Ventilation structure of multifunctional dryer

Abstract

The utility model belongs to the technical field of drying equipment, and particularly relates to a ventilation structure of a multifunctional dryer. An upper air pipe is arranged at the top of an inner cavity of the shell, a lower air pipe is arranged at the bottom of the inner cavity of the shell, an air outlet of the fan is connected with the upper air pipe and the lower air pipe through a three-way pipe, the three-way pipe comprises an upper air pipe, a lower air pipe and an air inlet pipe, the upper air pipe is connected with the upper air pipe, the lower air pipe is connected with the lower air pipe, and the air inlet pipe is connected with the air outlet of the fan. The upper air pipe and the lower air pipe are provided with gate assemblies for controlling ventilation of the upper air pipe and the upper air pipe and ventilation of the lower air pipe and the lower air pipe respectively, and the side walls of the upper air pipe and the lower air pipe are provided with a plurality of ventilation openings for ventilation towards an inner cavity of the shell in the length direction of the upper air pipe and the lower air pipe. The drying device can guide hot air flow and is good in drying effect.

Description

Technical field:

[0001] The utility model belongs to the technical field of drying equipment, in particular to a ventilation structure of a multifunctional drying machine. Background technology:

[0002] Grain dryer is a general term for various grain dryer equipment. Most grain dryers use hot air flow to reduce the moisture content of grain particles and the relative humidity of the air around the grain to prevent the grain pile from getting damp and deteriorating. However, the hot air flow of existing grain dryers directly enters the inner cavity of the shell without being guided, resulting in uneven temperature in the inner cavity of the shell, and finally resulting in poor drying effect. Summary of the invention:

[0003] The utility model aims to provide a ventilation structure of a multifunctional dryer which can guide hot air flow and has good drying effect.

[0004] The utility model is achieved in this way:

[0005] A ventilation structure of a multifunctional dryer comprises a shell, a heat source device and a fan. An upper air duct is arranged at the top of an inner cavity of the shell, and a down air duct is arranged at the bottom. The air outlet of the fan is respectively connected with the upper air duct and the down air duct through a three-way pipe. The three-way pipe comprises an upper air duct, a down air duct and an air inlet pipe. The upper air duct is connected with the upper air duct, the down air duct is connected with the down air duct, and the air inlet pipe is connected with the air outlet of the fan. Gate assemblies for controlling ventilation between the upper air duct and the upper air duct, and ventilation between the down air duct and the down air duct are arranged on the upper air duct and the down air duct respectively. Ventilation holes for ventilating toward the inner cavity of the shell are opened on the side walls along their length directions, and a plurality of the vents are arranged.

[0006] In the ventilation structure of the above-mentioned multifunctional dryer, an upper elbow and a top oblique air inlet are arranged between the upper air duct and the upper air duct, a lower elbow and a bottom oblique air inlet are arranged between the lower air duct and the lower air duct, an upper air inlet and a lower air inlet are arranged on the shell, the top oblique air inlet and the upper air duct are interconnected at the upper air inlet, and the bottom oblique air inlet and the lower air duct are interconnected at the lower air inlet.

[0007] In the above-mentioned ventilation structure of a multifunctional dryer, a diverter plate is arranged inside the top oblique air inlet, and the diverter plate divides the inside of the top oblique air inlet into a main air duct and two side air ducts. The two side air ducts are located on both sides of the main air duct. The main air duct is connected with the upper air duct, and the side air duct is connected with the inner cavity of the shell through the upper air inlet.

[0008] In the above-mentioned ventilation structure of a multifunctional dryer, the upper air duct is fixed to the top of the inner cavity of the shell through a hanging bracket.

[0009] In the above-mentioned ventilation structure of a multifunctional dryer, a plurality of the hangers are arranged at intervals along the length direction of the upper air duct, each hanger is U-shaped, and the upper end of each hanger is fixedly connected to the shell by a fastener.

[0010] In the above-mentioned ventilation structure of a multifunctional dryer, the downwind duct is fixed on the inner bottom surface of the shell.

[0011] In the above-mentioned ventilation structure of a multifunctional dryer, the downwind duct includes a first downwind duct and a second downwind duct, and the first downwind duct and the second downwind duct are connected by an intermediate connecting duct, and the intermediate connecting duct includes a first flange, and the first flange is fixedly connected to the inner bottom surface of the shell by a fastener, and a second flange is provided at the end of the second downwind duct, and the second downwind duct is fixedly connected to the rear side plate of the shell by the second flange and the fastener, and a third flange is provided at the inlet end of the first downwind duct, and the first downwind duct is fixedly connected to the front side plate of the shell by the third flange and the fastener.

