CN2308494Y - Wood vacuum drying equipment - Google Patents
Wood vacuum drying equipment Download PDFInfo
- Publication number
- CN2308494Y CN2308494Y CN 97247475 CN97247475U CN2308494Y CN 2308494 Y CN2308494 Y CN 2308494Y CN 97247475 CN97247475 CN 97247475 CN 97247475 U CN97247475 U CN 97247475U CN 2308494 Y CN2308494 Y CN 2308494Y
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- cylindrical shell
- vacuum
- drying
- skull
- timber
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Abstract
The utility model relates to a wood vacuum drying device, comprising a drier main body and a head cover. The drier main body is a horizontal and cylindrical steel barrel body, the outer wall of the drier main body is provided with a plurality of reinforcing rings, the inner side of the drier main body is provided with an electric axial flow fan, a plurality of groups of fin slice heaters and a spraying and steaming device which are connected by a magnetic shaft coupling and a vacuum guiding device using the same interface with the spraying and steaming device, the vacuum guiding device is connected with a vacuum obtaining system, the barrel body is provided with a vacuum pressure gauge, a thermometer and a safety valve, the inner side of the bottom of the barrel body is provided with a guideway, and the head cover is engaged with the barrel body. The utility model has the advantages of shorter drying cycle, better quality, lower energy consumption, high safety and longer device life.
Description
The utility model belongs to drying equipment, is particularly useful for the drying of timber.
Timber all will be through certain dry run to avoid the dry and cracked and warpage of timber before processing and fabricating.Two kinds of drying of wood modes have appearred in China in drying of wood field at present, promptly traditional conventional kiln drying (kd) and advanced batch (-type) vacuum drying.Traditional conventional kiln drying (kd), because operation (drying) cycle is long, thermal waste and energy consumption is increased, and owing in timber drying, to programming rate, rate of drying etc. cannot control effectively and to form wood drying quality difference etc. former thereby eliminated gradually.And the batch (-type) vacuum drying, as the described Wood Vacuum Drying Plant of Chinese patent CN87205548U, though it is all advanced in conventional kiln drying (kd) on arid cycle and dry mass, but because it adopts humid air as drying medium in dry run, so can't avoid the corrosion of humid air to drying equipment, this will shorten the service life of equipment, and difficult seasoned wood carried out when long-time dry, because the influence of humid air also might make timber go mouldy.In addition, the dry mass of timber also depends on the humidity of drying medium to a great extent, in the batch (-type) vacuum drying, owing to adopt humid air as drying medium, the humidity of this medium under vacuum is actually unmeasured (particularly under temperature conditions more than 60 ℃), so in timber drying, when spraying the steaming operation for alleviating the inner wet stress of timber, the quantity that spray is steamed is uncontrollable, and can only decide with operator's experience, therefore, the dry mass of timber also is difficult to guarantee.Simultaneously, in spray steaming process, the pressure of inner barrel will raise, owing to do not adopt reliable automatic decompression device, in case misoperation obviously raises when surpassing the internal design pressure power of cylindrical shell the pressure of inner barrel, cylindrical shell will have the danger of blasting, and security is not high.Because the mode that aforementioned Wood Vacuum Drying Plant adopts steam to heat outside the drying machine body wall makes the subsidiary part heat of steam distribute to outside air from hoop shape heater, has wasted the part energy.Same owing to be to adopt outer dress mechanical seal with outward leakage between the motor in the axial flow blower that be equipped with the cylindrical shell inboard of aforementioned Wood Vacuum Drying Plant and the barrel outside, sealing is not really high, make the vacuum in the cylindrical shell not high, thereby influence the rate of drying and the quality of timber.
The purpose of this utility model is to provide the vacuum drying of wood equipment that a kind of arid cycle is shorter, dry mass better, energy consumption is lower, service life of equipment is longer and safe and reliable.
