CN209953198U - Air inlet device and drying unit - Google Patents
Air inlet device and drying unit Download PDFInfo
- Publication number
- CN209953198U CN209953198U CN201821866436.9U CN201821866436U CN209953198U CN 209953198 U CN209953198 U CN 209953198U CN 201821866436 U CN201821866436 U CN 201821866436U CN 209953198 U CN209953198 U CN 209953198U
- Authority
- CN
- China
- Prior art keywords
- air
- drying unit
- air inlet
- gas distribution
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model relates to an air inlet unit and drying unit. The utility model discloses an air inlet unit, air inlet unit includes primary gas distribution case and secondary gas distribution unit, be equipped with the air inlet on the primary gas distribution case, the appearance chamber of secondary gas distribution unit with the appearance chamber of primary gas distribution case is linked together, be equipped with the mouth of supplying gas on the secondary gas distribution unit, the secondary gas distribution unit is in mouth of supplying gas department is equipped with the air-resistor component, is used for making the air current that the mouth of supplying gas flows evenly stably. The utility model discloses make can control medium velocity of flow difference, temperature difference and pressure difference at effective drying range to the realization is treated the high-speed even heat input of stabilizing in drying medium surface, guarantees drying effect and production efficiency.
Description
Technical Field
The utility model relates to a drying equipment technical field especially relates to an air inlet unit and drying unit.
Background
Whether the optimal coating and drying process can be accurately applied in the design process of the lithium battery or not is balanced, and the comprehensive technical performance of coating is finally influenced.
The lithium battery electrode is a coating composed of particles, and in the preparation process of the electrode, uniform wet slurry is coated on a metal current collector, and then a solvent in the wet coating is removed through drying. The electrode slurry often needs to be added with a polymer binder or a dispersing agent, and a conductive agent such as carbon black. Although the solids content is generally greater than 30%, during drying, the coating always undergoes some shrinkage as the solvent evaporates, the solid substances approach each other in the wet coating and a porous dry electrode structure is finally formed.
In the drying technology of current battery pole piece, it is the air current that directly blows to the pole piece mostly when the drying, because can have medium velocity of flow difference, temperature difference and pressure difference like this, cause the pole piece phenomenon of ftractureing, consequently can not apply great very fast air current and dry, also influenced the efficiency of production in return.
Therefore, how to control the speed of the drying medium applied to the surface to be dried and adjust the medium flow rate difference, the temperature difference and the pressure difference in the effective drying range to realize the high-speed stable and uniform heat input of the surface of the medium to be dried, thereby greatly improving the solvent evaporation speed and reducing the pole piece cracking phenomenon becomes a big problem in the field.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing an air inlet unit and drying unit for can control medium velocity of flow difference, temperature difference and pressure difference at effective drying within range, treat the high-speed even heat input of stabilizing in drying medium surface with the realization, guarantee drying effect and production efficiency.
The utility model provides an air inlet unit, air inlet unit includes primary gas distribution case and secondary gas distribution unit, be equipped with the air inlet on the primary gas distribution case, the appearance chamber of secondary gas distribution unit with the appearance chamber of primary gas distribution case is linked together, be equipped with the mouth of supplying gas on the secondary gas distribution unit, the secondary gas distribution unit is in mouth of supplying gas department is equipped with the air-resistor component, is used for making the air current that the mouth of supplying gas flows is even stable.
In the above air inlet device, the air resistance element is made of a porous material.
Further, the porous material comprises one of a wire-shaped stacked porous material, a heat-resistant porous engineering plastic, a porous aluminum material or any combination thereof.
Further, the air resistance element has a volume porosity of 40% -80%, the uniformity deviation of the porosity is not higher than 40%, and the absolute permeability of the porous material is 1e-10To 1e-8m2Within the range.
In the above air intake device, the cross-sectional shape of the secondary air distribution unit perpendicular to the bottom surface of the air supply opening may be substantially square, trapezoidal or circular, and the width of the air supply opening of the secondary air distribution unit is 2 to 50 cm; the secondary gas distribution unit is internally provided with a tubular or plate-shaped gas distribution element which is positioned above the gas resistance element and can be horizontally or vertically arranged so as to further reasonably distribute the gas flow.