[0012] In the above-mentioned ventilation structure of a multifunctional dryer, the gate assembly includes a gate bracket arranged outside the upper air duct or the lower air duct, a screw is rotatably arranged on the gate bracket, a vertical plate is arranged at one end of the gate, a threaded hole screwed to the screw is arranged on the vertical plate, the other end of the gate extends into the upper air duct or the lower air duct, and a baffle supporting the gate is arranged on the side wall inside the upper air duct or the lower air duct.

[0013] In the above-mentioned ventilation structure of a multifunctional dryer, the upper air duct is a square tube, and the vents are arranged on the left and right side plates and the bottom plate of the upper air duct; the lower air duct is a square tube, and the vents are arranged on the left and right side plates and the top plate of the lower air duct.

[0014] In the above-mentioned ventilation structure of a multifunctional dryer, an air guide plate is provided on the ventilation opening.

[0015] The outstanding advantages of the utility model compared with the prior art are:

[0016] The utility model has an upper air duct and a lower air duct extending into the inner cavity of a shell body, basically covering the entire material drying and conveying mesh belt, and a plurality of vents are arranged on the upper air duct and the lower air duct, and hot air flows into different positions of the inner cavity of the shell body through the vents, so that the hot air flow is evenly distributed, and the upper air duct and the lower air duct realize two-way drying, and the hot air flow can dry the material from above and below the material drying and conveying mesh belt respectively, and the hot air flow circulates from top to bottom and from bottom to top, so that the moisture in the material and the relative humidity in the surrounding air are kept even, and the drying effect is good. Description of the drawings:

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 yes Figure 2 AA section view;

[0020] Figure 4 It is a schematic diagram of the housing of the utility model after being disassembled;

[0021] Figure 5 It is a schematic diagram showing that the upper air pipe and the lower air pipe of the three-way pipe of the utility model are connected to the upper air pipe and the lower air pipe respectively;

[0022] Figure 6 It is a schematic diagram of a gate assembly provided on a three-way pipe of the utility model;

[0023] Figure 7 yes Figure 6 Right view of;

[0024] Figure 8 yes Figure 7 BB cross-sectional view;

[0025] Fig. 9 yes Figure 8 A partial enlarged schematic diagram of

[0026] Fig.10 It is a schematic diagram of the hanger of the utility model;

[0027] Fig.11 It is a schematic diagram of the top oblique air inlet of the utility model.

[0028] In the figure: 1. shell; 2. heat source device; 3. fan; 4. upper air duct; 5. lower air duct; 6. tee pipe; 7. upper air duct; 8. lower air duct; 9. air inlet pipe; 10. vent; 11. material drying conveyor belt; 12. upper elbow; 13. top oblique air inlet; 14. lower elbow; 15. bottom oblique air inlet; 16. splitter plate; 17. main air duct; 18. side air duct; 19. bracket; 20. strip hole; 21. first lower air duct; 22. second lower air duct; 23. middle connecting air duct; 24. second flange; 25. gate bracket; 26. screw; 27. gate; 28. vertical plate; 29. ​​baffle; 30. air guide plate. Specific implementation method:

[0029] The present invention is further described below with reference to specific embodiments. Figure 1 —11:

[0030] The utility model provides a ventilation structure of a multifunctional drying machine, comprising a housing 1, a heat source device 2, and a fan 3, wherein the heat source device 2 is a hot air furnace, an upper air duct is arranged at the top of the inner cavity of the housing 1, and a lower air duct 5 is arranged at the bottom, and the air outlet of the fan 3 is respectively connected with the upper air duct 4 and the lower air duct 5 through a three-way pipe 6, wherein the three-way pipe 6 comprises an upper air duct 7, a lower air duct 8 and an air inlet pipe 9, wherein the upper air duct 7 is connected with the upper air duct 4, the lower air duct 8 is connected with the lower air duct 5, and the air inlet pipe 9 is connected with the air outlet of the fan 3, and gate components are respectively arranged on the upper air duct 7 and the lower air duct 8 to respectively control the ventilation between the upper air duct 7 and the upper air duct 4, and the ventilation between the lower air duct 8 and the lower air duct 5, so as to realize reversing ventilation and achieve two-way drying. Ventilation openings 10 for ventilation toward the inner cavity of the housing 1 are opened on the side walls of the upper air duct 4 and the lower air duct 5 along their length direction, and the ventilation openings 10 are arranged in a plurality.

[0031] The utility model is provided with a material drying conveyor mesh belt 11 between the upper air duct 4 and the lower air duct 5. The material is laid on the material drying conveyor mesh belt 11. The material can be agricultural and sideline products such as grains and peppers. The hot air flow in the upper air duct 4 and the lower air duct 5 of the utility model can directly enter the inner cavity of the shell 1, and dry the material from the upper and lower sides of the material drying conveyor mesh belt 11 respectively. The hot air flow circulates from top to bottom and from bottom to top, so that the moisture in the material and the relative humidity in the surrounding air are kept uniform.