The technical solution of the utility model is: the vacuum drying of wood equipment with drier body, skull and heater, doing quick-fried device body is a horizontal cylindrical steel cylindrical shell, be welded with some reinforcing rings on the cylinder body outer wall, and be equipped with heat-insulation layer on skull and the cylinder body outer wall, be provided with some electric drive axle flow fans in the cylindrical shell, aerofoil fan is positioned at the both sides on the tubular axis direction, and aerofoil fan adopts magnetic coupling to be connected with the motor in the barrel outside; Cylindrical shell is provided with pressure vacuum gauge, safety interlocking, drying medium temperature measuring set, this core temperature and water cut meter, safety valve (automatic decompression device) and sealed interface; The unit of steam jet that is provided with in the cylindrical shell is a pipeline that has a lot of apertures, one end passes and is welded on the barrel, cylindrical shell is provided with vacuum and derives jockey, and interface and unit of steam jet interface that vacuum derives jockey unite two into one, and the distributing pipe bottom cylindrical shell links to each other, have a lot of apertures on the distributing pipe, and distributing pipe is connected with two valves respectively, one of them valve by pipeline with link to each other by the vacuum acquiring system that pipeline connects and composes by vavuum pump, water tank, water circulating pump, another valve is connected with jet chimney by pipeline.The inboard of cylindrical shell bottom is provided with guide rail; Heater is located in the cylindrical shell and is many group fin heaters, and two interfaces of heater are connected with steam inlet and condensation-water drain respectively; Skull can be one, also can be two, lay respectively at the cylindrical shell two ends, wherein the skull of an end is a quick-actuating closure, the other end be fixing ellipsoidal head, or two ends be quick-actuating closure, by being connected with hand decelerator, be evenly equipped with the tooth that is meshed with tooth on the shell flange on the flange of quick-actuating closure between quick-actuating closure and the cylindrical shell by hanging the pendulous device that handle, lever and swing arm etc. constitute.The cylindrical shell bottom can also be provided with by plurality of movable bearing and a hold-down support.The cylindrical shell that constitutes dry body can be an one, also can be to be welded to each other by some joint steel cylinders to form.
Technique effect of the present utility model is: 1. the required energy consumption of the drying of wood is lower.Because the utility model adopts many group fin heaters, and be arranged in the cylindrical shell, therefore heat exchange all takes place in the incidental net quantity of heat of vapours in cylindrical shell, and hoop shape heater is arranged on outside the wall of cylindrical shell, make subsidiary part heat and the outside air generation heat exchange of vapours in the heater, by contrast, the thermal efficiency of the present utility model is higher, the more favourable preservation heat of heat-insulation layer that adds of cylindrical shell outside makes it to be difficult for scattering and disappearing outside cylindrical shell in addition, therefore correspondingly the required energy consumption of the drying of wood is lower, has saved the energy effectively.2. the drying of wood cycle is shorter.Timber drying comprises two aspects: the evaporation and the moisture of timber top layer moisture move to skin from timber inside.Generally the moisture of timber inside to the top layer move than timber top layer moisture slow evaporation many, the rate of drying that improves timber just must improve timber internal temperature and the moisture gradient that adds summer wood, if but the temperature of timber is too high and moisture gradient surpasses certain limit, timber will ftracture, traditional long reason of drying of wood cycle that Here it is.And in the process of vacuum drying of timber, because the timber external pressure reduces, all form bigger pressure reduction inside and outside making timber, thereby the moisture that makes timber inside to the top layer the mobile of liquid and gaseous state is taken place, this translational speed is than the conventional drying speed of timber more than high ten times.Therefore the vacuum