CN106949777A - The locating connector and method of PTFE heat exchanger tubes in a kind of heat exchanger - Google Patents
The locating connector and method of PTFE heat exchanger tubes in a kind of heat exchanger Download PDFInfo
- Publication number
- CN106949777A CN106949777A CN201710293202.3A CN201710293202A CN106949777A CN 106949777 A CN106949777 A CN 106949777A CN 201710293202 A CN201710293202 A CN 201710293202A CN 106949777 A CN106949777 A CN 106949777A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- ptfe
- installing plate
- supporting plate
- exchanger tubes
- 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
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 76
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000007769 metal material Substances 0.000 claims abstract description 13
- 239000012943 hotmelt Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000004831 Hot glue Substances 0.000 claims description 3
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920009441 perflouroethylene propylene Polymers 0.000 description 2
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000926 A-3 tool steel Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/162—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using bonding or sealing substances, e.g. adhesives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of locating connector of PTFE heat exchanger tubes in heat exchanger and method, including card and the PTFE heat exchanger tubes being connected on card, including card and the PTFE heat exchanger tubes being connected on card, described card includes supporting plate and installing plate, installing plate is PTFE material and is located between supporting plate, several mounting holes are offered on installing plate, it is connected by hot melt in the end insertion mounting hole of PTFE heat exchanger tubes and with hole wall, installing plate is respectively equipped with contiguous block on two ends, and be connected to a fixed by the supporting plate of contiguous block and respective end, supporting plate is metal material, its Surface coating has etch resistant material layer.The present invention can realize effective connection of the PTFE heat exchanger tubes in heat exchanger.
Description
Technical field
The present invention relates to PTFE heat exchanger technologies, more specifically to a kind of positioning of PTFE heat exchanger tubes in heat exchanger
Attachment means and method.
Background technology
PTFE (polytetrafluoroethylene (PTFE)) tubing has excellent high-low temperature resistant characteristic, can be grown under conditions of -190~260 DEG C
Phase uses.PTFE material has good chemical stability, and only performance can change under fluorine steam, alkali metal under high temperature, right
Other all dense, dilute inorganic Organic Acid and Bases, ester do not react.Low surface friction coefficient, water repellent is refused inside and outside dirt, tube wall
Not incrustation.It is nontoxic, the features such as nonflammable, with the high grade of transparency, it is widely used in fluoroplastics heat exchanger, heat steam pipe arrangement etc.
Field, tool has been widely used.
Therefore the heat exchanger run under the stronger environment of corrosivity, its inside is general to be all made of PTFE heat exchanger tubes, so
And, as high performance plastics, PTFE material can not melting extrusion, because the property of material also is difficult to other materials (such as
Metal material) mutually splicing or very high intensity is kept during slitless connection.At present, metal in PTFE heat exchanger tubes and heat exchanger is spent
The connected mode commonly used between plate is as shown in figure 1, there is provided a few road grooves 3, are incited somebody to action on the inwall of mounting hole 2 of metal card 1
After PTFE heat exchanger tubes 4 are put into mounting hole 2, by the way of being expanded in PTFE heat exchanger tubes 4, by the tube wall of PTFE heat exchanger tubes 4
Outwardly against to being attached in groove 3, because metal card 1 and PTFE heat exchanger tubes 4 are two kinds of unlike materials, there is heat expansion
During shrinkage phenomenon, its internal particle (atom) motion is different, therefore the amplitude expanded with heat and contract with cold of two kinds of materials is also different, therefore
After phenomenon of expanding with heat and contract with cold is repeated multiple times, makes easily to come off between metal card 1 and PTFE heat exchanger tubes 4, cause heat exchanger failure, no
It can for a long time be operated, need to periodically be safeguarded.
The content of the invention
For drawbacks described above present in prior art, it is an object of the invention to provide PTFE heat exchanger tubes in a kind of heat exchanger
Locating connector and method, effective connection of the PTFE heat exchanger tubes in heat exchanger can be realized.
To achieve the above object, the present invention is adopted the following technical scheme that：
On the one hand, in a kind of heat exchanger PTFE heat exchanger tubes locating connector, including card and be connected on card
PTFE heat exchanger tubes, described card includes supporting plate and installing plate, and installing plate is PTFE material and is located between supporting plate, is installed
Offer in several mounting holes, the end insertion mounting hole of PTFE heat exchanger tubes and be connected by hot melt with hole wall on plate, pacified
Dress plate is respectively equipped with contiguous block on two ends, and is connected to a fixed by the supporting plate of contiguous block and respective end, and supporting plate is metal
Material, its Surface coating has etch resistant material layer.
