A power cabinet for a pneumatic conveying system

Abstract

The utility model discloses a power cabinet for pneumatic conveying system, including the current -collecting box and the fan for the blast and the air intake, the inner wall of current -collecting box is enclosed and forms the current -collecting cavity, one end of fan is linked with current -collecting cavity, and the other end is linked with pneumatic conveying system, be equipped with the first air port for the air inlet and the second air port for the exhaust on current -collecting box, be equipped with filter screen subassembly on the second air port, be equipped with the first opening and closing subassembly for opening or closing first air port on the first air port. The utility model discloses a power cabinet for pneumatic conveying system has simple structure and the advantage that environmental pollution is little.

Description

Technical Field

[0001] This utility model relates to the technical field of material sample preparation and analysis equipment, and in particular to a power cabinet for a pneumatic conveying system. Background Technology

[0002] Existing pneumatic conveying systems use blowers and suction to transport materials from one location to another. During operation, dust from different spaces containing the materials and foreign objects from the pipes are inevitably carried to the other location, causing environmental pollution.

[0003] Chinese patent document CN107364721A discloses a bidirectional fan power device. When the power cabinet is in suction mode, the exhaust air can be filtered through a filter screen. When the power cabinet is in blower mode, air enters through the filter screen, and foreign objects are sucked away and discharged to another location through a pipe, polluting the environment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a power cabinet for pneumatic conveying systems that has a simple structure and low environmental pollution.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A power cabinet for a pneumatic conveying system includes a manifold and a blower for blowing and absorbing air. The manifold has an inner wall that encloses a manifold cavity. One end of the blower is connected to the manifold cavity and the other end is connected to the pneumatic conveying system. The manifold is provided with a first air inlet for air intake and a second air outlet for air exhaust. The second air outlet is provided with a filter assembly. The first air outlet is provided with a first opening and closing assembly for opening or closing the first air outlet.

[0007] As a further improvement to the above technical solution:

[0008] The first opening and closing assembly includes a first sealing door, which is hinged to the inside of the junction box.

[0009] The angle between the first sealing door and the horizontal plane is less than 90°.

[0010] The first sealing door is provided with a vibrating element for vibrating the first sealing door.

[0011] The manifold is also equipped with a third air vent, which is used to open for forced ventilation when the filter assembly is clogged.

[0012] The third air vent is provided with a second opening and closing assembly for opening or closing the third air vent. The second opening and closing assembly includes a second sealing door, which is hinged to the outside of the junction box.

[0013] The third air vent is also equipped with a detection component for detecting whether the second opening and closing component is open.

[0014] A collection box is provided at the bottom of the manifold.

[0015] The manifold is cone-shaped.

[0016] The first air outlet is located at one end near the fan.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] 1. The power cabinet of this utility model for a pneumatic conveying system has the following characteristics: when the fan blows air, it exhausts air from the second air outlet, and the filter assembly on the second air outlet can filter the exhaust air. When the fan draws air in, it draws air in from the first air outlet, drawing clean air from the room where the power cabinet is located into the fan. This prevents foreign objects on the filter assembly from being sucked away and discharged to other locations through pipes, thus preventing environmental pollution. By setting two air outlets for blowing and drawing air respectively, the structure is simple and the environmental pollution is small.

[0019] 2. The power cabinet of this utility model for a pneumatic conveying system has a positive pressure in the manifold when the fan blows air. Under the action of gravity and air pressure, the first sealing door closes the first air outlet. When the fan draws air in, the manifold has a negative pressure. The air pressure counteracts the effect of gravity, and the first sealing door is lifted inward to open the first air outlet. The structure is simple and reliable.

[0020] 3. The power cabinet of this utility model for a pneumatic conveying system has good sealing performance when the fan is not started. Because the angle between the first sealing door and the horizontal plane is less than 90°, the horizontal component of the gravity of the first sealing door can make the first sealing door fit with the first air outlet.

[0021] 4. In the power cabinet of the pneumatic conveying system of this utility model, when the fan blows air, the vibrating component can shake off the dust and foreign objects adsorbed on the first sealing door, so as to prevent the dust and foreign objects on the first sealing door from being sucked away again when the fan draws air, thus avoiding environmental pollution.

[0022] 5. The power cabinet of this utility model for a pneumatic conveying system can prevent the equipment performance from deteriorating when the filter assembly is clogged to a certain extent. By using a third air vent for forced exhaust, the equipment performance can be prevented from deteriorating. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the power cabinet used in the pneumatic conveying system according to this utility model.

[0024] Figure 2 This is a schematic diagram of another embodiment of the power cabinet of the present invention used in a pneumatic conveying system.

[0025] Figure 3 This is a structural schematic diagram of the first sealing door (second sealing door) in the power cabinet of the pneumatic conveying system of this utility model.

[0026] Figure 4 This is a front view of the first sealing door (second sealing door) in the power cabinet of the pneumatic conveying system of this utility model.

[0027] The labels in the diagram represent: 1. Fan; 2. Combination box; 21. First air outlet; 22. Second air outlet; 23. Third air outlet; 24. First opening and closing assembly; 241. First sealing door; 25. Filter assembly; 26. Second opening and closing assembly; 261. Second sealing door; 27. Detection assembly; 3. Combination cavity; 4. Collection box. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] like Figures 1 to 4 As shown, the power cabinet for the pneumatic conveying system in this embodiment includes a manifold 2 and a blower 1 for blowing and absorbing air. The inner wall of the manifold 2 forms a manifold cavity 3. One end of the blower 1 is connected to the manifold cavity 3 and the other end is connected to the pneumatic conveying system. The manifold 2 is provided with a first air inlet 21 for air intake and a second air outlet 22 for air exhaust. The second air outlet 22 is provided with a filter assembly 25. The first air outlet 21 is provided with a first opening and closing assembly 24 for opening or closing the first air outlet 21. In this embodiment of the power cabinet for a pneumatic conveying system, when the fan 1 rotates forward, it is in a blowing state. The first opening and closing component 24 closes the first air outlet 21, and air is discharged from the second air outlet 22 into the manifold 3. The filter assembly 25 filters dust and foreign objects in the air. When the fan 1 rotates in reverse, it is in a suction state. The first opening and closing component 24 opens the first air outlet 21, and air enters the manifold 3 from the first air outlet 21, and then supplies air to the pneumatic conveying system through the fan 1. In this embodiment of the power cabinet for a pneumatic conveying system, when the fan 1 is blowing, air is exhausted from the second air outlet 22. The filter assembly 25 on the second air outlet 22 can filter the exhaust air. When the fan 1 is suctioning, air is drawn in from the first air outlet 21, drawing clean air from the room where the power cabinet is located into the fan 1. This prevents foreign objects on the filter assembly 25 from being sucked away and discharged to other locations through pipes, thus preventing environmental pollution. By setting two air outlets for blowing and suction respectively, the structure is simple and the environmental pollution is small.

[0033] Furthermore, in this embodiment, the first opening and closing component 24 includes a first sealing door 241, which is hinged to the inner side of the manifold 2. When the fan 1 blows air, the manifold 2 is under positive pressure, and the first sealing door 241, under the action of gravity and air pressure, adheres to the first air outlet 21, thereby closing the first air outlet 21; when the fan 1 draws air, the manifold 2 is under negative pressure, and the air pressure counteracts the effect of gravity, causing the first sealing door 241 to lift inward, thereby opening the first air outlet 21. The structure is simple and reliable.

[0034] Furthermore, in this embodiment, the angle between the first sealing door 241 and the horizontal plane is less than 90°. When the fan 1 is not started, since the angle between the first sealing door 241 and the horizontal plane is less than 90°, the horizontal component of the gravity of the first sealing door 241 can make the first sealing door 241 fit with the first air outlet 21, resulting in good sealing performance.

[0035] Furthermore, in this embodiment, the first sealing door 241 is provided with a vibrating element for vibrating the first sealing door 241. When the fan 1 blows air, the vibrating element can shake off the dust and foreign objects adsorbed on the first sealing door 241, preventing the dust and foreign objects on the first sealing door 241 from being sucked away again when the fan 1 draws air, thus avoiding environmental pollution.

[0036] Furthermore, in this embodiment, the manifold 2 is also provided with a third air vent 23, which is used to open for forced ventilation when the filter assembly 25 is clogged. When the filter assembly 25 is clogged to a certain extent, it will cause the equipment performance to decrease during blower operation. Forced ventilation through the third air vent 23 can prevent the equipment performance from decreasing.

[0037] Furthermore, in this embodiment, the third air vent 23 is provided with a second opening / closing assembly 26 for opening or closing the third air vent 23. The second opening / closing assembly 26 includes a second sealing door 261, which is hinged to the outside of the manifold box 2. When the fan 1 draws air, the manifold box 2 is under negative pressure. Under the action of gravity and air pressure, the second sealing door 261 adheres to the third air vent 23, thereby closing the third air vent 23. When the fan 1 blows air, the manifold box 2 is under positive pressure. When the filter assembly 25 is blocked to a certain extent, the action of air pressure exceeds the action of gravity of the second sealing door 261, and the second sealing door 261 is lifted outward, thereby opening the third air vent 23. The structure is simple and reliable.

[0038] Preferably, in this embodiment, the angle between the second sealing door 261 and the horizontal plane is less than 90°, and the horizontal component of the gravity of the second sealing door 261 can make the second sealing door 261 fit with the third air vent 23, resulting in good sealing performance.

[0039] Furthermore, in this embodiment, the third air vent 23 is also provided with a detection component 27 for detecting whether the second opening and closing component 26 is open. By detecting whether the second opening and closing component 26 is open through the detection component 27, it is possible to determine whether the filter assembly 25 is clogged, so as to remind the staff to clean and maintain the filter assembly 25.

[0040] Furthermore, in this embodiment, a collection box 4 is provided at the bottom of the manifold 3. The collection box 4 can collect dust and foreign objects naturally deposited on the filter assembly 25, preventing them from accumulating in the manifold 3 and affecting the blowing or suction effect.

[0041] Furthermore, in this embodiment, the manifold 3 is conical. The conical shape of the manifold 3 facilitates the collection of dust and foreign objects into the collection box 4 at the bottom of the manifold 3, resulting in a simple structure and good collection effect. Of course, as... Figure 2 As shown, in other embodiments, the manifold 3 may also be rectangular or other shapes.

[0042] Furthermore, in this embodiment, the first air vent 21 is located near the end of the fan 1. Because the first air vent 21 is close to the fan 1, it can quickly open when the fan 1 draws air in, allowing air to enter and reducing airflow within the manifold 3, thus preventing dust and foreign matter on the filter assembly 25 from being drawn away again.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A power cabinet for a pneumatic conveying system, characterized in that: It includes a manifold (2) and a blower (1) for blowing and absorbing air. The inner wall of the manifold (2) forms a manifold cavity (3). One end of the blower (1) is connected to the manifold cavity (3) and the other end is connected to a pneumatic conveying system. The manifold (2) is provided with a first air inlet (21) for air intake and a second air outlet (22) for air exhaust. The second air outlet (22) is provided with a filter assembly (25). The first air outlet (21) is provided with a first opening and closing assembly (24) for opening or closing the first air outlet (21).

2. The power cabinet for a pneumatic conveying system according to claim 1, characterized in that: The first opening and closing assembly (24) includes a first sealing door (241) which is hinged to the inside of the junction box (2).

3. The power cabinet for a pneumatic conveying system according to claim 2, characterized in that: The angle between the first sealing door (241) and the horizontal plane is less than 90°.

4. The power cabinet for a pneumatic conveying system according to claim 2, characterized in that: The first sealing door (241) is provided with a vibrating element for vibrating the first sealing door (241).

5. The power cabinet for a pneumatic conveying system according to claim 1, characterized in that: The manifold (2) is also provided with a third air vent (23), which is used to open for forced ventilation when the filter assembly (25) is clogged.

6. The power cabinet for a pneumatic conveying system according to claim 5, characterized in that: The third air vent (23) is provided with a second opening and closing assembly (26) for opening or closing the third air vent (23). The second opening and closing assembly (26) includes a second sealing door (261), which is hinged to the outside of the junction box (2).

7. The power cabinet for a pneumatic conveying system according to claim 5, characterized in that: The third air vent (23) is also provided with a detection component (27) for detecting whether the second opening and closing component (26) is open.

8. The power cabinet for a pneumatic conveying system according to claim 1, characterized in that: The bottom of the manifold (3) is provided with a collection box (4).

9. The power cabinet for a pneumatic conveying system according to claim 8, characterized in that: The manifold (3) is conical.

10. The power cabinet for a pneumatic conveying system according to any one of claims 1 to 9, characterized in that: The first air outlet (21) is located at one end near the fan (1).

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