CN205048939U - Dehumidifying heat pump drying unit - Google Patents

Dehumidifying heat pump drying unit Download PDF

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Publication number
CN205048939U
CN205048939U CN201520731348.8U CN201520731348U CN205048939U CN 205048939 U CN205048939 U CN 205048939U CN 201520731348 U CN201520731348 U CN 201520731348U CN 205048939 U CN205048939 U CN 205048939U
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Prior art keywords
subcooler
evaporimeter
condenser
heat
drying unit
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CN201520731348.8U
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Chinese (zh)
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刘晓明
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Guangzhou hot lotus Energy Technology Co., Ltd.
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刘晓明
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse 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 utility model discloses a dehumidifying heat pump drying unit, including refrigerating medium flow and drying medium flow, the refrigerating medium flow is looped in through pipeline end to end by compressor, condenser, subcooler and evaporimeter, the drying medium flow includes return air inlet, heat recovery device, evaporimeter, forced draught blower, subcooler, condenser and air outlet, the return air inlet is connected with heat recovery device heat side, heat recovery device heat side is connected with the evaporimeter through the tuber pipe, tuber pipe and heat recovery device cold side that the evaporimeter came out are connected, the tuber pipe that the heat recovery device cold side came out loops through forced draught blower, subcooler and condenser and is connected with the air outlet. The utility model discloses the forced draught blower sets up between subcooler and heat recovery device cold side, hot -blast the blowing to subcooler, condenser and air outlet of initiatively coming out the heat recovery device cold side, and heat exchange efficiency is higher. And adopt the mode that improves the super -cooled rate and improve the super -heated rate, make the unit have lower evaporating temperature to remove more moisture under high temperature low humidity state.

