Ventilation device with hydrocarbon gas leakage

Abstract

The utility model discloses a ventilation device for hydrocarbon-containing gas leakage, which relates to the technical field of ventilation of hydrocarbon-containing gas and comprises an exhaust device body, a control panel is arranged in the middle of the rear end of the exhaust device body, and an exhaust port pipeline is arranged in the middle of the front end of the exhaust device body. Gas in the upper space and the lower space in a room can be absorbed through the upper gas inlet channel and the lower gas inlet channel respectively, the device can be suitable for emission of hydrocarbon gas with different densities such as natural gas and liquefied petroleum gas, the use range of the device is expanded, potential safety hazards caused by the fact that gas cannot be exhausted in time due to the gas density difference are effectively avoided, and the service life of the device is prolonged. The coping capacity for different hydrocarbon gas leakage conditions is improved, the smoke suction range of the smoke exhaust pipeline can be controlled to be expanded or narrowed through the pipeline opening and closing assembly, so that the air pressure between the smoke exhaust pipeline and the smoke collecting pipeline is adjusted, and the effectiveness of the ventilation device in the complex environment is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of with hydrocarbon gas leakage ventilation device, it is related to with hydrocarbon gas ventilation technical field, specifically related to a kind of with hydrocarbon gas leakage ventilation device. BACKGROUND

[0002] Most hydrocarbon gases are combustible. The leaked gas forms a combustible mixture in the air, and when it comes into contact with an ignition source such as an open flame or a high-temperature object, it will burn and cause a fire. The ventilation device can timely discharge the leaked gas to the outside, reduce the concentration of indoor gas, and reduce the possibility of forming a combustible mixture, thereby effectively preventing the occurrence of fire. Fire not only destroys the property in the room, but also produces a large amount of toxic and harmful smoke, posing a great threat to the safety of personnel.

[0003] The existing technology has the following problems:

[0004] In daily life and industrial production, hydrocarbon gases such as natural gas and liquefied petroleum gas are widely used. However, if gas leakage occurs and cannot be timely ventilated and diluted, it is easy to cause serious accidents such as explosion, fire and poisoning. The existing gas leakage ventilation device usually has a fixed ventilation position. When dealing with hydrocarbon gases of different densities, the position difference causes the gas to be discharged in a timely manner, resulting in small applicability and use range of hydrocarbon gas discharge. In addition, when facing different external environments, the internal and external pressure difference makes it difficult for the internal gas to be discharged to the outside, resulting in low ventilation effect. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A hydrocarbon gas leakage ventilation device includes an exhaust device main body, a control panel is provided at the rear end of the exhaust device main body, and an exhaust port pipeline is provided at the front end of the exhaust device main body.

[0007] The further improvement of the technical solution of the utility model is that the exhaust device main body includes a device main body, two air inlet channels are provided on the upper and lower sides of the rear end of the device main body, a flow guide pipeline is fixedly connected to the front end of the air inlet channel, a smoke collecting pipeline is fixedly connected to the ends of the two flow guide pipelines away from the air inlet channel, the smoke collecting pipeline is provided on the inside front side of the device main body, the inside of the smoke collecting pipeline is communicated with the exhaust port pipeline, an air inlet fan is fixedly connected to the inside of the air inlet channel, and two mirror-symmetrical airflow anti-reverse plates are fixedly connected to the inside of the connection between the air inlet channel and the flow guide pipeline and the connection between the flow guide pipeline and the smoke collecting pipeline.

[0008] The further improvement of the utility model technical scheme lies in: two air inlet channels are inclined and the rear end is close to the control panel, and the opening of the airflow anti-reverse plate of the two is larger on one side and faces the rear pipeline.

[0009] The further improvement of the utility model technical scheme lies in: the air inlet fan comprises a fan main body, fan filter frames are rotationally connected to the front and rear ends of the fan main body, the outer surfaces of the fan filter frames are fixedly connected to the inner sides of the air inlet channels, and filter screens are fixedly connected to the inner sides of the fan filter frames.

[0010] The further improvement of the utility model technical scheme lies in: the exhaust port pipeline comprises a smoke exhaust pipeline, the rear end of the smoke exhaust pipeline extends to the inner side of the smoke collecting pipeline, the outer surface of the smoke exhaust pipeline is fixedly connected to the front end of the device main body, a smoke exhaust fan is arranged on the inner side of the smoke exhaust pipeline, pipe diameter changing arc blocks are rotationally connected to the left and right sides of the rear end of the smoke exhaust pipeline, the two pipe diameter changing arc blocks can form a cylindrical shape, and a pipe opening and closing assembly is arranged on the middle part of the outer surface of the pipe diameter changing arc block.

[0011] The further improvement of the utility model technical scheme lies in: the radius of the pipe diameter changing arc block is the same as the inner diameter of the smoke exhaust pipeline, and the pipe opening and closing assembly is located on the plane of the rotation points of the pipe diameter changing arc block and the smoke exhaust pipeline.

[0012] The further improvement of the utility model technical scheme lies in: the pipe opening and closing assembly comprises a traction connecting block, one end of the traction connecting block is fixedly connected to the outer surface of the pipe diameter changing arc block, a traction connecting rod is rotationally connected to the end of the traction connecting block away from the pipe diameter changing arc block, a traction driving block is rotationally connected to the end of the traction connecting rod away from the traction connecting block, a transmission threaded rod is fixedly connected to the end of the traction driving block away from the traction connecting rod, a driving rod is threadedly connected to the outer surface of the transmission threaded rod, an opening and closing driving motor is arranged at the end of the driving rod away from the traction driving block, and the outer surface of the opening and closing driving motor is fixedly connected to the inner side of the smoke collecting pipeline.

[0013] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0014] 1、The device can absorb the gas in the upper and lower spaces in the room through the upper and lower air inlet channels, can adapt to the discharge of different density hydrocarbon gases such as natural gas and liquefied petroleum gas, expands the use range of the device, effectively avoids the safety hazards caused by the failure to discharge in time due to the density difference of the gas, improves the response capability to different hydrocarbon gas leakage, gradually increases the flow rate of the entering gas through the airflow anti-reverse plate during the process of discharging the gas, prevents the backflow of the gas, and improves the overall ventilation effect.

[0015] 2, the utility model provides a kind of with hydrocarbon gas leakage ventilation device, by pipeline opening and closing component can control pipeline variable diameter arc block is rotated on smoke exhaust pipe, to expand or reduce the smoke suction range of smoke exhaust pipe, to adjust the air pressure between smoke exhaust pipe and smoke collecting pipe, ensure that internal gas can be smoothly discharged under various air pressure conditions, overcome the defect that ventilation effect is low due to air pressure difference, enhance the effectiveness of ventilation device under complex environment, reduce the risk of gas accumulation accident. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural diagram of the utility model;

[0017] Figure 2 It is the structural diagram of the exhaust device main body of the utility model;

[0018] Figure 3 It is the structural diagram of the intake fan of the utility model;

[0019] Figure 4 It is the structural diagram of the exhaust port pipeline of the utility model;

[0020] Figure 5 It is the structural diagram of the pipeline opening and closing component of the utility model.

[0021] In the drawing: 1, exhaust port pipeline;11, pipeline opening and closing component;111, traction connecting block;112, traction connecting rod;113, traction drive block;114, transmission screw rod;115, drive rod;116, opening and closing drive motor;12, pipeline variable diameter arc block;13, smoke exhaust pipe;14, smoke exhaust fan;2, exhaust device main body;21, air inlet channel;22, intake fan;221, fan filter frame;222, filter screen;223, fan main body;23, air flow anti-reverse plate;24, guide pipeline;25, smoke collecting pipeline;26, device main body;3, control panel. DETAILED DESCRIPTION

[0022] To make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described as follows in combination with specific implementation manners:

[0023] As Figures 1-5 Indicated, the utility model provides a kind of with hydrocarbon gas leakage ventilation device, including exhaust device main body 2, control panel 3 is arranged in the middle of rear end of exhaust device main body 2, exhaust port pipeline 1 is arranged in the middle of front end of exhaust device main body 2, exhaust device main body 2 is device core, carries other components and coordinates work, control panel 3 is used to control operation, exhaust port pipeline 1 is responsible for discharging collected gas, commonly guarantee ventilation device response to hydrocarbon gas leakage.

[0024] Wherein the control panel 3 is prior art, not here to explain.

[0025] As Figure 2 shown, the utility model provides a technical scheme: preferably, exhaust device main part 2 includes device main part 26, and the upper and lower sides of rear end of device main part 26 are all provided with two air inlet channels 21, and the front end of air inlet channel 21 is fixedly connected with flow guide pipe 24, and the end of two flow guide pipes 24 away from air inlet channel 21 is fixedly connected with smoke collecting pipe 25, and smoke collecting pipe 25 is arranged at the inside front side of device main part 26, and the inside of smoke collecting pipe 25 is communicated with exhaust port pipe 1, and the inside of air inlet channel 21 is fixedly connected with air inlet fan 22, and the inside of air inlet channel 21 and flow guide pipe 24 and flow guide pipe 24 and smoke collecting pipe 25 connection place are all fixedly connected with two mirror image symmetrical airflow anti-reverse plates 23.

[0026] As Figure 2 shown, the utility model provides a technical scheme: preferably, two air inlet channels 21 are inclined shape near control panel 3 at rear end, and the side of the opening of two airflow anti-reverse plates 23 of the same position is towards the inside of rear part pipe.

[0027] Device main part 26 provides support as a whole, and the upper and lower air inlet channels 21 cooperate air inlet fan 22 to suck in gas and guide into smoke collecting pipe 25 through flow guide pipe 24 and then to exhaust port pipe 1 to discharge, and airflow anti-reverse plate 23 prevents gas backflow, and inclined air inlet channel 21 is convenient for the gas suction of upper and lower sides.

[0028] As Figure 3 shown, the utility model provides a technical scheme: preferably, air inlet fan 22 includes fan main body 223, and the front and rear ends of fan main body 223 are rotatably connected with fan filter frame 221, and the outer surface of fan filter frame 221 is fixedly connected to the inside of air inlet channel 21, and the inside of fan filter frame 221 is fixedly connected with filter screen 222.

[0029] Fan main body 223 generates suction to suck in air, and fan filter frame 221 is fixed in the inside of air inlet channel 21 and supports filter screen 222, and filter screen 222 filters the impurities in the suction air, and together guarantee the normal and clean operation of air inlet fan 22 to promote the work of ventilation device.

[0030] As Figure 4 shown, the utility model provides a technical scheme: preferably, exhaust port pipe 1 includes smoke exhaust pipe 13, and the rear end of smoke exhaust pipe 13 extends to the inside of smoke collecting pipe 25, and the outer surface of smoke exhaust pipe 13 is fixedly connected to the front end of device main part 26, and smoke exhaust pipe 13 is provided with smoke exhaust fan 14 at the inside, and the left and right sides of rear end of smoke exhaust pipe 13 are rotatably connected with pipe diameter change arc block 12, and two pipe diameter change arc blocks 12 can form a cylindrical shape, and the outer surface of pipe diameter change arc block 12 is provided with pipe opening and closing assembly 11 at the middle part.

[0031] As Figure 4 shown, the utility model provides a technical scheme: preferably, pipeline variable diameter arc block 12 radian is same with smoke exhaust pipeline 13 inner diameter, pipeline opening and closing assembly 11 is located on the plane of rotation point of pipeline variable diameter arc block 12 and smoke exhaust pipeline 13.

[0032] Smoke exhaust pipeline 13 is connected with the outside with smoke collecting pipeline 25, and smoke exhaust fan 14 drives gas exhaust, and pipeline variable diameter arc block 12 cooperates with pipeline opening and closing assembly 11 to change smoke exhaust pipeline 13 caliber to adjust air pressure, and guarantees that gas is effectively exhausted from exhaust port pipeline 1.

[0033] As Figure 5 shown, the utility model provides a technical scheme: preferably, pipeline opening and closing assembly 11 includes traction connecting block 111, one end of traction connecting block 111 is fixedly connected to the outer surface of pipeline variable diameter arc block 12, one end of traction connecting block 111 away from pipeline variable diameter arc block 12 is rotatably connected with traction connecting rod 112, one end of traction connecting rod 112 away from traction connecting block 111 is rotatably connected with traction drive block 113, one end of traction drive block 113 away from traction connecting rod 112 is fixedly connected with transmission screw rod 114, the outer surface of transmission screw rod 114 is threadedly connected with drive rod 115, one end of drive rod 115 away from traction drive block 113 is provided with opening and closing drive motor 116, and the outer surface of opening and closing drive motor 116 is fixedly connected to the inner side of smoke collecting pipeline 25.

[0034] When needing to adjust the caliber of smoke exhaust pipeline, opening and closing drive motor 116 starts, drive rod 115 is rotated, transmission screw rod 114 is moved, traction drive block 113 is moved, traction connecting block 111 is pulled through traction connecting rod 112, and pipeline variable diameter arc block 12 is rotated, so that the caliber of smoke exhaust pipeline 13 is changed to adjust air pressure and ensure that gas is smoothly exhausted.

[0035] The working principle of the device will be described below.

[0036] As Figures 1-5 shown, after the installation of the device is completed, the control panel 3 is opened, so that it is in standby monitoring state, when gas leakage occurs, the air inlet fan 22 of the device starts to work, the fan main body 223 generates suction force, the impurities are filtered through the filter screen 222, the gas is sucked into the gas through the air inlet channel 21, the gas enters the smoke collecting pipeline 25 through the guide pipeline 24, if the internal and external air pressure difference affects the gas exhaust, the opening and closing drive motor 116 will start according to the preset program or sensor feedback, drive rod 115 and other components are moved, pipeline variable diameter arc block 12 is rotated to change the caliber of smoke exhaust pipeline 13 to adjust air pressure, and at the same time, smoke exhaust fan 14 works, the gas in smoke collecting pipeline 25 is exhausted to the outside through smoke exhaust pipeline 13, the ventilation effect is guaranteed, and the safety risk is reduced.

[0037] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A ventilation device for hydrocarbon gas leakage, comprising an exhaust device body (2), characterized in that: The exhaust device body (2) has a control panel (3) at the middle of its rear end and an exhaust port pipe (1) at the middle of its front end. The exhaust device body (2) includes a device body (26). Two air intake channels (21) are opened on the upper and lower sides of the rear end of the device body (26). A guide pipe (24) is fixedly connected to the front end of the air intake channel (21). The ends of the two guide pipes (24) away from the air intake channel (21) are fixedly connected to a smoke collection pipe (25). The smoke collection pipe (25) is located inside the front side of the device body (26). The inside of the smoke collection pipe (25) is connected to the exhaust port pipe (1). An air intake fan (22) is fixedly connected to the inside of the air intake channel (21). Two mirror-symmetrical airflow anti-reverse plates (23) are fixedly connected to the inside of the connection between the air intake channel (21) and the guide pipe (24), and between the guide pipe (24) and the smoke collection pipe (25).

2. The ventilation device for hydrocarbon gas leakage according to claim 1, characterized in that: The two air intake channels (21) are inclined at the rear end near the control panel (3), and the two airflow anti-reverse plates (23) in the same position have their larger openings facing into the rear pipe.

3. A ventilation device for hydrocarbon gas leakage according to claim 2, characterized in that: The intake fan (22) includes a fan body (223), and a fan filter frame (221) is rotatably connected to both the front and rear ends of the fan body (223). The outer surface of the fan filter frame (221) is fixedly connected to the inner side of the intake channel (21), and a filter screen (222) is fixedly connected to the inner side of the fan filter frame (221).

4. A ventilation device for hydrocarbon gas leakage according to claim 1, characterized in that: The exhaust pipe (1) includes a smoke exhaust pipe (13), the rear end of which extends to the inside of the smoke collection pipe (25). The outer surface of the smoke exhaust pipe (13) is fixedly connected to the front end of the main body (26). A smoke exhaust fan (14) is provided inside the smoke exhaust pipe (13). A pipe diameter changing arc block (12) is rotatably connected to the left and right sides of the rear end of the smoke exhaust pipe (13). The two pipe diameter changing arc blocks (12) can form a cylindrical shape. A pipe opening and closing component (11) is provided in the middle of the outer surface of the pipe diameter changing arc block (12).

5. A ventilation device for hydrocarbon gas leakage according to claim 4, characterized in that: The arc of the pipe reducing arc block (12) is the same as the inner diameter of the smoke exhaust pipe (13), and the pipe opening and closing assembly (11) is located on the plane of the rotation point of the pipe reducing arc block (12) and the smoke exhaust pipe (13).

6. A ventilation device for hydrocarbon gas leakage according to claim 5, characterized in that: The pipe opening and closing assembly (11) includes a traction connecting block (111). One end of the traction connecting block (111) is fixedly connected to the outer surface of the pipe diameter changing arc block (12). The end of the traction connecting block (111) away from the pipe diameter changing arc block (12) is rotatably connected to a traction connecting rod (112). The end of the traction connecting rod (112) away from the traction connecting block (111) is rotatably connected to a traction drive block (113). The end of the traction drive block (113) away from the traction connecting rod (112) is fixedly connected to a transmission threaded rod (114). The outer surface of the transmission threaded rod (114) is threadedly connected to a drive rod (115). The end of the drive rod (115) away from the traction drive block (113) is provided with an opening and closing drive motor (116). The outer surface of the opening and closing drive motor (116) is fixedly connected to the inner side of the smoke collection pipe (25).

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