CN202734335U - Recovery and utilization system for waste heat of freeze dryer - Google Patents
Recovery and utilization system for waste heat of freeze dryer Download PDFInfo
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- CN202734335U CN202734335U CN2012201841301U CN201220184130U CN202734335U CN 202734335 U CN202734335 U CN 202734335U CN 2012201841301 U CN2012201841301 U CN 2012201841301U CN 201220184130 U CN201220184130 U CN 201220184130U CN 202734335 U CN202734335 U CN 202734335U
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
Provided is a recovery and utilization system for waste heat of a freeze dryer. According to the recovery and utilization system for the waste heat of the freeze dryer, in the freeze drier containing a refrigerating system and a defrosting system, a heat storage system containing a water storage tank (9), a water tank overflow port (8), a compressor high-temperature heat exchanger (11), a heat storage circulation pump (10) and other components is adopted. The heat storage circulation pump is respectively connected with the compressor high-temperature heat exchanger and the water storage tank, the compressor high-temperature heat exchanger is connected with the water storage tank, the heat storage system is connected with a condenser and a refrigerating compressor of the refrigerating system through the compressor high-temperature heat exchanger to absorb heat exhausted by the refrigerating compressor, the heat storage system is connected with a defrosting valve of the defrosting system to supply the heat to the defrosting system for defrosting, and a defrosting water recovery valve (14) is arranged between the water storage tank and a cold trap of the defrosting system and between the water storage tank and a cold trap discharge valve. The recovery and utilization system for the waste heat of the freeze drier can absorb and store the exhausted heat of the refrigerating compressor in the refrigerating system of the freeze drier, and enables the heat to be applied to the cold trap of the defrosting system for the defrosting.
Description
Technical field
It is the system that waste heat reclaims and utilizes that the utility model relates to a kind of heat to freeze dryer needs discharging in service.
Background technology
The process characteristic of vacuum freeze drying is exactly to be frozen into solid-state article under vacuum environment, and distillation is fallen the moisture content in the article and finally made article dry, and the moisture content of distillation, transferring to sublimates on the cold-trap coil pipe again is ice.These characteristics have determined: freeze dryer is that frozen goods or the moisture content of sublimating must configure corresponding refrigeration compressor, and refrigeration compressor is in operation and must continues to discharge a large amount of heats, and the ice of sublimating on the cold-trap coil pipe emits after also must needing a large amount of heats to melt.
At present, the disclosed freeze dryer that contains refrigeration system, defrosting system on the market, its schematic diagram as shown in Figure 1, refrigeration compressor 1, condenser 2, choke valve 3, cold-trap coil pipe 4 are mainly contained in the cold-trap coil pipe cooling loop of its refrigeration system, defrosting system mainly contains defrosting valve 5, cold-trap 6 and cold-trap dump valve 7, what compressor was discharged in the refrigerating system of freeze dryer is to contain the very high temperature and high pressure steam of high heat, by condenser heat is drained; When the freeze dryer cold-trap needs defrosting, open the defrosting valve of defrosting system, in cold-trap, put into defrosting water or defrosting steam, with the dissolving of the ice on the cold-trap coil pipe, by the cold-trap dump valve residue water in the cold-trap is discharged cold-trap at last.
Freeze dryer is in freezing dry process, and cold-trap needs the steam of continuous capturing distillation generation, thus all the time continuously operation of refrigeration compressor, until dry run finishes; The exhaust gas heat of refrigeration compressor outwards discharges by condenser all the time, and this heat is not utilized and wastes; The ice of cold trapping needs ice-melt after each freeze-drying batch, ice-melt needs again defrosting water or the defrosting steam of a large amount of high temperature.The result of this operation is: on the one hand, the exhaust gas heat of refrigeration compressor is all wasted; On the other hand, preparation defrosting water or defrosting steam and consume in a large number again the energy for distillation provides the electric heater of necessary heat; The excessive energy resource consumption of freeze dryer has caused the freeze-drying high cost of freeze-drying article and the serious waste of the energy.
Summary of the invention
For overcoming the deficiency that existing freeze dryer energy consumption is too high and energy waste is serious, the utility model wants to provide a kind of system that the freeze dryer waste heat is reclaimed and utilizes, adopt this system at freeze dryer, not only can stable absorption, store the heat that refrigeration compressor is discharged in the freeze dryer running, and this heat can also be applied to the ice-melt of defrosting system, thereby the minimizing energy loss reduces the freeze-drying cost.
