CN103471367A - Latent-heat-of-vaporization recycling type air-source heat pump dryer - Google Patents

Latent-heat-of-vaporization recycling type air-source heat pump dryer Download PDF

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Publication number
CN103471367A
CN103471367A CN2013103856279A CN201310385627A CN103471367A CN 103471367 A CN103471367 A CN 103471367A CN 2013103856279 A CN2013103856279 A CN 2013103856279A CN 201310385627 A CN201310385627 A CN 201310385627A CN 103471367 A CN103471367 A CN 103471367A
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China
Prior art keywords
air
heat
heat exchanger
condenser
evaporimeter
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Pending
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CN2013103856279A
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Chinese (zh)
Inventor
王言明
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YUTIAN COUNTY RUIYANG AIR TECHNOLOGY SERVICES Co Ltd
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YUTIAN COUNTY RUIYANG AIR TECHNOLOGY SERVICES Co Ltd
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Priority to CN2013103856279A priority Critical patent/CN103471367A/en
Publication of CN103471367A publication Critical patent/CN103471367A/en
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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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Abstract

The invention discloses a latent-heat-of-vaporization recycling type air-source heat pump dryer mainly comprising a body, a vaporizer, a condenser, a compressor and an expansion valve. The vaporizer and the condenser are both positioned in an airtight air passage in the body, an air inlet and an air outlet are formed in the air passage, the air inlet is positioned on one side of the vaporizer, the air outlet is positioned on one side of the condenser, and an air circulation fan is further arranged in the air passage and used for forcing air in the passage to circulate. When the dryer is used, the air inlet and the air outlet of the air passage can be correspondingly connected with an air outlet and an air inlet of a drying chamber, so that latent heat of vaporization emitted by dried articles can be completely recovered and is enabled to be recycled; the latent-heat-of-vaporization recycling type air-source heat pump dryer with task performance 31 times of that of common air-source heat pump dryers can be widely applied to the drying field of fruits, food, medicinal materials, washing products and the like.

