CN207365577U - A kind of drying unit of outer thermal starting and depth dehumidifying - Google Patents
A kind of drying unit of outer thermal starting and depth dehumidifying Download PDFInfo
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- CN207365577U CN207365577U CN201721069099.6U CN201721069099U CN207365577U CN 207365577 U CN207365577 U CN 207365577U CN 201721069099 U CN201721069099 U CN 201721069099U CN 207365577 U CN207365577 U CN 207365577U
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- Drying Of Solid Materials (AREA)
Abstract
The utility model provides the drying unit of a kind of outer thermal starting and depth dehumidifying, including heat pump system, drying nest, the dried medium flow channel and flow pass being connected with drying nest, the input terminal of flow channel is connected with the output terminal of flow pass, forms a circuit for dried medium circulation；Drying nest includes two or more drying rooms；Heat pump system includes at least one set of single cold type heat pump unit and at least one set of cold-warm type heat pump unit；Single cold type heat pump unit includes connected the first compressor, condenser, first throttle valve and evaporator, and condenser is arranged in dried medium flow channel, and at least one evaporator is arranged in dried medium flow pass；Cold-warm type heat pump unit includes First Heat Exchanger, the second heat exchanger, second throttle, the second compressor and commutation four-way valve；On passage between flow channel and flow pass, the second heat exchanger is located in extraneous air First Heat Exchanger.
Description
Technical field
It the utility model is related to dry Heat Pump Design technical field, more particularly to the baking of a kind of outer thermal starting and depth dehumidifying
Equipment for drying.
Background technology
Heat pump is applied to the middle low temperature drying of such as damp grain containing wet stock, there is distinct energy-saving and environment-friendly spy
Point, has caused the highest attention of heat power engineering field and various circles of society.Considerable heat pump air conditioner enterprise, tries trough thing
Heat pump drying, timber heat pump drying, tobacco leaf, jujube, matrimony vine, grape, black fungus, Chinese herbal medicine etc. agricultural product heat pump drying, rice
Powder, noodles, marine product, pickled and cured meat etc. food article heat pump drying, achieve notable performance.
But heat pump is used for grain dry, also there is following key technical problem：
First, producing high temperature air will be greatly reduced heat pump heating energy efficiency ratio
In general, in order to improve dry tenacity and drying efficiency, the way for improving drying device inlet air temperature is taken, that is,
The relative humidity of the enthalpy of dry air, reduction dry air is improved by improving the temperature of dry air, so as to improve dry
Dry air is to heating efficiency and wettability power containing wet stock；
But if not use coal-fired hot-blast stove etc. fossil heat source, but use heat of the heat pump as dry-heat air
Source, then, drying device inlet air temperature is improved to improve dry air doing to the heating efficiency containing wet stock and wettability power
Method, exactly " fight the enemy 1,000 from damage 800 ", even " fight the enemy 800 from damage 1,000 ", technically, economically all lose more than gain.
Test and report from the heating capacity under different condensation temperatures in different evaporating temperatures from following U.S.'s complan compressors
In announcement, the important conclusion as follows on heat pump heating characteristic can be obtained：
1. the heats power of heat pump condenser is mainly determined by evaporating temperature (evaporating pressure), with evaporating temperature positive correlation！
2. the circulation temperature rise (condensation temperature-evaporating temperature) of heat pump system determines heating energy efficiency ratio, and circulate temperature rise with
Heating energy efficiency ratio is negatively correlated！
In the following table, H- heating capacities, P- input powers；
SC=8 DEG C of system degree of supercooling, SH=11 DEG C of the return-air degree of superheat
1. the heats power of heat pump condenser and evaporating temperature positive correlation
Condenser heats power in the ZWKSE compressor tests report of complan companies of the U.S. is looked at (to steam with evaporating temperature
Send out pressure) logical relation；
Under same condensation temperature (such as 65 DEG C), difference is very in different evaporating temperatures for condenser heats power
Greatly：Evaporating temperature often improves 10 DEG C, and heats power improves 25% or so；The heat pump system of ZWKSE driven compressors, condenser exist
Heats power when -30 DEG C of evaporating temperature is with+15 DEG C is respectively 4315W, 12544W, differs 190%.
And under same evaporating temperature (such as 10 DEG C), heats power of the heat pump unit in different condensation temperatures is as follows
Table：
| Condensation temperature DEG C | 65 | 55 | 45 | 35 | 25 |
| Heats power W | 11059 | 11183 | 11384 | 11631 | 11903 |
Under the conditions of same 10 DEG C of evaporating temperature, heating of the heat pump unit in 25 DEG C~65 DEG C of different condensation temperatures
More than power 11kw, between 11~12kw, difference≤8%；
This explanation:The heats power of heat pump condenser mainly determines by evaporating temperature (evaporating pressure), with evaporating temperature just
It is related.
