CN108800875A - It is sectional temperature-controlled to control wet continuous agriculture spy flowing water heat pump drying line and furnace drying method - Google Patents
It is sectional temperature-controlled to control wet continuous agriculture spy flowing water heat pump drying line and furnace drying method Download PDFInfo
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- CN108800875A CN108800875A CN201810687941.5A CN201810687941A CN108800875A CN 108800875 A CN108800875 A CN 108800875A CN 201810687941 A CN201810687941 A CN 201810687941A CN 108800875 A CN108800875 A CN 108800875A
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- drying
- channel
- air
- cold scattering
- heat pump
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- 238000001035 drying Methods 0.000 title claims abstract description 243
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 59
- 125000003118 aryl group Chemical group 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 45
- 238000001704 evaporation Methods 0.000 claims description 17
- 230000008020 evaporation Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 230000002045 lasting effect Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 238000005373 pervaporation Methods 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000003570 air Substances 0.000 description 55
- 239000007789 gas Substances 0.000 description 15
- 239000000446 fuel Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000007516 Chrysanthemum Nutrition 0.000 description 1
- 244000189548 Chrysanthemum x morifolium Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000883990 Flabellum Species 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction 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
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/16—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by wheeled trucks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/063—Movable containers or receptacles, e.g. carts, trolleys, pallet-boxes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Abstract
The invention discloses a kind of sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying lines of control, including heat pump system and baking room, baking room to be from top to bottom divided into cold scattering channel, heating channel and drying channel；Baking room is divided into several drying sections in the longitudinal direction, and the heating channel of adjacent drying section is come by baffle interval；It is equipped with a set of heat pump system in each drying section；It is equipped with the pressure wet-emitting blower for being pumped into cold scattering channel for the gas in channel will to be heated in cold scattering channel in each drying section above condenser, the air inlet of wet-emitting blower is forced to be connected to heating channel；The drip tray for access condensed water is equipped with below evaporator, drip tray is connected with a diversion pipe, and condensed water collecting box is equipped with below the end of diversion pipe.The invention also discloses the furnace drying methods for using above-mentioned drying line.Energy conservation and environmental protection no pollution of the present invention, can collect the aromatic substance generated in drying course, and prevent the drying channel of different drying sections from large-scale air-flow mixing occurs.
Description
Technical field
The present invention relates to agricultural product drying technical fields.
Background technology
The drying equipment of current traditional assembly line form is largely using tradition, burnings such as coal-fired, burning natural gas, fuel oils
The traditional fuels such as biological particles, alcohol combustion are also released as energy source, fuel combustion while generating heat
A large amount of pernicious gases, and capacity usage ratio is very low use etc. this excessively high, and the heat source service life also only has 4 ~ 5 years, and disadvantage is very bright
It is aobvious.Since the market price fluctuations of above each class A fuel A are very big, prodigious difficulty is brought to the cost control of product drying.
With the development of economy and society, more and more Special Agriculture Products need to carry out drying operation.Large quantities of Special Agriculture Products dry
Do the challenge brought to Design of Production Line.
Many Special Agriculture Product needs are prevented in outdoor exposure for a long time, and if Special Agriculture Product drying course usually requires to continue
Dry hour, therefore the drying line for the formula of being back to back cannot be designed as.In drying line, need sub-material, charging, transport, into baking room
Deng operation.If a batch materials go out baking room simultaneously into baking room simultaneously, when passing in and out simultaneously, a large amount of manpower is needed, and is dried
In several hours during dry, these a large amount of people are again occupied with nothing, cause the waste of manpower.
Many Special Agriculture Products（Such as chrysanthemum）Aromatic substance can be volatilized during the drying process, if these aromatic substances
Can collect will will produce prodigious economic benefit, but lacks collect the aromatic substance generated in drying course at present
Technological means.
During Special Agriculture Product is dried, dry required for the different drying stages such as early period, drying mid-term and drying later stage
Drying temperature may be different, current drying equipment cannot simply and easily meet this demand.If drying channel drawn
It is divided into several sections and is controlled respectively into trip temperature, then can well solves this problem, but for the baking of front and back perforation
Dry passage, how to prevent the wind of different sections from a large amount of mixing phenomenas occur is a design challenges.
Invention content
The purpose of the present invention is to provide a kind of sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying lines of control, are suitable for less
Charging preparation is repeated in manpower, can collect the aromatic substance generated in drying course, and prevents different baking zones
Large-scale air-flow mixing occurs for the drying channel of section.
