CN109668384A - A kind of heat pump drying room - Google Patents
A kind of heat pump drying room Download PDFInfo
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- CN109668384A CN109668384A CN201810856334.7A CN201810856334A CN109668384A CN 109668384 A CN109668384 A CN 109668384A CN 201810856334 A CN201810856334 A CN 201810856334A CN 109668384 A CN109668384 A CN 109668384A
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- heat pump
- air
- drying
- air inlet
- pump drying
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- 238000001035 drying Methods 0.000 title claims abstract description 140
- 238000007791 dehumidification Methods 0.000 claims description 74
- 238000001816 cooling Methods 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 235000019628 coolness Nutrition 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000003570 air Substances 0.000 description 190
- 241000208125 Nicotiana Species 0.000 description 63
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 63
- 238000010438 heat treatment Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 15
- 239000003205 fragrance Substances 0.000 description 9
- 235000019504 cigarettes Nutrition 0.000 description 8
- 230000004907 flux Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000002706 hydrostatic effect Effects 0.000 description 7
- 239000003245 coal Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 238000000265 homogenisation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000035755 proliferation Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000035508 accumulation Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003303 reheating Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/02—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in buildings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/22—Tobacco leaves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of heat pump drying rooms, include drying house and at least a set of heat pump drying system between at least one；Heat pump drying system described in every set includes at least one set of heat pump unit, equipped with the centrifugal blower of 360 ° of outlet air at the condenser air outlet of the heat pump unit；For every baking room within doors equipped with a set of heat pump drying system, the centrifugal blower is arranged in the top or bottom of the middle position in the drying house；The high temperature dry air that the heat pump drying system generates is spread around from the top in the middle position for drying house or bottom；Alternatively, the drying house shares a set of heat pump drying system, the top or bottom of centrifugal blower middle position of the drying house party wall between being arranged in adjacent two between adjacent two；The high temperature dry air surrounding that the heat pump drying system generates, which is spread to the two drying houses, to be conveyed.
Description
Technical field
The present invention relates to dehumidification device design fields, and in particular to a kind of heat pump drying room.
Background technique
In the use fossil energies such as coal, diesel oil, natural gas hot-blast stove and biological particles hot-blast stove as tobacco leaf, agriculture
Product is dried the epoch of heat source, and heating room is usually separated with baking room (barn), and the outside of baking room is arranged in；Dry operation
When, moist tobacco leaf, graininess agricultural product in high temperature dry air the input baking room, with baking room of hot-blast stove production etc. are contained
After wet stock carries out hot and humid area, becomes warm moist air and be then exhausted from outside baking room；
Heating room is usually separated with baking room (barn), the outside of baking room is set, is to be conducive to give birth to safely first
Produce: thermal-flame, high temperature furnace pipe only heating heating indoor air outside baking room, not with tobacco leaf, agricultural product in baking room
Etc. inflammable articles occur directly to contact, prevent from lighting tobacco leaf, the agricultural product for drying the later period；Followed by facilitate production: heating room
External design is conducive to fireman to fuel such as burner hearth investment coal, biological particles or fuel up combustion gas, facilitates row
Grey deslagging；
But the baking room that hot-blast stove is external, it is pushed away on a large scale with Zhong Yan group (2009) No. 418 files of 2009 Nian Zhongyan
For " intensive flue-cured tobacco room " extensively runed, as shown in fig. 1, there are many problems.
1. drying is uneven
By taking tobacco leaf drying as an example, after entering drying room due to the dry air that the coal-fired hot-blast stove of left side heating room is sent out,
Airflow field is asymmetric uneven: close to the position of heating room, air-flow hydrostatic head is small, dynamic head is big, the position far from heating room,
Air-flow hydrostatic head is big, dynamic head is small, causes the airflow field for passing through tobacco leaf uneven, and tobacco leaf drying speed is uneven；
2. it is big to leak heat loss
Since heating outdoor is set, heating device is in high-temperature region, and the radiation and convection current leakage heat to environment are serious, the heating
Device connect air duct with baking room and leaks heat seriously to radiation, the convection current of environment, and leakage heat loss is big.
3. the long resistance of dry gas stream streamline is big
Due to heating outdoor set, be heated warmed up after hot and humid area in fresh air and tobacco flue-curing house wet outlet air streamline it is long, flowing resistance
Power is big, and blower power consumption is caused to increase；
4. fragrance material loss is big
Due to using outer hydrofuge, constantly there is fresh air to fill into, constantly have containing water vapour and be loaded with tobacco leaf fragrance material
Warm moist air discharge causes the loss of baking process fragrance material more, Flue-cured tobacco Quality decline.
Summary of the invention
The technical issues of for proposing in background technique, it to include at least one that the present invention provides a kind of heat pump drying rooms
Between dry house and at least a set of heat pump drying system；Heat pump drying system described in every set includes at least one set of heat pump unit,
Equipped with the centrifugal blower of 360 ° of outlet air at the condenser air outlet of heat pump unit described in every group；
Within doors equipped with a set of heat pump drying system, the centrifugal blower is arranged in described every baking room
Dry the middle position in house；Centre of the high temperature dry air that the heat pump drying system generates from the drying house
It spreads around；
Alternatively, the adjacent two drying house shares a set of heat pump drying system, the centrifugal blower is arranged in phase
The middle position of the drying house party wall of neighbour two；The high temperature dry air surrounding that the heat pump drying system generates
Diffusion is conveyed to the two drying houses respectively.
