CN110485536A - A kind of datonation-inhibition well lid of intelligence pressure release - Google Patents
A kind of datonation-inhibition well lid of intelligence pressure release Download PDFInfo
- Publication number
- CN110485536A CN110485536A CN201810457954.3A CN201810457954A CN110485536A CN 110485536 A CN110485536 A CN 110485536A CN 201810457954 A CN201810457954 A CN 201810457954A CN 110485536 A CN110485536 A CN 110485536A
- Authority
- CN
- China
- Prior art keywords
- main body
- well lid
- datonation
- pressure release
- bearing structure
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007921 spray Substances 0.000 claims abstract description 36
- 239000010865 sewage Substances 0.000 claims abstract description 15
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 7
- 238000013480 data collection Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000004567 concrete Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 26
- 239000000126 substance Substances 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 4
- 230000001629 suppression Effects 0.000 abstract description 3
- 238000007792 addition Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000249914 Hemigraphis reptans Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000000069 prophylactic effect Effects 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
- E03F2005/065—Gully gratings with elastic locking elements
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
A kind of datonation-inhibition well lid of intelligent pressure release of disclosure of the invention, including sensing device, well lid main body, water spray system, the well lid main body includes main body bearing structure and controllable pressure relief plate, the main body bearing structure is tightly connected with the reinforced concrete cover plate being layed in above sewage conduct, controllable pressure relief plate is located at main body bearing structure top, one end is fixedly connected by rotation axis with main body bearing structure, and one end is connect by buckle with main body bearing structure；The water spray system and sensing device are set to main body bearing structure lower part.Can fire explosion in real-time monitoring pipeline a situation arises, and control the operation of manhole cover system pressure release, explosion suppression device, weaken the fire explosion harm in sewage conduct, ensure petroleum chemical enterprise's operational safety.
Description
Technical field
Invention belongs to safe and scientific and engineering experiment equipment technical field, in particular to the pressure release of restricted clearance intelligence is datonation-inhibition sets
Standby field, the datonation-inhibition well lid of specifically a kind of intelligence pressure release.
Background technique
Sewage disposal system before petrochemical industry chemical company is bright ditch construction, the unobstructed device in top, at sewage
It manages volatile combustible of the Installed System Memory in the components such as heavy oil, light oil, oil slowly to evaporate at branch, gradually spread, once
Serious blast accident can be caused by encountering incendiary source, threaten the operational safety of device and entire plant area nearby.GB50160-2012
" code for fire protection design of petrochemical enterprises [exposure draft] " proposes related request, petrochemical industry to sewage disposal system design
Enterprise's sewage conduct needs to add cover board and earthing above, while in device outlet and each section of addition trapped well of pipeline, with this
Completely cut off fire source, avoids contacting with the combustible component in pipeline.But sewage conduct upper cover plate and earthing are logical by neighbouring vehicle
Crossing generation and vibration and rain drop erosion etc. influences, leakproofness it is difficult to ensure that, once there is leakage, encountering incendiary source can still be generated
Fire explosion risk, and since the addition of cover board, the superpressure for generation of exploding can also blow up cover board, cause secondary disaster.
Therefore, the datonation-inhibition well lid of intelligent pressure release is added on sewage conduct cover board, superpressure when by fire explosion is released,
Inhibiting internal flame to propagate has important security implications.Well lid related patents are all from anti-theft and leakproofness both at home and abroad at present
It accounts for, there is no intelligent pressure release and datonation-inhibition characteristic is considered, is unsuitable in the sewage conduct fired.
Summary of the invention
In view of the deficienciess of the prior art, invention, which provides, a kind of can carry out blast accident in petroleum chemical enterprise's sewage conduct
The datonation-inhibition well lid of the intelligent pressure release of overpressure relief and explosion suppression passes through the sensitive impact resistance sensing dress of height in intelligent well cover system
Set, can fire explosion in real-time monitoring pipeline a situation arises, and control the operation of manhole cover system pressure release, explosion suppression device, weaken
Fire explosion harm in sewage conduct, ensures petroleum chemical enterprise's operational safety.
In order to solve the above-mentioned technical problem, invention the technical solution adopted is that: a kind of intelligence pressure release datonation-inhibition well lid, including pass
Induction device, well lid main body, water spray system, the well lid main body include main body bearing structure and controllable pressure relief plate, the main body
Bearing structure is tightly connected with the reinforced concrete cover plate being layed in above sewage conduct, and controllable pressure relief plate is located at main body pressure-bearing knot
Structure top, one end are fixedly connected by rotation axis with main body bearing structure, and one end is connect by buckle with main body bearing structure；Institute
It states water spray system and sensing device is set to main body bearing structure lower part.
