CN204989153U - Water curtain is washed to disappear and is leaked testing arrangement of ammonia effect - Google Patents
Water curtain is washed to disappear and is leaked testing arrangement of ammonia effect Download PDFInfo
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- CN204989153U CN204989153U CN201520794958.2U CN201520794958U CN204989153U CN 204989153 U CN204989153 U CN 204989153U CN 201520794958 U CN201520794958 U CN 201520794958U CN 204989153 U CN204989153 U CN 204989153U
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- ammonia
- water curtain
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 271
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 136
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 230000000694 effects Effects 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title abstract description 17
- 238000004088 simulation Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000005202 decontamination Methods 0.000 claims description 31
- 230000003588 decontaminative effect Effects 0.000 claims description 30
- 238000009434 installation Methods 0.000 claims description 26
- 238000004880 explosion Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- 238000002474 experimental method Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 239000002341 toxic gas Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 208000036142 Viral infection Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- -1 electricity Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000035987 intoxication Effects 0.000 description 1
- 231100000566 intoxication Toxicity 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a water curtain is washed to disappear and is leaked testing arrangement of ammonia effect, testing arrangement arranges in airtight simulation ammonia leaks the space, comprises the ammonia system of leaking, water curtain system and ammonia concentration data acquisition system. Has following advantage: (1 ) testing arrangement simulation ammonia truly leaks the scene, makes the ammonia leak and goes on simultaneously with the water curtain injection, is identical with real scene, and the gained is theoretical and data are more reliable, and the test is easy to be accomplished, can use widely, (2 ) the utility model discloses a special relief pressure valve of ammonia and rotor gas flowmeter can guarantee that ammonia leakage system stably releases the ammonia, the security of system is effectively moved, (3 ) the utility model discloses a converter control explosion -proof fan of connection on computer processing system frequency of operation to can in time, clearance after the simulation tests sweep testing the space when leaking the space or take place to leak, (4 ) the leakage ammonia that disappears can efficiently be washed to the water curtain system.
Description
Technical field
The utility model belongs to a kind of proving installation field, relates to the proving installation be placed in simulation confined space, particularly relates to the proving installation that ammonia effect is leaked in a kind of water curtain decontamination.
Background technology
Ammonia is the virose combustion explosion gas of a kind of tool, and is important commercial production raw material, uses widely, also therefore there is ammonia leakage Frequent Accidents, the phenomenons such as accident impact is severe.Domestic and international researcher is for reducing accidental risk, stop the diffusion of leaking ammonia, ammonia is leaked to water curtain decontamination and has done a large amount of theory and experimental study, but mostly current done leakage ammonia decontamination experiment is to leak the decontamination again of quantitative gas in advance, the test of water curtain decontamination being leaked to ammonia effect is not mated with reality, and the theory of gained and data effectively can not support that water curtain decontamination is applied.
The utility model simulation ammonia actual leakage scene, ammonia leakage and water curtain are sprayed and carries out simultaneously, be identical with reality scene, gained is theoretical and data are more reliable.
Utility model content
The purpose of this utility model is: in order to simulate ammonia actual leakage scene, ammonia leakage and water curtain are sprayed carry out simultaneously, be identical with reality scene, and the authentic data that can obtain leaking ammonia decontamination, the utility model provides the proving installation that ammonia effect is leaked in a kind of water curtain decontamination.
To achieve these goals, the utility model is by the following technical solutions:
A proving installation for ammonia effect is leaked in water curtain decontamination, and described proving installation is placed in airtight simulation ammonia leakage space, is made up of ammonia leakage system, water curtain system and ammonia concentration data acquisition system (DAS); Described ammonia leakage system, by ammonia bottle, the ammonia special pressure reducing valve being fixed on ammonia bottle exit, is located at the rotor gas meter on pipeline and the ammonia leakage mouth at line ports place forms; Described water curtain system connects water tank by water pipe and shower nozzle is formed, and between water tank and shower nozzle, be provided with water pump and tensimeter; Described ammonia concentration data acquisition system (DAS) comprises ammonia concentration sensor, data acquisition module and computer data processing system.