Preferably, the heat pump unit is arranged vertically at the baking room within doors, the upper and lower end point of the heat pump unit
Not Wei Yu baking room side central location within doors top and bottom；
Set heat pump unit upper end is provided with air outlet, and lower end is provided with air inlet, and the centrifugal blower is arranged upper
At the air outlet for holding condenser；
Alternatively, set heat pump unit lower end is provided with air outlet, upper end is provided with air inlet, and the centrifugal blower is set
It sets at the air outlet of lower end condenser.
Preferably, every baking room is provided with a set of heat pump drying system within doors, heat pump described in every set dries
Dry systems include heat pump unit described in two groups, and heat pump unit described in two groups is disposed side by side on the centre in the drying house.
Preferably, the heat pump drying unit includes shell, upper and lower side is provided on the shell and is provided with outlet air
Mouth, air inlet, the centrifugal blower is arranged in the hull outside, and is located at the air outlet；
At least two sets of dehumidification systems are provided in the shell, the dehumidification system includes compressor, condenser, section
Device, evaporator are flowed, the compressor, condenser, throttling set, evaporator, which are linked in sequence, constitutes one for refrigerant circulation
Closed circuit circulatory system；Each evaporator side, which is arranged side by side, a cross-flow heat exchanger, the air inlet and the outlet of the evaporator
Pass through the zone of heat liberation and cold fluid pass of the cross-flow heat exchanger, evaporator, cross-flow heat exchanger respectively by connecting air duct
The efficient dehumidification module of air inlet pre-cooling is constituted with air duct is connect；
The efficient vertical sequence arranged of dehumidification module is pre-chilled in the shell in multiple air inlets, it is multiple it is described into
The condenser that efficient dehumidification module is pre-chilled in wind is arranged side by side at the air outlet of the case top；In the centrifugal blower
Under effect, air inlet is divided into multiple parallel ventilation branch, flow separately through pass through after the efficient dehumidification module of each air inlet pre-cooling it is all
The condenser, finally from the air outlet be discharged.
Preferably, side is provided with an air intake passage being vertically arranged in the shell, the air inlet is arranged described
The bottom of air intake passage, the air intake surface that efficient dehumidification module is pre-chilled in each air inlet are connected to the air intake passage；The air inlet
Channel is in low wide and up narrow wedgy passage.
Preferably, the other side is provided with an air-out passage being vertically arranged in the shell, each air inlet pre-cooling is efficient
The outlet air surface of dehumidification module is connected to the air-out passage；The air-out passage wedgy passage with a narrow upper and lower width.
Preferably, being additionally provided with small blower close to air outlet in the shell.
Preferably, the heat pump drying unit further includes external heat exchanger, the external heat exchanger is arranged in the drying
The outside in house；The external heat exchanger is connected to the compressor of dehumidification system by refrigerant line and valve and throttling fills
Between setting.
Preferably, the air inlet, which is pre-chilled below efficient dehumidification module, is provided with drip tray.
Preferably, the evaporator-condenser uses finned tube exchanger.
The present invention due to using the technology described above, is allowed to compared with prior art, have the following advantages that and actively imitate
Fruit:
1, drying is uniform
The present invention uses 360 ° of levels by centrifugal blower in baking room in the bellows chamber of the top/bottom of central location
Air-out mode, outlet air section are the concentric circles band of column, and outlet air section is big, and outlet air area of section is with the increase of air-flow radius
And quickly increase, air-flow is on one side along ray distally horizontal proliferation outward, and tobacco leaf etc. is permeated containing wet stock downwards on one side,
Horizontal proliferation air-flow quick deceleration, dynamic head are converted into hydrostatic head；Return air section in bottom (or top) bellows chamber is also concentric
Cylinder ring, return air section is big, and return air area of section with the diminution of air-flow radius rapid drop, from tobacco leaf etc. containing wet
The air-flow being discharged in material merges with horizontal direction to the air-flow that heat pump unit bottom air inlet is collected, and flow velocity quicklys increase, quiet
Pressure head is converted into dynamic head；In 360 ° of horizontal outlet air of centrifugal blower and bottom (top) bellows chamber in top (or bottom) bellows chamber
360 ° of horizontal return air combination so that passing through the airflow field homogenization containing wet stock such as tobacco leaf, drying rate containing wet stock is equal
It homogenizes；
2, leakage heat loss is small
Since heat pump drying system is arranged in baking room center of inside position, heat of the heat pump drying system to ambient enviroment
Radiation, convection current leakage heat etc., all accumulations inside baking room, the heating device not to the radiation of baking room external environment and
Convection current leakage heat, leakage heat loss are greatly reduced；
3. dry gas stream streamline is short, resistance is small
Since the outlet air of heat pump drying system is arranged in baking room center of inside position, the drying heated by condenser group
Air-flow enters bellows chamber on baking room → and tobacco leaf etc. carries out hot and humid area containing wet stock → and warms up wet outlet air and flow back under baking room
Bellows chamber → entrance air inlet is pre-chilled efficient dehumidification module and cools down, dehumidifies, preheats → enters back into condenser reheating, entire airflow circulating
Streamline it is short, flow area is big, and flow resistance is small, so that blower power consumption is greatly reduced；
4. baking properties is high, important material composition reservation is complete
By taking the present invention is used in tobacco leaf drying field as an example, due to implementing " heat pump is double dynamical " baking, pay attention to enhancing
Drying " outer power " factor that relative humidity is reduced in barn, reduces drying gas flow temperature, and flue-cured tobacco effective component is decomposed, dropped
Solution, conversion, modified ratio reduce, and Flue-cured tobacco Quality is promoted；Due to implementing to dehumidify in heat pump unit evaporator, no longer using outer
Hydrofuge, heat pump barn do not have fresh air fill into and containing water vapour and be loaded with tobacco leaf fragrance material warm moist air discharge, baking
Process fragrance material does not lose, and flue-cured tobacco dry matter pick-up rate increases.