2. the circulation temperature rise of heat pump unit is negatively correlated with heating energy efficiency ratio
Look at three typical conditions in the ZWKSE compressor tests report of complan companies of the U.S.：
1. circulate 10 DEG C of temperature rise (25 DEG C of condensation temperature, 15 DEG C of evaporating temperature) operating mode
Under 25 DEG C of condensation temperature, 15 DEG C of evaporating temperature operating mode, the circulation warm of heat pump system is upgraded to 10 DEG C of (condensation temperatures 25
DEG C -15 DEG C of evaporating temperature), the heating energy efficiency ratio (heats power/power of motor) of heat pump unit is up to 13860W/1427W=
9.7；If also it is up to 7 or so level plus factor, heating energy efficiency ratios such as wind turbine electrical power；
2. circulate 60 DEG C of temperature rise (65 DEG C of condensation temperature, 5 DEG C of evaporating temperature) operating mode
Under 65 DEG C of condensation temperature, 5 DEG C of evaporating temperature operating mode, circulation warm is upgraded to 60 DEG C, the heating energy efficiency ratio drop of heat pump unit
It is low to arrive 9774W/3187W=3.1, and this 3187W is the electrical power of compressor, if adding wind turbine electrical power and evaporator
It will appear from reversion defrosting system and do not heat etc. factor, whole heating energy efficiency ratio will be reduced to level close to 2；
3. circulate 95 DEG C of temperature rise (65 DEG C of -30 DEG C of evaporating temperatures of condensation temperature) operating mode
Under condensation temperature -30 DEG C of operating modes of 65 DEG C of evaporating temperatures, circulation temperature rise reaches 95 DEG C, the heat efficiency of heat pump unit
Than there was only 4315W/2853W=1.52, and this 2853W is the electrical power of compressor, if adding wind turbine electrical power and steaming
Hair device reversion defrosting system does not heat etc. factor, and whole heating energy efficiency ratio will be reduced to level close to 1, heat pump it is energy saving
Characteristic exhausts.
Above-mentioned U.S. complan companies ZWKSE compressor tests report shows：
Heat pump heating energy efficiency ratio, the circulation temperature rise (condensation temperature-evaporating temperature) with heat pump system are negatively correlated relation；Follow
Circumstance temperature liter is lower, and heating energy efficiency ratio is higher；Circulation temperature rise is higher, and heating energy efficiency ratio is lower, and circulates temperature rise and often expand 10 DEG C,
Heating energy efficiency ratio reduces by 20% or so；When circulation temperature rise reaches more than 60 DEG C, the economy of heat pump unit will be very poor.
2nd, drying device outlet air dust emission pollution atmospheric environment
In drying process, cereal is self-contained and paddy that is sweeping along hair, paddy clothing and soil dust, is done in drying device
After scorching wind sloughs moisture, become slim and graceful, lax, depart from cereal main body wantonly, air is discharged into the outlet air of drying device
Environment, becomes the important sources of atmosphere pollution.
Utility model content
For drying system in the prior art there are the problem of, the utility model provides a kind of outer thermal starting and is removed with depth
Wet drying unit, including heat pump system, drying nest, the dried medium flow channel being connected with drying nest and outflow are logical
Road, the input terminal of the flow channel are connected with the output terminal of the flow pass, form a circuit for dried medium circulation；
The drying nest includes two or more drying rooms；
The heat pump system includes at least one set of single cold type heat pump unit and at least one set of cold-warm type heat pump unit；
The single cold type heat pump unit includes connected the first compressor, condenser, first throttle valve and evaporator, institute
State condenser to be arranged in the dried medium flow channel, at least one evaporator is arranged in the flow pass；
The cold-warm type heat pump unit include First Heat Exchanger, the second heat exchanger, second throttle, the second compressor and
Commutate four-way valve, described First Heat Exchanger one end connect one end of second heat exchanger and between be connected with second throttle,
The both ends of the First Heat Exchanger other end, the other end of the second heat exchanger and the second compressor are all connected with the commutation four-way
Valve；The First Heat Exchanger is on the passage between the flow channel and the flow pass, the second heat exchanger position
In in extraneous air.
It is preferred that the First Heat Exchanger is located remotely from the inlet side of the condenser of the drying nest.
