Air supply equipment capable of uniformly mixing air and drying equipment applied by air supply equipment

Abstract

The utility model relates to the technical field of air supply equipment capable of uniformly mixing air, and discloses air supply equipment capable of uniformly mixing air and drying equipment applying the same, 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 technical field of air supply equipment with uniform air mixing, specifically to an air supply equipment with uniform air mixing and its application in drying equipment. Background Technology

[0002] Traditional air supply equipment generally suffers from insufficient mixing and uneven temperature distribution when mixing airflows of different temperatures or properties. In particular, when two airflows are directly mixed in parallel in the same direction, the mixing efficiency is low due to insufficient momentum exchange, which easily leads to local temperature differences at the air outlet.

[0003] In addition, existing technologies mostly adopt a single air intake path combined with a simple guide plate structure, which cannot achieve three-dimensional airflow interaction in a limited space. This results in the mixing intensity being significantly affected by wind speed fluctuations, making it difficult to maintain stable temperature uniformity output. Some airflow is discharged directly without being fully mixed, which seriously restricts the air quality of the air supply equipment. Utility Model Content

[0004] In view of this, the present invention provides an air supply device with uniform air mixing and a drying device for the same application, which can realize vertical strong convection heat exchange in the drying area directly below the air collecting hood.

[0005] To achieve the above-mentioned technical effects, this utility model provides an air supply device with uniform air mixing, comprising:

[0006] A chassis, wherein a partition is provided inside the chassis, the partition dividing the inner cavity of the chassis into an air inlet cavity and a mixing cavity, a first air inlet channel is provided at the chassis position corresponding to the air inlet cavity, and a first air outlet channel is provided at the chassis position corresponding to the mixing cavity.

[0007] A ventilation hole is provided on the partition plate, and the ventilation hole is used to connect the air inlet chamber and the air mixing chamber.

[0008] The fan is used to drive the airflow in the air inlet chamber to the air mixing chamber;

[0009] The second air inlet channel is located at the chassis position corresponding to the mixing chamber. The air outlet of the second air inlet channel faces the airflow from the ventilation hole. The angle between the airflow entering the mixing chamber through the ventilation hole and the airflow in the second air inlet channel is 0° to 180°, excluding 0°.

[0010] Furthermore, an expansion cylinder is provided inside the mixing chamber along the airflow direction of the ventilation hole. The large-diameter end of the expansion cylinder is sealed to the inner wall of the mixing chamber, and the small-diameter end of the expansion cylinder extends to a position close to the ventilation hole. The air outlet of the second air inlet channel is located between the ventilation hole and the large-diameter end of the expansion cylinder.

[0011] Furthermore, the chassis has a rectangular structure, and the ventilation holes and the second air inlet channel are both arranged along the length of the chassis; the second air inlet channel is a static pressure box arranged along the length of the chassis, and the static pressure box is provided with a second air outlet channel with the airflow direction facing the airflow from the ventilation holes.

[0012] Furthermore, an air direction adjustment device is installed at the second air outlet duct.

[0013] Furthermore, the wind direction adjustment device is an adjustable guide vane.

[0014] To achieve the above-mentioned technical effects, the present invention also provides a drying device, including a drying chamber, wherein the drying chamber is provided with an air inlet and an air outlet, the drying device uses the aforementioned air supply device, and the air inlet of the drying chamber is connected to a first air outlet channel.

[0015] Furthermore, a return air channel is also provided at the chassis position corresponding to the air inlet cavity. The return air channel is connected to the air outlet of the drying chamber and is used to guide all or part of the airflow from the air outlet into the air inlet cavity.

[0016] Furthermore, it also includes a heat pump, wherein the condenser of the heat pump is disposed inside the casing for heating the airflow entering the casing, and the evaporator of the heat pump is used to condense and dehumidify all or part of the airflow discharged from the air outlet.

[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 air supply equipment for uniform air mixing in the embodiment.

[0021] Figure 2 This is a schematic diagram of the drying equipment with an air supply device in the embodiment;

[0022] The components are as follows: 1. Chassis; 2. Partition; 3. Air inlet cavity; 4. Mixing cavity; 5. First air inlet channel; 6. First air outlet channel; 7. Ventilation hole; 8. Fan; 9. Second air inlet channel; 10. Expanding cylinder; 11. Air direction adjustment device; 12. Drying chamber; 13. Air inlet; 14. Air outlet; 15. Return air channel; 16. Condenser; 17. 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 uniformly mixed air supply device, comprising:

[0027] The chassis 1 has a partition 2 inside, which divides the inner cavity of the chassis 1 into an air inlet chamber 3 and a mixing chamber 4. The position of the chassis 1 corresponding to the air inlet chamber 3 is provided with a first air inlet channel 5, and the position of the chassis 1 corresponding to the mixing chamber 4 is provided with a first air outlet channel 6.

