CN117515684A - Dehumidification rotating wheel core and preparation method thereof - Google Patents
Dehumidification rotating wheel core and preparation method thereof Download PDFInfo
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- CN117515684A CN117515684A CN202311486225.8A CN202311486225A CN117515684A CN 117515684 A CN117515684 A CN 117515684A CN 202311486225 A CN202311486225 A CN 202311486225A CN 117515684 A CN117515684 A CN 117515684A
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- fiber felt
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- felt layer
- moisture absorption
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title description 7
- 239000000463 material Substances 0.000 claims abstract description 70
- 230000018044 dehydration Effects 0.000 claims abstract description 54
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 54
- 238000010521 absorption reaction Methods 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 88
- 239000002808 molecular sieve Substances 0.000 claims description 24
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 24
- 239000002002 slurry Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 12
- 230000003247 decreasing effect Effects 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 11
- 239000002274 desiccant Substances 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000012621 metal-organic framework Substances 0.000 claims description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- 239000011358 absorbing material Substances 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000013384 organic framework Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 abstract description 6
- 238000011069 regeneration method Methods 0.000 abstract description 6
- 238000010030 laminating Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
Abstract
The utility model provides a dehumidification runner wheel core, includes ripple formula fibrofelt layer, flat fibrofelt layer, ripple formula fibrofelt layer is regional along width direction in proper order, and different subregions are coated with the hygroscopic material of different dehydration temperature, and dehydration temperature rises or reduces gradually, flat fibrofelt layer is regional along width direction in proper order, and different subregions are coated with the hygroscopic material of different dehydration temperature, and dehydration temperature rises or reduces gradually, and ripple formula fibrofelt layer and flat fibrofelt layer laminating, the dehydration temperature variation trend of the hygroscopic material on messenger's two-layer fibrofelt layer is unanimous, and the two-layer fibrofelt layer rolling of laminating is porous honeycomb columnar structure along length direction rolling. The invention has simple structure, low production cost, effective control of load capacity, high utilization rate of hot air in the regeneration process and guarantee of the regeneration moisture absorption performance.
Description
Technical Field
The invention relates to the field of gas dehumidification, in particular to a dehumidification rotating wheel core and a preparation method thereof.
Background
The dehumidifying rotary machine is a device for removing moisture through direct physical adsorption, air or gas passes through a rotary wheel core of the rotary machine, water vapor in the air or gas is adsorbed, and the air or gas passes through the rotary wheel core to achieve the aim of dehumidifying. The dehumidifying rotary machine is widely used in the fields of pharmacy, food processing, electronic industry, medical products, national defense application industry and the like.
At present, a commonly used runner wheel core is manufactured by adopting an integral coating impregnation process, moisture absorption materials distributed on the runner wheel core are unevenly distributed, the load capacity of the runner wheel core is not easy to control, and in the process of regenerating the runner wheel core by hot air, the regeneration state of the runner wheel core is uneven due to gradual cooling of the hot air in the passing process, so that the energy utilization rate is low, and the regeneration moisture absorption performance of the runner wheel core is seriously reduced.
Therefore, how to design a rotor core that is easy to control the load and maintains excellent regenerated moisture absorption capacity is a problem to be solved by those skilled in the art.
Disclosure of Invention
One of the purposes of the invention is to provide a dehumidifying runner wheel core aiming at the defects of the prior art, which has the advantages of simple structure, low production cost, effective control of load capacity, high utilization rate of hot air in the regeneration process and guarantee of the regeneration moisture absorption performance.
The second purpose of the invention is to provide a preparation method of the dehumidification runner core, which is simple and reliable, can effectively ensure the uniform distribution of the moisture absorption material and is easy to control the load.
The technical scheme for realizing one of the purposes of the invention is as follows: the utility model provides a dehumidification runner wheel core, includes ripple formula fibrofelt layer, flat fibrofelt layer, ripple formula fibrofelt layer is regional along width direction in proper order, and different subregions are coated with the hygroscopic material of different dehydration temperature, and dehydration temperature rises or reduces gradually, flat fibrofelt layer is regional along width direction in proper order, and different subregions are coated with the hygroscopic material of different dehydration temperature, and dehydration temperature rises or reduces gradually, and ripple formula fibrofelt layer and flat fibrofelt layer laminating, the dehydration temperature variation trend of the hygroscopic material on messenger's two-layer fibrofelt layer is unanimous, and the two-layer fibrofelt layer rolling of laminating is porous honeycomb columnar structure along length direction rolling.
