CN201364008Y - Temperature-adjustable air source heat pump dehumidification drying equipment - Google Patents
Temperature-adjustable air source heat pump dehumidification drying equipment Download PDFInfo
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- CN201364008Y CN201364008Y CNU2009200520087U CN200920052008U CN201364008Y CN 201364008 Y CN201364008 Y CN 201364008Y CN U2009200520087 U CNU2009200520087 U CN U2009200520087U CN 200920052008 U CN200920052008 U CN 200920052008U CN 201364008 Y CN201364008 Y CN 201364008Y
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- 238000001035 drying Methods 0.000 title claims abstract description 34
- 238000007791 dehumidification Methods 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 230000033228 biological regulation Effects 0.000 claims abstract 4
- 238000001816 cooling Methods 0.000 claims description 29
- 239000003507 refrigerant Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims 14
- 239000003570 air Substances 0.000 claims 8
- 239000012080 ambient air Substances 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 claims 2
- 239000013589 supplement Substances 0.000 claims 2
- 230000004087 circulation Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model discloses a temperature-adjustable air source heat pump dehumidification drying equipment, which comprises a low-temperature heat pump system, a high-temperature heat pump system and a temperature-adjustable heat pump system, wherein the low-temperature heat pump system comprises a low-temperature heat pump compressor, a first gas-liquid separator, a first fin evaporator, a first throttling device and a first fin condenser which form a circulation loop; the high-temperature heat pump system comprises a high-temperature heat pump compressor, a second gas-liquid separator, a second fin evaporator, a second throttling device and a second fin condenser which form a circulation loop; the temperature regulation heat pump system comprises a temperature regulation heat pump compressor, a four-way reversing valve, a third finned condenser, a third throttling device, a third finned evaporator and a third gas-liquid separator; and the damp-heat gas from the drying chamber is subjected to gradual dehumidification and temperature reduction through the second fin evaporator and the first fin evaporator, is subjected to temperature rise or temperature reduction through the third fin condenser, and finally is subjected to gradual heating and temperature rise through the first fin condenser and the second fin condenser and then enters the drying chamber.
Description
Technical field
The utility model relates to a kind of dehumidification equipment, relates in particular to the adjustable air source heat pump dehumidification equipment of a kind of temperature.
Background technology
Far below removal moisture drying modes such as fuel heating, electrical heating, therefore in low temperature drying (required baking temperature is lower than 55 ℃ as material), often adopt the heat pump removal moisture drying with its energy consumption of heat pump removal moisture drying.But when material requires the baking temperature height when (as requiring 60～90 ℃ of baking temperatures), common heat pump drying can't be realized; High temperature heat pump often also can't be realized because of lacking high temperature heat source; Carbon dioxide heat-pump can be realized high temperature drying, but because of its cost height, applies difficulty at present; Therefore, in the place that needs the high temperature removal moisture drying, be generally the mode of highly energy-consumings such as fuel heating, electrical heating at present.
The utility model content
At the shortcoming of prior art, the purpose of this utility model provides a kind of
For achieving the above object, the technical solution of the utility model is: the air source heat pump dehumidification equipment that a kind of temperature is adjustable, it comprises hot pump in low temp system, high temperature heat pump system and adjustment heat pump, and this hot pump in low temp system comprises hot pump in low temp compressor, first gas-liquid separator, first evaporator fin, first throttle device and first fin condenser that constitutes a closed circuit; This high temperature heat pump system comprises high temperature heat pump compressor, second gas-liquid separator, second evaporator fin, second throttling arrangement and second fin condenser that constitutes a closed circuit; This adjustment heat pump comprises adjustment heat pump compressor, four-way change-over valve, the 3rd fin condenser, the 3rd throttling arrangement, the 3rd evaporator fin and the 3rd gas-liquid separator, when replenishing the too much heat radiation of hothouse from external environment air heat absorption, adjustment heat pump cold-producing medium flows through successively: adjustment heat pump compressor, four-way change-over valve, the 3rd fin condenser, the 3rd throttling arrangement, the 3rd evaporator fin, four-way change-over valve, the 3rd gas-liquid separator and adjustment heat pump compressor; When the heat too much hothouse was dispersed in the external environment air, adjustment heat pump cold-producing medium flow through successively: adjustment heat pump compressor, four-way change-over valve, the 3rd evaporator fin, the 3rd throttling arrangement, the 3rd fin condenser, four-way change-over valve, the 3rd gas-liquid separator and adjustment heat pump compressor;
This second evaporator fin and first evaporator fin constitute dehumidifying and cooling system step by step, this first fin condenser and second fin condenser constitute heat temperature raising system step by step, from the hot and humid gas of hothouse dehumidifying and cooling step by step through second evaporator fin and first evaporator fin, through the intensification or the cooling of the 3rd fin condenser, enter hothouse behind the heat temperature raising step by step by first fin condenser and second fin condenser at last again.
