Drying equipment with controllable airflow intensity

Abstract

The utility model relates to the technical field of drying equipment, and discloses airflow intensity controllable drying equipment which comprises a drying chamber, an air supply channel, an air collecting cover and a first fan. Airflow in the drying chamber is guided out to the air guide channel through the air collecting cover and is guided out of the drying chamber through the air guide channel; in the process, due to the fact that the air inlet is formed in the bottom of the drying chamber or the position, close to the bottom of the drying chamber, of the side wall of the drying chamber, drying airflow can vertically penetrate through the to-be-dried materials, the air collecting cover is arranged, airflow in the drying area under the air collecting cover is gradually gathered below the air collecting cover, and compared with airflow in other areas, the airflow is more concentrated; the flowing intensity of the air flow is large, and vertical strong-convection heat exchange of the area can be achieved. On the basis, a plurality of gas collecting hoods can be arranged in the length direction of the drying chamber, so that the airflow intensity partition control of the corresponding areas of the gas collecting hoods is realized, and the purpose of drying the to-be-dried materials at different positions with different intensities is achieved.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to a drying equipment with controllable airflow intensity. Background Technology

[0002] In existing technologies, traditional drying equipment generally suffers from problems such as uneven airflow distribution, low thermal efficiency, and unadjustable drying intensity. Especially when processing materials of different types or distribution states, a fixed air supply structure is often used, resulting in uniform airflow intensity in the drying area. This makes it impossible to carry out differentiated drying based on the characteristics of the materials, and it is easy to cause local over-drying or under-drying. Utility Model Content

[0003] In view of this, the present invention provides a drying device with controllable airflow intensity, which can realize vertical strong convection heat transfer in the drying area directly below the air collecting hood.

[0004] To achieve the above technical effects, this utility model provides a drying device with controllable airflow intensity, comprising:

[0005] A drying chamber is used to provide a space and drying conditions for materials to be dried. The drying chamber is equipped with an air inlet, which is located at the bottom of the drying chamber or on the side wall of the drying chamber near the bottom of the drying chamber.

[0006] An air supply duct, which is connected to the air inlet, is used to provide drying airflow into the drying chamber;

[0007] An air collecting hood is installed at the top of the drying chamber. The air collecting hood has a conical structure, with the large-diameter end of the air collecting hood facing the bottom of the drying chamber and the small-diameter end of the air collecting hood connected to the air guide channel.

[0008] The first fan is connected to the air guide channel and is used to guide the airflow inside the drying chamber to the outside of the drying chamber through the air collection hood and the air guide channel.

[0009] Furthermore, a slide rail is provided along the length of the drying chamber, and multiple air collecting hoods are mounted on the sliding components of the slide rail. The slide rail is used to adjust the relative position of the air collecting hoods in the drying chamber.

[0010] Furthermore, a return air channel is provided between the air guide channel and the air supply channel, and the return air channel is used to guide all or part of the airflow from the air guide channel into the air supply channel.

[0011] Furthermore, the air supply channel is equipped with a second fan.

[0012] Furthermore, a perforated plate is provided near the bottom of the drying chamber, which divides the drying chamber into an upper chamber and a lower chamber. The air inlet communicates with the lower chamber, and the material to be dried is located in the upper chamber.

[0013] Furthermore, multiple heat-conducting sheets are fixed to the bottom of the perforated plate.

[0014] Furthermore, the heat-conducting plates are arranged in an array, and the heat-conducting plates are arranged along the air outlet direction.

[0015] Furthermore, there are multiple air inlets, and air inlets are respectively provided on both sides of the drying chamber along the length direction. The air inlets on both sides are symmetrically or staggeredly distributed.

[0016] Furthermore, it also includes a heat pump, wherein the condenser of the heat pump is used to heat the airflow in the air supply channel, and the evaporator of the heat pump is used to condense and dehumidify all or part of the airflow in the air guide channel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting the air inlet at the bottom of the drying chamber or on the side wall of the drying chamber near the bottom of the drying chamber, the drying airflow is conducive to passing vertically through the material to be dried. In addition, the presence of the air collecting hood makes the airflow in the drying area directly below the air collecting hood gradually converge below the air collecting hood. Compared with the airflow in other areas, the airflow is more concentrated and the flow intensity is greater, which can realize vertical strong convection heat transfer in this area.

