CN114893971A - Screw type drying system - Google Patents
Screw type drying system Download PDFInfo
- Publication number
- CN114893971A CN114893971A CN202210524632.2A CN202210524632A CN114893971A CN 114893971 A CN114893971 A CN 114893971A CN 202210524632 A CN202210524632 A CN 202210524632A CN 114893971 A CN114893971 A CN 114893971A
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- Prior art keywords
- drying
- air
- heat exchange
- pipe
- water
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Links
- 238000001035 drying Methods 0.000 title claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000003507 refrigerant Substances 0.000 claims abstract description 27
- 239000012212 insulator Substances 0.000 claims abstract description 18
- 238000007605 air drying Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 7
- 239000002912 waste gas Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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- 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
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/047—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- 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
Abstract
The invention relates to the technical field of high-load drying, in particular to a screw type drying system which comprises a refrigerant circulating system, a water circulating system and an air drying system, wherein the refrigerant circulating system comprises a screw type compressor, a condenser and an evaporator which are sequentially communicated along the flowing direction of a refrigerant, the water circulating system comprises a water inlet pipe, a heat exchange pipe and a water outlet pipe which are sequentially communicated along the water flow direction, the air drying system comprises an induced draft fan, a drying machine drying flow channel, a heat insulator and an air outlet pipe which are sequentially communicated along the air flowing direction, the water inlet of the water inlet pipe is communicated with the water outlet of the condenser, the water outlet of the water outlet pipe is communicated with the water inlet of the condenser, the heat exchange pipe penetrates through the drying machine drying flow channel and is used for supplying heat to the drying machine drying flow channel, and the evaporator is accommodated in the heat insulator. The problem of the unit frosting in winter is solved, the control of unit system itself is simplified simultaneously, improves evaporimeter heat exchange efficiency again, reduces the occupation of land space of on-the-spot installation.
Description
Technical Field
The invention relates to the technical field of high-load drying, in particular to a screw type drying system.
Background
The existing drying industry mainly uses an air volume module water machine of a scroll compressor to meet hot water required by a drying place, a plurality of units are combined in parallel to meet the requirement along with the increase of load requirement, and hot air passing through a dryer is directly discharged to outdoor air through an exhaust port.
The existing drying industry has the following defects:
1. with the increasing load, the vortex type air-cooled module water machine can not meet the load required by a drying place gradually;
2. when a plurality of units are connected in parallel, a field applied water system becomes complicated, and the installation place of the units and the pipeline installation of the water system occupy more space;
3. in winter, the module water machine has the problem of defrosting, and can not stably meet the normal requirements of drying places.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a screw type drying system.
The purpose of the invention is realized by the following technical scheme: the utility model provides a screw drying system, includes refrigerant circulation system, hydrologic cycle system and air-dries the system, refrigerant circulation system includes screw compressor, condenser and the evaporimeter that communicates in proper order along the flow direction of refrigerant, water circulation system includes inlet tube, heat exchange tube and the outlet pipe that communicates in proper order along the rivers direction, air-dry system includes draught fan, drying-machine stoving runner, insulator and the play tuber pipe that communicates in proper order along the air flow direction, the water inlet of inlet tube and the delivery port intercommunication of condenser, the delivery port of outlet pipe and the water inlet intercommunication of condenser, the heat exchange tube is worn through drying-machine stoving runner is used for doing drying-machine stoving runner heat supply, the evaporimeter holds and locates in the insulator.
Preferably, the condenser is a shell-and-tube condenser; the evaporator is a finned evaporator.
Preferably, the heat exchange tube passes through the air inlet end of the drying flow channel of the dryer through the air outlet end of the drying flow channel of the dryer.
Preferably, the heat exchange tube is a multi-section heat exchange tube, and the multi-section heat exchange tube is provided with a plurality of sections of heat exchange areas which are accommodated and distributed in the drying runner of the dryer.
Preferably, the refrigerant cycle system further comprises an economizer communicated between the condenser and the evaporator, a shunt pipe communicated between the condenser and the economizer, a first expansion valve arranged on the shunt pipe, a one-way valve arranged on the shunt pipe, and a return pipe communicated between the screw compressor and the economizer, wherein a shunt heat exchange inlet of the economizer is communicated with a refrigerant outlet of the shunt pipe, and a shunt heat exchange outlet of the economizer is communicated with a refrigerant inlet of the return pipe.