This hot pump in low temp system also comprises first filter that is connected between the first throttle device and first fin condenser, and this high temperature heat pump system also comprises second filter that is connected between second throttling arrangement and second fin condenser.
This hot pump in low temp system also comprises first reservoir that is connected between first filter and first fin condenser, and this high temperature heat pump system also comprises second reservoir that is connected between second filter and second fin condenser.
This first fin condenser and hot pump in low temp compressor are connected with the level fin condenser first time, this second fin condenser and high temperature heat pump compressor are connected with the second subprime fin condenser, this first, second secondary fin condenser constitutes second heat temperature raising system step by step, enters hothouse behind the heat temperature raising step by step through first, second secondary fin condenser successively from the hot and humid gas of hothouse.
Also be connected with reservoir and filter between the 3rd throttling arrangement and the 3rd evaporator fin.
The air source heat pump dehumidification equipment that a kind of temperature is adjustable, it comprises multistage temperature heat pump and adjustment heat pump, and each grade temperature heat pump comprises heat pump compressor, gas-liquid separator, evaporator fin, throttling arrangement and the fin condenser that constitutes closed circuit; The adjustment heat pump comprises adjustment heat pump compressor, four-way change-over valve, the 3rd fin condenser, the 3rd throttling arrangement, the 3rd evaporator fin and the 3rd gas-liquid separator, when replenishing the too much heat radiation of hothouse from external environment air heat absorption, adjustment heat pump cold-producing medium flows through successively: adjustment heat pump compressor, four-way change-over valve, the 3rd fin condenser, the 3rd throttling arrangement, the 3rd evaporator fin, four-way change-over valve, the 3rd gas-liquid separator and adjustment heat pump compressor; When the heat too much hothouse was dispersed in the external environment air, adjustment heat pump cold-producing medium flow through successively: adjustment heat pump compressor, four-way change-over valve, the 3rd evaporator fin, the 3rd throttling arrangement, the 3rd fin condenser, four-way change-over valve, the 3rd gas-liquid separator and adjustment heat pump compressor;
This evaporator fin constitutes dehumidifying and cooling system step by step according to the temperature rank of heat pump, this fin condenser constitutes heat temperature raising system step by step according to the temperature rank of heat pump, from the hot and humid gas of hothouse dehumidifying and cooling step by step through a plurality of evaporator fins, through the intensification or the cooling of the 3rd fin condenser, enter hothouse behind the heat temperature raising step by step by a plurality of fin condensers at last again.
Each grade temperature heat pump also comprises the secondary fin condenser that is connected between fin condenser and the heat pump compressor, this secondary fin condenser constitutes second heat temperature raising system step by step, enters hothouse behind the heat temperature raising step by step through secondary fin condenser successively from the hot and humid gas of hothouse.