For realizing above-mentioned purpose of the present utility model, the utility model has adopted two kinds of technical schemes of same inventive concept to realize, the first technical scheme is: a kind of system that the freeze dryer waste heat is reclaimed and utilizes, comprise and contain refrigeration compressor, condenser, the refrigeration system of choke valve and cold-trap coil pipe, contain the defrosting valve, the defrosting system of cold-trap and cold-trap dump valve, it is characterized in that adopting a heat reservoir, this heat reservoir contains the storage tank that joins by pipeline, the water tank overflow mouth, the compressor high-temperature heat-exchanging, the heat accumulation circulating pump, hydraulic-pressure regulating valve, the water tank overflow mouth is arranged at defrosting water overflow place of storage tank, the heat accumulation circulating pump both was connected with the compressor high-temperature heat-exchanging, be connected with storage tank again, hydraulic-pressure regulating valve both was connected with the compressor high-temperature heat-exchanging, was connected with storage tank again; Heat reservoir is connected with condenser and the refrigeration compressor of refrigeration system by the compressor high-temperature heat-exchanging; Hydraulic-pressure regulating valve in the defrosting valve of defrosting system and the heat reservoir and the pipeline between the heat accumulation circulating pump are connected, and are provided with defrosting water recovery valve between the cold-trap of storage tank and defrosting system, cold-trap dump valve.
In above-mentioned technical scheme, the utility model can be established a defrosting water and reclaim pump between storage tank and defrosting water recovery valve, storage tank reclaims pump by defrosting water and defrosting water recovery valve reclaims the water that defrosting system is discharged, and reaches the recycling of defrosting water when storage tank is high-order to be placed.
Above-mentionedly with the utility model to the second technical scheme that the freeze dryer waste heat reclaims and the system that utilizes belongs to a total inventive concept be: a kind of system that the freeze dryer waste heat is reclaimed and utilizes, comprise and contain refrigeration compressor, condenser, the refrigeration system of choke valve and cold-trap coil pipe, contain the defrosting valve, the defrosting system of cold-trap and cold-trap dump valve, it is characterized in that adopting a heat reservoir, this heat reservoir contains the storage tank that joins by pipeline, the water tank overflow mouth, the compressor high-temperature heat-exchanging, the heat accumulation circulating pump, the water tank overflow mouth is arranged at defrosting water overflow place of storage tank, the heat accumulation circulating pump both was connected with the compressor high-temperature heat-exchanging, be connected with storage tank again, the compressor high-temperature heat-exchanging is connected with storage tank; Heat reservoir is connected with condenser and the refrigeration compressor of refrigeration system by the compressor high-temperature heat-exchanging; The defrosting valve of defrosting system is connected with the storage tank of heat reservoir by the UTILIZATION OF VESIDUAL HEAT IN circulating pump, is provided with defrosting water recovery valve between the cold-trap of storage tank and defrosting system, cold-trap dump valve.
In above-mentioned the second technical scheme, the utility model also can be established a defrosting water and reclaim pump between storage tank and defrosting water recovery valve, storage tank reclaims pump by defrosting water and defrosting water recovery valve reclaims the water that defrosting system is discharged, and reaches the recycling of defrosting water when storage tank is high-order to be placed.
As can be seen from the above description, described system to freeze dryer waste heat recovery and utilization utilizes heat reservoir that the heat of compressor of refrigerating system of freeze dryer is reclaimed, and with defrosting system the waste heat that heat reservoir reclaims is utilized.Utilize heat reservoir that the heat of compressor of refrigerating system of freeze dryer is reclaimed, formed waste heat recovery system of compressor; With defrosting system the waste heat that heat reservoir reclaims is utilized, formed cold-trap defrosting bootstrap system.For ease of understanding the utility model, the system of described freeze dryer waste heat recovery and utilization is described below:
Utilize heat reservoir that the heat of compressor of refrigerating system of freeze dryer is reclaimed, formed waste heat recovery system of compressor contains two kinds: the first is: contain storage tank, the compressor high-temperature heat-exchanging, the heat accumulation circulating pump, hydraulic-pressure regulating valve, the heat accumulation circulating pump both was connected with the compressor high-temperature heat-exchanging, be connected with storage tank again, the compressor high-temperature heat-exchanging both was connected with the heat accumulation circulating pump, be connected with hydraulic-pressure regulating valve again, hydraulic-pressure regulating valve both was connected with the compressor high-temperature heat-exchanging, be connected with storage tank again, simultaneously, the compressor high-temperature heat-exchanging is connected with condenser and the refrigeration compressor of refrigeration system, is connected by pipeline between each parts; The second is: contain storage tank, compressor high-temperature heat-exchanging, heat accumulation circulating pump, the heat accumulation circulating pump both was connected with the compressor high-temperature heat-exchanging, be connected with storage tank again, the compressor high-temperature heat-exchanging is connected with storage tank, simultaneously, the compressor high-temperature heat-exchanging is connected with condenser and the refrigeration compressor of refrigeration system, is connected by pipeline between each parts.
