heater Download PDFInfo
- Publication number
- CN105627557A CN105627557A CN201610151439.3A CN201610151439A CN105627557A CN 105627557 A CN105627557 A CN 105627557A CN 201610151439 A CN201610151439 A CN 201610151439A CN 105627557 A CN105627557 A CN 105627557A
- Authority
- CN
- China
- Prior art keywords
- anodes
- electrode
- metal inner
- water heater
- inner tube
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 230000007797 corrosion Effects 0.000 title abstract description 6
- 238000005260 corrosion Methods 0.000 title abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 26
- 239000010439 graphite Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- 238000009335 monocropping Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 5
- 239000010936 titanium Substances 0.000 abstract 5
- 229910052719 titanium Inorganic materials 0.000 abstract 5
- 239000013589 supplement Substances 0.000 abstract 1
- 210000003298 dental enamel Anatomy 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/203—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with electrodes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/40—Arrangements for preventing corrosion
- F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Abstract
The invention discloses a corrosion preventing structure with two anodes used in cooperation in an inner container of a water heater. The corrosion preventing structure comprises the electronic anodes, a power source, the metal inner container and a heating pipe. The electronic anodes are further connected with a positive electrode of the power source, the metal inner container serves as a cathode, and the metal inner container is connected with a negative electrode of the power source. The electronic anodes, the heating pipe and the metal inner container are fixedly connected in an insulated manner. A titanium electrode and a graphite electrode are in conductive connection to serve as the electronic anodes. The graphite electrode is added to the anodes, and is used in cooperation with the titanium electrode, so that on the one hand, the conductive area of the anodes is increased, protection currents are increased, and the situation that tiny crack protection is not in place is relieved; and on the other hand, the activity of the titanium electrode is higher, the consumption speed of the graphite electrode in the use process is greatly reduced, meanwhile, the titanium electrode can protect the graphite electrode, and the titanium electrode and the graphite electrode supplement each other.
Description
Technical field
The present invention relates to inner container structure of water heater, specifically, it relates in a kind of water heater liner two kinds of anodes with the use of anticorrosion structure.
Background technology
In order to prevent water heater liner to be corroded; what current the sector mainly adopted is in the mode installing MAGNESIUM METAL rod, owing to the activity of magnesium metal is higher, has corrosive ion (headed by chlorion) to be attracted in water; first corrode magnesium metal, thus protect metal inner tube. But magnesium rod consumes and when water quality inferiority uses less than half a year just consume totally soon, and have side effect, the magnesium ion hydroxide ion that high temperature produces near heating tube produced in magnesium rod consumption process is combined and produces magnesium hydroxide fouling on heating tube.
Currently, also useful cathode protection technology, both absorbed chlorion protection by Ti electrode as anode; but this technology still existing defects, in enamel inner container, water temperature is lower; in the good situation of water quality condition, electric conductivity is not enough, and protective current is inadequate, and the small bursting protection of enamel inner container is not in place. Protection voltage is relatively big, protective current is big, it is easy to causes electrolysis thus causes interior courage hydrogenation, even produces chlorine and oxygen, the detrimentally affect such as courage corrosion in power-off postemphasis.
Summary of the invention
Instant invention overcomes shortcoming of the prior art; provide in a kind of water heater liner two kinds of anodes with the use of anticorrosion structure; both chloride ion corrosion had been overcome; also overcome water body temperature lower; in the good situation of water quality condition, electric conductivity is not enough, when protective current is inadequate, and the oxygen corrosion that in water body, dissolved oxygen produces; even if ensure that enamel inner container of electric water heater has atomic little breaking at enamel, exposed metal inner tube also can not be corroded.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
In water heater liner two kinds of anodes with the use of anticorrosion structure, comprise electronics anode, power supply, metal inner tube and heating tube, described electronics anode also connects with positive source, described metal inner tube and power cathode connect, described metal inner tube and power cathode connect, described electronics anode, heating tube and metal inner tube insulation connect admittedly, and described Ti electrode and Graphite Electrodes conductive phase continuous cropping are electronics anode.
Further, described electronics anode is fixed on metal inner tube inside by plastic injection piece sealing.
Further, described electronics anode also comprises nut, and described Ti electrode connects admittedly through Graphite Electrodes and metal inner tube insulation, and described Graphite Electrodes is fixed by nut and Ti electrode.
Further, described Ti electrode has been got on the bus screw thread, and part screw thread is injection-moulded in insulating plastics moulding.
Further, described Graphite Electrodes and water body contact area are not less than 10cm2��
Further, the constant voltage power supply of 2-3V is led between described negative electrode and electronics anode.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention adds Graphite Electrodes on anode; with Ti electrode with the use of; add the conductive area of anode on the one hand; increase protective current and improve above-mentioned small bursting protection situation not in place; on the other hand, Ti electrode activity is higher, it may also be useful to greatly slow down graphite electrode consumption speed in process; Graphite Electrodes is created provide protection again by Ti electrode simultaneously, and both complement each other.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention, in the accompanying drawings:
Fig. 1 be in water heater liner of the present invention two kinds of anodes with the use of the structural representation of anticorrosion structure;
Fig. 2 is the nut structure schematic diagram of the embodiment of the present invention 1;
Fig. 3 is the negative electrode nut sectional view of embodiment 1;
Fig. 4 is that sewage draining exit installs electronics anode sectional view;
Fig. 5 is that electronics anode sectional view installed by heating tube compass;
Fig. 6 is that electronics anode vertical view installed by heating tube compass;
Fig. 7 is that sewage draining exit and heating tube compass electronics anode install mode schematic diagram.
In figure, 1 Ti electrode; 2 Graphite Electrodess;
3 metal inner tubes; 4 heating tubes;
5 plastic injection pieces; 6 sealing-rings;
7 plastic nuts; 8 blowdown nuts;
9 negative electrode nuts; 10 compass;
11 cylindrical surface nuts; 12 firmwares;
13 open holess; 14 set screw nuts;
15 heating tube terminal studs; 16 heating tube temperature control open holess;
17 negative electrode connector lugs.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, it will be appreciated that preferred embodiment described herein, only for instruction and explanation of the present invention, is not intended to limit the present invention.
As shown in Figures 1 to 7, in water heater liner of the present invention two kinds of anodes with the use of anticorrosion structure, comprise Ti electrode 1, Graphite Electrodes 2, power supply, metal inner tube 3, heating tube 4, Ti electrode 1 and Graphite Electrodes 2 conductive phase continuous cropping are electronics anode, metal inner tube 3 is as galvanic protection object, it is inner that electronics anode is fixed on metal inner tube 3 by plastic injection piece 5 sealing, and insulate with metal inner tube 3, sealing-ring 6 it is provided with between plastic injection piece 5 and metal inner tube 3, electronics anode and positive source connect, metal inner tube 3 and power cathode connect, heating tube 4, electronics anode and metal inner tube 3 insulate and admittedly connect. voltage of supply adopts the constant voltage power supply of 2-3V.
Ti electrode 1 has been got on the bus screw thread, and part screw thread is injection-moulded in insulating plastics moulding 5 li. Ti electrode 1 is through Graphite Electrodes 2, and both conduct electricity connected, and Graphite Electrodes 2 is fixed on Ti electrode 1 by plastic nut 7 and prevents from dropping. Ti electrode 1 is insulated by insulating plastics moulding 5 and metal inner tube 3 with Graphite Electrodes 2.
Electronics anode use-pattern:
1. Ti electrode 1 and Graphite Electrodes 2 conductive phase continuous cropping are electronics anode, and graphite increases anode conducting area, and Ti electrode 1 activity is higher, and opposing protection Graphite Electrodes 2 consumes. Graphite Electrodes 2 and water body contact area are not less than 10cm2Metal inner tube 3 is as negative electrode.
2. leading to the constant voltage power supply of 2-3V between negative electrode Heyang pole, electronics anode connects positive pole, and metal inner tube 3 negative electrode connects negative pole, is insulated by high-temperature insulation plastic injection piece 5 between electronics anode and metal inner tube 3.
3. consulting Fig. 2 to Fig. 7, this electronic anode structure is simply small and exquisite, takies space little, it is possible to sealing is arranged on heating tube compass 9 with on heating tube compass 9.
