CN104847981A - Connecting apparatus of dual-wall high-pressure gas pipelines - Google Patents
Connecting apparatus of dual-wall high-pressure gas pipelines Download PDFInfo
- Publication number
- CN104847981A CN104847981A CN201510321255.2A CN201510321255A CN104847981A CN 104847981 A CN104847981 A CN 104847981A CN 201510321255 A CN201510321255 A CN 201510321255A CN 104847981 A CN104847981 A CN 104847981A
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- CN
- China
- Prior art keywords
- flange
- dual
- rear venting
- seal ring
- front ventilation
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/04—Flanged joints the flanges being connected by members tensioned in the radial plane
- F16L23/08—Flanged joints the flanges being connected by members tensioned in the radial plane connection by tangentially arranged pin and nut
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/12—Flanged joints specially adapted for particular pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to a connecting apparatus of dual-wall high-pressure gas pipelines. The connecting apparatus comprises a front ventilation flange, a rear ventilation flange, a pair of huff type cutting sleeves, a T-shaped sealing ring, an inner sealing ring, and an outer sealing ring. Inner holes are formed in the centers of the front ventilation flange and the rear ventilation flange along the axial directions; and a plurality of outer holes are formed by encircling the inner holes along the axial direction. The huff type cutting sleeves enable the front ventilation flange and the rear ventilation flange that are in a butt joint mode to be held tightly by bolts and nuts to form an integrated structure with an inner tube and outer tubes. The inner hole of the front ventilation flange and the inner hole of the rear ventilation flange are connected to form an inner tube for conveying a main medium; and the outer holes of the front ventilation flange and the outer holes of the rear ventilation flange are connected to form outer tubes for conveying auxiliary mediums. The provided connecting apparatus having advantages of small size, convenient installation, and high connection safety and reliability and the like can be applied to fields of natural gas extraction and conveying, chemical industry, shipping industry, and aerospace and the like and can be used for realizing connection of dual-wall high-pressure gas pipelines for conveying high-pressure combustible gas or hazardous gas indoors or in an environment with poor ventilation.
Description
Technical field
The present invention relates to the assembling pipe joint for high pressure inflammable gas under indoor or the poor environment that ventilates or toxic and harmful conveying, particularly a kind of connection set of dual-layer wall high-pressure gas pipelines, belongs to chemical technology field.
Background technique
Along with the development of international trade and Shipping, be that the toxic emission of the boat diesel engine of fuel is more and more serious to the pollution of current environment with petroleum products, in order to realize energy-saving and emission-reduction, duel fuel engine technology obtains increasing concern.Marine low speed duel fuel engine refers to and fuel oil (diesel oil/heavy oil) not only can be used as fuel, combustion gas (rock gas) also can be adopted as the marine main engine of fuel simultaneously.
For the duel fuel engine adopting Diesel circulation, its combustion gas adopted is high-pressure natural gas (30MPa), exports high-pressure natural gas, burnt by Cemented filling to duel fuel engine by marine auxiliary system.According to classification society rule, this type of high-pressure natural gas conveyance conduit must adopt double-wall structure, interior pipe conveying high-pressure rock gas, and outer tube carries out forced ventilation, and ventilated port place is provided with hydrocarbon substrate concentration sensor, whether there is gas leakage for Real-Time Monitoring pipeline.
The various ways such as the Placement of dual-layer wall pipeline can adopt welding, Flange joint, be threaded, wherein welding manner is the most reliable, but considers the installation of pipeline and open and inspect, and must add dismountable Placement such as flange or screw thread.Owing to being conveying high-pressure rock gas, the requirement therefore for the position that removably connects is necessary zero leakage, and therefore Flange joint is more extensive relative to the application that is threaded.
For the high pressure welding neckflange of routine, pipeline pressure higher grade, then flange outer diameter is larger, and flange is thicker, and connecting bolt number is more; In addition, due to conveyance conduit employing is double-wall structure, therefore the combined type outer tube case that can open and inspect must be increased in interior pipe high pressure welding neckflange joint, for connecting outer tube, this outer tube case need form seal space, prevent issuable interior pipe pressurized gas from revealing the situation being diffused into space outerpace, this outer tube case also must have enough thickness and intensity simultaneously, and the pressurized gas being enough to cause when resisting interior pipe local damage impact.
Adopt the split type linkage structure of this inner and outer pipe, direct result be exactly pipeline junction volume large, from great, sealing surface is many, cause that joint is high to spatial requirement, connection reliability is low, easily reveal combustion gas, install and open and inspect also inconvenient.