Preferably, the refrigerant cycle system further includes a second expansion valve disposed between the evaporator and the economizer.
Preferably, the water circulation system further comprises a water pump communicated between the heat exchange pipe and the water outlet pipe.
Preferably, the air-drying system further comprises a centrifugal fan accommodated in the air outlet pipe.
Preferably, the screw compressor is a two-stage compression permanent magnet variable frequency screw compressor; the water pump is a variable frequency water pump; the centrifugal fan is a variable frequency centrifugal fan.
Preferably, the air-drying system further comprises an exhaust pipe communicated between the drying flow channel of the dryer and the heat insulator, a balance air pipe communicated with the side wall of the exhaust pipe, and an air volume balance valve arranged on the balance air pipe.
The invention has the beneficial effects that:
1. according to the screw type drying system, the screw type compressor is used for replacing a plurality of traditional parallel scroll compressors, so that a drying place with a large load requirement is met;
2. the screw compressor is used for replacing a plurality of traditional parallel scroll compressors, so that the installation space of field application and the pipeline design of a water system are reduced;
3. the evaporator is accommodated and arranged in the heat insulation body, high-temperature and high-humidity waste gas generated in the drying process of the drying machine drying flow channel enters the heat insulation body and carries out centralized large-temperature-difference heat exchange with the evaporator, the problem of frosting of a unit in winter is solved, frosting of the unit is effectively avoided, defrosting by additionally adding other auxiliary heating equipment or a switching module is avoided, long-time stable operation of the evaporator is promoted, control of the unit system is simplified, heat exchange efficiency of the evaporator can be obviously improved, a drying place with large load demand is further met, high-efficiency heat exchange effect can still be exerted after the whole space of the evaporator is reduced, and occupied space of field installation is further reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the reference signs are: 1. a screw compressor; 2. a condenser; 3. an evaporator; 4. a water inlet pipe; 5. a heat exchange pipe; 6. a water outlet pipe; 7. an induced draft fan; 8. drying the runner by a dryer; 9. a thermal insulator; 10. an air outlet pipe; 11. an economizer; 12. a shunt tube; 13. a first expansion valve; 14. a one-way valve; 15. a return pipe; 16. a second expansion valve; 17. a water pump; 18. a centrifugal fan; 19. an exhaust duct; 20. balancing the air pipe; 21. an air quantity balance valve.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1, a screw drying system, including refrigerant circulation system, water circulating system and air-dry system, refrigerant circulation system includes screw compressor 1, condenser 2 and the evaporimeter 3 that communicates in proper order along the flow direction of refrigerant, water circulation system includes inlet tube 4, heat exchange tube 5 and the outlet pipe 6 that communicates in proper order along the rivers direction, air-dry system includes draught fan 7, drying-machine stoving runner 8, insulator 9 and the tuber pipe 10 that communicates in proper order along the air flow direction, the water inlet of inlet tube 4 and the delivery port intercommunication of condenser 2, the delivery port of outlet pipe 6 and the water inlet intercommunication of condenser 2, heat exchange tube 5 wears to warp drying-machine stoving runner 8 is used for doing drying-machine stoving runner 8 heat supplies, evaporimeter 3 holds and locates in insulator 9.
According to the screw type drying system, the screw type compressor 1 is used for replacing a plurality of traditional parallel scroll compressors, so that a drying place with a large load requirement is met; the screw compressor 1 is used for replacing a plurality of traditional parallel scroll compressors, so that the installation space of field application and the pipeline design of a water system are reduced; the evaporator 3 is accommodated in the heat insulator 9, high-temperature and high-humidity waste gas generated in the drying process of the drying runner 8 of the dryer enters the heat insulator 9 and performs centralized large-temperature-difference heat exchange with the evaporator 3, the problem of frosting of the unit in winter is solved, frosting of the unit is effectively avoided, additional addition of other auxiliary heating equipment or a switching module is avoided for defrosting, the long-time stable operation of the evaporator 3 is promoted, the control of the unit system is simplified, the heat exchange efficiency of the evaporator 3 can be obviously improved, the drying place with large load demand is further met, the efficient heat exchange effect can be still exerted after the overall space of the evaporator 3 is reduced, and the occupied space of field installation is further reduced.
