CN108955106A - A kind of heat accumulation drying system and method for timber - Google Patents
A kind of heat accumulation drying system and method for timber Download PDFInfo
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- CN108955106A CN108955106A CN201810518291.1A CN201810518291A CN108955106A CN 108955106 A CN108955106 A CN 108955106A CN 201810518291 A CN201810518291 A CN 201810518291A CN 108955106 A CN108955106 A CN 108955106A
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- heat accumulation
- drying
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- 238000009825 accumulation Methods 0.000 title claims abstract description 61
- 238000001035 drying Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims description 11
- 239000002023 wood Substances 0.000 claims abstract description 28
- 239000012782 phase change material Substances 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 239000002918 waste heat Substances 0.000 claims abstract description 5
- 238000004146 energy storage Methods 0.000 claims description 50
- 239000011232 storage material Substances 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 6
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 5
- 239000000374 eutectic mixture Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 238000010924 continuous production Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 230000001172 regenerating effect Effects 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- 235000021355 Stearic acid Nutrition 0.000 description 4
- 239000010962 carbon steel Substances 0.000 description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000008117 stearic acid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 235000017281 sodium acetate Nutrition 0.000 description 3
- 229940087562 sodium acetate trihydrate Drugs 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 150000004702 methyl esters Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- RLAHWVDQYNDAGG-UHFFFAOYSA-N Methanetriol Chemical compound OC(O)O RLAHWVDQYNDAGG-UHFFFAOYSA-N 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- VDGJOQCBCPGFFD-UHFFFAOYSA-N oxygen(2-) silicon(4+) titanium(4+) Chemical compound [Si+4].[O-2].[O-2].[Ti+4] VDGJOQCBCPGFFD-UHFFFAOYSA-N 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- AYRVGWHSXIMRAB-UHFFFAOYSA-M sodium acetate trihydrate Chemical compound O.O.O.[Na+].CC([O-])=O AYRVGWHSXIMRAB-UHFFFAOYSA-M 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- 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
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to a kind of drying of wood industries, and in particular to a kind of accumulation of heat drying system and its drying means for timber；Meet the demand of timber industry drying process；Including accumulation of heat drying device, blower, wood drying kiln, condenser；The invention has the following advantages: using new structure regenerative apparatus；Including using novel heat accumulating phase change material, using multiple duct and ladder phase-change material heat preservation technology, give up traditional thermal insulation material, using novel heat exchange structure；Waste heat is recycled, and the heat that hothouse ventilation excludes carries out hot cold wind exchange by condenser, and sirocco reclamation enters regenerative apparatus, is used；It using paddy electricity accumulation of heat, can guarantee continuous production, while be industry energy conservation and creating economic benefit.
Description
Technical field
The present invention relates to drying of wood industries, and in particular to a kind of for the heat accumulation drying system of timber and its drying side
Method.
Background technique
Currently, the drying of wood is the energy consumption rich and influential family of wood processing enterprise, account for about the 40% of woodwork production total energy consumption；
70%14J is one of the main object of the sector energy-saving and emission-reduction；Traditional steaming of wood accounts for about 80% or more in China,
Existing main problem has: 1) dry energy consumption is big, and coal and oil boiler is currently mainly used, and pollution environment is serious.Country simultaneously
Restrictive target is proposed to energy-saving and emission-reduction, hot water needed for enterprise's heated drying, steam etc. gradually start inaccurate burning coal, part
Region has limited biomass fuel.Enterprise must coal change electricity, gas or thermoelectric factory purchase needed for hot water and steam, so
The energy expenditure of enterprise is higher and higher；2) the ventilation heat loss of hothouse inlet and outlet is very big, and heat recovery rate is low.
Summary of the invention
In view of the above-mentioned problems, being met the present invention provides a kind of novel heat accumulation drying system and method for timber
The demand of timber industry drying process；Including following content: a kind of heat accumulation drying system for timber, the heat accumulation are dry
System includes: heat accumulation drying device, blower, wood drying kiln, condenser；
The blower includes blower one, blower two；The heat accumulation drying device, blower two, wood drying kiln, condensation
Device is sequentially connected with blower one by pipeline, and circulation is formed；
The condenser includes condenser cold air inlet, condenser air inlet one, condenser air outlet one, condenser
Air outlet two, condensation-water drain；The condenser air inlet one is connected with wood drying kiln；The condenser air outlet two
It is connected with blower one；Condenser is entered by condenser air inlet one by the wind of wood drying system, extraneous cold wind passes through cold
Condenser cold air inlet enters condenser, and two strands of wind form convection current in condenser, and condensation effect is more preferable；Uncooled wind is logical
It crosses condenser air outlet one and is directly entered wood drying system and be dried, the wind that dry requirement is reached in whole system will be formed
One circulation, greatly carries out thermal energy utilization, saves energy.