in the dryer cartridge is high more, and the pressure reduction of timber inside and outside is just big more, makes rate of drying big more, and arid cycle is just short more.The utility model is compared with Chinese patent CN87205548U, because the power transmission shaft of electric drive axle flow fan of the present utility model adopts magnetic shaft coupling to link to each other with motor, at one stroke solved the inevitable leakage problem of mechanical seal, thereby guaranteed to have higher vacuum in the utility model dryer cartridge reliably; In addition because skull of the present utility model is a quick-actuating closure, it with cylindrical shell between by being connected with hand decelerator by hanging the pendulous device that handle etc. constitutes, and tooth engagement mutually between quick-actuating closure flange and the shell flange, relying on the locator card assembling to be connected with described skull of CN87205548U and cylindrical shell compares, sealing effectiveness is better, guaranteed to have higher vacuum in the utility model dryer cartridge equally, thereby guaranteed the utlity model has rate of drying faster, made that the drying of wood cycle is shorter.3. wood drying quality is better.The dry mass of timber depends on the humidity of drying medium to a great extent.In Chinese patent CN87205548U owing to adopt humid air as drying medium, the humidity of this medium under vacuum is actually unmeasured, so in timber drying, spray when steaming operation for alleviating the inner wet stress (promptly preventing timber generation implosion and warpage) of timber, the quantity that spray is steamed is uncontrollable, and can only decide with operator's experience, so the dry mass of timber is unstable and be difficult to guarantee.And the utility model has been avoided the humid air that relative humidity is difficult to detect and regulate and has been made drying medium, and adopt superheated steam as drying medium, utilized the temperature and pressure characteristic of water vapour rightly, as long as regulate the relative value of temperature and pressure, the relative humidity of drying medium just can be obtained easily, make to preventing that timber generation implosion and warpage from spraying when steaming operation, the quantity that spray is steamed can accurately control, and no longer operate by rule of thumb by the operator, thereby guaranteed the dry mass and the rate of drying of timber, therefore the utility model is better to the dry mass of timber comparatively speaking.The utility model adopts superheated steam as drying medium in addition, and timber is no longer contacted with air, also can not go mouldy even aim at seasoned wood, and the scope of application that has enlarged equipment is timber kind, has guaranteed that the utility model is better to the dry mass of timber.4. service life of equipment is longer.Because the utility model adopts superheated steam as drying medium, do not adopt humid air as drying medium and do not resemble the Chinese patent CN87205548U, avoided the corrosion of humid air to drying equipment, by contrast, longer service life of the present utility model.5. safe and reliable.Because the utility model adopts superheated steam as drying medium, the relative humidity of drying medium can conveniently be obtained, thereby making spray steam the quantity that spray is steamed in the operating process can accurately control, misoperation takes place in unlikely the steaming in the operation in spray, makes obvious rising of pressure of inner barrel surpass the internal design pressure power of cylindrical shell and produce the hidden danger of cylindrical shell blast; The utility model is provided with automatic decompression device (safety valve) in addition, even misoperation, inner barrel pressure obviously raises and when surpassing the internal design pressure power of cylindrical shell, also can releasing pressure automatically, make inner barrel pressure be lower than the internal design pressure power of cylindrical shell, thoroughly eliminated the hidden danger that cylindrical shell is blasted, therefore, security of the present utility model comparatively speaking is higher.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the structural representation of facing of the present utility model.
Fig. 2 is the B-B cutaway view of Fig. 1.
Fig. 3 is that the A of Fig. 1 is to structural representation.
