CN104181043A - Tube bursting test apparatus with verification mechanism - Google Patents

Tube bursting test apparatus with verification mechanism Download PDF

Info

Publication number
CN104181043A
CN104181043A CN201410077967.XA CN201410077967A CN104181043A CN 104181043 A CN104181043 A CN 104181043A CN 201410077967 A CN201410077967 A CN 201410077967A CN 104181043 A CN104181043 A CN 104181043A
Authority
CN
China
Prior art keywords
path
explosion
casting
tubing
test device
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.)
Granted
Application number
CN201410077967.XA
Other languages
Chinese (zh)
Other versions
CN104181043B (en
Inventor
马忠武
梅继华
刘向阳
白弘基
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Hunan Geely Automobile Parts Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Hunan Geely Automobile Parts Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Hunan Geely Automobile Parts Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN201410077967.XA priority Critical patent/CN104181043B/en
Publication of CN104181043A publication Critical patent/CN104181043A/en
Application granted granted Critical
Publication of CN104181043B publication Critical patent/CN104181043B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention relates to a tube bursting test apparatus with a verification mechanism, and solves the defects of the need of a pipeline system for providing a power medium by present bursting test apparatuses and the easy affection of bursting test structures by the sealing performance of the pipeline system. A test machine is a cast body structure, a channel is arranged in the test machine, the channel is provided with an inlet connected with the outside of the above cast body, the middle position of the channel is provided with a channel plugging head controlled by a controller to move and capable of blocking the channel, the channel connected with the opening of a bursting cavity is provided with a stopper or a connector, the stopper is connected with a test meter for verification, and the connector connected with a tube is used for bursting test. The overall test machine is the cast body structure, and the channel is arranged in the cast body, so the pipeline system needed by medium flow is omitted, and a pipeline connecting part is also omitted, thereby the leakage of the pipeline system is reduced; and the whole sealing performance of the channel can be verified when the channel plugging head does not work, and the sealing performance of each segment of the channel can be verified when the channel plugging head works.