It is preferred that two or more drying rooms are in parallel, the output terminal of the flow channel is connected with one
Distribution pipe, each drying room is flowed to by the dried medium that the flow channel exports by the distribution pipe；
Two or more drying rooms are also connected by a gathering tube with the input terminal of the flow pass, by each
The dried medium of the drying room outflow is collected by the gathering tube to be flowed into the flow pass.
It is preferred that the heat pump system includes two sets or more than two sets of single cold type heat pump unit；All single cold type heat
Condenser in pump assembly is since, to the drying room order spread configuration, it often covers corresponding the import of the flow channel
And the evaporator in the flow pass set since the outlet of the flow pass to drying room order arrangement
Put.
It is preferred that the heat pump system, which includes at least, three sets of heat pump units, wherein at least two sets of heat pump units
Evaporator is located in the dried medium flow pass, and the evaporator of at least a set of heat pump unit is located at dried medium outflow
In passage atmosphere outside.
It is preferred that each condenser is far and near sequentially to the position between the drying room, corresponding group of evaporator
To the position distance sequence consensus of drying room.
It is preferred that the dried medium can be heated either directly or indirectly containing wet thing to carry heat and transmitting heat
Material promotes the medium containing moisture evaporation in wet stock, and the dried medium is situated between using air or nitrogen or carbon dioxide etc. are dry
Matter.
The drying unit of a kind of outer thermal starting provided by the utility model and depth dehumidifying due to using above technical scheme,
It is allowed to compared with prior art, have the following advantages that and good effect：
1st, the utility model, when drying system starts, passes through tune by setting the cold-warm type heat pump unit with four-way valve
Save four-way valve so that built-in First Heat Exchanger is used as condenser, and the second external heat exchanger is used as evaporator；Put
The second heat exchanger in surrounding air absorbs the heat of ambient air outside, the be placed in through heat pump injection inside drying system
One heat exchanger, the total amount of heat that the heat absorbed by exterior second heat exchanger is formed plus the work done during compression of the second compressor is discharged
Drying system inner air is given, so that the fast lifting thermic load of drying system, accelerates launching process；
2nd, the utility model in dry operational process, passes through tune by setting the cold-warm type heat pump unit with four-way valve
Save four-way valve so that built-in First Heat Exchanger is used as evaporator, and the second external heat exchanger is used as condenser；The
Two heat exchangers carry out the low temperature saturated air after the evaporator group of single cold type heat pump unit cool-down dehumidification again, absorb water and steam
The condensation heat of vapour and a small amount of air sensible, reinject external First Heat Exchanger, by heat (the mainly low temperature in drying system
Water vapour condensation heat in saturated air) it is discharged into outside drying unit, significantly reduce drying system internal condensation device group entrance sky
The absolute moisture content of gas, improves the drying capacity of drying system inner circulating air, carries wet ability；
3rd, the single cold type heat pump unit module that the utility model is heated using heat step recycling dry air step, significantly
Circulation temperature rise, pressure difference and the compression ratio between the condenser and evaporator of each set single cold type heat pump unit itself are reduced, significantly
Degree improves the heats power and heating energy efficiency ratio of each set heat pump system, so that the heats power and system of complete machine be greatly improved
Hot Energy Efficiency Ratio；
4th, the utility model uses dry gas stream closed cycle, in operation, single cold type heat pump unit and with four-way valve changes in temperature
The dust in drying device outlet air, powder have been dissolved in condensed water moisture film on the fin of the First Heat Exchanger of type heat pump unit, absorption
Dirt is discharged into sewer after being mixed with condensed water, thoroughly solves influence of the drying device dust-laden outlet air to ambient air；
5th, the utility model includes two or more drying rooms in parallel, and it is same to realize a large-scale heat pump unit
When drag multiple drying rooms " one drag more " operational mode, it is automatic with dry materials industrialization commercialization, drying machine maximization
The development trend of change is mutually agreed with, and relative to " one-to-one " pattern, has been saved wind turbine, electric cabinet, dust removal and filtration in large quantities and set
The standby setting waited, while investment is reduced, also improves the operational efficiency of equipment.
Brief description of the drawings
With reference to attached drawing, pass through the above-mentioned and other spy for stating detailed description, being more clearly understood that the utility model hereafter
Seek peace advantage, wherein：
Fig. 1 is the utility model embodiment one China and foreign countries thermal starting and the structure diagram of the drying unit of depth dehumidifying；
Fig. 2 is the utility model embodiment two China and foreign countries thermal starting and the structure diagram of the drying unit of depth dehumidifying；
Fig. 3 is the structure diagram of drying room in the utility model embodiment two；
Fig. 4 is the structure diagram that trolley is dried in the utility model embodiment two；
Fig. 5 is the structure diagram of pallet in the utility model embodiment two；
Fig. 6 is the utility model embodiment three China and foreign countries thermal starting and the structure diagram of the drying unit of depth dehumidifying；
Fig. 7 is the structure diagram of three kinds of drying rooms of the utility model embodiment.