With defrosting system the waste heat that heat reservoir reclaims is utilized, formed cold-trap defrosting bootstrap system: on the basis of waste heat recovery system of compressor, the defrosting valve of defrosting system is connected with heat reservoir, be recycling defrosting water, the storage tank of heat reservoir is connected with defrosting system by pipeline and defrosting water recovery valve, defrosting water recovery valve one end is connected between the cold-trap and cold-trap dump valve of defrosting system, the other end is connected with storage tank, for making things convenient for the recovery of defrosting water, one defrosting water can be set between defrosting water recovery valve and storage tank reclaim pump, be connected by pipeline between each parts.The connected mode that the defrosting valve is connected with heat reservoir, can be according to the setting of waste heat recovery system of compressor, the first be the defrosting valve that adopts defrosting system with heat reservoir in hydraulic-pressure regulating valve and the pipeline between the heat accumulation circulating pump be connected, the second is that the defrosting valve is connected with storage tank by the UTILIZATION OF VESIDUAL HEAT IN circulating pump.
Freeze dryer adopts system of the present utility model, not only can stable absorption, store the exhaust gas heat of refrigeration compressor in the refrigerating system of freeze dryer, and the heat that absorbs, store can be applied to the cold-trap defrosting of defrosting system.The utility model takes full advantage of the heat that discharges in the freeze dryer running, make the effect that himself has reached refuse reclamation, saved widely the energy, moreover, because the recycling of defrosting water has reduced the consumption of defrosting water, saved water, thereby reduced the freeze-drying cost of article, its reasonable in design is simple, easy to use.
Description of drawings
Fig. 1 is freeze dryer principle schematic of the prior art.
Fig. 2 is the principle schematic of the utility model the first embodiment.
Fig. 3 is the principle schematic of the utility model the second embodiment.
Fig. 4 is the principle schematic of the third embodiment of the utility model.
The specific embodiment
Example below in conjunction with accompanying drawing and implementation is done further detailed description to the utility model, yet described embodiment should not explain in the mode of restriction.
From the systematic schematic diagram that Fig. 2 provides, can find out, it is (to contain refrigeration compressor 1 containing refrigeration system, condenser 2, choke valve 3, cold-trap coil pipe 4), defrosting system (contains defrosting valve 5, cold-trap 6 and cold-trap dump valve 7) freeze dryer in, adopt a heat reservoir, this heat reservoir contains the storage tank 9 that connects by pipeline, water tank overflow mouth 8, heat accumulation circulating pump 10, compressor high-temperature heat-exchanging 11, hydraulic-pressure regulating valve 12, water tank overflow mouth 8 is arranged at defrosting water overflow place of storage tank 9, be used for discharging and enter storage tank 9 interior unnecessary defrosting water, heat accumulation circulating pump 10 both was connected with compressor high-temperature heat-exchanging 11, be connected with storage tank 9 again, hydraulic-pressure regulating valve 12 both was connected with compressor high-temperature heat-exchanging 11, be connected with storage tank 9 again, in system, fill defrosting water during use; Heat reservoir is connected with condenser 2 and the refrigeration compressor 1 of refrigeration system by compressor high-temperature heat-exchanging 11, behind the heat that the defrosting water absorption refrigeration compressor 1 in the compressor high-temperature heat-exchanging 11 is discharged, enters in the storage tank 9 by hydraulic-pressure regulating valve 12; High-temperature heat-exchanging 11 in the defrosting valve 5 of defrosting system and the heat reservoir and the pipeline c place between the hydraulic-pressure regulating valve 12 are connected, hot defrosting water in the heat reservoir enters in the defrosting system by defrosting valve 5, be provided with defrosting water recovery valve 14 and defrosting water and reclaim pump 13 between the cold-trap 6 of storage tank 9 and defrosting system, cold-trap dump valve 7, storage tank 9 reclaims pump 13 by defrosting water recovery valve 14 and defrosting water and reclaims the cold water of defrosting systems discharges.
