CN106369959B - A kind of air energy heat pump agricultural product drying device - Google Patents
A kind of air energy heat pump agricultural product drying device Download PDFInfo
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- CN106369959B CN106369959B CN201610982549.4A CN201610982549A CN106369959B CN 106369959 B CN106369959 B CN 106369959B CN 201610982549 A CN201610982549 A CN 201610982549A CN 106369959 B CN106369959 B CN 106369959B
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- evaporator
- volume damper
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/10—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- 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
- F26B21/006—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects the gas supply or exhaust being effected through hollow spaces or cores in the materials or objects, e.g. tubes, pipes, bottles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to a kind of air energy heat pump agricultural product drying devices.It is made of air source heat pump outdoor host computer, total-heat exchanger, wind turbine one, condenser, material disc, drying box enclosure, barge board, exhaust duct, ajutage, air-supply plenum chamber, return air plenum chamber.Air source heat pump outdoor host computer includes three volume dampers and two groups of evaporators；Two groups of evaporators are connected in parallel, and pass through a part for refrigerant tubing and condenser refrigeration cycle in series；Air source heat pump outdoor host computer treated outdoor fresh air in total-heat exchanger be sent into after air draft heat exchange in drying box enclosure；Wind turbine one provides air in the power for drying box enclosure internal circulation flow；Wind shield is installed in appropriate location before and after material disc, obtains required material disc interior air-flow route.The present invention can be achieved, to three kinds of the list heating of agricultural product, low temperature dehumidification, heating and dehumidifying etc. drying operating modes, can also realize that material disc air-supply wind speed is uniform, improve efficiency of energy utilization and agricultural product drying uniformity.
Description
Technical field
The present invention relates to air energy heat pumps to utilize technology, in particular to a kind of energy-saving and environmental protection, efficient, stable operation sky
Gas energy heat pump agricultural product drying device belongs to air energy heat pump application and field of agricultural products processing.
Background technology
It is counted according to the Ministry of Agriculture, agricultural products in China loss caused by dry problem is surprising, and loss late is more than 8%, annual grain
Food loss amount is as high as 50,000,000,000 jin.Therefore, the Ministry of Agriculture points out to be transformed in processing of farm products major tasks deployment in 2015
Upgrade agricultural product drying institution.Agricultural product moisture content is high, and baking needed energy consumption is big, as the moisture content of 1Kg gourd, fruit and vegetables exists
90% or more, and the moisture content of dehydrated vegetables is generally below 4%.1000Kg gourd, fruit and vegetables are dried, if not considering that energy damages
It loses, theoretically required energy consumption is 1.9 × 106KJ, it is equivalent to need 65Kg standard coals.The fast development of farming industry, no
Increased agricultural product drying energy consumption of breaking has become the important component of AND ENERGY RESOURCES CONSUMPTION IN CHINA.
In recent years, no matter China in terms of agricultural product drying technical research or equipment development all achieves fast development,
Current technology is synchronous with the equipment substantially worlds Yi Yu.But China is in agricultural product drying technical research and equipment research and development side
Face still has some shortcomings and problem.Such as：1) agricultural products in China drying heating with can still mainly based on fire coal, especially one
The hot air baking room for being suitable for the drying of a variety of agricultural product materials a bit mostly uses hand and burns coal-fired furnace and dried, increasingly with the energy
Anxiety, further research and develop it is energy-saving, be developing direction from now on using the stoving process technology and equipment of regenerative resource.
2) agricultural product drying processes common technology and device type is more, there is state type hot air circulation drying room, tunnel-type hot air baking in batches
Dry technology, belt continous way hot-air seasoning technology, radiative oven dry technology, vacuum refrigeration drying technology etc..The type of drying technology
More, however, present various technologies in drying is applied, all exist, drying course energy consumption is big, drying course uniformity asks
Topic.Dry materials degree is different everywhere in drying box, and drying course material turning is caused to increase labor workload, drying time
It grows and increases energy consumption, processing of farm products cost is caused to increase.
Therefore, on the basis of existing agricultural product drying technology, from drying energy consumption and product quality etc. to drying skill
Art and equipment are further researched and developed, design energy-saving and environmental protection, efficient, stable operation air energy heat pump agricultural product drying device,
It is China's agricultural industry and farming industry is sustainable, important leverage of stable development and Agricultural Products drying technology
One of the major issue of faced solution.