Embodiment
Referring to the attached drawing for showing the utility model embodiment, the utility model is described in more detail.However, this reality
It can in many different forms be realized with new, and should not be construed as being limited by the embodiment herein proposed.On the contrary, propose
These embodiments be in order to reach fully and complete disclosure, and make those skilled in the art understand completely this practicality newly
The scope of type.In these attached drawings, for clarity, the size and relative size in layer and region may be exaggerated.
The utility model provides the drying unit of a kind of outer thermal starting and depth dehumidifying, including heat pump system, drying section
The flow channel and flow pass divide, being connected with drying nest, the input terminal of flow channel and the output terminal of flow pass connect
It is logical, form a circuit for dried medium circulation；Drying nest includes two or more drying rooms；Heat pump system bag
Include at least one set of single cold type heat pump unit and at least one set of cold-warm type heat pump unit；Single cold type heat pump unit includes connected
One compressor, condenser, first throttle valve and evaporator, condenser are arranged in flow channel, and at least one evaporator is set
Put in flow pass；Cold-warm type heat pump unit includes First Heat Exchanger, the second heat exchanger, second throttle, the second compression
Machine and commutation four-way valve, First Heat Exchanger one end connect one end of the second heat exchanger and between be connected with second throttle, first
The both ends of the heat exchanger other end, the other end of the second heat exchanger and the second compressor are all connected with commutation four-way valve；First heat exchange
On passage between flow channel and flow pass, the second heat exchanger is located in extraneous air device.
Further, heat pump system includes two sets or more than two sets of single cold type heat pump unit；All single cold type heat pumps
Condenser in unit is since, to institute's drying room order spread configuration, it often covers corresponding and is located at the import of flow channel
Evaporator in flow pass since the outlet of flow pass to drying room order spread configuration.Preferably, each condenser arrives
The far and near order in position between the drying room, the position distance sequence consensus of corresponding group of evaporator to drying room.
Wherein, the setting quantity of drying room can be adjusted as the case may be, can there was only two, or 3,4,
5th, 6 ..., it is not limited herein, and multiple drying rooms are in parallel relationship.Specific constructive form the utility model of drying room
It is not limited, can be adjusted according to dried object, such as can be drying tower, can is drying shed room etc..
Wherein, the group number for each heat pump unit that heat pump system includes can be adjusted as the case may be, not done herein
Limitation.
The drying unit drying operation principle be：
1st, principle is dried
Enter for dry medium in flow channel, flow through the medium that condenser group is heated into high temperature drying by step,
It is injected into each drying room of drying nest, after carrying out damp and hot exchange with the dried object of drying room, cooling is put
Go out sensible heat, promote the moisture evaporation vaporization in dried object, be mixed into warm humid medium, discharged from each drying room；By each drying room
The warm humid medium of discharge, converges and is displaced into flow pass, flows through evaporator group and releases sensible heat, and depth by step cooling
Dehumidifying filters out moisture, becomes low temperature saturated media；The shading saturated media discharged by flow pass is being transported to flow channel
Interior, the ring by the heating of condenser group in high temperature drying, it is dried wettability power and is regenerated, and starts next circulation；So
Move in circles, until dried object is dried.