Summary of the invention
Technical problem to be solved by this invention be overcome existing pressurized gas double wall pipe Placement volume large, to install and repair and maintenance are opened and inspect inconvenience, be there is the deficiencies such as disclosure risk, the connection set of the dual-layer wall high-pressure gas pipelines of a kind of inner and outer pipe one is provided, formula structure is integrally connected by adopting inner and outer pipes, make the structure of connection set more compact, improve structural strength, reduce volume, reduce sealing surface, reach and increase connection reliability, reduction installation difficulty and the object such as requirements of installation space, raising operating efficiency.
Based on above-mentioned purpose, technological scheme provided by the invention is as follows:
A kind of connection set of dual-layer wall high-pressure gas pipelines, it comprises front ventilation flange, rear venting flange, a pair Hafu-type cutting ferrule, T-shaped seal ring, inner seal ring and exterior seal ring, the center of described front ventilation flange and rear venting flange is provided with endoporus vertically, multiple exit orifice are vertically provided with around this endoporus, ventilate before after being docked by interface flange and rear venting flange to be held tightly by bolt and nut and are formed inner and outer pipes integral structure by described a pair Hafu-type cutting ferrule, the endoporus of described front ventilation flange is communicated with the interior pipe being formed and carry main medium with the endoporus of rear venting flange, the exit orifice of described front ventilation flange is communicated with the exit orifice of rear venting flange the outer tube being formed and carry secondary medium.
Further, the center of the interface of described rear venting flange is provided with the central channel around described endoporus, be arranged in this central channel, between the periphery that this inner seal ring is nested in described T-shaped seal ring and the cell wall of described central channel in order to the T-shaped seal ring that seals described main medium and inner seal ring.
Further, the interface of described rear venting flange is provided with the seal groove surrounding described exit orifice, is embedded in sealing groove in order to the exterior seal ring sealed described secondary medium.
Further, described front ventilation flange is provided with the several positioning holes be evenly arranged in ring week, described rear venting flange is provided with two positioning pin holes be symmetrically distributed on ring week, described two positioning pin holes are connected from different positioning holes by two locating studs, realize described front ventilation flange to dock with the location of rear venting flange at diverse location, guarantee that the described exit orifice of front ventilation flange and the exit orifice of rear venting flange accurately align.
Further, described front ventilation flange and the periphery of rear venting flange are provided with male cone (strobilus masculinus), and the inwall of described a pair Hafu-type cutting ferrule is provided with closely card and joins the inner conical surface of this male cone (strobilus masculinus).
Further, described front ventilation flange and the outside of rear venting flange are provided with interior pipe extension part and outer tube extension, this outer tube extension is shorter than described interior pipe extension part, and the end of described interior pipe extension part and outer tube extension is provided with the groove for welding with outside dual-layer wall pipeline.
Further, described main medium is high pressure inflammable gas or toxic and harmful, and described secondary medium is for force ventilated inert protective gas or air.
Compared with existing pressurized gas double wall pipe connection set, the present invention has following advantages:
1, compact structure, disclosure risk is low---inner and outer pipes integrated device, compact structure, reliability improves greatly; Simultaneously, pipe adopts T-shaped seal ring seal, and outer tube adopts seal ring sealing, and good seal performance, reduces disclosure risk.
2, easy for installation, volume is little---and package unit parts only have altogether 9 kinds, only need a few step can complete the reliable connection of double wall pipe, and volume and installing space at least reduce half relative to existing pressurized gas double wall pipe connection set simultaneously.
3, connection reliability is high, and it is convenient to install---and by central channel, T-shaped seal ring is installed, prevents seal ring in installation process from dropping out or losing; Interior pipe high-pressure gas pressure is larger, and sealing surface laminating is tighter, and T-shaped seal ring seal effect is better; The setting of multiple positioning hole, guarantees that ventilation flange exit orifice high-efficient simple aligns; A pair Hafu-type cutting ferrule makes described connection set integrity higher, removes and installs during convenient maintenance simultaneously.
Accompanying drawing explanation
Fig. 1 is the explosive view of structure of the present invention.
Fig. 2 is sectional arrangement drawing of the present invention.
Fig. 3 is the erection drawing of the T-shaped seal ring of the present invention and inner seal ring.
Fig. 4 is the outline drawing of ventilation flange and rear venting flange before the present invention.
Fig. 5 is outline drawing of the present invention.
