CN201215433Y - Wind quantity variable roller type side-supply side-return medium high temperature heat pump dryer - Google Patents

Wind quantity variable roller type side-supply side-return medium high temperature heat pump dryer Download PDF

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Publication number
CN201215433Y
CN201215433Y CNU2008200813153U CN200820081315U CN201215433Y CN 201215433 Y CN201215433 Y CN 201215433Y CN U2008200813153 U CNU2008200813153 U CN U2008200813153U CN 200820081315 U CN200820081315 U CN 200820081315U CN 201215433 Y CN201215433 Y CN 201215433Y
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China
Prior art keywords
heat pump
heat
return air
rotating cylinder
high temperature
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Expired - Fee Related
Application number
CNU2008200813153U
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Chinese (zh)
Inventor
王辉涛
王�华
王仕博
黄晓艳
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Priority to CNU2008200813153U priority Critical patent/CN201215433Y/en
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Publication of CN201215433Y publication Critical patent/CN201215433Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a variable air volume roller type lateral-feed lateral-reflux high temperature heat pump dryer, comprising a heat pump working medium circulation loop, an air internal circulation loop and an electric drum. The bottom space of a drum (5) is arranged with a heat pump compressor (1), while the two spaces are separated by a thermal insulation wallboard (12), the lower part of the dry space is arranged with a water collection groove and a drain pipe (8), a backboard type recooler (11) of the heat pump refrigeration system is arranged at the back, two drive motor circulation fan motors (9) and a drum motor circulation fan motor (10) are mounted at the back correspondingly. The heating performance of the dryer reaches 3.8 and the dryer can save electricity of 50% at least more than the electric heating dryers, and has adjustable drying ability according to the object kinds, water contents and the demand on dry time.