2nd, heat pump system operation principle
(1) outer thermal starting process
When drying unit starts, cold-warm type heat pump unit is arranged to by mould of " warming oneself " by the adjusting to the four-way valve that commutates
Formula, i.e. First Heat Exchanger are used as condenser, and the second heat exchanger is used as evaporator；By being placed outside in surrounding air
Second heat exchanger absorbs the heat of ambient air outside, and First Heat Exchanger inside drying system is placed in through heat pump injection, will be by
The total amount of heat that the heat that second heat exchanger absorbs is formed plus the work done during compression of the second compressor is released to empty inside drying system
Gas, carrys out start quickly process with the thermic load of fast lifting drying system；
When starting due to drying unit, the temperature of the internally dry medium of drying unit and dried object, with surrounding air temperature
Degree is not much different, so the cold-warm type heat pump system with four-way valve absorbs surrounding air heat and carrys out heat drying internal system air
And material, that is, when performing " outer thermal starting " task, the circulation temperature rise of the heat pump system is smaller, and heat efficiency is higher；
(2) depth dehumidification process
After drying unit is completed to launch into operation, since drying system has higher thermic load, and
First compressor horsepower of also single cold type heat pump unit forms closed cycle drying system lasting energy as " net power "
Amount is injected, and the temperature inside drying system will be presented and slowly climbed；
At this time, cold-warm type heat pump unit being arranged to pattern of " freezing ", i.e. First Heat Exchanger is used as evaporator, and second
Heat exchanger is used as condenser；The evaporation of the single cold type heat pump unit of heat step recycling is carried out in inner loop dry gas stream
After device group, satisfied by First Heat Exchanger (being used as evaporator at this time) to the low temperature after the evaporator group of single cold type heat pump unit
Cool-down dehumidification is carried out again with air, absorbs the condensation heat of water vapour and a small amount of air sensible, reinjects external second heat exchanger
(at this time as condenser), drying is discharged into by the heat (mainly water vapour condensation heat in low temperature saturated air) in drying system
Outside system, further to reduce the absolute moisture content of Drying system of agricultural products inner air, it is empty to improve circulation in drying system
The drying capacity of gas, carry wet ability；
Due to the low temperature after the evaporator group for the single cold type heat pump unit that the recycling of heat step is engaged in inside drying system
Saturated air, relative humidity is 100% or close to 100%, so the enthalpy of the low temperature saturated air is still higher, with phase
Humidity is compared in 50% or so surrounding air, enthalpy approaches or even more slightly higher；Therefore, it is operated in low temperature in drying system
Band four-way valve cold-warm type heat pump between saturated air and surrounding air, evaporating temperature is higher, circulation temperature rise is relatively low, the heat pump machine
Group Endothermic power is higher, heat efficiency is higher.
The drying unit of outer thermal starting provided by the utility model and depth dehumidifying, has the following advantages：
1st, the utility model realizes that outer thermal starting and depth are removed by the setting with commutation four-way valve cold-warm type heat pump unit
Wet function, accelerates start-up course, improves drying capacity；
2nd, the utility model uses dry gas stream closed cycle, single cold type heat pump unit and with four-way valve cold-warm type heat pump machine
The dust in drying device outlet air, dust and condensation have been dissolved in condensed water moisture film on the fin of the First Heat Exchanger of group, absorption
Sewer is discharged into after water mixing, thoroughly solves influence of the drying device dust-laden outlet air to ambient air；
3rd, the utility model includes two or more drying rooms in parallel, and it is same to realize a large-scale heat pump unit
When drag multiple drying rooms " one drag more " operational mode, it is automatic with dry materials industrialization commercialization, drying machine maximization
The development trend of change is mutually agreed with, and relative to " one-to-one " pattern, has been saved wind turbine, electric cabinet, dust removal and filtration in large quantities and set
The standby setting waited, while investment is reduced, also improves the operational efficiency of equipment；
4th, the single cold type heat pump unit module that the utility model is heated using heat step recycling dry air step, significantly
Circulation temperature rise, pressure difference and the compression ratio between the condenser and evaporator of each set single cold type heat pump unit itself are reduced, significantly
Degree improves the heats power and heating energy efficiency ratio of each set heat pump system, so that the heats power and system of complete machine be greatly improved
Hot Energy Efficiency Ratio.
Specific embodiment is further described below：
Embodiment 1
With reference to Fig. 1, in the present embodiment, drying nest includes five drying rooms (3a, 3b, 3c, 3d, 3e), and five dry
Dry (3a, 3b, 3c, 3d, 3e) is in parallel, and input terminal is connected with the output terminal of flow channel 1, output terminal and flow pass 2
Input terminal connects.Specifically, the output terminal of flow channel 1 is connected with a distribution pipe 8, the dried medium exported by flow channel 1
It is flowed into by distribution pipe 8 in five drying rooms (3a, 3b, 3c, 3d, 3e) in parallel；Five drying rooms (3a, 3b, 3c, 3d,
Output terminal 3e) is connected on gathering tube 9, is aggregated into by the medium of five drying room discharges in gathering tube 9, and by gathering tube 9
It is transported in flow pass 2.
Certainly, two or three drying rooms etc. can also be only provided with other embodiment, be not limited herein.
In the present embodiment, drying room is a drying tower structure, is mainly used to dried grain etc., one is provided with the right side of it
The dried object of dry tower bottom is continuously transported to the top of drying tower by elevator so that dried object is from drying tower
Top slowly moves downward the bottom until drying tower, so moves in circles until dried object is dried.Wherein, cloth in drying tower
Dryer section is equipped with, dried medium is dried the dried object Jing Guo dryer section horizontal through dryer section.