To achieve the above object, the wet continuous agriculture spy flowing water heat pump drying line of sectional temperature-controlled control of the invention includes heat pump system
And baking room, baking room are from top to bottom divided into cold scattering channel, heating channel and drying channel；Drying channel is equipped with for passing through
Dry the trolley track of trolley；It dries trolley and is equipped with driving mechanism；
Moving direction to dry trolley is preceding to baking room rear wall is equipped with the feeding gate being connected with drying channel, dries
Stove room front side wall is equipped with the discharge door being connected with drying channel；
Baking room rear wall is equipped with the rear air port being connected with cold scattering channel, and rear forced convertion wind turbine is equipped at rear air port；It dries
Stove room front side wall is equipped with the preceding air port being connected with cold scattering channel, and preceding forced convertion wind turbine is equipped at preceding air port；
Baking room is divided into several drying sections in the longitudinal direction, and the cold scattering channel of adjacent drying section is interconnected, adjacent
The drying channel of drying section is interconnected, and the heating channel of adjacent drying section is come by baffle interval；
It is equipped with a set of heat pump system in each drying section, heat pump system includes the pressure being connected by circulation successively by refrigerant line
Contracting machine, condenser, throttle valve and evaporator, compressor, throttle valve and evaporator form heat pump main frame；Heat pump main frame is located at cold scattering
In channel, condenser is located in heating channel, and the heating channel bottom wall of each drying section rear end is equipped with return air inlet, and return air inlet connects
Logical heating channel and drying channel；
Condenser is obliquely installed, the upper end of condenser be connected with the roof in heating channel and its bottom end with it is on front side of return air inlet plus
The bottom wall of the passage of heat is connected；Circulating fan, the heating channel floor at circulating fan are equipped in heating channel in front of condenser
Wall is equipped with the drying air inlet for being connected to drying channel；
It is equipped in each drying section, in the cold scattering channel above condenser and is pumped into cold scattering for the gas in channel will to be heated
The pressure wet-emitting blower in channel forces the air inlet of wet-emitting blower to be connected to heating channel；
Baking room is externally provided with outdoor temperature sensor；Drying temperature sensing is respectively equipped in the drying channel of each drying section
Device and drying humidity sensor；It is respectively equipped with cold scattering temperature sensor in the cold scattering channel of each drying section；
The circulated air of the outdoor temperature sensor, preceding forced convertion wind turbine, rear forced convertion wind turbine, each drying section
Machine, compressor force wet-emitting blower, drying temperature sensor, drying humidity sensor and cold scattering temperature sensor electric with one
Control device is connected；
It is equipped with the drip tray for access condensed water below the evaporator of each drying section, the drip tray of each drying section is with one
Diversion pipe is connected, and the end of diversion pipe, which is equipped with, is open and stretches out baking room, and condensation water collection is equipped with below the end of diversion pipe
Case.
In each drying section, the side wall in the heating channel at condenser rear is equipped with for connecting open to atmosphere fresh air wind
Door.
In each drying section, the circulating fan includes that the left circulating fan being arranged on the left of heating channel and setting are adding
Right circulating fan on the right side of the passage of heat, the drying air inlet include the left drying air inlet being arranged on the left of heating channel and set
Set the right drying air inlet on the right side of heating channel；It is equipped in heating channel on the left of left circulating fan for drawing air-flow downwards
The left wind deflector led is equipped with the right wind deflector for guiding air-flow downwards in the heating channel on the right side of right circulating fan.
Inner-outer circulation is equipped in each drying section, in cold scattering channel selects bellows, compressor and throttle valve setting to exist
Inner-outer circulation selects in the cold scattering channel outside bellows, and evaporator is arranged on the side wall that inner-outer circulation selects bellows, inside and outside to follow
Ring selects to be equipped with evaporation fan in bellows, and evaporation fan is used to the gas in cold scattering channel being pumped into inner-outer circulation by evaporator
Select bellows；Inner-outer circulation selection bellows are located at the one side wall in cold scattering channel and are equipped with interior cycle air-valve, inner-outer circulation selection
Another side wall of bellows is equipped with for connecting open to atmosphere outer circulation air-valve.
The interior cycle air-valve and outer circulation air-valve are solenoid valve；
Each interior cycle air-valve, each outer circulation air-valve, each fresh air air door, each left circulating fan, each right circulating fan and respectively evaporate wind
Machine is connected with electric control gear.