Detailed description of the invention
In conjunction with attached drawing, by detailed description below, it can be more clearly understood that above-mentioned and other feature of the invention and excellent
Point, in which:
Fig. 1 is the structural schematic diagram of baking room in the prior art；
Fig. 2 is the structural schematic diagram of baking room in embodiment 1；
Fig. 3 is baking room top bellows chamber flux map in embodiment 1；
Fig. 4 is baking room bottom bellows chamber flux map in embodiment 1；
Fig. 5 is that the structure of heat pump unit in embodiment 1 is structural schematic diagram；
Fig. 6 is the structural schematic diagram of baking room in embodiment 2；
Fig. 7 is baking room top bellows chamber flux map in embodiment 2；
Fig. 8 is baking room bottom bellows chamber flux map in embodiment 2；
Fig. 9 is that the structure of heat pump unit in embodiment 2 is structural schematic diagram；
Figure 10 is baking room top bellows chamber flux map in embodiment 3；
Figure 11 is baking room bottom bellows chamber flux map in embodiment 3；
Figure 12 is the structural schematic diagram of baking room in embodiment 4；
Figure 13 is baking room top bellows chamber flux map in embodiment 4；
Figure 14 is baking room bottom bellows chamber flux map in embodiment 4；
Figure 15 is the structural schematic diagram of baking room in embodiment 5.
Specific embodiment
Referring to the attached drawing for showing the embodiment of the present invention, the present invention is described in more detail.However, the present invention can be with
It realizes in many different forms, and should not be construed as being limited by the embodiment herein proposed.On the contrary, proposing these implementations
Example is and those skilled in the art to be made to understand the scope of the present invention completely to reach sufficiently and complete disclosure.This
In a little attached drawings, for clarity, the size and relative size in layer and region may be exaggerated.
The present invention provides a kind of heat pump drying rooms, include drying house and at least a set of heat pump drying between at least one
System；Every set heat pump drying system includes at least one set of heat pump unit, equipped with one at the air outlet of every group of heat pump unit
The centrifugal blower of 360 ° of outlet air；For every baking room within doors equipped with a set of heat pump drying system, centrifugal blower is arranged in baking room
The middle position in room；It spreads around the centre in the high temperature dry air that heat pump drying system generates from drying house；Or
Person, adjacent two drying house share a set of heat pump drying system, and centrifugal blower is arranged in adjacent two drying house party wall
Middle position；The high temperature dry air surrounding diffusion that heat pump drying system generates is conveyed to two drying houses respectively.
Wherein, drying house and the setting quantity of heat pump drying system can be selected as the case may be, every set heat pump
The group number of heat pump unit included by drying system can also be selected as the case may be, herein with no restrictions.
Heat pump drying room provided by the invention can be used for baking tobacco leaves, fructus lycii etc. containing wet stock, herein with no restrictions.
Baking room provided by the invention has the advantages that
1, drying is uniform
The present invention uses 360 ° of horizontal outlet air by centrifugal blower in baking room in central location top/bottom bellows chamber
Mode, outlet air section are the concentric circles band of column, and outlet air section is big, and outlet air area of section is fast with the increase of air-flow radius
Speed increases, and air-flow is on one side along ray distally horizontal proliferation outward, and tobacco leaf etc. is permeated containing wet stock downwards on one side, horizontal
Diffusive gas flow quick deceleration, dynamic head are converted into hydrostatic head；Return air section in bottom/top bellows chamber is also the concentric circles band of column,
Return air section is big, and return air area of section with the diminution of air-flow radius rapid drop, from tobacco leaf etc. containing arranging in wet stock
Air-flow out merges with horizontal direction to the air-flow that heat pump unit bottom air inlet is collected, and flow velocity quicklys increase, hydrostatic head conversion
For dynamic head；360 ° of horizontal outlet air of centrifugal blower in top/bottom bellows chamber and 360 ° of levels in bottom/top bellows chamber are returned
The combination of wind, so that passing through the airflow field homogenization containing wet stock, the homogenization of drying rate containing wet stock；
2, leakage heat loss is small
Since heat pump drying system is arranged in baking room center of inside position, heat of the heat pump drying system to ambient enviroment
Radiation, convection current leakage heat etc., all accumulations inside baking room, the heating device not to the radiation of baking room external environment and
Convection current leakage heat, leakage heat loss are greatly reduced；
3. dry gas stream streamline is short, resistance is small
Since the outlet air of heat pump drying system is arranged in baking room center of inside position, the drying heated by condenser group
Air enters bellows chamber on baking room → carrying out hot and humid area with containing wet stock → warm up wet outlet air flow back into bellows chamber under baking room →
Cool down into the efficient dehumidification module of air inlet pre-cooling, dehumidify, preheat → enter back into condenser reheating, the streamline of entire airflow circulating
Short, flow area is big, and flow resistance is small, so that blower power consumption is greatly reduced；
4. baking properties is high, important material composition reservation is complete
By taking the present invention is used in tobacco leaf drying as an example, due to implementing " heat pump is double dynamical " baking, attention enhances barn
Drying " outer power " factor of the water vapor diffusions of surface containing wet stock such as the interior promotion tobacco leaf for reducing relative humidity, so as to
Drying gas flow temperature is reduced, flue-cured tobacco effective component is decomposed, degradation, converted, modified ratio reduces, and Flue-cured tobacco Quality is promoted；
Due to implementing to dehumidify in heat pump unit evaporator, outer hydrofuge is no longer used, heat pump barn does not have fresh air to fill into and contain
There is water vapour and be loaded with the warm moist air discharge of tobacco leaf fragrance material, baking process fragrance material does not lose, flue-cured tobacco dry
Matter pick-up rate increases.