The above-mentioned gas inlet device is provided with a single or a group of secondary gas distribution units, the secondary gas distribution units can be arranged inside or outside the primary gas distribution box, and the secondary gas distribution units are arranged at the bottom or side of the primary gas distribution box; when a group of secondary gas distribution units is provided, the group of secondary gas distribution units are arranged at intervals.
In the above gas inlet device, the primary gas distribution box is provided with the gas distribution plate, the gas distribution plate may be a gas-permeable plate or a gas-impermeable plate, the gas distribution plate is arranged below the gas inlet, the distance from the gas inlet is 8% -92% of the total height of the cavity of the primary gas distribution box, the gas distribution plate is provided with one or more gas distribution plates, and when the number of the gas distribution plates is multiple, the plurality of gas distribution plates are located on the same horizontal plane or different horizontal planes.
The utility model also provides a drying unit, drying unit includes air exhaust device and foretell air inlet unit, air exhaust device with air inlet unit separates to set up or adjacent airtight combination sets up, the last extraction opening that is equipped with of air exhaust device, the extraction opening with the adjacent setting of air feed opening on the air inlet unit.
In the above drying unit, an air exhaust air resistance element is arranged at an air exhaust opening of the air exhaust device, the air exhaust air resistance element is a porous material or a vent hole plate, when the air exhaust air resistance element is a porous material, the porous material comprises one or any combination of a wire-shaped stacked porous material, a heat-resistant porous engineering plastic and a porous aluminum material, the air exhaust air resistance element has a porosity of 40% -80%, the uniformity deviation of the porosity is not higher than 40%, and the absolute permeability of the porous material is 1e-10To 1e-8m2Within the range.
In the above drying unit, the number of the air exhaust ports of the air exhaust device may be one or more, and when the number of the air exhaust ports is multiple, the air exhaust ports and the air supply ports are arranged at intervals; the width L of the air pumping opening is at least 2mm and not more than 6 times of the width of the air supply opening;
the inboard of extraction opening is equipped with the fin, the fin symmetry is located the both sides of extraction opening, and forms the bellmouth that the bore becomes big from the bottom up, and the contained angle of every side fin and horizontal plane is 10-90 degrees, and every side fin accords with at the projection length L2 of horizontal plane: l-2 × L2 is not less than 8 mm;
the air extracting device is internally provided with an air extracting distribution plate which is a breathable or air-impermeable plate, the air extracting distribution plate is arranged below an air extracting pipeline opening of the air extracting device, the distance from the air extracting pipeline opening is 8% -92% of the total height of the cavity of the air extracting device, the width of the air extracting distribution plate is not less than the caliber of the air extracting pipeline opening, one or more air extracting distribution plates are arranged, and when the number of the air extracting distribution plates is multiple, the air extracting distribution plates are positioned on the same horizontal plane or different horizontal planes;
when the air exhaust device and the air inlet device are arranged in an adjacent airtight combination mode, the air exhaust device and the outer side of the air inlet device are arranged in a superposed mode, or the air exhaust device is located in a cavity of the air inlet device, or the air inlet device is located in the cavity of the air inlet device;
the drying unit comprises one or more groups of combinations of the air exhaust devices and air inlet devices, and one or more air exhaust devices and one or more air inlet devices are respectively arranged; the number of the air exhaust devices and the number of the air inlet devices are the same or different;
when the combination of the air exhaust device and the air inlet device of the drying unit is one, the combination comprises one air exhaust device and one air inlet device, or comprises one air exhaust device and two air inlet devices, or comprises one air inlet device and two air exhaust devices, and the air inlet devices and the air exhaust devices are arranged in a mutually crossed manner;
when the drying unit comprises a plurality of groups of combinations of the air exhaust devices and the air inlet devices, the combinations are arranged on the same side or different sides of the dried object, and when the combinations are positioned on the same side, the combinations are adjacent or arranged at intervals; when the combination is positioned on two sides, the combinations are symmetrically arranged or staggered on two sides.
