Drying device

Abstract

The utility model discloses a drying device which comprises a first drying box, a second drying box, a heat exchange component, a first air supply pipeline and a second air supply pipeline. The first drying box and the second drying box are oppositely arranged, the first drying box and the second drying box are each provided with a drying cavity, the drying cavities are filled with drying agents, the first drying box is provided with a first air inlet and a first air outlet which are communicated with the drying cavities, and the second drying box is provided with a second air inlet and a second air outlet which are communicated with the drying cavities; the air inlet end of the first air supply pipeline is connected with the first air inlet, and the air inlet end of the second air supply pipeline is connected with the second air inlet; opposite side walls of the first drying box and the second drying box are provided with openings, and the first end face and the second end face of the heat exchange component are correspondingly embedded in the openings of the two side walls respectively. The technical scheme of the utility model aims to realize synchronous dehumidification and cooling of humid air and synchronous adsorption and dehydration regeneration treatment of a drying agent.

Description

Technical Field

[0001] The utility model relates to the technical field of drying, in particular to a drying device. Background Art

[0002] Solid dehumidification technology is a technology that uses porous solid materials to absorb water vapor in the air and reduce the moisture content of the air. It is widely used in industrial, commercial and residential environments to improve air quality and meet the humidity control requirements of specific production environments.

[0003] However, during the dehumidification process of solid desiccant, dehumidification and cooling are not synchronized, which can easily lead to an increase in desiccant temperature and a decrease in dehumidification efficiency. The existing technology often uses a regenerator to recover energy for heating the desiccant to promote moisture desorption, but the structure is relatively complex and there is energy loss during the reheating process. Summary of the Invention

[0004] The main purpose of the utility model is to provide a drying device, which aims to realize synchronous dehumidification and cooling of wet air, and synchronous adsorption and dehydration regeneration treatment of desiccant.

[0005] To achieve the above-mentioned purpose, the drying device proposed in the present invention includes a first drying box, a second drying box, a heat exchange component, a first air supply duct and a second air supply duct;

[0006] The first drying box and the second drying box are arranged opposite to each other, and each of the first drying box and the second drying box is provided with a drying chamber filled with a desiccant. The first drying box is provided with a first air inlet and a first air outlet communicating with the drying chamber, and the second drying box is provided with a second air inlet and a second air outlet communicating with the drying chamber. The air inlet end of the first air supply duct is connected to the first air inlet, and the air inlet end of the second air supply duct is connected to the second air inlet.

[0007] The heat exchange component includes a first end surface and a second end surface, and the first end surface and the second end surface can be used for cooling or heating;

[0008] The opposite side walls of the first drying box and the second drying box are both provided with openings, and the first end surface and the second end surface of the heat exchange member are respectively correspondingly engaged with the openings of the two side walls.

[0009] In some embodiments of the present invention, the drying device further includes a first three-way valve and a second three-way valve, each of the first three-way valve and the second three-way valve including an air inlet and two air outlets, the air outlet end of the first air supply duct is connected to the air inlet of the first three-way valve, and the air outlet end of the second air supply duct is connected to the air inlet of the second three-way valve;

[0010] One exhaust port of the first three-way valve and one exhaust port of the second three-way valve are both connected to a delivery pipe;

[0011] The first three-way valve and another air outlet are connected to the delivery pipe connected to the second three-way valve through a pipeline, and the second three-way valve and another air outlet are connected to the delivery pipe connected to the first three-way valve through a pipeline.

[0012] In some embodiments of the present invention, both the first air supply duct and the second air supply duct are provided with axial flow fans.

[0013] In some embodiments of the present invention, the first drying box and the second drying box are both provided with a plurality of heat dissipation ribs.

[0014] In some embodiments of the present invention, the desiccant is a spherical structure.

[0015] In some embodiments of the present invention, the heat dissipation ribs are provided with a plurality of arc-shaped grooves.

[0016] In some embodiments of the present invention, the heat dissipation ribs are wavy in shape.

[0017] In some embodiments of the present invention, the surface of the heat dissipation fins is coated with a hydrophobic coating.

[0018] In some embodiments of the present invention, the heat exchange component is a thermoelectric cooling fin.