Preferably, valve five is installed at the condenser air outlet one in the heat accumulation drying system for timber,
Valve seven is installed at condensation-water drain, valve four is installed at cold wind import, valve six is installed at condenser air outlet two,
It is connected by installing valve and subsequent temperature sensor in each opening with control system, system can be real-time monitored
In the state of each device and the effect of the drying of wood, realize at every moment to the control of whole system, realize using energy source
Maximization.
Preferably, the heat accumulation drying device in the heat accumulation drying system for timber includes: crust of the device, control
System, air inlet two, air duct, heat accumulation room, heat exchanger, heater, heat release room and air outlet three；
The heater is mounted in heat accumulation room；The heat exchanger half is in heat accumulation room, and half is in Heat Room；
Energy storage material one is equipped in the heat accumulation room；
The heat exchanger is heat pipe heat exchanging, and the heat pipe is fitted in fin in parallel constitutes heat exchanger, heat exchange effect
It is very good, and thermal losses is small；
The crust of the device includes shell one and shell two；The air duct includes the first air duct and the second air duct；
The first air duct is formed between the shell one and shell two；The shell two and heat accumulation room, heat release room it is outer
The second air duct is formed between wall；
It is respectively provided in the shell one, shell two as energy storage material two and energy storage material three；
The control system includes PLC programmable controller, temperature sensor, thermostat valve, flow valve；
The energy storage material one is the eutectic mixture of pentaerythrite and neopentyl glycol, the two mass ratio are as follows: 2:1~
5:1；Energy storage material two is shaped composite phase-change material, and phase transition temperature is 50~60 DEG C；Energy storage material three is sizing composite phase-change
Material, phase transition temperature are 8~12 DEG C；The preparation process of energy storage material one: pentaerythrite and neopentyl glycol example in mass ratio are added
Enter in mixing machine, heating stirring to whole fusings, is cooled and shaped；The manufacture craft of energy storage material two: by stearic acid, acetate trihydrate
Sodium, silica add in mixing machine according to certain mass ratio, and heating material is heated to 70 DEG C, cooling and shaping.Three's mass ratio:
Silica accounts for the 50% of gross mass, and stearic acid and Sodium acetate trihydrate mass ratio are 1:5~1:1；The production of energy storage material three
Technique: by epoxy aliphatic acid methyl ester and silica according in mass ratio 1:1 investment mixing machine, heating stirring temperature to 50 DEG C,
Stop, cooling and shaping is energy storage material three.
Energy storage material heat accumulation effect by the production method production in the present invention is very good, phase transition temperature and heat accumulation energy
Power is very suitable to the heat energy intensity needed in wood drying system；
Preferably, valve one is installed at the air inlet two in the heat accumulation drying system for timber；Described
The end in air duct is equipped with valve two；Valve three is installed at the air outlet three；
The valve one, valve two, valve three, valve four, valve five, valve six and valve seven with control system phase
Even.
Preferably, the heat accumulation indoor location in the heat accumulation drying system for timber has temperature sensor one, institute
The exit for the blower two stated is equipped with temperature sensor two, and temperature sensor three, institute are equipped in the drying of wood room
Temperature sensor four is installed at the air outlet one stated, temperature sensor five is installed at the air outlet two；
Five temperature sensors are connected with control system.
It is connected by setting temperature sensor and valve and with control system, can at every moment monitors system
Operating status, the control system in the present invention be it is traditional can set in real time control temperature, flow and by setup parameter into
The control system that row is adjusted in real time；Real-time status in the drying system can completely be fed back.