Invention content
It is an object of the invention to：Overcome the shortcomings of Agricultural Products drying technology, proposes a kind of production using air energy
Product drying unit, the drying unit is by using air energy heat pump as heat source, it can be achieved that list of the agricultural product under Different climate
Heat drying, single removal moisture drying, dehumidifying and the drying functions such as heat drying.
The present invention is in order to solve the above technical problems, adopted the technical scheme that：A kind of air energy heat pump agricultural product drying
Device, it includes air source heat pump outdoor host computer, total-heat exchanger, wind turbine one, condenser, material disc, drying box enclosure, keeps out the wind
Plate, exhaust duct one, ajutage one, exhaust duct two, ajutage two, volume damper one, volume damper two, volume damper
Three, evaporator one, evaporator two, wind turbine two, air-supply plenum chamber, return air plenum chamber；The air source heat pump outdoor host computer packet
Containing volume damper one, volume damper two, volume damper three, evaporator one, evaporator two, wind turbine two；The evaporation
Device one and evaporator two are connected in parallel by refrigerant tubing, pass through refrigerant tubing and condenser refrigeration cycle in series
A part；The volume damper two of the air source heat pump outdoor host computer is connect by ajutage two with total-heat exchanger, entirely
Heat exchanger is connect with ajutage one, and ajutage one passes through drying box side wall of outer shell and reaches near wind turbine one, and wind turbine one exports
It is connect with air-supply plenum chamber, the side connection of blow plenum chamber and material disc, the other side of material disc is connect with return air plenum chamber；
The wind shield is installed on the front and rear of material disc, changes flow direction of blowing in material disc, and all air-supplies is made to wear
Cross material disc and just through one layer of material disc；The exhaust duct one is mounted on the return air plenum chamber outlet in drying box enclosure
Near, exhaust duct one is connect with total-heat exchanger, and total-heat exchanger is connect with exhaust duct two, and the condenser is installed on air-supply
In plenum chamber.
The invention has the advantages and positive effects that：1) air source heat pump outdoor host computer is designed as two areas and two only
Vertical evaporator, each area are respectively equipped with independent exhaust outlet and volume damper, are opened and closed by adjusting each volume damper, and adjust
Save wind turbine, total-heat exchanger wind turbine start and stop in air source heat pump host, may be implemented drying box to single heating, dryings of agricultural product,
Three kinds of drying operating modes such as low temperature dehumidification drying, heating and dehumidifying drying, the same drying unit meet different agricultural product drying works
Skill demand.2) appropriate air register is arranged in two side of material disc in baking zone, changes the baking zone interior air-flow regularity of distribution, realizes institute
There is the hot sending wind from air-supply plenum chamber all across material disc and all hot sending wind from air-supply plenum chamber are just through an object
Charging tray enters return air plenum chamber, it can be achieved that the air-supply wind speed of each point is uniform in each layer material disc, material disc, improves hot wind profit
With rate and agricultural product drying uniformity, agricultural product drying energy consumption and drying time are saved, improves efficiency of energy utilization.3) design is complete
The higher high temperature and humidity air draft of enthalpy and enthalpy lower low temperature and low humidity air-supply after dehumidifying are carried out heat exchange by heat exchanger, can be with
Higher heat exchanger effectiveness is obtained, drying energy consumption is saved.4) utilize air source heat pump, using air can this regenerative resource as
Agricultural product drying heat source is conducive to energy saving and environmental protection.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is air source heat pump outdoor host computer schematic diagram
In Fig. 1-Fig. 2：1. air source heat pump outdoor host computer, 2. total-heat exchangers, 3. wind turbines one, 4. condensers, 5. materials
Disk, 6. drying box enclosures, 7. wind shields, 8. exhaust ducts one, 9. ajutages one, 10. exhaust ducts two, 11. ajutages two, 12.
Volume damper one, 13. volume dampers two, 14. volume dampers three, 15. evaporators one, 16. evaporators two, 17. wind turbines
Two, 18. air-supply plenum chambers, 19. return air plenum chambers.
Specific implementation mode
For that can further appreciate that invention content, feature and the effect of the present invention, following embodiment is hereby enumerated, and coordinate attached drawing
Detailed description are as follows.