The utility model compared with prior art has following advantage and beneficial effect:
Realize high temperature drying with the adjustable air source heat pump dehumidification equipment of temperature, promptly avoided used heat to discharge the thermal pollution that causes, made full use of used heat again, simultaneously because the intrinsic high energy efficiency of heat pump than characteristics, can make the high temperature drying energy consumption reduce significantly; The too much heat of hothouse is dispersed into the external environment air from the additional hothouse of external environment air heat absorption too much heat radiation or further cool-down dehumidification drying by the adjustment heat pump, guarantee that the hothouse temperature reaches designing requirement, the adjustment heat pump has the characteristics of high energy efficiency ratio too; In conjunction with the condensed in two stages and the two-stage heating of hot pump in low temp, high temperature heat pump system, the air source heat pump dehumidification equipment energy consumption for drying that temperature is adjustable reduces amplitude and can reach more than 60%.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Embodiment 1
As shown in Figure 1, the air source heat pump dehumidification equipment that a kind of temperature is adjustable, it comprises hot pump in low temp system, high temperature heat pump system and adjustment heat pump, this hot pump in low temp system comprises the hot pump in low temp compressor 11 that constitutes a closed circuit, first gas-liquid separator 17, first evaporator fin 16, the first throttle device 15 and first fin condenser 12, this high temperature heat pump system comprises the high temperature heat pump compressor 21 that constitutes a closed circuit, second gas-liquid separator 27, second evaporator fin 26, second throttling arrangement 25 and second fin condenser 22, this adjustment heat pump comprises adjustment heat pump compressor 31, four-way change-over valve 32, the 3rd fin condenser 33, the 3rd throttling arrangement 36, the 3rd evaporator fin 37 and the 3rd gas-liquid separator 38.
When replenishing the too much heat radiation of hothouse from external environment air heat absorption, the adjustment heat pump is from the heat absorption of external environment air, and adjustment heat pump cold-producing medium flows through successively: adjustment heat pump compressor 31, four-way change-over valve 32, the 3rd fin condenser 33, the 3rd throttling arrangement 36, the 3rd evaporator fin 37, four-way change-over valve 32, the 3rd gas-liquid separator 38 and adjustment heat pump compressor 31.When the heat too much hothouse is dispersed in the external environment air, the adjustment heat pump dispels the heat to extraneous surrounding air, and adjustment heat pump cold-producing medium flows through successively: adjustment heat pump compressor 31, four-way change-over valve 32, the 3rd evaporator fin 37, the 3rd throttling arrangement 36, the 3rd fin condenser 33, four-way change-over valve 32, the 3rd gas-liquid separator 38 and adjustment heat pump compressor 31.
This second evaporator fin 26 and first evaporator fin 16 constitute dehumidifying and cooling system step by step, this first fin condenser 12 and second fin condenser 22 constitute heat temperature raising system step by step, from the hot and humid gas of hothouse dehumidifying and cooling step by step through second evaporator fin 26 and first evaporator fin 16, through the intensification or the cooling of the 3rd fin condenser 33, enter hothouse behind the heat temperature raising step by step by first fin condenser 12 and second fin condenser 22 at last again.
The air source heat pump dehumidification equipment that temperature is adjustable comprises two stage dehumidify cooling system, two-stage heat temperature raising system and adjustment heat pump, and each system adopts different cold-producing mediums to satisfy the corresponding work conditional request respectively.This hot pump in low temp system can adopt common refrigerant of low temperature, and as R22, R407C etc., this high temperature heat pump system adopts high temperature refrigerant.
This hot pump in low temp system also comprises first filter 14 that is connected between the first throttle device 15 and first fin condenser 12, and this high temperature heat pump system also comprises second filter 24 that is connected between second throttling arrangement 25 and second fin condenser 22.
This hot pump in low temp system also comprises first reservoir 13 that is connected between first filter 14 and first fin condenser 12, and this high temperature heat pump system also comprises second reservoir 23 that is connected between second filter 24 and second fin condenser 22.
Also be connected with filter 35 and reservoir 34 between the 3rd throttling arrangement 36 and the 3rd fin condenser 33.
The condensation of refrigerant temperature of this hot pump in low temp system is 20 ℃～65 ℃, and the condensation of refrigerant temperature of this high temperature heat pump system is 40 ℃～110 ℃.
The method of operation of the air source heat pump dehumidification equipment that the utility model temperature is adjustable is as follows:
The hot and humid gas of hothouse as 70 ℃ humid air access arrangement, is lowered the temperature by the one-level cooling and dehumidifying through second evaporator fin 26, as is cooled to 40 ℃; Lowered the temperature by the secondary cooling and dehumidifying through first evaporator fin 16 by the air after the cooling of one-level cooling and dehumidifying, as cool to 15 ℃; Be heated through the 3rd fin condenser 33 by the gas after the secondary cooling and dehumidifying cooling or cool-down dehumidification drying again, the gas through the 3rd fin condenser 33 after processed by the one-level heat temperature raising, as is warmed up to 50 ℃ through first fin condenser 12; By the air behind the one-level heat temperature raising through second fin condenser 22 by the secondary heat temperature raising, as be warmed up to 90 ℃; Entered the hothouse dried material by the high temperature drying gas behind the secondary heat temperature raising.