The invention also discloses the furnace drying methods for using the above-mentioned sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control, press
Following steps carry out：
Material preparatory process including lasting progress and baking operation；
Material preparatory process is that material to be dried is packed into pallet and shakeout by staff, and pallet is packed into the support of drying trolley
In disc carrier；Staff manually goes out the eliminating impurities in material when sabot；Tray supporter is equipped with multilayer；
Staff will dry the time required to trolley is filled and the disengaging of the sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control
Material interval is identical, is divided between input and output material N minutes；It dries after filling the material after shakeouing in the tray supporter of trolley, work people
Member opens feeding gate, and drying trolley is pushed into drying channel along trolley track；
Baking operation is：
Staff rule of thumb sets different drying sections T DEG C different of drying target temperatures；
Driving mechanism driving drying trolley from the front to the back at the uniform velocity by the time of drying channel be drying time；Drying time is M
Minute；The quantity of drying trolley when drying in drying channel is（M/N）- 1；Drying trolley moves M minutes passes through baking just
Dry passage；Drying time and input and output material interval are set by staff according to the case where material to be dried；
After baking operation starts, electric control gear starts compressor, evaporation fan, left circulating fan and the right cycle of each drying section
Wind turbine, left circulating fan and right circulating fan the certain driving air-flow recycle stream between the heating channel of each drying section and drying channel
Dynamic, the heat of air-flow absorptive condenser dries material during circulating herein；Electric control gear is pressed by controlling
The start and stop of contracting machine control the temperature in each drying section in T ± 1 DEG C；
Electric control gear receives the temperature signal that outdoor temperature sensor and each cold scattering temperature sensor transmit, and is passed with each cold scattering temperature
The average value of sensor is as the temperature in cold scattering channel；When outdoor temperature is more than or equal to the temperature in cold scattering channel, automatically controlled dress
It sets and opens outer circulation air-valve；When outdoor temperature is less than the temperature in cold scattering channel, electric control gear opens interior cycle air-valve；
Gas in cold scattering channel is pumped into inner-outer circulation selection bellows and passes through interior cycle air-valve or outer circulation by evaporation fan
Air-valve is sent out；Gas is when entering inner-outer circulation and selecting bellows by evaporator to heating evaporation device；
When electric control gear detects that the relative humidity in drying channel is more than 85% by drying humidity sensor, electric control gear
It opens and forces wet-emitting blower and fresh air air door, the gas in channel will be heated and force to be pumped into cold scattering channel；Damp-heat air is logical
It is condensed when pervaporation device, aromatic substance is dissolved in condensed water and flow to condensed water collecting box by diversion pipe with condensed water
In；When the relative temperature in drying channel is less than 50% or keeps constant after ten minutes, electric control gear, which is closed, forces wet-emitting blower
And fresh air air door；
Every N minutes, staff opened a feeding gate and discharge door, is sent into a new drying trolley and sends out a baking
Drying trolley after dry.
When the temperature in cold scattering channel is less than 7 DEG C of outdoor temperature and the duration reaches 10 minutes, electric control gear is opened
Preceding forced convertion wind turbine and rear forced convertion wind turbine are opened, outdoor air is sent into cold scattering channel, preceding pressure by rear forced convertion wind turbine
Convection flow fan sends out the gas in cold scattering channel, to carry out forced ventilation to cold scattering channel.
The present invention has the advantage that：
By forcing wet-emitting blower, can will be pumped into cold scattering channel containing the damp-heat air of aromatics volatile materials, and
It is condensed at the minimum evaporator of temperature, aromatics volatile materials dissolves under cold service in condensed water, and through water conservancy diversion
Pipe is collected into condensed water collecting box.In this way, the present invention can effectively collect the aromatic substance generated in drying course, it is
Later use creates conditions.
Material preparatory process and baking operation lasting progress simultaneously, can realize and work continuously in the present invention.Staff
It is primary only to need to prepare material for a drying trolley, therefore more manpower need not be equipped with.Staff can be carried out continuously
Material preparatory process is not in due to unreasonable caused occupied with nothing, the waste people after preparing a material of process tissue
The phenomenon that power.