Description

Variable air rate drum-type side is sent side return air moderate and high temperature heat drying machine
Technical field
The utility model relates to a kind of variable air rate drum-type side and send side return air moderate and high temperature heat drying machine, be a kind of dry machine, apparatus that uses the low boiling working fluid steam compression heat pump, heat (or steam) in particular for mushroom, pine nut, pseudo-ginseng, sanchi flower, rhizoma Gastrodiae, day lily, wizened other the suitable common electrical that reaches of all kinds of meat such as tealeaves, administration's sheet, walnut, auricularia auriculajudaes, belong to using energy source and energy-saving field.
Background technology
Can make the drying equipment of article fast dewatering in industrial or agricultural and daily life, important role be arranged, but the drying equipment of existing market supply all is to adopt electrical heating or steam-heated (0.4-0.6MPa gauge pressure) mode, just directly exclusive after the moisture content of absorbing articles through the high temperature drying air after the heating, cause the waste extremely of energy, especially electrical heating type drying equipment consumption electric weight is very big, the power consumption of (water) washing dryer that as a drying capacity is 30kg/h is just more than 50Kw, cause operating cost very high, product tea district in Yunnan, moisture content all will become the gross tea of moisture content about 20% through completing at the bright leaf more than 40%, what now all adopt in the process of completing is the heat drying equipment that uses firewood (employing steam is also arranged recently), there are bigger environmental pollution and energy dissipation, in the dry run of the living tea that is dewatered to moisture content about 8% by gross tea, past is the mode that adopts the sun to shine, now because needs that autumn tea is produced and the further requirement that improves tea quality, a lot of tea processing factories are all adopting steam or electric seasoning equipment, cross in the heating process of range request and also have firing equipment energy consumption problem of higher in the filial piety of sending out fast of producing ripe tea simultaneously.Steam compression heat pump can absorb heat from low-temperature heat source, and heating performance coefficient is electrically heated 3-4 times more than, is very superior (confession) the hot equipment of energy-conservation adding of performance.Comparative maturity is hot pump in low temp dry heat equipment now, but there is the temperature not high (in 70 ℃) of the dry air that is used to dewater in this equipment, dry wettability power is lower, seriously limited its practical application, the art of this patent can make the temperature of dry air reach more than 100 ℃, can be applied to most dry field, thus the energy consumption of having saved drying equipment greatly.
Summary of the invention
The purpose of this utility model is to provide a kind of variable air rate drum-type side to send side return air moderate and high temperature heat drying machine, be a kind of dry machine, apparatus that uses the low boiling working fluid steam compression heat pump, can realize than the power consumption of electrical drying equipment saving more than at least 50%.
The technical scheme that its technical problem that solves the utility model adopts is:
This dry equipment comprises: 1) heat pump fluid closed circuit, 2) the inside air closed circuit, 3) motorized pulleys (rotating speed 32r/min) are circular rotating cylinder, wherein:
1) the heat pump fluid closed circuit comprises: 3P heat pump compressor, evaporation coil, condenser coil, backboard formula recooler, reservoir, vapour liquid separator, electronic expansion valve and copper pipe, refrigeration working medium device for drying and filtering;
2) the inside air closed circuit comprises: two grades of speed governing low noise blower fans are variable air rate low noise circulating fan, plenum chamber, return air chamber, withdrawable screen pack, stainless steel sandwich heat-insulating wall.
The outer formation cuboid of this dry equipment is cabinet type, need dry article to be placed on by the circular rotating cylinder of porous inside at the middle part, both sides at rotating cylinder are provided with return air chamber and plenum chamber respectively, separate with it with stainless steel porous plate (do return air with air-supply with), variable air rate low noise blower fan is housed at the return air chamber top, to the blower fan suction inlet withdrawable screen pack is being set from return air chamber, order is provided with evaporimeter and condenser on the pipeline that is formed by heat-insulating wall of blower fan outlet, in the evaporimeter bottom water-collecting tray and drainpipe are set, space in the bottom of rotating cylinder is provided with heat pump compressor, keep apart by heat-insulating wall between two spaces, in the bottom of dry place water leg and drainpipe are set, the backboard formula recooler of heat pump refrigerating system is arranged on the back side, circulating fan adopts the direct connection transmission, rotating cylinder adopts the belt pulley transmission, and two drive motors are installed in relevant position, the back side.
Employing R600a (iso-butane, C4H10), R600 (normal butane, C4H10), R236ea (HFC-236fa, C3H2F6), and R601 (pentane, C5H12), R245fa (pentafluoropropane, C3H3F5), (isopentane, C5H12), n-hexane (C6H14) is as the refrigeration system cycle fluid for R601a1.
Air circulation fans adopts double speed blower fan (or frequency conversion fan) to change its drying capacity.
Can be used for mushroom, pine nut, pseudo-ginseng, sanchi flower, rhizoma Gastrodiae, day lilies, the wizened occasions that reach other suitable common electrical heating (or steam) drying equipment of all kinds of meat such as tealeaves, administration's sheet, walnut, auricularia auriculajudae.
Operation principle and process are as follows:
(1) air circulation: the interior moist hot-air of porous rotating cylinder passes through top return air porous barrier and is arranged at the screen pack of fans entrance, added cooling cooling in the evaporimeter that is sent to the heat pump that is arranged at the top by side variable air rate low noise circulating fan, when air themperature drops to dew point when following, airborne moisture content just freeze-outs, in time get rid of, air after dewatering is sent to and is arranged at that heating becomes heated dry air in the condenser that is close to behind the evaporimeter, then by being located at the wind pushing cavity of side, the air-supply porous barrier, be blown into the moisture of the dry place absorbing articles at the porous rotating cylinder place of placing article, be recycled blower fan afterwards again and suck beginning air circulation once more, airborne heat after the dry goods is just absorbed by the evaporimeter of heat pump fully like this, be converted into the high temperature condensation heat that adds hot-air by heat pump cycle again, realized the recycling of heat, circulating fan has height two retaining rotating speeds, adopts high-grade rotating speed when needs rapid draing.
(2) heat pump: low-temp low-pressure working medium (as the R601a) steam that is produced by the air heat of coming from dry place in the evaporimeter is inhaled into compressor through behind the vapour liquid separator, HTHP working substance steam process blast pipe after overcompression is in condenser, heating in the air that evaporimeter comes, cycle fluid also is condensed into the liquid condition under the condensing pressure, pass through the cold again of backboard formula condenser again, through behind the device for drying and filtering, flow into electronic throttle, become the low-temp low-pressure vapour-liquid two-phase mixture under the evaporating pressure, finished evaporation process by air heat in the time of in the process evaporimeter, arrive vapour liquid separator again, thereby finish a circulation.Heat pump compressor is placed on bottom space.
When specifically article being carried out drying, can reach requirement according to the moisture content of article to drying time, adjust the rotating speed of circulating fan, thereby reach the purpose that changes rate of drying.
The beneficial effects of the utility model are:
(1) can reach than the power consumption of electrical drying equipment saving more than at least 50%, heating performance coefficient is 3.8;
(2) can realize the inner loop of dry air, environment is not had thermal pollution;
(3) can be according to the kind of article, the drying capacity that moisture content reaches equipment that the specific requirement of drying time is adjusted.
Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing, but structure of the present utility model is not limited to shown in the accompanying drawing.
Description of drawings
Fig. 1 is the elevation that variable air rate drum-type side is sent side return air moderate and high temperature heat drying machine;
Fig. 2 is the side view that variable air rate drum-type side is sent side return air moderate and high temperature heat drying machine;
Fig. 3 is the vertical view that variable air rate drum-type side is sent side return air moderate and high temperature heat drying machine;
Fig. 4 is the refrigeration system piping diagram that variable air rate drum-type side is sent side return air moderate and high temperature heat drying machine.
The specific embodiment
Embodiment
Among Fig. 1,2,3 and 4, the utility model comprises 3P heat pump compressor 1, evaporimeter 2, condenser 3, variable air rate low noise blower fan 4, circular rotating cylinder (32 rev/mins) 5, return air chamber stainless steel porous barrier 6, plenum chamber stainless steel porous barrier 7, drainpipe 8, circulating fan motor 9, tube rotaring motor 10, backboard formula recooler 11, heat-insulating wall 12, reservoir 13, device for drying and filtering 14, choke valve 15, vapour liquid separator 16, copper pipe 17.
The outer formation cuboid of this dry equipment is cabinet type, outer heat-insulating wall 12 adopts the sandwich thermal insulation board, install in order to the circular rotating cylinder 5 of the porous of placing article at the middle part, both sides at circular rotating cylinder 5 are provided with return air chamber and plenum chamber respectively, respectively by return air chamber stainless steel porous plate 6, plenum chamber stainless steel porous barrier 7 (do return air with air-supply with) separates with it, variable air rate low noise blower fan 4 is housed at the return air chamber top, to variable air rate low noise blower fan 4 suction inlets, withdrawable screen pack is being set from return air chamber, order is provided with evaporimeter 2 and condenser 3 on the pipeline that is formed by heat-insulating wall 12 of variable air rate low noise blower fan 4 outlets, in evaporimeter 2 bottoms water-collecting tray and drainpipe 8 are set, space in the bottom of rotating cylinder 5 is provided with heat pump compressor 1, keep apart by heat-insulating wall 8 between two spaces, water leg and drainpipe 8 are set in the bottom of dry place, the backboard formula recooler 11 of heat pump refrigerating system is arranged on the back side, variable air rate low noise blower fan 4 adopts the direct connection transmission, rotating cylinder 5 adopts belt pulley transmission, two drive motors: circulating fan motor 9, tube rotaring motor 10 is installed in relevant position, the back side.
Produce the tea-leaf withering machine (tealeaves is dried to 8% living tea from the gross tea of 20% moisture content) of a drying capacity 30kg/h, select the heat pump compressor of a 3P for use, the high-pressure liquid tube of refrigeration system adopts copper pipe d9.52 x 0.8, the low pressure return tube adopts copper pipe d15.88 x 0.8, circulating fan is selected BDF3.5 for use, and its top gear air quantity is 3500m 3/ h, deep low gear air quantity are 2500m 3/ h, heat-insulating wall adopts the thick corrosion resistant plate therebetween of 0.8mm 50mm polyvinyl chloride warming plate, the air-supply plate of plenum chamber and return air chamber and return air plate adopt the big orifice plate of the thick stainless steel of 0.8mm, adopting rotating speed is the electronic rotating cylinder of 32r/min, blower fan outlet is adopted three windproof tube cloth is soft and connects, all fill up SD special (purpose) rubber shock absorber under compressor and the blower fan, refrigeration system is filled and is added R600a (iso-butane, C 4H 10), R600 (normal butane, C 4H 10), R236ea (HFC-236fa, C 3H 2F 6), R601 (pentane, C 5H 12), R245fa (pentafluoropropane, C 3H 3F 5), R601a1 (isopentane, C 5H 12), n-hexane (C 6H 14).

Claims (1)

1, a kind of variable air rate drum-type side is sent side return air moderate and high temperature heat drying machine, it is characterized in that: be made up of heat pump fluid closed circuit, inside air closed circuit, circular rotating cylinder (5); The heat pump fluid closed circuit comprises 3P heat pump compressor (1), evaporation coil, condenser coil, backboard formula recooler (11), reservoir (13), vapour liquid separator (16), electronic expansion valve and copper pipe (17), refrigeration working medium device for drying and filtering (14); The inside air closed circuit comprises: variable air rate low noise circulating fan (4), plenum chamber, return air chamber, withdrawable screen pack, heat-insulating wall (12); Install in order to the circular rotating cylinder (5) of the porous of placing article at the middle part of heat-insulating wall (12), both sides at rotating cylinder (5) are provided with return air chamber and plenum chamber respectively, respectively by return air chamber stainless steel porous plate (6), plenum chamber stainless steel porous barrier (7) separates with it, variable air rate low noise blower fan (4) is housed at the return air chamber top, from the return air chamber to the blower fan, between (4) suction inlet withdrawable screen pack is being set, order is provided with evaporimeter (2) and condenser (3) on the pipeline that is formed by heat-insulating wall (12) of blower fan (4) outlet, in evaporimeter (2) bottom water-collecting tray and drainpipe (8) are set, space in the bottom of rotating cylinder (5) is provided with heat pump compressor (1), keep apart by heat-insulating wall (12) between two spaces, water leg and drainpipe (8) are set in the bottom of dry place, the backboard formula recooler (11) of heat pump refrigerating system is arranged on the back side, two drive motors circulating fan motors (9), tube rotaring motor circulating fan motor (10) is installed in relevant position, the back side.
CNU2008200813153U 2008-06-05 2008-06-05 Wind quantity variable roller type side-supply side-return medium high temperature heat pump dryer Expired - Fee Related CN201215433Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200813153U CN201215433Y (en) 2008-06-05 2008-06-05 Wind quantity variable roller type side-supply side-return medium high temperature heat pump dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200813153U CN201215433Y (en) 2008-06-05 2008-06-05 Wind quantity variable roller type side-supply side-return medium high temperature heat pump dryer

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CN201215433Y true CN201215433Y (en) 2009-04-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212419A (en) * 2010-04-01 2011-10-12 宏芳香料(昆山)有限公司 Perfume drying device and essential oil recycling method
CN104154727A (en) * 2014-08-29 2014-11-19 梧州市中茗茶业有限公司 Tea drier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212419A (en) * 2010-04-01 2011-10-12 宏芳香料(昆山)有限公司 Perfume drying device and essential oil recycling method
CN104154727A (en) * 2014-08-29 2014-11-19 梧州市中茗茶业有限公司 Tea drier

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090401

Termination date: 20120605