CN108759441A - Drying device and method - Google Patents
Drying device and method Download PDFInfo
- Publication number
- CN108759441A CN108759441A CN201810346323.4A CN201810346323A CN108759441A CN 108759441 A CN108759441 A CN 108759441A CN 201810346323 A CN201810346323 A CN 201810346323A CN 108759441 A CN108759441 A CN 108759441A
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- CN
- China
- Prior art keywords
- heat exchanger
- air
- pressure
- dry
- compressor
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/003—Supply-air or gas filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention provides a kind of drying device, is used for dry hothouse：Including compressor one, compressor two, expanding machine, heat exchanger and filter, the dry air passage mutually to exchange heat and humid air channel are provided in heat exchanger, the dry air passage import being connected to dry air passage and dry air passage outlet are provided on heat exchanger, the humid air channel entrance being connected to humid air channel and humid air channel outlet are provided on heat exchanger, hothouse outlet is connect with filter inlet, filter outlet is connect with one import of compressor, the outlet of compressor one is connect with two import of compressor, the outlet of compressor two is connect with the humid air channel entrance of heat exchanger, heat exchanger humid air channel outlet is connect with expander inlet, expanding machine is connect with compressor two.The present invention also provides a kind of drying means, humid air passes through hothouse, filter, compressor one, compressor two, heat exchanger and expanding machine successively.The present invention can recycle the thermal energy of dry waste gas.
Description
Technical field
The present invention relates to a kind of drying device and method, the humid air generated using compressor compresses hothouse makes its temperature
After spending pressure rise, dry air is heated in heat exchanger, temperature is sent into hothouse dried material after increasing.
Background technology
Hot-air is common heat-carrying matter in dry materials, have many advantages, such as it is cheap, be easy to get, property is stable, non-toxic and tasteless.
But air, which makees heat-carrying matter, also deficiency, and the exhaust gas after drying will take away partial heat energy, since exhaust gas temperature is relatively low, this portion of energy
It tends not to effectively recycle, causes drying device and method energy consumption higher.In addition, containing aerobic in air, to certain dry materials
When, oxidation is had, quality is influenced in various degree.
Superheated steam is the steam that temperature corresponds to saturation temperature higher than residing pressure, itself is not oxygen-containing, is neutral medium, is used
There are various advantages in the dry heat of material.But conventional superheat steam drying need to consume thermal energy and generate superheated steam, it is dry
Heat energy from waste gas afterwards is not easily recycled utilization.
Heat pump drying has the advantages that energy-efficient, but the working medium that uses of heat pump is often flammable at present or GWP (global warmings
Index) value is higher, has greenhouse effects, or even has destruction to atmospheric ozone.
Therefore, it is necessary to be improved to the prior art.
Invention content
The technical problem to be solved in the present invention is to provide the drying devices and method of a kind of recompression of humid air.
In order to solve the above technical problems, the present invention provides a kind of drying device, it is used for dry hothouse：Including compressor
One, compressor two, expanding machine, heat exchanger and filter；
It is provided with the dry air passage mutually to exchange heat and humid air channel in the heat exchanger, is provided with and does on heat exchanger
The dry air passage import and dry air passage outlet of air duct connection is provided on heat exchanger and is connected to humid air channel
Humid air channel entrance and humid air channel outlet；
The hothouse outlet is connect with filter inlet；The filter outlet is connect with one import of compressor, compression
The outlet of machine one is connect with two import of compressor, and the outlet of compressor two is connect with the humid air channel entrance of heat exchanger, and heat exchanger is wet
Air channel outlet is connect with expander inlet；
The expanding machine is connect with compressor two.
As the improvement to drying device of the present invention：It further include heater；The expander outlet and heat exchanger dry air
Channel entrance connects；Dry air passage outlet by after heater with hothouse inlet communication.
It is further improved as to drying device of the present invention：The heat exchanger is fin tube type, plate-fin, board-like or micro-
Channel-type heat exchanger.
It is further improved as to drying device of the present invention：The heat exchanger is oval tube fin pipe heat exchanger.