The energy storage dry-heat air provides the heat resistant material in the heat exchanger in device as one in copper or stainless steel
Kind；The fin is carbon steel or aluminum sheet structure, and fin coats heat pipe in parallel；Spacing is 10~200mm, wind between the fin
The angle that fin and device box are formed is arranged in the inlet and outlet in road, and each fin one end and device box closing connect, separately
One end forms the heat exchange air duct of " S " there are opening between fin；The energy storage dry-heat air is provided outside the device in device
Shell is one of stainless steel, carbon steel or engineering plastics；The width that the energy storage dry-heat air provides the air duct in device is
10mm~100mm, the energy storage material layer of the crust of the device is with a thickness of 10mm~100mm；Preferably, the energy storage is dry
Hot wind provide energy storage material one in device, energy storage material two, energy storage material three phase transition temperature successively from high to low；The storage
Energy material one and two temperature difference of energy storage material are 50 DEG C~150 DEG C；The energy storage material two and three temperature difference of energy storage material be 30 DEG C~
80℃。
A kind of method for drying wood, including following two stages:
The heat accumulation stage at night:
Using night paddy electricity, heater closes valve 1, valve 2, valve 3. and is heated to 150 degree of stoppings；
Daytime exothermic phase:
Set temperature T2, Open valve and blower, hot wind enter hothouse kiln dried wood, the hot wind containing certain humidity into
Enter condenser, through air-cooled, become cold wind and water discharge, condenser lower end cold wind enters, become hot wind through heat exchange, through blower into
Enter in heat-storing device, waste heat is recycled；When detecting that dry room temperature T2 reaches technique requirement temperature, stop blower；It is complete
Heat accumulation beauteously is carried out using paddy electricity night, heat release on daytime is dry, greatly improves using energy source effect.
The progress point of the invention compared to the prior art is:
1, using new structure heat-storing device.Including being kept the temperature using energy storage material, using multiple duct and ladder phase-change material
Technology gives up traditional thermal insulation material, using novel heat exchange structure.
Energy storage material: 150 degree of phase transition temperature, using polyol blends, such as pentaerythrite and orthoformic acid mixing
Object.
Second level air duct is arranged in heat-storing device surface, and one side heat is collected into heat release room, while reducing heat preservation
Materials'use.It is kept the temperature using phase transition temperature stairway degression phase-change material, collects extra heat, heat absorption is slow, heat insulation effect
It is good.
Using exchange system of the heat pipe in conjunction with fin, do not need traditional pump operation, save pump operation expense and
Maintenance cost." S " type heat exchange structure by design, can transmit heat, and efficiently exchange heat automatically, and system is high
Effect is reliable.
2, waste heat is recycled.The heat that hothouse ventilation excludes carries out hot cold wind exchange, sirocco reclamation by condenser
Into heat-storing device, it is used.
3, it using paddy electricity heat accumulation, can guarantee continuous production, while be industry energy conservation and creating economic benefit.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is heat accumulation drying system overall structure diagram of the invention；
Fig. 2 is heat accumulation drying device structural schematic diagram of the invention.
Label declaration: 1, heat accumulation drying device；101, air inlet two；102, air inlet three；103, air outlet three；104, outer
Shell one；105, the first air duct；106, shell two；107, the second air duct；108, Heat Room；109, heat exchanger；110, heat accumulation room；
111, heater；112, control system；21, blower two；22, blower one；3, wood drying kiln；4, condenser；41, condenser
Cold air inlet；42, condenser air outlet two；43, condenser air outlet one；44, condenser air inlet one；45, condensed water goes out
Mouthful；51, valve one；52, valve two；53, valve three；54, valve four；55, valve five；56, valve six；57, valve seven；61,
Temperature sensor one；62, temperature sensor two；63, temperature sensor three；64, temperature sensor four；65, temperature sensor
Five；
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, following embodiment be explanation of the invention and
The invention is not limited to following embodiments.
Embodiment:
As shown in Figure 1 and Figure 2, the present invention provides a kind of heat accumulation drying system for timber, the heat accumulation drying system packets
It includes: heat accumulation drying device 1, blower, wood drying kiln 3, condenser 4；Blower includes blower 1, blower 2 21；Heat accumulation is dry
Device 1, blower 2 21, wood drying kiln 3, condenser 4 and blower 1 are sequentially connected by pipeline, form circulation；Condenser 4
Including condenser cold air inlet 41, condenser air outlet 2 42, condenser air inlet 1, condenser air outlet 1 are cold
Condenser condensation-water drain 45；Condenser air inlet 1 is connected with wood drying kiln 3；Air outlet 3 103 and 2 21 phase of blower
Even；Valve 4 54 is installed at the condenser cold air inlet 41 of the condenser being used in the heat accumulation drying system of timber, it is cold
Valve 7 57 is installed at condenser condensation-water drain 45, valve 6 56 is installed at condenser air outlet 2 42；The dry dress of heat accumulation
Set 1 include: crust of the device, control system 112, air inlet 2 101, air duct, heat accumulation room 110, heat exchanger 109, heater 111,
Heat Room 108 and air outlet 3 103；Heater 111 is mounted in heat accumulation room 110；109 half of heat exchanger is in heat accumulation room 110
In, half is in Heat Room 108；110 are equipped with energy storage material one in heat accumulation room, and energy storage material one is pentaerythrite and neopentyl glycol
Eutectic mixture, the two mass ratio are as follows: 2:1~5:1；Energy storage material two is shaped composite phase-change material, phase transition temperature 50
~60 DEG C；Energy storage material three is shaped composite phase-change material, and phase transition temperature is 8~12 DEG C；The preparation process of energy storage material one:
Pentaerythrite and neopentyl glycol example in mass ratio are added to the mixer, heating stirring to whole fusings, are cooled and shaped；Heat exchanger
109 be heat pipe heat exchanging, and heat pipe is fitted in fin constitutes heat exchanger in parallel；Crust of the device includes shell 1 and shell two
106；Air duct includes the first air duct 105 and the second air duct 107；The first air duct 105 is formed between shell 1 and shell 2 106；
Shell 2 106 and heat accumulation room 110, Heat Room 108 outer wall between form the second air duct 107；In shell 1, shell 2 106
It is respectively provided with energy storage material two and energy storage material three, the manufacture craft of energy storage material two: by stearic acid, Sodium acetate trihydrate, dioxy
SiClx adds in mixing machine according to certain mass ratio, and heating material is heated to 70 DEG C, cooling and shaping.Three's mass ratio: titanium dioxide
Silicon accounts for the 50% of gross mass, and stearic acid and Sodium acetate trihydrate mass ratio are 1:5~1:1；The manufacture craft of energy storage material three: will
According in mass ratio 1:1 investment mixing machine, heating stirring temperature stops to 50 DEG C, cold for epoxy aliphatic acid methyl ester and silica
But sizing is energy storage material three；Control system 112 includes PLC programmable controller, temperature sensor, thermostat valve, flow
Valve；Valve 1 is installed at air inlet 2 101；The end in air duct is equipped with valve 2 52；Valve is installed at air outlet 3 103
Door 3 53；Valve 1, valve 2 52, valve 3 53, valve 4 54, valve 5 55, valve 6 56 and valve 57 with control
System 112 is connected.
Heat accumulation indoor location has temperature sensor 1, controls temperature at 100 DEG C~150 DEG C by control system；Blower
Two exit is equipped with temperature sensor 2 62, controls temperature at 70 DEG C~90 DEG C；Temperature biography is installed in drying of wood room
Sensor 3 63 controls temperature at 70 DEG C~80 DEG C；Temperature sensor 4 64 is installed at air outlet one, is detected by condenser
For the leaving air temp of circulation, temperature sensor 5 65 is installed at air outlet two；Five temperature sensors are and control system
It is connected, it is stainless steel that energy storage dry-heat air, which provides the heat resistant material in the heat exchanger in device,；Fin is carbon steel, and fin wraps in parallel
Cover heat pipe；Spacing is 10~200mm between fin, and the angle that fin and device box are formed is arranged in the inlet and outlet in air duct,
Each fin one end and device box closing connect, and the other end forms the heat exchange air duct of " S " there are opening between fin；Institute
It is one of stainless steel, carbon steel or engineering plastics that the energy storage dry-heat air stated, which provides the crust of the device in device,；The storage
The width that energy dry-heat air provides the air duct in device is 80mm, and the energy storage material layer of crust of the device is with a thickness of 50mm；Energy storage is dry
Scorching wind provide energy storage material one in device, energy storage material two, energy storage material three phase transition temperature successively from high to low；It is described
Energy storage material one and two temperature difference of energy storage material are 50 DEG C~150 DEG C；The energy storage material two is 30 DEG C with three temperature difference of energy storage material
~80 DEG C.
When the system dry operation, including two stages:
The heat accumulation stage at night:
Using night paddy electricity, heater closes valve 1, valve 2, valve 3. and is heated to 150 degree of stoppings；
Daytime exothermic phase:
Set temperature T2, Open valve and blower, hot wind enter hothouse kiln dried wood, the hot wind containing certain humidity into
Enter condenser, through air-cooled, become cold wind and water discharge, condenser lower end cold wind enters, become hot wind through heat exchange, through blower into
Enter in heat-storing device, waste heat is recycled；When detecting that dry room temperature T2 reaches technique requirement temperature, stop blower.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different.The equivalent or simple change that all structure, feature and principles described according to the invention patent design are done, is wrapped
It includes in the scope of protection of the patent of the present invention.Those skilled in the art can be to described specific implementation
Example is done various modifications or additions or is substituted in a similar manner, and without departing from structure of the invention or surmounts this
Range as defined in the claims, is within the scope of protection of the invention.
Claims (6)
1. a kind of heat accumulation drying system for timber, it is characterised in that: the heat accumulation drying system includes: the dry dress of heat accumulation
It sets, blower, wood drying kiln, condenser；
The blower includes blower one, blower two；The heat accumulation drying device, blower two, wood drying kiln, condenser with
Blower one is sequentially connected by pipeline, forms circulation；
The condenser includes condenser air inlet one, condenser air outlet one, condenser air outlet two, cool condenser cold wind
Air inlet, condensation-water drain；The condenser air inlet one is connected with wood drying kiln；The condenser air outlet two with
Blower one is connected.
2. the heat accumulation drying system according to claim 1 for timber, it is characterised in that: the condenser cold wind into
Valve four is installed at air port, valve five is installed at condenser air outlet one, valve is installed at condenser condensation-water drain
Seven, valve six is installed at condenser air outlet two.
3. the heat accumulation drying system according to claim 2 for timber, it is characterised in that: the heat accumulation drying device
Include: crust of the device, control system, air inlet two, air inlet three, air duct, heat accumulation room, heat exchanger, heater, heat release room with go out
Air port three；
The heater is mounted in heat accumulation room；The heat exchanger half is in heat accumulation room, and half is in Heat Room；It is described
Heat accumulation room in be equipped with energy storage material one；
The heat exchanger is heat pipe heat exchanging, and the heat pipe is fitted in fin in parallel constitutes heat exchanger；
The crust of the device includes shell one and shell two；The air duct includes the first air duct and the second air duct；
The first air duct is formed between the shell one and shell two；The shell two and heat accumulation room, heat release room outer wall it
Between form the second air duct；
Energy storage material two and energy storage material three are respectively provided in the shell one, shell two；
The control system includes PLC programmable controller, temperature sensor, thermostat valve, flow valve；
The energy storage material one is the eutectic mixture of pentaerythrite and neopentyl glycol, the two mass ratio are as follows: 2:1~5:1；Storage
Energy material two is shaped composite phase-change material, and phase transition temperature is 50~60 DEG C；Energy storage material three is shaped composite phase-change material, phase
Temperature is 8~12 DEG C.
4. the heat accumulation drying system according to claim 3 for timber, it is characterised in that: pacify at the air inlet two
Equipped with valve one；The end in the air duct is equipped with valve two；Valve three is installed at the air outlet three；
The valve one, valve two, valve three, valve four, valve five, valve six are connected with control system with valve seven.
5. the heat accumulation drying system according to claim 4 for timber, it is characterised in that: the heat accumulation indoor location
There is temperature sensor one, the exit of the blower two is equipped with temperature sensor two, installs in the drying of wood room
There is temperature sensor three, temperature sensor four is installed at the air outlet one, temperature is installed at the air outlet two
Sensor five；
Five temperature sensors are connected with control system.
6. a kind of method for drying wood, using the heat accumulation drying system for being used for timber described in the claims 5, feature exists
In including following two stages:
The heat accumulation stage at night:
Using night paddy electricity, heater closes valve 1, valve 2, valve 3. and is heated to 150 degree of stoppings；
Daytime exothermic phase:
For set temperature T2 between 70 DEG C~90 DEG C, Open valve and blower, hot wind enter hothouse kiln dried wood, containing certain
The hot wind of humidity enters condenser, through air-cooled, becomes cold wind and water discharge, condenser lower end cold wind enters, becomes through heat exchange
Hot wind enters in heat-storing device through blower, and waste heat is recycled；When detecting that dry room temperature T2 reaches technique and require temperature
When, stop blower.
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Application publication date: 20181207 |