CN205784468U - A kind of dual temperature type Split heat pump drying device - Google Patents
A kind of dual temperature type Split heat pump drying device Download PDFInfo
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- CN205784468U CN205784468U CN201620578476.8U CN201620578476U CN205784468U CN 205784468 U CN205784468 U CN 205784468U CN 201620578476 U CN201620578476 U CN 201620578476U CN 205784468 U CN205784468 U CN 205784468U
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Abstract
The utility model discloses a kind of dual temperature type Split heat pump drying device.This device includes high-temperature drying chamber, exhaust fan, main frame and normal temperature drying room；High-temperature drying chamber is provided with air inlet and air outlet, and air inlet is connected with the outdoor air heating chamber air outlet of main frame by high temperature ajutage；Normal temperature drying room is provided with air inlet and return air inlet, and air inlet is connected by the air outlet of room temperature ajutage with the circulation air-handling chamber of main frame；The refrigeration compressor of main frame is connected with auxiliary condenser by pipeline respectively with condenser, equipped with device for drying and filtering and heating power expansion valve on condensator outlet pipeline, heating power expansion valve is connected with vaporizer by pipeline, and evaporator outlet pipeline is connected with refrigeration compressor；This utility model controls high-temperature drying chamber and the temperature of normal temperature drying room and dry run by the frequency conversion fan of regulation machine hall outer air heating chamber, energy-saving and environmental protection, stable, a machine dual temperature is dried, drying effect is good, can be used for the dry processing of agricultural byproducts.
Description
Technical field
This utility model relates to a kind of drying equipment, particularly relates to the heat pump drying device that a kind of dual temperature type is split type,
This device is particularly suitable for the dry processing of agricultural byproducts.
Background technology
Heat pump drying technology has many advantages, thus is widely used in the dry processing of agricultural byproducts and grinds
Study carefully.But, it not being widely used in the dry processing of agricultural byproducts at China's heat pump drying technology, key reason exists
Defect in heat pump drying device itself.Traditional heat pump drying device is standing is calculated as enclosed construction, i.e. in heat pump drying system
In system, circulation air is both as being dried medium, and again as the cooling medium of refrigerant system condenser, circulation air passes through vaporizer
Cool-down dehumidification, by condenser heat temperature raising, thus when ambient temperature is higher, especially in summer, the temperature of circulation air
Rising causes the condensing pressure of condenser to raise, the delivery temperature of refrigeration compressor rises, so that refrigeration compressor occurs
High voltage protective or overtemperature protection frequent movement, heat pump drying device cannot normally work；Traditional heat pump drying device exists
Another defect is: find in actual applications, and the phase goes out without condensing water after the drying, i.e. heat pump drying device loses dry merit
Energy.The cold that the heat that in heat pump drying device, condenser provides provides more than vaporizer.At the dry initial stage, due to material surface
Moisture evaporates in a large number, and required heat is big so that the return air temperature of circulation air is relatively low, when circulating air by vaporizer,
Air themperature can be reduced to dew point temperature, and the moisture in air condenses at evaporator surface discharges, and dry run is normal, but,
Entering the later stage of drying, due to the evaporation of material internal moisture slowly, the moisture evaporated in the unit interval is few, thus institute's calorific requirement
Little, this makes the return air temperature circulating air significantly raise, and when circulating air by vaporizer, the temperature of air cannot drop to
Dew point temperature, now in circulation air, contained moisture will not condense precipitation on an evaporator, and drying device loses functions/drying.
Owing to the significant defect of above-mentioned two exists, thus limit heat pump drying device answering in the dry processing of agricultural byproducts
With.
Utility model content
This utility model provides a kind of Novel heat pump drying device, can solve traditional closed type hot technically simultaneously
Pump drying device is when ambient temperature is higher and the problem that cannot normally work of the later stage of drying.
This utility model is achieved through the following technical solutions:
A kind of dual temperature type Split heat pump drying device, including high-temperature drying chamber, normal temperature drying room, outdoor air heating
Room, circulation air-handling chamber, refrigeration compressor, heating power expansion valve, device for drying and filtering, auxiliary condenser, condenser, vaporizer,
Thermal insulation wind pipe, frequency conversion fan and blower fan.