Can find out the principle schematic of the second embodiment of the present invention that provides from Fig. 3, the difference of the first embodiment of it and Fig. 2 is that it is as the hot water supply centre, on the pipeline between defrosting valve 5 access heat accumulation circulating pumps 10 and the compressor high-temperature heat-exchanging 11 with the pipeline between heat accumulation circulating pump 10 and the compressor high-temperature heat-exchanging 11.
For UTILIZATION OF VESIDUAL HEAT IN, the mode that compressor high-temperature heat-exchanging 11 in defrosting valve 5 shown in Fig. 2 and the heat reservoir and the pipeline c place between the hydraulic-pressure regulating valve 12 are connected, it is a kind of connected mode of the best, can also be with the pipeline of the heat accumulation circulating pump 10 in the heat reservoir and any position between the hydraulic-pressure regulating valve 12 as the hot water supply centre, for example shown in Fig. 3 with the pipeline between heat accumulation circulating pump 10 and the compressor high-temperature heat-exchanging 11 as the hot water supply centre, on the pipeline between defrosting valve 5 access heat accumulation circulating pumps 10 and the compressor high-temperature heat-exchanging 11.
From the embodiment that Fig. 4 provides, can find out, it is (to contain refrigeration compressor 1 containing refrigeration system, condenser 2, choke valve 3, cold-trap coil pipe 4), defrosting system (contains defrosting valve 5, cold-trap 6 and cold-trap dump valve 7) freeze dryer in, adopt a heat reservoir, this heat reservoir contains the storage tank 9 that connects by pipeline, water tank overflow mouth 8, heat accumulation circulating pump 10, compressor high-temperature heat-exchanging 11, water tank overflow mouth 8 is arranged at defrosting water overflow place of storage tank 9, heat accumulation circulating pump 10 both was connected with compressor high-temperature heat-exchanging 11, be connected with storage tank 9 again, compressor high-temperature heat-exchanging 11 is connected with storage tank 9, fills defrosting water during use in system; Heat reservoir is connected with condenser 2 and the refrigeration compressor 1 of refrigeration system by compressor high-temperature heat-exchanging 11, behind the heat that the defrosting water absorption refrigeration compressor 1 in the compressor high-temperature heat-exchanging 11 is discharged, enters in the storage tank 9 by pipeline; The storage tank of heat reservoir (9) is connected with the defrosting valve (5) of defrosting system by UTILIZATION OF VESIDUAL HEAT IN circulating pump (15), also namely: the water inlet of UTILIZATION OF VESIDUAL HEAT IN circulating pump 15 is connected with storage tank 9, the delivery port of UTILIZATION OF VESIDUAL HEAT IN circulating pump 15 is connected with defrosting valve 5, adopt UTILIZATION OF VESIDUAL HEAT IN circulating pump 15 direct pump water from the storage tank 9 of heat reservoir to be applied in the defrosting system, hot defrosting water in the heat reservoir enters in the cold-trap 6 of defrosting system by UTILIZATION OF VESIDUAL HEAT IN circulating pump 15 and defrosting valve 5, at the cold-trap 6 of storage tank 9 with defrosting system, be provided with defrosting water recovery valve 14 and defrosting water between the cold-trap dump valve 7 and reclaim pump 13, storage tank 9 reclaims pump 13 by defrosting water recovery valve 14 and defrosting water and reclaims the cold water that defrosting system is discharged.
