Air detection and ventilation device for grain unloading pit

Abstract

The utility model relates to the technical field of grain pit ventilation equipment, and particularly discloses a grain unloading pit air detection ventilation device which comprises a supporting frame, the supporting frame is vertically installed in the center inside a pit, a blower is arranged at the top of the pit, the air outlet end of the blower is communicated with the bottom of the pit through a first pipeline, and the air outlet end of the blower is communicated with the bottom of the pit through a second pipeline. A first pipeline is arranged on the supporting frame, an exhaust fan is further arranged at the top of the pit, the air inlet end of the exhaust fan extends into the pit through a second pipeline, an air detector is further arranged on the supporting frame, and the air detector, the exhaust fan and an air blower are connected with a control processor. Due to the arrangement of the exhaust fan and the blower, air circulation in the pit 2 can be smoother, poisonous gas generated in the pit can be timely and efficiently exhausted in time, and therefore the safety of operators who go into the pit for operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain pit ventilation equipment, specifically to an unloading pit air detection and air exchange device. BACKGROUND

[0002] The unloading pit is a kind of infrastructure widely used in grain storage and processing facilities. It is mainly a pit-shaped structure dug below the ground, used to receive and temporarily store the grain unloaded from transport vehicles (such as trucks, trains, etc.). Its functions include providing a convenient space for grain unloading, facilitating the collection and preliminary processing of grain, and also helping to control the spread of grain during unloading, improving the efficiency and safety of grain loading and unloading.

[0003] During the storage of grain, some odors and harmful gases may be produced, such as carbon dioxide, ethanol, methane, etc. When workers enter the pit for work, the poor air circulation in the pit poses a risk of poisoning or suffocation to the workers. Currently, ventilation equipment is mainly installed in the pit to introduce fresh air to expel harmful gases and hot and humid air. However, simple ventilation cannot effectively circulate the air in the pit with the outside air, and some toxic gases cannot be timely discharged, so an unloading pit air detection and air exchange device is needed. CONTENT OF THE UTILITY MODEL

[0004] To solve the above problems, the utility model adopts the following technical solutions.

[0005] An unloading pit air detection and air exchange device, comprising a support frame, the support frame is vertically installed at the center position inside the pit, a blower is provided at the top of the pit, the air outlet end of the blower is connected to the bottom of the pit through a pipeline one, the pipeline one is installed on the support frame, an exhaust fan is also provided at the top of the pit, the air inlet end of the exhaust fan extends into the pit through a pipeline two, an air detector is also provided on the support frame, and the air detector, the exhaust fan and the blower are connected to a control processor respectively.

[0006] As a preferred, a cyclone dust collector is also provided at the top of the pit, and the air outlet end of the exhaust fan is connected to the air inlet end of the cyclone dust collector.

[0007] As a preferred, a filter screen is provided at the air inlet end of the blower.

[0008] As a preferred, a plurality of ventilation pipe assemblies are connected at the lower end of the pipeline one, the plurality of ventilation pipe assemblies are arranged in a ring shape, the ventilation pipe assembly comprises a horizontally arranged pipeline three, an L-shaped pipeline four and a C-shaped pipeline five.

[0009] Preferably, the support frame is provided with a plurality of air detectors from top to bottom, and each air detector is connected with the control processor.

[0010] Preferably, the pipeline two comprises an upper section, an extension end and a lower section from top to bottom, the support frame is vertically provided with a slide rail, the top of the support frame is vertically downward provided with a driving motor, the output end of the driving motor is connected with a screw rod, the screw rod is threadedly connected with a mounting seat, the side of the mounting seat moves in the slide rail, the lower section is connected with the mounting seat, and the top of the mounting seat is provided with a range finder, and the range finder is connected with the control processor.

[0011] Preferably, the top of the pit is further provided with a plurality of ventilation pipes, and the ventilation pipes are connected with the top of the pit.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model is provided with an exhaust fan and a blower, can make the air circulation in the pit more smooth, can also timely and efficiently exhaust the toxic gas generated in the pit, thereby improving the safety of the operation personnel working in the pit. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is Figure 1 It is a partial structure schematic view of A in the middle;

[0016] Figure 3 It is Figure 1 It is a partial structure schematic view of B in the middle.

[0017] In the drawing: 1, support frame; 2, pit; 3, blower; 4, pipeline one; 5, exhaust fan; 6, air detector; 7, cyclone dust collector; 8, filter screen; 9, pipeline three; 10, pipeline four; 11, pipeline five; 12, valve; 13, pipeline two; 14, driving motor; 15, screw rod; 16, mounting seat; 17, slide rail; 18, range finder; 19, ventilation pipe. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer", "top / bottom end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the term "installation", "provided with", "sleeved / connected", "connection" and so on, should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment

[0021] As Figures 1-3 Shown in the embodiment, a kind of unloading pit air detection air exchange device, including, support frame 1, the support frame 1 vertical installation is in the inside center position of pit 2, the top of the pit 2 is provided with blower 3, the air outlet end of the blower 3 is passed into the bottom of pit 2 by pipeline one 4, pipeline one 4 is installed on support frame 1, the top of the pit 2 is also provided with exhaust fan 5, the air inlet end of exhaust fan 5 extends to the inside of pit 2 by pipeline two 13, air detector 6 is also provided on the support frame 1, the air detector 6, exhaust fan 5 and blower 3 are connected with control processor respectively.

[0022] In the embodiment, the top of the pit 2 is also provided with cyclone dust collector 7, and the air outlet end of the exhaust fan 5 is connected to the air inlet end of the cyclone dust collector 7.

[0023] In the embodiment, the air inlet end of the blower 3 is provided with a filter screen 8.

[0024] In the embodiment, the lower end of the pipeline one 4 is connected to a plurality of ventilation pipe assemblies, which are arranged in a ring shape. The ventilation pipe assembly includes a horizontally arranged pipeline three 9, an L-shaped pipeline four 10, and a C-shaped pipeline five 11. In the embodiment, the pipeline three 9 is arranged at the bottom of the pit 2, the pipeline four 10 extends along the bottom of the pit 2 to the side wall of the pit 2 and upwardly, and the pipeline five 11 extends along the bottom of the pit 2 to the side wall and continues to extend upwardly to the top of the pit 2 and inwardly.

[0025] In the embodiment, the support frame 1 is provided with a plurality of air detectors 6 from top to bottom, and each air detector 6 is connected with the control processor.

[0026] In the embodiment, the pipeline II 13 includes an upper section 13-1, an expansion end 13-2 and a lower section 13-3 from top to bottom, the support frame 1 is vertically provided with a sliding rail 17, the top of the support frame 1 is vertically downward provided with a driving motor 14, the output end of the driving motor 14 is connected with a screw rod 15, the screw rod 15 is threadedly connected with a mounting seat 16, the side of the mounting seat 16 moves in the sliding rail 17, the lower section 13-3 is connected with the mounting seat 16, and the top of the mounting seat 16 is provided with a distance meter 18, which is connected with the control processor. In the embodiment, the expansion end 13-2 is a bellows, and the distance meter 18 is used to measure the distance between the mounting seat 16 and the top of the pit.

[0027] In the embodiment, the top of the pit 2 is further provided with a plurality of ventilation pipes, the ventilation pipe 19 is connected with the top of the pit 2, and the top of the ventilation pipe 19 is provided with a valve 12.

[0028] The working principle and beneficial effects of the above technical solution are as follows:

[0029] During the unloading operation, the valve is closed, and the air blower 3 and the exhaust fan 5 are opened, the external air passes through the pipeline I 4, is blown out from the air outlets of the pipeline III 9, the pipeline IV 10 and the pipeline V 11 respectively, and is discharged after being dusted by the cyclone dust collector 7 through the pipeline II and the exhaust fan 5.

[0030] During the daily storage period, the valve is opened, and the air outlet fan is opened, so that the air in the pit 2 flows, the fresh air outside is introduced into the pit, the hot and humid air in the pit is discharged, local overheating and humidity are prevented, sufficient oxygen can be provided for the pit, and the normal respiration of the grain is maintained. At the same time, the sufficient oxygen environment helps to inhibit the growth of anaerobic harmful microorganisms. During the daily storage period, each air detector 6 is in a real-time detection state, and the detected air cost data is transmitted to the control processor. When the concentration of harmful gas and carbon dioxide detected exceeds the preset safety value, the control processor controls the driving motor 14 to rotate, the lower section 13-3 is sent to the height corresponding to the air detector 6, and the exhaust fan 5 and the valve are opened, so that the harmful gas is discharged in time, and the fresh air is introduced.

[0031] During the maintenance, the operator enters the pit 2 after referring to the operation for a period of time during the unloading operation, so as to ensure the air quality in the pit 2 and prevent danger.

[0032] Compared with the prior art, the utility model discloses be provided with exhaust fan 5 and hair dryer 3, can make the air circulation in pit 2 more smooth, also can timely and efficiently export the toxic gas generated in pit 2 in time, thereby improve the security of the personnel operation under pit.

[0033] The above is only the preferred specific implementation of the utility model; but the protection scope of the utility model is not limited to this. Any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the improvement concept of the utility model, is equivalent to replace or change, and should be covered in the protection scope of the utility model.

Claims

1. A kind of unloading pit air detection air changing device, it is characterized in that, Including, support frame (1), the support frame (1) is vertically installed in the inside center position of pit (2), the top of pit (2) is provided with blower (3), the air outlet end of blower (3) is connected into pit (2) bottom through pipeline one (4), pipeline one (4) is installed on support frame (1), the top of pit (2) is further provided with exhaust fan (5), the air inlet end of exhaust fan (5) is extended to pit (2) inside through pipeline two (13), support frame (1) is further provided with air detector (6), air detector (6), exhaust fan (5) and blower (3) are connected with control processor respectively.

2. The air detection and replacement device for unloading pit according to claim 1, characterized in that, The top of pit (2) is further provided with a cyclone dust collector (7), and the air outlet end of the exhaust fan (5) is connected with the air inlet end of the cyclone dust collector (7).

3. The air detection and replacement device for unloading pit according to claim 1, characterized in that, The air inlet end of the blower (3) is provided with a filter screen (8).

4. The air detection and replacement device for a grain unloading pit according to claim 1, characterized in that, The lower end of the pipeline one (4) is connected with a plurality of ventilation pipe assemblies, and the ventilation pipe assemblies are arranged in a ring shape.

5. The air detection and replacement device for a grain unloading pit according to claim 1, characterized in that, A plurality of air detectors (6) are arranged on the support frame (1) from top to bottom, and each air detector (6) is connected with a control processor.

6. The air detection and replacement device for a grain unloading pit according to claim 5, characterized in that, The pipeline two includes an upper section (13-1), an extension end (13-2) and a lower section (13-3) from top to bottom, a slide rail (17) is vertically arranged on the support frame (1), a drive motor (14) is vertically arranged downward on the top of the support frame (1), a screw rod (15) is connected to the output end of the drive motor (14), a mounting seat (16) is threadedly connected to the screw rod (15), the side of the mounting seat (16) moves in the slide rail (17), the lower section (13-3) is connected with the mounting seat (16), a distance meter (18) is arranged on the top of the mounting seat (16), and the distance meter (18) is connected with a control processor.

7. The air detection and replacement device for a grain unloading pit according to claim 1, characterized in that, The top of the pit (2) is further provided with a plurality of ventilation pipes (19), and the ventilation pipes (19) are connected with the top of the pit (2).

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