The utility model discloses make can control medium velocity of flow difference, temperature difference and pressure difference at effective drying range to the realization is treated the high-speed even heat input of stabilizing in drying medium surface, guarantees drying effect and production efficiency.
Drawings
FIG. 1 is a schematic cross-sectional view of an air induction device;
FIG. 2 is a schematic cross-sectional view of an air inlet device according to another embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an air inlet device according to another embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a secondary gas distribution unit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a modified embodiment of an air inlet device according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of an air extractor according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of an air extractor according to another embodiment of the present invention;
fig. 8 is a schematic top view of a drying unit according to an embodiment of the present invention;
fig. 9 is a schematic top view of a drying unit according to another embodiment of the present invention;
fig. 10 is a schematic top view of a drying unit according to another embodiment of the present invention;
fig. 11 is a schematic top view of a drying unit according to another embodiment of the present invention;
FIG. 12 is a schematic structural view of a drying unit in embodiment 1 of the present invention;
fig. 13 is a schematic cross-sectional view of an air intake device according to embodiment 1 of the present invention;
FIG. 14 is a schematic cross-sectional view of an air extractor according to embodiment 1 of the present invention;
FIG. 15 is a schematic cross-sectional view of a secondary gas distribution unit according to embodiment 1 of the present invention;
fig. 16 is a schematic structural view of a drying unit in embodiment 2 of the present invention;
fig. 17 is a schematic cross-sectional view of an air intake device according to embodiment 2 of the present invention;
FIG. 18 is a schematic cross-sectional view of an air extractor according to embodiment 2 of the present invention;
fig. 19 is a schematic cross-sectional view of a secondary gas distribution unit according to embodiment 2 of the present invention;
fig. 20 is a schematic structural view of a drying unit in embodiment 3 of the present invention;
fig. 21 is a schematic cross-sectional view of an air intake apparatus according to embodiment 3 of the present invention;
fig. 22 is a schematic cross-sectional view of an air extractor according to embodiment 3 of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings and examples to better understand the aspects and advantages of the invention. However, the specific embodiments and examples described below are for illustrative purposes only and are not intended to limit the present invention.
The utility model discloses a design is, no longer directly blow drying with gas to taking dry pole piece on, but carry out the drying with conveying gas and distribute many times, set up the windage component at the air supply port, apply in the speed on the surface of waiting to dry in order to can control the stoving medium, and can adjust the medium velocity of flow difference in the effective drying range, temperature difference and pressure difference, realize treating the high-speed stable even heat input of stoving medium surface, thereby improve solvent evaporation rate by a wide margin, and reduce pole piece fracture phenomenon.
As shown in figure 1, the air inlet device of the utility model mainly comprises a primary air distribution box 1 and a secondary air distribution unit 2, and the air supply speed range is 1-30 m/s, preferably 2-10 m/s.
The primary gas distribution box 1 is provided with an air inlet 4, one end of an air inlet pipeline is connected to the air inlet 4, and the other end of the air inlet pipeline is directly connected with an air inlet main pipeline or a fan in an airtight mode.
The cavity of the secondary gas distribution unit 2 is communicated with the cavity of the primary gas distribution box 1, and the dry gas flows to the secondary gas distribution unit 2 through the primary gas distribution box 1. The vents C of the primary gas distribution box 1 to the secondary gas distribution unit 2 may be provided at the top or the side of the secondary gas distribution unit 2.
The secondary gas distribution unit 2 is provided with a gas supply port, the secondary gas distribution unit 2 is provided with a gas resistance element 3 at the gas supply port, and the gas inlet flow is regulated and controlled by the gas resistance element 3 and is distributed again to contact the surface of the material W to be dried, so that the gas flow flowing out from the gas supply port is uniform and stable. The surface of the air supply opening can be a plane or a curved surface. When the drying device is a plane, the shape of the air supply opening can be rectangular or circular or other shapes, and can be specifically set according to the shape of the object to be dried.
