Upper grain layer ventilation and heat dissipation device used in bulk grain storage
By designing an upper grain layer ventilation and heat dissipation device with adjustable position and height, the problem of poor ventilation and heat dissipation effect of the upper grain layer in the prior art is solved, efficient ventilation and heat dissipation of the upper grain layer is achieved, and the suitable dry and humidity of the grain pile is maintained.
Patent Information
- Application Number
- CN202421214196.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The prior art has poor ventilation and heat dissipation effect of the upper grain layer in the scattered grain storage, and when the ventilated floor cage is blown, the airflow intensity becomes weak, resulting in local drying exceeding the requirements of dry and humidity.
A ventilation and heat dissipation device for the upper grain layer is designed, including a ventilation unit, an axial fan, a ventilation corrugated pipe and a bellows drive cylinder. Through the movement adjustment of the movable block and telescopic rod, the position and height of the axial fan and ventilation corrugated pipe are adjustable, so as to achieve efficient ventilation and heat dissipation of the upper grain layer.
Efficient ventilation and heat dissipation of the upper grain layer is achieved, which avoids the problem of weakening airflow strength and ensures that the dry and humidity of the grain pile is within the appropriate range.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the field of safe storage of bulk grains, in particular to an upper grain layer ventilation and heat dissipation device used in bulk grain storage. Background Art
[0002] During the storage process of bulk grain, due to moisture or heat generation from breathing, the bulk grain pile needs to be ventilated and cooled in time to maintain the appropriate dryness and temperature of the bulk grain.
[0003] In the prior art, a ventilation cage is provided at the bottom of the bulk grain pile. When the grain pile needs to be ventilated and cooled, air is blown toward the bulk grain pile through the ventilation cage, and the airflow passes through the entire grain pile from bottom to top to achieve the purpose of ventilating and cooling the grain pile.
[0004] This ventilation and heat dissipation method has the following problems: First, for the upper grain layer, the upper grain layer usually refers to the grain layer within 50 cm below the upper surface of the grain pile. In the process of the airflow flowing through the grain pile from bottom to top, the airflow intensity has been weakening. When the airflow reaches the upper grain layer, the airflow intensity becomes smaller, and the ventilation and heat dissipation effect on the upper grain layer is not good; secondly, the local heating position of the grain pile is sporadic. When only the upper grain layer of the grain pile is heated and needs ventilation and heat dissipation, the airflow needs to be blown out from the bottom to the top through the ventilation cage. The airflow intensity at the bottom of the grain pile is relatively large, which will cause the loose grain at the bottom of the grain pile to be blown particularly dry and exceed the corresponding dryness and humidity requirements. Utility Model Content
[0005] The utility model aims to provide an upper grain layer ventilation and heat dissipation device which can realize ventilation and heat dissipation of the upper grain layer.
[0006] In order to solve the above technical problems, the technical solution of a ventilation and heat dissipation device for an upper grain layer capable of ventilating and dissipating the upper grain layer in the utility model is as follows:
[0007] A ventilation and heat dissipation device for an upper grain layer used in bulk grain storage comprises at least one ventilation unit, wherein the ventilation unit comprises a movable block guided and moved along a front-to-rear direction and mounted on a silo wall, a telescopic rod hinged on the movable block and having a rotation axis extending along an up-down direction, an axial flow fan having an axis extending along an up-down direction is arranged at the end of the telescopic rod, the upper grain layer ventilation and heat dissipation device also comprises a ventilating port opened on the silo wall, the upper end of the axial flow fan is connected to the ventilating port by a ventilation hose, the lower end of the axial flow fan is provided with a ventilation bellows which can be telescoped and adjusted in the up-down direction, and the axial flow fan is provided with a bellows driving cylinder for driving the ventilation bellows to telescope.
[0008] Furthermore, there are two bellows drive cylinders, which are symmetrically arranged on the left and right sides of the axial flow fan.
[0009] Furthermore, the telescopic rod includes a first rod body hingedly connected to the movable block and a second rod body telescopically matched with the first rod body, the axial flow fan is arranged on the second rod body, and a rod body driving cylinder is arranged between the first rod body and the second rod body to drive the second rod body to telescope relative to the first rod body.
[0010] Furthermore, there are two rod driving cylinders, which are symmetrically arranged at the front and rear sides of the first rod.
[0011] Furthermore, a rod body swing cylinder for driving the first rod body to rotate around its own hinge axis is arranged between the movable block and the first rod body.
[0012] Furthermore, a rack extending in the front-to-back direction is fixed on the warehouse wall, a driving motor is arranged on the movable block, a motor shaft of the driving motor is connected to a motor shaft gear whose axis extends in the up-down direction, and the motor shaft gear is meshed with the rack for transmission.
[0013] Furthermore, there are two groups of racks and drive motors, and the two groups of racks and drive motors are arranged on the upper and lower sides of the movable block respectively.
[0014] Furthermore, there are two ventilation units, and the movable blocks of the two ventilation units are respectively guided and moved to be assembled on the left and right silo walls of the grain layer. The two ventilation units are staggered front and back, and the longest length of the telescopic rod of each ventilation unit is greater than half of the width of the silo.
[0015] The beneficial effects of the utility model are as follows: in the utility model, when the upper grain layer at a certain position in the granary needs to be ventilated and cooled, the movable block can be moved in the front-to-back direction to adjust the front-to-back position of the axial flow fan, the telescopic adjustment of the tube telescopic rod can adjust the left-right position of the axial flow fan, and the air inlet height of the ventilation bellows can be adjusted by the telescopic adjustment of the ventilation bellows. When the axial flow fan is working, the upper grain layer position that needs to be ventilated can be ventilated and cooled by exhausting air. When the upper grain layer ventilation and cooling device is not needed, the telescopic rod is rotated so that the telescopic rod swings close to the wall to reduce the left and right space occupied by the telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:
[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0018] Figure 2 yes Figure 1 Schematic diagram of the coordination between a single ventilation unit and the left side warehouse wall;
[0019] 1. Ventilation unit; 2. Left warehouse wall; 3. Right warehouse wall; 4. Motor shaft gear; 5. Telescopic rod swing cylinder; 6. Telescopic rod; 7. Rod body drive cylinder; 8. Axial flow fan; 9. Bellows drive cylinder; 10. Telescopic bellows; 11. Conical shrink pipe; 12. Ventilation hose; 13. Ventilation port; 14. Rack; 15. First rod body; 16. Second rod body; 17. Movable block; 18. Drive motor. DETAILED DESCRIPTION
[0020] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0021] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0022] The utility model is a kind of upper grain layer ventilation and heat dissipation device used in bulk grain storage. Figure 1~2 As shown:
[0023] Bulk grain needs to be stored in a granary. The width direction of the granary is the left-right direction. The granary includes a left-side granary wall 2 and a right-side granary wall 3.
[0024] The upper grain layer ventilation and heat dissipation device includes two ventilation units 1, which are staggered front to back and are respectively installed on the left warehouse wall 2 and the right warehouse wall 3. The two ventilation units have the same structure. Now only the structure of the ventilation unit installed on the left warehouse wall is introduced in detail.
[0025] A dovetail guide rail extending in the front-to-back direction is provided on the left side of the warehouse wall. The ventilation unit includes a movable block 17 that is guided and moved in the front-to-back direction and assembled on the dovetail guide rail. A telescopic rod 6 with a rotation axis extending in the up-down direction is hingedly connected to the movable block 17. An axial flow fan 8 with an axis extending in the up-down direction is provided at the end of the telescopic rod 6. In this embodiment, the telescopic rod includes a first rod body 15 hingedly connected to the movable block 17 and a second rod body 16 that telescopically cooperates with the first rod body 15. The fan housing of the axial flow fan 8 is fixed to the second rod body. A rod body driving cylinder 7 that drives the second rod body to telescope relative to the first rod body is provided between the first rod body and the second rod body. There are two rod body driving cylinders, which are symmetrically arranged on the front and back sides of the first rod body and the second rod body.