Vacuum drying of wood equipment as shown in Figure 1 and Figure 2, have drier body and skull, the drier body is a horizontal cylindrical steel cylindrical shell (7), be welded with several reinforcing rings (5) on cylindrical shell (7) outer wall, the cylindrical shell inboard is provided with some electric drive axle flow fans (1), aerofoil fan (1) is positioned at the both sides on the tubular axis direction, and aerofoil fan (1) adopts magnetic coupling to be connected (27) with the motor (28) in the barrel outside; The unit of steam jet that is provided with in the cylindrical shell is a pipeline that has a lot of apertures, one end passes and is welded on the barrel, cylindrical shell is provided with vacuum and derives jockey, and both unite two into one interface of unit of steam jet (20) and vacuum let-off gear(stand) interface (20), and the distributing pipe (34) bottom cylindrical shell links to each other, distributing pipe has a lot of apertures on (34), and distributing pipe is connected with valve (33) and valve (35) respectively, valve (35) is by pipeline (26) and by vavuum pump (25), water tank (23) links to each other by the vacuum acquiring system that pipeline (24) connects and composes with water circulating pump (22), and valve (33) is connected with jet chimney by pipeline (32).The inboard of cylindrical shell bottom is provided with the guide rail (31) that moves for timber load wagon (30).Also be provided with pressure vacuum gauge (10), safety interlocking (14) and the ball valve interface (17) that is attached thereto, drying medium temperature measuring set (8) on the cylindrical shell, reel temperature and water cut meter (18) and safety valve (9) (being automatic decompression device) and sealed interface (16).Heater (29) is located in the cylindrical shell and is that two interfaces (3) and (4) of organizing fin heaters, heater are connected with steam inlet and condensation-water drain respectively more.In order to strengthen heat insulation effect, be equipped with one deck heat-insulation layer (6) on the outer surface of skull and cylindrical shell.Described skull can be one, also can be two (as shown in Figure 3), lays respectively at the two ends of cylindrical shell, and wherein the skull of an end is quick-actuating closure (15), and the other end is fixing ellipsoidal head (2), and perhaps two ends is quick-actuating closure.By being connected with hand decelerator (36), be evenly equipped with the tooth (39) that is meshed with tooth (40) on the shell flange (38) on the flange (37) of quick-actuating closure (15) between quick-actuating closure (15) and the cylindrical shell by hanging handle (13), pin (12) and the pendulous device of swing arm formations such as (11).Described drier body, it can be one, make for convenient, also can be to be welded to each other by some joint steel cylinders to form, and drier body bottom can be provided with a hold-down support (19) and plurality of movable bearing (21), drying equipment is contacted with ground by bearing, and hold-down support (19) has restriction drier body translation functions, and movable bearing support (21) has the guide effect of cylindrical shell when expanding with heat and contract with cold.
When utilizing the utility model to carry out the drying of wood, at first timber is packed in the drier body by dolly (30), shut quick-actuating closure and seal, the perfect vacuum will be pumped into then in the drier, then the vacuum of setting is steamed in spray, and open fan and heater air intake valve, make timber be heated to the baking temperature of setting; Keep vacuum and the medium temperature and the continuous drying of setting; Before drying is finished, carry out stress-removal and handle, remove vacuum then, open quick-actuating closure timber is taken out.Then can repeat aforesaid operations and finish down the drying of batch timber.
Claims (4)
1, a kind of vacuum drying of wood equipment, have drier body, skull and heater, skull is positioned at the end of drier body, the drier body is a horizontal cylindrical steel cylindrical shell (7), be welded with some reinforcing rings (5) on the cylinder body outer wall, the cylindrical shell inboard is provided with some electric drive axle flow fans (1), and the unit of steam jet that is provided with in the cylindrical shell is a pipeline that has a lot of apertures, one end passes and is welded on the barrel, and cylindrical shell is provided with vacuum and derives jockey; The inboard of cylindrical shell bottom is provided with guide rail (31), it is characterized in that, skull and cylinder body outer wall are equipped with certain thickness heat-insulation layer (6), aerofoil fan (1) is positioned at the both sides on the tubular axis direction, and aerofoil fan (1) adopts magnetic coupling (27) to be connected with the motor (28) in the barrel outside; Cylindrical shell is provided with pressure vacuum gauge (10), safety interlocking (14), drying medium temperature measuring set (8) and reel temperature and water cut meter (18), safety valve (9) (being automatic decompression device) and sealed interface (16); Unit of steam jet interface (20) is derived jockey interface (20) with vacuum, and both unite two into one, and link to each other with the distributing pipe (34) of cylindrical shell bottom, distributing pipe has a lot of apertures on (34), and distributing pipe (34) is connected with valve (33) and valve (35) respectively, valve (35) by pipeline (26) with link to each other by the vacuum acquiring system that pipeline (24) connects and composes by vavuum pump (25), water tank (23) and water circulating pump (22), valve (33) is connected with jet chimney by pipeline (32); Heater (29) is located in the cylindrical shell, and is many group fin heaters, and two interfaces (3) and (4) of heater (29) are connected with steam inlet and condensation-water drain respectively.