Certainly, in other embodiments, drying room can also be other structures form, not be limited herein.
In the present embodiment, dried medium uses air or dried medium, is not limited herein.
In the present embodiment, heat pump system includes three groups of single cold type heat pump units, and every group of heat pump unit includes cold
Condenser (4a, 4b, 4c), evaporator (5a, 5b, 5c), the first compressor (7a, 7b, 7c) and first throttle valve (6a, 6b, 6c),
Pipeline in condenser and evaporator is connected and forms a circulation canal flowed through for refrigerant with the first compressor, and refrigerant is certainly
First compressor starts are set between condenser and evaporator followed by the pipeline in condenser and evaporator, first throttle valve
Pipeline on.From the first compressor come out it is pressurized after high temperature refrigerant gas, flow through the pipeline of condenser, realize heat release
Cooling, refrigerant liquid of the high temperature refrigerant gas-condensate liquid through first throttle valve decompression into low pressure are input to the pipe of evaporator
In road, absorbing heat of vaporization becomes low pressure refrigerant gas；The first compressor low pressure refrigerant gas to being come by evaporator again
After body is pressurizeed, condenser is conveyed to, so as to form a complete refrigerant circulation.
In the present embodiment, condenser 4a, 4b, 4c of three groups of cold and hot pump assemblys of list are arranged in flow channel 1, are steamed
Hair device 5a, 5b, 5c are arranged in flow pass 2.Wherein, 4a, 4b, 4c in three groups of heat pump units are from flow channel 1
Inlet side starts the side order spread configuration (i.e. 4a → 4b → 4c) to drying nest, while every group of corresponding evaporation
Device 5a, 5b, 5c since the output terminal of flow pass 2 to the side order spread configuration (i.e. 5a → 5b → 5c) of drying room 3.It is cold
It is spaced a distance between condenser 4a, 4b, 4c, it is also spaced a distance between evaporator 5a, 5b, 5c；Preferably, it is each cold
Condenser is to the far and near order in the position between drying room, the position distance sequence consensus of corresponding group of evaporator to drying room.
Dried object is placed in drying room, and dried medium enters under the action of wind turbine 10,11 to be flowed into logical 1.It is dry to be situated between
After matter enters flow channel 1, successively by condenser 4a, 4b, 4c, the heat of absorptive condenser inner refrigerant gas condensation releasing
Amount, dried medium are heated into high temperature air by step；High temperature air is input into drying room, with the dried object in drying room
Carry out hot and humid area；The output containing wet dried medium after dried object is dried is entered in flow pass 2；Containing wet drying
After medium enters in flow pass 2, followed by evaporator 5c, 5b, 5a, hot friendship is carried out with the refrigerant liquid in evaporator
Change, release heat containing wet dried medium, evaporator 5c, 5b, 5a realize exhaust heat stepped recycling, pass through evaporator containing wet dried medium
When 5c, 5b, 5a, cool down condensation moisture；The low temperature saturation dried medium of moisture is filtered out under the action of wind turbine, again by
It is sent in flow channel 1, it is lasting to carry out, until drying is completed.
Certainly, heat pump system may also comprise one or two or four heat pump units etc. in other embodiments, this
Place is not limited, and evaporator group can not be also entirely located in flow pass, can also only have an evaporator to be located at flow pass 2
It is interior, it is not limited herein.
In the present embodiment, heat pump system includes one group of cold-warm type heat pump unit, and cold-warm type heat pump unit includes
One heat exchanger 4d, the second heat exchanger 5d, second throttle 6d, the second compressor 7d and commutation four-way valve 12, First Heat Exchanger 4d,
Second throttle 6d, the second heat exchanger 5d, commutation four-way valve 12 are sequentially connected and form primary Ioops, the both ends of the second compressor 7d
It is connected with commutation four-way valve 12；Wherein, built-in First Heat Exchanger 4d is located remotely from the inlet side of the condenser of drying nest, i.e.,
Positioned at the right side of condenser 4a, as shown in Fig. 1.
Further, the side of the second heat exchanger 5d in external environment condition is also equipped with wind turbine, for accelerating air
Flow through the second heat exchanger 5d.
Certainly, it may also comprise two groups or more cold-warm type heat pump unit in other embodiments, can be according to tool
Body situation is adjusted, and is not limited herein.
Embodiment 2
With reference to Fig. 2-5, the present embodiment is the modification carried out on the basis of embodiment 1.
In the present embodiment, which includes three drying rooms 18, and three drying rooms 18 are in parallel.
In the present embodiment, drying room is a drying shed, for drying matrimony vine, grape, jujube, capsicum etc..
Specifically, multiple drying trolleies 19 are disposed with as illustrated in figs.3-5, in drying shed；Each drying trolley 19, which divides, is
Downward two layers of drying space 1901,1902, drying space 1901,1902 or so are opened wide so that drying space 1901,1902 is formed
One passage flowed through for dried medium；Multiple pallets 20 are disposed with drying space (1901,1902), 20 level of pallet is set
Put, realize installation by drying the stent 1903 on space inner wall, sequence interval arranges multiple pallets 20 from top to bottom；Its
In, 20 bottom of pallet is a mesh-plate structure, easy to the circulation of air between adjacent trays 20, so as to improve drying effect.
Dried object (matrimony vine, grape, jujube, capsicum etc.) is uniformly taped against on pallet 20, then pallet 20 is inserted into baking
In the space of drying up and down of dry trolley 19；Multiple drying trolleies 19 are pushed into baking room again, multiple drying trolleies 19 or so
It is arranged in a row, and closely, the upper strata drying space 1901 of multiple drying trolleies forms one and supplies what dried medium flowed through
Upper channel 1801, lower floor's drying space 1902 of multiple drying trolleies form a lower channel 1802 flowed through for dried medium；
Baking room side up and down be additionally provided with import 1903 and outlet 1804, the high temperature drying medium from distribution pipe 8, from
Import 1803 is entered in upper channel 1801, and dried medium right-to-left order skims over the dried object of trolley upper strata placement；Stream
Turn and entered in lower channel 1802 after to the opposite side of drying shed, dried medium is sequentially skimmed over trolley lower floor and put from left to right again
The dried object put, finally from the discharge of outlet 1804.Continuous cooling heat release, promotes dried object in dried medium traveling process
Moisture evaporation is mixed finally from 1804 rows of outlet such as in gathering tube 9 with dried medium into vapor.
Embodiment 3
With reference to Fig. 6-7, the present embodiment is the modification carried out on the basis of embodiment 1.
In the present embodiment, which includes three drying rooms 21, and three drying rooms 21 are in parallel.
In the present embodiment, drying room is a tobacco flue-curing house, for drying the products such as tobacco leaf.
Specifically, as shown in Figure 7, tobacco flue-curing house includes the upper bellows chamber 2101 being sequentially set with up and down, tobacco leaf suspension sky
Between 2105 and lower bellows chamber 2102；The side of upper bellows chamber 2101 is disposed with import 2103, and the side of lower bellows chamber 2102 is disposed with outlet
2104, and import 2103, outlet 2104 are located at homonymy；Tobacco leaf suspension is hung with least one layer of tobacco leaf layer, example in space 2105
Three layers of tobacco leaf layer are disposed with as shown in Figure 7.
Tobacco leaf drying process is as follows：
The medium of high temperature drying from distribution pipe 8 is from the air inlet 2103 in tobacco flue-curing house upper right side, into above tobacco leaf
Upper bellows chamber 2101, diffusion, slow down, and dynamic head is converted into hydrostatic head, promotes dried medium to flow through 3 layers of tobacco leaf layer from top to bottom, drops
Warm heat release, makes moisture content in leaves heat absorption evaporation become water vapour, and water vapour is mixed into warm humid medium into tobacco leaf lower section with medium
Lower bellows chamber 2102, be drained into after the convergence of lower bellows chamber 2102 in gathering tube 9 from tobacco flue-curing house lower right air outlet 2104.
Those skilled in the art should be understood that the utility model can be realized without de- with many other concrete forms
From the spirit or scope of the utility model.Although have been described for the embodiment of the utility model, it should be understood that the utility model should not
Be limited to these embodiments, those skilled in the art can as defined by the following claims the utility model spirit and
Within the scope of make and changing and modifications.
Claims (7)
1. the drying unit of a kind of outer thermal starting and depth dehumidifying, it is characterised in that including heat pump system, drying nest, with doing
The dried medium flow channel and flow pass that dry part is connected, the input terminal of the flow channel and the flow pass
Output terminal connects, and forms a circuit for dried medium circulation；The drying nest includes two or more dryings
Between；
The heat pump system includes at least one set of single cold type heat pump unit and at least one set of cold-warm type heat pump unit；
The single cold type heat pump unit includes connected the first compressor, condenser, first throttle valve and evaporator, described cold
Condenser is arranged in the flow channel, and at least one evaporator is arranged in the flow pass；
The cold-warm type heat pump unit includes First Heat Exchanger, the second heat exchanger, second throttle, the second compressor and commutation
Four-way valve, described First Heat Exchanger one end connect one end of second heat exchanger and between be connected with second throttle, it is described
The both ends of the First Heat Exchanger other end, the other end of the second heat exchanger and the second compressor are all connected with the commutation four-way valve；
The First Heat Exchanger is on the passage between the flow channel and the flow pass, and second heat exchanger is positioned at outer
In portion's air.