The present invention dry operation in, feeding gate and discharge door are only periodically opened, in most times, feeding gate and
Discharge door is closed.Under feeding gate and discharging door closure state, entire drying channel is in closed state；At this point, each
Although the circulating fan of drying section is opened simultaneously, since the suction air volume and air output of each circulating fan are always identical, and
Gas gross in entire drying channel is also identical, therefore in actual motion, the circulated air of each circulating fan sucking, big absolutely
Majority is all the circulated air that itself is sent out.If it is other cycles that the circulated air of some circulating fan sucking, which has quite a few,
, then necessarily there is unbalanced phenomenon in the wind that wind turbine is sent out.Experiment also indicates that, although being not provided with separation between each drying section
Plate, but the most inside cycles still carried out in drying section of air-flow of each drying section, will not occur to mix wind on a large scale
Phenomenon.
The present invention can control the drying temperature in each drying section respectively by electric control gear, to enable the invention to
According to the characteristic of Special Agriculture Product, the before baking baking of the different drying stages offer finings such as phase, drying mid-term and drying later stage
Dry temperature, improves drying effect.
Unique wind path structure used herein is heat source with air source heat pump, is made completely in entire production process
It is energy source with electric energy, energy expenditure is stablized, and the time in drying course more than power consumption is daily evening, and at this time
The electricity charge are also period minimum in running cost.In drying course of the present invention, what is be externally discharged only has condensed water and does
Cold air, on surrounding enviroment without influence, zero-emission no pollution.For reducing, drying cost, prevent the pollution of the environment has the present invention
Significance.
Since air source heat pump is sent again to the object being oven-dried by condenser by the heat in evaporator draw air
At material, and nonelectrical energy is directly converted to thermal energy by generating heat after resistance, therefore its efficiency is dried far above traditional electrical heating type
Room is the 1/4 of traditional baking chamber use cost --- 1/2.
The present invention can compare outdoor temperature and cold scattering room temperature, using the higher gas heating evaporation device of temperature, thus
Compressor horsepower is reduced, is played the role of energy-efficient.It is not air-tight state at this when front and back forced convertion wind turbine is turned off,
It is to be connected to the gap of ambient air, therefore by wind after the submitting of outer circulation air-valve, surrounding air is natural between the flabellum of wind turbine
Can cold scattering channel be entered by front and back forced convertion wind turbine under the action of negative pressure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the A-A direction views of Fig. 1；
Fig. 3 is the B-B direction view of Fig. 1；
Fig. 4 is the control principle drawing of the present invention.
Arrow direction in Fig. 1 to Fig. 3 is the airflow direction at this.
Specific implementation mode
As shown in Figures 1 to 4, the wet continuous agriculture spy flowing water heat pump drying line of sectional temperature-controlled control of the invention includes heat pump system
And baking room, baking room are from top to bottom divided into cold scattering channel 1, heating channel 2 and drying channel 3；Drying channel 3 is equipped with and is used for
By the trolley track for drying trolley 4；It dries trolley 4 and is equipped with driving mechanism；Trolley track and driving mechanism are routine techniques,
It is not shown.
Moving direction to dry trolley 4 is preceding to baking room rear wall is equipped with the charging being connected with drying channel 3
Door 5, baking room front side wall are equipped with the discharge door 6 being connected with drying channel 3；
Baking room rear wall is equipped with the rear air port being connected with cold scattering channel 1, and rear forced convertion wind turbine 7 is equipped at rear air port；
Baking room front side wall is equipped with the preceding air port being connected with cold scattering channel 1, and preceding forced convertion wind turbine 8 is equipped at preceding air port；
Baking room is divided into several drying sections in the longitudinal direction, and the cold scattering channel 1 of adjacent drying section is interconnected, adjacent
The drying channel 3 of drying section is interconnected, and the heating channel 2 of adjacent drying section is spaced apart by partition board 9；
It is equipped with a set of heat pump system in each drying section, heat pump system includes the pressure being connected by circulation successively by refrigerant line
Contracting machine 10, condenser 11, throttle valve 12 and evaporator 13, compressor 10, throttle valve 12 and evaporator 13 form heat pump main frame 33；
Heat pump main frame 33 is located in cold scattering channel 1, and condenser 11 is located in heating channel 2, the heating channel 2 of each drying section rear end
Bottom wall is equipped with return air inlet 14, the connection of return air inlet 14 heating channel 2 and drying channel 3；
Condenser 11 is obliquely installed, and the upper end of condenser 11 is connected with the roof in heating channel 2 and its bottom end and return air inlet 14