Description

A kind of dehumidifying heat pump drying unit
Technical field
The utility model relates to technical field of heat pumps, is specifically related to a kind of dehumidifying heat pump drying unit.
Background technology
Tradition drying plant (fire coal, steam etc.), using energy source is low, and environmental-protecting performance is poor.The heat pump dryer developed in recent years, compares traditional drying plant, more energy-conserving and environment-protective, can adapt to the requirement of different stoving process.
But current heat pump dryer also has the following disadvantages: (1) heat regenerator cold side wind is out connected with condenser, and condenser is connected with air outlet by blower fan.In this case, heat regenerator cold side wind out carries out heat exchange with condenser passively by blower fan, and heat exchange efficiency has much room for improvement; (2) when the bakery of heat pump drying unit to high temperature low humidity dehumidifies, the dehumidifying effect of prior art is not enough, can not meet the demands.
Therefore, prior art haves much room for improvement.
Utility model content
The utility model, for above-mentioned Problems existing, provides a kind of dehumidifying heat pump drying unit.
The utility model for achieving the above object, takes following technical scheme to be achieved:
A kind of dehumidifying heat pump drying unit, comprises refrigerant flow process and drying medium flow process;
Described refrigerant flow process comprises compressor, condenser, subcooler and evaporimeter; Described compressor, condenser, subcooler and evaporimeter are joined end to end by pipeline and form loop, carry out heat exchange between described subcooler outlet conduit and evaporator outlet pipeline;
Described drying medium flow process comprises return air inlet, heat regenerator, evaporimeter, pressure fan, subcooler, condenser and air outlet; Described return air inlet is connected with the hot side of heat regenerator; The hot side of described heat regenerator is connected with evaporimeter by airduct; Described evaporimeter airduct is out connected with heat regenerator cold side; Described heat regenerator cold side airduct is out connected with air outlet with condenser by pressure fan, subcooler successively.
Preferably, be provided with gas-liquid separator between described evaporimeter and compressor, be provided with inner disc copper pipe in described gas-liquid separator, described inner disc copper pipe two ends connect subcooler outlet and evaporator respectively.After the refrigerant that subcooler exports enters inner disc copper pipe, and carry out heat exchange between the cryogenic refrigeration medium in gas-liquid separator, refrigerant that subcooler is exported obtains larger degree of supercooling, reduces the evaporating temperature of refrigeration system, to separate out in air moisture more greatly.The heat that simultaneously cold-producing medium of evaporator outlet siphons away inner disc copper pipe in gas-liquid separator gets back to compressor, makes unit possess certain degree of superheat and suction temperature, improves the heating performance of unit.
Preferably, fluid reservoir is provided with between described condenser and subcooler.
Preferably, device for drying and filtering and choke valve is provided with successively between described subcooler and evaporimeter.
Preferably, described return air inlet communicates with the inside of roasting plant, is convenient to the cold wind of the inside of roasting plant to send into the hot side of heat regenerator.
Preferably, described condenser is pipe type heat exchanger;
Preferably, described subcooler is pipe type heat exchanger.
Preferably, described evaporimeter is pipe type heat exchanger.
Preferably, described choke valve is heating power expansion valve or electric expansion valve.
Preferably, described return air inlet is provided with screen pack.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) the utility model adopts the mode improving degree of supercooling and improve the degree of superheat, makes unit under high temperature low humidified state, have lower evaporating temperature to remove more moisture.
(2) through the refrigerant of subcooler, significantly improve degree of supercooling, when these refrigerants enter evaporimeter, make evaporimeter be in lower evaporating temperature, separate out more moisture in air, particularly more can embody water-scavenging capability better effects if when bakery high-temperature low humidity.
(3) heat exchange is carried out between subcooler outlet conduit and evaporator outlet pipeline, refrigerant heat release in subcooler outlet conduit, make refrigeration system obtain larger degree of supercooling, reduce the evaporating temperature of refrigeration system, separate out more moisture in air greatly; Refrigerant heat absorption simultaneously in evaporator outlet pipeline, makes unit possess certain degree of superheat and suction temperature, improves the heating performance of unit.
(4) blower setting is between subcooler and heat regenerator cold side, and initiatively heat regenerator cold side hot blast is out blowed to subcooler, condenser and air outlet, heat exchange efficiency is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of heat pump drying unit that dehumidifies of the utility model;
Fig. 2 is the refrigerant flow chart of a kind of heat pump drying unit that dehumidifies of the utility model;
Fig. 3 is the structural representation of the utility model gas-liquid separator;
Fig. 4 is the top view of the utility model gas-liquid separator.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