Specific embodiment is further described below:
Embodiment 1
Referring to 2-5, in the present embodiment, heat pump drying room includes a drying house a, and the drying house a is one horizontal
The square drying house in section.Certainly, in other embodiments dry house cross section can also be rectangle or its
His polygon, herein with no restrictions.
In the present embodiment, as shown in figures 3-4, it dries and is provided with a heat pump drying system at the center of house a,
Heat pump drying system includes one group of heat pump unit b and the centrifugal blower c that is arranged at heat pump unit b top outlet inlet.
It in the present embodiment, include a shell 1 in the present embodiment heat pump unit, shell 1 is a vertical square referring to Fig. 5
Shape shell.It include two sets of dehumidification systems, respectively the first dehumidification system and the second dehumidification system in shell 1；First dehumidifying system
System includes compressor 4a, evaporator 5a, throttling set 7a, the condenser 3a of sequential connection, and the second dehumidification system includes suitable
Compressor 4b, the evaporator 5b, throttling set 7b, condenser 3b of sequence connection；Wherein, on the right side air intake surface of evaporator 5a simultaneously
It arranges and is provided with the efficient dehumidification module of cross-flow heat exchanger 6a formation the first air inlet pre-cooling, on the right side air intake surface of evaporator 5b side by side
It is provided with cross-flow heat exchanger 6b and forms the second efficient dehumidification module of air inlet pre-cooling.
In the present embodiment, efficient dehumidification module is pre-chilled in the first air inlet, the second air inlet is pre-chilled efficient dehumidification module and vertically arranges
In column arrangement shell 1；Condenser 3a, condenser 3b are horizontally placed on the top that efficient dehumidification module is pre-chilled in the second air inlet side by side.Air inlet
Be divided into two-way air inlet in parallel, all the way air inlet flow through the first air inlet be pre-chilled efficient dehumidification module flow to after cool-down dehumidification it is cold
Condenser 3a, condenser 3b, another way air inlet flow through after efficient dehumidification module progress cool-down dehumidification is pre-chilled in the second air inlet and flow to condensation
Device 3a, condenser 3b, two-way, which becomes high temperature using the heating of condenser 3a, condenser 3b by the air after cool-down dehumidification, to be done
Dry air is discharged under the action of centrifugal blower c from the air outlet of case top.
In the present embodiment, efficient dehumidification module is pre-chilled in the first air inlet, the lower section of efficient dehumidification module is pre-chilled in the second air inlet
It is provided with drip tray.
In the present embodiment, condenser 3a, condenser 3b specifically use finned tube exchanger；Condenser 3a, condenser 3b
It can be made into integration, can also be two independent finned tube exchangers, as long as guaranteeing that it is internal independent for refrigerant circulation with two
Channel.
In the present embodiment, cross-flow heat exchanger 6a, cross-flow heat exchanger 6b, using board-like cross-flow heat exchanger.
Certainly, the specific constructive form of heat pump unit is not limited to the above in the present embodiment, can be according to specific
Situation is adjusted, herein with no restrictions
Embodiment 2
A set of heat pump system, every set heat pump system are disposed in each baking room a in the present embodiment referring to Fig. 6-9
It include two groups of heat pump units, respectively heat pump unit b1 and heat pump unit b2；Heat pump unit b1 and heat pump unit b2 are erected side by side
The central position of straight setting baking room a.
In the present embodiment, heat pump unit b1 and heat pump unit b2 fever upper end is provided with air outlet, and lower end is respectively provided with
There is air inlet, centrifugal blower c1 is provided at the air outlet of the upper end heat pump unit b1, is set at the air outlet of the upper end heat pump unit b2
It is equipped with centrifugal blower c2；The high temperature drying medium that heat pump unit b1, heat pump unit b2 are generated is in centrifugal blower c1, centrifugal blower
C2 is spread around, a top bellows chamber is formed in baking room a inside top, after then high temperature drying medium is passed down through tobacco leaf
From the bottom return air of heat pump unit b1 and heat pump unit b2, bottom bellows chamber is formed in the bottom of baking room a.
The baking room is used for flue-cured tobacco in the present embodiment, and tobacco leaf is suspended in baking room a, therefore heat pump unit b1 and heat pump
Unit b2 is arranged at top, in order to flow through tobacco leaf from top to bottom；Certainly, in other embodiments, heat pump unit b1 and heat
The air outlet of pump assembly b2 may also be arranged on bottom, and air inlet is arranged at top, herein with no restrictions.