Using method of the present utility model is: when the temperature of defrosting water in refrigeration compressor 1 running and the heat reservoir is lower than refrigeration compressor 1 delivery temperature, open the heat accumulation circulating pump 10 of heat reservoir, defrosting water is under the effect of heat accumulation circulating pump 10, utilize heat reservoir compressor high-temperature heat-exchanging 11 continuous absorptions, store the exhaust gas heat of the refrigeration compressor 1 in the refrigeration system after, by Fig. 2 or hydraulic-pressure regulating valve 27 shown in Figure 3 or directly get back in the storage tank 9 by pipeline shown in Figure 4; When cold-trap need to defrost, be communicated with heat reservoir and defrosting valve 5, specific as follows: 1., if the defrosting valve 5 in the defrosting system is when pipeline between heat accumulation circulating pump 10 and the hydraulic-pressure regulating valve 12 is connected, open the heat accumulation circulating pump 10 of heat reservoir, because the effect of hydraulic-pressure regulating valve 12, defrosting water in the pipeline remains under the certain pressure, make the defrosting water in the heat reservoir be in state for subsequent use, the defrosting valve 5 of control defrosting system, make defrosting water enter cold-trap 6 and be sprayed on the cold-trap coil pipe 4, when defrosting water water level in the cold-trap arrives the defrosting water recovery lowest water level of setting, control defrosting water recovery valve 14 and defrosting water reclaim pump 13, defrosting water pump in the cold-trap is returned in the storage tank 9, make defrosting water in defrosting system and heat reservoir, loop defrosting, after finishing defrosting, close defrosting valve 5 and heat accumulation circulating pump 10, defrosting water reclaims closes after defrosting water that pump 13 is evacuated to setting with cold-trap 6 interior residual defrosting water reclaims lowest water level, open cold-trap dump valve 7, after defrosting water remaining in defrosting water recovery pump 13 and the defrosting water recovery channel is emptying, each related valves was closed and is finished defrosting; 2., when if the defrosting valve 5 in the defrosting system is connected to storage tank 9 by UTILIZATION OF VESIDUAL HEAT IN circulating pump 15, open UTILIZATION OF VESIDUAL HEAT IN circulating pump 15, simultaneously, the defrosting valve 5 of control defrosting system, make defrosting water enter cold-trap 6 and be sprayed on the cold-trap coil pipe 4, when defrosting water water level in the cold-trap arrives the defrosting water recovery lowest water level of setting, control defrosting water recovery valve 14 and defrosting water reclaim pump 13, defrosting water pump in the cold-trap is returned storage tank 9, make like this defrosting water in defrosting system and heat reservoir, loop defrosting, after finishing defrosting, close defrosting valve 5 and UTILIZATION OF VESIDUAL HEAT IN circulating pump 15, defrosting water reclaims closes after defrosting water that pump 13 is evacuated to setting with cold-trap 6 interior residual defrost water reclaims lowest water level, open cold-trap dump valve 7, after defrosting water remaining in defrosting water recovery pump 13 and the defrosting water recovery channel is emptying, each related valves was closed and is finished defrosting.
Hydraulic-pressure regulating valve described in the utility model is that the hydraulic pressure buied on the market is regulated check valve, and its effect is to make that the defrosting water in the pipeline remains on the required hydraulic pressure between compressor high-temperature heat-exchanging and the hydraulic-pressure regulating valve.
Other all parts described in the utility model is the parts for directly buying on the market also, and the method for attachment between them is all the those of ordinary skill general knowledge in common knowledge in this area, here just no longer narration.
Technical scheme described in the utility model not only can stand-alone application, also simultaneously can many public cover heat reservoir of freeze dryers, form heat accumulation station Application of composite.
According to the utility model, in the production that can be widely applied to freeze dryer, can also undergo technological transformation to existing freeze dryer, to reach the purpose of energy efficiency.
Claims (3)
1. system that the freeze dryer waste heat is reclaimed and utilizes, comprise and contain refrigeration compressor (1), condenser (2), the refrigeration system of choke valve (3) and cold-trap coil pipe (4), contain defrosting valve (5), the defrosting system of cold-trap (6) and cold-trap dump valve (7), it is characterized in that adopting a heat reservoir, this heat reservoir contains the storage tank (9) that joins by pipeline, water tank overflow mouth (8), compressor high-temperature heat-exchanging (11), heat accumulation circulating pump (10), hydraulic-pressure regulating valve (12), water tank overflow mouth (8) is arranged at defrosting water overflow place of storage tank (9), heat accumulation circulating pump (10) both was connected with compressor high-temperature heat-exchanging (11), be connected with storage tank (9) again, hydraulic-pressure regulating valve (12) both was connected with compressor high-temperature heat-exchanging (11), was connected with storage tank (9) again; Heat reservoir is connected with condenser (2) and the refrigeration compressor (1) of refrigeration system by compressor high-temperature heat-exchanging (11); Hydraulic-pressure regulating valve (12) in the defrosting valve (5) of defrosting system and the heat reservoir and the pipeline between the heat accumulation circulating pump (10) are connected, and are provided with defrosting water recovery valve (14) between the cold-trap (6) of storage tank (9) and defrosting system, cold-trap dump valve (7).