See Fig. 1 ~ 4: a kind of dehumidifying heat pump drying unit, comprises refrigerant flow process and drying medium flow process.
Wherein, refrigerant flow process comprises compressor 11, condenser 12, subcooler 30 and evaporimeter 13.Compressor 11, condenser 12, subcooler 30 and evaporimeter 13 are joined end to end by pipeline and form loop, carry out heat exchange between subcooler 30 outlet conduit and evaporimeter 13 outlet conduit.
Drying medium flow process comprises return air inlet 1, heat regenerator 2, evaporimeter 13, pressure fan 3, subcooler 30, condenser 12 and air outlet 4.Return air inlet 1 is connected with the hot side of heat regenerator 2, and the hot side of heat regenerator 2 is connected with evaporimeter 13 by airduct, and evaporimeter 13 airduct is out connected with heat regenerator 2 cold side; Heat regenerator 2 cold side airduct is out connected with air outlet 4 with condenser 12 by pressure fan 3, subcooler 30 successively.
See Fig. 3 ~ 4, between evaporimeter 13 and compressor 11, be provided with gas-liquid separator 15.Gas-liquid separator 15 two end interface 6 itself connects evaporimeter 13 and compressor 11 respectively.Inner disc copper pipe 5 is provided with in gas-liquid separator 15.Inner disc copper pipe 5 liang of end interfaces 7 connect subcooler 30 respectively and export and evaporimeter 13 import.
After the refrigerant that subcooler 30 exports enters inner disc copper pipe 5, and carry out heat exchange between the cryogenic refrigeration medium in gas-liquid separator 15, refrigerant that subcooler 30 is exported obtains larger degree of supercooling, reduces the evaporating temperature of refrigeration system, to separate out in air moisture more greatly.The heat that the cold-producing medium that evaporimeter 13 exports simultaneously siphons away inner disc copper pipe 5 in gas-liquid separator 15 gets back to compressor 11, makes unit possess certain degree of superheat and suction temperature, improves the heating performance of unit.
Fluid reservoir 17 is provided with between condenser 12 and subcooler 30.
Device for drying and filtering 16 and choke valve 14 is provided with successively between subcooler 30 and evaporimeter 13.
Return air inlet 1 communicates with the inside of roasting plant, is convenient to the cold wind of the inside of roasting plant to send into the hot side of heat regenerator 2.
Condenser 12 is pipe type heat exchanger;
Subcooler 30 is pipe type heat exchanger.
Evaporimeter 13 is pipe type heat exchanger.
Choke valve 14 is heating power expansion valve or electric expansion valve.
Return air inlet 1 is provided with screen pack.
Utility model works principle is as follows: refrigerant, under the piston action of compressor 11, is compressed into low temperature low pressure gas the gas of HTHP; High temperature and high pressure gas is cooled into liquid after entering condenser 12, thus releases large calorimetric, and cold air absorbs its heat and temperature constantly rises and becomes high-temperature hot air.Refrigerant is by after condenser 12, enter fluid reservoir 17, subcooler 30, device for drying and filtering 16, choke valve 14 again, then evaporate in evaporimeter 13, heat in absorbing environmental, finally enters compressor 11, iterative cycles like this, refrigerant absorbs the heat of air in evaporimeter 13, under the mechanism of compressor 11, from condenser 12, release heat, change the heat of hot blast into; Whole source pump uses inverse Carnot cycle principle, heating agent (refrigerant) is made to produce physical phase transition (liquid-vapor-liquid state) by heat pump acting, utilize in reciprocation cycle phase transition process and uninterruptedly absorb heat and put thermal property, the heat in low-temperature heat source air is drawn by heat sink (evaporimeter), by dedicated heat exchanger (condenser) continuous heat release in cold air, cold air is made to be warmed up to high-temperature hot air gradually.
The utility model adopts the mode improving degree of supercooling and improve the degree of superheat, makes unit under high temperature low humidified state, have lower evaporating temperature to remove more moisture.
Specific as follows:
(1) through the refrigerant of subcooler, significantly improve degree of supercooling, when these refrigerants enter evaporimeter, make evaporimeter be in lower evaporating temperature, separate out more moisture in air, particularly more can embody water-scavenging capability better effects if when bakery high-temperature low humidity.
(2) heat exchange is carried out between subcooler outlet conduit and evaporator outlet pipeline, refrigerant heat release in subcooler outlet conduit, make refrigeration system obtain larger degree of supercooling, reduce the evaporating temperature of refrigeration system, separate out more moisture in air greatly; Refrigerant heat absorption simultaneously in evaporator outlet pipeline, makes unit possess certain degree of superheat and suction temperature, improves the heating performance of unit.
In addition, the utility model blower setting is between subcooler and heat regenerator cold side, and initiatively heat regenerator cold side hot blast is out blowed to subcooler, condenser and air outlet, heat exchange efficiency is higher.
Only as described above, be only the preferred embodiment of the utility model, when can not limit the scope of the utility model enforcement with this, namely generally according to equivalence change simple done by the content described in the utility model claim and utility model description and modification, all still belong within the utility model claim scope.In addition, summary part and title are only used to the use of auxiliary patent document search, are not used for the interest field of restriction the utility model.