[0019] In the technical solution of the present invention, the first drying box and the second drying box absorb moisture from the air passing through the drying chamber through the desiccant, thereby drying the air. The first end face and the second end face of the heat exchange component respectively perform cooling and heating operations. The first end face absorbs the latent heat of condensation released when water vapor condenses and transfers this latent heat to the second end face, so that the first air supply duct discharges a cooled and dry airflow, achieving the effect of reducing enthalpy and dehumidifying. The second end face simultaneously heats the second drying box to promote the desorption of moisture in the desiccant, and the moisture adsorbed by the desiccant is discharged from the second air supply duct along with the high-temperature airflow, thereby regenerating the desiccant. When the desiccant in the first drying box is saturated with moisture, the cooling and heating ends of the heat exchange component are switched. At this time, the desiccant in the first drying box is heated and dehydrated, and the second drying box is low-temperature dried. By alternating these operations, the first drying box and the second drying box can respectively discharge low-temperature dry air and dehydrate and regenerate the desiccant. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a schematic structural diagram of the drying device of the utility model;

[0022] Figure 2 This is a schematic structural diagram of the first drying box of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the heat dissipation ribs of the present invention.

[0024] Description of Figure Numbers:

[0025] 100, first drying oven; 200, second drying oven; 300, heat exchange component; 400, first air supply duct; 500, second air supply duct; 600, first three-way valve; 700, second three-way valve; 800, heat dissipation ribs;

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0030] See attached Figure 1-3 The present invention provides a drying device, comprising a first drying box 100, a second drying box 200, a heat exchange component 300, a first air supply duct 400 and a second air supply duct 500;

[0031] The first drying box 100 and the second drying box 200 are arranged opposite to each other. Both the first drying box 100 and the second drying box 200 are provided with a drying chamber filled with a desiccant. The first drying box 100 is provided with a first air inlet and a first air outlet communicated with the drying chamber, and the second drying box 200 is provided with a second air inlet and a second air outlet communicated with the drying chamber; the air inlet end of the first air supply duct 400 is connected to the first air inlet, and the air inlet end of the second air supply duct 500 is connected to the second air inlet; preferably, the first air outlet and the first air inlet, and the second air outlet and the second air inlet are relatively staggered.

[0032] The heat exchange component 300 includes a first end surface and a second end surface, and the first end surface and the second end surface can perform cooling or heating;

[0033] The opposite side walls of the first drying box 100 and the second drying box 200 are both provided with openings, and the first end surface and the second end surface of the heat exchange component 300 are respectively correspondingly engaged with the openings of the two side walls.

[0034] Based on the above technical features, the first drying box 100 and the second drying box 200 use desiccant to absorb moisture from the air passing through the drying chamber, thereby drying the air. The first and second end surfaces of the heat exchange member 300 respectively perform cooling and heating operations. The first end surface absorbs the latent heat of condensation released when water vapor condenses and transfers this latent heat to the second end surface, causing the first air supply duct 400 to discharge cooled and dry air, achieving the effect of reducing enthalpy and dehumidification. The second end surface heats the second drying box 200 to promote moisture desorption. The moisture adsorbed by the desiccant is discharged from the second air supply duct 500 along with the high-temperature air flow, thereby regenerating the desiccant. When the desiccant in the first drying box 100 is saturated with moisture, the cooling and heating ends of the heat exchange member 300 are switched. At this time, the desiccant in the first drying box 100 is heated and dehydrated, while the second drying box 200 is low-temperature dried. By alternating these operations, the first drying box 100 and the second drying box 200 can respectively discharge low-temperature dry air and dehydrate the desiccant.

[0035] Furthermore, the drying device further includes a first three-way valve 600 and a second three-way valve 700, each of which includes an air inlet and two air outlets. The air outlet end of the first air supply duct 400 is connected to the air inlet of the first three-way valve 600, and the air outlet end of the second air supply duct 500 is connected to the air inlet of the second three-way valve 700.

[0036] One exhaust port of the first three-way valve 600 and the second three-way valve 700 are both connected to a delivery pipe;

[0037] The first three-way valve 600 is connected to the other exhaust port through a pipeline connected to the delivery pipe connected to the second three-way valve 700, and the second three-way valve 700 is connected to the other exhaust port through a pipeline connected to the delivery pipe connected to the first three-way valve 600; the delivery pipes of the first three-way valve 600 and the second three-way valve 700 can be in a fixed gas division state, and through the switching control of the first three-way valve 600 and the second three-way valve 700, when the hot and cold ends of the heat exchange component 300 are switched, the first three-way valve 600 and the second three-way valve 700 can be controlled to achieve that the dry low-temperature gas can be fixedly output through the delivery pipe connected to the first three-way valve 600, and the precipitated moisture is fixedly output along the delivery pipe connected to the second three-way valve 700.