Description

The tubing explosion bulge test device of tape verifying mechanism
Technical field
The present invention relates to a kind of explosion bulge test device, is mainly for tubing explosion bulge test, the tubing explosion bulge test device of especially a kind of tape verifying mechanism.
Background technology
The working environment more complicated of automobile product oil pipe, except oily medium, also can bear high pressure, Gao Re and brute force, if oil pipe quality does not pass a test, in use there will be the danger of oil pipe blast, once oil pipe is blasted, the fuel oil of high pressure may spray out, the high temperature that the equipment of high-speed cruising produces also may be lighted fuel oil, and the phenomenon of vehicle burning occurs, and injures passenger's safety.And oil pipe burst, also can reduce the handling of vehicle, the vehicle of especially running at high speed, become uncontrollable, easily cause serious traffic hazard, jeopardize other vehicles and pedestrian, therefore automobile product oil pipe, before coming into operation, all needs through oil pipe explosion bulge test.
Existing oil pipe bursting test machine, in test, has two kinds of situations and causes oil pipe defective, and one is that the oil pipe sole mass oil pipe that causes not up to standard is defective, and another kind is that bursting test machine exists leakage to cause oil pipe defective.But all mechanisms to bursting test machine verification not of existing oil pipe bursting test machine, while there is the underproof result of oil pipe, all think not up to standard causing of oil pipe sole mass, the difference that such test findings and physical presence are larger, can cause oil pipe qualification rate degradation.
Patent Office of the People's Republic of China has announced a CN102645376A document on August 22nd, 2012, name is called a kind of oil pipe explosion bulge test device, comprise the storage box for accommodating test fluid flow, the experimental tank of petroleum pipeline fixation kit is installed, for being communicated with the pipe system of storage box and petroleum pipeline, pipe system comprises the runner pipe being connected with storage box and petroleum pipeline, and be connected with runner pipe and the high-pressure pump of hydraulic energy is provided, be connected with high-pressure pump and control the central control system that high-pressure pump starts or cuts out, central control system also comprises the pressure test assembly that records oil pipe burst pressure.This explosion bulge test device, connect petroleum pipeline and storage box by runner pipe, when test, runner pipe is also all the time under high pressure or powerful state, the quality influence of runner pipe test structure, but this explosion bulge test device does not carry out the structure of self-inspection to the quality of runner pipe self, the structure of also connecting portion not being carried out self-inspection, can there is larger error in the accuracy of test findings therefore.
Summary of the invention
The object of this invention is to provide the tubing explosion bulge test device of a kind of tape verifying mechanism, the medium that testing machine uses is directly provided by power source, without other pipe systems, testing machine inside is provided with power source flow passage, verification agency is set on flow passage, by the sealing property of verification agency's verification testing machine, leak thereby get rid of testing machine the underproof phenomenon of oil pipe causing.
The present invention has also solved existing explosion bulge test device needs pipe system to connect for dynamic medium is provided, explosion bulge test structure is easily subject to the sex defect of the sealing of pipe system, the tubing explosion bulge test device of a kind of tape verifying mechanism is provided, testing machine is as a whole, testing machine inside is provided with media flow path, reducing pipe system, is especially that pipeline connects, thereby prevents the defective phenomenon of oil pipe because of the former of pipe system thereby appearance.
The present invention has also solved existing explosion bulge test device does not have mechanism to carry out verification to testing machine and the defect that occurs the defective phenomenon of oil pipe causing because of testing machine self reason, the tubing explosion bulge test device of a kind of tape verifying mechanism is provided, is furnished with a tank, tank can be integrally contained by testing machine, thereby the verification agency of testing machine is carried out to leakage test, prevent that testing machine from, because leaking appears in verification agency, affecting oil pipe test structure.
The technical solution adopted for the present invention to solve the technical problems is: the tubing explosion bulge test device of a kind of tape verifying mechanism, comprise medium power source, the testing machine being connected with medium power source, testing machine is body of casting structure, body of casting side is provided with explosion chamber and is sealed by explosion door, testing machine inside is provided with a path, this path is communicated with explosion chamber, on path, offer the import of a connection body of casting outside, the centre position of path is provided with a path block head that is moved and can be blocked path by controller control, path is communicated with the opening part in explosion chamber and is furnished with obstruction or connector, in obstruction, be connected with test chart for verification, connector connects tubing for explosion bulge test.The medium that the medium that medium power source is used for generation of explosion bulge test or verification are used can be gas or liquid, testing machine entirety is body of casting structure, and body of casting inside is provided with path, has saved the pipe system that media flow needs, and has also saved pipeline connecting part, has also just reduced the leakage of pipe system, path block head and obstruction have formed verification agency, when path block head is inoperative by controller control, the sealing of verification path entirety, can learn the overall tightness of path by the test chart data on stopping up and the display data contrast on medium power source, if path overall tightness has problem, path block head is blocked path and is made two sections of paths that are not interconnected of path formation under controller action, can learn again the sealing of each section of path of blocking-up by the test chart data on stopping up and the display data contrast on medium power source, just can get rid of like this leakage problem of path self by verification, thereby get rid of because of path reveal cause defective.