[0018] This invention can also be equipped with multiple gas collection hoods along the length of the drying chamber, thereby achieving zoned control of airflow intensity in the corresponding areas of the gas collection hoods, so as to achieve the purpose of drying materials at different locations with different intensities. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the drying equipment with controllable airflow intensity in the embodiment;

[0021] Figure 2 This is a schematic diagram of the installation structure of the perforated plate and the heat-conducting sheet in the embodiment;

[0022] The components are as follows: 1. Drying chamber; 101. Upper chamber; 102. Lower chamber; 2. Air inlet; 3. Air supply channel; 4. Air collector hood; 5. Air guide channel; 6. First fan; 7. Slide rail; 8. Return air channel; 9. Second fan; 10. Perforated plate; 11. Heat-conducting plate; 12. Condenser; 13. Evaporator. Detailed Implementation

[0023] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0024] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Example

[0026] See Figure 1 and Figure 2 A drying device with controllable airflow intensity, comprising:

[0027] Drying chamber 1 is used to provide a space and drying conditions for the materials to be dried. The drying chamber 1 is provided with an air inlet 2, which is located at the bottom of the drying chamber 1 or on the side wall of the drying chamber 1 near the bottom of the drying chamber 1.

[0028] Air supply channel 3, which is connected to air inlet 2, is used to provide drying airflow into drying chamber 1;

[0029] An air collecting hood 4 is located at the top of the drying chamber 1. The air collecting hood 4 has a conical structure. The large-diameter end of the air collecting hood 4 faces the bottom of the drying chamber 1, and the small-diameter end of the air collecting hood 4 is connected to the air guide channel 5.

[0030] The first fan 6 is connected to the air guide channel 5 and is used to guide the airflow in the drying chamber 1 to the outside of the drying chamber 1 through the air collection hood 4 and the air guide channel 5.

[0031] In this embodiment, by setting up an air collecting hood 4 inside the drying chamber 1, during the operation of the first fan 6, the airflow inside the drying chamber 1 is guided to the air guide channel 5 through the air collecting hood 4, and then led out of the drying chamber 1 through the air guide channel 5. During this process, since the air inlet 2 is located at the bottom of the drying chamber 1 or near the bottom of the drying chamber 1 on the side wall of the drying chamber 1, it is beneficial for the drying airflow to pass vertically through the material to be dried. In addition, the presence of the air collecting hood 4 causes the airflow in the drying area directly below the air collecting hood 4 to gradually converge below the air collecting hood 4. Compared with the airflow in other areas, the airflow is more concentrated and the flow intensity is greater, which can achieve strong vertical convection heat transfer in this area. Based on this, multiple air collecting hoods can be set along the length of the drying chamber 1, thereby realizing zoned control of the airflow intensity in the corresponding area of ​​the air collecting hood, so as to achieve the purpose of drying the material to be dried at different intensities in different locations.

[0032] In this embodiment, a slide rail 7 is arranged along the length of the drying chamber 1, and multiple air collecting hoods 4 are mounted on the sliding components of the slide rail 7. The slide rail 7 is used to adjust the relative position of the air collecting hoods 4 in the drying chamber 1. By adjusting the position of the air collecting hoods 4 on the slide rail 7, the position of the drying area directly below the air collecting hoods 4 can be flexibly changed, thereby achieving targeted drying of materials to be dried in different locations. This not only improves the flexibility of drying but also makes the drying equipment more widely applicable, further enhancing the practicality and convenience of the drying equipment.

[0033] In this embodiment, a return air channel 8 is provided between the air guide channel 5 and the air supply channel 3. The return air channel 8 is used to guide all or part of the airflow from the air guide channel 5 into the air supply channel 3, so as to achieve the mixing of return air and fresh air in the air supply channel 3. This can realize the recycling of the high temperature and high humidity airflow discharged from the drying chamber 1, and effectively improve the heat utilization efficiency.

[0034] In this embodiment, the air supply channel 3 is equipped with a second fan 9. The first fan 6 draws air from the drying chamber 1, leading the high-temperature, high-humidity airflow out of the drying chamber 1. The second fan 9 blows air, introducing the hot air from the air supply channel 3 into the drying chamber 1, thus supplying the drying airflow. Through the coordinated operation of the first fan 6 and the second fan 9, the airflow circulation and temperature distribution within the drying chamber 1 are jointly controlled. In particular, by adjusting the rotational speeds of the first fan 6 and the second fan 9, the airflow intensity and temperature in the area below the corresponding air collection hood within the drying chamber 1 can be precisely controlled, thereby achieving precise drying of different materials.

[0035] In this embodiment, a perforated plate 10 is provided near the bottom of the drying chamber 1, dividing the drying chamber 1 into an upper chamber 101 and a lower chamber 102. The air inlet 2 communicates with the lower chamber 102, and the material to be dried is located in the upper chamber 101. Hot air entering the drying chamber 1 from the air supply channel 3 is evenly distributed through the perforated plate 10 and blown onto the material to be dried in the upper chamber 101, achieving a uniform distribution of airflow at the bottom of the drying chamber 1 and strong convective heat transfer for different areas in the upper airflow.

[0036] In this embodiment, multiple heat-conducting plates 11 are fixed to the bottom of the perforated plate 10. These plates improve the heat exchange efficiency of the airflow within the lower chamber 102, further enhancing the uniformity of the temperature distribution of the drying airflow at the bottom of the drying chamber 1. This allows for the uniform and rapid transfer of heat from the lower chamber 102 to the perforated plate 10, further improving heat utilization efficiency. Furthermore, the heat-conducting plates 11 also strengthen the structural integrity of the perforated plate 10 at the bottom of the drying chamber 1, preventing deformation of the perforated plate 10 caused by falling dried material.