Further, the main body bearing structure is L-type, including horizontal plane and vertical plane, and horizontal plane is equipped with fixation hole,
It is tightly connected by bolt and seal gasket and reinforced concrete cover plate；The lower section of vertical plane is equipped with water spray system, side-lower
If being equipped with sensing device on sensing passage there are two sensing passage.
Further, the water spray system includes spray head and nozzle, the round water inlet pipe of connection one, water inlet pipe above spray head
Upper end connect a quick adapter.
Further, the sensing device includes pressure sensor, infrared sensor, Ultraviolet sensor.
Further, it is sealed between the controllable pressure relief plate and main body bearing structure by rubber mat, controllable pressure relief plate one end
Fixed one end is fixed by snap on the rotating shaft, and the buckle is equipped with micromotor, passes through micromotor control buckle
It opens and is closed；High elastic modulus metal spring is equipped between rotation axis and rubber mat, when controllable pressure relief plate closed state, at spring
In compressive state.
Based on the active prevention system of the intelligent datonation-inhibition well lid of pressure release above-mentioned, including the datonation-inhibition well lid of intelligent pressure release above-mentioned,
It further include high service system, data collection system and host computer, the high service system is connect with water spray system, sensing
Device is connect with data collection system, and the micromotor, data collection system and high service system connect with host computer respectively
It connects.
Further, the water inlet pipe above the water spray system connects high service system by quick adapter.
Compared with prior art, invention advantage is:
(1) compared with existing sewerage well lid, well lid of the invention connects fastening, and will not jump winged phenomenon, and have
Have active signal monitoring device, can a situation arises for fire explosion in real-time monitoring sewerage, and pass through relevant apparatus and carry out
The datonation-inhibition operation of pressure release, initiative preventability is high, can reduce fire explosion harm in first time.
(2) monitoring device of the invention uses pressure sensor, infrared sensor and Ultraviolet sensor, why uses this
Kind form, first is that can not determine specific explosion site, this structure type can because the explosion time in pipeline or irrigation canals and ditches occurs
To capture the detonator signal nearest from demolition point, cause system acting；Second is that using this form, it can be from pressure and fire
Signal of both flame is set about, and is captured detonator signal at the first time, is caused system acting.
(3) present invention uses water spray system, after either still flame reaches before flame reaches, as long as sensor sense
Explosion should be arrived, will be issued and be instructed by host computer, started high service system, carry out water spray in entire sewerage, one
Come can be effectively reduced combustible component burning process reaction rate, two can reduce explosion generate surge.
(4) present invention is applied in the sewerage of petrochemical enterprise, the component using water as datonation-inhibition fire extinguishing, cost
It is low, environmentally friendly, secondary pollution will not be caused to sewage sludge oil, reduce subsequent processing difficulty.
Detailed description of the invention
Fig. 1 is the datonation-inhibition manhole cover structure schematic diagram of intelligent pressure release of invention；
Fig. 2 is the active prevention system schematic diagram based on the datonation-inhibition well lid of intelligent pressure release.
In figure, 1. main body bearing structures；2. bolt；3. seal gasket A；4. seal gasket B；5. seal gasket C；6. controllable
Pressure relief plate；7. spring；8. micromotor；9. buckle；10. quick adapter；11. spray head；12. nozzle；13. pressure sensor；
14. infrared sensor；15. Ultraviolet sensor；16. reinforced concrete cover plate；17. high service system；18. data acquisition system
System；19. host computer；20. rotation axis.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further described invention.
The present invention provides a kind of intelligent pressure release datonation-inhibition well lid, by internal high sensitive impact resistance sensing device, can supervise in real time
A situation arises for fire explosion in test tube road, and the datonation-inhibition program of starting pressure release carries out active prevention automatically, weakens in sewage conduct
Fire explosion harm.
As shown in Figure 1, the datonation-inhibition well lid of intelligent pressure release, including sensing device, well lid main body, water spray system, well lid main body
Including main body bearing structure 1 and controllable pressure relief plate 6, controllable pressure relief plate 6 is located at 1 top of main body bearing structure, and one end passes through rotation
Axis 20 is fixedly connected with main body bearing structure 1, and one end is connect by buckle 9 with main body bearing structure 1；Water spray system and sensing
Device is set to 1 lower part of main body bearing structure.
Main body bearing structure 1 is L-type, including horizontal plane and vertical plane, and horizontal plane thinner thickness, horizontal plane, which is equipped with, fixes circle
Hole passes through bolt 2 and seal gasket A3, seal gasket B 4 and 16 phase of reinforced concrete cover plate being layed in above sewage conduct
Connect and keep sealing, prevents from altering outside gas；Vertical face thickness is thicker, and the lower section of vertical plane is equipped with water spray system, water spray dress
It sets including spray head 11 and nozzle 12, the round water inlet pipe of connection one above spray head 11, the upper end of water inlet pipe connects a quick adapter
10, the water spray fire extinguishing of this patent is not traditional water spray, its essence is special spray head is passed through, in high-pressure situations
It is lower to form the minimum water mist of granularity, it can greatly increase water mist and flame, it is datonation-inhibition to improve fire extinguishing for the contact area of combustible component
Efficiency.The side-lower of vertical plane is set there are two sensing passage, is equipped with sensing device on sensing passage, sensing device includes pressure
Sensor 13, infrared sensor 14, Ultraviolet sensor 15, upper channel connect pressure sensor 13, acquire well lid lower space
Interior pressure change, lower passage connect infrared sensor 14 and Ultraviolet sensor 15, monitor the flame in well lid lower space
A situation arises.
Main body bearing structure 1 and controllable pressure relief plate 6 can be made round or rectangular as needed, material it is optional cylinder iron or
Stainless steel.It is sealed between controllable pressure relief plate 6 and main body bearing structure part 1 using round or rectangular rubber mat 5, controllable pressure relief plate
6 one end are fixed in rotation axis 20, and the other end is fixed by buckle 9, and buckle 9 is equipped with micromotor 8, pass through micromotor 8
The unlatching and closure of control buckle 9；High elastic modulus metal spring 7, controllable pressure release are equipped between rotation axis 20 and seal gasket 5
When 6 closed state of plate, spring 7 is in compressive state.After buckle 9 is opened, under the action of 7 elastic force of spring, controllable pressure release
Plate 6 will be lifted, and complete pressure discharge operations.
As shown in Fig. 2, the active prevention system based on the datonation-inhibition well lid of intelligent pressure release above-mentioned, including intelligent pressure release above-mentioned
Datonation-inhibition well lid, further includes high service system 17, data collection system 18 and host computer 19, and high service system 17 passes through quick
Adapter 10 is connect with water spray system, and sensing device is connect with data collection system 18, micromotor 8, data collection system
18 and high service system 17 connect respectively with host computer 19.
Generation fire explosion is substantially in petroleum chemical enterprise's sewerage is occurred with gas phase state, and gas phase explosion can be limited
Superpressure and flame are generated in space, and are propagated with cracking speed to the direction far from explosive source, therefore real-time monitoring is this kind of existing
Generation as that can determine fire explosion in time.Intelligent well cover of the invention is the superpressure generated based on explosion and flare up fire
As judgment basis.When installation, intelligent well cover is fixed on reinforced concrete cover plate 16 according to structure shown in this patent, according to
Well lid lower space size selects suitable water spray spray head 11 and nozzle 12；Pressure sensor is installed on two sensing passages
13, infra red flame sensor 14 and ultraviolet flame sensor 15, and be connected by conducting wire with data collection system 18, and by upper
Position machine 19 is shown and is remotely operated；The quick adapter 10 of water inlet pipe upper end above water spray system and high service system
System 17 is connected, while high service system 17 and host computer 19 being attached, so that program automatically controls water system
System；Host computer 19 is connected with micromotor 8, so that when fire explosion occurs, program is automatically performed the unlatching of buckle 9, release
Pressure relief plate.
Pressure sensor 13, infrared sensor 14 and Ultraviolet sensor when having fire or explosion occurs, below well lid
15 can collect related superpressure and optical signal, and the autonomous prophylactic procedures of host computer 19 can be judged as this kind of abnormal signal situation fire
Calamity explosion occurs, and next sends commands to high service system 17 and micromotor 8, on the one hand passes through water spray system toward institute
There is intelligent well cover lower space to spray water mist, inhibit explosion and flame transmission, on the other hand the micromotor on instruction buckle 9
8 operatings, open buckle 9, release well lid locking, at this time under the double action of surge and spring 7, controllable 6 bullet of pressure relief plate
It opens, the superpressure quick release of lower space is come out, prevents superpressure from endangering, until fire explosion disappears, system judgement stops supplying
Water.
Certainly, above description be not be limitation to invention, invention is also not limited to the example above, the art it is general
Logical technical staff, in the essential scope of invention, the variations, modifications, additions or substitutions made all should belong to the protection model of invention
It encloses.
Claims (8)
1. a kind of datonation-inhibition well lid of intelligence pressure release, it is characterised in that: including sensing device, well lid main body, water spray system, the well
Lid main body includes main body bearing structure and controllable pressure relief plate, the main body bearing structure and the reinforcing bar being layed in above sewage conduct
Concrete cover is tightly connected, and controllable pressure relief plate is located at main body bearing structure top, and one end passes through rotation axis and main body pressure-bearing knot
Structure is fixedly connected, and one end is connect by buckle with main body bearing structure；The water spray system and sensing device are held set on main body
Laminated structure lower part.