Embodiment 2
Present embodiment has increased secondary fin condenser on the basis of embodiment 1, because the required air circulation of freeze drying is less, when the hothouse air circulation is big, can not make all air circulations all by evaporator fin, otherwise effect on moisture extraction is bad, must bypass part air circulation; The refrigerant vapour temperature of the HTHP that hot pump in low temp, high temperature heat pump are discharged is generally than higher, therefore hot pump in low temp, high temperature heat pump system are provided with corresponding secondary fin condenser respectively, with the air circulation that utilizes bypass refrigerant vapour is done preliminary cooling, and then utilize the gas after the freeze drying to pass through the further condensation of fin condenser, can reduce the condensation temperature of each heat pump, improve the Energy Efficiency Ratio of each system.
The present embodiment concrete structure is as follows: as shown in Figure 2,
Be connected with level fin condenser 18 at this first fin condenser 12 first time with hot pump in low temp compressor 11, this second fin condenser 22 is connected with second subprime fin condenser 28 with high temperature heat pump compressor 21, this first, second secondary fin condenser 18,28 constitutes second heat temperature raising system step by step, enters hothouse behind the heat temperature raising step by step through first, second secondary fin condenser 18,28 successively from the hot and humid gas of hothouse.
The hot and humid gas of hothouse is as being divided into two-way behind 70 ℃ the humid air access arrangement; One tunnel first level fin condenser 18 through hot pump in low temp system tentatively heated, as is heated to 80 ℃, passed through second subprime fin condenser 28 post bake of high temperature heat pump system then by the gas after the preliminary heating, as is heated to 95 ℃; Another route embodiment 1 described intensification or cooling, obtain high temperature drying gas through the two-stage heat temperature raising again by the cooling of two-stage cooling and dehumidifying, the 3rd fin condenser 33; Two-way high temperature drying gas enters the hothouse dried material after mixing.
Embodiment 3
Present embodiment is to realize low temperature and high temperature two levels of thermal pumping system are expanded to multistage situation on the basis of embodiment 1,2.Be specially, the air source heat pump dehumidification equipment that a kind of temperature is adjustable, it comprises multistage temperature heat pump and adjustment heat pump, and each grade temperature heat pump comprises heat pump compressor, gas-liquid separator, evaporator fin, throttling arrangement and the fin condenser that constitutes closed circuit; The adjustment heat pump comprises adjustment heat pump compressor, four-way change-over valve, the 3rd fin condenser, the 3rd throttling arrangement, the 3rd evaporator fin and the 3rd gas-liquid separator, when replenishing the too much heat radiation of hothouse from external environment air heat absorption, adjustment heat pump cold-producing medium flows through successively: adjustment heat pump compressor, four-way change-over valve, the 3rd fin condenser, the 3rd throttling arrangement, the 3rd evaporator fin, four-way change-over valve, the 3rd gas-liquid separator and adjustment heat pump compressor; When the heat too much hothouse was dispersed in the external environment air, adjustment heat pump cold-producing medium flow through successively: adjustment heat pump compressor, four-way change-over valve, the 3rd evaporator fin, the 3rd throttling arrangement, the 3rd fin condenser, four-way change-over valve, the 3rd gas-liquid separator and adjustment heat pump compressor;
This evaporator fin constitutes dehumidifying and cooling system step by step according to the temperature rank of heat pump, this fin condenser constitutes heat temperature raising system step by step according to the temperature rank of heat pump, from the hot and humid gas of hothouse dehumidifying and cooling step by step through a plurality of evaporator fins, through the intensification or the cooling of the 3rd fin condenser, enter hothouse behind the heat temperature raising step by step by a plurality of fin condensers at last again.
