CN106690394A - Quick dehumidifying and blowing type tobacco curing chamber - Google Patents
Quick dehumidifying and blowing type tobacco curing chamber Download PDFInfo
- Publication number
- CN106690394A CN106690394A CN201611158457.0A CN201611158457A CN106690394A CN 106690394 A CN106690394 A CN 106690394A CN 201611158457 A CN201611158457 A CN 201611158457A CN 106690394 A CN106690394 A CN 106690394A
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- Prior art keywords
- heat exchanger
- flow
- air
- tobacco
- dehumidifying
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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- Manufacture Of Tobacco Products (AREA)
Abstract
The invention relates to the technical field of tobacco curing, in particular to a quick dehumidifying and blowing type tobacco curing chamber. The quick dehumidifying and blowing type tobacco curing chamber comprises a tobacco curing chamber body, a first heat exchanger and a second heat exchanger, the first heat exchanger and the second heat exchanger are arranged in the tobacco curing chamber body, and a first fan blowing towards the first heat exchanger and the second heat exchanger is further arranged in the tobacco curing chamber body. By a third heat exchanger for airflow heat exchange and air inflowing, a dehumidifying device and a fan for inputting dehumidified airflow into the tobacco curing chamber body, a dehumidifying system recycles heat of damp and hot air in the third heat exchanger by means of heat transferring, the dehumidifying device is used for dehumidifying the damp and hot air, air treated by the dehumidifying system is recirculated to enter the tobacco curing chamber body by the aid of the fan, and accordingly circulation of energy and air is realized, and energy waste and fragrance overflow are avoided.
Description
Technical field
The present invention relates to the technical field of flue-cured tobacco, more particularly, to a kind of blowing of rapid moisture removal tobacco roasting between.
Background technology
Tobacco flue-curing house is indispensable basic equipment in cured tobacco production.Tobacco flue-curing house is by after interior baking modulation, just showing
The distinctive color of flue-cured tobacco, type, as the quality raw materials for meeting cigarette industry needs.Its general principle is after tobacco leaf is heated,
Moisture discharge in tobacco leaf, is discharged outside tobacco flue-curing house, so that tobacco leaf scalding, drying after moisture vaporization.
Heat and fragrance are taken away when but the hot and humid gas of tobacco flue-curing house are discharged, the circulation of the energy has been have impact on, made
Into the waste of energy.Many tobacco flue-curing houses are all being devoted to solving the problems, such as this respect now, but can Efficient Cycle utilize
The method and equipment of hot and humid gas energy are little, and cost of equipment is high and application method is generally more complicated, and practicality is low.
The content of the invention
The present invention is to overcome at least one defect described in above-mentioned prior art, there is provided a kind of tobacco of rapid moisture removal blowing
Baking room, heat utilization rate is high, and a water outlet is without going out fragrance；And can fast and effectively the hot and humid gas between tobacco roasting
Dehumidified, the heat energy of hot and humid gas can be recycled, and system architecture is simple, it is easy to use.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of tobacco roasting of rapid moisture removal blowing
Between, wherein, including between tobacco roasting, located between the interior first heat exchanger of tobacco roasting, second heat exchanger, tobacco roasting
Inside it is additionally provided with the first blower fan for blowing to first heat exchanger, second heat exchanger；
After dehumidification system is including the 3rd heat exchanger for air-flow heat exchange and air inlet, dehydrating unit and for that will dehumidify
Air-flow input tobacco roasting between blower fan；3rd heat exchanger is provided with for the first passage of damp and hot airflow and dry
The second channel that cold airflow or xeothermic air-flow pass through, the dehydrating unit is provided with the cold water stream for being dehumidified to damp-heat stream
Dynamic third channel and the fourth lane for damp and hot airflow, the first passage are connected with fourth lane, and described first
The air-flow of passage and the mutual heat exchange of the air-flow of second channel.