In figure,
1-front ventilation flange, 11-forward flange endoporus, 12-forward flange exit orifice, 13-positioning hole,
14-outer tube extension, 2-rear venting flange, 21-rear flange endoporus, 22-rear flange exit orifice,
23-positioning pin hole, 24-interior pipe extension part, 25-seal groove, 26-central channel,
3-Hafu-type cutting ferrule, 4-T-shaped seal ring, 41-inner seal ring groove, 5-inner seal ring,
6-exterior seal ring, 7-locating stud, 8-bolt, 9-nut.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
Refer to Fig. 1, the connection set of diagram dual-layer wall high-pressure gas pipelines is connected in dual-layer wall high-pressure gas pipelines, comprises front ventilation flange 1, rear venting flange 2, a pair Hafu-type cutting ferrule 3, T-shaped seal ring 4, inner seal ring 5 and exterior seal ring 6.
Refer to Fig. 4, described front ventilation flange 1 is provided with forward flange endoporus 11 vertically, and the surrounding around this forward flange endoporus 11 is provided with multiple forward flange exit orifice 12 vertically; Described rear venting flange 2 is provided with rear flange endoporus 21 vertically, and the surrounding around this rear flange endoporus 21 is provided with multiple rear flange exit orifice 22 vertically; Described front ventilation flange 1 is docked by interface with rear venting flange 2.Refer to Fig. 1, the flange 1 that ventilates before after docking to be held tightly with rear venting flange 2 by bolt 8 and nut 9 and is formed inner and outer pipes integral structure by described a pair Hafu-type cutting ferrule 3, refer to Fig. 2, described front ventilation flange 1 and the periphery of rear venting flange 2 are provided with male cone (strobilus masculinus), the inwall of described a pair Hafu-type cutting ferrule 3 is provided with inner conical surface, joined by the tight card of this inner conical surface and male cone (strobilus masculinus), make rear venting flange, rear venting flange and a pair Hafu-type cutting ferrule 3 closely form compact rigid unitary.After described front ventilation flange 1 docks with rear venting flange 2, refer to Fig. 2, described forward flange endoporus 11 is communicated with rear flange endoporus 21, and form the interior pipe of the main medium of conveying, this main medium is high pressure inflammable gas or toxic and harmful; Described forward flange exit orifice 12 is communicated with rear flange exit orifice 22 outer tube being formed and carry secondary medium, and this secondary medium is for force ventilated inert protective gas or air.
Refer to Fig. 4, described front ventilation flange 1 is provided with the several positioning holes 13 be evenly arranged in ring week, described rear venting flange 2 is provided with two positioning pin holes 23 be symmetrically distributed on ring week, described two positioning pin holes 23 are connected from different positioning holes 13 by two locating studs 7, realize described front ventilation flange 1 to dock with the location of rear venting flange 2 at diverse location, guarantee accurately aligning of described forward flange exit orifice 12 and rear flange exit orifice 22, see Fig. 2.
The center of the interface of described rear venting flange 2 is provided with the central channel 26 around described rear flange endoporus 21, refer to Fig. 3, described T-shaped seal ring 4 and inner seal ring 5 are in order to seal described main medium, they are arranged in described central channel 26 together, the periphery of described T-shaped seal ring 4 is provided with inner seal ring groove 41, described inner seal ring 5 is nested in this inner seal ring groove 41, and between the periphery and the cell wall of described central channel 26 of described T-shaped seal ring 4.
The interface of described rear venting flange 2 is provided with the seal groove 25 surrounding described rear flange exit orifice 22, and described exterior seal ring 6 is in order to seal described secondary medium, and it is embedded in sealing groove 25.
Refer to Fig. 2, described front ventilation flange 1 and the outside of rear venting flange 2 are provided with interior pipe extension part 24 and outer tube extension 14, this outer tube extension 14 is shorter than described interior pipe extension part 24, and the end of described interior pipe extension part 24 and outer tube extension 14 is provided with the groove for welding with outside dual-layer wall pipeline.
The installation method of connection set of the present invention is as follows:
First front ventilation flange 1 being welded with pipe in the dual-layer wall needing to be connected respectively with pipe extension part 24 in rear venting flange 2, then front ventilation flange 1 being welded with needing the outer tube of the double wall pipe be connected respectively with the outer tube extension 14 of rear venting flange 2.