Description

A kind of latent heat of vaporization recycling type air source heat pump dryer
Technical field
The present invention relates to a kind of air source heat pump dryer, be specifically related to a kind of latent heat of vaporization recycling type air source heat pump dryer.
Background technology
At present, generally acknowledged air source heat pump dryer is that evaporimeter is placed on outside baking room, within condenser is placed on to baking room, evaporimeter is for absorbing the heat energy of outside air, and give condenser thermal energy transfer, the heat energy that condenser distributes make in baking room by the temperature increase of drying article, and then make to be evaporated by the moisture in drying article, form the air of high temperature, high humidity in baking room; Discharge again the air of a certain amount of high temperature in baking room, high humidity, supplement the low temperature outside the baking room of equivalent, the air of low humidity simultaneously, thereby reduce by the moisture of drying article, to reach the purpose of oven dry.The drying course of this dryer is all being emitted by the latent heat of vaporization of drying article, thereby has caused a large amount of wastes of heat, greatly reduces the operating efficiency of dryer; Up to the present, find all to reclaim the latent heat of vaporization and to the air source heat pump dryer of latent heat of vaporization cycling and reutilization.
Summary of the invention
In order to solve above-mentioned technical point problem, the invention provides a kind of latent heat of vaporization recycling type air source heat pump dryer, this dryer can reclaim the latent heat of vaporization of all being distributed by drying article, thereby increases substantially the operating efficiency of dryer, reduces the electric quantity consumption of air source heat pump.
Purpose of the present invention is carried out specific implementation by the following technical programs:
A kind of latent heat of vaporization recycling type air source heat pump dryer, mainly comprise body, evaporimeter, condenser, compressor and expansion valve, described evaporimeter and condenser all are arranged in the airtight air duct of body one, be provided with air inlet and air outlet on described air duct, described air inlet is positioned at evaporimeter one side, described air outlet is positioned at condenser one side, also is provided with the circulation of air blower fan in described air duct, for forcing the passage inner air flow.
Described circulation of air blower fan is the adjustable circulation of air blower fan of air quantity.
Described evaporimeter lower end is provided with drip pipe.
Also be provided with First Heat Exchanger and the second heat exchanger in described air duct, described First Heat Exchanger is between air inlet and evaporimeter, described the second heat exchanger is between evaporimeter and condenser, between described First Heat Exchanger and the second heat exchanger, by medium, be connected, the circulation by medium makes First Heat Exchanger absorb heat energy, the second heat exchanger discharges heat energy.
Be provided with the thermal-insulating sealing layer on the inwall of described air duct.
Described evaporimeter is finned evaporator, and described condenser is finned cooler, and described First Heat Exchanger and the second heat exchanger are finned heat exchanger.
The beneficial effect of a kind of latent heat of vaporization recycling type of the present invention air source heat pump dryer is: in use, can with exhaust outlet and the air intake vent of baking room, be connected the air inlet of air duct and air outlet are corresponding respectively, can reclaim the latent heat of vaporization given out by drying article fully like this, and make latent heat of vaporization cycling and reutilization, whole drying course, only have the discharge of condensed water, without any the discharge of waste gas used heat, can be widely used in the drying field of fruit, food, medicinal material, articles for washing.The task performance of the full reclaiming type air source heat pump of this latent heat of vaporization dryer is 31 times of normal air source heat pump dryer usefulness.
The accompanying drawing explanation
Below according to drawings and embodiments the present invention is described in further detail.
Fig. 1 is the structural representation of a kind of latent heat of vaporization recycling type of the present invention air source heat pump dryer;
Fig. 2 is that schematic diagram is looked on the left side of a kind of latent heat of vaporization recycling type of the present invention air source heat pump dryer;
Fig. 3 is the structural representation of the present invention while being used in conjunction with baking room in drying work;
Fig. 4 is the another kind of structural representation of the present invention while being used in conjunction with baking room in drying work.
In figure: the 1-body; The 2-air duct; 3-thermal-insulating sealing layer; The 4-condenser; 5-circulation of air blower fan; The 6-evaporimeter; The 7-drip pipe; The miscellaneous part of 8-heat pump; 9-dryer electric-controlled parts; The 10-air inlet; The 11-air outlet; The 12-First Heat Exchanger; 13-the second heat exchanger; 14-upper air circulation fan; The 15-thermometer; The 16-relative humidity meter; 17-baking room exhaust outlet; 18-condensation water collection metering device; 19-baking room air intake vent; 20-bottom circulation of air fan; 21-is dried thing; The 22-baking room; The 23-indoor set; 24-cold-producing medium connecting line; The 25-off-premises station.
The specific embodiment
As shown in Figure 1-2, the described a kind of latent heat of vaporization recycling type air source heat pump dryer of the embodiment of the present invention, mainly comprise body 1, evaporimeter 6, the miscellaneous part 8 of condenser 4 and heat pump, the miscellaneous part 8 of heat pump mainly comprises compressor, expansion valve etc., evaporimeter 6 and condenser 4 all are positioned at an airtight air duct 2 on body 1 top, the miscellaneous part 8 of heat pump all is installed on the right lower quadrant of body 1, lower left quarter at body 1 is provided with dryer electric-controlled parts 9, for controlling dryer, be provided with air inlet 10 and air outlet 11 on air duct 2, air inlet 10 is positioned at evaporimeter 6 one sides, air outlet 11 is positioned at condenser 4 one sides, also be provided with circulation of air blower fan 5 in air duct 2, for forcing the passage inner air flow.Be provided with drip pipe 7 in evaporimeter 6 lower ends, the condensed water produced after being convenient to high temperature, high humidity gas are dehumidified by dryer is discharged in time.
Preferably, circulation of air blower fan 5 adopts the adjustable circulation of air blower fan of air quantity, by timely adjustment circulation of air air quantity, with temperature guaranteeing from baking room air out and entering evaporimeter, is down to below corresponding dew-point temperature.
In order to reach better effect, also be provided with First Heat Exchanger 12 and the second heat exchanger 13 in air duct 2, First Heat Exchanger 12 is between air inlet 10 and evaporimeter 6, the second heat exchanger 13 is between evaporimeter 6 and condenser 4, between First Heat Exchanger 12 and the second heat exchanger 13, by medium, be connected, and making First Heat Exchanger absorb heat energy by the circulation of medium, the second heat exchanger discharges heat energy.Like this when the latent heat of vaporization of being dried the thing discharge enters dryer, under the effect of circulation of air blower fan 5, make high temperature, the gas of high humidity is first lowered the temperature by First Heat Exchanger 12, then by evaporimeter 6, carry out the reducing temperature twice dehumidifying, now become low temperature, the gas of low humidity will be heated for the first time by the second heat exchanger 13 time, then by condenser 4, the heat energy that cold-producing medium obtains in evaporimeter 6 now is released in condenser 4, the gas of having heated through the second heat exchanger 13 is heated again, make it to become more high temperature, the gas of low humidity is for needing the article of drying.
Further, for the latent heat of vaporization that prevents from being discharged by drying article, scatter and disappear, be provided with thermal-insulating sealing layer 3 on the inwall of air duct 2, scatter and disappear for preventing the latent heat of vaporization, reduce energy loss.
In order to improve heat exchange efficiency, evaporimeter is adopted to finned evaporator, condenser adopts finned cooler, and First Heat Exchanger and the second heat exchanger all adopt finned heat exchanger.
As shown in Figure 3, the structural representation of the present invention while being used in conjunction with a baking room in use, require the baking room 22 coordinated with the present invention for airtight, insulation, and it and the external world do not have circulation of air, there is no the transmission of heat yet, as shown in Figure 3, the air inlet 10 of this dryer air duct 2 is connected by pipeline with the baking room exhaust outlet 17 on baking room 22 tops, air outlet 11 is connected by pipeline with the baking room air intake vent 19 of baking room 22 bottoms, under the driving of air volume adjustable blower fan 5, the high temperature of part on baking room 22, the air drying room exhaust outlet 17 of high humidity enters in air duct 2, successively by First Heat Exchanger 12, evaporimeter 6, the second heat exchanger 13 and condenser 4, twice cool-down dehumidification that has passed through First Heat Exchanger 12 and evaporimeter 6 becomes low temperature, the gas of low humidity, through the second heat exchanger 13 and condenser 4 twice intensification, the acting heat energy produced and the heat energy that dehumidifying obtains that are added with compressor outward become high temperature, the air of low humidity enters baking room air intake vent 19, make by circulation of air fan 20 in bottom in baking room and upper air circulation fan 14 high temperature entered, low humid gas is in the interior running of baking room 22, for being dried thing 21, circulate and recycle the vaporization potential of being dried the thing discharge with this, reach the purpose of dehumidifying drying.
For the drying course of dryer, divide substantially two stages: first stage is to the air in baking room and by the drying article warm-up period; Second stage is the dehumidifying drying stage.The present invention is mainly used in the stage of second stage dehumidifying drying, and hang down the drying course of article for the bake out temperature requirement, as the oven dry of washing rear clothing, the present invention can carry out the drying course of first stage and second stage simultaneously, according to the drying condition that will be reached by oven dry thing 21, in the process of drying, can measure by observing thermometer 15 and relative humidity meter 16 relative humidity and the temperature of baking room, when reaching requirement numerical value, the proof drying course completes, simultaneously, also a condensation water collection metering device 18 can be set in the lower end of condensate draining pipe 7, discharge rate according to condensed water, measure the degree of drying.
As shown in Figure 4, for the have relatively high expectations drying course (as the oven dry of Chinese herbal medicine) of article of bake out temperature, or the lower occasion (as winter) of initial temperature in baking room, baking room can be joined a small-sized air source heat pump dryer, off-premises station 25 to indoor set 23 heat supplies, completes the process of heating of first stage by cold-producing medium connecting line 24 specially.
The present invention is the full reclaiming type air source heat pump of a kind of latent heat of vaporization dryer, can make latent heat of vaporization cycling and reutilization, task performance is 31 times of normal air source heat pump dryer usefulness, can be widely used in the drying field of fruit, food, medicinal material, articles for washing.
Its basis is as follows:
The moisture removal w (kg/h) of normal air source heat pump dryer calculates by following formula:
W=3600N/(k△h)
In formula: w-maximum moisture removal (kg/h)
The actual heat energy obtained of N-baking room, generally press 60% of heat pump caloric value and calculate
The enthalpy difference of △ h-steam and water inlet, generally get △ h=2635(kj/kg)
The K=1.05 of k-generally
Calculating for this latent heat of vaporization recycling type air source heat pump dryer moisture removal, in above formula, only have △ h to change, and other each value does not all change.
If before drying, the temperature of article is 20 ℃, the temperature of dehumidifying condensed water is 40 ℃
h=(40℃-20℃)4.186kj/kg=84kj/kg
So, the moisture removal of this dryer is common dryer moisture removal
3600N/ (84k) ÷ 3600N/ (2635k)=31 times.
Under the prerequisite of equal power consumption, its oven dry amount is 31 times of common dryer.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention; being intended to explanation is put in evaporimeter and condenser in same airtight passage vaporization potential is recycled; be not limited to the present invention; for a person skilled in the art; its technical scheme that still can put down in writing aforementioned each embodiment is regulated; perhaps part technical characterictic wherein is equal to replacement; within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.

Claims (6)

1. a latent heat of vaporization recycling type air source heat pump dryer, mainly comprise body, evaporimeter, condenser, compressor and expansion valve, it is characterized in that: described evaporimeter and condenser all are arranged in the airtight air duct of body one, be provided with air inlet and air outlet on described air duct, described air inlet is positioned at evaporimeter one side, described air outlet is positioned at condenser one side, also is provided with the circulation of air blower fan in described air duct, for forcing the passage inner air flow.
2. a kind of latent heat of vaporization recycling type air source heat pump dryer according to claim 1, it is characterized in that: described circulation of air blower fan is the adjustable circulation of air blower fan of air quantity.
3. a kind of latent heat of vaporization recycling type air source heat pump dryer according to claim 2, it is characterized in that: described evaporimeter lower end is provided with drip pipe.
4. according to the described a kind of latent heat of vaporization recycling type air source heat pump dryer of claims 1 to 3 any one, it is characterized in that: also be provided with First Heat Exchanger and the second heat exchanger in described air duct, described First Heat Exchanger is between air inlet and evaporimeter, described the second heat exchanger is between evaporimeter and condenser, between described First Heat Exchanger and the second heat exchanger, by medium, be connected, the circulation by medium makes First Heat Exchanger absorb heat energy, the second heat exchanger discharges heat energy.
5. a kind of latent heat of vaporization recycling type air source heat pump dryer according to claim 4, is characterized in that: be provided with the thermal-insulating sealing layer on the inwall of described air duct.
6. a kind of latent heat of vaporization recycling type air source heat pump dryer according to claim 5, it is characterized in that: described evaporimeter is finned evaporator, described condenser is finned cooler, and described First Heat Exchanger and the second heat exchanger are finned heat exchanger.
CN2013103856279A 2013-08-30 2013-08-30 Latent-heat-of-vaporization recycling type air-source heat pump dryer Pending CN103471367A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279853A (en) * 2014-09-28 2015-01-14 东莞市蓝冠环保节能科技有限公司 Air source fluoride pump type drying and dehumidifying integrated machine and drying system thereof
CN110762954A (en) * 2019-10-22 2020-02-07 万海东 Energy-saving drying system and working method thereof

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JP2000161855A (en) * 1998-11-25 2000-06-16 Sangyo Kiki Kenkyusho:Kk Heat pump type dehumidiying/drying apparatus for joss stick
US6321460B1 (en) * 1999-12-23 2001-11-27 Keum Su Jin Drying apparatus
CN1695029A (en) * 2002-09-26 2005-11-09 松下电器产业株式会社 Drying apparatus
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CN201364009Y (en) * 2009-03-02 2009-12-16 东莞市康源节能科技有限公司 Air source high-temperature heat pump dehumidification drying equipment
CN101694342A (en) * 2009-09-19 2010-04-14 汪强 Inner circulation type heat pump drying device
CN102243009A (en) * 2010-05-12 2011-11-16 何润岚 Air source heat pump drying device
CN102322735A (en) * 2011-09-23 2012-01-18 宁建付 Energy-saving heat pump dehumidification drying device
CN202254710U (en) * 2011-09-01 2012-05-30 郑州市飞航真空干燥技术有限公司 Heat-pump type drier heat source
CN103123215A (en) * 2013-03-11 2013-05-29 孙应真 Intelligent hot-air drying control device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000161855A (en) * 1998-11-25 2000-06-16 Sangyo Kiki Kenkyusho:Kk Heat pump type dehumidiying/drying apparatus for joss stick
US6321460B1 (en) * 1999-12-23 2001-11-27 Keum Su Jin Drying apparatus
CN1695029A (en) * 2002-09-26 2005-11-09 松下电器产业株式会社 Drying apparatus
CN101532770A (en) * 2008-07-29 2009-09-16 珠海慧生能源技术发展有限公司 Gas-gas heat pump drier
CN101363682A (en) * 2008-09-01 2009-02-11 珠海慧生能源技术发展有限公司 Energy-conserving drying system
CN201364009Y (en) * 2009-03-02 2009-12-16 东莞市康源节能科技有限公司 Air source high-temperature heat pump dehumidification drying equipment
CN101694342A (en) * 2009-09-19 2010-04-14 汪强 Inner circulation type heat pump drying device
CN102243009A (en) * 2010-05-12 2011-11-16 何润岚 Air source heat pump drying device
CN202254710U (en) * 2011-09-01 2012-05-30 郑州市飞航真空干燥技术有限公司 Heat-pump type drier heat source
CN102322735A (en) * 2011-09-23 2012-01-18 宁建付 Energy-saving heat pump dehumidification drying device
CN103123215A (en) * 2013-03-11 2013-05-29 孙应真 Intelligent hot-air drying control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279853A (en) * 2014-09-28 2015-01-14 东莞市蓝冠环保节能科技有限公司 Air source fluoride pump type drying and dehumidifying integrated machine and drying system thereof
CN104279853B (en) * 2014-09-28 2016-04-20 东莞市蓝冠环保节能科技有限公司 A kind of air-source fluorine pump type dries dehumidifier all-in-one and drying system thereof
CN110762954A (en) * 2019-10-22 2020-02-07 万海东 Energy-saving drying system and working method thereof

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Application publication date: 20131225