As preferably, the path of testing machine inside by three sections successively vertical straight-through road form, wherein two parallel straight-through roads are communicated with explosion chamber, and another straight-through road mediates and vertical above-mentioned two parallel straight-through roads, and import is parallel wherein always on the extended line of path in two.The path processing of this structure is more convenient.
As preferably, on the extended line on the straight-through road in the middle of testing machine inherence, be provided with auxiliary channel, auxiliary channel is communicated to the outside of the body of casting and is fixed with auxiliary plug at oral area, and path block head is on auxiliary channel.Straight-through road in the middle of the convenient processing of auxiliary channel, also convenient installation and control path block head.
As preferably, path block head is connected with control lever, control lever is connected with driving mechanism, driving mechanism is connected with described controller, the centre of auxiliary plug is provided with through hole, in control lever periphery, be equipped with O-ring seal, control lever reaches outside the body of casting through through hole, O-ring seal and through-hole wall sealing on control lever.
As preferably, auxiliary plug intermediate throughholes is tapered towards one end of body of casting inside, it is stifled that correct position place on control lever is provided with the taper matching with the tapering point of through hole, on the stifled conical surface of this taper, be provided with multiple-sealed groove, in seal groove, be equipped with O-ring seal, control lever moves, and taper is blocked up while cooperation with tapering point, and the path in the body of casting belongs to opens shape.Stifled the matching with the tapering point of through hole of taper realized sealing, forms multi-layer sealed in conjunction with the O-ring seal on control lever.
As preferably, path block head is cone shape, is provided with multiple-sealed groove on the circular conical surface of cone, is equipped with O-ring seal in seal groove, on corresponding path, is provided with the bellmouth matching with path block head.
As preferably, the cross section of the seal groove in the large footpath of path block head cone place is rectangular, O-ring seal in rectangular seal groove has snapin part and the sealing of rectangle, snapin part snaps onto in seal groove, sealing is projected into sealing groove outside, and the side of sealing portion is provided with the curved recess of a ring cross-section, and O-ring seal snaps onto seal groove, and this recess is towards the bigger diameter end of cone.O-ring seal with recess is owing to being subject to pressure medium effect on path in sealing, and the edge of recess can be adjacent to path inwall, improves sealing.
As preferably, this device also comprises a tank, is filled with water in tank, and the degree of depth of water is greater than the height of the body of casting, and testing machine is in tank.Testing machine is immersed in to the underwater of tank, sealing that can verification testing machine verification agency, prevents the leakage that testing machine exists because of the installation of verification agency.
As preferably, body of casting upper end is connected with elevating mechanism, and the lifting of elevating mechanism motoring ring test machine is to be immersed in tank or to leave tank, and described elevating mechanism adopts hydraulic drive type elevating mechanism.
As preferably, described explosion door is transparent explosion door.The convenient process of observing explosion bulge test of transparent explosion door.
The invention has the beneficial effects as follows: testing machine entirety is body of casting structure, and body of casting inside is provided with path, saved the pipe system that media flow needs, also saved pipeline connecting part, also just reduced the leakage of pipe system; Can verification path overall tightness when path block head is not worked, sealing that can each section of path of verification when the work of path block head.
Brief description of the drawings
Fig. 1 is a kind of path entirety of the present invention verification structural representation;
Fig. 2 is a kind of path segmentation of the present invention verification structural representation;
Fig. 3 is a kind of testing machine overall tightness of the present invention verification structural representation;
Fig. 4 is a kind of tubing explosion bulge test of the present invention structural representation;
Fig. 5 is a kind of path plugging head structure of the present invention schematic diagram;