In the present embodiment, the condenser 2 is a shell-and-tube condenser 2; the evaporator 3 is a finned evaporator 3.
By adopting the technical scheme, the refrigerant discharged by the compressor exchanges heat with water of a water circulation system by utilizing the shell-and-tube condenser 2, the water of the water circulation system enters the water inlet pipe 4 after being heated by the condenser 2, flows through the heat exchange pipe 5 and the water outlet pipe 6, and the heat exchange pipe 5 penetrates through the drying runner 8 of the dryer and is used for supplying heat to the drying runner 8 of the dryer; draught fan 7 brings the air into drying-machine stoving runner 8, and the air exchanges heat with heat exchange tube 5 to heating air, so that hot-air drying article, hot-air flows through insulator 9 and play tuber pipe 10 again, in insulator 9, adopts fin evaporator 3 heat transfer, and the heat transfer effect is better, and it can be littleer than traditional screw unit evaporimeter 3 to design occupation space.
In this embodiment, the heat exchanging pipe 5 passes through the air outlet end of the drying machine drying flow channel 8 and passes through the air inlet end of the drying machine drying flow channel 8.
By adopting the technical scheme, the temperature of the air inlet end of the drying machine drying flow channel 8 is gradually increased to the temperature of the air outlet end of the drying machine drying flow channel 8, the water temperature of the heat exchange tube 5 at the position of the air outlet end of the drying machine drying flow channel 8 is gradually reduced to the water temperature of the heat exchange tube 5 at the position of the air inlet end of the drying machine drying flow channel 8, and the water heat quantity of the heat exchange tube 5 is favorably and reasonably utilized.
In this embodiment, the heat exchanging pipe 5 is a multi-section heat exchanging pipe 5, and the multi-section heat exchanging pipe 5 has a plurality of heat exchanging areas which are accommodated and distributed in the drying runner 8 of the dryer.
By adopting the technical scheme, the heat exchange efficiency between the multi-section heat exchange tube 5 and the drying runner 8 of the dryer can be improved, and the water utilization rate of the water circulation system can be improved. Preferably, the multi-stage heat exchange tube 5 has four heat exchange zones.
In this embodiment, the refrigerant cycle system further includes an economizer 11 communicated between the condenser 2 and the evaporator 3, a bypass pipe 12 communicated between the condenser 2 and the economizer 11, a first expansion valve 13 disposed on the bypass pipe 12, a check valve 14 disposed on the bypass pipe 12, and a return pipe 15 communicated between the screw compressor 1 and the economizer 11, wherein a bypass heat exchange inlet of the economizer 11 is communicated with a refrigerant outlet of the bypass pipe 12, and a bypass heat exchange outlet of the economizer 11 is communicated with a refrigerant inlet of the return pipe 15.
By adopting the technical scheme, the economizer 11 is adopted to supplement air for circulation, so that the efficiency of screw compression refrigeration circulation can be improved, the refrigerating capacity is improved, the exhaust temperature of the screw compressor 1 is reduced, and the energy efficiency of the system is further improved while the heat exchange capacity of the system is increased.
In the present embodiment, the refrigerant cycle system further includes a second expansion valve 16 disposed between the evaporator 3 and the economizer 11. Further, the first expansion valve 13 and the second expansion valve 16 are both electronic expansion valves.
In this embodiment, the water circulation system further includes a water pump 17 communicated between the heat exchange pipe 5 and the water outlet pipe 6.
By adopting the technical scheme, the circulation process of water flowing in the water inlet pipe 4, the heat exchange pipe 5, the water outlet pipe 6 and the condenser 2 is promoted.
In this embodiment, the air drying system further includes a centrifugal fan 18 accommodated in the air outlet pipe 10.
By adopting the technical scheme, the centrifugal fan 18 continuously leads the air after the heat exchange of the heat insulator 9 out of the air outlet pipe 10 so as to promote the heat exchange of the evaporator 3.
In this embodiment, the screw compressor 1 is a two-stage compression permanent magnet frequency conversion screw compressor; the water pump 17 is a variable frequency water pump 17; the centrifugal fan 18 is a variable frequency centrifugal fan 18.