2. system that the freeze dryer waste heat is reclaimed and utilizes, comprise and contain refrigeration compressor (1), condenser (2), the refrigeration system of choke valve (3) and cold-trap coil pipe (4), contain defrosting valve (5), the defrosting system of cold-trap (6) and cold-trap dump valve (7), it is characterized in that adopting a heat reservoir, this heat reservoir contains the storage tank (9) that joins by pipeline, water tank overflow mouth (8), compressor high-temperature heat-exchanging (11), heat accumulation circulating pump (10), water tank overflow mouth (8) is arranged at defrosting water overflow place of storage tank (9), heat accumulation circulating pump (10) both was connected with compressor high-temperature heat-exchanging (11), be connected with storage tank (9) again, compressor high-temperature heat-exchanging (11) is connected with storage tank (9); Heat reservoir is connected with condenser (2) and the refrigeration compressor (1) of refrigeration system by compressor high-temperature heat-exchanging (11); The storage tank of heat reservoir (9) is connected with the defrosting valve (5) of defrosting system by UTILIZATION OF VESIDUAL HEAT IN circulating pump (15), is provided with defrosting water recovery valve (14) between the cold-trap (6) of storage tank (9) and defrosting system, cold-trap dump valve (7).
3. according to claim 1 or the 2 described systems that the freeze dryer waste heat is reclaimed and utilizes, it is characterized by and between storage tank (9) and defrosting water recovery valve (14), establish defrosting water recovery pump (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201841301U CN202734335U (en) | 2012-04-27 | 2012-04-27 | Recovery and utilization system for waste heat of freeze dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201841301U CN202734335U (en) | 2012-04-27 | 2012-04-27 | Recovery and utilization system for waste heat of freeze dryer |
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| CN202734335U true CN202734335U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201841301U Expired - Fee Related CN202734335U (en) | 2012-04-27 | 2012-04-27 | Recovery and utilization system for waste heat of freeze dryer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620550A (en) * | 2012-04-27 | 2012-08-01 | 王海军 | System and method for recovering and utilizing waste heat of freeze drier |
| CN110425827A (en) * | 2019-08-28 | 2019-11-08 | 上海盈达空调设备股份有限公司 | Lyophilization system based on recuperation of heat and photothermal technique |
| CN110455041A (en) * | 2019-08-28 | 2019-11-15 | 上海盈达空调设备股份有限公司 | Freeze-drying method based on recuperation of heat and photothermal technique |
| CN111457683A (en) * | 2020-05-19 | 2020-07-28 | 烟台大学 | Novel waste heat and condensed water recovery freeze dryer and operation method thereof |
| CN113945022A (en) * | 2021-11-12 | 2022-01-18 | 华商国际工程有限公司 | Refrigeration and defrosting system |
| CN110425827B (en) * | 2019-08-28 | 2024-07-02 | 上海盈达空调设备股份有限公司 | Freeze-drying system based on heat recovery and photo-thermal technology |
-
2012
- 2012-04-27 CN CN2012201841301U patent/CN202734335U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620550A (en) * | 2012-04-27 | 2012-08-01 | 王海军 | System and method for recovering and utilizing waste heat of freeze drier |
| CN102620550B (en) * | 2012-04-27 | 2014-11-26 | 王海军 | System and method for recovering and utilizing waste heat of freeze drier |
| CN110425827A (en) * | 2019-08-28 | 2019-11-08 | 上海盈达空调设备股份有限公司 | Lyophilization system based on recuperation of heat and photothermal technique |
| CN110455041A (en) * | 2019-08-28 | 2019-11-15 | 上海盈达空调设备股份有限公司 | Freeze-drying method based on recuperation of heat and photothermal technique |
| CN110425827B (en) * | 2019-08-28 | 2024-07-02 | 上海盈达空调设备股份有限公司 | Freeze-drying system based on heat recovery and photo-thermal technology |
| CN111457683A (en) * | 2020-05-19 | 2020-07-28 | 烟台大学 | Novel waste heat and condensed water recovery freeze dryer and operation method thereof |
| CN111457683B (en) * | 2020-05-19 | 2023-06-02 | 烟台大学 | Novel waste heat and condensate recovery freeze dryer and operation method thereof |
| CN113945022A (en) * | 2021-11-12 | 2022-01-18 | 华商国际工程有限公司 | Refrigeration and defrosting system |
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