The corrugated fiber felt layer adoptsThe flat plate type fiber felt is obtained by pressing and forming by a corrugating machine, and the flat plate type fiber felt layer adopts a glass fiber felt or a ceramic fiber felt, and the specification is less than or equal to 50g/m 2 。
The specification of the flat plate type fiber felt layer is less than or equal to 30g/m 2 。
The corrugated fiber mat layer and the flat fiber mat layer have the same widths in each partition.
The two layers of fiber felt layers which are attached are rolled along the length direction to form a porous honeycomb cylindrical structure.
The moisture absorption material is any one of a molecular sieve, silica gel, a metal organic framework material and a high molecular moisture absorption material, wherein the molecular sieve is a 3A molecular sieve, a 4A molecular sieve or a 13X molecular sieve, the metal organic framework material is an aluminum-based organic framework material, and the high molecular moisture absorption material is polyvinyl alcohol with the molecular weight of 25000-35000 or polyethylene glycol with the molecular weight of 200-600.
The second technical scheme for realizing the purpose of the invention is as follows: any one of the preparation methods of the dehumidification runner wheel core comprises the following steps:
1) Sequentially spraying slurry containing moisture absorbing materials with different dehydration temperatures on a flat-plate type fiber felt according to the width direction, gradually increasing or decreasing the dehydration temperature, and then adopting a corrugating machine to press and form to obtain a corrugated fiber felt layer;
2) Sequentially spraying slurry containing moisture absorbing materials with different dehydration temperatures on a flat-plate fiber felt according to the width direction, and gradually increasing or decreasing the dehydration temperature to obtain a flat-plate fiber felt layer;
3) The corrugated fiber felt layer obtained in the step 1) is attached to the flat fiber felt layer obtained in the step 2), so that the variation trend of the dehydration temperature of the moisture absorption material on the two fiber felt layers is consistent;
4) Winding along the length direction of the fiber felt layer to obtain a wheel core blank;
5) And drying the wheel core blank to obtain the dehumidification wheel core.
The slurry in the step 1) and the step 2) is a mixture of a moisture absorption material, an inorganic component and water, wherein the moisture absorption material contains 5-50wt% of the moisture absorption material and 5-20wt% of the inorganic component, the moisture absorption material is any one of a molecular sieve, silica gel, a metal organic framework material and a high molecular moisture absorption material, the molecular sieve is a 3A molecular sieve, a 4A molecular sieve or a 13X molecular sieve, the metal organic framework material is an aluminum-based organic framework material, the high molecular moisture absorption material is polyvinyl alcohol with the molecular weight of 25000-35000 or polyethylene glycol with the molecular weight of 200-600, and the inorganic component is any one or a mixture of a silica sol, an alumina sol, a silica alumina sol and pseudo-boehmite.
And 1) adopting a corrugating machine to press and form to obtain a corrugated fiber felt layer, wherein the temperature of the corrugating machine is 160-220 ℃ during forming, and step 4) adopting a winding machine to wind.
And 5) drying, namely drying for 24-48 hours at 30-60 ℃ and then drying for 10-24 hours at 100-120 ℃.
The technical scheme has the following beneficial effects:
1. the dehumidifying runner core comprises a corrugated fiber felt layer and a flat plate type fiber felt layer. The corrugated fiber mat layers are sequentially partitioned along the width direction, the moisture absorption materials with different dehydration temperatures are coated on different partitions, and the dehydration temperature is gradually increased or decreased, namely, the dehydration temperature of the moisture absorption materials coated on the corrugated fiber mat layers along the width direction is gradually increased or decreased. The flat plate type fiber felt layers are sequentially partitioned along the width direction, moisture absorption materials with different dehydration temperatures are coated on different partitions, and the dehydration temperature is gradually increased or decreased, namely, the dehydration temperature of the moisture absorption materials coated on the flat plate type fiber felt layers along the width direction is gradually increased or decreased. The corrugated fiber felt layer is attached to the flat fiber felt layer, so that the variation trend of the dehydration temperature of the moisture absorption material on the two fiber felt layers is consistent, and the attached two fiber felt layers are rolled along the length direction to form a porous honeycomb columnar structure. Through the two-layer fibrous felt layer of laminating as the rolling material, the moisture absorption material with different dehydration temperatures carries out the coupling and uses, and moist gas or air when passing along the axial of runner wheel core, and wherein vapor is absorbed by the moisture absorption material on the multilayer fibrous felt layer of rolling, reaches dry gas or air's purpose, satisfies the moisture absorption demand. When the dehumidification runner wheel core needs to be dehydrated and regenerated, hot air is utilized to axially pass through the runner wheel core, the entering end is a region coated with a high dehydration temperature moisture absorption material, and the discharging end is a region coated with a low dehydration temperature moisture absorption material, so that the high temperature gas firstly removes the moisture adsorbed in the high dehydration temperature moisture absorption material, the high temperature gas is cooled, and then the moisture adsorbed in the low dehydration temperature moisture absorption material is removed, and the step utilization of energy sources and the high efficiency gas humidity control are realized.