High-temperature drying chamber is provided with high-temperature drying chamber's air inlet and air outlet；High-temperature drying chamber's air inlet by thermal insulation wind pipe with
The air outlet of the outdoor air heating chamber of main frame is connected, and in high-temperature drying chamber, air outlet is provided with exhaust fan.
Normal temperature drying room has air inlet and return air inlet, by thermal insulation wind pipe respectively with the circulation air-handling chamber of main frame
Air outlet is connected with return air inlet.
Main frame is provided with outdoor air heating chamber and circulation air-handling chamber.Auxiliary condensation it is provided with in outdoor air heating chamber
Device and frequency conversion fan.It is placed with refrigeration compressor, device for drying and filtering and heating power expansion valve in circulation air-handling chamber.In circulation
Equipped with vaporizer and evaporator fan at the return air inlet of air-handling chamber bottom, at circulation air-handling chamber top air outlet equipped with
Condenser and condenser fan.
Preferably, described temperature shows and controller is arranged on side, main frame top.Described airduct uses thermal insulation wind pipe.Institute
Stating vaporizer lower end and be provided with drip tray, drip tray is communicated to outside air-handling chamber casing by drain pipe.Described auxiliary condenser,
Condenser and vaporizer use nest plate pipe heat exchanger.Described refrigeration compressor uses fully closed compressor.Described refrigeration pressure
It is indoor that contracting machine is arranged on circulation air-treatment.
This utility model has the advantage that
1, energy-saving effect is notable: heat pump drying device has good energy-saving effect, joint compared with electric hot-air drying equipment
Can reach more than 30%, refrigeration compressor is arranged on air-treatment indoor by especially this utility model so that refrigeration compressor exists
While being cooled down, the heat that compressor is distributed is obtained by, and this makes the thermal efficiency of drying device be improved, energy-conservation
Effect is more significantly.
2, environmental protection: use environmental protection refrigerant and environment-friendly insulating material on environment without impact；
3, rational in infrastructure: device design compact conformation, rationally, floor space is little；
4, stable: this utility model uses high-temperature drying chamber and cold drying room to overcome traditional closed heat pump and does
Defect and the later stage of drying drying device that dry device cannot normally work when ambient temperature is higher lose lacking of functions/drying
Fall into, refrigeration compressor is placed on air-treatment indoor simultaneously, can be to refrigeration compressor from vaporizer Cryogenic air out
Cool down, thus ensured the normal work of refrigeration compressor further so that drying device stable and reliable operation.
5, a machine dual temperature can be realized be dried: by regulation frequency conversion fan, it is possible to achieve high-temperature drying chamber and normal temperature drying room
Two temperature environments, it is achieved a machine dual temperature is dried.
6, high temperature and cold drying can be realized: by improving the wind speed of frequency conversion fan, increase and be supplied to high-temperature drying chamber
Heat, reduces the heat being supplied to normal temperature drying room, so that the baking temperature of normal temperature drying room is less than 15 DEG C, it is achieved high temperature
With cold drying.
7, drying effect is good, of many uses: this utility model can give full play to the advantage of heat pump drying, drying effect
Good, can be widely used for the dry processing of agricultural byproducts.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of dual temperature type Split heat pump drying device.
Fig. 2 is the structural representation of main frame in Fig. 1.
Shown in figure: high-temperature drying chamber's storehouse door 01, exhaust fan 02, high-temperature drying chamber 03, high temperature ajutage 04, main frame 05,
Room temperature ajutage 06, normal temperature drying room 07, storehouse, normal temperature drying room door 08, room temperature backwind tube 09, outdoor air heating chamber air outlet
1, frequency conversion fan 2, outdoor air heating chamber 3, auxiliary condenser 4, drainage screen 5, outdoor air heating chamber air inlet 6, temperature show
Show and controller 7, condenser 8, air-handling chamber air outlet 9, device for drying and filtering 10, heating power expansion valve 11, vaporizer 12, air
Process chamber return air inlet 13, drip tray 14, drain pipe 15, condenser fan 16, evaporator fan 17, refrigeration compressor 18, circulation
Air-handling chamber 19.