After the test such as weld dressing and flaw detection completes, first inner seal ring 5 is enclosed within the inner seal ring groove 41 of T-shaped seal ring 4 periphery, then load together in the central channel 26 of rear venting flange 2, again exterior seal ring 6 is loaded in the seal groove 25 of rear venting flange 2, locating stud 7 is loaded in the positioning pin hole 23 of rear venting flange 2 simultaneously, the setting angle of ventilation flange 1 before adjustment, two locating studs 7 are made to connect in suitable positioning hole 13, guarantee accurately aligning of described forward flange exit orifice 12 and rear flange exit orifice 22, complete the mounted in pairing mode of front ventilation flange 1 and rear venting flange 2.
Finally be coated with lubricating grease at a pair Hafu-type cutting ferrule 3 with front ventilation flange 1 and contacting on the conical surface of rear venting flange 2, a pair Hafu-type cutting ferrule 3 is installed and in order and torque demand to tight a bolt successively 8 and nut 9, thus complete the installation of described device, see Fig. 5.
All equivalences made according to the content of this specification change and amendment, all belong to the technical scope of patent application of the present invention; The protection domain of application claims is not limited only to above-described embodiment, also should comprise other and this be invented to apparent conversion and replacement scheme.
Claims (7)
1. the connection set of a dual-layer wall high-pressure gas pipelines, it is characterized in that: described connection set comprises front ventilation flange, rear venting flange, a pair Hafu-type cutting ferrule, T-shaped seal ring, inner seal ring and exterior seal ring, the center of described front ventilation flange and rear venting flange is provided with endoporus vertically, multiple exit orifice are vertically provided with around this endoporus, ventilate before after being docked by interface flange and rear venting flange to be held tightly by bolt and nut and are formed inner and outer pipes integral structure by described a pair Hafu-type cutting ferrule, the endoporus of described front ventilation flange is communicated with the interior pipe being formed and carry main medium with the endoporus of rear venting flange, the exit orifice of described front ventilation flange is communicated with the exit orifice of rear venting flange the outer tube being formed and carry secondary medium.
2. the connection set of dual-layer wall high-pressure gas pipelines as claimed in claim 1, it is characterized in that: the center of the interface of described rear venting flange is provided with the central channel around described endoporus, be arranged in this central channel, between the periphery that this inner seal ring is nested in described T-shaped seal ring and the cell wall of described central channel in order to the T-shaped seal ring that seals described main medium and inner seal ring.
3. the connection set of dual-layer wall high-pressure gas pipelines as claimed in claim 2, it is characterized in that: on the interface of described rear venting flange, be provided with the seal groove surrounding described exit orifice, be embedded in sealing groove in order to the exterior seal ring sealed described secondary medium.
4. the connection set of the dual-layer wall high-pressure gas pipelines as described in claim 1,2 or 3, it is characterized in that: described front ventilation flange is provided with the several positioning holes be evenly arranged in ring week, described rear venting flange is provided with two positioning pin holes be symmetrically distributed on ring week, described two positioning pin holes are connected from different positioning holes by two locating studs, realize described front ventilation flange to dock with the location of rear venting flange at diverse location, guarantee that the described exit orifice of front ventilation flange and the exit orifice of rear venting flange accurately align.
5. the connection set of the dual-layer wall high-pressure gas pipelines as described in claim 1,2 or 3, it is characterized in that: described front ventilation flange and the periphery of rear venting flange are provided with male cone (strobilus masculinus), the inwall of described a pair Hafu-type cutting ferrule is provided with closely card and joins the inner conical surface of this male cone (strobilus masculinus).
6. the connection set of the dual-layer wall high-pressure gas pipelines as described in claim 1,2 or 3, it is characterized in that: described front ventilation flange and the outside of rear venting flange are provided with interior pipe extension part and outer tube extension, this outer tube extension is shorter than described interior pipe extension part, and the end of described outer tube extension and interior pipe extension part is provided with the groove for welding with outside dual-layer wall pipeline.