Internal heat exchanger between described tobacco roasting, including housing, have import and export end to be fixed on housing in housing
Dish type heat exchanger tube, the spiral groove of oriented body indent is distributed on dish type heat exchanger tube body.
Above-mentioned spiral groove groove depth be 0.5~3mm, spiral groove groove depth less than 0.6 ㎜ will influence flue gas with
The flowing of water, flowing of the flue gas between two heat exchanger tubes is only realized by the gap between dish type heat exchanger tube, if spacing
Too small, flow velocity is slow, and its flow of flue gas state is regarded as turbulent flow, will influence heat absorption, will also make the inequality of being heated of heat exchanger tube
It is even, cause service life and thermal efficiency reduction, spiral groove depth is more than 3mm, flowing of the flue gas between two heat exchanger tubes
Only realize, because spacing is big, flow velocity fast, thering is wind gap location flow of flue gas state to be regarded as by the gap between heat exchanger tube
Laminar flow, as gap becomes big, velocity of flue gas accelerates, and the flue gas distance heat exchange wall of gap center has not enough time to and wall farther out, also
Heat exchange area just flowed out and heat exchange in face there is.The viscosity of flue gas is deteriorated on wall, can directly result in heat-transfer effect decrease.
During present invention work, the flowing for flowing into the water in dish type heat exchanger tube is to be threadingly advanced, and increases the automatic stirring work(of water
Can, water is maintained at the temperature of 60-70 degree, when the first blower fan is dried, effectively preferably passes the heat of water in heat exchanger
In being delivered between tobacco roasting, heat transfer effect is good, and avoids water uttering long and high-pitched sounds in flow process, good muffling effect.
The processing of the dish type heat exchanger tube in the present invention is the same with normal pipe processing mode, it is possible to which cored axle is not used
Pattern is bent, and bending ratio is also similar with pipe.
Thermal source is first heat exchanger, second heat exchanger, and the effect of first heat exchanger and second heat exchanger is to release
Thermal discharge, so eliminates the heating chamber of traditional tobacco flue-curing house, increased using the space of flue-cured tobacco.
Further, the top between described first heat exchanger, second heat exchanger are lifted on tobacco roasting.Due to
Bottom between tobacco roasting will place tobacco curing frame or miscellaneous equipment, therefore, first heat exchanger, second heat exchanger are hung
Top mounted between tobacco roasting can save the space between tobacco roasting so that the circulation of heat is also more uniform.
Further, described first heat exchanger is located between the first blower fan and second heat exchanger.In this programme, the
One blower fan only has 1 air outlet, and air outlet blows to first heat exchanger, second heat exchanger successively, and then heat dries in tobacco
Inner loop flowing between roasting.
Dehumidification system of the invention, by the 3rd heat exchanger for air-flow heat exchange and air inlet, dehydrating unit with
And the setting of the blower fan for being input into the air-flow after dehumidifying between tobacco roasting so that dehumidification system utilizes heat transfer, will be damp and hot
The heat of gas is recycled in the 3rd heat exchanger, and hot and humid gas are dehumidified using dehydrating unit, will using blower fan
Between gas after dehumidification system treatment is re-circulated into tobacco roasting, the circulation of energy and gas is realized, it is to avoid energy wave
Take and fragrance overflows.And the dehumidification system simple structure between tobacco roasting of the invention, easy to use and low cost.
Preferably, the dehumidification system also includes the cold water tank for exporting cold water dehumidifying, and the dehydrating unit is provided with the
One input port and the first delivery outlet, first input port and the first delivery outlet are connected to form circulation by water pipe and cold water tank
System.So being disposed to dehydrating unit can keep the continuation and validity of dehumidifying, and using the cold water of cold water tank
Dehumidified, maintained the cleaning of environment.
Preferably, the 3rd heat exchanger is provided with the second entrance flowed into for baking room hot and humid gas.So set
It is in order to the damp and hot air-flow ensured between tobacco roasting is smoothly recycled into the 3rd heat exchanger, to carry out the heat exchange of energy
And into carrying out subsequent operation in dehydrating unit.
Present invention also offers a kind of application process of the dehumidification system between tobacco roasting, concretely comprise the following steps：
A. the damp-heat stream between tobacco roasting is input into the first passage of the 3rd heat exchanger by second entrance；
B. the damp-heat stream in first passage is entered in the fourth lane of dehydrating unit by feed channel；
C. the third channel for being used for the cold water flow of dehumidifying carries out cool-down dehumidification to the damp-heat stream in fourth lane, except remuval of damp and hot
Moisture in air-flow makes it become dry and cold air-flow；
D. dry and cold air-flow is back in the second channel of the 3rd heat exchanger by feed channel；
E. the dry and cold air-flow of second channel carries out heat exchange with the damp-heat stream for cycling through first passage, and dry and cold air-flow is heated
Into xeothermic air-flow；
F. xeothermic air-flow is input into blower fan by feed channel, between xeothermic air-flow to be input into blower fan tobacco roasting.
Preferably, the temperature range of the damp and hot air-flow is 60 °C ~ 70 °C.It should be noted that this temperature is tobacco
The temperature of the hot and humid gas of baking room, but the temperature difference between some tobacco roastings is understandable, because itself and cigarette
The equipment and seal degree of careless baking room etc. are relevant.
Preferably, the temperature of the cold water of the flowing of the third channel is 5 °C ~ 7 °C.Preferably, the third channel
The temperature of the cold water of flowing is 6 °C.It should be noted that this temperature is preferred, it is not unique restriction.
Preferably, the temperature of the dry and cold air-flow is 15 °C ~ 20 °C.This temperature is that damp and hot air-flow is dehumidified device dehumidifying
Temperature afterwards, but this is preferred, is not limited.
Preferably, the temperature of the xeothermic air-flow is 29 °C ~ 35 °C.It should be noted that by the 3rd heat exchanger, doing
The temperature of cold airflow gets a promotion, and improves temperature and is again introduced into baking room, has so both realized the cyclic code of energy, it also avoid
Fragrance overflows, and realizes recycling for energy and gas.
Preferably, the dehumidification system also include for by cold water tank cold water extract out the 3rd pump, the 3rd pump with
Cold water tank and the first input port are connected by water pipe.So it is disposed to be easy to extract cold water in cold water tank out, to enter
To enter dehumidify damp-heat stream in dehydrating unit.
Compared with prior art, beneficial effect is：The present invention is handed over by the 3rd heat for air-flow heat exchange and air inlet
The setting of parallel operation, dehydrating unit and the blower fan for being input into the air-flow after dehumidifying between tobacco roasting so that dehumidification system profit
With heat transfer, the heat of hot and humid gas is recycled in the 3rd heat exchanger, and hot and humid gas are carried out using dehydrating unit
Dehumidifying, between the gas after dehumidification system is processed using blower fan is re-circulated into tobacco roasting, realizes energy and gas
Circulation, it is to avoid energy dissipation and fragrance overflow.And the dehumidification system simple structure between tobacco roasting of the invention, it is easy to use
And low cost.And the application process of the system both facilitated, and environmentally friendly, recycling for heat is realized, and avoid fragrance
Overflow.
Thermal source of the present invention is the work of first heat exchanger, second heat exchanger, first heat exchanger and second heat exchanger
With being release heat, the heating chamber of traditional tobacco flue-curing house is so eliminated, increased using the space of flue-cured tobacco, heat utilization rate
It is high.
The spacing of two heat exchanger tubes is just fixed on a rational distance by the spiral groove concaved on tube body wall, makes cigarette
Gas is in outer tube Uniform Flow, it is ensured that the uniformity and increase smoke contacts area of heat exchange, improves heat exchange efficiency.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is heat converter structure schematic diagram.
Specific embodiment
Accompanying drawing being for illustration only property explanation, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by accompanying drawing.Being for illustration only property of position relationship described in accompanying drawing
Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in figure 1, between a kind of tobacco roasting of rapid moisture removal blowing, wherein, including 401 between tobacco roasting, located at cigarette
It is additionally provided with 401 between first heat exchanger 2, second heat exchanger 6 in careless baking room 401, tobacco roasting and blows to the first heat friendship
First blower fan 1 of parallel operation 2, second heat exchanger 6.
First heat exchanger 2, second heat exchanger 6 are lifted between tobacco roasting 401 top.
Dehumidification system is including the 3rd heat exchanger 13 for air-flow heat exchange and air inlet, dehydrating unit 12 and is used for
By the blower fan 11 between the air-flow input tobacco roasting after dehumidifying；3rd heat exchanger 13 is provided with for damp and hot airflow
The second channel 102 that first passage 101 and dry and cold air-flow or xeothermic air-flow pass through, the dehydrating unit 12 is provided with for damp and hot
The third channel 103 of the cold water flow that air-flow is dehumidified and the fourth lane 104 for damp and hot airflow, described first leads to
Road 101 is connected with fourth lane 104, the air-flow of the first passage 101 and the mutual heat exchange of air-flow of second channel 102.
Specifically, the dehumidification system also includes the cold water tank 17 for exporting cold water dehumidifying, and the dehydrating unit 12 sets
Have the first input port 105 and the first delivery outlet 106, the delivery outlet 106 of first input port 105 and first by water pipe with it is cold
Water pot 17 is connected to form the circulatory system.So be disposed to dehydrating unit 12 can keep dehumidifying continuation and effectively
Property, and cold water using cold water tank 17 dehumidified, and maintains the cleaning of environment.
Wherein, the 3rd heat exchanger 13 is provided with the second entrance 107 flowed into for the damp and hot air-flow of baking room.So set
Put be in order to ensure that the damp-heat stream between tobacco roasting is smoothly recycled into the 3rd heat exchanger 13 by second entrance 107,
To carry out the heat exchange of energy and into carrying out subsequent operation in dehydrating unit.
In addition, the present invention also provides a kind of application process of the dehumidification system between tobacco roasting, concretely comprise the following steps：
A. the damp-heat stream between tobacco roasting is input into the first passage 101 of the 3rd heat exchanger 13 by second entrance 107；
B. the damp-heat stream in first passage 101 is entered in the fourth lane 104 of dehydrating unit 12 by feed channel；
C. the third channel 103 for being used for the cold water flow of dehumidifying carries out cool-down dehumidification to the damp-heat stream in fourth lane, removes
Moisture in damp and hot air-flow makes it become dry and cold air-flow；
D. dry and cold air-flow is back in the second channel 102 of the 3rd heat exchanger 13 by feed channel；
E. the dry and cold air-flow of second channel 102 carries out heat exchange, dry and cold air-flow with the damp-heat stream for cycling through first passage 101
It is heated to form xeothermic air-flow；
F. xeothermic air-flow is input into blower fan 11 by feed channel, between xeothermic air-flow to be input into blower fan 11 tobacco roasting.
Wherein, the temperature range of the damp and hot air-flow is 60 °C ~ 70 °C.It should be noted that this temperature is tobacco drying
The temperature of the hot and humid gas between roasting, but the temperature difference between some tobacco roastings is understandable, because itself and tobacco
The equipment and seal degree of baking room etc. are relevant.
In addition, the temperature of the cold water of the flowing of the third channel 103 is 5 °C ~ 7 °C.Preferably, the third channel
The temperature of the cold water of 103 flowing is 6 °C.It should be noted that this temperature is preferred, it is not unique restriction.
Wherein, the temperature of the dry and cold air-flow is 15 °C ~ 20 °C.This temperature is after damp and hot air-flow is dehumidified device dehumidifying
Temperature, but this is preferred, is not limited.
In addition, the temperature of the xeothermic air-flow is 29 °C ~ 35 °C.It should be noted that by the 3rd heat exchanger 13, doing
The temperature of cold airflow gets a promotion, and improves temperature and is again introduced into baking room, has so both realized the cyclic code of energy, it also avoid
Fragrance overflows, and realizes recycling for energy and gas.
Wherein, the dehumidification system also includes the 3rd pump 16 for cold water in cold water tank 17 to be extracted out, the 3rd pump
16 are connected with the input port 105 of cold water tank 17 and first by water pipe.So it is disposed to be easy to cold water in cold water tank 17
Extract out, damp-heat stream is dehumidified in dehydrating unit 12 to enter.
As shown in Fig. 2 heat exchanger internal between tobacco roasting, including housing 402, there is import and export end to fix in housing
Dish type heat exchanger tube 403 on housing, is distributed the spiral groove 404 of oriented body indent on dish type heat exchanger tube body.
In the present embodiment, spiral groove groove depth is 0.5~3mm, and spiral groove groove depth will influence cigarette less than 0.6 ㎜
The flowing of gas and water, flue gas flowing only by the gap realization between dish type heat exchanger tube between two heat exchanger tubes, if
Spacing is too small, flow velocity is slow, and its flow of flue gas state is regarded as turbulent flow, will influence heat absorption, will also make being heated for heat exchanger tube
It is uneven, cause service life and thermal efficiency reduction, spiral groove depth is more than 3mm, and flue gas is between two heat exchanger tubes
Flowing only realizes, because spacing is big, flow velocity fast, having wind gap location flow of flue gas state to recognize by the gap between heat exchanger tube
To be laminar flow, as gap becomes big, velocity of flue gas accelerates, and the flue gas distance heat exchange wall of gap center also has not enough time to farther out
There is heat exchange with wall and just flowed out heat exchange area.The viscosity of flue gas is deteriorated on wall, can directly result in heat-transfer effect
Weaken.
During present invention work, the flowing for flowing into the water in dish type heat exchanger tube is to be threadingly advanced, and increases the automatic stirring work(of water
Can, water is maintained at the temperature of 60-70 degree, when the first blower fan is dried, effectively preferably passes the heat of water in heat exchanger
In being delivered between tobacco roasting, heat transfer effect is good, and avoids water uttering long and high-pitched sounds in flow process, good muffling effect.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.It is all this
Any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (4)
1. between a kind of tobacco roasting of rapid moisture removal blowing, it is characterised in that including between tobacco roasting（401）, located at tobacco dry
Between roasting（401）Interior first heat exchanger（2）, second heat exchanger（6）, between tobacco roasting（401）Inside it is additionally provided with and blows to first
Heat exchanger（2）, second heat exchanger（6）The first blower fan（1）；
Dehumidification system includes the 3rd heat exchanger for air-flow heat exchange and air inlet（13）, dehydrating unit（12）And be used for
By the blower fan between the air-flow input tobacco roasting after dehumidifying（11）；3rd heat exchanger（13）It is provided with for damp and hot air-flow stream
Logical first passage（101）The second channel passed through with dry and cold air-flow or xeothermic air-flow（102）, the dehydrating unit（12）It is provided with
The third channel of the cold water flow for being dehumidified to damp-heat stream（103）With the fourth lane for damp and hot airflow
（104）, the first passage（101）With fourth lane（104）Connection, the first passage（101）Air-flow and second channel
（102）The mutual heat exchange of air-flow；
Between described tobacco roasting（401）Internal heat exchanger, including housing（402）, there is import and export end to be fixed in housing
Dish type heat exchanger tube on housing（403）, the spiral groove of oriented body indent is distributed on dish type heat exchanger tube body（404）.
2. between a kind of tobacco roasting of rapid moisture removal blowing according to claim 1, it is characterised in that：The first described heat
Exchanger（2）, second heat exchanger（6）Between being lifted on tobacco roasting（401）Top.
3. between a kind of tobacco roasting of rapid moisture removal blowing according to claim 2, it is characterised in that：Described dehumidifying system
System also includes the cold water tank for exporting cold water dehumidifying（17）, the dehydrating unit（12）It is provided with the first input port（105）With
One delivery outlet（106）, first input port（105）With the first delivery outlet（106）Pass through water pipe and cold water tank（17）It is connected
Form the circulatory system.
4. between a kind of tobacco roasting of rapid moisture removal blowing according to claim 3, it is characterised in that：The 3rd described heat
Exchanger（13）It is provided with the second entrance flowed into for the damp and hot air-flow of baking room（107）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158457.0A CN106690394A (en) | 2016-12-15 | 2016-12-15 | Quick dehumidifying and blowing type tobacco curing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158457.0A CN106690394A (en) | 2016-12-15 | 2016-12-15 | Quick dehumidifying and blowing type tobacco curing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106690394A true CN106690394A (en) | 2017-05-24 |
Family
ID=58937788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611158457.0A Pending CN106690394A (en) | 2016-12-15 | 2016-12-15 | Quick dehumidifying and blowing type tobacco curing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106690394A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1444905A2 (en) * | 2003-02-05 | 2004-08-11 | British American Tobacco (Germany) GmbH | Pressure conditioning method and apparatus |
| CN204351053U (en) * | 2014-12-30 | 2015-05-27 | 云南中海路德科技有限公司 | For the heat sink of closed tobacco flue-curing house |
| CN204611974U (en) * | 2015-04-24 | 2015-09-02 | 浙江欧伦电气有限公司 | Degree of depth dehumidifying VMC |
| CN105091164A (en) * | 2015-08-14 | 2015-11-25 | 西安工程大学 | Integrated evaporative cooling air conditioner system applicable to single building |
| CN105707966A (en) * | 2016-03-28 | 2016-06-29 | 中国烟草总公司广东省公司 | Tobacco curing house realizing dehumidification cold air outdoor warming circulation |
| CN205619516U (en) * | 2015-12-29 | 2016-10-05 | 吕智 | Energy -saving low humidity fresh air conditioning |
| CN106016989A (en) * | 2016-06-03 | 2016-10-12 | 马军 | Tobacco drying device |
| CN205728031U (en) * | 2016-04-28 | 2016-11-30 | 云南亿博科技有限公司 | A kind of electricity barn |
| CN205747879U (en) * | 2016-05-18 | 2016-11-30 | 广州能之原科技股份有限公司 | A kind of airtight internal-circulation type Nicotiana tabacum L. drying unit |
-
2016
- 2016-12-15 CN CN201611158457.0A patent/CN106690394A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1444905A2 (en) * | 2003-02-05 | 2004-08-11 | British American Tobacco (Germany) GmbH | Pressure conditioning method and apparatus |
| CN204351053U (en) * | 2014-12-30 | 2015-05-27 | 云南中海路德科技有限公司 | For the heat sink of closed tobacco flue-curing house |
| CN204611974U (en) * | 2015-04-24 | 2015-09-02 | 浙江欧伦电气有限公司 | Degree of depth dehumidifying VMC |
| CN105091164A (en) * | 2015-08-14 | 2015-11-25 | 西安工程大学 | Integrated evaporative cooling air conditioner system applicable to single building |
| CN205619516U (en) * | 2015-12-29 | 2016-10-05 | 吕智 | Energy -saving low humidity fresh air conditioning |
| CN105707966A (en) * | 2016-03-28 | 2016-06-29 | 中国烟草总公司广东省公司 | Tobacco curing house realizing dehumidification cold air outdoor warming circulation |
| CN205728031U (en) * | 2016-04-28 | 2016-11-30 | 云南亿博科技有限公司 | A kind of electricity barn |
| CN205747879U (en) * | 2016-05-18 | 2016-11-30 | 广州能之原科技股份有限公司 | A kind of airtight internal-circulation type Nicotiana tabacum L. drying unit |
| CN106016989A (en) * | 2016-06-03 | 2016-10-12 | 马军 | Tobacco drying device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
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| WD01 | Invention patent application deemed withdrawn after publication |