The bottom wall in the heating channel 2 of front side is connected；Circulating fan is equipped in the heating channel 2 in the front of condenser 11, at circulating fan
2 bottom wall of heating channel be equipped with drying air inlet 15 for being connected to drying channel 3；
In each drying section, it is equipped in the cold scattering channel 1 of 11 top of condenser and is pumped into for the gas in channel 2 will to be heated
The pressure wet-emitting blower 16 in cold scattering channel 1 forces the air inlet connection heating channel 2 of wet-emitting blower 16；
Baking room is externally provided with outdoor temperature sensor 17；It is respectively equipped with drying temperature in the drying channel 3 of each drying section
Sensor 18 and drying humidity sensor 19；It is respectively equipped with cold scattering temperature sensor 20 in the cold scattering channel 1 of each drying section；
The cycle of the outdoor temperature sensor 17, preceding forced convertion wind turbine 8, rear forced convertion wind turbine 7, each drying section
Wind turbine, drying temperature sensor 18, forces wet-emitting blower 16, drying humidity sensor 19 and cold scattering temperature sensing at compressor 10
Device 20 is connected with an electric control gear 21；
The lower section of evaporator 13 of each drying section is equipped with the drip tray for access condensed water, the drip tray of each drying section with
One diversion pipe 22 is connected, and the end of diversion pipe 22, which is equipped with, is open and stretches out baking room, is equipped with below the end of diversion pipe 22 cold
Condensed water collection case 23.Drip tray is conventional structure, not shown.
In each drying section, the side wall in the heating channel 2 at 11 rear of condenser is equipped with open to atmosphere new for connecting
Wind air door 24.
In each drying section, the circulating fan includes left circulating fan 25 and the setting being arranged in 2 left side of heating channel
Right circulating fan 26 on 2 right side of heating channel, the drying air inlet 15 include the left drying being arranged in 2 left side of heating channel
Air inlet and the right drying air inlet being arranged on the right side of heating channel 2；It is equipped with and uses in the heating channel 2 in 25 left side of left circulating fan
It is equipped in the left wind deflector 27 for guiding air-flow downwards, the heating channel 2 on 26 right side of right circulating fan for air-flow is downward
The right wind deflector 28 of guiding.
In this way so that hot wind can not only improve drying efficiency, but also improve drying more uniformly by the material being oven-dried
The consistency of effect.
It is equipped with inner-outer circulation in each drying section, in cold scattering channel 1 and selects bellows 29, compressor 10 and throttle valve 12
It is arranged in the cold scattering channel 1 outside inner-outer circulation selection bellows 29, evaporator 13 is arranged selects bellows 29 in inner-outer circulation
On side wall, inner-outer circulation selects to be equipped with evaporation fan 30 in bellows 29, and evaporation fan 30 is for leading to the gas in cold scattering channel 1
Pervaporation device 13 is pumped into inner-outer circulation and selects bellows 29；Inner-outer circulation selection bellows 29 are located in the one side wall in cold scattering channel 1
Equipped with interior cycle air-valve 31, inner-outer circulation selects another side wall of bellows 29 to be equipped with for connecting open to atmosphere outer circulation air-valve
32。
The interior cycle air-valve 31 and outer circulation air-valve 32 are solenoid valve；Each interior cycle air-valve 31, each outer circulation air-valve
32, each fresh air air door 24, each left circulating fan 25, each right circulating fan 26 and each evaporation fan 30 are connected with electric control gear 21
It connects.
The electric control gear 21 is microcontroller, it is preferred to use PLC.
The invention also discloses the furnace drying methods for using the above-mentioned sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control, press
Following steps carry out：
Material preparatory process including lasting progress and baking operation；
Material preparatory process is that material to be dried is packed into pallet and shakeout by staff, and pallet is packed into drying trolley 4
In tray supporter；Staff manually goes out the eliminating impurities in material when sabot；Tray supporter is equipped with multilayer；
Staff will dry the time required to trolley 4 is filled and the disengaging of the sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control
Material interval is identical, is divided between input and output material N minutes（N is natural number）；It dries in the tray supporter of trolley 4 and fills the material after shakeouing
Later, staff opens feeding gate 5, and drying trolley 4 is pushed into drying channel 3 along trolley track；
Baking operation is：
Staff rule of thumb sets different drying sections T DEG C different of drying target temperatures；
Driving mechanism driving drying trolley 4 from the front to the back at the uniform velocity by the time of drying channel 3 be drying time；Drying time is
M minutes（M is natural number）；The quantity of drying trolley 4 when drying in drying channel 3 is（M/N）- 1；Trolley 4 is dried to move
Just pass through drying channel 3 within M minutes；Drying time and input and output material interval by staff according to material to be dried the case where（Such as
Type and water content；The more material of water content, drying time is also longer, the lower material variety of target humidity, drying time
Also longer）It is set；Drying time is set as the conventional technical ability of those skilled in the art according to the case where material to be dried.?
