A dehumidification structure for a hot air dryer

Abstract

This utility model relates to a dehumidification structure for a hot air dryer, including a hot air dryer body and a dehumidification module disposed inside the hot air dryer body. The dehumidification module includes a first baffle and a second baffle. A material channel is provided at the bottom of the hot air dryer body. The first baffle and the second baffle are symmetrically arranged on the front and rear sides of the material channel. Multiple air vents are provided at the bottom of the first baffle and the second baffle, and the first baffle and the second baffle are arranged in a V-shape. An exhaust pipe is fixedly installed at the top of the side of the first baffle and the second baffle that are facing away from each other. One end of the exhaust pipe passes through the hot air dryer body and extends to the outside of the hot air dryer body. The high-temperature airflow carries away the moisture on the material belt above the middle of the baffle. Therefore, under the action of the airflow, it will flow along the end faces of the first baffle and the second baffle that are close to each other, and will not cause water vapor to condense on the first baffle and the second baffle and then form water droplets that fall on the material belt.

Description

Technical Field

[0001] This utility model relates to the field of test paper technology, and in particular to a dehumidification structure for a hot air dryer. Background Technology

[0002] Test strips are commonly used for laboratory tests, including early pregnancy tests and blood sugar tests. The production process involves multiple steps, including soaking, leveling, and drying. After soaking for a period of time, the test strips are dried using a drying device. Currently, the direction of the hot air in the drying oven is fixed, resulting in significant differences in drying efficiency at different locations on the test strip, which seriously affects the drying quality.

[0003] Currently, Chinese patent CN220135878U discloses a test strip drying oven, including a box body with a cylindrical body rotatably connected inside. The inner side of the cylindrical body forms a drying chamber, and the outer side of the cylindrical body forms a hot air chamber with the box body. At least one air inlet is provided on the cylindrical body, arranged axially along the cylindrical body. A hot air blower connected to the hot air chamber is provided on the box body. Both ends of the box body have test strip inlets and outlets and test strip rolling rollers communicating with the drying chamber. The test strip drying oven also includes a control structure for controlling the rotation of the cylindrical body. This invention solves the technical problems existing in the prior art, providing a test strip drying oven that can blow hot air onto the test strip from different directions while the test strip remains stationary, thereby achieving the purpose of uniformly drying the test strip.

[0004] The above-mentioned existing technical solutions have the following drawbacks: In order to quickly dry the test strips, the dried water vapor will accumulate inside the chamber, causing the internal humidity of the oven to rise sharply during long-term use, resulting in a progressively worse drying effect. Utility Model Content

[0005] The purpose of this invention is to provide a dehumidification structure for a hot air dryer to solve the problems existing in the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A dehumidification structure for a hot air dryer includes a hot air dryer body and a dehumidification module disposed inside the hot air dryer body. The dehumidification module includes a first baffle and a second baffle. A material channel running through the bottom of the hot air dryer body is provided, which is used to dry the material as it moves from left to right. The first baffle and the second baffle are symmetrically arranged on the front and rear sides of the material channel. The tops of the first baffle and the second baffle are fixedly connected to the interior of the hot air dryer body. The bottoms of the first baffle and the second baffle are provided with multiple vent holes. The first baffle and the second baffle are arranged in a figure-eight shape, and the distance between the tops of the first baffle and the second baffle is greater than the distance between the bottoms of the first baffle and the second baffle. An exhaust pipe is fixedly installed on the top of the side of the first baffle and the second baffle that are facing away from each other. One end of the exhaust pipe passes through the hot air dryer body and extends to the outside of the hot air dryer body. A water collection tank is provided at the bottom of the first baffle and the second baffle.

[0008] By adopting the above technical solution, as the material strip (test strip) enters the material channel from the right side and exits from the left side, the top of the hot air dryer body provides hot air to the material channel from top to bottom. Therefore, the hot air impacts the bottom of the hot air dryer body. After impacting the bottom of the hot air dryer body, the hot air overflows from multiple vents at the bottom of the first and second baffles. The first and second baffles actually establish two chambers, one at the front and one at the rear, inside the hot air dryer body, allowing the material to... After the high-temperature airflow carrying moisture from the conveyor belt enters the chamber, it is discharged through the exhaust pipe. During this process, there is no need to install any active extraction device on the exhaust pipe. The high-humidity, high-temperature airflow can automatically overflow through the exhaust pipe. Because the first and second baffles are arranged in a V-shape, and the high-temperature airflow carries away the moisture from the conveyor belt above the middle of the baffles, it will flow along the end faces of the first and second baffles that are close to each other under the action of the airflow. This will not cause water vapor to condense on the first and second baffles and then form water droplets that fall onto the conveyor belt.

[0009] In a further embodiment, the bottom of the material channel is provided with multiple hot air nozzles at equal intervals from left to right, and the top of the material channel is provided with multiple rows of hot air nozzles at equal intervals from left to right.

[0010] By adopting the above technical solution, the number of hot air nozzles at the top of the material channel needs to be greater than that at the bottom. This arrangement is to allow the material belt to be dried from both the top and bottom. The hot air nozzles at the bottom will spread out after hitting the bottom of the material belt. At this time, because there are more hot air nozzles at the top, the air force from top to bottom is greater than that from bottom to top. Therefore, the high humidity steam will always stay below the middle line of the material channel, preventing the high humidity steam from condensing when it touches the top of the material channel.

[0011] In a further embodiment, the bottom of the water collection trough is an arc-shaped surface, and the water collection trough is located at the bottom end of the side where the first baffle and the second baffle are opposite to each other. The inner bottom of the water collection trough is a slope that is higher on the left and lower on the right. The bottom right side of the water collection trough is connected to one end of a drain pipe.

[0012] By adopting the above technical solution, a piston needs to be installed at the other end of the drain pipe during installation. The piston is opened when drainage is needed and closed when drainage is not needed.

[0013] In a further embodiment, the surfaces of both the first baffle and the second baffle are coated with a hydrophobic coating.

[0014] By adopting the above technical solution, water mist is prevented from condensing on the surfaces of the first and second baffles and then not flowing down the surface of the baffles.

[0015] In a further embodiment, support rollers are provided on both the left and right sides of the material channel.

[0016] By adopting the above technical solution, the support roller is used to support the material belt, so the material belt is completely unsupported inside the material channel. When setting it up, the angle of the hot air nozzles at the top and the hot air nozzles at the bottom needs to be adjusted. It is more preferable to set three rows of hot air nozzles from front to back at the top, with the middle row and the bottom row corresponding in number and facing each other. The front and back rows are used to guide the airflow to the lower half of the material channel.

[0017] In a further embodiment, the plurality of vent holes are connected to form a rectangular groove.

[0018] By adopting the above technical solution, it is actually equivalent to having a gap between the bottom of the first baffle and the inner bottom of the material channel during the setting process. This gap is the set exhaust hole. The left and right sides of the first and second baffles are in contact with the inner wall of the material channel, and the top is also in contact with it, which means that the airflow is forced into the gap.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. As the material strip (test strip) enters the material channel from the right side and exits from the left side, hot air is supplied from top to bottom to the material channel within the main body of the hot air dryer. This hot air impacts the bottom of the main body of the hot air dryer. Upon impact, the hot air overflows from multiple vents at the bottom of the first and second baffles. The first and second baffles actually create two chambers, one at the front and one at the rear, inside the main body of the hot air dryer. This allows the high-temperature airflow carrying moisture from the material strip to enter the chamber and then be discharged through the exhaust pipe. No active extraction device is needed for the exhaust pipe; the high-humidity, high-temperature airflow automatically overflows through the exhaust pipe. Because the first and second baffles are arranged in a V-shape, and the high-temperature airflow carries away moisture from the material strip above the middle of the baffles, the airflow flows along the adjacent end faces of the first and second baffles, preventing water vapor condensation on the first and second baffles and the formation of water droplets that fall onto the material strip. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram illustrating the positional relationship between the first baffle and the second baffle inside the material channel of this utility model.

[0023] In the diagram, 1 is the dehumidification module; 11 is the first baffle; 12 is the second baffle; 2 is the exhaust pipe; 3 is the water collection tank; and 4 is the hot air nozzle. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0026] Example 1:

[0027] like Figures 1-2As shown, a dehumidification structure for a hot air dryer includes a hot air dryer body and a dehumidification module 1 disposed inside the hot air dryer body. The dehumidification module 1 includes a first baffle 11 and a second baffle 12. A material channel extending from left to right is provided at the bottom of the hot air dryer body. The material channel is used to dry the material as it moves from left to right. The first baffle 11 and the second baffle 12 are symmetrically arranged on the front and rear sides of the material channel. The tops of the first baffle 11 and the second baffle 12 are fixedly connected to the interior of the hot air dryer body, and the bottoms of the first baffle 11 and the second baffle 12 are... Multiple ventilation holes are provided at the ends of the material channel. The first baffle 11 and the second baffle 12 are arranged in a V-shape, and the distance between the top ends of the first baffle 11 and the second baffle 12 is greater than the distance between their bottom ends. An exhaust pipe 2 is fixedly installed at the top of the opposite side of the first baffle 11 and the second baffle 12. One end of the exhaust pipe 2 passes through the hot air dryer body and extends to the outside of the hot air dryer body. A water collection tank 3 is provided at the bottom of the first baffle 11 and the second baffle 12. Multiple hot air nozzles 4 are evenly spaced from left to right at the bottom of the material channel. The section has multiple rows of hot air nozzles 4 evenly spaced from left to right. Support rollers support the material strip, so the material strip has no support structure inside the material channel. When setting it up, the angles of the top and bottom hot air nozzles need to be adjusted. Preferably, the top has three rows of hot air nozzles arranged from front to back, with the middle and bottom rows corresponding in number and directly opposite each other. The front and back rows are used to guide airflow to the lower half of the material channel. This arrangement allows the airflow from above and below to directly dry the reagent paper strip. The top airflow can press down the front and rear edges of the conveyor belt, preventing it from moving erratically under the influence of airflow, and can efficiently remove moisture from the conveyor belt through convection; the bottom of the water collection trough 3 is an arc-shaped surface, and the water collection trough 3 is located at the bottom end of the side opposite to the first baffle 11 and the second baffle 12. The inner bottom of the water collection trough 3 is a slope that is higher on the left and lower on the right, and the bottom right side of the water collection trough 3 is connected to one end of the drain pipe; the surfaces of the first baffle 11 and the second baffle 12 are both coated with a hydrophobic coating; support rollers are provided on both the left and right sides of the material channel; multiple vent holes are connected to form a rectangular trough.

[0028] As the test strip enters the material channel from the right side and exits from the left side, hot air is supplied from top to bottom to the material channel within the main body of the hot air dryer. This hot air impacts the bottom of the dryer body. Upon impact, the hot air overflows from multiple vents at the bottom of the first and second baffles. The first and second baffles effectively create two chambers, one at the front and one at the rear, within the dryer body. This allows the high-temperature airflow carrying moisture from the test strip to enter the chambers and then be discharged through the exhaust pipe. No active extraction device is needed for the exhaust pipe; the high-humidity, high-temperature airflow automatically overflows through it. Because the first and second baffles are arranged in a V-shape, and the high-temperature airflow carries away moisture from the test strip above the middle of the baffles, the airflow flows along the adjacent end faces of the first and second baffles, preventing water vapor condensation on the baffles and the formation of water droplets that fall onto the test strip.

[0029] like Figure 1 It can be seen that there is an openable door on the front side of the hot air dryer body. This door is normally closed and is used to provide an inspection port. In the middle of the door, there is an observation window composed of double-layered vacuum glass, which is used to observe the interior of the hot air dryer body.

[0030] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A hot air dryer dehumidification structure, comprising a hot air dryer body and a dehumidification module (1) arranged inside the hot air dryer body, characterized in that: The dehumidification module (1) includes a first baffle (11) and a second baffle (12). The bottom of the hot air dryer body is provided with a material channel that runs through the left and right sides. The material channel is used to dry the material when it moves from left to right. The first baffle (11) and the second baffle (12) are symmetrically arranged on the front and rear sides of the material channel. The tops of the first baffle (11) and the second baffle (12) are fixedly connected to the interior of the hot air dryer body. The bottoms of the first baffle (11) and the second baffle (12) are provided with multiple air vents. The first baffle (11) and the second baffle (12) are arranged in a figure-eight shape, and the distance between the top ends of the first baffle (11) and the second baffle (12) is greater than the distance between the bottom ends of the first baffle (11) and the second baffle (12). An exhaust pipe (2) is fixedly installed on the top end of the side of the first baffle (11) and the second baffle (12) that are opposite to each other. One end of the exhaust pipe (2) passes through the hot air dryer body and extends to the outside of the hot air dryer body. A water collection tank (3) is provided at the bottom of the first baffle (11) and the second baffle (12).

2. The hot-air dryer dehumidification structure according to claim 1, characterized in that: The bottom of the material channel is provided with multiple hot air nozzles (4) at equal intervals from left to right, and the top of the material channel is provided with multiple rows of hot air nozzles (4) at equal intervals from left to right.

3. The hot-air dryer dehumidification structure according to claim 1, characterized in that: The bottom of the water collection trough (3) is an arc-shaped surface, and the water collection trough (3) is located at the bottom end of the side opposite to the first baffle (11) and the second baffle (12). The inner bottom of the water collection trough (3) is a slope with the left side higher than the right side. The bottom right side of the water collection trough (3) is connected to one end of the drain pipe.

4. The hot-air dryer dehumidification structure according to claim 1, characterized in that: The surfaces of the first baffle (11) and the second baffle (12) are both coated with a hydrophobic coating.

5. The hot-air dryer dehumidification structure according to claim 1, characterized in that: Support rollers are installed on both the left and right sides of the material channel.

6. The hot-air dryer dehumidification structure according to claim 1, characterized in that: The multiple vent holes are connected to form a rectangular groove.

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