The present invention also provides a kind of drying means, include the following steps：
1) it after, the humid air being discharged from hothouse is filtered, into compressor one, after being pre-compressed, enters back into
Compressor two further compresses, and temperature, pressure increases, and becomes Moist Air at High Temperature and Pressure；
2), Moist Air at High Temperature and Pressure enters the humid air channel of heat exchanger by humid air channel entrance, to heat exchanger
After material to be heated in dry air passage releases heat, Moist Air at High Temperature and Pressure cools, in Moist Air at High Temperature and Pressure
At being discharged after liquid, Moist Air at High Temperature and Pressure becomes dewatered high pressure dry air for water recovery；
3), dewatered high pressure dry air is flowed out from the humid air channel outlet of heat exchanger, into expander work done,
To drive compressor one；The temperature and pressure of dewatered high pressure dry air reduces, and becomes the discharge of low-temp low-pressure dry air.
As the improvement to drying device of the present invention：Include the following steps：
1) after, the humid air being discharged from hothouse first passes through filter filtering, compressor one is entered back into, after being pre-compressed, then
It is further compressed into compressor two, temperature, pressure increases, and becomes Moist Air at High Temperature and Pressure；
2), Moist Air at High Temperature and Pressure enters the humid air channel of heat exchanger by the humid air channel entrance of heat exchanger, to
After low-temp low-pressure dry air in the dry air passage of heat exchanger releases heat, the cooled cooling of Moist Air at High Temperature and Pressure, high temperature
At being discharged after liquid, Moist Air at High Temperature and Pressure becomes dewatered high pressure dry air for water recovery in high pressure wet air；
3), dewatered high pressure dry air is flowed out from the humid air channel outlet of heat exchanger, into expander work done,
To drive compressor one；The temperature and pressure of dewatered high pressure dry air reduces, and becomes low-temp low-pressure dry air, by dry
Air passage inlet enters the dry air passage of heat exchanger, the heat of the humid air channel high temperature high pressure wet air of absorption heat-exchange device
After amount, become medium temperature low pressure dry air；
4), medium temperature low pressure dry air is exported from dry air passage and is flowed out, and hence into hothouse, medium temperature low pressure dry air is inhaled
Become humid air after receiving dry indoor moisture, filter is exited into from hothouse outlet.
It is further improved as to drying means of the present invention：Upon power-up of the system, heater starting, provide heat to
Heat the air from dry air passage outlet outflow；When system normal operating condition, heater is closed.
The technical advantage of drying device of the present invention and method is：
The present invention realizes the complete recycling of dry waste gas energy, can be widely applied to textile printing and dyeing, chemical industry, agricultural product add
The fields such as work have flow simple, the features such as working service facilitates, and are a kind of energy-efficient drying device and method and side
Method；
1, the heat of dry waste gas is recycled by the way of compressing humid air (dry waste gas), heating dry air within the condenser
Energy；
2, dry air is that exhaust gas is compressed, obtained after reflation after condensation dehydration；
3, it recycles work done during compression using expanding machine and precommpression is carried out to exhaust gas, reduce compressor power consumption.
Description of the drawings
The specific implementation mode of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is drying device of the present invention and the systematic schematic diagram of method；
Fig. 2 is the systematic schematic diagram of humid air energy-recuperation system.
Specific implementation mode
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This.
Embodiment 1, drying device, as shown in Figure 1, it is used for hothouse 1, including compressor 1, compressor 24, expansion
Machine 3, heat exchanger 5, heater 6 and filter 7.
The dry air passage import 53 being connected to dry air passage and dry air passage outlet 54 are provided on heat exchanger 5,
The humid air channel entrance 51 being connected to humid air channel and humid air channel outlet 52 are provided on heat exchanger 5.
The outlet of hothouse 1 is connect with 7 import of filter, and the outlet of filter 7 is connect with one 2 import of compressor, compressor 1
Outlet is connect with one 4 import of compressor, and the outlet of compressor 1 is connect with 5 humid air channel entrance 51 of heat exchanger, and heat exchanger 5 is wet
Air channel outlet 52 is connect with 3 import of expanding machine, and the outlet of expanding machine 3 is connect with 5 dry air passage import 53 of heat exchanger, is exchanged heat
5 dry air passage of device outlet 54 is connect after heater 6 with 1 import of hothouse.