2. the drying unit of outer thermal starting according to claim 1 and depth dehumidifying, it is characterised in that first heat exchange
Device is located remotely from the inlet side of the condenser of the drying nest.
3. according to the drying unit of the outer thermal starting described in claim 1 and depth dehumidifying, it is characterised in that two or more
The drying room be in parallel, the output terminal of the flow channel is connected with a distribution pipe, is exported by the flow channel dry
Dry medium flows to each drying room by the distribution pipe；
Two or more drying rooms are also connected by a gathering tube with the input terminal of the flow pass, by each described
The dried medium of drying room outflow is collected by the gathering tube to be flowed into the flow pass.
4. the drying unit of outer thermal starting according to claim 1 and depth dehumidifying, it is characterised in that the heat pump system
Include two sets or more than two sets of single cold type heat pump unit；Condenser in all single cold type heat pump units leads to from described flow into
The import in road starts to the drying room order spread configuration, it often covers evaporation corresponding and in the flow pass
Device since the outlet of the flow pass to the drying room order spread configuration.
5. the drying unit of outer thermal starting according to claim 1 and depth dehumidifying, it is characterised in that the heat pump system
Including at least there is three sets of heat pump units, the evaporator of the wherein at least two sets heat pump units is located at dried medium outflow and leads to
In road, the evaporator of at least a set of heat pump unit is located in dried medium flow pass atmosphere outside.
6. the drying unit of the outer thermal starting and depth dehumidifying according to claim 1 or 4 or 5, it is characterised in that each described
Condenser is far and near sequentially to the far and near order in position between the drying room, the position of corresponding group of evaporator to drying room
Unanimously.
7. the drying unit of outer thermal starting according to claim 1 and depth dehumidifying, it is characterised in that the dried medium
The promotion containing wet stock can be either directly or indirectly heated containing moisture evaporation in wet stock to carry heat and transmitting heat
Medium, the dried medium use air or nitrogen or carbon dioxide or other inert gases.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721069099.6U CN207365577U (en) | 2017-08-24 | 2017-08-24 | A kind of drying unit of outer thermal starting and depth dehumidifying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721069099.6U CN207365577U (en) | 2017-08-24 | 2017-08-24 | A kind of drying unit of outer thermal starting and depth dehumidifying |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621129A (en) * | 2017-08-24 | 2018-01-23 | 上海伯涵热能科技有限公司 | A kind of drying unit of outer thermal starting and depth dehumidifying |
| CN109442891A (en) * | 2018-09-21 | 2019-03-08 | 上海伯涵热能科技有限公司 | A kind of dehumidifying drying unit and drying unit that efficient dehumidification combination module being pre-chilled using air inlet |
| CN114294940A (en) * | 2021-12-23 | 2022-04-08 | 珠海格力电器股份有限公司 | Hot air supply assembly and heat pump drying system |
-
2017
- 2017-08-24 CN CN201721069099.6U patent/CN207365577U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621129A (en) * | 2017-08-24 | 2018-01-23 | 上海伯涵热能科技有限公司 | A kind of drying unit of outer thermal starting and depth dehumidifying |
| CN107621129B (en) * | 2017-08-24 | 2023-08-25 | 广州万二二麦工程技术有限公司 | Drying device with external hot start and deep dehumidification |
| CN109442891A (en) * | 2018-09-21 | 2019-03-08 | 上海伯涵热能科技有限公司 | A kind of dehumidifying drying unit and drying unit that efficient dehumidification combination module being pre-chilled using air inlet |
| CN114294940A (en) * | 2021-12-23 | 2022-04-08 | 珠海格力电器股份有限公司 | Hot air supply assembly and heat pump drying system |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240806 Address after: Room R21-A124, Room 403, No. 1, Mingzhu 1st Street, Hengli Town, Nansha District, Guangzhou City, Guangdong Province, 511466 Patentee after: Guangzhou Wan'ermei Engineering Technology Co.,Ltd. Country or region after: China Address before: Room 203, building 1, No. 23 and 33, Lane 466, Yindu Road, Minhang District, Shanghai Patentee before: SHANGHAI BOHAN THERMAL ENERGY TECHNOLOGY Co.,Ltd. Country or region before: China |