On the basis of the disclosure of invention, those skilled in the art are easy to according to a work in drying time and material preparatory process
Make the period（Get out a vehicle material）Required time calculate discharge room every.
After baking operation starts, electric control gear 21 starts the compressor 10, evaporation fan 30, left circulated air of each drying section
Machine 25 and right circulating fan 26, left circulating fan 25 and 26 certain driving air-flow of right circulating fan are in the heating channel 2 of each drying section
It is circulated between drying channel 3, the heat of air-flow absorptive condenser 11 carries out material during circulating herein
Drying；Electric control gear 21 is controlled the temperature in each drying section in T ± 1 DEG C by the start and stop of control compressor 10；
Electric control gear 21 receives the temperature signal that outdoor temperature sensor 17 and each cold scattering temperature sensor 20 transmit, with each cold scattering
The average value of temperature sensor 20 is as the temperature in cold scattering channel 1；When outdoor temperature is more than or equal to the temperature in cold scattering channel 1
When, electric control gear 21 opens outer circulation air-valve 32；When outdoor temperature is less than the temperature in cold scattering channel 1, electric control gear 21 is beaten
Open interior cycle air-valve 31；
Evaporation fan 30 gas in cold scattering channel 1 is pumped into inner-outer circulation selection bellows 29 and by interior cycle air-valve 31 or
Outer circulation air-valve 32 is sent out；Gas is when entering inner-outer circulation and selecting bellows 29 by evaporator 13 to heating evaporation device 13；
It is automatically controlled when electric control gear 21 detects that the relative humidity in drying channel 3 is more than 85% by drying humidity sensor 19
Device 21, which is opened, forces wet-emitting blower 16 and fresh air air door 24, will heat the gas in channel 2 and forces to be pumped into cold scattering channel 1；
Damp-heat air condenses when by evaporator 13, and aromatic substance is dissolved in condensed water and passes through diversion pipe 22 with condensed water
It flow in condensed water collecting box 23；It 50% or is kept constant after ten minutes when the relative temperature in drying channel 3 is less than, it is automatically controlled
Device 21, which is closed, forces wet-emitting blower 16 and fresh air air door 24；
Every N minutes, staff opened a feeding gate 5 and discharge door 6, is sent into a new drying trolley 4 and sends out one
Drying after drying trolley 4.
When the temperature in cold scattering channel 1 is less than 7 DEG C of outdoor temperature and the duration reaches 10 minutes, electric control gear 21
Preceding forced convertion wind turbine 8 and rear forced convertion wind turbine 7 are opened, outdoor air is sent into cold scattering channel 1 by rear forced convertion wind turbine 7,
Preceding forced convertion wind turbine 8 sends out the gas in cold scattering channel 1, to carry out forced ventilation to cold scattering channel 1.
Forced ventilation can enable the cold at each evaporator 13 to avoid low-temperature condition is in cold scattering channel 1 for a long time
It is enough more quickly to distribute, and play the role of reducing by 10 power of compressor.
The quantity of drying trolley 4 when drying in drying channel 3 is（M/N）- 1, drying can be improved to the greatest extent
The utilization rate in channel 3, and prevent from trolley quantity excessive and do not stop to move to cause discharge door 6 that can not close.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Still can the present invention be modified or be waited
With replacing, without departing from the spirit or scope of the invention, or any substitutions, the power in the present invention should all be covered
In sharp claimed range.
Claims (7)
1. the sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control, it is characterised in that：Including heat pump system and baking room, drying
Room is from top to bottom divided into cold scattering channel, heating channel and drying channel；Drying channel is equipped with for by drying the small of trolley
Track road；It dries trolley and is equipped with driving mechanism；
Moving direction to dry trolley is preceding to baking room rear wall is equipped with the feeding gate being connected with drying channel, dries
Stove room front side wall is equipped with the discharge door being connected with drying channel；
Baking room rear wall is equipped with the rear air port being connected with cold scattering channel, and rear forced convertion wind turbine is equipped at rear air port；It dries
Stove room front side wall is equipped with the preceding air port being connected with cold scattering channel, and preceding forced convertion wind turbine is equipped at preceding air port；
Baking room is divided into several drying sections in the longitudinal direction, and the cold scattering channel of adjacent drying section is interconnected, adjacent
The drying channel of drying section is interconnected, and the heating channel of adjacent drying section is come by baffle interval；
It is equipped with a set of heat pump system in each drying section, heat pump system includes the pressure being connected by circulation successively by refrigerant line
Contracting machine, condenser, throttle valve and evaporator, compressor, throttle valve and evaporator form heat pump main frame；Heat pump main frame is located at cold scattering
In channel, condenser is located in heating channel, and the heating channel bottom wall of each drying section rear end is equipped with return air inlet, and return air inlet connects
Logical heating channel and drying channel；
Condenser is obliquely installed, the upper end of condenser be connected with the roof in heating channel and its bottom end with it is on front side of return air inlet plus
The bottom wall of the passage of heat is connected；Circulating fan, the heating channel floor at circulating fan are equipped in heating channel in front of condenser
Wall is equipped with the drying air inlet for being connected to drying channel；
It is equipped in each drying section, in the cold scattering channel above condenser and is pumped into cold scattering for the gas in channel will to be heated
The pressure wet-emitting blower in channel forces the air inlet of wet-emitting blower to be connected to heating channel；
Baking room is externally provided with outdoor temperature sensor；Drying temperature sensing is respectively equipped in the drying channel of each drying section
Device and drying humidity sensor；It is respectively equipped with cold scattering temperature sensor in the cold scattering channel of each drying section；
The circulated air of the outdoor temperature sensor, preceding forced convertion wind turbine, rear forced convertion wind turbine, each drying section
Machine, compressor force wet-emitting blower, drying temperature sensor, drying humidity sensor and cold scattering temperature sensor electric with one
Control device is connected；
It is equipped with the drip tray for access condensed water below the evaporator of each drying section, the drip tray of each drying section is with one
Diversion pipe is connected, and the end of diversion pipe, which is equipped with, is open and stretches out baking room, and condensation water collection is equipped with below the end of diversion pipe
Case.
2. the sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control according to claim 1, it is characterised in that：It is described each
In drying section, the side wall in the heating channel at condenser rear is equipped with for connecting open to atmosphere fresh air air door.
3. the sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control according to claim 1, it is characterised in that：Each drying
In section, the circulating fan includes the right side that the left circulating fan on the left of heating channel is arranged and is arranged on the right side of heating channel
Circulating fan, the drying air inlet include that the left drying air inlet being arranged on the left of heating channel and setting are right in heating channel
The right drying air inlet of side；The left wind deflector for guiding air-flow downwards is equipped in heating channel on the left of left circulating fan,
The right wind deflector for guiding air-flow downwards is equipped in heating channel on the right side of right circulating fan.
4. the sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control according to any one of claim 1 to 3, feature
It is：Inner-outer circulation is equipped in each drying section, in cold scattering channel selects bellows, compressor and throttle valve to be arranged inside and outside
In cold scattering channel outside cycle selection bellows, evaporator is arranged on the side wall that inner-outer circulation selects bellows, inner-outer circulation choosing
It selects and is equipped with evaporation fan in bellows, evaporation fan is used to the gas in cold scattering channel being pumped into inner-outer circulation selection by evaporator
Bellows；Inner-outer circulation selection bellows are located at the one side wall in cold scattering channel and are equipped with interior cycle air-valve, and inner-outer circulation selects bellows
Another side wall be equipped with for connecting open to atmosphere outer circulation air-valve.
5. the sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control according to claim 4, it is characterised in that：In described
It is solenoid valve to recycle air-valve and outer circulation air-valve；
Each interior cycle air-valve, each outer circulation air-valve, each fresh air air door, each left circulating fan, each right circulating fan and respectively evaporate wind
Machine is connected with electric control gear.