By adopting the technical scheme, the two-stage compression permanent magnet frequency conversion screw type air compressor can ensure that the condenser 2 can exchange heat to output high-temperature outlet water at 80 ℃, has wide operation range and more flexible application, and can meet different process requirements of different drying materials at different stages; and the two-stage compression permanent magnet variable frequency screw air compressor, the variable frequency water pump 17, the variable frequency centrifugal fan 18 and the like are adopted for variable frequency regulation, so that the energy efficiency is effectively improved, and meanwhile, the drying quality can be ensured according to different load requirements in combination with the accurate control system capacity output of the existing controller.
In this embodiment, the air drying system further includes an exhaust duct 19 communicated between the drying flow channel 8 of the dryer and the heat insulator 9, a balance air duct 20 communicated with a side wall of the exhaust duct 19, and an air volume balance valve 21 disposed on the balance air duct 20.
By adopting the technical scheme, when the environment and the load of the whole drying system change, if deviation occurs between the air intake and the air exhaust, air supplement/exhaust adjustment is carried out through the air balance valve 21 of the balance air pipe 20, so that the air balance of the air drying system is realized.
The screw type drying system integrally adopts a two-stage compression permanent magnet frequency conversion screw type air compressor, a shell and tube type condenser 2, a finned evaporator 3 and an economizer 11 as a refrigerant circulating system, hot water below 80 ℃ is mainly provided for the water circulating system after heat exchange, the hot water flows through a drying runner 8 of the dryer through a circulating water pump 17, an induced draft fan 7 introduces outdoor fresh air into the drying runner 8 of the dryer, indirect heat exchange is carried out with the hot water below 80 ℃ by virtue of a heat exchange tube 5, the fresh air absorbs heat to generate hot air for drying articles, moreover, a multi-section heat exchange tube 5 is provided with a plurality of sections of heat exchange zones which are all contained and distributed in the drying runner 8, the heat exchange tube 5 passes through an air inlet end of the drying runner 8 through an air outlet end of the drying runner 8, the temperature of the hot water of the heat exchange tube 5 is reduced, and the water heat quantity of the heat exchange tube 5 is more reasonably utilized, the energy utilization is improved. After hot water in the heat exchange pipe 5 exchanges heat through the drying runner 8 of the dryer, the temperature of the hot water is reduced, and the hot water is conveyed back to the condenser 2 through the water pump 17 for indirect heat exchange so as to realize circulating heat exchange. The hot air carries moisture to become the damp and hot waste gas about 40 ℃ after drying the article through drying-machine stoving runner 8, utilizes centrifugal fan 18 to lead damp and hot waste gas to the insulator 9 through exhaust pipe 19 is concentrated and is carried out the heat transfer, and the damp and hot waste gas after the make full use of stoving carries out waste heat recovery, promotes the evaporation heat absorption efficiency of refrigerant to obviously promote the system efficiency, discharge waste gas through air-out pipe 10 at last.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a screw drying system which characterized in that: including refrigerant circulation system, hydrologic cycle system and air-dry system, refrigerant circulation system includes screw compressor, condenser and the evaporimeter that communicates in proper order along the flow direction of refrigerant, water circulation system includes inlet tube, heat exchange tube and the outlet pipe that communicates in proper order along the rivers direction, air-dry system includes draught fan, drying-machine stoving runner, insulator and the play tuber pipe that communicates in proper order along the air flow direction, the water inlet of inlet tube and the delivery port intercommunication of condenser, the delivery port of outlet pipe and the water inlet intercommunication of condenser, the heat exchange tube is worn through drying-machine stoving runner is used for doing drying-machine stoving runner heat supply, the evaporimeter holds and locates in the insulator.
2. The screw drying system of claim 1, wherein: the condenser is a shell-and-tube condenser; the evaporator is a finned evaporator.
3. The screw drying system of claim 1, wherein: the heat exchange tube passes through the air outlet end of the drying runner of the dryer and penetrates through the air inlet end of the drying runner of the dryer.
4. The screw drying system of claim 3, wherein: the heat exchange tube is a multi-section heat exchange tube, and the multi-section heat exchange tube is provided with a plurality of sections of heat exchange areas which are all accommodated and distributed in the drying runner of the dryer.