Ammonia bottle provides ammonia for proving installation, and ammonia special pressure reducing valve is loaded on ammonia bottle exit, for the safe operation of system provides safeguard.In addition, cartridge rotor gas meter between ammonia bottle and ammonia leakage mouth, controls the leakage that ammonia is continual and steady.
Consider frictional static problem, leaking flow velocity can not be large, and has electrostatic grounding facility.
The ammonia that the utility model uses is the mixed gas of ammonia and the nitrogen provided purchased from Nanjing riel special gas company limited.Because the aerial lower explosive limit of ammonia is 15.7%, consider safety problem, therefore the concentration of ammonia is 10%, the steel cylinder capacity of gas is 40L.
The ammonia concentration sensor that the utility model adopts is the TDT-200 type toxic gas detecting alarm produced purchased from Beijing Ripewell Instrumentation Co., Ltd., is used for detecting the concentration of ammonia at this.TDT type toxic gas detecting alarm is industrial safety detecting instrument.This instrument can be fixedly mounted on the hazardous area that toxic gas leaks, the leak condition of round-the-clock monitoring toxic gas.The electrochemical transducer[sensor that the probe of alarm adopts Britain original-pack, when monitoring that on-the-spot generation toxic and harmful leaks, sensor produces the 4-20mA electric signal with the concentration direct proportionality of gas leakage, this electric signal is transformed into signal and exports by warning horn, is exported by the computing machine or instrument that can receive standard signal.This alarm circuit adopts " three-wire system " working method, and hardware comprises the extensive single-chip microcomputer such as A/D, D/A, EOM, temperature detection, amplification and driving, control circuit etc.The output signal of detecting sensor at any time at work, when recording concentration and reaching the concentration pre-set, alarm will provide the display reminding of warning, microprocessor makes the normal opened contact of relay close and send and exports control signal accordingly simultaneously, manipulation personnel can take Security Countermeasures or automatically control, thus play the effect ensureing safety in production.Monitoring of environmental temperature and tested gas concentration simultaneously, thus carry out temperature adjustmemt.
When tested gas concentration value exceedes 5% of alarm range, alarm will provide the display reminding of outrange.When some reasons cause the negative offset value at zero point of sensor to exceed 5% of transducer range, then can point out deficient range.When a fault is found, alarm will provide fault alarm prompting and export corresponding signal (being less than 2mA), with notification terminal by 4-20mA.
The data acquisition module that the utility model adopts is made up of signal acquisition module and signal conversion module, and the model purchased from Beijing Collihigh Sensor Technology Co., Ltd. is the signal acquisition module of KL8017 and the signal conversion module of BP7520.
KL8017 is a analog acquisition module, simulation and communication is combined, and input signal is DC current.High-precision original paper makes KL8017 have good precision; Complete safeguard measure has all been done in point source, communication and importation; make module in the application safer, stable, model structural design is reasonable; be convenient to in-site installation and debugging, its effect is that then the collection of sensor is transferred to computing machine, can meet the requirement of multiple detection system.
BP-7520 signal converter is the high performance isolating converter designed for commercial Application specially; RS-232 signal can be changed into the RS-485 signal of isolation by pellucidly; bi-directional conversion; and add surge protection function; the equipment such as the effective protection calculation machine of energy; without the need to changing any software and hardware of connection device, easily making 232 equipment access RS-485 networks, setting up the remote monitoring system of technical grade.
The data acquisition software that the utility model adopts is the MCGS configuration software of the refreshed company limited in the Kunlun, Beijing research and development, and MCGS software is applicable to Windows system, can generate supervisory system fast.Its major function is monitoring, gathers, processes field data.Its major advantage is: simple operation and comprehensive functionalization, can combine easily monitor scene with monitoring instrument.
As further improvement of the utility model, ammonia leakage mouth, shower nozzle and ammonia concentration sensor are placed in containment housing.
As further improvement of the utility model, the setting height(from bottom) of described ammonia concentration sensor is higher than shower nozzle.This is designed with and is beneficial to the disposition that ammonia in containment housing monitored in time by ammonia concentration sensor.