Expanding machine 3 is connect with compressor 1, and expanding machine 3 can drive compressor 1 to run.
Heat exchanger 5 is fin tube type, plate-fin, board-like or micropassage type, and further, fin-tube heat exchanger can be with
Using elliptical tube, to reduce air flow resistance, augmentation of heat transfer.
Drying means of the present invention is：
When system starts, heater 6 starts, and provides heat air.Into after normal operating condition, heater 6 stops
Only work.
When drying device normal operation, the humid air being discharged from hothouse 1 enters compressor 1 after the filtering of filter 7,
After being pre-compressed, further compressed into compressor 24, temperature, pressure increases, and becomes Moist Air at High Temperature and Pressure；
Moist Air at High Temperature and Pressure enters the humid air channel of heat exchanger 5 by the humid air channel entrance 51 of heat exchanger 5, to
After low-temp low-pressure dry air in the dry air passage of heat exchanger 5 releases heat, the cooled cooling of Moist Air at High Temperature and Pressure, high temperature
At being discharged after liquid, humid air becomes dewatered high pressure dry air for water recovery in high pressure wet air；
Dewatered high pressure dry air is flowed out from the humid air channel outlet 52 of heat exchanger 5, is expanded and is made into expanding machine 3
Work(, to drive compressor 1, dewatered high pressure dry air is after expansion working, temperature and pressure reduce in expanding machine 3,
As low-temp low-pressure dry air, the dry air passage of heat exchanger 5 is entered by dry air passage import 53, absorption heat-exchange device 5
After the heat of humid air channel high temperature high pressure wet air, become medium temperature low pressure dry air；
Medium temperature low pressure dry air from dry air passage outlet 54 outflow after enter hothouse 1 (when whole system just starts,
Heater 6 is needed to provide heat air, into after normal operating condition, heater 6 is stopped), the dry sky of medium temperature low pressure
Become humid air after moisture in aspiration hothouse 1, compressor 1 is exited into from the outlet of hothouse 1.
The present invention uses air for medium (can also use the inert gases such as nitrogen or carbon dioxide), avoids conventional heat
Pump that the refrigerant employed in drying device is flammable, destroys atmospheric ozone layer, the unfavorable factors such as greenhouse gases effect, safety, ring
It protects；The present invention is based on heat pump principle, the humid air being discharged by compression drying room make its temperature, pressure increase after in condenser
It condenses heat release and heats dry air, realize 100% recycling of exhaust energy, overcome at present using steam or fuel heating air
Hot-air drying device in, since temperature is relatively low, heat transfer temperature difference is smaller, and the exhaust energy rate of recovery is relatively low, drying system energy effect
The low deficiency of rate；The present invention by electric drive, does not need the processing etc. of the transport and transmission & distribution and combustion residue of fuel completely,
Smokeless also need not handle a large amount of steam condensates, it can be achieved that fully automatic operation, maintenance management are very convenient.
The present invention also provides a kind of humid air energy-recuperation system, it can be used for recycling heat energy from waste gas and heat other materials
(such as water), as shown in Figure 2.It is used for dry hothouse 1, including compressor 1, compressor 24, expanding machine 3 and heat exchanger
5。
The dry air passage import 53 being connected to dry air passage and dry air passage outlet 54 are provided on heat exchanger 5,
The humid air channel entrance 51 being connected to humid air channel and humid air channel outlet 52 are provided on heat exchanger 5.Dry air is logical
What road was passed through at this time is unclassified stores (such as water) to be heated.
The outlet of hothouse 1 is connect with 7 import of filter, and the outlet of filter 7 is connect with one 2 import of compressor, compressor 1
Outlet is connect with one 4 import of compressor, and the outlet of compressor 1 is connect with 5 humid air channel entrance 51 of heat exchanger, and heat exchanger 5 is wet
Air channel outlet 52 is connect with 3 import of expanding machine, and the outlet of expanding machine 3 is connect with the dry air passage import 53 of heat exchanger 5, is changed
The dry air passage outlet 54 of hot device 5 is connect after heater 6 with 1 import of hothouse.
Expanding machine 3 is connect with compressor 1, and expanding machine 3 can drive compressor 1 to run.