The air resistance element is a porous material, and can comprise one of a wire-shaped stacked porous material, heat-resistant porous engineering plastics, porous aluminum materials or any combination thereof.
Further, the air resistance element has a volume porosity of 40% -80%, the uniformity deviation of the porosity is not higher than 40%, and the absolute permeability of the porous material is 1e-10To 1e-8m2Within the range.
The air resistance element 3 may form a layered structure at the air feed opening with a thickness which may be greater than 3mm and less than half the height of the secondary dispensing unit.
The section of the secondary gas distribution unit perpendicular to the bottom surface of the air supply outlet is approximately square, trapezoidal or circular, and as shown in fig. 1, the section is approximately square; as shown in fig. 2, the cross-section is substantially circular; as shown in fig. 3, is generally trapezoidal in shape.
When the air supply outlet is rectangular, the width of the air supply outlet of the secondary air distribution unit along the running direction of the drying object is 2-50cm, and the transverse length is slightly larger than the width of the base material to be dried. A tubular or plate-shaped gas distribution element 6 is arranged in the secondary gas distribution unit 2 and is positioned above the gas resistance element. The gas distribution element can be arranged horizontally or vertically to further distribute the gas flow reasonably. When horizontally disposed, as shown in fig. 1, and when vertically disposed, as shown in fig. 4. The vent of the secondary dispensing unit is also shown in this figure as being laterally disposed.
The gas inlet device is provided with a single or a group of secondary gas distribution units 2, and the secondary gas distribution units 2 can be arranged inside or outside the primary gas distribution box 1; the secondary gas distribution unit can be arranged at the bottom or the side surface of the primary gas distribution box; when a group of secondary gas distribution units is provided, the group of secondary gas distribution units are arranged at intervals. The purpose of the secondary air inlet distribution box interval is as follows: increasing gas turbulence fluctuations between the gas outlet and the substrate to be dried while increasing the mass and heat transfer rates.
As shown in fig. 1 and 2, a gas distribution plate 5 is arranged in the primary gas distribution box 1, the gas distribution plate can be a gas-permeable or gas-impermeable plate, the gas distribution plate is arranged below the gas inlet, and the distance from the gas inlet 4 is 8% -92% of the total height of the cavity of the primary gas distribution box 1. The gas distribution plate 5 is provided with one or more, and when plural, the plural gas distribution plates are located at the same level or different levels. The gas distribution plate 5 achieves uniform distribution of the intake gas flow and supplies the secondary gas distribution unit 2.
The gas distribution plate 5 may be made of gas permeable or gas impermeable material and may be sized and positioned according to the air inlets and fluid mechanics calculations. The gas distribution plate 5 realizes uniform pumping of pumping gas flow, and the uniformity of a flow field in a drying area is not influenced.
A variant embodiment of the above described air inlet device can also be seen in fig. 5. It can be seen that the air inlet can be set to one or more, and the position can be set to a plurality of positions, specifically according to the air supply amount and the requirement.
The utility model also provides a drying unit, drying unit includes air exhaust device and foretell air inlet unit. The air exhaust device and the air inlet device are arranged in a separated mode or in an adjacent airtight combination mode.
As shown in fig. 6, an air exhaust port 8 is provided on the air exhaust device, and the air exhaust port 8 is provided adjacent to the air supply port on the air intake device.
In the drying unit, the air extraction port 8 of the air extraction device can be provided with an air extraction air resistance element 11, and the air extraction air resistance element can extract the gasified solvent, and the gasified solvent is distributed again through the air resistance element and then is extracted from the drying device through the air extraction pipeline 10. The suction duct 10 is connected hermetically to a main suction line or suction pump.
The air-extracting air-blocking element 11 can be a porous material or a vent hole plate, when the air-extracting air-blocking element is a porous material, the porous material comprises one or any combination of a metal wire-shaped stacked porous material, heat-resistant porous engineering plastics and porous aluminum materials, the air-extracting air-blocking element has a porosity of 40% -80%, the uniformity deviation of the porosity is not higher than 40%, and the absolute permeability of the porous material is 1e-10To 1e-8m2Within the range.