Described installing plate two ends are respectively erected in supporting plate, and contiguous block one end bottom has a ledge structure, and leads to
Cross ledge structure to be pressed on the corresponding end of installing plate, the other end is fixedly connected on the supporting plate by fastening bolt.
Sealing ring is equipped with the installing plate and the contact surface of supporting plate, on the contact surface of installing plate and contiguous block.
The contiguous block is metal material.
The sealing ring is fluorubber material.
The hot melt wlding of pipe sleeve shape is additionally provided between the mounting hole of the PTFE heat exchanger tubes and installing plate.
The hot melt wlding is FEP, PFA or ETFE.
The etch resistant material layer is PTFE film.
Also horizontal interval is disposed with several metal reinforcings in described installing plate.
On the other hand, in a kind of heat exchanger PTFE heat exchanger tubes the method that is located by connecting, by the card of heat exchanger be designed as by
The installing plate of the supporting plate of metal material and PTFE material is constituted, in one layer of PTFE film of supporting plate Surface coating, on a mounting board
Longitudinal direction opens up several mounting holes, is disposed with several metal reinforcings in installing plate inner horizontal, installing plate is erected at into supporting plate
Between, the ledge structure being had using contiguous block and by its one end bottom is pressed on the corresponding end of installing plate, will be connected
The block other end is fixedly connected on the supporting plate by fastening bolt, installing plate two ends is separately fixed in supporting plate, by PTFE
In the end insertion mounting hole of heat exchanger tube, and it is fixed on by hot-melt adhesive paste in mounting hole, in contact of the installing plate with supporting plate
The sealing ring of fluorubber is respectively provided with face, on the contact surface of installing plate and contiguous block.
In above-mentioned technical scheme, the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger provided by the present invention
And method, the composition structure of original metal card is improved, makes to carry out using identical material between card and PTFE heat exchanger tubes
Connection, adds the stability and reliability of attachment structure.The heat exchanger under such as high temperature, high corrosion operating mode can be efficiently applied to
PTFE heat exchanger tubes and card between be tightly connected, be not only able to cost-effective, but also greatly improve sealing intensity,
Extend the service life of equipment.
Brief description of the drawings
Fig. 1 is the structural representation of prior art connected mode；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is the amplification view at a positions in Fig. 2；
Fig. 4 is the schematic diagram of installing plate in the present invention；
Fig. 5 is the schematic diagram of briquetting in the present invention.
Fig. 6 is the schematic diagram between PTFE heat exchanger tubes and mounting hole using hot melt wlding connection in the present invention.
Embodiment
Technical scheme is further illustrated with reference to the accompanying drawings and examples.
Incorporated by reference to shown in Fig. 2 to Fig. 6, the dress that is located by connecting of PTFE heat exchanger tubes in a kind of heat exchanger provided by the present invention
Put, including card and the PTFE heat exchanger tubes 10 that are connected on card, above-mentioned is prior art part, is just repeated no more herein.With
Unlike prior art, described card includes supporting plate 11 and installing plate 12, and installing plate 12 is PTFE material and is located at branch
Between fagging 11, offered on installing plate 12 in several mounting holes 121, the end insertion mounting hole 121 of PTFE heat exchanger tubes 10 simultaneously
It is connected by the hole wall heated with mounting hole 121, installing plate 12 is respectively equipped with contiguous block 15 on two ends, and passes through contiguous block
15 are connected to a fixed with the supporting plate 11 of respective end, and supporting plate 11 is metal material, and its Surface coating has etch resistant material layer
111, one piece of card being made up of unlike material is so far formed, for substituting original metal card, and for playing a supportive role
Supporting plate 11 can select A3 steel matter, the material relative low price, intensity can also support all PTFE heat exchanger tubes
10, the installing plate 12 of PTFE heat exchanger tubes 10 is connected to install then from the PTFE material with the phase same material of PTFE heat exchanger tubes 10,
Make installing plate 12 when being attached with PTFE heat exchanger tubes 10, because the fusing point of phase same material and physical characteristic all, both may be used
So that using the connection of direct hot melting way, the heat fusion joint of which is higher, can also be in installing plate 12 typically at 325 DEG C ± 10 DEG C
Mounting hole 121 in be first inserted in the hot melt wlding 5 of a pipe sleeve shape, hot melt wlding 5 is FEP, PFA or ETFE, and PTFE is exchanged heat
The end of pipe 10 is put into hot melt wlding 5, and PTFE heat exchanger tubes 10 are fastened in mounting hole 121 by heating wlding 5, the party
The heat fusion joint of formula is general at 265 DEG C ± 10 DEG C, and these connected modes are more firm than original connected mode, difficult for drop-off.