As further improvement of the utility model, wherein the setting height(from bottom) of shower nozzle is higher than ammonia leakage mouth.This is designed with and is beneficial to the water sprayed in shower nozzle and fully contacts with the ammonia that ammonia leakage mouth discharges, thus can improve the decontamination efficiency of ammonia.
As further improvement of the utility model, above containment housing, be provided with ventilated box, and in ventilating opening place, explosion-proof fan be housed.It is complete in confined space that ammonia measure of merit device is leaked in the utility model decontamination, and simulated leakage space entirety is built on stilts, and be above the ground level, there is small finedraw at floor, bottom and surroundings wall edge conjunction place, makes the inside and outside maintenance in space air pressure balance.Limited leakage space top is taper and is connected to ventilated box at top, and at ventilating opening, place is provided with explosion-proof fan, its role is to, and clears up leakage space or occur to purge lab space when leaking after simulation test terminates.Because ammonia is a kind of combustion explosion gas, therefore in order to ensure the security of experiment, explosion-proof fan selected by blower fan.
As further improvement of the utility model, the frequency of operation of described explosion-proof fan is realized by computer data processing system regulation and control frequency converter.
As further improvement of the utility model, containment housing one side is provided with openable hermatic door, and is provided with view window thereon.When adopting proving installation described in the utility model to test, needing to close hermatic door, can observe decontamination process through view window.
As further improvement of the utility model, described shower nozzle is fan-shaped.Fan-shapedly be designed with the surface of contact being beneficial to and increasing water curtain and ammonia, thus raising decontamination efficiency.
In system described in the utility model, each parts all can be bought from market, and wherein the information of vitals is as shown in table 1:
The proving installation important spare part information of ammonia effect is leaked in the decontamination of table 1 water curtain
Instrument | Producer | Model | Range | Precision |
Ammonia concentration sensor | Beijing Ripewell Instrumentation Co., Ltd. | TDT-200 | 0-1000*10 -6 | ±5% |
Signal converter | Beijing Collihigh Sensor Technology Co., Ltd. | I-7017 | 40-20mA | ±0.02% |
Data acquisition module is united | The refreshed company limited in the Kunlun, Beijing | MCGS dynamic assembly | ---—— | —— |
Rotor gas meter | Changzhou Coudé thermal meter company limited | LZB-3WB | 0.3-3L/min | 4 grades |
Drencher | The pretty pool spraying company limited in Shandong | Customization ZXTM type | —— | —— |
Ammonia special pressure reducing valve | Shanghai Tian Chuan instrucment and meter plant | YQA-441 | 0-1MPa | 0.05MPa |
In addition, forbid the existence of all incendiary sources in experimentation, experimenter must wear cotton working cloth, is equipped with respirator.
beneficial effect
The proving installation of ammonia effect is leaked in a kind of water curtain decontamination that the utility model provides, and has the following advantages:
(1) described proving installation simulation ammonia actual leakage scene, ammonia leakage and water curtain are sprayed and carries out simultaneously, be identical with reality scene, gained is theoretical and data are more reliable, and test easily completes, and can promote the use of;
(2) the utility model employing ammonia special pressure reducing valve and rotor gas meter can ensure that ammonia leakage system stability discharges ammonia, security of system is effectively run;
(3) the utility model is by being connected to the frequency of operation of the Frequency Converter Control explosion-proof fan on computer processing system, thus can clear up leakage space in time or occur to purge lab space when leaking after simulation test terminates;
(4) water curtain system described in the utility model high efficiency decontamination can leak ammonia.