2. the datonation-inhibition well lid of intelligence pressure release according to claim 1, it is characterised in that: the main body bearing structure is L-type, packet
Horizontal plane and vertical plane are included, horizontal plane is equipped with fixation hole, connects by bolt and the sealing of seal gasket and reinforced concrete cover plate
It connects；The lower section of vertical plane is equipped with water spray system, side-lower and sets there are two sensing passage, is equipped with sensing dress on sensing passage
It sets.
3. intelligence pressure release datonation-inhibition well lid according to claim 2, it is characterised in that: the water spray system include spray head and
Nozzle, the round water inlet pipe of spray head top connection one, the upper end of water inlet pipe connects a quick adapter.
4. the datonation-inhibition well lid of intelligence pressure release according to claim 2, it is characterised in that: the sensing device includes pressure sensing
Device, infrared sensor, Ultraviolet sensor.
5. the datonation-inhibition well lid of intelligence pressure release according to claim 1, it is characterised in that: the controllable pressure relief plate and main body pressure-bearing
It is sealed between structure by rubber mat, controllable pressure relief plate one end is fixed on the rotating shaft, and one end is fixed by snap, on the buckle
Equipped with micromotor, pass through the unlatching and closure of micromotor control buckle；High elastic modulus is equipped between rotation axis and rubber mat
Metal spring, when controllable pressure relief plate closed state, spring is in compressive state.
6. the datonation-inhibition well lid of intelligence pressure release according to claim 3, it is characterised in that: the controllable pressure relief plate and main body pressure-bearing
It is sealed between structure by rubber mat, controllable pressure relief plate one end is fixed on the rotating shaft, and one end is fixed by snap, on the buckle
Equipped with micromotor, pass through the unlatching and closure of micromotor control buckle；High elastic modulus is equipped between rotation axis and rubber mat
Metal spring, when controllable pressure relief plate closed state, spring is in compressive state.
7. the active prevention system based on the datonation-inhibition well lid of intelligent pressure release as claimed in claim 6, it is characterised in that: wanted including right
The intelligent datonation-inhibition well lid of pressure release described in asking 6, further includes high service system, data collection system and host computer, and the high pressure supplies
Water system is connect with water spray system, and sensing device is connect with data collection system, the micromotor, data collection system and
High service system is connect with host computer respectively.
8. the active prevention system based on the datonation-inhibition well lid of intelligent pressure release as claimed in claim 7, it is characterised in that: the water spray
Water inlet pipe above device connects high service system by quick adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457954.3A CN110485536A (en) | 2018-05-14 | 2018-05-14 | A kind of datonation-inhibition well lid of intelligence pressure release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457954.3A CN110485536A (en) | 2018-05-14 | 2018-05-14 | A kind of datonation-inhibition well lid of intelligence pressure release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110485536A true CN110485536A (en) | 2019-11-22 |
Family
ID=68544884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457954.3A Pending CN110485536A (en) | 2018-05-14 | 2018-05-14 | A kind of datonation-inhibition well lid of intelligence pressure release |
Country Status (1)
| Country | Link |
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| CN (1) | CN110485536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117926898A (en) * | 2024-03-25 | 2024-04-26 | 山东泽涛复合材料有限公司 | Multifunctional composite well cover |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004257244A (en) * | 2004-06-16 | 2004-09-16 | Ooike Co Ltd | Unit block for ditch, and ditch |
| CN2771215Y (en) * | 2005-04-06 | 2006-04-12 | 谢绍明 | Methane tank manhole cover explosion-proof decompression device |
| CN204238250U (en) * | 2014-11-20 | 2015-04-01 | 陈志云 | A kind of manhole cover for building explosion-proof on put forward structure |
| CN204922486U (en) * | 2015-08-27 | 2015-12-30 | 南京工业大学 | Intercommunication container with datonation -inhibitionly explode duplicate protection device with letting out |
| CN107998540A (en) * | 2017-12-05 | 2018-05-08 | 大连理工大学 | A kind of reusable datonation-inhibition pressure relief device |
-
2018
- 2018-05-14 CN CN201810457954.3A patent/CN110485536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004257244A (en) * | 2004-06-16 | 2004-09-16 | Ooike Co Ltd | Unit block for ditch, and ditch |
| CN2771215Y (en) * | 2005-04-06 | 2006-04-12 | 谢绍明 | Methane tank manhole cover explosion-proof decompression device |
| CN204238250U (en) * | 2014-11-20 | 2015-04-01 | 陈志云 | A kind of manhole cover for building explosion-proof on put forward structure |
| CN204922486U (en) * | 2015-08-27 | 2015-12-30 | 南京工业大学 | Intercommunication container with datonation -inhibitionly explode duplicate protection device with letting out |
| CN107998540A (en) * | 2017-12-05 | 2018-05-08 | 大连理工大学 | A kind of reusable datonation-inhibition pressure relief device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117926898A (en) * | 2024-03-25 | 2024-04-26 | 山东泽涛复合材料有限公司 | Multifunctional composite well cover |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20191122 |