CN212413908U - Cooling and ventilating system for local high-temperature grain layer of granary - Google Patents
Cooling and ventilating system for local high-temperature grain layer of granary Download PDFInfo
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- CN212413908U CN212413908U CN202020922546.3U CN202020922546U CN212413908U CN 212413908 U CN212413908 U CN 212413908U CN 202020922546 U CN202020922546 U CN 202020922546U CN 212413908 U CN212413908 U CN 212413908U
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Abstract
The utility model relates to the technical field of low-temperature grain storage, and discloses a local high-temperature grain layer cooling and ventilating system for a granary, wherein a grain stack is stacked in the granary, the ventilating system comprises an exhaust fan, a gas collecting pipe, at least two exhaust pipes and at least two air inlet pipes, the bottom of each exhaust pipe is provided with an airflow collecting pipe, the airflow collecting pipe is positioned at one side of a high-temperature grain layer in the grain stack, and the airflow collecting pipe is provided with a plurality of air inlet holes; one end of the air inlet pipe is positioned above the grain stack, the other end of the air inlet pipe is provided with an airflow distribution pipe, the airflow distribution pipe is positioned on the high-temperature grain layer in the grain stack and the other side opposite to the airflow collection pipe, and the airflow distribution pipe is provided with a plurality of air outlet holes; the aperture of the air inlet and the air outlet is smaller than the grain diameter in the grain pile. The utility model discloses a cooling and ventilating system adopts the air-supply line and the exhaust column including the multichannel to carry out the ventilation heat exchange simultaneously, has shortened the air current route, and the ventilation air current is even, and is efficient, can not influence the grain layer temperature at other positions simultaneously.
Description
Technical Field
The utility model relates to a low temperature stores up grain technical field, concretely relates to local high temperature grain layer cooling and ventilating system in granary.
Background
Grain storage is an important means for guaranteeing national grain safety. In the grain storage process, due to the respiration of grains, the moisture of grain piles is uneven, impurities are gathered, and the existence and influence of pests and microorganisms cannot avoid local heating of the grain piles. The heating of the grain pile is usually started from a certain point in the grain pile to slowly raise the temperature, if the heating is not timely processed, the heating range is continuously expanded, the temperature is raised quickly, even moisture transfer occurs, and finally, the grains at the heating part are inevitably dewed and mildewed, and the quality is rapidly deteriorated.
At present, the facility for treating the local high temperature of the grain pile is mainly a single-pipe fan. However, the single-pipe fan is adopted to treat local high-temperature points, which has the following disadvantages:
1) the air flow path is long;
2) influence the grain temperature of other parts;
3) the ventilation range is small, and the efficiency is low;
4) the disassembly and the assembly are time-consuming and labor-consuming;
therefore, a facility which can effectively ventilate and exchange air for local high-temperature grain layers and reduce the temperature through heat exchange is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a local high temperature grain layer cooling and ventilating system of granary adopts the air-supply line and the exhaust column including the multichannel to carry out the heat exchange simultaneously, has shortened the air current route, and is efficient, can not influence the grain layer temperature at other positions simultaneously.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
local high temperature grain layer cooling ventilation system of granary, the inside grain heap of piling up of granary, ventilation system includes:
the exhaust fan is positioned on the grain surface at the top of the grain pile;
one end of the gas collecting pipe is connected with an air inlet of the exhaust fan;
the air extraction pipes are respectively connected with the other end of the air collecting pipe, the bottoms of the air extraction pipes are provided with air flow collecting pipes, the air flow collecting pipes are respectively positioned on one side of a high-temperature grain layer in the grain pile, and the air flow collecting pipes are provided with a plurality of air inlet holes; one end of the single air inlet pipe is positioned above the grain stack, the other end of the single air inlet pipe is provided with an airflow distribution pipe, the airflow distribution pipe is positioned on the other side, opposite to the airflow collection pipe, of the high-temperature grain layer in the grain stack, and the airflow distribution pipe is provided with a plurality of air outlet holes;
the aperture of the air inlet and the air outlet is smaller than the grain diameter in the grain pile.
Furthermore, the bottoms of the gas flow collecting pipe and the gas flow distributing pipe are respectively in a conical structure.
Furthermore, the gas collecting pipe is of a structure in the shape of a short pants.
Further, the exhaust fan is a small centrifugal fan, and the mass of the exhaust fan is not more than 10 kg.
Furthermore, the number of the exhaust pipes and the air inlet pipes is 3.
Furthermore, the exhaust pipe and the air inlet pipe are both perpendicular to the grain surface at the top of the grain pile.
Furthermore, the gas collecting pipe is connected with the exhaust pipe through a hose.
Compared with the prior art, the utility model has the advantages of:
1. the effective path of the airflow is short, the effective path is the horizontal distance between the airflow distribution pipe and the airflow collection pipe on the two sides of the high-temperature grain layer, and the ventilation resistance is small;
2. the air flow passing path is only limited to the high-temperature grain layer and does not pass through the grain layers at other positions, and the temperature of the air flow does not influence the temperature of the grain layers at other positions;
3. the ventilation range is adjustable, a plurality of ventilation pipes can be arranged on two sides side by side according to the range of the high-temperature grain layer, airflow beams are formed in the horizontal width range of the high-temperature grain layer and uniformly pass through the high-temperature area, and ventilation and cooling treatment is carried out on the whole high-temperature area at one time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Figure 1 is a top view of the system of the present invention,
figure 2 is a front view of figure 1,
figure 3 is a schematic view of the structure of the gas flow collecting tube 5 and the gas flow distributing tube 7,
the reference numbers are as follows:
the device comprises a grain pile 1, an exhaust fan 2, a gas collecting pipe 3, an exhaust pipe 4, an airflow collecting pipe 5, an air inlet hole 51, an air inlet pipe 6, an airflow distribution pipe 7 and an air outlet hole 71.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In addition, the term
"first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, the utility model provides a local high-temperature grain layer cooling and ventilating system of a granary, which comprises an exhaust fan 2, a gas collecting pipe 3, at least two exhaust pipes 4 and at least two air inlet pipes 6;
a grain pile 1 is piled in the granary, and a high-temperature grain layer is locally arranged in the grain pile 1;
the exhaust fan 2 is positioned on the grain surface at the top of the grain pile 1, and the exhaust fan 2 preferably selects a small centrifugal fan with proper air quantity and small air pressure, and the mass of the small centrifugal fan is generally not more than 10 kg;
one end of the gas collecting pipe 3 is connected with the air inlet of the exhaust fan 2, the other end of the gas collecting pipe is respectively connected with the multi-path exhaust pipes 4, and the gas collecting pipe 3 and the exhaust pipes 4 can be connected by adopting a hose;
the exhaust pipe 4 is arranged perpendicular to the top surface of the grain pile 1, the bottom of the exhaust pipe is provided with an airflow collecting pipe 5, the airflow collecting pipe 5 is respectively positioned at one side of a high-temperature grain layer in the grain pile 1, the airflow collecting pipe 5 is provided with a plurality of air inlet holes 51, the aperture of the air inlet holes 51 is smaller than the grain diameter of the grain in the grain pile 1, as shown in figure 1, the air collecting pipe 3 is preferably in a pants-shaped structure, the airflow resistance can be reduced, and the circulation can be enhanced;
the air inlet pipe 6 is vertical to the top surface of the grain pile 1, the top end of the air inlet pipe is respectively positioned above the grain pile 1, the bottom of the air inlet pipe is provided with an airflow distribution pipe 7, the airflow distribution pipe 7 is positioned at the other side of the high-temperature grain layer in the grain pile 1, which is opposite to the airflow collection pipe 5, and the airflow distribution pipe 7 is provided with a plurality of air outlet holes 71;
preferably, the number of the exhaust pipes 4 and the air inlet pipes 6 is 3;
during installation, the airflow collecting pipe 5 and the airflow distribution pipe 7 are respectively inserted into the grain pile 1, so that the airflow collecting pipe 5 and the airflow distribution pipe 7 are respectively positioned at two sides of a high-temperature grain layer, and in order to reduce installation resistance, the bottoms of the airflow collecting pipe 5 and the airflow distribution pipe 7 are respectively arranged into a conical structure, as shown in fig. 3;
the actual position of the high-temperature grain layer in the granary is randomly changed, and the ventilation system of the utility model is installed according to the position of the high-temperature grain layer during actual application;
the air inlet of the exhaust pipe 4, the air collecting pipe 5 and the air outlet of the air inlet pipe 6, the air distribution pipe 7 are respectively arranged at the positions close to the two sides of the high-temperature grain layer, the effective path of the ventilation air flow is the horizontal distance between the air collecting pipe 5 and the air distribution pipe 7 at the two sides, and the passing distance of the air flow in the high-temperature grain layer is the effective path. The actual ventilation path length is decided by the range of the high-temperature area, compared with the airflow path of the single-pipe fan system in the prior art, the ventilation resistance is small, the airflow passing path is limited to the high-temperature grain layer, and the air flow cannot pass through the grain layers of other parts, so that the temperature of the airflow cannot influence the temperatures of the grain layers of other parts.