As Figure 1-Figure 2：
Air source heat pump outdoor host computer 1, total-heat exchanger 2, wind turbine 1, condenser 4, material disc 5 dry box enclosure 6,
Wind shield 7, exhaust duct 1, ajutage 1, exhaust duct 2 10, ajutage 2 11, volume damper 1, volume damper
2 13, volume damper 3 14, evaporator 1, evaporator 2 16, wind turbine 2 17, plenum chamber 18 of blowing, return air plenum chamber 19；
The air source heat pump outdoor host computer 1 includes volume damper 1, volume damper 2 13, volume damper 3 14, steaming
Send out device 1, evaporator 2 16, wind turbine 2 17；The evaporator 1 and evaporator 2 16 is connected by refrigerant tubing parallel connection
It connects, passes through a part for refrigerant tubing and 4 refrigeration cycle in series of condenser；The air source heat pump outdoor host computer 1
Volume damper 2 13 connect with total-heat exchanger 2 by ajutage 2 11, total-heat exchanger 2 is connect with ajutage 1,
Ajutage 1 passes through drying 6 side wall of box enclosure and reaches near wind turbine 1, and the outlet of wind turbine 1 is connect with air-supply plenum chamber 18,
Air-supply plenum chamber 18 is connect with the side of material disc 5, and the other side of material disc 5 is connect with return air plenum chamber 19；Described keeps out the wind
Plate 7 is installed on the front and rear of material disc 5, changes flow direction of blowing in material disc 5, and all air-supplies is made to both pass through material disc
5 and just through one layer of material disc 5；The return air plenum chamber 19 that the exhaust duct 1 is mounted in drying box enclosure 6 exports
Near, exhaust duct 1 is connect with total-heat exchanger 2, and total-heat exchanger 2 is connect with exhaust duct 2 10, the condenser 4 peace
Loaded in air-supply plenum chamber 18.
A kind of operation of air energy heat pump agricultural product drying device of the present invention can be divided into single heating, drying, low temperature dehumidification
Three kinds of drying operating modes such as drying, heating and dehumidifying drying, the selection of three kinds of drying operating modes can be according to agricultural product characteristic and processing
Process requirements determine that each operating mode operation is as follows.
The concrete operations of single heating, drying operating mode are：Volume damper 1 is opened, volume damper 2 13 is closed, air quantity
Regulating valve 3 14 is opened；Air source heat pump outdoor host computer 1 is opened, and wind turbine 2 17 is opened, under the graviational interaction of wind turbine 2 17, room
Outer air stream absorbs outdoor air heat through evaporator 1 or evaporator 2 16, evaporator 1 and evaporator 2 16, and passes through
Air source heat pump outdoor host computer 1 send heat to condenser 4 after promoting temperature；The unlatching of wind turbine 1 makes air circulation in drying box
After one 3 outlet air of wind turbine is heated by condenser 4, material disc 5 material drying is sent into, into returning through plenum chamber 18 of blowing for flowing
Wind plenum chamber 19 flows back into wind turbine 1；Total-heat exchanger 2 is closed, and fresh air is not supplemented into drying box.The operating mode is only to drying
Heat supply in case does not send the material heating, drying in material disc 5 to outdoor fresh air into drying box.
Low temperature dehumidification drying operating mode concrete operations be：Volume damper 1 is closed, volume damper 2 13 is opened, wind
Adjustable valve 3 14 is closed；Wind turbine 2 17 is closed, and total-heat exchanger 2 is opened, and air source heat pump outdoor host computer 1 is opened, in full heat
Under the wind turbine graviational interaction of exchanger 2, outdoor fresh air is followed by evaporator 2 16 and evaporator 1, through two-stage cooling dehumidification
Dry fresh air afterwards enters total-heat exchanger 2, enters in drying box after carrying out heat exchange with air draft in total-heat exchanger 2, room
Outer dry fresh air pressurizes after being mixed with return air in drying box through wind turbine 1 and plenum chamber 18 is sent by the heating of condenser 4, through blowing
5 material drying of material disc, into return air plenum chamber 19, a part of return air flow to wind turbine 1, and another part return air is through exhaust duct one
8 enter the heat exchange heel row of total-heat exchanger 2 to outdoor.The operating mode, while will be cold to send low temperature dry air with master into drying box
But the heat to dehumidify passes to low temperature drying fresh air through air source heat pump outdoor host computer 1 and condenser 4, makes low temperature dry air temperature
Degree increases and obtains lower relative air humidity, has been more advantageous to material drying under low temperature.