[0028] Ventilation hole 7 is provided on the partition plate 2, and the ventilation hole 7 is used to connect the air inlet chamber 3 and the air mixing chamber 4;

[0029] Fan 8, which is used to drive the airflow in the air inlet chamber 3 into the air mixing chamber 4;

[0030] The second air inlet channel 9 is located at the position of the chassis 1 corresponding to the mixing chamber 4. The air outlet of the second air inlet channel 9 faces the airflow from the ventilation hole 7. The angle between the airflow entering the mixing chamber 4 through the ventilation hole 7 and the airflow from the second air inlet channel 9 is in the range of 0° to 180°, excluding 0°.

[0031] In this embodiment, the chassis 1 is divided into an air supply chamber and a mixing chamber 4 by a partition 2. During the operation of the fan 8, part of the airflow enters the air supply chamber 3 from the first air inlet channel 5 and then enters the mixing chamber 4 through the ventilation hole 7; another part of the airflow directly enters the air supply chamber 3 from the second air inlet channel 9. The airflow from the ventilation hole 7 entering the mixing chamber 4 is mixed with the airflow from the second air inlet channel 9 at a certain angle. The angle range is 0° to 180°, excluding 0°. By setting the angle between the second air inlet channel 9 and the airflow from the ventilation hole 7, the two airflows can form a vortex in the mixing chamber 4, which can achieve efficient mixing of the two airflows and ensure the temperature uniformity of the airflow output from the first air outlet channel 6 of the chassis 1.

[0032] In this embodiment, an expansion cylinder 10 is provided inside the mixing chamber 4 along the airflow direction of the ventilation hole 7. The large-diameter end of the expansion cylinder 10 is sealed to the inner wall of the mixing chamber 4, and the small-diameter end of the expansion cylinder 10 extends to a position close to the ventilation hole 7. The outlet end of the second air inlet channel 9 is located between the ventilation hole 7 and the large-diameter end of the expansion cylinder 10. When the airflow output from the ventilation hole 7 enters the mixing chamber 4, it forms a jet that enters the expansion cylinder 10, creating a negative pressure near the outer wall of the expansion cylinder 10. This creates a suction effect on the airflow at the outlet end of the second air inlet channel 9, and the airflow at the outlet end of the second air inlet channel 9 also enters the expansion cylinder 10. The two airflows mix and enhance their mutual mixing effect as they flow through the expansion cylinder 10 and at its front end, thereby further ensuring the temperature uniformity of the mixed airflow. As described in this embodiment, the conical inner wall of the expanding cylinder 10 forms a gradually expanding angle of 5°-30° with the axis of the mixing chamber 4. This gradually expanding structure can guide the airflow of the second air inlet channel 9 to diffuse tangentially along the cylinder wall. When the jet from the ventilation hole 7 and the tangential airflow from the second air inlet channel 9 converge inside the expanding cylinder 10, the two opposing gas flows will form a spiral forward composite flow field within the conical space.

[0033] In this embodiment, the chassis 1 has a rectangular structure, and both the ventilation hole 7 and the second air inlet channel 9 are arranged along the length of the chassis 1. The second air inlet channel 9 is a static pressure box arranged along the length of the chassis 1, and the static pressure box is provided with a second air outlet channel with the airflow direction facing the airflow from the ventilation hole 7. In particular, for the drying chamber 12 structure which is relatively long in the length direction, the use of a static pressure box design helps to stabilize and evenly distribute the airflow in the second air inlet channel 9, ensuring that the airflow can enter the mixing chamber 4 evenly and stably.

[0034] In this embodiment, an airflow direction adjustment device 11 is provided at the second air outlet channel. This airflow direction adjustment device 11 can flexibly adjust the airflow direction of the second air outlet channel, ensuring that the airflow is more precisely oriented towards the airflow direction of the ventilation hole 7, promoting efficient mixing of the two airflows. By precisely controlling the airflow direction at the outlet end of the second air outlet channel (such as being perpendicular to the airflow of the ventilation hole 7 or being set at a large angle to it), the flow state of the airflow in the mixing chamber 4 can be optimized as needed, ensuring the mixing effect of the two airflows, thereby improving the mixing uniformity of the entire air supply equipment.

[0035] In this embodiment, the airflow direction adjustment device 11 is an adjustable guide vane. The airflow direction of the second air outlet channel can be precisely controlled by manually or automatically adjusting the angle of the vane. It should be noted that other mechanisms capable of adjusting the airflow direction of the second air outlet channel are also applicable to this invention.

[0036] Based on the same inventive concept, this embodiment also provides a drying device, including a drying chamber 12, wherein an air inlet 13 and an air outlet 14 are provided on the drying chamber 12, the drying device uses the aforementioned air supply device, and the air inlet 13 of the drying chamber 12 is connected to the first air outlet channel 6.

[0037] In this embodiment, the air outlet 14 of the drying chamber 12 is connected to the exhaust system. The drying airflow inside the drying chamber 12 is uniformly mixed by the air supply equipment and then introduced into the inner cavity of the drying chamber 12 through the air inlet 13, which can effectively improve the uniformity of the inlet air temperature and ensure the stability inside the drying chamber 12. In addition, the drying equipment may also include a temperature control system for adjusting the temperature inside the drying chamber 12 to meet the needs of different drying processes. The temperature control system can work in conjunction with the air supply equipment, automatically adjusting the operating status of the air supply equipment according to the set temperature parameters to ensure that the temperature inside the drying chamber 12 is stable and uniform.

[0038] In practical applications of drying equipment, the structure of the drying chamber 12 can be optimized according to specific needs. For example, for a drying chamber 12 that is long in the length direction, a segmented design can be adopted, dividing the drying chamber 12 into multiple independent drying areas. Each area is equipped with an air inlet 13 and an air outlet 14, and is equipped with corresponding air supply equipment and exhaust system.

[0039] In this embodiment, a return air channel 15 is also provided at the position of the chassis 1 corresponding to the air inlet cavity 3. The return air channel 15 is connected to the air outlet 14 of the drying chamber 12 and is used to guide all or part of the airflow from the air outlet 14 into the air inlet cavity 3. The setting of the return air channel 15 enables the high temperature and high humidity airflow in the drying chamber 12 to be effectively recovered and remixed, realizing the circulation of airflow in the drying chamber 12, improving energy utilization efficiency, and avoiding the waste of heat energy.

[0040] In this embodiment, a heat pump is also included. The condenser 16 of the heat pump is disposed inside the casing 1 and is used to heat the airflow entering the casing 1. The evaporator 17 of the heat pump is used to condense and dehumidify all or part of the airflow discharged from the air outlet 14.

[0041] 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 scope of the technology 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. An air supply device with uniform air mixing, characterized by, The application relates to a cabinet (1) provided with a partition plate (2) in the cabinet (1), the partition plate (2) divides the cavity in the cabinet (1) into an air inlet cavity (3) and an air mixing cavity (4), a first air inlet channel (5) is arranged at the position corresponding to the cabinet (1) of the air inlet cavity (3), and a first air outlet channel (6) is arranged at the position corresponding to the cabinet (1) of the air mixing cavity (4). A ventilation hole (7) is arranged on the partition plate (2), and the ventilation hole (7) is used for connecting the air inlet cavity (3) and the air mixing cavity (4). A fan (8) is used for driving the airflow in the air inlet cavity (3) into the air mixing cavity (4). A second air inlet channel (9) is arranged at the position corresponding to the cabinet (1) of the air mixing cavity (4), the air outlet end of the second air inlet channel (9) faces the air outlet airflow of the ventilation hole (7), and the included angle between the air outlet airflow of the ventilation hole (7) entering the air mixing cavity (4) and the airflow of the second air inlet channel (9) ranges from 0 to 180 degrees and does not include 0. A diameter expansion cylinder (10) is arranged in the air mixing cavity (4) along the direction of the air outlet airflow of the ventilation hole (7), the large-diameter end of the diameter expansion cylinder (10) is sealingly connected with the inner wall of the air mixing cavity (4), the small-diameter end of the diameter expansion cylinder (10) extends to a position close to the ventilation hole (7), and the air outlet end of the second air inlet channel (9) is located between the ventilation hole (7) and the large-diameter end of the diameter expansion cylinder (10).

2. The air supply device according to claim 1, characterized in that The cabinet (1) is of a rectangular structure, the ventilation hole (7) and the second air inlet channel (9) are arranged along the length direction of the cabinet (1), the second air inlet channel (9) is a static pressure box arranged along the length direction of the cabinet (1), and a second air outlet channel with airflow direction facing the air outlet airflow of the ventilation hole (7) is arranged on the static pressure box.

3. The air supply device according to claim 1, characterized in that A wind direction adjusting device (11) is arranged at the second air outlet channel.

4. The air supply device according to claim 3, characterized in that The wind direction adjusting device (11) is an adjustable guide vane cascade.

5. The air supply device according to claim 4, characterized in that The drying equipment applies the air supply equipment according to any one of claims 1-5, and the air inlet (13) of the drying chamber (12) is communicated with the first air outlet channel (6).

6. A drying apparatus comprising a drying chamber (12) provided with an air inlet (13) and an air outlet (14), characterized in that, A return air channel (15) is further arranged at the position corresponding to the cabinet (1) of the air inlet cavity (3), the return air channel (15) is communicated to the air outlet (14) of the drying chamber (12), and is used for guiding all or part of the airflow of the air outlet (14) into the air inlet cavity (3).

7. The drying apparatus according to claim 6, characterized in that A heat pump is further arranged, a condenser (16) of the heat pump is arranged in the cabinet (1) and is used for heating the airflow entering the cabinet (1), and an evaporator (17) of the heat pump is used for condensing and dehumidifying all or part of the airflow discharged from the air outlet (14).

8. The drying apparatus according to claim 6, characterized by ​

Images