In the above-mentioned drying unit, the number of the air exhaust ports 11 of the air exhaust device may be one or more, and when the number of the air exhaust ports is multiple, the air exhaust ports and the air supply ports are arranged at intervals. The width setting of the air pumping opening can be optimized through fluid mechanics calculation, and the width range is 1-4 times of the turbulent flow development distance. The width L of the air pumping opening is at least 2mm and is not more than 6 times of the width of the air supply opening.
The pumping ports 11 may be separated by a baffle or a secondary distribution unit of the air inlet device.
Specifically, as shown in fig. 7, the air extraction opening 11 forms a bell mouth with an aperture that becomes larger from bottom to top, an included angle between each side fin and the horizontal plane is 10 to 90 degrees, and a projection length L2 of each side fin on the horizontal plane meets the following requirements: l-2 × L2 is not less than 8 mm.
An air exhaust distribution plate 7 can be arranged in the air exhaust device, so that the air exhaust flow can be uniformly pumped, and the uniformity of a flow field in a dry area is not influenced.
The air exhaust distribution plate 7 is an air-permeable or air-impermeable plate, the air exhaust distribution plate 7 is arranged below an air exhaust pipe opening of the air exhaust device, the distance from the air exhaust pipe opening is 8% -92% of the total height of the cavity of the air exhaust device, the width of the air exhaust distribution plate is not less than the caliber of the air exhaust pipe opening, one or more air exhaust distribution plates are arranged, and when the number of the air exhaust distribution plates is multiple, the air exhaust distribution plates are located on the same horizontal plane or different horizontal planes.
When the air exhaust device and the air inlet device are arranged in an adjacent airtight combination mode, the air exhaust device and the outer side of the air inlet device are arranged in a superposed mode, or the air exhaust device is located in a cavity of the air inlet device, or the air inlet device is located in the cavity of the air inlet device;
the drying unit comprises one or more groups of combinations of the air exhaust devices and air inlet devices, and one or more air exhaust devices and one or more air inlet devices are respectively arranged; the number of the air exhaust devices and the number of the air inlet devices are the same or different;
when the combination of the air exhaust device and the air inlet device of the drying unit is one, the combination comprises one air exhaust device and one air inlet device, or comprises one air exhaust device and two air inlet devices, or comprises one air inlet device and two air exhaust devices, and the air inlet devices and the air exhaust devices are arranged in a mutually crossed manner;
when the drying unit comprises a plurality of groups of combinations of the air exhaust devices and the air inlet devices, the combinations are arranged on the same side or different sides of the dried object, and when the combinations are positioned on the same side, the combinations are adjacent or arranged at intervals; when the combination is positioned on two sides, the combinations are symmetrically arranged or staggered on two sides.
The combination of the air inlet means and the air extraction means is shown in figure 8. Wherein the upper circle represents the inlet and the exhaust duct ports.
The schematic diagrams after changing the number and positions of the air inlets and the air outlets are shown in fig. 9 and 10.
The positions of the intake air flow distributor box a and the bleed air flow distributor box B are changed as shown in fig. 11.
The utility model discloses the medium velocity of flow to admitting air and bleeding is controlled to redistribution through the air current, adjust the gas velocity of flow gradient and the pressure gradient in the effective drying range, to treating that the dry media surface applys high-speed stable even heat flow, thereby improve solvent evaporation rate by a wide margin, and reduce the pole piece phenomenon of ftractureing in the battery pole piece is dried.
The utility model discloses can with current other convection currents, conduction and radiation drying device combined use further promote solvent evaporation rate.
The utility model discloses other that also can be applied to except that battery sheet coating require higher in-process to the coating face degree of consistency, including but not limited to papermaking, electronic film material, organic photovoltaic, flexible wearable equipment etc..
The utility model discloses a basic thinking is gas evenly distributed's inlet box and exhaust chamber, and accessible airtight mode or adjacent combination that sets up are dried for the drying unit, have the possibility of multiple combination, the following partial example of lifting illustrates.