2, vacuum drying of wood equipment according to claim 1, it is characterized in that: described skull can be one, also can be two, lay respectively at the two ends of drier body, wherein the skull of an end is quick-actuating closure (15), the other end be fixing ellipsoidal head (2), or two ends be quick-actuating closure; By being connected with hand decelerator (36), be evenly equipped with the tooth (39) that is meshed with tooth (40) on the shell flange (38) on the flange of quick-actuating closure (37) between quick-actuating closure (15) and the cylindrical shell by hanging handle (13), pin (12) and the pendulous device of swing arm formations such as (11).
3, vacuum drying of wood equipment according to claim 1 and 2 is characterized in that: described drier body can be an one, also can be to be welded to each other by some steel cylinders to form.
4,, it is characterized in that described drier body bottom is provided with a hold-down support (19) and plurality of movable bearing (21) according to claim 1 or 2 or 3 described vacuum drying of wood equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97247475 CN2308494Y (en) | 1997-10-10 | 1997-10-10 | Wood vacuum drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97247475 CN2308494Y (en) | 1997-10-10 | 1997-10-10 | Wood vacuum drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2308494Y true CN2308494Y (en) | 1999-02-24 |
Family
ID=33954932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97247475 Expired - Fee Related CN2308494Y (en) | 1997-10-10 | 1997-10-10 | Wood vacuum drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2308494Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748932A (en) * | 2012-06-15 | 2012-10-24 | 江苏中旗作物保护股份有限公司 | Vacuum drier of plates |
| CN104913638A (en) * | 2015-07-07 | 2015-09-16 | 苏州热工研究院有限公司 | Small-size atmosphere constant temperature furnace for mechanics experimental machine |
| CN104949894A (en) * | 2015-07-07 | 2015-09-30 | 苏州热工研究院有限公司 | High-temperature environment fretting wear testing machine |
| CN105135831A (en) * | 2015-08-28 | 2015-12-09 | 明光市阳光木业有限公司 | Negative pressure vacuumizing wood drying device |
| CN105258456A (en) * | 2015-08-28 | 2016-01-20 | 明光市阳光木业有限公司 | Wood drying processing device |
| CN106322922A (en) * | 2016-11-21 | 2017-01-11 | 山东舜耕干燥设备有限公司 | Vacuum pulse drying machine |
| CN109676739A (en) * | 2019-01-21 | 2019-04-26 | 余姚市荣大塑业有限公司 | A kind of surface frosted treatment process of safety-type outdoor desk-chair |
-
1997
- 1997-10-10 CN CN 97247475 patent/CN2308494Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748932A (en) * | 2012-06-15 | 2012-10-24 | 江苏中旗作物保护股份有限公司 | Vacuum drier of plates |
| CN104913638A (en) * | 2015-07-07 | 2015-09-16 | 苏州热工研究院有限公司 | Small-size atmosphere constant temperature furnace for mechanics experimental machine |
| CN104949894A (en) * | 2015-07-07 | 2015-09-30 | 苏州热工研究院有限公司 | High-temperature environment fretting wear testing machine |
| CN105135831A (en) * | 2015-08-28 | 2015-12-09 | 明光市阳光木业有限公司 | Negative pressure vacuumizing wood drying device |
| CN105258456A (en) * | 2015-08-28 | 2016-01-20 | 明光市阳光木业有限公司 | Wood drying processing device |
| CN106322922A (en) * | 2016-11-21 | 2017-01-11 | 山东舜耕干燥设备有限公司 | Vacuum pulse drying machine |
| CN109676739A (en) * | 2019-01-21 | 2019-04-26 | 余姚市荣大塑业有限公司 | A kind of surface frosted treatment process of safety-type outdoor desk-chair |
| CN109676739B (en) * | 2019-01-21 | 2021-08-27 | 宁波欧陆创意家居有限公司 | Surface sanding treatment process for safe outdoor table and chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |