Emergency ventilation device for chemical accidents in confined spaces

Abstract

This utility model provides an emergency ventilation device for chemical accidents in confined spaces, relating to the field of emergency ventilation technology. It includes a collector with an exhaust fan fixedly mounted on its front side; four sets of traveling wheels rotatably mounted on the lower sides of the collector; a trapezoidal compartment fixedly mounted inside the collector; a winding frame with a winding wheel rotatably mounted on its top, a rocker arm fixedly mounted on one side of the winding wheel's shaft end, and a flat belt fixedly wound around the winding wheel; the rear end of the collector has a square bucket-shaped structure, with the flat belt connected to the rear end of the collector; and fixing rings are fixedly mounted at equal intervals around the flat belt, with the inner wall of the fixing rings having a threaded structure. This utility model is flexible and efficient in movement: the device can accurately move to the location of a chemical leak through differential steering and forward / reverse rotation control via multiple sets of traveling wheels. Combined with anti-slip tires to enhance stability, it ensures reliable movement in various scenarios, improving operational convenience.

Description

Technical Field

[0001] This utility model belongs to the field of emergency ventilation technology, and more specifically, it relates to an emergency ventilation device for chemical accidents in confined spaces. Background Technology

[0002] In the event of a chemical accident, the generated gases may accumulate in poorly ventilated spaces. In particular, dense inert gases can sink and accumulate, affecting breathing and posing a threat to human health. It is necessary to extract the chemical gases from the confined space to ensure that maintenance or emergency personnel can enter. Generally, a fan-channel structure is used for ventilation.

[0003] Based on the above, using a fixed ventilation structure may be affected in the event of an accident, and it cannot be directly started when a malfunction occurs. Existing ventilation devices are not convenient to be moved for ventilation in a mobile manner to extract gas from the chemical leak location. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an emergency ventilation device for chemical accidents in confined spaces. This addresses the issue that existing ventilation structures mentioned in the background art are susceptible to damage during accidents, may not be able to be directly activated, and are inconvenient to use mobile ventilation methods to extract gas from the chemical leak location.

[0005] The purpose and effectiveness of this utility model's emergency ventilation device for confined space chemical accidents are achieved through the following specific technical means: An emergency ventilation device for chemical accidents in confined spaces includes a collector, with an exhaust fan fixedly installed on the front side of the collector; four sets of traveling wheels rotatably installed on the lower sides of the collector; a trapezoidal compartment fixedly installed inside the lower part of the collector; a winding frame, with a winding wheel rotatably installed on the top of the winding frame, a rocker arm fixedly installed on one side of the shaft end of the winding wheel, and a flat strip fixedly wound on the outside of the winding wheel; the rear end of the collector has a square bucket-shaped structure, and the flat strip is connected to the rear end of the collector; fixing rings are fixedly installed at equal intervals on the outside of the flat strip, and the inner wall of the fixing rings has a threaded structure; and a corrugated pipe, with a threaded structure on the outer bottom of the corrugated pipe, and the bottom of the corrugated pipe is connected to the fixing rings by a threaded connection.

[0006] Furthermore, the top and front sides of the trapezoidal compartment are sloping structures; a battery panel is fixedly installed inside the trapezoidal compartment, and the exhaust fan is connected to the battery panel by a power supply line.

[0007] Furthermore, drive motors are fixedly installed on both sides of the collector at the bottom, and each drive motor provides drive for a set of traveling wheels.

[0008] Furthermore, the outer surface of the fixing ring is provided with a groove, which is embedded in the flat roll and fixedly connected by sealant.

[0009] Furthermore, an output pipe is fixedly installed at the top of the bellows.

[0010] Furthermore, a sealing baffle can be installed inside the fixing ring; the top of the sealing baffle has a circular groove, and a semi-circular ring is rotatably arranged inside the circular groove, which can be laid flat inside the circular groove of the sealing baffle.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This utility model is mobile, flexible and efficient: the equipment can move precisely to the location of a chemical spill by using differential steering and forward and reverse rotation control through multiple sets of traveling wheels. It is equipped with anti-slip tires to enhance stability, ensuring reliable movement in various scenarios and improving the convenience of operation.

[0012] This invention is easy to operate and has a reliable seal: the flat roll forms a complete sealed pipe with the help of the sealing baffle, the installation and disassembly process is simple, and the corrugated pipe can be flexibly adjusted to adapt to changes in position, which not only ensures the sealing of gas collection and transmission, but also simplifies the operation process and facilitates rapid deployment and use.

[0013] This invention provides thorough and safe exhaust: the exhaust fan effectively extracts chemical gases and discharges them through pipes, while simultaneously replenishing outside air to complete ventilation. Combined with real-time monitoring by detection instruments, it ensures that the chemical content is reduced to a safe range, guaranteeing both ventilation effectiveness and operational safety. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the axonal structure of this utility model.

[0016] Figure 3 This is a three-dimensional cross-sectional view of the collector of this utility model.

[0017] Figure 4 This is a schematic diagram of the assembly structure of the corrugated pipe of this utility model.

[0018] Figure 5 This is a schematic diagram of the assembly structure of the sealing baffle of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Collector; 101. Trapezoidal compartment; 102. Solar panel; 2. Exhaust fan; 3. Traveling wheel; 4. Drive motor; 5. Rewinding frame; 501. Rewinding wheel; 502. Rocker arm; 6. Flat tape roll; 7. Fixing ring; 8. Corrugated pipe; 9. Output pipe; 10. Sealing baffle; 1001. Semicircular ring buckle. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0021] Example 1: As attached Figure 1 To be continued Figure 5 As shown: This utility model provides an emergency ventilation device for chemical accidents in confined spaces, including a collector 1, with an exhaust fan 2 fixedly installed on the front side of the collector 1; four sets of traveling wheels 3 rotatably installed on the lower sides of the collector 1; a trapezoidal compartment 101 fixedly installed inside the lower part of the collector 1; a winding frame 5, with a winding wheel 501 rotatably installed on the top of the winding frame 5, a rocker arm 502 fixedly installed on one side of the shaft end of the winding wheel 501, and a flat winding belt 6 fixedly wound on the outside of the winding wheel 501; the rear end of the collector 1 has a square bucket-shaped structure, and the flat winding belt 6 is connected to the rear end of the collector 1; fixing rings 7 are fixedly installed at equal intervals on the outside of the flat winding belt 6, and the inner wall of the fixing rings 7 has a threaded structure; a bellows 8, with a threaded structure on the outer bottom of the bellows 8, and the bottom of the bellows 8 is connected to the fixing rings 7 by a threaded connection.

[0022] The trapezoidal compartment 101 has a sloping structure on the front and back sides of its top; a solar panel 102 is fixedly installed inside the trapezoidal compartment 101, and the exhaust fan 2 is connected to the solar panel 102 by a power supply line.

[0023] Among them, drive motors 4 are fixedly installed on both sides of the lower part of the collector 1, and each drive motor 4 provides drive for a set of traveling wheels 3.

[0024] The fixing ring 7 has a groove on its outside, which is embedded in the flat roll 6 and fixedly connected by sealant.

[0025] An output pipe 9 is fixedly installed at the top of the bellows 8.

[0026] The sealing baffle 10 can be installed inside the fixing ring 7; the top of the sealing baffle 10 is provided with a circular groove, and a semi-circular ring buckle 1001 is rotatably arranged in the circular groove, which can be laid flat in the circular groove of the sealing baffle 10.

[0027] In terms of movement, the motor 4 is driven by remote control to rotate, which in turn drives the travel wheels 3 to rotate, thus enabling the equipment to move. By controlling the working status of the four sets of travel wheels 3, various movement operations can be performed: controlling the four sets of travel wheels 3 to work synchronously enables linear movement; controlling the travel wheels 3 on both sides to rotate at different speeds enables steering through differential speed; controlling the left and right travel wheels 3 to rotate in both directions respectively enables reversal of direction. With the help of these movement functions, the collector 1 can be moved to the location where there is a chemical leak. In the operation of the flat roll 6, a sealing baffle 10 is conventionally installed in the fixing ring 7. The sealing baffle 10 seals the fixing ring 7, enabling the flat roll 6 to form a complete sealed pipe. After the take-up frame 5 is placed in a safe position, the flat roll 6 can be released by stretching the collector 1. When the collector 1 is moved to a suitable position and the flat roll 6 has finished stretching, the sealing baffle 10 in the fixing ring 7 closest to the take-up frame 5 is removed. The semi-circular buckle 1001 is erected, and the sealing baffle 10 is rotated by controlling the semi-circular buckle 1001 to complete the removal of the sealing baffle 10. Afterward, a bellows 8 is installed in this set of fixing rings 7. The bottom of the bellows 8 is fixed in the fixing ring 7 by a threaded connection. Then, the output pipe 9 is moved to a position that facilitates the discharge of chemical gases. During this process, the bellows 8 will adjust its shape to adapt to the position change and maintain the exhaust auxiliary effect. Finally, the exhaust operation is carried out. The exhaust fan 2 is turned on to extract the chemical gas. The chemical gas passes through the bellows 8 and the output pipe 9 and is discharged. At the same time, outside air will be supplied to the chemical gas storage location to complete the ventilation. The leak space is checked by the detection instrument. When the chemical content is detected to have dropped to zero, it means that the ventilation work is completed.