[0037] In this embodiment, the heat-conducting plates 11 are arranged in an array, and the heat-conducting plates 11 are arranged along the air outlet direction of the air inlet 2. This arrangement can, on the one hand, further increase the contact area between the high-temperature, low-humidity airflow in the lower chamber 102 and the heat-conducting plates 11, thereby further improving the temperature uniformity of the airflow in the lower chamber 102; on the other hand, it can also enable the heat-conducting plates 11 to more effectively guide the hot air entering the lower chamber 102 through the air inlet 2, and the airflow resistance is small.

[0038] In this embodiment, there are multiple air inlets 2, with air inlets 2 respectively provided on both sides of the drying chamber 1 along its length. The air inlets 2 on both sides are symmetrically or staggeredly distributed. This allows hot air to enter from both sides of the drying chamber 1 simultaneously, achieving a more uniform airflow distribution. When the air inlets 2 are symmetrically distributed, it ensures that the airflow intensity on both sides of the drying chamber 1 is consistent, avoiding over- or under-drying on one side. When the air inlets 2 are staggered, a more complex airflow path can be formed, further increasing the heat exchange efficiency of the hot air on both sides in the lower chamber 102 and improving the uniformity of the airflow temperature in the lower chamber 102.

[0039] In this embodiment, a heat pump is also included. The condenser 12 of the heat pump is used to heat the airflow in the air supply channel 3, and the evaporator 13 of the heat pump is used to condense and dehumidify all or part of the airflow in the air guide channel 5. The condenser 12 of the heat pump heats the airflow in the air supply channel 3, providing a stable high-temperature, low-humidity airflow to the drying chamber 1; while the evaporator 13 of the heat pump condenses and dehumidifies the airflow in the air guide channel 5, effectively removing excess moisture from the airflow and ensuring the drying effect. This integrated heating and dehumidification design allows the drying equipment to more precisely control the airflow intensity and temperature and humidity conditions in the drying chamber 1, meeting different drying needs.

[0040] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A drying device with controllable airflow intensity, characterized in that, include: The drying chamber (1) is used to provide a space and drying conditions for the materials to be dried. The drying chamber (1) is provided with an air inlet (2). The air inlet (2) of the drying chamber (1) is located at the bottom of the drying chamber (1) or at the side wall of the drying chamber (1) near the bottom of the drying chamber (1). An air supply channel (3) is connected to the air inlet (2) and is used to provide drying airflow into the drying chamber (1); An air collecting hood (4) is set at the top of the drying chamber (1). The air collecting hood (4) has a conical structure. The large diameter end of the air collecting hood (4) faces the bottom of the drying chamber (1), and the small diameter end of the air collecting hood (4) is connected to the air guide channel (5). The first fan (6) is connected to the air guide channel (5) and is used to guide the airflow in the drying chamber (1) to the outside of the drying chamber (1) through the air collection hood (4) and the air guide channel (5).

2. The drying equipment according to claim 1, characterized in that, The drying chamber (1) is provided with a slide rail (7) along its length. Multiple air collecting hoods (4) are installed on the sliding components of the slide rail (7). The slide rail (7) is used to adjust the relative position of the air collecting hoods (4) in the drying chamber (1).

3. The drying equipment according to claim 1, characterized in that, A return air channel (8) is provided between the air guide channel (5) and the air supply channel (3), and the return air channel (8) is used to guide all or part of the airflow from the air guide channel (5) into the air supply channel (3).

4. The drying equipment according to claim 1, characterized in that, The air supply channel (3) is equipped with a second fan (9).

5. The drying equipment according to claim 1, characterized in that, A perforated plate (10) is provided near the bottom of the drying chamber (1), which divides the drying chamber (1) into an upper chamber (101) and a lower chamber (102). The air inlet (2) communicates with the lower chamber (102), and the material to be dried is located in the upper chamber (101).

6. The drying equipment according to claim 5, characterized in that, Multiple heat-conducting plates (11) are fixed to the bottom of the perforated plate (10).

7. The drying equipment according to claim 6, characterized in that, The heat-conducting plates (11) are arranged in an array, and the heat-conducting plates (11) are set along the air outlet direction of the air inlet (2).

8. The drying equipment according to claim 1, characterized in that, The number of air inlets (2) is multiple. Air inlets (2) are respectively provided on both sides of the drying chamber (1) along the length direction. The air inlets (2) on both sides are symmetrically or staggeredly distributed.

9. The drying equipment according to any one of claims 1-8, characterized in that, It also includes a heat pump, the condenser (12) of which is used to heat the airflow in the air supply channel (3), and the evaporator (13) of which is used to condense and dehumidify all or part of the airflow in the air guide channel (5).

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