3. According to the preparation method, the flat plate type fiber felt is firstly taken to be partitioned along the width direction, slurry containing moisture absorption materials with different dehydration temperatures is sequentially sprayed in the width direction, the dehydration temperature is gradually increased or decreased, the moisture absorption materials are sprayed on the flat plate type fiber felt in the form of slurry, the moisture absorption materials can be effectively ensured to be uniformly distributed on the flat plate type fiber felt, the aim of controlling the load capacity is further realized by controlling the content of the moisture absorption materials, the processed flat plate type fiber felt is molded to obtain the corrugated fiber felt, and the moisture absorption materials on the corrugated fiber felt are ensured to be uniformly distributed and controllable in load capacity. The corrugated fiber felt and the flat plate fiber felt are laminated and then rolled to form a porous honeycomb columnar structure, a wheel core blank is obtained, and a target product is obtained after drying.
3. According to the preparation method, the rolled wheel core blank is dried at 30-60 ℃ for 24-48 hours, and then dried at 100-120 ℃ for 10-24 hours, so that the internal part of the obtained wheel core can be ensured to have no defects of layering, cracking and the like by adopting the sectional drying mode.
The applicant tests prove that the dehumidifying rotating wheel core prepared by the invention can obviously reduce the temperature of regenerated air and improve the energy utilization efficiency.
Further description is provided below with reference to the drawings and detailed description.
Drawings
FIG. 1 is a schematic illustration of the joining of a corrugated fibrous mat layer, a flat sheet fibrous mat layer, according to the present invention;
FIG. 2 is a schematic representation of the zonal representation of the corrugated fibrous mat of example 1;
FIG. 3 is a schematic view showing the partitioning of a flat-plate fibrous mat layer of example 1;
FIG. 4 is a photograph showing the structure of a desiccant rotor core prepared in example 1;
fig. 5 is a photograph showing the structure of the wheel core of the dehumidifying rotor prepared in comparative example 2.
In the drawing, 1 is a corrugated fiber felt layer, and 2 is a flat fiber felt layer.
Detailed Description
In the present invention, all the raw materials used are commercially available.
Example 1
Referring to fig. 1 to 3, the dehumidifying rotor core comprises a corrugated fibrous felt layer 1, a flat fibrous felt layer 2. The corrugated fiber felt layer 1 is sequentially partitioned (A and B, A: B=1:1) along the width direction, and moisture absorption materials with different dehydration temperatures are coated on different partitions, wherein the A region is coated with a 4A molecular sieve (the corresponding slurry composition is 30% of the 4A molecular sieve, 20% of silica sol and the balance of water), the B region is coated with an aluminum-based organic frame material (the corresponding slurry composition is 5% of the aluminum-based organic frame material, 10% of silica sol and the balance of water), and the dehydration temperature A region is higher than the B region. The flat-plate type fiber felt layer 2 is sequentially partitioned (A and B, A: B=1:1) along the width direction, and moisture absorption materials with different dehydration temperatures are coated on different partitions, wherein the A region is coated with a 4A molecular sieve (the corresponding slurry composition is 30% of the 4A molecular sieve, 20% of silica sol and the balance of water), the B region is coated with an aluminum-based organic frame material (the corresponding slurry composition is 5% of the aluminum-based organic frame material, 10% of silica sol and the balance of water), and the dehydration temperature A region is higher than the B region. The corrugated fiber felt layer 1 is attached to the flat fiber felt layer 2, so that the dehydration temperature change trend of the moisture absorption materials on the two fiber felt layers is consistent, namely, the A area is attached to the A area, and the B area is attached to the B area. The two layers of fiber felt layers which are attached are rolled along the length direction to form a porous honeycomb cylindrical structure. The rolled wheel core blank is dried for 48 hours at 30 ℃ and then dried for 10 hours at 120 ℃ to obtain the dehumidifying wheel core shown in figure 4.
Example 2
Referring to fig. 1, the dehumidifying rotor core comprises a corrugated fibrous felt layer 1 and a flat fibrous felt layer 2. The corrugated fiber felt layer 1 is sequentially partitioned (A and B, A: B=2:1) along the width direction, and the different partitions are coated with moisture absorbing materials with different dehydration temperatures, wherein the A region is coated with a 3A molecular sieve (the corresponding slurry composition is 50% of the 3A molecular sieve, 20% of silica sol and the balance of water), the B region is coated with polyvinyl alcohol with the molecular weight of about 30000 (the corresponding slurry composition is 10% of the polyvinyl alcohol, 5% of the silica sol and the balance of water), and the dehydration temperature A region is higher than the B region. The flat-plate type fiber felt layer 2 is sequentially partitioned (A and B, A: B=2:1) along the width direction, and moisture absorption materials with different dehydration temperatures are coated on different partitions, wherein the A region is coated with a 3A molecular sieve (the corresponding slurry composition is 50% of the 3A molecular sieve, 20% of silica sol and the balance of water), the B region is coated with polyvinyl alcohol with the molecular weight of about 30000 (the corresponding slurry composition is 10% of polyvinyl alcohol, 10% of silica sol and the balance of water), and the dehydration temperature A region is higher than the B region. The corrugated fiber felt layer 1 is attached to the flat fiber felt layer 2, so that the dehydration temperature change trend of the moisture absorption materials on the two fiber felt layers is consistent, namely, the A area is attached to the A area, and the B area is attached to the B area. The two layers of fiber felt layers which are attached are rolled along the length direction to form a porous honeycomb cylindrical structure. And drying the rolled wheel core blank at 60 ℃ for 24 hours, and then drying at 100 ℃ for 24 hours to obtain the dehumidifying wheel core of the rotating wheel.
Example 3
Referring to fig. 1, the dehumidifying rotor core comprises a corrugated fibrous felt layer 1 and a flat fibrous felt layer 2. The corrugated fiber felt layer 1 is sequentially partitioned (A and B, A: B=3:1) along the width direction, and the different partitions are coated with moisture absorbing materials with different dehydration temperatures, wherein the A region is coated with 13X molecular sieves (corresponding slurry composition is 30% of 13X molecular sieves, silica sol (20%) and the balance is water), the B region is coated with polyethylene glycol with molecular weight of 400-500 (corresponding slurry composition is 5% of polyethylene glycol, 5% of silica sol and the balance is water), and the dehydration temperature A region is higher than the B region. The flat-plate type fiber felt layer 2 is sequentially partitioned (A and B, A: B=3:1) along the width direction, the different partitions are coated with moisture absorption materials with different dehydration temperatures, wherein the A region is coated with 13X molecular sieve, the B region is coated with polyethylene glycol with the molecular weight of 400-500, and the dehydration temperature A region is higher than the B region. The corrugated fiber felt layer 1 is attached to the flat fiber felt layer 2, so that the dehydration temperature change trend of the moisture absorption materials on the two fiber felt layers is consistent, namely, the A area is attached to the A area, and the B area is attached to the B area. The two layers of fiber felt layers which are attached are rolled along the length direction to form a porous honeycomb cylindrical structure. And drying the rolled wheel core blank at 40 ℃ for 24 hours, and then drying at 100 ℃ for 24 hours to obtain the dehumidifying wheel core of the rotating wheel.
Comparative example 1
The dehumidifying runner core comprises a corrugated fiber felt layer and a flat plate type fiber felt layer. The corrugated fiber felt layer and the flat fiber felt layer are coated with only 13X molecular sieve, and then the corrugated fiber felt layer is attached to the flat fiber felt layer. The two layers of fiber felt layers which are attached are rolled along the length direction to form a porous honeycomb cylindrical structure. And drying the rolled wheel core blank at 40 ℃ for 24 hours, and then drying at 100 ℃ for 24 hours to obtain the dehumidifying wheel core of the rotating wheel.
The performance of the desiccant rotor cores prepared in example 1, example 2 and example 3 is compared with that of the desiccant rotor core prepared in comparative example 1 in the following table:
description: by adjusting the temperature of the regenerated air, the approach of the water collection amount (indicated by '1') of the dehumidifier is realized, and the energy-saving effect is compared by using the temperature of the regenerated air.
From the results of the table, the embodiment of the invention can obviously reduce the temperature of the regenerated air and improve the energy utilization efficiency.
Other conditions are the same as in example 1, except that the rolled wheel core blank is directly dried at 100 ℃ for 48 hours, and the inside of the obtained dehumidification rotor wheel core is layered and cracked, as shown in fig. 5.
Claims (10)
1. The utility model provides a dehumidification runner wheel core which characterized in that: comprises a corrugated fiber felt layer (1) and a flat plate type fiber felt layer (2),
the corrugated fiber felt layer (1) is divided into sections in sequence along the width direction, the different sections are coated with moisture absorption materials with different dehydration temperatures, the dehydration temperature is gradually increased or decreased,
the flat-plate type fiber felt layer (2) is sequentially partitioned along the width direction, moisture absorption materials with different dehydration temperatures are coated on different partitions, the dehydration temperature is gradually increased or decreased,
the corrugated fiber felt layer (1) is attached to the flat fiber felt layer (2), so that the variation trend of the dehydration temperature of the moisture absorption materials on the two fiber felt layers is consistent, and the attached two fiber felt layers are rolled along the length direction to form a porous honeycomb columnar structure.
2. The desiccant rotor core as claimed in claim 1, wherein: the corrugated fiber felt layer is obtained by adopting a flat plate type fiber felt to be pressed and molded by a corrugating machine, and the flat plate type fiber felt layer adopts a glass fiber felt or a ceramic fiber felt with the specification of less than or equal to 50g/m 2 。
3. The desiccant rotor core as claimed in claim 2, wherein: the specification of the flat plate type fiber felt layer is less than or equal to 30g/m 2 。
4. The desiccant rotor core as claimed in claim 1, wherein: the corrugated fiber mat layer and the flat fiber mat layer have the same widths in each partition.
5. The desiccant rotor core as claimed in claim 1, wherein: the two layers of fiber felt layers which are attached are rolled along the length direction to form a porous honeycomb cylindrical structure.
6. The desiccant rotor core as claimed in claim 1, wherein: the moisture absorption material is any one of a molecular sieve, silica gel, a metal organic framework material and a high molecular moisture absorption material, wherein the molecular sieve is a 3A molecular sieve, a 4A molecular sieve or a 13X molecular sieve, the metal organic framework material is an aluminum-based organic framework material, and the high molecular moisture absorption material is polyvinyl alcohol with the molecular weight of 25000-35000 or polyethylene glycol with the molecular weight of 200-600.
7. A method of manufacturing a desiccant rotor core according to any one of claims 1 to 6, comprising the steps of:
1) Sequentially spraying slurry containing moisture absorbing materials with different dehydration temperatures on a flat-plate type fiber felt according to the width direction, gradually increasing or decreasing the dehydration temperature, and then forming to obtain a corrugated fiber felt layer;
2) Sequentially spraying slurry containing moisture absorbing materials with different dehydration temperatures on a flat-plate fiber felt according to the width direction, and gradually increasing or decreasing the dehydration temperature to obtain a flat-plate fiber felt layer;
3) The corrugated fiber felt layer obtained in the step 1) is attached to the flat fiber felt layer obtained in the step 2), so that the variation trend of the dehydration temperature of the moisture absorption material on the two fiber felt layers is consistent;
4) Winding along the length direction of the fiber felt layer to obtain a wheel core blank;
5) And drying the wheel core blank to obtain the dehumidification wheel core.
8. The method according to claim 7, wherein the slurry in step 1) and step 2) is a mixture of a hygroscopic material, an inorganic component and water, the hygroscopic material is 5-50wt% and the inorganic component is 5-20wt%, the hygroscopic material is any one of a molecular sieve, silica gel, a metal organic framework material and a high molecular hygroscopic material, the molecular sieve is a 3A molecular sieve, a 4A molecular sieve or a 13X molecular sieve, the metal organic framework material is an aluminum-based organic framework material, the high molecular hygroscopic material is polyvinyl alcohol with a molecular weight of 25000-35000 or polyethylene glycol with a molecular weight of 200-600, and the inorganic component is any one of a silica sol, an alumina sol, a silica alumina sol and a pseudo-boehmite or a mixture of several of them.
9. The method according to claim 7, wherein the corrugated fiber felt layer is obtained by pressing and forming in a corrugating machine in the step 1), the temperature of the corrugating machine is 160-220 ℃ during forming, and the corrugated fiber felt layer is rolled in a rolling machine in the step 4).
10. The method according to claim 7, wherein the drying in step 5) is performed at 30 to 60 ℃ for 24 to 48 hours, and then at 100 to 120 ℃ for 10 to 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311486225.8A CN117515684A (en) | 2023-11-09 | 2023-11-09 | Dehumidification rotating wheel core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311486225.8A CN117515684A (en) | 2023-11-09 | 2023-11-09 | Dehumidification rotating wheel core and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117515684A true CN117515684A (en) | 2024-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311486225.8A Pending CN117515684A (en) | 2023-11-09 | 2023-11-09 | Dehumidification rotating wheel core and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117515684A (en) |
-
2023
- 2023-11-09 CN CN202311486225.8A patent/CN117515684A/en active Pending
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