4. this structure is applicable to electric water heater, solar water heater and Teat pump boiler etc., metal inner tube 3 type comprises the metal inner tube such as stainless steel inner container, enamel inner container, enamel inner container within 100L capacity can with an electronics anode, and in 100-200L, courage uses two electronics anodes.
Embodiment 1:
The sewage draining exit of water-heater installs electronics anode
Consulting Fig. 2 to 4, attack screw thread in the boring of conventional metals blowdown nut 8, screw thread is consistent with high-temperature insulation plastic injection piece 5, and electronics anode and blowdown nut 8 are integrated by screw thread, and blowdown nut 8 welds connector lug, and blowdown nut 8 is connected with sewage draining exit conduction. Negative electrode nut 9 is contacted as galvanic protection object with metal inner tube 3 conduction by screw thread, and negative electrode nut 9 connects negative electrode connector lug 17.
Embodiment 2
Electronics anode installed by heating tube compass 9
Consult Fig. 5,6, this installation mode first bores circular hole on compass 10, welding cylindrical face nut 11 in circular hole, compass 10 is screwed electronics anode by cylindrical surface nut 11, electronics anode connects positive pole, and set screw nut 14 connects negative pole as negative electrode, and heating tube compass 10 is provided with firmware 12, heating tube compass 10 is fixed on water-heater by the open holes 13 on firmware 12 and set screw nut 14, and compass 10 is also provided with heating tube terminal stud 15 and heating tube temperature control open holes 16.
Fig. 7 is the structural representation that electronics anode all installed by sewage draining exit and heating tube compass 10.
Finally it is noted that these are only the preferred embodiments of the present invention; it is not limited to the present invention; although with reference to embodiment to invention has been detailed description; for a person skilled in the art; technical scheme described in foregoing embodiments still can be modified by it; or wherein part technology feature is carried out equivalent replacement; but it is within the spirit and principles in the present invention all; any amendment of being done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. in water heater liner two kinds of anodes with the use of anticorrosion structure, it is characterized in that: comprise electronics anode, power supply, metal inner tube and heating tube, described electronics anode also connects with positive source, described metal inner tube and power cathode connect, described metal inner tube and power cathode connect, described electronics anode, heating tube and metal inner tube insulation connect admittedly, and described Ti electrode and Graphite Electrodes conductive phase continuous cropping are electronics anode.
2. according to claim 1 in water heater liner two kinds of anodes with the use of anticorrosion structure, it is characterised in that: described electronics anode is fixed on metal inner tube inside by plastic injection piece sealing.
3. according to claim 2 in water heater liner two kinds of anodes with the use of anticorrosion structure, it is characterized in that: described electronics anode also comprises nut, described Ti electrode connects admittedly through Graphite Electrodes and metal inner tube insulation, and described Graphite Electrodes is fixed by nut and Ti electrode.
4. according to claim 1 in water heater liner two kinds of anodes with the use of anticorrosion structure, it is characterised in that: described Ti electrode has been got on the bus screw thread, and part screw thread is injection-moulded in insulating plastics moulding.
5. according to claim 1 in water heater liner two kinds of anodes with the use of anticorrosion structure, it is characterised in that: described Graphite Electrodes and water body contact area are not less than 10cm2��
6. according to claim 1 in water heater liner two kinds of anodes with the use of anticorrosion structure, it is characterised in that: the constant voltage power supply of logical 2-3V between described negative electrode and electronics anode.
7. according to claim 1 in water heater liner two kinds of anodes with the use of anticorrosion structure, it is characterized in that: described electronics anode and blowdown nut connect admittedly, described blowdown nut connects positive source, described blowdown nut is connected with sewage draining exit conduction, negative electrode nut contacts with described metal inner tube conduction, and connects negative electrode connector lug.