The exhaust gas that hothouse 1 is discharged, after the filtering of filter 7, into compressor 1, after being pre-compressed, into compressor
One 4 further compressions, temperature, pressure increase, and become Moist Air at High Temperature and Pressure；
Moist Air at High Temperature and Pressure enters the humid air channel of heat exchanger 5 by the humid air channel entrance 51 of heat exchanger 5, to
The water of the dry air passage of heat exchanger 5, after releasing heat, Moist Air at High Temperature and Pressure is cooled to cool down, in Moist Air at High Temperature and Pressure
Water recovery at being discharged after liquid, humid air becomes dewatered high pressure dry air；
Dewatered high pressure dry air is flowed out from the humid air channel outlet 52 of heat exchanger 5, is expanded and is made into expanding machine 3
Work(, to drive compressor 1, dewatered high pressure dry air is after expansion working, temperature and pressure reduce in expanding machine 3,
It is discharged as low-temp low-pressure dry air.
Finally, it should also be noted that it is listed above be only the present invention several specific embodiments.Obviously, this hair
Bright to be not limited to above example, acceptable there are many deformations.Those skilled in the art can be from present disclosure
All deformations for directly exporting or associating, are considered as protection scope of the present invention.
Claims (7)
1. drying device is used for dry hothouse (1), it is characterised in that：Including compressor one (2), compressor two (4), swollen
Swollen machine (3), heat exchanger (5) and filter (7)；
The dry air passage mutually to exchange heat and humid air channel are provided in the heat exchanger (5), be provided on heat exchanger (5) with
The dry air passage import (53) of dry air passage connection and dry air passage export (54), be provided on heat exchanger (5) with it is wet
The humid air channel entrance (51) and humid air channel outlet (52) of air duct connection；
Hothouse (1) outlet is connect with filter (7) import；Filter (7) outlet connects with compressor one (2) import
It connects, compressor one (2) outlet is connect with compressor two (4) import, and compressor two (4) outlet and the humid air of heat exchanger (5) are logical
Road import (51) connects, and heat exchanger (5) humid air channel outlet (52) is connect with expanding machine (3) import；
The expanding machine (3) connect with compressor two (2).
2. drying device according to claim 1, it is characterised in that：Further include heater (6)；The expanding machine (3) goes out
Mouth is connect with heat exchanger (5) dry air passage import (53)；Dry air passage outlet (54) by heater (6) afterwards with it is dry
Dry room (1) inlet communication.
3. drying device according to claim 1 or 2, it is characterised in that：The heat exchanger (5) is fin tube type, plate wing
Formula, board-like or micro-channel type heat exchanger.
4. drying device according to claim 3, it is characterised in that：The heat exchanger (5) is that oval tube fin tubular type is changed
Hot device.
5. utilizing the drying means of drying device as described in claim 1, which is characterized in that include the following steps：
1), from the humid air that hothouse (1) is discharged after filter (7) filtering, into compressor one (2), after being pre-compressed, then
It is further compressed into compressor two (4), temperature, pressure increases, and becomes Moist Air at High Temperature and Pressure；
2), Moist Air at High Temperature and Pressure enters the humid air channel of heat exchanger (5) by humid air channel entrance (51), to heat exchanger
(5) after the material to be heated in dry air passage releases heat, Moist Air at High Temperature and Pressure cools, Moist Air at High Temperature and Pressure
In water recovery at being discharged after liquid, Moist Air at High Temperature and Pressure becomes dewatered high pressure dry air；
3), dewatered high pressure dry air is flowed out from the humid air channel outlet (52) of heat exchanger (5), swollen into expanding machine (3)
Swollen work done, to drive compressor one (2)；The temperature and pressure of dewatered high pressure dry air reduces, and it is dry to become low-temp low-pressure
Air is discharged.
6. utilizing the drying means of drying device as claimed in claim 2, which is characterized in that include the following steps：
1) after, the humid air being discharged from hothouse (1) first passes through filter (7) filtering, compressor one (2) is entered back into, is pre-compressed
Afterwards, it enters back into compressor two (4) further to compress, temperature, pressure increases, and becomes Moist Air at High Temperature and Pressure；
2), Moist Air at High Temperature and Pressure is logical by the humid air of humid air channel entrance (51) into the heat exchanger (5) of heat exchanger (5)
Road, after the low-temp low-pressure dry air into the dry air passage of heat exchanger (5) releases heat, the cooled drop of Moist Air at High Temperature and Pressure
Temperature, at being discharged after liquid, Moist Air at High Temperature and Pressure press dry the water recovery in Moist Air at High Temperature and Pressure as dewatered height
Air；
3), dewatered high pressure dry air is flowed out from the humid air channel outlet (52) of heat exchanger (5), swollen into expanding machine (3)
Swollen work done, to drive compressor one (2)；The temperature and pressure of dewatered high pressure dry air reduces, and it is dry to become low-temp low-pressure
Air, the dry air passage of heat exchanger (5) is entered by dry air passage import (53), and the humid air of absorption heat-exchange device (5) is logical
After the heat of road high temperature high pressure wet air, become medium temperature low pressure dry air；
4), medium temperature low pressure dry air is flowed out from dry air passage outlet (54), hence into hothouse (1), the dry sky of medium temperature low pressure
Become humid air after moisture in aspiration hothouse (1), filter (7) is exited into from hothouse (1) outlet.
7. drying means according to claim 6, it is characterised in that：Upon power-up of the system, heater (6) starts, and provides
The air that heat flows out to heating from dry air passage outlet (54)；When system normal operating condition, heater (6) closes
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346323.4A CN108759441A (en) | 2018-04-18 | 2018-04-18 | Drying device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346323.4A CN108759441A (en) | 2018-04-18 | 2018-04-18 | Drying device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108759441A true CN108759441A (en) | 2018-11-06 |
Family
ID=64010987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810346323.4A Withdrawn CN108759441A (en) | 2018-04-18 | 2018-04-18 | Drying device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108759441A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414031A (en) * | 2020-11-28 | 2021-02-26 | 广州星火实业有限公司 | Efficient dehydration energy-saving environment-friendly dryer |
| CN112484218A (en) * | 2020-11-30 | 2021-03-12 | 珠海卡洛斯工程咨询有限公司 | Heat pump air conditioner device for sterilizing and killing new corona virus at high temperature in building and closed space and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548630A (en) * | 2014-12-29 | 2015-04-29 | 高峰 | Energy-saving environment-friendly mist spray drying technology |
| CN204522325U (en) * | 2014-12-29 | 2015-08-05 | 高峰 | A kind of energy saving and environment friendly spraying drying system |
| JP2016056991A (en) * | 2014-09-09 | 2016-04-21 | 川崎重工業株式会社 | High temperature heat air drier |
| CN105758162A (en) * | 2016-03-07 | 2016-07-13 | 南京航空航天大学 | Water vapor vacuum rapid drying system and working method |
| CN107763891A (en) * | 2017-10-16 | 2018-03-06 | 清华大学 | A kind of air circulation compression net for air-source heat pump units |
-
2018
- 2018-04-18 CN CN201810346323.4A patent/CN108759441A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016056991A (en) * | 2014-09-09 | 2016-04-21 | 川崎重工業株式会社 | High temperature heat air drier |
| CN104548630A (en) * | 2014-12-29 | 2015-04-29 | 高峰 | Energy-saving environment-friendly mist spray drying technology |
| CN204522325U (en) * | 2014-12-29 | 2015-08-05 | 高峰 | A kind of energy saving and environment friendly spraying drying system |
| CN105758162A (en) * | 2016-03-07 | 2016-07-13 | 南京航空航天大学 | Water vapor vacuum rapid drying system and working method |
| CN107763891A (en) * | 2017-10-16 | 2018-03-06 | 清华大学 | A kind of air circulation compression net for air-source heat pump units |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414031A (en) * | 2020-11-28 | 2021-02-26 | 广州星火实业有限公司 | Efficient dehydration energy-saving environment-friendly dryer |
| CN112484218A (en) * | 2020-11-30 | 2021-03-12 | 珠海卡洛斯工程咨询有限公司 | Heat pump air conditioner device for sterilizing and killing new corona virus at high temperature in building and closed space and application thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20181106 |