In the present embodiment, heat pump unit b1 is identical with heat pump unit b2 structure, makees by taking heat pump unit b1 as an example further
Explanation.
Specifically, heat pump unit includes a shell 1 referring to Fig. 9, shell 1 is a vertical rectangular housing.It is set in shell 1
It is equipped with three sets of dehumidification systems, respectively the first dehumidification system, the second dehumidification system, third dehumidification system；First dehumidification system packet
Compressor 4a, evaporator 5a, throttling set 7a, the condenser 3a of sequential connection are included, the second dehumidification system includes that sequence connects
Compressor 4b, evaporator 5b, throttling set 7b, the condenser 3b connect, third dehumidification system include the compressor of sequential connection
4c, evaporator 5c, throttling set 7c, condenser 3c；Wherein, being arranged side by side on the right side air intake surface of evaporator 5a has cross-flow to change
Hot device 6a forms the first air inlet and efficient dehumidification module is pre-chilled, and being arranged side by side on the right side air intake surface of evaporator 5b has cross-flow heat exchange
Device 6b forms the second air inlet and efficient dehumidification module is pre-chilled, and being arranged side by side on the right side air intake surface of evaporator 5c has cross-flow heat exchanger
6c forms third air inlet and efficient dehumidification module is pre-chilled.
In the present embodiment, efficient dehumidification module is pre-chilled in the first air inlet, efficient dehumidification module, third is pre-chilled in the second air inlet
Air inlet is pre-chilled in efficient dehumidification module vertical array arrangement shell 1；Condenser 3a, condenser 3b, condenser 3c are horizontally placed on side by side
The top of efficient dehumidification module is pre-chilled in third air inlet.Air inlet is divided into three Lu Jinfeng in parallel, and it is pre- to flow through the first air inlet for air inlet all the way
Cold efficient dehumidification module flows to condenser 3a, condenser 3b, condenser 3c after carrying out cool-down dehumidification, and air inlet flows through second all the way
Air inlet is pre-chilled after efficient dehumidification module carries out cool-down dehumidification and flows to condenser 3a, condenser 3b, condenser 3c, all the way air intake
It is pre-chilled after efficient dehumidification module carries out cool-down dehumidification through third air inlet and flows to condenser 3a, condenser 3b, condenser 3c；Three tunnels
High temperature dry air is become using the heating of condenser 3a, condenser 3b, condenser 3c by the air after cool-down dehumidification,
Under the action of centrifugal blower c1 from the air outlet of case top be discharged, while centrifugal blower c1 effect under 360 ° expand around
It dissipates.
In the present embodiment, small blower 2 is additionally provided at air outlet in shell 1；Due to opening for three sets of dehumidification systems
Dynamic there are certain asynchronisms, uneven so as to cause the humidity for coming out air from condenser 3a, condenser 3b, condenser 3c
Even, the present embodiment is by the setting of small blower 2 so that the dry air of air outlet out is more uniform, to be further ensured that
It is uniformly dried containing wet stock.
Heat pump drying unit further includes external evaporator 8 in the present embodiment, and the external setting of evaporator 8 is in drying house a
Outside, and 8 side of external evaporator is provided with blower 9, to push outside air to pass through external evaporator 8；External evaporator
8 are connected between the condenser 3a of dehumidification system and compressor 4a by refrigerant line series connection and valve.Due to heat pump unit
Just start starting when baking room in temperature it is lower, the present embodiment by external evaporator 8 be arranged in initial launch when
It waits, starts the external absorption outside ambient air heat of evaporator 8 and the temperature in baking room is promoted.
In the present embodiment, efficient dehumidification module is pre-chilled in the first air inlet, efficient dehumidification module, third is pre-chilled in the second air inlet
Air inlet is pre-chilled below efficient dehumidification module and is provided with drip tray；Humid air stream through the first air inlet be pre-chilled efficient dehumidification module,
Efficient dehumidification module is pre-chilled in second air inlet, third air inlet is pre-chilled efficient dehumidification module and moisture is precipitated by cooling, is flowed into drip tray
Inside it is collected discharge.
In the present embodiment, condenser 3a, condenser 3b, condenser 3c specifically use finned tube exchanger；Condenser
3a, condenser 3b can be made into integration, and can also be two independent finned tube exchangers, as long as guaranteeing that it is internal independent with three
For the channel of refrigerant circulation.
In the present embodiment, cross-flow heat exchanger 6a, cross-flow heat exchanger 6b, cross-flow heat exchanger 6 are exchanged heat using board-like cross-flow
Device.
In the present embodiment, side is provided with an air intake passage being vertically arranged in shell 1, and air inlet setting is being entered the wind
The bottom in channel, the air intake surface that efficient dehumidification module is pre-chilled in each air inlet are connected to air intake passage；Air intake passage is in low wide and up narrow
Wedgy passage.The present embodiment by the restriction to air intake passage shape, during air-flow is along air intake passage uplink on one side to
Left side air distribution narrows upwards on one side, and the draught area of each flow area matches with the section actual air volume in air duct, air quantity
Draught area is big when big, and air quantity hour draught area is small, to ensure that the air inlet speed of efficient dehumidification module is pre-chilled in three air inlets
Degree is the same.
In the present embodiment, the other side is provided with an air-out passage being vertically arranged in shell 1, and each air inlet pre-cooling is efficient
The outlet air surface of dehumidification module is connected to air-out passage；Air-out passage wedgy passage with a narrow upper and lower width.The present embodiment passes through to out
The restriction of wind channel shape is upwardsed while carrying out wind on the right side of receive during air-flow uplink and is widened, each air-flow in air duct
The draught area in section matches with the section actual air volume, and air quantity hour draught area is small, and draught area is big when air quantity is big,
Wind velocity out to ensure that three efficient dehumidification modules of air inlet pre-cooling is the same.
The vertical heat pump unit that efficiently dehumidifies is pre-chilled in wind path parallel connection air inlet provided in this embodiment, is pre-chilled using multiple air inlets
Efficient dehumidification module vertically be superimposed, wind path parallel technology, develop dehumidifier vertically, increases height, with as follows it is beneficial it
Place:
The present invention not only remained the characteristics of " air inlet pre-cooling efficiently dehumidifying ", but also overcame the air inlet addressed in background technique
Be pre-chilled high-efficiency dehumidifier " structure is complicated, bulky, occupied area is bigger than normal, unit volume moisture removal is low, unit moisture removal
Equipment cost it is high " etc. the deficiencies of；Complete machine occupied area of the present invention is smaller, and complete machine unit occupied area moisture removal is big；The present invention
A kind of wind path and joint type dehumidifier, improve the dehumidifying effect of dehumidifier unit occupied area, improve space utilization system
Number；While also reducing the centrifugal blower on single machine, sheet metal component, controller etc. components, the equipment cost of unit moisture removal
It reduces；
Embodiment 3
Large-scale baking room between drying house synthesis one between two in the present embodiment.
Specifically, as shown in 9-10, together with drying house a1 and drying house a2 are arranged side by side, and shared one every
Wall d；Adjacent two drying house shares a heat pump drying system in the present embodiment, and heat pump drying system includes one group of heat
The pump assembly b and centrifugal blower c being arranged at heat pump unit b top outlet inlet.
In the present embodiment, heat pump unit b is arranged in drying house a1 and dries the interposition of the division wall d of house a2
Place is set, the high temperature dry air surrounding diffusion that heat pump drying system generates is conveyed to two drying houses respectively, as shown in Figure 3.
For nearly ten years, the whole nation of comprehensive (2009) No. 418 files " bulk curing barn technical specification " construction being done according to domestic cigarettes
Nearly 1,200,000 intensive flue-cured tobacco rooms have multiple rows of barn due to being mostly to build in flakes in the cluster of a dense tobacco flue-curing house, each
Arrange disjunctor barn again mostly between 5 more than, the inside dimension of every barn is high 4300 wide 2700 deep 8000, and fire coal is separately configured
Hot-blast stove is as baking heat source；
It, can be by 2 barns adjacent among row's disjunctor barn at combination under the environmental protection policy of " scattered coal clearing "
And merge the large-scale barn for becoming the horizontal cross-section of high 4300 wide 5700 depths 8000 close to square；
300 thickness partition walls between adjacent 2 barns in intensive disjunctor barn are transformed into double dynamical heat by the present invention
Pump assembly is made into 360 ° of 360 ° of outlet air of bellows chamber draught fan impeller, air-flow sinking, bottom bellows chamber uniform return air formulas heat at the top of barn
Pump double dynamical drying tobacco flue-curing house.
In the present embodiment, the structure type of heat pump unit specifically can refer to heat pump unit in embodiment 1 or embodiment 2
Structure type, details are not described herein again.
Embodiment 4
2-14 referring to Fig.1, the present embodiment are the adjustment carried out on the basis of embodiment 1.
It, can be by 2 barns adjacent among row's disjunctor barn at combination under the environmental protection policy of " scattered coal clearing "
And merge the large-scale barn for becoming the horizontal cross-section of high 4300 wide 5700 depths 8000 close to square；By adjacent 2 barns
300 intermediate thickness partition walls are transformed into double dynamical heat pump unit, are made at the top of large-scale barn 360 ° of bellows chamber draught fan impeller uniformly
The double dynamical drying tobacco flue-curing house of outlet air air-flow sunk type heat pump.
But in practical cured tobacco production, there are following problems:
If be of uniform thickness 1. heat pump unit thickness is required to be made into intensive flue-cured tobacco room midfeather, evaporator
Length of straight pipe be less than 300, while again keep evaporator total heat exchange area, this will make the straight tube quantity mistake of evaporator
More, connecting bend is excessive, and welding workload is excessive, causes the manufacturing cost of evaporator excessively high；
2. becoming high 4300 wide 5700 deep 8000 horizontal cross-sections close to square due to merging 2 barns in groups
Large-scale barn, fresh tobacco leaves charge weight is up to 8 tons, and required baking air quantity reaches 30000m3/ h, the centrifugation wind of such air quantity
The impeller thickness of machine is up to the thickness of bellows chamber on even more than tobacco flue-curing house, it is difficult to install；
3. it, be by compiling cigarette process in the fresh tobacco leaves of crop field harvesting, i.e., fresh tobacco leaves layout is banded in length is
On the tobacco rod of 1350mm, then it is linked into tobacco flue-curing house, if heat pump unit body thickness is beyond thickness of wall body and in two tobacco flue-curing houses
Centre is centrally located, then short tobacco rod of a part of length less than 1350mm will occurs in tobacco flue-curing house, this, which will increase, compiles what cigarette produced
Difficulty.