5. The screw drying system of claim 1, wherein: refrigerant cycle system still including communicate in economizer between condenser and the evaporimeter, communicate in shunt tubes between condenser and the economizer, set up in the first expansion valve of shunt tubes, set up in the check valve of shunt tubes and communicate in the back flow between screw compressor and the economizer, the reposition of redundant personnel heat transfer entry of economizer communicates with the refrigerant outlet of shunt tubes, the reposition of redundant personnel heat transfer export of economizer communicates with the refrigerant inlet of back flow.
6. The screw drying system of claim 5, wherein: the refrigerant cycle system further includes a second expansion valve disposed between the evaporator and the economizer.
7. The screw drying system of claim 1, wherein: the water circulation system also comprises a water pump communicated between the heat exchange pipe and the water outlet pipe.
8. The screw drying system of claim 7, wherein: the air-drying system further comprises a centrifugal fan which is arranged on the air outlet pipe.
9. The screw drying system of claim 8, wherein: the screw compressor is a two-stage compression permanent magnet variable frequency screw compressor; the water pump is a variable frequency water pump; the centrifugal fan is a variable frequency centrifugal fan.
10. The screw drying system of claim 1, wherein: the air drying system further comprises an exhaust pipe communicated between the drying machine drying flow channel and the heat insulator, a balance air pipe communicated with the side wall of the exhaust pipe, and an air volume balance valve arranged on the balance air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210524632.2A CN114893971A (en) | 2022-05-13 | 2022-05-13 | Screw type drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210524632.2A CN114893971A (en) | 2022-05-13 | 2022-05-13 | Screw type drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114893971A true CN114893971A (en) | 2022-08-12 |
Family
ID=82722659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210524632.2A Pending CN114893971A (en) | 2022-05-13 | 2022-05-13 | Screw type drying system |
Country Status (1)
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| CN (1) | CN114893971A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203443292U (en) * | 2013-07-18 | 2014-02-19 | 成都蓉阳科技有限公司 | Integrated heat-pump drying unit for dehumidification, low-temperature air spraying and enthalpy increase of fresh air of air source |
| CN104697133A (en) * | 2013-12-04 | 2015-06-10 | 南京化纤股份有限公司 | Hot wind recycling process |
| CN106705590A (en) * | 2016-12-13 | 2017-05-24 | 河南佰衡节能科技股份有限公司 | Heat pump type water heating drying system |
| CN110296545A (en) * | 2018-03-22 | 2019-10-01 | 烟台大学 | A kind of air conditioning of indirect heat exchange, supplying hot water, drying integrated heat pump assembly |
| CN111678278A (en) * | 2020-06-24 | 2020-09-18 | 西安建筑科技大学 | Preheating type air source heat pump frost inhibition system and method |
| CN216011337U (en) * | 2021-02-07 | 2022-03-11 | 东净（厦门）科技有限公司 | V-shaped evaporator with shell protection |
| CN217423804U (en) * | 2022-05-13 | 2022-09-13 | 广东欧科空调制冷有限公司 | Screw type drying system |
-
2022
- 2022-05-13 CN CN202210524632.2A patent/CN114893971A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203443292U (en) * | 2013-07-18 | 2014-02-19 | 成都蓉阳科技有限公司 | Integrated heat-pump drying unit for dehumidification, low-temperature air spraying and enthalpy increase of fresh air of air source |
| CN104697133A (en) * | 2013-12-04 | 2015-06-10 | 南京化纤股份有限公司 | Hot wind recycling process |
| CN106705590A (en) * | 2016-12-13 | 2017-05-24 | 河南佰衡节能科技股份有限公司 | Heat pump type water heating drying system |
| CN110296545A (en) * | 2018-03-22 | 2019-10-01 | 烟台大学 | A kind of air conditioning of indirect heat exchange, supplying hot water, drying integrated heat pump assembly |
| CN111678278A (en) * | 2020-06-24 | 2020-09-18 | 西安建筑科技大学 | Preheating type air source heat pump frost inhibition system and method |
| CN216011337U (en) * | 2021-02-07 | 2022-03-11 | 东净（厦门）科技有限公司 | V-shaped evaporator with shell protection |
| CN217423804U (en) * | 2022-05-13 | 2022-09-13 | 广东欧科空调制冷有限公司 | Screw type drying system |
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