Heating and dehumidifying drying operating mode can be divided into two kinds of operational modes, the i.e. high water capacity operational mode of outdoor air and room
The low water capacity operational mode of outer air, the concrete operations of the high water capacity operational mode of outdoor air are：Volume damper one 12 dozens
It opens, volume damper 2 13 is opened, volume damper 3 14 is closed；Wind turbine 2 17 is opened, and total-heat exchanger 2 is opened, air-source
Heat pump outdoor host computer 1 is opened, and a part of outdoor fresh air carries out heat exchange under the graviational interaction of wind turbine 2 17, with evaporator 2 16
It is discharged afterwards by wind turbine 2 17；Another part outdoor fresh air is under the wind turbine graviational interaction of total-heat exchanger 2, followed by evaporation
Device 2 16 and evaporator 1, the dry fresh air after two-stage cooling dehumidification enter total-heat exchanger 2, in total-heat exchanger 2
Enter in drying box after carrying out heat exchange with air draft；Air source heat pump outdoor host computer 1 inhales evaporator 2 16 and evaporator 1
The heat transfer of receipts is to condenser 4；Open-air seasoning fresh air pressurizes through wind turbine 1 after being mixed with return air in drying box and by condenser
4 heating are sent into 5 material drying of material disc, into return air plenum chamber 19 through plenum chamber 18 of blowing, and a part of return air flow to wind turbine one
3, another part return air enters the heat exchange heel row of total-heat exchanger 2 to outdoor through exhaust duct 1.The low water capacity of outdoor air runs mould
Formula need not dehumidify to outdoor air, need to only can be obtained to air heating because air humidity content is low (such as winter outdoor air)
Lower relative air humidity, therefore, concrete operations are：Volume damper 3 14 is opened, and other operations and outdoor air are high
The concrete operations of water capacity operational mode are identical；Under the operational mode, the air as source heat pump heat flows through wind turbine 2 17, empty
Gas source includes two parts：A part flows through evaporator 2 16 and with the heat exchange of evaporator 2 16, another part by volume damper
It exchanges heat with evaporator 1 after 3 14 entrance；The dry air of drying box comes from outdoor fresh air, flow through volume damper 3 14,
It is directly entered in drying box after volume damper 2 13 and total-heat exchanger 2.The operating mode heat supply and can be sent into drying box simultaneously
Enter dry fresh air, heating and dehumidification can be carried out to material.
Claims (1)
1. a kind of air energy heat pump agricultural product drying device, it is characterised in that：The agricultural product drying device includes air-source
Heat pump outdoor host computer (1), total-heat exchanger (2), wind turbine one (3), condenser (4), material disc (5), drying box enclosure (6), gear
Aerofoil (7), exhaust duct one (8), ajutage one (9), exhaust duct two (10), ajutage two (11), volume damper one (12), wind
Adjustable valve two (13), volume damper three (14), evaporator one (15), evaporator two (16), wind turbine two (17), static pressure of blowing
Room (18), return air plenum chamber (19)；The air source heat pump outdoor host computer (1) includes volume damper one (12), air quantity tune
Save valve two (13), volume damper three (14), evaporator one (15), evaporator two (16), wind turbine two (17)；The evaporator
One (15) and evaporator two (16) are connected in parallel by refrigerant tubing, and are connected with condenser (4) structure by refrigerant tubing
At a part for refrigeration cycle；The volume damper two (13) of the air source heat pump outdoor host computer (1) passes through ajutage two
(11) it is connect with total-heat exchanger (2), total-heat exchanger (2) is connect with ajutage one (9), and ajutage one (9) passes through drying box
Shell (6) side wall simultaneously reaches near wind turbine one (3), and wind turbine one (3) outlet is connect with air-supply plenum chamber (18), plenum chamber of blowing
(18) it is connect with the side of material disc (5), the other side of material disc (5) is connect with return air plenum chamber (19)；The wind shield
(7) it is installed on the front and rear of material disc (5), changes flow direction of blowing in material disc (5), all air-supplies is made to both pass through object
Charging tray (5) and just through one layer of material disc (5)；The return air that the exhaust duct one (8) is mounted in drying box enclosure (6) is quiet
Pressure chamber (19) near exit, exhaust duct one (8) are connect with total-heat exchanger (2), and total-heat exchanger (2) connects with exhaust duct two (10)
It connects, the condenser (4) is installed in air-supply plenum chamber (18)；
The operation of the air energy heat pump agricultural product drying device is divided into single heating, drying, low temperature dehumidification drying, heating and dehumidifying
Three kinds of drying operating modes of drying；
Under single heating, drying operating mode, the volume damper one (12) is opened, the volume damper two (13) is closed,
The volume damper three (14) is opened；Air source heat pump outdoor host computer (1) is opened, and the wind turbine two (17) is opened, described
Under the graviational interaction of wind turbine two (17), outdoor air flows through the evaporator one (15) or the evaporator two (16)；Described
Low temperature dehumidification is dried under operating mode, and the volume damper one (12) is closed, the volume damper two (13) is opened, the air quantity
Regulating valve three (14) is closed；The wind turbine two (17) is closed, and the total-heat exchanger (2) is opened, air source heat pump outdoor host computer
(1) it opens, under the wind turbine graviational interaction of the total-heat exchanger (2), outdoor fresh air is followed by the evaporator two (16)
With the evaporator one (15)；
The heating and dehumidifying drying operating mode are divided into the high water capacity operational mode of outdoor air and the low water capacity of outdoor air is run
Pattern, under the high water capacity operational mode of the outdoor air, the volume damper one (12) opening, the volume damper
Two (13) are opened, the volume damper three (14) is closed；The wind turbine two (17) is opened, and the total-heat exchanger (2) is opened,
Air source heat pump outdoor host computer (1) is opened, and a part of outdoor fresh air is under the graviational interaction of the wind turbine two (17), with the steaming
It sends out after device two (16) carries out heat exchange and is discharged by the wind turbine two (17)；Another part outdoor fresh air is in the total-heat exchanger
(2) under wind turbine graviational interaction, followed by the evaporator two (16) and the evaporator one (15)；
Under the low water capacity operational mode of the outdoor air, the volume damper three (14) open, it is other operation with it is described
The concrete operations of the high water capacity operational mode of outdoor air are identical, and under the operational mode, the air as source heat pump heat flows through institute
Wind turbine two (17) is stated, air source includes two parts：A part flow through the evaporator two (16) and with the evaporator two
(16) it exchanges heat with the evaporator one (15) after heat exchange, another part are entered by the volume damper three (14)；Drying box
Dry air comes from outdoor fresh air, flows through the volume damper three (14), the volume damper two (13) and described complete
Heat exchanger is directly entered after (2) in drying box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610982549.4A CN106369959B (en) | 2016-11-09 | 2016-11-09 | A kind of air energy heat pump agricultural product drying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610982549.4A CN106369959B (en) | 2016-11-09 | 2016-11-09 | A kind of air energy heat pump agricultural product drying device |
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| CN106369959A CN106369959A (en) | 2017-02-01 |
| CN106369959B true CN106369959B (en) | 2018-08-10 |
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| CN106907919B (en) * | 2017-04-27 | 2019-03-29 | 湘潭大学 | A kind of high temperature modification solar-energy air-energy heat pump agricultural product drying case heating plant |
| CN106918206B (en) * | 2017-04-27 | 2019-03-29 | 湘潭大学 | A kind of multi-state type solar-energy air-energy heat pump agricultural product drying case heating plant |
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| CN108534477B (en) * | 2018-04-19 | 2020-10-30 | 南华大学 | Drying system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5268401B2 (en) * | 2008-03-21 | 2013-08-21 | 株式会社カワタ | Heat pump dryer |
| KR101171850B1 (en) * | 2009-12-16 | 2012-08-07 | (주)에프티이앤이 | Dryer |
| CN201691039U (en) * | 2010-05-24 | 2011-01-05 | 真强寿 | Air source intelligent baking room |
| CN103175382A (en) * | 2011-12-26 | 2013-06-26 | 中国科学院理化技术研究所 | Heat pump drying system |
| CN202885443U (en) * | 2012-08-27 | 2013-04-17 | 河南科技大学 | Nitrogen source heat pump drying unit |
| CN203416802U (en) * | 2013-03-06 | 2014-02-05 | 东莞市正旭新能源设备科技有限公司 | Intelligent energy-saving and humidity-removal integrated curing barn for cured tobaccos |
| CN204014952U (en) * | 2014-07-03 | 2014-12-17 | 南京师范大学 | Energy recovery type edible mushroom drying equipment |
| CN105066665A (en) * | 2015-07-22 | 2015-11-18 | 合肥淘能环境科技有限公司 | Heat recovery heat pump device of drying room |
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Effective date of registration: 20220808 Address after: 1st and 5th Floor, No. 7, Yuanyuan Road, Liu14 East Road, Chengdong Street, Gutian County, Ningde City, Fujian Province, 352200 Patentee after: Fujian Gutian Kangyida Biotechnology Co., Ltd. Address before: Xiangtan University, Yanggutang Street, Yuhu District, Xiangtan City, Hunan Province, 411105 Patentee before: XIANGTAN University |
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