Bidirectional dryer

Abstract

The utility model belongs to the technical field of drying equipment, and particularly relates to a bidirectional dryer which comprises a shell with a drying chamber, an air inlet channel and an exhaust channel are arranged on the shell, the air inlet channel is provided with two air inlet inner ports which are respectively communicated with the top and the bottom of the drying chamber, and the exhaust channel is provided with two air outlet inner ports which are communicated with the top and the bottom of the drying chamber. The exhaust channel is provided with two exhaust inner ports which are communicated with the top and the bottom of the drying cavity respectively, an air supply fan and a heat source device are connected to an air inlet outer port of the air inlet channel in series through a pipeline, an exhaust outer port of the exhaust channel is communicated with the outside, and an air inlet valve assembly capable of blocking one of the air inlet inner ports is arranged on the air inlet channel. And an exhaust valve assembly capable of blocking one of the exhaust inner ports is arranged on the exhaust channel. By means of the structural cooperation of the air inlet valve assembly and the exhaust valve assembly, the flowing direction of hot air flow in the drying chamber can be effectively changed, and hot air drying and relative humidity in the drying chamber are kept uniform.

Description

Technical fields:

[0001] This utility model belongs to the field of drying equipment technology, and specifically refers to a bidirectional dryer. Background technology:

[0002] As an important piece of equipment for drying crops, crop dryers use hot air to dry crops, effectively reducing the moisture content of crops and the relative humidity of the surrounding air, thereby preventing crops from becoming damp and spoiling.

[0003] However, the direction of hot airflow inside existing crop dryers remains constant. This means that the direction of hot air drying on crops remains unchanged, resulting in uneven heating. Consequently, the moisture content of the crops and the relative humidity of the surrounding air cannot be kept uniform. Summary of the Invention:

[0004] The purpose of this invention is to provide a two-way dryer, which, by means of the structural cooperation of the air inlet valve assembly and the air outlet valve assembly, can effectively change the flow direction of hot air in the drying chamber, so that the hot air drying and relative humidity in the drying chamber are kept uniform.

[0005] This utility model is implemented as follows:

[0006] A bidirectional dryer includes a shell with a drying chamber. The shell is provided with an air inlet channel and an exhaust channel. The air inlet channel has two inner air inlet ports that are respectively connected to the top and bottom of the drying chamber. The exhaust channel has two inner exhaust ports that are respectively connected to the top and bottom of the drying chamber. The outer air inlet port of the air inlet channel is connected to a blower and a heat source device in series via a pipe. The outer exhaust port of the exhaust channel is connected to the outside. An air inlet valve assembly capable of blocking one of the inner air inlet ports is provided on the air inlet channel. An exhaust valve assembly capable of blocking one of the inner exhaust ports is provided on the exhaust channel.

[0007] In the aforementioned bidirectional dryer, both the air inlet channel and the exhaust channel are located on one side wall of the housing. The air inlet channel is located in the middle of the corresponding side wall of the housing, and there are two exhaust channels, which are located on both sides of the air inlet channel.

[0008] In the aforementioned bidirectional dryer, the air inlet valve assembly or air outlet valve assembly includes a power source and a movable valve plate disposed on the corresponding channel. The movable valve plate slides up and down on the corresponding channel, and is driven by the power source to move up and down. When the movable valve plate moves up or down to the extreme value, the movable valve plate can block the corresponding inner port.

[0009] In the aforementioned bidirectional dryer, the power source is a push rod motor, the push rod of the push rod motor is arranged vertically, and there are two movable valve plates, which are respectively fixed at the upper and lower ends of the push rod.

[0010] In the aforementioned bidirectional dryer, a vertical slide rail is mounted on the outer wall of the air inlet or exhaust channel, and a valve slot is formed on the wall of the air inlet or exhaust channel along the axis of the vertical slide rail. The movable valve plate is slidably connected to the vertical slide rail and is fitted through the valve slot.

[0011] In the aforementioned bidirectional dryer, the air inlet port of the air inlet channel is connected to a ventilation duct located inside the drying chamber. The ventilation duct is arranged along the axial direction of the drying chamber, and several ventilation windows communicating with the drying chamber are opened along its axial direction on the ventilation duct.

[0012] In the aforementioned bidirectional dryer, the inner exhaust port of the exhaust channel is located below its outer exhaust port.

[0013] The outstanding advantages of this utility model compared to the prior art are:

[0014] This utility model has a simple structure and reasonable design, and can reliably change the direction of airflow. With the help of the structural cooperation between the air intake valve assembly and the exhaust valve assembly, it can effectively change the direction of hot airflow in the drying chamber, so that the hot air drying and relative humidity in the drying chamber are kept uniform. Attached image description:

[0015] Figure 1 This is a three-dimensional view of the entire utility model;

[0016] Figure 2 This is an overall cross-sectional view of the present invention. Figure 1 ;

[0017] Figure 3 This is an overall cross-sectional view of the present invention. Figure 2 .

[0018] In the diagram: 1. Drying chamber; 2. Shell; 3. Air inlet channel; 4. Exhaust channel; 5. Inner air inlet port; 6. Inner exhaust port; 7. Air supply fan; 8. Heat source device; 9. Outer exhaust port; 10. Moving valve plate; 11. Push rod motor; 12. Push rod; 13. Vertical slide rail; 14. Ventilation duct; 15. Ventilation window. Detailed implementation method:

[0019] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —3:

[0020] A bidirectional dryer includes a shell 2 with a drying chamber 1. The shell 2 is provided with an air inlet channel 3 and an exhaust channel 4. The air inlet channel 3 has two inner air inlet ports 5, which are respectively connected to the top and bottom of the drying chamber 1. The exhaust channel 4 has two inner exhaust ports 6, which are respectively connected to the top and bottom of the drying chamber 1. An outer air inlet port 3 is connected in series with a blower 7 and a heat source device 8 via a pipe. An outer exhaust port 9 of the exhaust channel 4 is connected to the outside. An air inlet valve assembly capable of blocking one of the inner air inlet ports 5 is provided on the air inlet channel 3, and an exhaust valve assembly capable of blocking one of the inner exhaust ports 6 is provided on the exhaust channel 4. The air inlet valve assembly switches between blocking one of the two inner air inlet ports 5 and the exhaust valve assembly switches between blocking one of the two inner exhaust ports 6, allowing the hot airflow within the drying chamber 1 to have four flow directions: top-down, bottom-up, only at the top, and only at the bottom. (See attached drawings.) Figure 2 and Figure 3 As shown, the exhaust valve assembly blocks the air inlet port 5 at the bottom and the exhaust port 6 at the top, allowing the hot airflow to flow downwards within the drying chamber 1. Furthermore, the heat source device 8 can be a commonly used biomass boiler.

[0021] This utility model has a simple structure and reasonable design, and can reliably change the direction of airflow. With the help of the structural cooperation of the air intake valve assembly and the exhaust valve assembly, it can effectively change the flow direction of hot air in the drying chamber 1, so that the hot air drying and relative humidity in the drying chamber 1 are kept uniform.

[0022] Furthermore, in this embodiment, the specific positions of the intake channel 3 and the exhaust channel 4 on the housing 2 are as follows: the intake channel 3 and the exhaust channel 4 are both located on one side wall of the housing 2, the intake channel 3 is located in the middle of the corresponding side wall of the housing 2, and there are two exhaust channels 4, which are located on both sides of the intake channel 3 respectively.

[0023] The intake valve assembly and exhaust valve assembly can both adopt common flip-top valve structures, that is, flip-top valve structures are set at each intake inner port 5 and exhaust inner port 6. The flip-top valve structures of the two intake inner ports 5 are asynchronously opened and closed, and the corresponding flip-top valve structures of the two exhaust inner ports 6 are asynchronously opened and closed. In this embodiment, in order to effectively control equipment costs, the intake valve assembly or exhaust valve assembly includes a power source and a movable valve plate 10 set on the corresponding channel. The movable valve plate 10 slides up and down on the corresponding channel. The power source drives the movable valve plate 10 to move up and down, and when the movable valve plate 10 moves up or down to the extreme value, the movable valve plate 10 can block the corresponding inner port.

[0024] Meanwhile, the power source can be a telescopic cylinder, and in this embodiment, the power source is a push rod motor 11. The push rod 12 of the push rod motor 11 is arranged vertically, and the movable valve plate 10 is provided in two parts and is fixed at the upper and lower ends of the push rod 12 respectively.

[0025] Furthermore, in order to improve the stability of the vertical sliding of the movable valve plate 10 on the housing 2, a vertical slide rail 13 is provided on the outer wall of the air intake channel 3 or the exhaust channel 4. A valve strip hole is opened on the wall of the air intake channel 3 or the exhaust channel 4 along the axis of the vertical slide rail 13. The movable valve plate 10 is slidably connected to the vertical slide rail 13 and is fitted through the valve strip hole.

[0026] Furthermore, to improve the flow range of hot air within the drying chamber 1, the inner air inlet 5 of the air inlet channel 3 is connected to a ventilation duct 14 located within the drying chamber 1. The ventilation duct 14 is arranged along the axial direction of the drying chamber 1, and several ventilation windows 15 communicating with the drying chamber 1 are provided along its axial direction on the ventilation duct 14. Moreover, to facilitate the outward discharge of hot air, the inner exhaust port 6 of the exhaust channel 4 is located below its outer exhaust port 9.

[0027] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A reversible dryer characterized by: The utility model provides a kind of drying machine, including the shell (2) with drying chamber (1), the shell (2) is provided with air inlet channel (3) and exhaust channel (4), air inlet channel (3) has two air inlet inner ports (5) and is communicated with the top, bottom of drying chamber (1) respectively, exhaust channel (4) has two exhaust inner ports (6) and is communicated with the top, bottom of drying chamber (1) respectively, air inlet channel (3) air inlet outer port is connected with air supply fan (7) and heat source device (8) by pipeline series connection, exhaust channel (4) exhaust outer port (9) is communicated with outside, air inlet channel (3) is provided with air inlet valve door assembly that can block one air inlet inner port (5), exhaust channel (4) is provided with exhaust valve door assembly that can block one exhaust inner port (6).

2. A dual direction dryer as claimed in claim 1, wherein: The air inlet channel (3) and the exhaust channel (4) are arranged on one side wall of the shell (2), the air inlet channel (3) is located in the middle of the corresponding side wall of the shell (2), and the exhaust channel (4) is provided with two exhaust channels and is located on both sides of the air inlet channel (3).

3. A reversible dryer according to claim 1 or 2, characterised in that: The air inlet valve door assembly or the exhaust valve door assembly includes a power source and a movable valve plate (10) arranged on the corresponding channel, the movable valve plate (10) is slidably connected on the corresponding channel, the movable valve plate (10) is driven to move up and down by the power source, and the movable valve plate (10) can block the corresponding inner port when the movable valve plate (10) moves up or down to the extreme value.

4. A dual direction dryer as claimed in claim 3, wherein: The power source is a push rod motor (11), the push rod (12) of the push rod motor (11) is arranged vertically, and the movable valve plate (10) is provided with two movable valve plates and is fixed on the upper and lower ends of the push rod (12).

5. A dual direction dryer as claimed in claim 3, wherein: A vertical slide rail (13) is arranged vertically on the outer wall of the air inlet channel (3) or the exhaust channel (4), a valve strip-shaped hole is formed on the wall surface of the air inlet channel (3) or the exhaust channel (4) along the axis of the vertical slide rail (13), and the movable valve plate (10) is slidably connected on the vertical slide rail (13) and penetrates the valve strip-shaped hole.

6. A dual direction dryer as claimed in claim 1, wherein: The air inlet inner port (5) of the air inlet channel (3) is connected with a ventilation duct (14) located in the drying chamber (1), the ventilation duct (14) is arranged along the axis of the drying chamber (1), and a plurality of ventilation windows (15) are formed on the ventilation duct (14) along the axis of the ventilation duct (14) and communicated with the drying chamber (1).

7. A dual direction dryer as claimed in claim 1, wherein: The exhaust inner port (6) of the exhaust channel (4) is located below the exhaust outer port (9).

Images