Accompanying drawing explanation
Fig. 1 is the proving installation schematic diagram that ammonia effect is leaked in water curtain decontamination;
Wherein, 1 is ammonia bottle, and 2 is ammonia special pressure reducing valve, and 3 is rotor gas meter, 4 is pipeline, and 5 is ammonia leakage mouth, and 6 is water tank, 7 is shower nozzle, and 8 is tensimeter, and 9 is water pump, 10 is water pipe, and 11 is ammonia concentration sensor, and 12 is data acquisition module, 13 is computer data processing system, and 14 is ventilated box, and 15 is explosion-proof fan, 16 is frequency converter, and 17 is containment housing, and 18 is view window.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
Embodiment 1
As shown in Figure 1, the proving installation of ammonia effect is leaked in a kind of water curtain decontamination, and described proving installation is placed in airtight simulation ammonia leakage space, is made up of ammonia leakage system, water curtain system and ammonia concentration data acquisition system (DAS); Described ammonia leakage system, by ammonia bottle 1, the ammonia special pressure reducing valve 2 being fixed on ammonia bottle 1 exit, is located at the rotor gas meter 3 on pipeline 4 and forms at the ammonia leakage mouth 5 of pipeline 4 port; Described water curtain system connects water tank 6 by water pipe 10 and shower nozzle 7 is formed, and between water tank 6 and shower nozzle 7, be provided with water pump 9 and tensimeter 8; Described ammonia concentration data acquisition system (DAS) comprises ammonia concentration sensor 11, data acquisition module 12 and computer data processing system 13.
Wherein, ammonia leakage mouth 5, shower nozzle 7 and ammonia concentration sensor 11 are placed in containment housing 17, and the setting height(from bottom) of described ammonia concentration sensor 11 is higher than shower nozzle 7, and the setting height(from bottom) of shower nozzle 7 is higher than ammonia leakage mouth 5, and described shower nozzle 7 is fan-shaped.
In addition, above containment housing 17, be provided with ventilated box 14, and in ventilating opening place, explosion-proof fan 15 be housed.The frequency of operation of described explosion-proof fan 15 regulates and controls frequency converter 16 by computer data processing system 13 and realizes.
Containment housing 17 one side is provided with openable hermatic door, and is provided with view window 18 thereon.
Embodiment 2
The effect of proving installation to water curtain decontamination ammonia that ammonia effect is leaked in above-mentioned water curtain decontamination is adopted to test.
Because ammonia is toxic gas, as human contact or after sucking a small amount of ammonia, all can produce bad reaction, people time serious, may be made fatal.And discharge in this relatively airtight environment of restricted clearance, test has certain danger, especially carries out instrument layout with when checking when needs enter space, if ammonia concentration is too high, may cause suffocating or intoxication accident of experimenter.Therefore safety problem is most important, must be noted that following item:
(1) guarantee that the sealing of the link such as ammonia special pressure reducing valve 2, pipeline 4, rotor gas meter 3 used in experiment is good;
(2) first open ammonia special pressure reducing valve 2 when air release, rear adjustment rotor gas meter 3, first closes ammonia special pressure reducing valve 2 when closedown, is equipped with respirator during operation;
(3) experimental field ammonia bottle 1 need fix, and guards against placement shakiness and causes its shock that topples;
(4) need many people simultaneously on the scene during experiment, can not a people test alone, try to avert accidents, Nobody Knows;
(5) operate in strict accordance with experimental implementation rules, will check after experiment and close all water, electricity, gas;
(6) ammonia concentration sensor 11 is kept properly according to direction memory, to guarantee its precision;
(7) to slowly regulate rotor gas meter 3 when opening ammonia bottle 1, avoid gas concentration to leap up suddenly height, ensure stable leakage as far as possible;
(8) when occurring to leak, after experimenter need wear ammonia respirator, first close ammonia special pressure reducing valve 2, then open explosion-proof fan 15 pairs of lab spaces and purge, withdraw from experimental field rapidly simultaneously.
With reference to Fig. 1, operating process is as follows:
(1) check whether ammonia leakage system, water curtain system connect airtight;
(2) check that whether connection is good, can computer data processing system 13 record data;
(3) open the power supply of ammonia concentration sensor 11, preheating 3 minutes, observe ammonia concentration sensor 11 whether consistent with the data on acquisition software;
(4) all check normally, regulate the instrument such as ammonia special pressure reducing valve 2 and rotor gas meter 3, make parameters reach predetermined value;
(5) prepare water curtain decontamination solution, make additive solution dissolve completely and be uniformly dispersed;
(6) opening ammonia bottle 1, regulating ammonia leakage speed to testing setting value;
(7) connect the power supply of water pump 9, open water curtain, carry out decontamination;
(8) ammonia starts to leak rear experimenter and need leave leakage space and fasten side door, opens water curtain after ammonia leakage 2min, ammonia continue to leak until when pre-configured additive solution has sprayed and water curtain close simultaneously;
(9), after experiment terminates, data are preserved;
(10) open explosion-proof fan 15 pairs of leakage space to ventilate, make ammonia concentration in space return to atmospheric environment;
(11) close source of the gas and computing machine, arrange test site.