[0032] Furthermore, an upper elbow 12 and a top oblique air inlet 13 are provided between the upper air duct 7 and the upper air duct 4, a lower elbow 14 and a bottom oblique air inlet 15 are provided between the lower air duct 8 and the lower air duct 5, an upper air inlet and a lower air inlet are provided on the shell 1, the top oblique air inlet 13 and the upper air duct 4 are interconnected at the upper air inlet, and the bottom oblique air inlet 15 and the lower air duct 5 are interconnected at the lower air inlet.

[0033] Specifically, a diverter plate 16 is provided inside the top oblique air inlet 13, and the diverter plate 16 divides the inside of the top oblique air inlet 13 into a main air duct 17 and two side air ducts 18. The two side air ducts 18 are located on both sides of the main air duct 17. The main air duct 17 is connected to the upper air duct 4, and the side air duct 18 is connected to the inner cavity of the shell 1 through the upper air inlet.

[0034] Part of the hot air flow passing through the top oblique air inlet 13 enters the upper air duct 4 through the upper air pipe 7, the upper elbow 12, and the main air duct 17, and enters the inner cavity of the shell 1 through the vent 10 on the upper air duct 4 and the end of the upper air duct 4, drying the material from top to bottom; the other part directly enters the inner cavity of the shell 1 through the side air duct 18.

[0035] In the present invention, the upper air duct 4 is fixed to the top of the inner cavity of the shell 1 through a hanger 19 .

[0036] Specifically, a plurality of the hangers 19 are arranged at intervals along the length direction of the upper air duct 4 , each hanger 19 is U-shaped, and the upper end of each hanger 19 is fixedly connected to the housing 1 via a fastener.

[0037] A strip hole 20 is provided at the upper end of the bracket 19 , and a fastener passes through the strip hole 20 to be connected to the housing 1 . The provision of the strip hole 20 can adjust the upper and lower positions of the upper air duct 4 , so as to facilitate connection with the top oblique air inlet 13 .

[0038] The downwind duct 5 is fixed on the inner bottom surface of the shell 1 .

[0039] It should be noted that the downwind duct 5 of the utility model includes a first downwind duct 21 and a second downwind duct 22, and the first downwind duct 21 and the second downwind duct 22 are connected by an intermediate connecting duct 23, and the intermediate connecting duct 23 includes a first flange, and the first flange is fixedly connected to the inner bottom surface of the shell 1 by a fastener, and a second flange 24 is provided at the end of the second downwind duct 22, and the second downwind duct 22 is fixedly connected to the rear side plate of the shell 1 by the second flange 24 and fasteners, and a third flange is provided at the inlet end of the first downwind duct 21, and the first downwind duct 21 is fixedly connected to the front side plate of the shell 1 by the third flange and fasteners.

[0040] The gate assembly described in the utility model includes a gate bracket 25 arranged outside the upper air pipe 7 or the lower air pipe 8, a screw 26 is rotatably arranged on the gate bracket 25 through a bearing and a bearing seat, a vertical plate 28 is arranged at one end of the gate 27, a threaded hole screwed to the screw 26 is arranged on the vertical plate 28, the other end of the gate 27 extends into the upper air pipe 7 or the lower air pipe 8, and a retaining bar 29 for supporting the gate 27 is arranged on the two side walls inside the upper air pipe 7 or the lower air pipe 8.

[0041] The screw rod 26 can be rotated manually with the aid of a wrench, or can be rotated automatically using a motor or the like.

[0042] When the upper air duct 4 is ventilated, the screw rod 26 is rotated to move the other end of the gate 27 toward the outside of the upper air duct 7, thereby releasing the gate 27 from blocking the inner cavity of the upper air duct 7. At this time, the lower air duct 8 is blocked by the gate 27.

[0043] The hot air generated by the heat source device 2 flows through the fan 3, the air inlet pipe 9, the upper elbow 12, the top oblique air inlet 13, and the upper air duct 4 for ventilation.

[0044] When the lower air duct 5 is ventilated, the gate 27 in the upper air duct 4 is closed, that is, the gate 27 is moved into the upper air duct 4, and the gate 27 in the lower air duct 8 is opened.

[0045] Among them, the ventilation of the upper air duct 4 and the ventilation of the lower air duct 5 are controlled at regular intervals.

[0046] Finally, it should be noted that the upper air duct 4 of the utility model is a square tube, and the vents 10 are arranged on the left and right side plates and the bottom plate of the upper air duct 4, and the lower air duct 5 is a square tube, and the vents 10 are arranged on the left and right side plates and the top plate of the lower air duct 5. The vents 10 are provided with air guide plates 30.

[0047] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A ventilation structure of a multifunctional drying machine, comprising a housing (1), a heat source device (2), and a fan (3), characterized in that: An upper air duct (4) is arranged at the top of the inner cavity of the shell (1), and a lower air duct (5) is arranged at the bottom. The air outlet of the fan (3) is respectively connected to the upper air duct (4) and the lower air duct (5) through a three-way pipe (6). The three-way pipe (6) comprises an upper air duct (7), a lower air duct (8) and an air inlet pipe (9). The upper air duct (7) is connected to the upper air duct (4), the lower air duct (8) is connected to the lower air duct (5), and the air inlet pipe (9) is connected to the air outlet of the fan (3). Gate components for respectively controlling the ventilation between the upper air duct (7) and the upper air duct (4) and the ventilation between the lower air duct (8) and the lower air duct (5) are arranged on the side walls of the upper air duct (4) and the lower air duct (5) along their length direction to ventilate toward the inner cavity of the shell (1). A plurality of the ventilation holes (10) are arranged.

2. The ventilation structure of a multifunctional dryer according to claim 1, characterized in that: An upper elbow (12) and a top oblique air inlet (13) are provided between the upper air pipe (7) and the upper air pipe (4); a lower elbow (14) and a bottom oblique air inlet (15) are provided between the lower air pipe (8) and the lower air pipe (5); an upper air inlet and a lower air inlet are provided on the shell (1); the top oblique air inlet (13) and the upper air pipe (4) are interconnected at the upper air inlet; and the bottom oblique air inlet (15) and the lower air pipe (5) are interconnected at the lower air inlet.

3. The ventilation structure of a multifunctional dryer according to claim 2, characterized in that: A splitter plate (16) is arranged inside the top oblique air inlet (13), and the splitter plate (16) divides the inside of the top oblique air inlet (13) into a main air duct (17) and side air ducts (18), and the side air ducts (18) are located on both sides of the main air duct (17), the main air duct (17) is connected to the upper air duct (4), and the side air duct (18) is connected to the inner cavity of the shell (1) through the upper air inlet.

4. A ventilation structure for a multifunctional dryer according to claim 1, 2 or 3, characterized in that: The upper air duct (4) is fixed to the top of the inner cavity of the shell (1) via a hanging bracket (19).

5. The ventilation structure of a multifunctional dryer according to claim 4, characterized in that: A plurality of the hangers (19) are arranged at intervals along the length direction of the upper air duct (4); each hanger (19) is U-shaped, and the upper end of each hanger (19) is fixedly connected to the shell (1) via a fastener.

6. A ventilation structure for a multifunctional dryer according to claim 1, 2 or 3, characterized in that: The downwind duct (5) is fixedly arranged on the inner bottom surface of the shell (1).

7. The ventilation structure of a multifunctional dryer according to claim 6, characterized in that: The downwind duct (5) comprises a first downwind duct (21) and a second downwind duct (22), the first downwind duct (21) and the second downwind duct (22) being connected via an intermediate connecting duct (23), the intermediate connecting duct (23) comprising a first flange, the first flange being fixedly connected to the inner bottom surface of the shell (1) via a fastener, the end of the second downwind duct (22) being provided with a second flange (24), the second downwind duct (22) being fixedly connected to the rear side plate of the shell (1) via the second flange (24) and the fastener, the inlet end of the first downwind duct (21) being provided with a third flange, the first downwind duct (21) being fixedly connected to the front side plate of the shell (1) via the third flange and the fastener.

8. A ventilation structure for a multifunctional dryer according to claim 1, 2 or 3, characterized in that: The gate assembly comprises a gate bracket (25) arranged outside the upper air pipe (7) or the lower air pipe (8), a screw rod (26) being rotatably arranged on the gate bracket (25), a vertical plate (28) being arranged at one end of the gate (27), a threaded hole being threadedly connected to the screw rod (26) being arranged on the vertical plate (28), the other end of the gate (27) extending into the upper air pipe (7) or the lower air pipe (8), and a retaining bar (29) supporting the gate (27) being arranged on the side wall inside the upper air pipe (7) or the lower air pipe (8).

9. The ventilation structure of a multifunctional dryer according to claim 1, characterized in that: The upper air duct (4) is a square tube, and the vents (10) are arranged on the left and right side plates and the bottom plate of the upper air duct (4); the lower air duct (5) is a square tube, and the vents (10) are arranged on the left and right side plates and the top plate of the lower air duct (5).

10. A ventilation structure for a multifunctional drying machine according to claim 1 or 9, characterized in that: An air guide plate (30) is provided on the vent (10).

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