[0038] Specifically, the first air supply duct 400 and the second air supply duct 500 are both provided with axial flow fans, which provide power for exhausting gas.

[0039] Furthermore, the first drying box 100 and the second drying box 200 are also provided with a plurality of heat dissipation ribs 800, which improve the overall heat exchange effect of the drying box. In this embodiment, a plurality of partitions are arranged in between the first drying box 100 and the second drying box 200, and heat dissipation ribs 800 are arranged on the partitions.

[0040] The desiccant is spherical in structure, which increases the contact area between the desiccant and the air and improves the drying efficiency.

[0041] Furthermore, the heat dissipation ribs 800 are provided with a plurality of arc grooves or the heat dissipation ribs 800 are wavy in shape, which solves the matching contact problem between the curved surface of the desiccant and the flat heat dissipation rib plane, increases the contact area between the spherical desiccant and the heat dissipation ribs 800, and further improves the heat exchange effect.

[0042] Specifically, the surface of the heat sink rib 800 is coated with a hydrophobic coating, which can change the condensation mode of water vapor from film condensation to bead condensation, thereby increasing the contact area between water vapor and the heat sink rib 800 and reducing the heat transfer resistance between water vapor and the heat sink rib 800.

[0043] In this embodiment, the heat exchange component 300 is a thermoelectric cooling plate, which can achieve the cooling and heating effects of the first end face and the second end face by switching the direction of the current. The heat pump characteristics of the thermoelectric cooling plate are used to recover the latent heat of condensation and transfer it to the hot end, thereby realizing energy recovery. The structure is simple and compact, and the energy recovery loss is small.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A drying device, characterized in that: It includes a first drying box, a second drying box, a heat exchange component, a first air supply duct and a second air supply duct; The first drying box and the second drying box are arranged opposite to each other, and each of the first drying box and the second drying box is provided with a drying chamber filled with a desiccant. The first drying box is provided with a first air inlet and a first air outlet communicating with the drying chamber, and the second drying box is provided with a second air inlet and a second air outlet communicating with the drying chamber. The air inlet end of the first air supply duct is connected to the first air inlet, and the air inlet end of the second air supply duct is connected to the second air inlet. The heat exchange component includes a first end surface and a second end surface, and the first end surface and the second end surface can be used for cooling or heating; The opposite side walls of the first drying box and the second drying box are both provided with openings, and the first end surface and the second end surface of the heat exchange member are respectively correspondingly engaged with the openings of the two side walls.

2. The drying device according to claim 1, wherein The drying device further includes a first three-way valve and a second three-way valve, each of the first three-way valve and the second three-way valve including an air inlet and two air outlets, the air outlet end of the first air supply duct being connected to the air inlet of the first three-way valve, and the air outlet end of the second air supply duct being connected to the air inlet of the second three-way valve; One exhaust port of the first three-way valve and one exhaust port of the second three-way valve are both connected to a delivery pipe; The first three-way valve and another air outlet are connected to the delivery pipe connected to the second three-way valve through a pipeline, and the second three-way valve and another air outlet are connected to the delivery pipe connected to the first three-way valve through a pipeline.

3. The drying device according to claim 1, wherein The first air supply duct and the second air supply duct are both provided with axial flow fans.

4. The drying device according to claim 1, wherein The first drying box and the second drying box are both provided with a plurality of heat dissipation ribs.

5. The drying device according to claim 1, wherein The desiccant is a spherical structure.

6. The drying device according to claim 4, characterized in that The heat dissipation ribs are provided with a plurality of arc-surface grooves.

7. The drying device according to claim 4, characterized in that The surfaces of the heat dissipation fins are coated with a hydrophobic coating.

8. The drying device according to claim 1, wherein The heat exchange component is a thermoelectric cooling plate.

9. The drying device according to claim 4, wherein: The heat dissipation ribs are in a wave shape.

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