Preferably, the described two ends of installing plate 12 are respectively erected in supporting plate 11, and contiguous block 15 is towards installing plate 12
One end bottom in direction is respectively provided with a ledge structure 151, and is pressed on the corresponding end of installing plate 12 by ledge structure 151
On, another one end of contiguous block 15 is fixedly connected in supporting plate 11 by fastening bolt 16.
On the installing plate 12 and the contact surface of supporting plate 11, and installing plate 12 on the contact surface of contiguous block 15 with being all provided with
There is sealing ring 14, in order to prevent that the flue gas inside heat exchanger from leaking to the outside of heat exchanger at the gap of these link positions,
Cause the part of a part of metal material outside heat exchanger to be corroded, aggravate rate of decay, sealing ring 14 is fluorubber material,
Equally there is etch-proof function.
It is made preferably, described supporting plate 11 and contiguous block 15 can select metal material, ensure that bonding strength.
Preferably, described anti-corrosion layer 111 is PTFE film, the material Corrosion Protection is splendid.
Preferably, because the quantity of PTFE heat exchanger tubes 10 connected on installing plate 12 is more, weight is larger, prevents installing plate 12
Drawn by weight and deform or break, therefore also horizontal interval is disposed with several metal reinforcings 122 in installing plate 12.
The method that is located by connecting of PTFE heat exchanger tubes in a kind of heat exchanger provided by the present invention, by the card of PTFE heat exchangers
It is designed as being made up of the supporting plate of metal material and the installing plate of PTFE material, in one layer of PTFE film of supporting plate Surface coating, with
Prevent that the supporting plate of metal material from being corroded by flue gas, longitudinal direction opens up several mounting holes on a mounting board, in installing plate internal water
Plain cloth is equipped with several metal reinforcings, because the PTFE heat exchanger tube quantity of installation is more, weight big, using metal reinforcing to peace
Dress plate is reinforced, and installing plate is erected between supporting plate, the Step-edge Junction having using contiguous block and by its one end bottom
Structure is pressed on the corresponding end of installing plate, and the contiguous block other end is fixedly connected on the supporting plate by fastening bolt, makes peace
Dress plate two ends are separately fixed in supporting plate, and the end of PTFE heat exchanger tubes is inserted in mounting hole, and is fixed by hot-melt adhesive paste
In mounting hole, fluorubber is respectively provided with installing plate and the contact surface of supporting plate, on the contact surface of installing plate and contiguous block
Sealing ring.
In summary, the improvement that the present invention passes through structure and material to card so that the company of PTFE heat exchanger tubes and card
Connect more firm, while having anticorrosion, the function of anti-leak again, it is adaptable to the use of all heat exchangers.
Those of ordinary skill in the art it should be appreciated that the embodiment of the above be intended merely to explanation the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (10)
1. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger, including card and the PTFE heat exchange that is connected on card
Pipe, it is characterised in that described card includes supporting plate and installing plate, installing plate is PTFE material and is located between supporting plate,
Offered on installing plate in several mounting holes, the end insertion mounting hole of PTFE heat exchanger tubes and be connected solid with hole wall by hot melt
It is fixed, contiguous block is respectively equipped with installing plate two ends, and be connected to a fixed by the supporting plate of contiguous block and respective end, supporting plate is
Metal material, its Surface coating has etch resistant material layer.
2. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger as claimed in claim 1, it is characterised in that described
Installing plate two ends are respectively erected in supporting plate, and contiguous block one end bottom has a ledge structure, and is set by ledge structure pressure
On the corresponding end of installing plate, the other end is fixedly connected on the supporting plate by fastening bolt.
3. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger as claimed in claim 2, it is characterised in that described
Sealing ring is equipped with installing plate and the contact surface of supporting plate, on the contact surface of installing plate and contiguous block.
4. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger as claimed in claim 2 or claim 3, it is characterised in that institute
The contiguous block stated is metal material.
5. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger as claimed in claim 3, it is characterised in that described
Sealing ring is fluorubber material.
6. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger as claimed in claim 1, it is characterised in that described
The hot melt wlding of pipe sleeve shape is additionally provided between PTFE heat exchanger tubes and the mounting hole of installing plate.
7. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger as claimed in claim 6, it is characterised in that described
It is FEP, PFA or ETFE to heat wlding.
8. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger as claimed in claim 1, it is characterised in that described
Etch resistant material layer is PTFE film.
9. the locating connector of PTFE heat exchanger tubes in a kind of heat exchanger as claimed in claim 1, it is characterised in that described
Also horizontal interval is disposed with several metal reinforcings in installing plate.
10. a kind of method that is located by connecting of PTFE heat exchanger tubes in heat exchanger, it is characterised in that by the card of heat exchanger be designed as by
The installing plate of the supporting plate of metal material and PTFE material is constituted, in one layer of PTFE film of supporting plate Surface coating, on a mounting board
Longitudinal direction opens up several mounting holes, is disposed with several metal reinforcings in installing plate inner horizontal, installing plate is erected at into supporting plate
Between, the ledge structure being had using contiguous block and by its one end bottom is pressed on the corresponding end of installing plate, will be connected
The block other end is fixedly connected on the supporting plate by fastening bolt, installing plate two ends is separately fixed in supporting plate, by PTFE
In the end insertion mounting hole of heat exchanger tube, and it is fixed on by hot-melt adhesive paste in mounting hole, in contact of the installing plate with supporting plate
The sealing ring of fluorubber is respectively provided with face, on the contact surface of installing plate and contiguous block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293202.3A CN106949777A (en) | 2017-04-28 | 2017-04-28 | The locating connector and method of PTFE heat exchanger tubes in a kind of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293202.3A CN106949777A (en) | 2017-04-28 | 2017-04-28 | The locating connector and method of PTFE heat exchanger tubes in a kind of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106949777A true CN106949777A (en) | 2017-07-14 |
Family
ID=59477032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293202.3A Pending CN106949777A (en) | 2017-04-28 | 2017-04-28 | The locating connector and method of PTFE heat exchanger tubes in a kind of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106949777A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834930A (en) * | 1986-04-28 | 1989-05-30 | Akzo N.V. | Method for the manufacture of apparatus for the transfer of heat and/or mass |
| CN201387260Y (en) * | 2009-03-03 | 2010-01-20 | 泰安盛通化工设备有限公司 | High-efficient energy-saving polytetrafluoroethylene tube type heat exchanger |
| CN102564207A (en) * | 2012-01-16 | 2012-07-11 | 黄争鸣 | Heat-insulating and corrosion-resisting composite tube plate and connecting structure between heat-insulating and corrosion-resisting composite tube plate and heat exchange tube |
| CN102689437A (en) * | 2012-04-17 | 2012-09-26 | 东阳市四达氟塑有限公司 | Device and method for sintering pipe plate of fluoroplastic heat-exchangerp |
| CN203744770U (en) * | 2014-03-01 | 2014-07-30 | 瑞冬集团有限公司 | Anti-corrosion shell-tube heat exchanger |
| CN106546120A (en) * | 2017-01-23 | 2017-03-29 | 上海金由氟材料股份有限公司 | A kind of interior cladding fastening seal structure of fluoroplastics pipe heat exchanger |
-
2017
- 2017-04-28 CN CN201710293202.3A patent/CN106949777A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834930A (en) * | 1986-04-28 | 1989-05-30 | Akzo N.V. | Method for the manufacture of apparatus for the transfer of heat and/or mass |
| CN201387260Y (en) * | 2009-03-03 | 2010-01-20 | 泰安盛通化工设备有限公司 | High-efficient energy-saving polytetrafluoroethylene tube type heat exchanger |
| CN102564207A (en) * | 2012-01-16 | 2012-07-11 | 黄争鸣 | Heat-insulating and corrosion-resisting composite tube plate and connecting structure between heat-insulating and corrosion-resisting composite tube plate and heat exchange tube |
| CN102689437A (en) * | 2012-04-17 | 2012-09-26 | 东阳市四达氟塑有限公司 | Device and method for sintering pipe plate of fluoroplastic heat-exchangerp |
| CN203744770U (en) * | 2014-03-01 | 2014-07-30 | 瑞冬集团有限公司 | Anti-corrosion shell-tube heat exchanger |
| CN106546120A (en) * | 2017-01-23 | 2017-03-29 | 上海金由氟材料股份有限公司 | A kind of interior cladding fastening seal structure of fluoroplastics pipe heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| 吴国贞等: "《塑料在化学工业中应用》", 31 August 1985, 化学工业出版社 * |
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| 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 | ||
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Application publication date: 20170714 |