7. the connection set of dual-layer wall high-pressure gas pipelines as claimed in claim 1, it is characterized in that: described main medium is high pressure inflammable gas or toxic and harmful, described secondary medium is for force ventilated inert protective gas or air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510321255.2A CN104847981A (en) | 2015-06-12 | 2015-06-12 | Connecting apparatus of dual-wall high-pressure gas pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510321255.2A CN104847981A (en) | 2015-06-12 | 2015-06-12 | Connecting apparatus of dual-wall high-pressure gas pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104847981A true CN104847981A (en) | 2015-08-19 |
Family
ID=53847842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510321255.2A Pending CN104847981A (en) | 2015-06-12 | 2015-06-12 | Connecting apparatus of dual-wall high-pressure gas pipelines |
Country Status (1)
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| CN (1) | CN104847981A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523818A (en) * | 2016-11-30 | 2017-03-22 | 宜宾海翔化工有限责任公司 | Flange |
| CN108278433A (en) * | 2017-12-28 | 2018-07-13 | 上海中船三井造船柴油机有限公司 | A kind of attachment device of double wall high-pressure gas pipelines |
| CN110268186A (en) * | 2016-11-08 | 2019-09-20 | 菲德迈尔设备公司 | Band hides the hygienic clamping element of screw thread |
| CN110630188A (en) * | 2019-10-12 | 2019-12-31 | 西南石油大学 | Double-gradient well drilling air inflation connector for air inflation of marine riser |
| CN111561630A (en) * | 2020-06-13 | 2020-08-21 | 温州市动宠商贸有限公司 | Pipeline leakage-proof method and device |
| CN112739946A (en) * | 2018-09-13 | 2021-04-30 | 环球生命科技咨询美国有限责任公司 | Aseptic connector with integrated wireless connectivity |
| EP4040030A1 (en) * | 2021-02-05 | 2022-08-10 | Honeywell International Inc. | Fluid flow connector |
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| US4732414A (en) * | 1986-11-18 | 1988-03-22 | Junio Inaba | Joint for coaxial pipe |
| CN201050652Y (en) * | 2007-06-01 | 2008-04-23 | 成都植源机械科技有限公司 | Self-tightening type flange |
| US20100270788A1 (en) * | 2008-04-03 | 2010-10-28 | Mitsubishi Heavy Industries, Ltd. | Connecting structure of double tube and assembling or disassembling method of double tube |
| CN101994885A (en) * | 2009-08-11 | 2011-03-30 | 维克托里克公司 | Seal with rigid stop ring |
| JP2011252571A (en) * | 2010-06-03 | 2011-12-15 | Mitsubishi Heavy Ind Ltd | Double-pipe connection structure for storage container |
| CN203743678U (en) * | 2013-10-09 | 2014-07-30 | 中国石油大学(北京) | Sealing element for deep-water pipeline connector |
-
2015
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4732414A (en) * | 1986-11-18 | 1988-03-22 | Junio Inaba | Joint for coaxial pipe |
| CN201050652Y (en) * | 2007-06-01 | 2008-04-23 | 成都植源机械科技有限公司 | Self-tightening type flange |
| US20100270788A1 (en) * | 2008-04-03 | 2010-10-28 | Mitsubishi Heavy Industries, Ltd. | Connecting structure of double tube and assembling or disassembling method of double tube |
| CN101994885A (en) * | 2009-08-11 | 2011-03-30 | 维克托里克公司 | Seal with rigid stop ring |
| JP2011252571A (en) * | 2010-06-03 | 2011-12-15 | Mitsubishi Heavy Ind Ltd | Double-pipe connection structure for storage container |
| CN203743678U (en) * | 2013-10-09 | 2014-07-30 | 中国石油大学(北京) | Sealing element for deep-water pipeline connector |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110268186A (en) * | 2016-11-08 | 2019-09-20 | 菲德迈尔设备公司 | Band hides the hygienic clamping element of screw thread |
| CN106523818A (en) * | 2016-11-30 | 2017-03-22 | 宜宾海翔化工有限责任公司 | Flange |
| CN108278433A (en) * | 2017-12-28 | 2018-07-13 | 上海中船三井造船柴油机有限公司 | A kind of attachment device of double wall high-pressure gas pipelines |
| CN112739946A (en) * | 2018-09-13 | 2021-04-30 | 环球生命科技咨询美国有限责任公司 | Aseptic connector with integrated wireless connectivity |
| CN110630188A (en) * | 2019-10-12 | 2019-12-31 | 西南石油大学 | Double-gradient well drilling air inflation connector for air inflation of marine riser |
| CN110630188B (en) * | 2019-10-12 | 2021-04-20 | 西南石油大学 | Double-gradient well drilling air inflation connector for air inflation of marine riser |
| CN111561630A (en) * | 2020-06-13 | 2020-08-21 | 温州市动宠商贸有限公司 | Pipeline leakage-proof method and device |
| EP4040030A1 (en) * | 2021-02-05 | 2022-08-10 | Honeywell International Inc. | Fluid flow connector |
| US11732831B2 (en) | 2021-02-05 | 2023-08-22 | Honeywell International Inc. | Fluid flow connector |
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Application publication date: 20150819 |
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