Claims (8)
1. a proving installation for ammonia effect is leaked in water curtain decontamination, and it is characterized in that, described proving installation is placed in airtight simulation ammonia leakage space, is made up of ammonia leakage system, water curtain system and ammonia concentration data acquisition system (DAS); Described ammonia leakage system, by ammonia bottle (1), the ammonia special pressure reducing valve (2) being fixed on ammonia bottle (1) exit, is located at the rotor gas meter (3) on pipeline (4) and the ammonia leakage mouth (5) in pipeline (4) port forms; Described water curtain system connects water tank (6) by water pipe (10) and shower nozzle (7) is formed, and between water tank (6) and shower nozzle (7), be provided with water pump (9) and tensimeter (8); Described ammonia concentration data acquisition system (DAS) comprises ammonia concentration sensor (11), data acquisition module (12) and computer data processing system (13).
2. the proving installation of ammonia effect is leaked in a kind of water curtain decontamination according to claim 1, and it is characterized in that, ammonia leakage mouth (5), shower nozzle (7) and ammonia concentration sensor (11) are placed in containment housing (17).
3. according to claim 1 or 2, the proving installation of ammonia effect is leaked in a kind of water curtain decontamination, and it is characterized in that, the setting height(from bottom) of described ammonia concentration sensor (11) is higher than shower nozzle (7).
4. according to claim 1 or 2, the proving installation of ammonia effect is leaked in a kind of water curtain decontamination, and it is characterized in that, wherein the setting height(from bottom) of shower nozzle (7) is higher than ammonia leakage mouth (5).
5. the proving installation of ammonia effect is leaked in a kind of water curtain decontamination according to claim 1, it is characterized in that, is provided with ventilated box (14), and in ventilating opening place, explosion-proof fan (15) is housed in containment housing (17) top.
6. the proving installation of ammonia effect is leaked in a kind of water curtain decontamination according to claim 5, it is characterized in that, the frequency of operation of described explosion-proof fan (15) is realized by computer data processing system (13) regulation and control frequency converter (16).
7. the proving installation of ammonia effect is leaked in a kind of water curtain decontamination according to claim 1, it is characterized in that, containment housing (17) one side is provided with openable hermatic door, and is provided with view window (18) thereon.
8. according to claim 1 or 2, the proving installation of ammonia effect is leaked in a kind of water curtain decontamination, and it is characterized in that, described shower nozzle (7) is for fan-shaped.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105259308A (en) * | 2015-10-15 | 2016-01-20 | 南京工业大学 | Test system for effect of decontaminating leaked ammonia gas with water curtain |
CN111257516A (en) * | 2020-02-27 | 2020-06-09 | 浙江浙能嘉华发电有限公司 | Ammonia gas leakage detection equipment and detection method |
CN112782348A (en) * | 2019-11-06 | 2021-05-11 | 中国石油化工股份有限公司 | Hydrogen sulfide leakage monitoring and catching and eliminating test system and method |
-
2015
- 2015-10-15 CN CN201520794958.2U patent/CN204989153U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105259308A (en) * | 2015-10-15 | 2016-01-20 | 南京工业大学 | Test system for effect of decontaminating leaked ammonia gas with water curtain |
CN112782348A (en) * | 2019-11-06 | 2021-05-11 | 中国石油化工股份有限公司 | Hydrogen sulfide leakage monitoring and catching and eliminating test system and method |
CN111257516A (en) * | 2020-02-27 | 2020-06-09 | 浙江浙能嘉华发电有限公司 | Ammonia gas leakage detection equipment and detection method |
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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: 20160120 Termination date: 20181015 |