In figure: 1, testing machine, 2, medium power source, 3, middle straight-through road, 4, path block head, 5, taper is stifled, and 6, auxiliary channel, 7, auxiliary plug, 8, tank, 9, controller, 10, O-ring seal, 11, through hole, 12, control lever, 13, parallel straight-through road, 14, test chart, 15, stop up, 16, explosion chamber, 17, explosion door, 18, water, 19, connector, 20, tubing, 21, snapin part, 22, sealing, 23, recess.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the tubing explosion bulge test device (referring to accompanying drawing 1 accompanying drawing 2 accompanying drawings 3) of a kind of tape verifying mechanism, comprise medium power source 2, the testing machine 1 being connected with medium power source, is connected with tensimeter on medium power source.
Testing machine is body of casting structure, and body of casting side is provided with explosion chamber 16 and is sealed by explosion door 17, and explosion door is transparent configuration.Testing machine inside is provided with a path, this path is communicated with explosion chamber, path by three sections successively vertical straight-through road form, be respectively two parallel straight-through road 13 and middle straight-through roads 3, middle straight-through road mediates and vertical two parallel straight-through roads, and two parallel straight-through roads are communicated with explosion chamber, and is furnished with and stops up 15 or connector 19 at the opening part being communicated with, in obstruction, be connected with test chart 14 for verification, connector connects tubing 20 for explosion bulge test.Wherein on a parallel straight-through road, also offer the import of a connection body of casting outside, inflow point's shutoff has end socket, and medium power source connects end socket.On the extended line on middle straight-through road, be provided with auxiliary channel 6, auxiliary channel is communicated to the outside of the body of casting and is fixed with auxiliary plug 7 at oral area.Auxiliary channel place is provided with one and is controlled mobile and can be blocked the path block head 4 on middle straight-through road by controller 9.The centre of auxiliary plug is provided with through hole 11, path block head is connected with control lever 12, control lever is connected with driving mechanism, driving mechanism is connected with described controller, in control lever periphery, be equipped with O-ring seal 10, control lever reaches outside the body of casting through through hole, O-ring seal and through-hole wall sealing on control lever.Through hole is tapered towards one end of body of casting inside, correct position place on control lever is provided with the taper stifled 5 matching with the tapering point of through hole, on the stifled conical surface of this taper, be provided with multiple-sealed groove, in seal groove, be equipped with O-ring seal, control lever moves, taper is blocked up while cooperation with tapering point, and the path in the body of casting belongs to opens shape.
Path block head 4 is cone shape (referring to accompanying drawing 5), is provided with multiple-sealed groove on the circular conical surface of cone, is equipped with O-ring seal in seal groove, on the straight-through road of corresponding centre, is provided with the bellmouth matching with path block head.The cross section of the seal groove at the large footpath of path block head cone place is rectangular, O-ring seal in rectangular seal groove has snapin part 21 and the sealing 22 of rectangle, snapin part snaps onto in seal groove, sealing is projected into sealing groove outside, and the side of sealing portion is provided with the curved recess of a ring cross-section 23, O-ring seal snaps onto seal groove, and this recess is towards the bigger diameter end of cone.
The upper end of testing machine is connected with elevating mechanism, and elevating mechanism adopts hydraulic drive type elevating mechanism, and the lifting of elevating mechanism motoring ring test machine, to be immersed in tank or to leave tank, is filled with WATER AS FLOW MEDIUM 18 in tank, and the degree of depth of water is greater than the height of the body of casting.
Testing machine test is front in closed condition, path block head is in opening, two parallel straight-through roads are communicated with the mouth place in explosion chamber by stopping up shutoff, then pressed gas is filled with the path in the body of casting by medium power source, whether the gas gauge displayed value of observation test table displayed value and medium power source is consistent, if consistent, expression body of casting internal duct is not revealed, and can connect tubing and carry out explosion bulge test.
If test chart displayed value and tensimeter displayed value are inconsistent, illustrate that body of casting internal duct exists leakage, now by path block head by the straight tunnel end shutoff of centre, charged pressure gas again, whether observation test table displayed value is consistent with gas gauge displayed value, if consistent, the straight-through road in the middle of explanation exists and reveals with a parallel straight-through road on limit, may there is leakage in the obstruction that is mainly now parallel straight-through road port place, again carry out verification after changing or adjusting.If path block head is by after the straight-through road sealing of centre, test chart displayed value and gas gauge displayed value are also inconsistent, illustrate that this parallel straight-through road exists leakage or auxiliary channel to exist and reveals, now need corresponding obstruction and auxiliary plug to change or adjust, again carry out verification, and finally confirm.
In the time confirming that pipeline is revealed, testing machine can be immersed in tank, observe which outlet and have bubble, the obstruction in this exit of corresponding adjustment or auxiliary plug, and again immerse in tank and confirm.
If validation test machine is not revealed, connect tubing 20 to be tested by connector and carry out explosion bulge test (referring to accompanying drawing 4).
Above-described embodiment is a kind of preferred version of the present invention, not the present invention is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.