8. according to claim 1 in water heater liner two kinds of anodes with the use of anticorrosion structure, it is characterised in that: water-heater arranges compass, and described compass welding cylindrical face nut, described cylindrical surface nut fixes described electronics anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151439.3A CN105627557A (en) | 2016-03-16 | 2016-03-16 | Corrosion preventing structure with two anodes used in cooperation in inner container of water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151439.3A CN105627557A (en) | 2016-03-16 | 2016-03-16 | Corrosion preventing structure with two anodes used in cooperation in inner container of water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105627557A true CN105627557A (en) | 2016-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610151439.3A Pending CN105627557A (en) | 2016-03-16 | 2016-03-16 | Corrosion preventing structure with two anodes used in cooperation in inner container of water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105627557A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115859A (en) * | 2016-08-24 | 2016-11-16 | 宝鸡隆盛有色金属有限公司 | Solar water heater water processes Ti electrode silk |
| CN108046377A (en) * | 2017-11-18 | 2018-05-18 | 杜明生 | A kind of electric double layer water technology device |
| CN110595057A (en) * | 2019-09-18 | 2019-12-20 | 珠海格力电器股份有限公司 | Anti-corrosion heating water tank |
| CN112556199A (en) * | 2020-06-25 | 2021-03-26 | 明宝能源株式会社 | Control system for electrode type boiler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304022A (en) * | 2000-01-12 | 2001-07-18 | 海尔集团公司 | Method for protecting enamel internal container of water-heater and its device |
| CN2760011Y (en) * | 2005-01-13 | 2006-02-22 | 华南理工大学 | Chlorine residual removing antiseptic device for water heater inner container |
| CN202145052U (en) * | 2011-06-09 | 2012-02-15 | 广东万和新电气股份有限公司 | Water-storage hot water supply device with anti-corrosion device |
| JP2013122340A (en) * | 2011-12-12 | 2013-06-20 | Hitachi Appliances Inc | Hot water storage tank and heat pump type hot water supply machine |
| CN103512187A (en) * | 2012-06-20 | 2014-01-15 | 何刚 | Electronic anticorrosion system of electric water heater |
| CN205807806U (en) * | 2016-03-16 | 2016-12-14 | 中山市前华五金制品有限公司 | In water heater liner two kinds of anodes with the use of anticorrosion structure |
-
2016
- 2016-03-16 CN CN201610151439.3A patent/CN105627557A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304022A (en) * | 2000-01-12 | 2001-07-18 | 海尔集团公司 | Method for protecting enamel internal container of water-heater and its device |
| CN2760011Y (en) * | 2005-01-13 | 2006-02-22 | 华南理工大学 | Chlorine residual removing antiseptic device for water heater inner container |
| CN202145052U (en) * | 2011-06-09 | 2012-02-15 | 广东万和新电气股份有限公司 | Water-storage hot water supply device with anti-corrosion device |
| JP2013122340A (en) * | 2011-12-12 | 2013-06-20 | Hitachi Appliances Inc | Hot water storage tank and heat pump type hot water supply machine |
| CN103512187A (en) * | 2012-06-20 | 2014-01-15 | 何刚 | Electronic anticorrosion system of electric water heater |
| CN205807806U (en) * | 2016-03-16 | 2016-12-14 | 中山市前华五金制品有限公司 | In water heater liner two kinds of anodes with the use of anticorrosion structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115859A (en) * | 2016-08-24 | 2016-11-16 | 宝鸡隆盛有色金属有限公司 | Solar water heater water processes Ti electrode silk |
| CN108046377A (en) * | 2017-11-18 | 2018-05-18 | 杜明生 | A kind of electric double layer water technology device |
| CN110595057A (en) * | 2019-09-18 | 2019-12-20 | 珠海格力电器股份有限公司 | Anti-corrosion heating water tank |
| CN112556199A (en) * | 2020-06-25 | 2021-03-26 | 明宝能源株式会社 | Control system for electrode type boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170908 Address after: Two building, A4 building, 25 science and technology innovation center, 511458 South Central Road, Guangzhou, Guangdong, Nansha District, China Applicant after: He Gang Address before: 528427 No. 529, No. 15, South East Road, Zhongshan, Guangdong, Nantou Applicant before: ZHONGSHAN QIANHUA HARDWARE PRODUCTS CO., LTD. Applicant before: He Gang |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |
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| RJ01 | Rejection of invention patent application after publication |