Example 1
As shown in fig. 12, in this embodiment, the single side of the object to be dried is dried, the drying unit is disposed above the substrate to be dried, the drying unit is composed of two air inlets and one air extractor, each air inlet is provided with one or more air inlets, the air extractor is also provided with one or more air outlets, hot air enters the primary distribution box through the air inlets, and can be selectively distributed by the distribution plate to adjust the flow rate, enters the secondary distribution unit, and then passes through the air inlet air resistance unit, and finally the substrate is dried.
The solvent is evaporated by utilizing the heat carried by the hot air, and then the hot air and the solvent gas pass through the air pumping air resistance unit and are pumped out of the system through the air pumping hole. The extractor may also incorporate fins and airflow distribution plates, although not shown in the three-dimensional schematic.
The air inlet box and the air extraction box can be combined into a complete drying box, the length of the drying box is 2-3 meters generally, and the width of the drying box can be adjusted according to the width of the material to be dried.
Fig. 13 is a sectional view of the intake device. Figure 14 is a cross-sectional view of a suction device. A side cross-sectional view of the secondary air intake distribution box is shown in fig. 15.
The arrangement of the air inlet device and the air exhaust device is as described above, and is not described in detail herein.
Example 2
As shown in fig. 16, this embodiment is also single-sided drying, the drying unit is arranged above the substrate to be dried, the drying unit is composed of a single air inlet device and a single air exhaust device, each air inlet device is provided with one or more air inlets, the air exhaust device is also provided with one or more air exhaust duct ports, and the specification and size of the air inlet device are changed correspondingly due to the change of the air inlet mode. Otherwise, the same as the first embodiment.
A two-dimensional cross-sectional view of the air intake device is shown in FIG. 17 and a two-dimensional cross-sectional view of the air exhaust device is shown in FIG. 18.
A side cross-sectional view of the secondary air intake distribution box is shown in fig. 19.
In the previous embodiments, the positions of the air inlet box and the air extraction box can be interchanged, and the air inlet and the air outlet can be changed in position and number, so that a plurality of other schemes can be combined.
Example 3
As shown in fig. 20, this example is a double-sided suspension drying (or so-called air flotation drying), and a drying unit for supplying air and exhausting air simultaneously is disposed on both upper and lower sides of the substrate to be dried, wherein the drying unit may employ all or a combination of the above embodiments. The scheme has many advantages, such as improving the drying speed, reducing the influence of mechanical transmission equipment on the base material, realizing simultaneous drying of double-sided coating and the like.
The two drying units at the upper part (D1) and the lower part (D2) can be arranged in a complete opposite stroke way or staggered by a relative position, and the relative position is generally half of the arrangement pitch of the secondary distribution units.
A two-dimensional cross-sectional view of the air intake device is shown in FIG. 21, and a two-dimensional cross-sectional view of the air exhaust device is shown in FIG. 22.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.
Claims (32)
1. The air inlet device is characterized by comprising a primary air distribution box and a secondary air distribution unit, wherein an air inlet is formed in the primary air distribution box, a cavity of the secondary air distribution unit is communicated with the cavity of the primary air distribution box, an air supply port is formed in the secondary air distribution unit, and an air resistance element is arranged at the air supply port of the secondary air distribution unit and used for enabling air flow flowing out of the air supply port to be uniform and stable.
2. An air inlet arrangement according to claim 1, characterised in that the air-blocking element is a bulk porous material.
3. The intake device according to claim 2, wherein the porous material comprises one of a wire-type stacked porous material, a heat-resistant porous engineering plastic, a porous aluminum material, or any combination thereof.
4. An air inlet arrangement according to claim 2 or 3, characterized in that the air-blocking element has a bulk porosity of 40-80%, the uniformity of porosity deviates no more than 40%, and the absolute permeability of the porous material isAt 1e-10To 1e-8m2Within the range.
5. A gas inlet arrangement according to any one of claims 1 to 3, characterised in that the cross-sectional shape of the secondary gas distribution unit perpendicular to the bottom face of the delivery opening is substantially square, trapezoidal or circular.
6. A gas inlet arrangement according to any one of claims 1 to 3, characterised in that the width of the gas delivery opening of the secondary gas distribution unit is 2-50 cm.
7. A gas inlet arrangement according to any one of claims 1 to 3, characterised in that a tubular or plate-like gas distribution element is provided within the secondary gas distribution unit, above the gas barrier element.
8. A gas inlet arrangement according to any one of claims 1 to 3, characterised in that the gas inlet arrangement is provided with a single or a group of secondary gas distribution units, which are provided internally or externally of the primary gas distribution box.
9. A gas inlet arrangement according to any one of claims 1 to 3, characterised in that the secondary gas distribution unit is provided at the bottom or at the side of the primary gas distribution box.
10. The intake apparatus of claim 8, wherein when a group of secondary gas distribution units are provided at intervals.
11. A gas inlet arrangement according to any one of claims 1 to 3, wherein a gas distribution plate is provided within the primary gas distribution box, the gas distribution plate being a gas permeable or gas impermeable plate, the gas distribution plate being provided below the gas inlet.
12. The gas inlet device according to claim 11, wherein the gas distribution plate is spaced from the gas inlet by a distance of 8% to 92% of the total height of the primary gas distribution box volume.
13. The gas inlet device according to claim 11, wherein the gas distribution plate is provided with one or more, and when plural, the plural gas distribution plates are located at the same level or different levels.
14. A drying unit, characterized in that it comprises an air extraction device and an air inlet device according to any one of claims 1 to 13, said air extraction device being arranged spaced apart from or adjacent to said air inlet device in an air-tight combination, said air extraction device being provided with an air extraction opening, said air extraction opening being arranged adjacent to an air supply opening provided on said air inlet device.
15. The drying unit according to claim 14, wherein the air suction port of the air suction device is provided with an air suction resistance element, and the air suction resistance element is made of a porous material or a vent hole plate.
16. The drying unit of claim 15, wherein when the suction air resistance element is a porous material, the porous material comprises one of a wire-like stacked porous material, a heat-resistant porous engineering plastic, a porous aluminum material, or any combination thereof.
17. The drying unit of claim 16, wherein the bleed air resistance element has a bulk porosity of 40% -80%, the uniformity of porosity is no greater than 40%, and the absolute permeability of the porous material is at 1e-10To 1e- 8m2Within the range.
18. The drying unit according to claim 14, wherein the suction opening of the suction device is one or more, and when the suction opening is plural, the suction opening is spaced apart from the air supply opening.
19. The drying unit of any one of claims 14 to 18, wherein the width L of the suction opening is at least 2mm and not more than 6 times the width of the air bleed.
20. The drying unit according to claim 19, wherein fins are provided inside the air suction opening, the fins are symmetrically provided on both sides of the air suction opening, and form a bell mouth with an increasing caliber from bottom to top.
21. The drying unit of claim 20, wherein each side fin is angled from 10-90 degrees from horizontal.
22. Drying unit according to claim 20 or 21, wherein the projected length L2 of each side fin in the horizontal plane corresponds to: l-2 XL 2 is not less than 8 mm.
23. The drying unit according to any one of claims 14 to 18, 20 or 21, wherein an air extraction distribution plate is arranged in the air extraction device, wherein the air extraction distribution plate is an air-permeable or air-impermeable plate, and the air extraction distribution plate is arranged below an air extraction pipeline opening of the air extraction device.
24. The drying unit according to claim 23, wherein the distance of the extraction distribution plate from the extraction duct mouth is between 8% and 92% of the total height of the extraction device plenum.
25. The drying unit of claim 23, wherein the width of the extraction distribution plate is not less than the caliber of the extraction duct mouth.
26. The drying unit of claim 23, wherein the suction distribution plate is provided with one or more, and when multiple, the multiple suction distribution plates are located at the same level or at different levels.