Each grade temperature heat pump also comprises the secondary fin condenser that is connected between fin condenser and the heat pump compressor, this secondary fin condenser constitutes second heat temperature raising system step by step, enters hothouse behind the heat temperature raising step by step through secondary fin condenser successively from the hot and humid gas of hothouse.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2009200520087U CN201364008Y (en) | 2009-03-02 | 2009-03-02 | Temperature-adjustable air source heat pump dehumidification drying equipment |
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| CNU2009200520087U CN201364008Y (en) | 2009-03-02 | 2009-03-02 | Temperature-adjustable air source heat pump dehumidification drying equipment |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762141B (en) * | 2010-01-26 | 2011-09-14 | 华南理工大学 | Drying device with combination of heat pump and rotating wheel |
| CN102322735A (en) * | 2011-09-23 | 2012-01-18 | 宁建付 | Energy-saving heat pump dehumidification drying device |
| CN102519139A (en) * | 2012-01-14 | 2012-06-27 | 湖南省浏阳市择明热工器材有限公司 | Air source heat pump system for providing direct high temperature air |
| CN102735041A (en) * | 2012-06-27 | 2012-10-17 | 青岛大学 | Energy-saving method for sizing and drying soft capsules |
| CN103225855A (en) * | 2013-04-09 | 2013-07-31 | 清华大学 | Solution desiccant air handling device circularly driven by multiple stages of heat pumps |
| CN103791712A (en) * | 2014-01-28 | 2014-05-14 | 滁州奥岚格机械有限公司 | Grain drier |
| CN104501566A (en) * | 2015-01-14 | 2015-04-08 | 合肥天鹅制冷科技有限公司 | Air source heat pump drying machine fully recycling exhaust waste heat |
| CN106931742A (en) * | 2017-04-14 | 2017-07-07 | 汉广天工机械设备（北京）有限公司 | A kind of two-part heat pump drying equipment of wet stock containing volatile component and furnace drying method |
| CN106984142A (en) * | 2017-04-21 | 2017-07-28 | 深圳市捷晶能源科技有限公司 | A kind of removal moisture drying system and removal moisture drying method |
| CN107830697A (en) * | 2017-11-30 | 2018-03-23 | 湖南埃瓦新能源科技有限公司 | Air energy heat pump drying system |
| CN108844343A (en) * | 2018-07-30 | 2018-11-20 | 广东欧亚制冷设备制造有限公司 | A kind of heat pump drying system |
| CN108955225A (en) * | 2018-08-21 | 2018-12-07 | 广州晟启能源设备有限公司 | A kind of air-cooled dehumidifying heat pump that can be realized temperature and adjust in due course |
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| CN111023621A (en) * | 2019-12-23 | 2020-04-17 | 东北电力大学 | A multi-stage bypass and multi-stage dehumidification heat pump drying system |
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| CN111288784A (en) * | 2020-03-23 | 2020-06-16 | 河南海弗星换热科技有限公司 | A multi-stage dehumidification heating open and closed loop integrated heat pump unit |
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| CN113521973A (en) * | 2020-09-22 | 2021-10-22 | 北京华云东方探测技术有限公司 | Automatic low-temperature cold trap dewatering system |
| CN114396762A (en) * | 2022-01-19 | 2022-04-26 | 中国科学院理化技术研究所 | Closed heat pump drying system |
| CN114646190A (en) * | 2022-04-17 | 2022-06-21 | 河南三张节能环保工程有限公司 | Raw material drying method and device for industrial and agricultural products |
| CN114857915A (en) * | 2022-04-17 | 2022-08-05 | 河南三张节能环保工程有限公司 | Drying device based on energy recovery technology is used |
| CN116499204A (en) * | 2022-01-19 | 2023-07-28 | 中国科学院理化技术研究所 | Closed Heat Pump Drying System |
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| CN119222818A (en) * | 2023-06-30 | 2024-12-31 | 青岛海尔空调电子有限公司 | Heat pump dehumidification system and dehumidification equipment |
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| CN101762141B (en) * | 2010-01-26 | 2011-09-14 | 华南理工大学 | Drying device with combination of heat pump and rotating wheel |
| CN102322735A (en) * | 2011-09-23 | 2012-01-18 | 宁建付 | Energy-saving heat pump dehumidification drying device |
| CN102519139B (en) * | 2012-01-14 | 2014-11-19 | 湖南省浏阳市择明热工器材有限公司 | Air source heat pump system for providing direct high temperature air |
| CN102519139A (en) * | 2012-01-14 | 2012-06-27 | 湖南省浏阳市择明热工器材有限公司 | Air source heat pump system for providing direct high temperature air |
| CN102735041A (en) * | 2012-06-27 | 2012-10-17 | 青岛大学 | Energy-saving method for sizing and drying soft capsules |
| CN103225855A (en) * | 2013-04-09 | 2013-07-31 | 清华大学 | Solution desiccant air handling device circularly driven by multiple stages of heat pumps |
| CN103225855B (en) * | 2013-04-09 | 2015-09-30 | 清华大学 | The solution dehumidification air processor that a kind of multi-stage heat pump circulation drives |
| CN103791712A (en) * | 2014-01-28 | 2014-05-14 | 滁州奥岚格机械有限公司 | Grain drier |
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| CN104501566A (en) * | 2015-01-14 | 2015-04-08 | 合肥天鹅制冷科技有限公司 | Air source heat pump drying machine fully recycling exhaust waste heat |
| CN106931742A (en) * | 2017-04-14 | 2017-07-07 | 汉广天工机械设备（北京）有限公司 | A kind of two-part heat pump drying equipment of wet stock containing volatile component and furnace drying method |
| CN106984142A (en) * | 2017-04-21 | 2017-07-28 | 深圳市捷晶能源科技有限公司 | A kind of removal moisture drying system and removal moisture drying method |
| CN107830697A (en) * | 2017-11-30 | 2018-03-23 | 湖南埃瓦新能源科技有限公司 | Air energy heat pump drying system |
| CN108844343A (en) * | 2018-07-30 | 2018-11-20 | 广东欧亚制冷设备制造有限公司 | A kind of heat pump drying system |
| CN108955225A (en) * | 2018-08-21 | 2018-12-07 | 广州晟启能源设备有限公司 | A kind of air-cooled dehumidifying heat pump that can be realized temperature and adjust in due course |
| CN110411055A (en) * | 2019-07-10 | 2019-11-05 | 珠海格力电器股份有限公司 | An air-conditioning system with a defrosting device and its control method |
| CN111023621A (en) * | 2019-12-23 | 2020-04-17 | 东北电力大学 | A multi-stage bypass and multi-stage dehumidification heat pump drying system |
| CN111023622A (en) * | 2019-12-23 | 2020-04-17 | 东北电力大学 | Multistage heat pump drying system and control method thereof |
| CN111023621B (en) * | 2019-12-23 | 2021-04-27 | 东北电力大学 | A multi-stage bypass and multi-stage dehumidification heat pump drying system |
| CN111023622B (en) * | 2019-12-23 | 2021-04-27 | 东北电力大学 | A kind of multistage heat pump drying system and control method thereof |
| CN111288784A (en) * | 2020-03-23 | 2020-06-16 | 河南海弗星换热科技有限公司 | A multi-stage dehumidification heating open and closed loop integrated heat pump unit |
| CN113521973A (en) * | 2020-09-22 | 2021-10-22 | 北京华云东方探测技术有限公司 | Automatic low-temperature cold trap dewatering system |
| CN112880381A (en) * | 2021-01-29 | 2021-06-01 | 同济大学 | Closed heat pump drying system of networking of many heat exchangers reorganization |
| CN113009947A (en) * | 2021-03-04 | 2021-06-22 | 河南省奥瑞环保科技股份有限公司 | Temperature control device and system for independent double-path zero-gas generator |
| CN114396762A (en) * | 2022-01-19 | 2022-04-26 | 中国科学院理化技术研究所 | Closed heat pump drying system |
| CN116499204A (en) * | 2022-01-19 | 2023-07-28 | 中国科学院理化技术研究所 | Closed Heat Pump Drying System |
| CN116499203A (en) * | 2022-01-19 | 2023-07-28 | 中国科学院理化技术研究所 | Closed Heat Pump Drying System |
| CN114646190A (en) * | 2022-04-17 | 2022-06-21 | 河南三张节能环保工程有限公司 | Raw material drying method and device for industrial and agricultural products |
| CN114857915A (en) * | 2022-04-17 | 2022-08-05 | 河南三张节能环保工程有限公司 | Drying device based on energy recovery technology is used |
| CN119222818A (en) * | 2023-06-30 | 2024-12-31 | 青岛海尔空调电子有限公司 | Heat pump dehumidification system and dehumidification equipment |
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