Detailed description of the invention
For being more fully understood that this utility model, below in conjunction with the accompanying drawings this utility model is further described, but this
The scope that utility model claims is not limited to the scope of embodiment statement.
As it is shown in figure 1, a kind of dual temperature type Split heat pump drying device, including high-temperature drying chamber 03, exhaust fan 02, main frame
05, normal temperature drying room 07.
High-temperature drying chamber 03 is provided with air inlet and air outlet, and is provided with high-temperature drying chamber's storehouse door 01, is used for placing material；High
Being provided with exhaust fan 02 at temperature hothouse 03 air outlet, air inlet is heated by the outdoor air of high temperature ajutage 04 with main frame 05
Room air outlet is connected.It is provided with insulation material, for thermal-insulating body in high-temperature drying chamber 03 cavity.Normal temperature drying room 07 and high temperature drying
Room 03 splits on main frame 05 both sides.
Normal temperature drying room 07 is provided with air inlet and return air inlet, and normal temperature drying room air inlet passes through room temperature ajutage 06 and main frame
The air outlet of the circulation air-handling chamber of 05 is connected, and the return air inlet of normal temperature drying room is followed by room temperature backwind tube 09 and main frame 05
The return air inlet of ring air-handling chamber is connected.Normal temperature drying room 07 is provided with storehouse, normal temperature drying room door 08, in the cavity of normal temperature drying room 07
It is provided with insulation material, for thermal-insulating body.
As in figure 2 it is shown, main frame 05 include outdoor air heating chamber 3, circulation air-handling chamber 19, frequency conversion fan 2, assist cold
Condenser 4, temperature show and controller 7, condenser 8, device for drying and filtering 10, heating power expansion valve 11, vaporizer 12, condenser fan
16, evaporator fan 17 and refrigeration compressor 18；Outdoor air heating chamber 3 is provided with outdoor air heating chamber air outlet 1 and outdoor
Hotair chamber air inlet 6；It is provided with drainage screen 5 at outdoor air heating chamber air inlet 6；In the cavity of outdoor air heating chamber 3
It is provided with frequency conversion fan 2 and auxiliary condenser 4；Outdoor air is under the effect of frequency conversion fan 2, by outdoor air heating chamber air intake
The drainage screen 5 of mouth 6 enters outdoor air heating chamber 3, then passes through auxiliary condenser 4 and is heated, from outdoor air heating chamber
Send at air outlet 1.
Circulation air-handling chamber 19 is provided with air-handling chamber air outlet 9 and air-handling chamber return air inlet 13；At circulation air
Process chamber air outlet 9 is provided with condenser 8 and condenser fan 16；It is provided with vaporizer 12 He at circulation air-handling chamber return air inlet 13
Evaporator fan 17；It is provided with refrigeration compressor 18 in circulation air-handling chamber 19；Refrigeration compressor 18 and condenser 8 pass through respectively
Pipeline is connected with auxiliary condenser 4, equipped with device for drying and filtering 10 and heating power expansion valve 11, heating power on condenser 8 export pipeline
Expansion valve 11 is connected with vaporizer 12 by pipeline, and vaporizer 12 outlet pipeline is connected with refrigeration compressor 18.Vaporizer
12 lower ends are provided with drip tray 14, and drip tray 14 is communicated to circulate outside air-handling chamber 19 casing by drain pipe 15.
Temperature shows and controller 7 is arranged on main frame top, is positioned at outdoor air heating chamber 3 side, in order to operation；Temperature
The temperature sensor of degree display and high-temperature drying chamber 03 and normal temperature drying room 07 shows with temperature and is connected with controller 7, temperature
Display is connected with the converter of frequency conversion fan with controller 7.Specifically, temperature shows and controller 7 includes display screen and control
Device processed, its middle controller can use single-chip microcomputer, and controller is connected with display screen, and high-temperature drying chamber 03 is with normal temperature drying room 07 all
Being provided with temperature sensor, temperature sensor is all connected with controller, and controller also converter with frequency conversion fan 2 is connected；Display
Screen shows high-temperature drying chamber 03 and normal temperature drying room 07 temperature, and controller can control frequency conversion fan operating.
In this utility model, auxiliary condenser 4, condenser 8 and vaporizer 12 all can use nest plate pipe heat exchanger.Described
Refrigeration compressor 18 can use fully closed compressor, it is preferred to use paddy wheel ZR30K3 PFJ refrigeration compressor；Device for drying and filtering
The 10 DML084 devices for drying and filtering that can use Danfoss；Heating power expansion valve 11 can select Danfoss TEN2 type thermal expansion
Valve；Condenser fan 16 and evaporator fan 17 can select axial flow blower.
This utility model is by the air mass flow of the rotating speed control room outer air heating chamber 3 of regulation frequency conversion fan 2.Work as frequency conversion
When the rotating speed of blower fan 2 is higher, the air mass flow flowing through auxiliary condenser 4 is big, and the heat exchange amount of outdoor air and auxiliary condenser 4 is also
Greatly, the air mass flow delivering to high-temperature drying chamber 03 is big so that the temperature of high-temperature drying chamber 03 is higher, and due to refrigeration compressor 18
The compression condensation heat provided is certain, and therefore when auxiliary condenser 4 heat exchange amount increases, the heat exchange amount of condenser 8 just subtracts
Few, the wind pushing temperature of circulation air declines, so that the temperature of normal temperature drying room 07 declines.On the contrary, when frequency conversion fan 2
When rotating speed is relatively low, the air mass flow flowing through auxiliary condenser 4 is little, and outdoor air is the least with the heat exchange amount of auxiliary condenser 4, delivers to
The rate of air circulation of high-temperature drying chamber is little, temperature is low so that the temperature of high-temperature drying chamber 07 is relatively low, but the changing of condenser 8
Heat just increases, and the wind pushing temperature of circulation air rises so that the temperature of normal temperature drying room 07 increases.Therefore by regulation
The rotating speed of frequency conversion fan 2 can realize regulating high-temperature drying chamber 03 and the temperature of normal temperature drying room 07.Meanwhile, when summer high temperature,
By regulation frequency conversion fan 2, increase the air mass flow delivering to high-temperature drying chamber 03, the normal work of heat pump drying device can be ensured
Make.
As it is shown in figure 1, this dual temperature type heat pump drying device is used as agricultural byproducts when being dried, can by the article that need to be dried such as
Lentinus Edodes, Radix Dauci Sativae, Bulbus Allii etc., after cleaning dewatering, are placed in high-temperature drying chamber 03, by main frame 05 outdoor air oven heats
Air enter high-temperature drying chamber 03 by high temperature ajutage 04, skim over the article being dried, under the effect of exhaust fan 02 from
Air outlet is discharged.The article being dried are blown over through hot blast, and the moisture meeting rapid evaporation on surface, hence into article internal moisture
Evaporative drying process.
The article being dried through high-temperature drying chamber 03 are placed in normal temperature drying room 07.
In normal temperature drying room 07, circulation air carries out cool-down dehumidification, heat temperature raising through the circulation air-handling chamber of main frame
After delivered in normal temperature drying room 07 by room temperature ajutage 06, through the article that are dried, article internal moisture is evaporated so that
The humidity of circulation air increases temperature and declines, and then returns to circulate in air-handling chamber through room temperature backwind tube 09.
As in figure 2 it is shown, in circulation air-handling chamber 19, circulate the air evaporator fan in air-handling chamber 19 bottom
Under the effect of 17, from normal temperature drying room, flow through vaporizer 12 by room temperature backwind tube through air-handling chamber return air inlet 13.Steaming
Sending out in device 12, circulation air is cooled, at a temperature of drop to dew point temperature, the hydrogenesis in circulation air separates out, and condenses water and falls
Enter in drip tray 14, outside drain pipe 15 is discharged to circulate air-handling chamber 19 casing.Circulation air through vaporizer 12 cooling
Temperature declines with humidity, enters air-handling chamber 19, and blows over refrigeration compressor 18 so that system under evaporator fan 17 acts on
Cold compressor 18 is cooled down.
Circulation air, under the effect of air-handling chamber 19 upper condensator blower fan 16, flows through condenser 8 and is heated to form
For the hot-air of low humidity, then enter room temperature ajutage by air-handling chamber air outlet 9 and be sent into normal temperature drying room.Often
In temperature hothouse, the hot-air of low humidity blows over the article removing surface moisture in high-temperature drying chamber so that the internal institute of article
The moisture evaporation contained, the humidity of air increases, and then, circulation air enters into circulation air-handling chamber through room temperature backwind tube and returns
Air port 13, effect dirty pervaporation device 12 cool-down dehumidification once again at evaporator fan 17, circulation air so moves in circles, warp
Spend certain time, so that the article being dried in normal temperature drying room reach the required prescription being dried.
Refrigerant cycle: operationally, after cold-producing medium (such as R134a) absorbs heat in vaporizer 12, is steamed by liquid
Sending out is steam, becomes the steam of high pressure-temperature after refrigeration compressor 18 compresses, and steam is introduced into auxiliary condenser 4 and carries out pre-
Cold, subsequently into being condensed into liquid in condenser 8, the cold-producing medium after liquefaction enters heating power expansion valve through device for drying and filtering 10
11 throttlings turn again to vaporizer 12 heat absorption evaporation, so circulate.
Above-mentioned illustrated dry run is only for the application in this utility model of two dry runs of same article
Describe, but, for different agricultural byproducts, its drying process requires difference, and baking temperature is the most different.This utility model can lead to
Cross the frequency conversion fan in the outdoor air heating chamber being arranged on main frame and control to flow through the air mass flow of auxiliary condenser, thus reach
Control the temperature of high-temperature drying chamber and normal temperature drying room, it is achieved the dry environment that two temperature are different, be possible not only to meet same
The temperature requirement of article difference dry run, and be also applied for two kinds of article being dried, i.e. realize a machine dual temperature. simultaneously
It is dried.
This utility model have employed the structure of high-temperature drying chamber and normal temperature drying room, is arranged on outer space, machine hall by regulation
Frequency conversion fan in hot-air heater, not only achieves a machine dual temperature and is dried, and can efficiently solve closed heat pump drying dress
Put and compared with Gao Shiyin refrigeration compressor, high voltage protective or overtemperature protection frequent movement occur in ambient temperature and cannot normally work
Problem, and after the drying the phase because of the return air temperature of circulation air significantly raise, the temperature of air is cannot through vaporizer
Drop to dew point temperature, drying device loses the problem of functions/drying, and refrigeration compressor is cooled down simultaneously so that drying device
Run more reliable and more stable；The heat that refrigeration compressor is distributed is obtained by, and this makes the thermal efficiency of drying device be entered
One step improves, and energy-saving effect is more significantly.
Claims (10)
1. a dual temperature type Split heat pump drying device, it is characterised in that include high-temperature drying chamber, exhaust fan, main frame and often
Temperature hothouse；
Described high-temperature drying chamber is provided with air inlet and air outlet, and is provided with high-temperature drying chamber Ku Men；At high-temperature drying chamber's air outlet
Being provided with exhaust fan, air inlet is connected with the outdoor air heating chamber air outlet of main frame by high temperature ajutage；
Described normal temperature drying room is provided with air inlet and return air inlet, and normal temperature drying room air inlet is followed by room temperature ajutage and main frame
The air outlet of ring air-handling chamber is connected, and the return air inlet of normal temperature drying room is by the circulation air-treatment of room temperature backwind tube with main frame
The return air inlet of room is connected；Normal temperature drying room is provided with normal temperature drying room Ku Men；
Described main frame include outdoor air heating chamber, circulation air-handling chamber, frequency conversion fan, auxiliary condenser, temperature show and
Controller, condenser, device for drying and filtering, heating power expansion valve, vaporizer, condenser fan, evaporator fan and refrigeration compressor；
Outdoor air heating chamber is provided with outdoor air heating chamber air outlet and outdoor air heating chamber air inlet；Outdoor air heating chamber
Frequency conversion fan and auxiliary condenser it is provided with in cavity；Described circulation air-handling chamber is provided with at air-handling chamber air outlet and air
Reason room return air inlet；It is provided with condenser and condenser fan at circulation air-handling chamber air outlet；At circulation air-handling chamber return air
Mouth is provided with vaporizer and evaporator fan；Circulation air-treatment indoor are provided with refrigeration compressor；Refrigeration compressor and condenser divide
Tong Guo not be connected with auxiliary condenser by pipeline, equipped with device for drying and filtering and heating power expansion valve, heating power on condensator outlet pipeline
Expansion valve is connected with vaporizer by pipeline, and evaporator outlet pipeline is connected with refrigeration compressor；
Described temperature shows and controller includes display screen and controller, and its middle controller uses single-chip microcomputer, controller and display
Screen connects, and high-temperature drying chamber and normal temperature drying room are designed with temperature sensor, and temperature sensor is all connected with controller, controller
Also it is connected with the converter of frequency conversion fan.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: described high temperature drying
It is provided with insulation material, for thermal-insulating body in the cavity of room.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: described, air setting
It is provided with insulation material, for thermal-insulating body in the cavity of dry room.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: described outdoor air
Heating chamber air inlet is provided with drainage screen.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: under described vaporizer
End is provided with drip tray, and drip tray is communicated to circulate outside air-handling chamber casing by drain pipe.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: described temperature shows
It is arranged on main frame top with controller, is positioned at outdoor air heating chamber side.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: described auxiliary condensation
Device, condenser and vaporizer all use nest plate pipe heat exchanger.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: described refrigerant compression
Machine can use fully closed compressor.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: described dry filter
Device uses the DML084 device for drying and filtering of Danfoss；Described heating power expansion valve selects Danfoss TEN2 type heating power expansion valve.
A kind of dual temperature type Split heat pump drying device the most according to claim 1, it is characterised in that: described condenser
Blower fan and evaporator fan select axial flow blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578476.8U CN205784468U (en) | 2016-06-15 | 2016-06-15 | A kind of dual temperature type Split heat pump drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578476.8U CN205784468U (en) | 2016-06-15 | 2016-06-15 | A kind of dual temperature type Split heat pump drying device |
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| Publication Number | Publication Date |
|---|---|
| CN205784468U true CN205784468U (en) | 2016-12-07 |
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ID=58131727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620578476.8U Expired - Fee Related CN205784468U (en) | 2016-06-15 | 2016-06-15 | A kind of dual temperature type Split heat pump drying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205784468U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106858271A (en) * | 2017-03-29 | 2017-06-20 | 仲恺农业工程学院 | A kind of pump type heat low temperature and high relative humidity air thawing device |
| CN107238276A (en) * | 2017-07-18 | 2017-10-10 | 青岛大学 | Hot pump in low temp drying system during one kind is removable |
| CN111920970A (en) * | 2020-08-18 | 2020-11-13 | 西安市中心医院 | Split type dry hot air disinfection device and disinfection method thereof |
-
2016
- 2016-06-15 CN CN201620578476.8U patent/CN205784468U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106858271A (en) * | 2017-03-29 | 2017-06-20 | 仲恺农业工程学院 | A kind of pump type heat low temperature and high relative humidity air thawing device |
| CN106858271B (en) * | 2017-03-29 | 2020-09-29 | 仲恺农业工程学院 | Heat pump type low-temperature high-humidity air unfreezing device |
| CN107238276A (en) * | 2017-07-18 | 2017-10-10 | 青岛大学 | Hot pump in low temp drying system during one kind is removable |
| CN111920970A (en) * | 2020-08-18 | 2020-11-13 | 西安市中心医院 | Split type dry hot air disinfection device and disinfection method thereof |
| CN111920970B (en) * | 2020-08-18 | 2021-09-03 | 西安市中心医院 | Split type dry hot air disinfection device and disinfection method thereof |
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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 |
Granted publication date: 20161207 Termination date: 20190615 |
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| CF01 | Termination of patent right due to non-payment of annual fee |