[0026] The upper grain layer ventilation and heat dissipation device also includes a vent 13 opened on the left side of the silo wall. The upper end of the axial flow fan is the fan outlet. A tapered shrinking pipe 11 with a larger bottom and a smaller top is provided at the fan outlet. The upper end of the tapered shrinking pipe 11 is connected to the vent through a ventilation hose 12. The lower end of the axial flow fan 8 is the fan inlet. A ventilation bellows 10 that can be adjusted in the upward and downward directions is provided at the fan inlet. The axial flow fan is provided with a bellows driving cylinder 9 that drives the ventilation bellows to extend and retract. There are two bellows driving cylinders 9, which are symmetrically arranged on the left and right sides of the axial flow fan.
[0027] A rod body swing cylinder 5 for driving the first rod body to rotate around its own hinge axis is arranged between the movable block 17 and the first rod body 15 .
[0028] A rack 14 extending in the front-to-back direction is fixed on the left side of the warehouse wall, and a driving motor 18 is provided on the movable block. A motor shaft gear 4 with an axis extending in the up-down direction is connected to the motor shaft of the driving motor 18, and the motor shaft gear 4 is meshed with the rack 14 for transmission. In this embodiment, there are two groups of racks 14 and driving motors 18, and the two groups of racks and driving motors are arranged on the upper and lower sides of the movable block respectively. The driving motors on the upper and lower sides of the movable block work synchronously, so that the movable block can be driven to move forward and backward along the dovetail guide rail through the meshing of the motor shaft gear and the rack.
[0029] The longest length of the telescopic rod 6 of each ventilation unit is greater than half of the width of the granary. In this way, the width of the entire grain pile surface can be covered through the telescopic cooperation of the two ventilation units, avoiding the use of a single telescopic rod, which requires an excessively long length and causes the telescopic rod to be heavy, resulting in a heavy load on the corresponding hinged position and guide rails.
[0030] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances.
[0031] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.
[0032] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A ventilation and heat dissipation device for the upper grain layer used in bulk grain storage, characterized in that: The invention comprises at least one ventilation unit, which comprises a movable block which is guided and moved along the front-rear direction and is assembled on the warehouse wall, a telescopic rod with a rotation axis extending along the up-down direction is hinged on the movable block, an axial flow fan with an axis extending along the up-down direction is arranged at the end of the telescopic rod, and the upper grain layer ventilation and heat dissipation device also comprises a ventilating port opened on the warehouse wall, the upper end of the axial flow fan is connected to the ventilating port by a ventilation hose, the lower end of the axial flow fan is provided with a ventilation bellows which can be telescoped and adjusted in the up-down direction, and the axial flow fan is provided with a bellows driving cylinder which drives the ventilation bellows to telescope.
2. The upper grain layer ventilation and heat dissipation device according to claim 1 is characterized in that: There are two bellows drive cylinders, which are symmetrically arranged on the left and right sides of the axial flow fan.
3. The upper grain layer ventilation and heat dissipation device according to claim 1 is characterized in that: The telescopic rod includes a first rod body hingedly connected to the movable block and a second rod body telescopically matched with the first rod body. The axial flow fan is arranged on the second rod body. A rod body driving cylinder is arranged between the first rod body and the second rod body to drive the second rod body to telescope relative to the first rod body.
4. The upper grain layer ventilation and heat dissipation device according to claim 3 is characterized in that: There are two rod body driving cylinders, which are symmetrically arranged at the front and rear sides of the first rod body.
5. The upper grain layer ventilation and heat dissipation device according to claim 3 is characterized in that: A rod body swing cylinder for driving the first rod body to rotate around its own hinge axis is arranged between the movable block and the first rod body.
6. The upper grain layer ventilation and heat dissipation device according to claim 1, characterized in that: A rack extending in the front-to-back direction is fixed on the warehouse wall, a driving motor is arranged on the movable block, a motor shaft of the driving motor is connected with a motor shaft gear whose axis extends in the up-down direction, and the motor shaft gear is meshed with the rack for transmission.
7. The upper grain layer ventilation and heat dissipation device according to claim 6, characterized in that: There are two groups of racks and driving motors, which are arranged on the upper and lower sides of the movable block respectively.
8. The upper grain layer ventilation and heat dissipation device according to any one of claims 1 to 7, characterized in that: There are two ventilation units, and the movable blocks of the two ventilation units are respectively guided and moved to be assembled on the left and right silo walls of the grain layer. The two ventilation units are staggered front and back, and the longest length of the telescopic rod of each ventilation unit is greater than half of the width of the silo.