6. using the furnace drying method of the wet continuous agriculture spy flowing water heat pump drying line of sectional temperature-controlled control described in claim 5, feature
It is to carry out according to the following steps：
Material preparatory process including lasting progress and baking operation；
Material preparatory process is that material to be dried is packed into pallet and shakeout by staff, and pallet is packed into the support of drying trolley
In disc carrier；Staff manually goes out the eliminating impurities in material when sabot；Tray supporter is equipped with multilayer；
Staff will dry the time required to trolley is filled and the disengaging of the sectional temperature-controlled wet continuous agriculture spy flowing water heat pump drying line of control
Material interval is identical, is divided between input and output material N minutes；It dries after filling the material after shakeouing in the tray supporter of trolley, work people
Member opens feeding gate, and drying trolley is pushed into drying channel along trolley track；
Baking operation is：
Staff rule of thumb sets different drying sections T DEG C different of drying target temperatures；
Driving mechanism driving drying trolley from the front to the back at the uniform velocity by the time of drying channel be drying time；Drying time is M
Minute；The quantity of drying trolley when drying in drying channel is（M/N）- 1；Drying trolley moves M minutes passes through baking just
Dry passage；Drying time and input and output material interval are set by staff according to the case where material to be dried；
After baking operation starts, electric control gear starts compressor, evaporation fan, left circulating fan and the right cycle of each drying section
Wind turbine, left circulating fan and right circulating fan the certain driving air-flow recycle stream between the heating channel of each drying section and drying channel
Dynamic, the heat of air-flow absorptive condenser dries material during circulating herein；Electric control gear is pressed by controlling
The start and stop of contracting machine control the temperature in each drying section in T ± 1 DEG C；
Electric control gear receives the temperature signal that outdoor temperature sensor and each cold scattering temperature sensor transmit, and is passed with each cold scattering temperature
The average value of sensor is as the temperature in cold scattering channel；When outdoor temperature is more than or equal to the temperature in cold scattering channel, automatically controlled dress
It sets and opens outer circulation air-valve；When outdoor temperature is less than the temperature in cold scattering channel, electric control gear opens interior cycle air-valve；
Gas in cold scattering channel is pumped into inner-outer circulation selection bellows and passes through interior cycle air-valve or outer circulation by evaporation fan
Air-valve is sent out；Gas is when entering inner-outer circulation and selecting bellows by evaporator to heating evaporation device；
When electric control gear detects that the relative humidity in drying channel is more than 85% by drying humidity sensor, electric control gear
It opens and forces wet-emitting blower and fresh air air door, the gas in channel will be heated and force to be pumped into cold scattering channel；Damp-heat air is logical
It is condensed when pervaporation device, aromatic substance is dissolved in condensed water and flow to condensed water collecting box by diversion pipe with condensed water
In；When the relative temperature in drying channel is less than 50% or keeps constant after ten minutes, electric control gear, which is closed, forces wet-emitting blower
And fresh air air door；
Every N minutes, staff opened a feeding gate and discharge door, is sent into a new drying trolley and sends out a baking
Drying trolley after dry.
7. furnace drying method according to claim 6, it is characterised in that：When the temperature in cold scattering channel is less than outdoor temperature 7
DEG C and duration when reaching 10 minutes, electric control gear opens preceding forced convertion wind turbine and rear forced convertion wind turbine, rear pressure
Outdoor air is sent into cold scattering channel by convection flow fan, and preceding forced convertion wind turbine sends out the gas in cold scattering channel, to dissipating
Cold passage carries out forced ventilation.
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| CN201810687941.5A CN108800875B (en) | 2018-06-28 | 2018-06-28 | Sectional temperature-control humidity-control continuous special-flow water heat pump drying line and drying method |
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| CN201810687941.5A CN108800875B (en) | 2018-06-28 | 2018-06-28 | Sectional temperature-control humidity-control continuous special-flow water heat pump drying line and drying method |
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| CN109813095A (en) * | 2019-03-18 | 2019-05-28 | 青岛大学 | Segmented closely closes Analysis of Heat Pump Drying System |
| CN109916161A (en) * | 2019-04-17 | 2019-06-21 | 庸博（厦门）电气技术有限公司 | It is classified drying system |
| CN110645233A (en) * | 2019-09-26 | 2020-01-03 | 广州纯元科技有限公司 | Hydraulic pressure station that radiating effect is good convenient to remove |
| CN114294909A (en) * | 2021-12-28 | 2022-04-08 | 中山市爱美泰电器有限公司 | Rice flour/noodle drying equipment |
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|---|---|
| CN108800875B (en) | 2023-11-28 |
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