Claims (10)

1. dehumidify a heat pump drying unit, it is characterized in that, comprise refrigerant flow process and drying medium flow process;
Described refrigerant flow process comprises compressor, condenser, subcooler and evaporimeter; Described compressor, condenser, subcooler and evaporimeter are joined end to end by pipeline and form loop, carry out heat exchange between described subcooler outlet conduit and evaporator outlet pipeline;
Described drying medium flow process comprises return air inlet, heat regenerator, evaporimeter, pressure fan, subcooler, condenser and air outlet; Described return air inlet is connected with the hot side of heat regenerator; The hot side of described heat regenerator is connected with evaporimeter by airduct; Described evaporimeter airduct is out connected with heat regenerator cold side; Described heat regenerator cold side airduct is out connected with air outlet with condenser by pressure fan, subcooler successively.
2. one dehumidifying heat pump drying unit according to claim 1, it is characterized in that, be provided with gas-liquid separator between described evaporimeter and compressor, be provided with inner disc copper pipe in described gas-liquid separator, described inner disc copper pipe two ends connect subcooler outlet and evaporator respectively.
3. one dehumidifying heat pump drying unit according to claim 1, is characterized in that, be provided with fluid reservoir between described condenser and subcooler.
4. one dehumidifying heat pump drying unit according to claim 1, is characterized in that, be provided with device for drying and filtering and choke valve successively between described subcooler and evaporimeter.
5. one dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described return air inlet communicates with the inside of roasting plant.
6. one dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described condenser is pipe type heat exchanger.
7. one dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described subcooler is pipe type heat exchanger.
8. one dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described evaporimeter is pipe type heat exchanger.
9. one dehumidifying heat pump drying unit according to claim 4, it is characterized in that, described choke valve is heating power expansion valve or electric expansion valve.
10. one dehumidifying heat pump drying unit according to claim 1, it is characterized in that, described return air inlet is provided with screen pack.
CN201520731348.8U 2015-09-21 2015-09-21 Dehumidifying heat pump drying unit Active CN205048939U (en)

Priority Applications (1)

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CN201520731348.8U CN205048939U (en) 2015-09-21 2015-09-21 Dehumidifying heat pump drying unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520731348.8U CN205048939U (en) 2015-09-21 2015-09-21 Dehumidifying heat pump drying unit

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106895698A (en) * 2017-04-01 2017-06-27 苏州末尘节能科技有限公司 Efficient closed loop dehumidification drying machine
CN107490283A (en) * 2017-08-09 2017-12-19 江苏科技大学 The recovery type heat temperature adjustment heat pump drying device and its operation method that can be rapidly heated
CN109330009A (en) * 2018-11-29 2019-02-15 云南省烟草农业科学研究院 A kind of double dynamical barn of flue-cured tobacco heat pump
CN111692779A (en) * 2020-05-12 2020-09-22 同济大学 Wet-cooling double-effect recovery type high-efficiency heat pump unit for drying sea sedge
CN112050618A (en) * 2020-08-05 2020-12-08 同济大学 Triple-effect heat recovery type air mixing type heat pump drying system and application thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106895698A (en) * 2017-04-01 2017-06-27 苏州末尘节能科技有限公司 Efficient closed loop dehumidification drying machine
CN107490283A (en) * 2017-08-09 2017-12-19 江苏科技大学 The recovery type heat temperature adjustment heat pump drying device and its operation method that can be rapidly heated
CN107490283B (en) * 2017-08-09 2019-09-03 江苏科技大学 The recovery type heat temperature adjustment heat pump drying device and its operation method that can be rapidly heated
CN109330009A (en) * 2018-11-29 2019-02-15 云南省烟草农业科学研究院 A kind of double dynamical barn of flue-cured tobacco heat pump
CN109330009B (en) * 2018-11-29 2021-06-01 云南省烟草农业科学研究院 Double dynamical roast room of flue-cured tobacco heat pump
CN111692779A (en) * 2020-05-12 2020-09-22 同济大学 Wet-cooling double-effect recovery type high-efficiency heat pump unit for drying sea sedge
CN112050618A (en) * 2020-08-05 2020-12-08 同济大学 Triple-effect heat recovery type air mixing type heat pump drying system and application thereof
CN112050618B (en) * 2020-08-05 2022-04-05 同济大学 Triple-effect heat recovery type air mixing type heat pump drying system and application thereof

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GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180427

Address after: 510000 self compiled B District 105, new Ji Avenue, Panyu District new town, Panyu District, Guangzhou, Guangdong.

Patentee after: Guangzhou hot lotus Energy Technology Co., Ltd.

Address before: 411100 No. 1, unit 1, No. 9, new village, Yuhu District, Xiangtan, Hunan, China.

Patentee before: Liu Xiaoming