The working principle is as follows: the pipeline is arranged according to the position of a high-temperature grain layer in a granary, so that the airflow collecting pipe 5 and the airflow distribution pipe 7 are positioned at two sides of the high-temperature grain layer in the grain pile 1, airflow enters the air inlet pipe 6 from the upper space of the grain pile 1, reaches the airflow distribution pipe 7, passes through the high-temperature grain layer, enters the exhaust pipe 4, enters the exhaust fan 2 through the air collection pipe 3, and is finally discharged to the upper space of the grain pile 1 from the air outlet of the exhaust fan 2. In the whole process, the airflow flows out of the space and then flows back to the space to form an airflow closed loop. In the process of circulating and flowing the air flow, the heat of the high-temperature grain layer is taken out, the grain temperature of the high-temperature grain layer is reduced to be close to the space bin temperature value, and the ventilation and cooling of the high-temperature grain layer are realized.
The utility model discloses a cooling ventilation system is suitable for the cooling of the local high temperature grain layer of air conditioner accuse temperature storehouse and handles, when in-service use, arranges the pipeline in the both sides position that is closest high temperature grain layer as far as possible.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (7)
1. Local high temperature grain layer cooling and ventilating system of granary, inside the piling of granary has grain heap (1), its characterized in that, ventilation system includes:
the exhaust fan (2) is positioned on the grain surface at the top of the grain pile (1);
one end of the gas collecting pipe (3) is connected with an air inlet of the exhaust fan (2);
at least two air extraction pipes (4) are respectively connected with the other end of the gas collecting pipe (3), the bottom of each air extraction pipe (4) is provided with an airflow collecting pipe (5), the airflow collecting pipes (5) are respectively positioned at one side of a high-temperature grain layer in the grain pile (1), and a plurality of air inlet holes (51) are formed in the airflow collecting pipes (5); one end of the single air inlet pipe (6) is positioned above the grain pile (1), the other end of the single air inlet pipe is provided with an airflow distribution pipe (7), the airflow distribution pipe (7) is positioned on the other side, opposite to the airflow collection pipe (5), of the high-temperature grain layer in the grain pile (1), and the airflow distribution pipe (7) is provided with a plurality of air outlet holes (71);
the aperture of the air inlet (51) and the aperture of the air outlet (71) are both smaller than the grain diameter in the grain pile (1).
2. The cooling and ventilating system for local high-temperature grain layers of the granary according to claim 1, wherein: the bottoms of the airflow collecting pipe (5) and the airflow distribution pipe (7) are respectively of a conical structure.
3. The cooling and ventilating system for local high-temperature grain layers of the granary according to claim 1, wherein: the gas collecting pipe (3) is of a structure in the shape of a short pants.
4. The cooling and ventilating system for local high-temperature grain layers of the granary according to claim 1, wherein: the exhaust fan (2) is a small centrifugal fan, and the mass of the exhaust fan is not more than 10 kg.
5. The cooling and ventilating system for local high-temperature grain layers of the granary according to claim 1, wherein: the number of the exhaust pipes (4) and the number of the air inlet pipes (6) are 3.
6. The cooling and ventilating system for local high-temperature grain layers of the granary according to claim 1, wherein: the exhaust pipe (4) and the air inlet pipe (6) are both arranged perpendicular to the grain surface at the top of the grain pile (1).
7. The cooling and ventilating system for local high-temperature grain layers of the granary according to claim 1, wherein: the gas collecting pipe (3) is connected with the exhaust pipe (4) through a hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020922546.3U CN212413908U (en) | 2020-05-27 | 2020-05-27 | Cooling and ventilating system for local high-temperature grain layer of granary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020922546.3U CN212413908U (en) | 2020-05-27 | 2020-05-27 | Cooling and ventilating system for local high-temperature grain layer of granary |
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| Publication Number | Publication Date |
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| CN212413908U true CN212413908U (en) | 2021-01-29 |
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| CN202020922546.3U Active CN212413908U (en) | 2020-05-27 | 2020-05-27 | Cooling and ventilating system for local high-temperature grain layer of granary |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115250767A (en) * | 2022-08-25 | 2022-11-01 | 中央储备粮海口直属库有限公司 | Granary cold wall system and method based on walkway plates and double-layer cavity covering surface |
-
2020
- 2020-05-27 CN CN202020922546.3U patent/CN212413908U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115250767A (en) * | 2022-08-25 | 2022-11-01 | 中央储备粮海口直属库有限公司 | Granary cold wall system and method based on walkway plates and double-layer cavity covering surface |
| CN115250767B (en) * | 2022-08-25 | 2023-10-24 | 中央储备粮海口直属库有限公司 | Granary cold wall system and method based on pavement plate and double-layer cavity coverage |
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