Claims (10)

1. the tubing explosion bulge test device of a tape verifying mechanism, comprise medium power source, the testing machine being connected with medium power source, it is characterized in that testing machine is body of casting structure, body of casting side is provided with explosion chamber and is sealed by explosion door, testing machine inside is provided with a path, this path is communicated with explosion chamber, on path, offer the import of a connection body of casting outside, the centre position of path is provided with a path block head that is moved and can be blocked path by controller control, path is communicated with the opening part in explosion chamber and is furnished with obstruction or connector, in obstruction, be connected with test chart for verification, connector connects tubing for explosion bulge test.
2. the tubing explosion bulge test device of tape verifying according to claim 1 mechanism, the path that it is characterized in that testing machine inside by three sections successively vertical straight-through road form, wherein two parallel straight-through roads are communicated with explosion chamber, another straight-through road mediates and vertical above-mentioned two parallel straight-through roads, and import is parallel wherein always on the extended line of path in two.
3. the tubing explosion bulge test device of tape verifying according to claim 2 mechanism, it is characterized in that being provided with auxiliary channel on the extended line on the straight-through road in the middle of testing machine inherence, auxiliary channel is communicated to the outside of the body of casting and is fixed with auxiliary plug at oral area, and path block head is on auxiliary channel.
4. the tubing explosion bulge test device of tape verifying according to claim 3 mechanism, it is characterized in that path block head is connected with control lever, control lever is connected with driving mechanism, driving mechanism is connected with described controller, the centre of auxiliary plug is provided with through hole, in control lever periphery, be equipped with O-ring seal, control lever reaches outside the body of casting through through hole, O-ring seal and through-hole wall sealing on control lever.
5. the tubing explosion bulge test device of tape verifying according to claim 4 mechanism, it is characterized in that auxiliary plug intermediate throughholes is tapered towards one end of body of casting inside, it is stifled that correct position place on control lever is provided with the taper matching with the tapering point of through hole, on the stifled conical surface of this taper, be provided with multiple-sealed groove, in seal groove, be equipped with O-ring seal, control lever moves, and taper is blocked up while cooperation with tapering point, and the path in the body of casting belongs to opens shape.
6. according to the tubing explosion bulge test device of the tape verifying mechanism described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that path block head is cone shape, on the circular conical surface of cone, be provided with multiple-sealed groove, in seal groove, be equipped with O-ring seal, on corresponding path, be provided with the bellmouth matching with path block head.
7. the tubing explosion bulge test device of tape verifying according to claim 6 mechanism, the cross section that it is characterized in that the seal groove in the large footpath of path block head cone place is rectangular, O-ring seal in rectangular seal groove has snapin part and the sealing of rectangle, snapin part snaps onto in seal groove, sealing is projected into sealing groove outside, and the side of sealing portion is provided with the curved recess of a ring cross-section, and O-ring seal snaps onto seal groove, and this recess is towards the bigger diameter end of cone.
8. according to the tubing explosion bulge test device of the tape verifying mechanism described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that this device also comprises a tank, be filled with water in tank, the degree of depth of water is greater than the height of the body of casting, and testing machine is in tank.
9. the tubing explosion bulge test device of tape verifying according to claim 8 mechanism, it is characterized in that body of casting upper end is connected with elevating mechanism, the lifting of elevating mechanism motoring ring test machine is to be immersed in tank or to leave tank, and described elevating mechanism adopts hydraulic drive type elevating mechanism.
10. according to the tubing explosion bulge test device of the tape verifying mechanism described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that described explosion door is transparent explosion door.
CN201410077967.XA 2014-03-05 2014-03-05 Tube bursting test apparatus with verification mechanism Expired - Fee Related CN104181043B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410077967.XA CN104181043B (en) 2014-03-05 2014-03-05 Tube bursting test apparatus with verification mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410077967.XA CN104181043B (en) 2014-03-05 2014-03-05 Tube bursting test apparatus with verification mechanism

Publications (2)

Publication Number Publication Date
CN104181043A true CN104181043A (en) 2014-12-03
CN104181043B CN104181043B (en) 2017-01-18

Family

ID=51962269

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410077967.XA Expired - Fee Related CN104181043B (en) 2014-03-05 2014-03-05 Tube bursting test apparatus with verification mechanism

Country Status (1)

Country Link
CN (1) CN104181043B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106769509A (en) * 2016-12-16 2017-05-31 青岛宇通管业有限公司 A kind of tubing pressure testing system and method for testing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201615862U (en) * 2010-01-09 2010-10-27 湖南吉利汽车部件有限公司 Automobile high pressure oil pipe withstand voltage and blasting test device
CN201740706U (en) * 2010-08-12 2011-02-09 山东聚亿管业有限公司 Pressure resistance and blasting experiment device for high pressure rubber pipe
CN103364279A (en) * 2013-07-24 2013-10-23 中国化工橡胶株洲研究设计院 Method for calibrating sounding balloon bursting instrument and calibration device thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201615862U (en) * 2010-01-09 2010-10-27 湖南吉利汽车部件有限公司 Automobile high pressure oil pipe withstand voltage and blasting test device
CN201740706U (en) * 2010-08-12 2011-02-09 山东聚亿管业有限公司 Pressure resistance and blasting experiment device for high pressure rubber pipe
CN103364279A (en) * 2013-07-24 2013-10-23 中国化工橡胶株洲研究设计院 Method for calibrating sounding balloon bursting instrument and calibration device thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106769509A (en) * 2016-12-16 2017-05-31 青岛宇通管业有限公司 A kind of tubing pressure testing system and method for testing

Also Published As

Publication number Publication date
CN104181043B (en) 2017-01-18

Similar Documents

Publication Publication Date Title
CN105036049A (en) Vacuumizing oil injection device
CN105973542A (en) Water heater inner container water test device
CN108088749A (en) Pipeline pressure testing device and pipeline pressure pilot system
CN204266986U (en) Carbon dioxide flooding oil field well head device
CN104502546A (en) Experimental device and method for detecting sealing performance of sealing material of gas drainage drilling hole
CN106401542B (en) A kind of microcosmic etching visualization clip-model of circulator bath high temperature and its application method
CN104458160B (en) Pipeline fitting pressure testing system and its method for testing pressure
EP3910191B1 (en) A method of checking a deaerating valve for an injector valve
CN104181043A (en) Tube bursting test apparatus with verification mechanism
CN203552585U (en) Device for simulating seawater leakage in pressure shell and connecting piece of underwater vehicle
CN104977142A (en) Closed valve service life test device
CN203772507U (en) Closed valve service life test device
CN105181271A (en) Relief device for pipeline leakage monitoring system performance test and testing method
CN203979895U (en) A kind of testing apparatus of pipe pressurized plugging effect
CN209589421U (en) Submarine pipeline washes away hanging critical pressure differential experimental provision on muddy sea bed
CN201974277U (en) Air-tight testing device
CN204328482U (en) A kind of LPG tank pipe-line system
CN206158701U (en) Visual centre gripping model of circulator bath high temperature microcosmic sculpture
CN109253845A (en) A kind of precision valve device for detecting sealability
CN203453168U (en) Blowout preventer control device with pneumatic pressure testing function
CN210033797U (en) Diesel engine water pump test bed
CN207687688U (en) A kind of harmful influence non-stop plugging drilling system
CN207662577U (en) A kind of tank cap lock air-tightness detection device
CN204371198U (en) Wellhead equipment
CN205593719U (en) Fire control valve pressure testing equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170118

Termination date: 20210305