In order in the whole nation nearly 1,200,000 for doing comprehensive (2009) No. 418 files " bulk curing barn technical specification " construction according to domestic cigarettes
It solves the above problems on the basis of seat intensive flue-cured tobacco room, the present invention uses " eccentric intensive flue-cured tobacco room one drag two heat pump drying
Unit " scheme:
In the present embodiment, large-scale baking room between drying house synthesis one between two；Dry house a1 and drying house a2 simultaneously
Row is set together, and shares a partition wall d；Adjacent two drying house shares a heat pump drying system, heat in the present embodiment
Pump drying system includes two groups of heat pump units, heat pump unit b1 and group heat pump unit b2, at heat pump unit b1 top outlet inlet
Centrifugal blower c1, the centrifugal blower c2 at heat pump unit b2 top outlet inlet.
In the present embodiment, two heat pump unit b1 and the main part of the heat pump unit b2 baking room between one thereto is organized
Offset setting within doors, but the middle position of partition wall d is arranged in centrifugal blower c1 and centrifugal blower c2；By centrifugal blower c1
High temperature dry air surrounding diffusion with centrifugal blower c2 output is conveyed to two drying houses respectively, as shown in figs. 13-14.
The present invention is close between keeping the top hot air outlet of heat pump drying unit and bottom return air air inlet to be still in two
The midfeather position of collection type barn, and the heat pump unit ontology between inlet and outlet, then it is inclined to a certain of two barns
It moves, occupies the width of a tobacco tying rod (1350mm)；Along tobacco flue-curing house longitudinal direction, be symmetrical arranged 2 sets of heat pump units, with into
One step improves the uniformity of tobacco flue-curing house air-flow in the long side direction, and solves single outer-rotor centrifugal fan impeller thickness and reach
Bellows chamber height is difficult to operate normally problem on to even more than tobacco flue-curing house.
Outer turn of baking room due to the present invention for 360 ° of uniform outlet air heat pump systems of one kind and using the heat pump system
The pump drainage function of sub- centrifugal blower, 360 ° of horizontal outlet air in the bellows chamber of top and 360 ° of horizontal return air sides in the bellows chamber of bottom
The eccentric setting of formula and heat pump unit ontology brings excellent drying effect:
1. drying is uniform
Since the outer-rotor centrifugal fan of condenser group uses 360 ° of horizontal air-out modes in the bellows chamber of top, outlet air is cut
Face be the concentric circles band of column, outlet air section is big, and outlet air section is quicklyd increase with the increase of air-flow radius, air-flow along
Ray is outside, distallys horizontal proliferation while containing wet stock infiltration downwards, horizontal proliferation air-flow quick deceleration, dynamic pressure
Head is converted into hydrostatic head；Return air section in the bellows chamber of bottom is also the concentric circles band of column, and return air section is big, and return air section with
Air-flow radius diminution and rapid drop, from tobacco leaf etc. containing the air-flow and horizontal direction being discharged in wet stock to heat pump unit
The air-flow that bottom air inlet is collected merges, and flow velocity quicklys increase, and hydrostatic head is converted into dynamic head；Blower leaf in the bellows chamber of top
The combination of 360 ° of horizontal outlet air and 360 ° of horizontal return air in the bellows chamber of bottom is taken turns, so that passing through the airflow field homogenization of tobacco leaf, cigarette
Leaf drying rate homogenization；
2. leaking, heat loss is small, and dry gas stream streamline is short, resistance is small
Since the setting of heat pump drying unit is in baking room center of inside position, heat pump unit to the heat radiation of ambient enviroment,
Heat etc. is leaked in convection current, and all accumulations are inside baking room, the heating device not radiation to baking room external environment and convection current leakage
Heat, leakage heat loss are greatly reduced；
Since the setting of heat pump drying unit is in baking room center of inside position, the dry air heated by condenser group into
Enter bellows chamber on baking room → carrying out hot and humid area containing wet stock with tobacco leaf etc. → warm up wet outlet air flow back into bellows chamber under baking room →
Cool down into the efficient dehumidification module of air inlet pre-cooling, dehumidify, preheat → enter back into condenser reheating, the streamline of entire airflow circulating
Short, flow area is big, and flow resistance is small, so that blower power consumption is greatly reduced.
3. convenient for compiling cigarette production
After the eccentric setting of 360 ° of uniform outlet air heat pump drying unit ontologies of one kind of the invention, make in two tobacco flue-curing houses
1350mm tobacco rods that are all to hang cigarette position, all standing good original thus produce convenient for compiling cigarette；
4. baking properties is high, important material composition reservation is complete
By taking the closed circuit baking of tobacco leaf heat pump as an example, since the drying for paying attention to enhancing reduction relative humidity in barn is " outer dynamic
Power " factor reduces drying gas flow temperature, and flue-cured tobacco effective component is decomposed, degradation, converted, modified ratio reduces, flue-cured tobacco product
Matter is promoted；Due to implementing to dehumidify in heat pump unit evaporator, outer hydrofuge is no longer used, heat pump barn does not have fresh air to fill into and contain
There is water vapour and be loaded with the warm moist air discharge of tobacco leaf fragrance material, baking process fragrance material does not lose, flue-cured tobacco dry
Matter pick-up rate increases.
Embodiment 5
Referring to Fig.1 5, the present embodiment is the adjustment carried out on the basis of examples 1 to 4.
In the present embodiment, the setting number of heat pump unit and specific structure are not limited to shown in Figure 15, herein
Deficiency limitation, specifically can refer to and describes in embodiment 1-4.
In the present embodiment, which is used in the material of the needs tiling drying such as drying fructus lycii, needs high temperature drying
Air passes through material from bottom to top, therefore the bottom in drying house, centrifugation is arranged in the air outlet of heat pump unit in the present embodiment
Blower is arranged at the air outlet of bottom, and the air inlet of heat pump unit is arranged at top.
Those skilled in the art should be understood that the present invention can be implemented without departing from many other concrete forms
The spirit or scope of itself.Although case study on implementation of the invention has been described, it should be understood that the present invention should not be limited to these realities
Example is applied, those skilled in the art can make within the spirit and scope of the present invention as defined by the following claims
Change and modification.
Claims (10)
1. a kind of heat pump drying room, which is characterized in that include drying house and at least a set of heat pump drying system between at least one；
Heat pump drying system described in every set includes at least one set of heat pump unit, at the condenser air outlet of the heat pump unit equipped with
The centrifugal blower of one 360 ° of outlet air；
For every baking room within doors equipped with a set of heat pump drying system, the centrifugal blower is arranged in the baking room
The middle position in room；The centre in the high temperature dry air that the heat pump drying system generates from the drying house is expanded around
It dissipates；
Alternatively, the drying house shares a set of heat pump drying system between adjacent two, the centrifugal blower is arranged in adjacent
The middle position of the drying house party wall between two；The high temperature dry air surrounding that the heat pump drying system generates expands
It dissipates and is conveyed respectively to the drying house between two.
2. heat pump drying room according to claim 1, which is characterized in that the heat pump unit is arranged vertically at the drying
In house, the upper and lower end of the heat pump unit is located at the top and bottom of baking room side central location within doors；
The heat pump unit upper end is provided with air outlet, and lower end is provided with air inlet, and the institute of upper end is arranged in the centrifugal blower
It states at air outlet；
Alternatively, the heat pump unit lower end is provided with air outlet, upper end is provided with air inlet, and the centrifugal blower is arranged in lower end
The air outlet at.
3. heat pump drying room according to claim 1 or 2, which is characterized in that every baking room is provided within doors
A set of heat pump drying system, heat pump drying system described in every set includes heat pump unit described in two groups, heat pump described in two groups
The centre of unit and be set in the drying house.
4. heat pump drying room according to claim 1 or 2, which is characterized in that the heat pump drying unit includes shell,
It is provided with upper and lower side on the shell and is provided with air outlet, air inlet, the centrifugal blower is arranged in the hull outside, and position
At the air outlet；
At least two sets of dehumidification systems are provided in the shell, the dehumidification system includes compressor, condenser, throttling dress
It sets, evaporator, the compressor, condenser, throttling set, evaporator sequential connection constitute one and follow for the closed circuit of refrigerant circulation
Loop system；Each evaporator side, which is arranged side by side, a cross-flow heat exchanger, and the air inlet and the outlet of the evaporator pass through company
It gives a dinner for a visitor from afar and passes through the zone of heat liberation and cold fluid pass of the cross-flow heat exchanger respectively, evaporator, cross-flow heat exchanger and connect
Air duct constitutes air inlet and efficient dehumidification module is pre-chilled；
The efficient vertical sequence arranged of dehumidification module is pre-chilled in the shell in multiple air inlets, multiple air inlet pre-coolings
The condenser of efficient dehumidification module is arranged side by side at the air outlet of the case top；Under the action of the centrifugal blower,
Air inlet is divided into multiple parallel ventilation branch, flow separately through each air inlet be pre-chilled pass through after efficient dehumidification module it is all described cold
Condenser is finally discharged from the air outlet.
5. heat pump drying room according to claim 4, which is characterized in that side is provided with one and is vertically arranged in the shell
Air intake passage, the air inlet is arranged in the bottom of the air intake passage, each air inlet be pre-chilled efficient dehumidification module into
Wind face is connected to the air intake passage；The air intake passage is in low wide and up narrow wedgy passage.
6. heat pump drying room according to claim 5, which is characterized in that the other side is provided with a vertical cloth in the shell
The air-out passage set, the outlet air surface that efficient dehumidification module is pre-chilled in each air inlet are connected to the air-out passage；The outlet air is logical
Road wedgy passage with a narrow upper and lower width.
7. heat pump drying room according to claim 4, which is characterized in that close air outlet is additionally provided with small in the shell
Blower.
8. heat pump drying room according to claim 4, which is characterized in that the heat pump drying unit further includes external heat exchange
The outside in the drying house is arranged in device, the external heat exchanger；The external heat exchanger passes through refrigerant line and valve body
It is connected between the compressor of dehumidification system and throttling set.
9. heat pump drying room according to claim 5, which is characterized in that the lower section of efficient dehumidification module is pre-chilled in the air inlet
It is provided with drip tray.
10. heat pump drying room according to claim 5, which is characterized in that the evaporator-condenser is changed using finned tube
Hot device.
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| CN201810856334.7A CN109668384B (en) | 2018-07-30 | 2018-07-30 | Heat pump drying room |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507231A (en) * | 2018-04-27 | 2018-09-07 | 上海伯涵热能科技有限公司 | A kind of heat pump system of the multi-stage condensing device condensate liquid deeply undercooling of Multi-stage heating |
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