[0028] Example 2: Based on Example 1, the travel wheel 3 adopts a non-slip tire with a corrugated outer structure, which can enhance the stability during travel; Because some chemicals pose a risk of explosion and ignition, and rubber tires may generate static electricity due to friction, wooden tires are used for these chemicals to avoid the risk of explosion and ignition.

[0029] The specific usage and function of this embodiment are as follows: In this utility model, the collector 1 is equipped with a remote control device. When in use, the remote control drives the motor 4 to rotate, which in turn drives the traveling wheel 3 to rotate and move. The traveling wheel 3 is made of anti-slip tires with a corrugated outer structure. By controlling the operation of the four sets of traveling wheels 3, linear movement can be performed. By controlling the different speeds of the traveling wheels 3 on both sides, differential steering can be achieved. By controlling the forward and reverse rotation of the left and right traveling wheels 3, the direction can be reversed. Thus, the collector 1 can be moved to the location where there is a chemical leak by using the traveling wheels 3. A sealing baffle 10 is conventionally installed in the fixing ring 7. The sealing baffle 10 is used to seal the fixing ring 7 so that the flat roll 6 forms a complete sealed pipe. Place the take-up frame 5 in a safe position, and release the flat roll 6 by moving the collector 1 to stretch it. After the collector 1 moves to the appropriate position, the flat roll 6 is fully extended. At this time, remove the sealing baffle 10 in the fixing ring 7 closest to the take-up frame 5, stand up the semi-circular buckle 1001, and control the rotation of the sealing baffle 10 by the semi-circular buckle 1001 to achieve disassembly. Then, install the bellows 8 in the fixed ring 7. The bottom of the bellows 8 is directly fixed in the fixed ring 7 by threaded connection. Then, move the output pipe 9 and place it in a position that is convenient for discharging chemical gases. During this period, the bellows 8 will change to adapt and adjust to maintain the exhaust auxiliary effect. The exhaust fan 2 is activated to extract the chemical gas. The chemical gas passes through the flat conveyor belt 6, the corrugated pipe 8, and the output pipe 9 and is discharged. Outside air is supplied to the chemical gas storage location to complete the ventilation. The leak space is checked by the detection instrument. If the chemical content is detected to have decreased to zero, the ventilation is complete.

Claims

1. Emergency ventilation system for chemical accidents in confined spaces, including: Collector (1), wherein an exhaust fan (2) is fixedly installed on the front side of the collector (1); four sets of travel wheels (3) are rotatably installed on the lower sides of the collector (1); characterized in that a trapezoidal compartment (101) is fixedly installed inside the lower part of the collector (1). A take-up frame (5) is rotatably mounted on top of the take-up frame (5), and a rocker arm (502) is fixedly mounted on one side of the shaft end of the take-up wheel (501). A flat roll (6) is fixedly wound on the outside of the take-up wheel (501). The rear end of the collector (1) is a square bucket-shaped structure, and the flat roll (6) is connected to the rear end of the collector (1). A fixing ring (7) is fixedly mounted at equal intervals on the outside of the flat roll (6), and the inner wall of the fixing ring (7) is a threaded structure. A corrugated pipe (8) is threaded on the outer side of the bottom of the corrugated pipe (8), and the bottom of the corrugated pipe (8) is connected to the fixing ring (7) by a thread.

2. The confined space chemical accident emergency ventilation device as described in claim 1, characterized in that: The top and front sides of the trapezoidal compartment (101) are sloping structures; a battery panel (102) is fixedly installed inside the trapezoidal compartment (101), and the exhaust fan (2) is connected to the battery panel (102) by a power supply line.

3. The confined space chemical accident emergency ventilation device as described in claim 1, characterized in that: The collector (1) has a drive motor (4) fixedly installed on both sides below the inside. Each drive motor (4) provides drive for a set of traveling wheels (3).

4. The confined space chemical accident emergency ventilation device as described in claim 1, characterized in that: The fixing ring (7) has a groove on its outside, which is embedded in the flat roll (6) and fixedly connected by sealant.

5. The confined space chemical accident emergency ventilation device as described in claim 1, characterized in that: An output pipe (9) is fixedly installed at the top of the bellows (8).

6. The confined space chemical accident emergency ventilation device as described in claim 1, characterized in that: The sealing baffle (10) can be installed inside the fixing ring (7); the top of the sealing baffle (10) is provided with a circular groove, and a semi-circular ring buckle (1001) is rotatably arranged in the circular groove, and the semi-circular ring buckle (1001) can be laid flat in the circular groove of the sealing baffle (10).

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