27. The drying unit according to any one of claims 14 to 18, 20, 21, wherein when the air extraction means is arranged in an adjacent air-tight combination with the air inlet means, the air extraction means is arranged in superposition with the outside of the air inlet means, or the air extraction means is located inside the cavity of the air inlet means, or the air inlet means is located inside the cavity of the air inlet means.
28. The drying unit according to any one of claims 14 to 18, 20, 21, wherein the drying unit comprises one or more sets of a combination of said air extraction means and air inlet means, one or more of each; the number of the air exhaust devices is the same as or different from that of the air inlet devices.
29. Drying unit according to claim 28, wherein when the combination of suction means and air inlet means of the drying unit is one, the combination comprises one suction means and one air inlet means, or comprises one suction means and two air inlet means, or comprises one air inlet means and two suction means, the air inlet means and the suction means being arranged crosswise to each other.
30. The drying unit of claim 28, wherein when the drying unit includes a plurality of sets of the combination of air extraction and air inlet means, a plurality of said sets are disposed on the same or different sides of the object being dried.
31. The drying unit of claim 30, wherein when a plurality of said combinations are disposed on the same side of the object to be dried, a plurality of said combinations are disposed adjacently or at intervals.
32. The drying unit of claim 30, wherein when a plurality of the combinations are disposed on both sides of the object to be dried, the plurality of combinations are disposed symmetrically or staggered on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821866436.9U CN209953198U (en) | 2018-11-13 | 2018-11-13 | Air inlet device and drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821866436.9U CN209953198U (en) | 2018-11-13 | 2018-11-13 | Air inlet device and drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209953198U true CN209953198U (en) | 2020-01-17 |
Family
ID=69235857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821866436.9U Active CN209953198U (en) | 2018-11-13 | 2018-11-13 | Air inlet device and drying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209953198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111167683A (en) * | 2018-11-13 | 2020-05-19 | 耿晋 | Air inlet device and drying unit |
-
2018
- 2018-11-13 CN CN201821866436.9U patent/CN209953198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111167683A (en) * | 2018-11-13 | 2020-05-19 | 耿晋 | Air inlet device and drying unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101548787B (en) | Flow equalizing apparatus used in heated air circulation sterilization dryer for heating cavity | |
| CN209953198U (en) | Air inlet device and drying unit | |
| CN102641835A (en) | Circular-drying case body of coating machine, drying device and drying assembly line | |
| CN201370084Y (en) | Current balancing device in chamber body of hot wind circulation sterilization dryer | |
| WO2020215512A1 (en) | Vacuum drying device | |
| CN111167683A (en) | Air inlet device and drying unit | |
| CN202591090U (en) | Coater circulating drying box body, drying device and drying production line | |
| CN206460259U (en) | A kind of developing machine high efficiency drying device | |
| CN206731481U (en) | A kind of lithium battery diaphragm drying unit | |
| CN110922231B (en) | Ventilating duct of composting system and method for enabling air in vent holes in duct to be uniformly exhausted | |
| CN104037387A (en) | Curing device for accumulator plate and air supply mechanism in curing device | |
| CN201926249U (en) | Belt type circulation drier | |
| CN203105596U (en) | Fermenting box provided with temperature and humidity balancing device | |
| CN105470471B (en) | A kind of cloth wind screen suitable for curing chamber of accumulator plate | |
| CN205058866U (en) | Automatic print material stoving maintenance system of receiving | |
| CN205238832U (en) | Printer drying device | |
| CN205255738U (en) | Hot air exchanger of printing machine | |
| CN206547769U (en) | A kind of myotonin drying system | |
| CN207493986U (en) | A kind of energy-saving and emission-reduction dry type coating machine drying system | |
| CN208941029U (en) | A kind of tubular type tobacco cut drying equipment | |
| CN203024553U (en) | Air inlet device for tunnel kiln type drying room | |
| CN101871722A (en) | Heated-air circulation oven | |
| CN207407600U (en) | A kind of drying room of the even cloth of hot wind | |
| CN207736985U (en) | Air draught stage apparatus for spray drawing machine | |
| CN103882397A (en) | Reaction cavity and magnetron sputtering equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |