Emergency ventilation vehicle and operation method thereof

Abstract

The invention relates to an emergency ventilation vehicle and an operation method thereof, and belongs to the technical field of emergency equipment. According to the technical scheme, the device comprises a cross-country chassis (1), a frame beam (2), a generator set (3), a jet fan (4) and a position adjusting mechanism (5), the frame beam (2) is arranged on a main beam of the cross-country chassis (1), the generator set (3) is installed on the side, close to a cab, of the frame beam (2), the position adjusting mechanism (5) is installed on the other side of the frame beam (2), and the jet fan (4) is arranged on the position adjusting mechanism (5). The position adjusting mechanism (5) controls the jet fan (4) to horizontally rotate and vertically turn over, the position of the jet fan (4) is adjusted, and the generator set (3) supplies power to the jet fan (4). The device has the positive effects that the device can be used for emergency mobile ventilation operation in closed and semi-closed spaces such as underground pipe galleries and tunnels, and the jet fan can adjust the position of a fan air opening through the position adjusting mechanism to adapt to the complex and changeable environment of a rescue site.

Description

Technical Field

[0001] The invention relates to an emergency ventilation vehicle and an operating method thereof, belonging to the technical field of emergency equipment. Background Art

[0002] As the national urban development has increased the requirements for urban resilience, management efficiency, and urban disaster prevention capabilities, emerging urban areas have explored and developed the construction of underground pipe corridors. With the promotion of underground pipe corridors, there is a demand for special equipment for emergency rescue and accident handling in underground pipe corridors, tunnels and other environments. In the pipe corridor environment, the space is relatively closed, and the air circulation between different corridors depends on the fan system. When encountering temporary power outages, disaster damage, etc., it will not be able to continue to provide air circulation, and when sending fires or toxic gas leaks, it cannot perform prevention and control functions. Therefore, it is particularly important to develop a mobile ventilation equipment that can perform emergency rescue operations.

[0003] Emergency ventilation vehicles can be used for emergency ventilation operations in closed and semi-closed spaces such as underground pipe galleries and tunnels. They can replace the outside air or designated construction gas with the air in the closed space through the air delivery duct to meet the air requirements for the space during emergency rescue operations.

[0004] These functions not only reflect the practicality and necessity of underground corridor construction, but also reflect its important position in modern urban construction. Summary of the invention

[0005] The purpose of the present invention is to provide an emergency ventilation vehicle and an operating method thereof, which adopts an off-road vehicle chassis to carry auxiliary equipment such as a generator set, a jet fan and a flame-retardant wind belt, and is suitable for complex road conditions after a disaster. The self-contained power supply can ensure long-term operation without external power supply. During construction, a variety of flame-retardant wind belts and jet fans can be optionally installed to achieve different paths and different air replacement functions. The jet fan can adjust the direction of the fan air outlet through the installation position adjustment mechanism to adapt to the changing environment of the rescue site and solve the above-mentioned problems existing in the background technology.

[0006] The technical solution of the present invention is: An emergency ventilation vehicle comprises an off-road chassis vehicle, a frame beam, a generator set, a jet fan and a position adjustment mechanism. The frame beam is arranged on the main beam of the off-road chassis vehicle, the generator set is installed on the side of the frame beam close to the cab, and the position adjustment mechanism is installed on the other side. The position adjustment mechanism is provided with a jet fan. The position adjustment mechanism controls the horizontal rotation and vertical flipping of the jet fan to adjust the position of the jet fan. The generator set supplies power to the jet fan.

[0007] Furthermore, the frame beam includes a connecting beam, a load-bearing beam, a rear guard, a fixing frame 1 and a fixing frame 2. The connecting beam and the load-bearing beam are both rectangular frames welded from square tubes. The connecting beam and the load-bearing beam are arranged up and down and welded and fixed. The front and rear sides of the longitudinal square tube of the connecting beam are respectively welded with a fixing frame 1 and a fixing frame 2. The two sides of the main beam of the off-road chassis are respectively connected to the fixing frame 1 and the fixing frame 2 by bolts; a steel plate is laid on the upper part of the load-bearing beam; a generator set is installed at the front end of the frame beam, and a jet fan and a position adjustment mechanism are installed at the rear end; the rear guard is arranged at the tail end of the main beam of the off-road chassis.

[0008] Furthermore, the generator set includes a diesel generator set, a soundproof cover and a control box. A soundproof cover is arranged outside the diesel generator set, and an inspection door is arranged on the soundproof cover. A control box and a rainproof door are arranged on the side of the main driver's seat of the generator set. A tool box is arranged on the side of the co-pilot's seat of the generator set, and a flame-retardant wind duct and / or flame-retardant wind belt are stored inside.

[0009] Furthermore, the position adjustment mechanism includes a telescopic cylinder, a lower mounting platform, a flipping platform, a rotary reducer and a square flange frame. An opening is provided on the steel plate on the rear side of the connecting beam, and the telescopic cylinder is tiltedly arranged at the opening. The cylinder body of the telescopic cylinder is connected to the connecting beam through an ear plate, and the cylinder rod of the telescopic cylinder is connected to the flipping platform through the ear plate. A lower mounting platform is provided under the flipping platform, and the two are rotatably connected through a double ear plate mechanism. The lower mounting platform is fixed on the steel plate at the rear of the frame beam; the upper end surface of the flipping platform is connected to the bottom flange of the rotary reducer through a flange, and the upper flange of the rotary reducer is connected to the bottom flange of the square flange frame, and the jet fan is fixed on the arc frame of the square flange frame. The servo motor drives the rotary reducer to drive the jet fan to rotate horizontally, and the flipping action of the jet fan is realized by the extension and retraction of the telescopic cylinder.

[0010] Furthermore, a horizontal ear plate is provided on the outer side surface of the lower mounting platform, and a vertical ear plate is provided on the outer side surface of the bottom of the flip platform. The horizontal ear plate and the vertical ear plate are connected by a pin shaft to form a double ear plate mechanism, which serves as the rotation center of the flip platform. The jet fan is flipped outwards and exceeds the frame beam through the telescopic cylinder.

[0011] Furthermore, the tail of the off-road chassis vehicle and the rear of the generator set are both provided with a lighting system.

[0012] An operation method of an emergency ventilation vehicle, the steps are as follows: ① The off-road chassis vehicle drives to the designated location of the corridor or tunnel; ② Adjust the jet fan to a suitable position through the position adjustment mechanism; ③ Turn on the jet fan. There are two operating modes when the jet fan is operating. One is to inject air or flame-retardant gas into the corridor or tunnel through the jet fan to form positive pressure to replace the gas in the corridor or tunnel through the air duct; the other is to form negative pressure through reversing suction to extract toxic and harmful gases in the corridor or tunnel to the outside, so as to avoid too high concentration of toxic and harmful gases in the enclosed space of the corridor or tunnel, which endangers the safety of people in the corridor or tunnel.

[0013] After the ventilation vehicle arrives at the designated location, it is determined whether to install a flame retardant wind duct or a flame retardant wind belt according to demand. If installation is required, a flame retardant wind duct or a flame retardant wind belt is laid on the inspection passage beside the road in the corridor or tunnel to form an air duct. The jet fan motor drives the fan blades to form a wind flow, and the air or flame retardant gas is transmitted along the air duct to the designated location of the corridor or tunnel to replace the gas in the corridor or tunnel.

[0014] The positive effects of the present invention are as follows: the present invention can be used for emergency mobile ventilation operations in closed and semi-closed spaces such as underground pipe galleries and tunnels; the jet fan can adjust the position of the fan air outlet through a position adjustment mechanism to adapt to the complex and changeable environment at the rescue site. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an axle side view of the emergency ventilation vehicle of the present invention; Figure 2 is an axonometric view of a frame beam of the present invention; Figure 3 is a front view of the generator set of the present invention; Figure 4 is a front view of the position adjustment mechanism of the present invention; Figure 5 is a cross-sectional view of the position adjustment mechanism of the present invention; Figure 6 is a front view of the emergency ventilation vehicle of the present invention; Figure 7 This is a right side view of the emergency ventilation vehicle of the present invention; In the figure: off-road chassis vehicle 1, frame beam 2, generator set 3, jet fan 4, position adjustment mechanism 5, lighting system; Connecting beam 201, load-bearing beam 202, rear guard 203, fixing frame 1 204, fixing frame 2 205; Diesel generator set 301, silent shield 302, control box 303; Telescopic cylinder 501 , lower mounting platform 502 , horizontal ear plate 5021 , turning platform 503 , vertical ear plate 5031 , rotary reducer 504 , square flange frame 505 . DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: An emergency ventilation vehicle comprises an off-road chassis vehicle 1, a frame beam 2, a generator set 3, a jet fan 4 and a position adjustment mechanism 5. The frame beam 2 is arranged on the main beam of the off-road chassis vehicle 1, the generator set 3 is installed on the side of the frame beam 2 close to the cab, and the position adjustment mechanism 5 is installed on the other side. The position adjustment mechanism 5 is provided with a jet fan 4. The position adjustment mechanism 5 controls the horizontal rotation and vertical flipping of the jet fan 4 to adjust the position of the jet fan 4. The generator set 3 supplies power to the jet fan 4.

[0017] The frame beam 2 includes a connecting beam 201, a load-bearing beam 202, a rear guard 203, a fixing frame 1 204 and a fixing frame 2 205. The connecting beam 201 and the load-bearing beam 202 are both rectangular frames welded from square tubes. The connecting beam 201 and the load-bearing beam 202 are arranged up and down and welded and fixed. The front and rear sides of the longitudinal square tube of the connecting beam 201 are respectively welded with a fixing frame 1 204 and a fixing frame 2 205. The two sides of the main beam of the off-road chassis vehicle 1 are respectively connected to the fixing frame 1 204 and the fixing frame 2 205 by bolts; a steel plate is laid on the upper part of the load-bearing beam 202; a generator set 3 is installed at the front end of the frame beam 2, and a jet fan 4 and a position adjustment mechanism 5 are installed at the rear end; the rear guard 203 is arranged at the tail end of the main beam of the off-road chassis vehicle 1.

[0018] The generator set 3 comprises a diesel generator set 301, a silent shield 302 and a control box 303. The silent shield 302 is arranged outside the diesel generator set 301, and a maintenance door is arranged on the silent shield 302. The generator set 3 is located on the driver's side and is provided with a control box 303 and a rainproof door; the generator set 3 is located on the co-pilot's side and is equipped with a tool box, which stores flame-retardant wind ducts and / or flame-retardant wind belts.

[0019] The position adjustment mechanism 5 comprises a telescopic cylinder 501, a lower mounting platform 502, a tilting platform 503, a rotary reducer 504 and a square flange frame 505. An opening is provided on the steel plate at the rear side of the connecting beam 201, and the telescopic cylinder 501 is tiltedly arranged at the opening. The cylinder body of the telescopic cylinder 501 is connected to the connecting beam 201 through an ear plate. The lever of the telescopic cylinder 501 is connected to the flip platform 503 through an ear plate, and a lower mounting platform 502 is provided below the flip platform 503. The two are rotatably connected through a double ear plate mechanism, and the lower mounting platform 502 is fixed on the steel plate at the rear of the frame beam 2; the upper end surface of the flip platform 503 is connected to the bottom flange of the rotary reducer 504 through a flange, and the upper flange of the rotary reducer 504 is connected to the bottom flange of the square flange frame 505, and the jet fan 4 is fixed on the arc frame of the square flange frame 505. The servo motor drives the rotary reducer 504 to drive the jet fan 4 to rotate horizontally, and the flipping action of the jet fan 4 is realized by the extension and retraction of the telescopic cylinder 501.

[0020] A horizontal ear plate 5021 is provided on the outer side surface of the lower mounting platform 502, and a vertical ear plate 5031 is provided on the outer side surface of the bottom of the flip platform 503. The horizontal ear plate 5021 and the vertical ear plate 5031 are connected by a pin shaft to form a double-ear plate mechanism, which serves as the rotation center of the flip platform 503. The jet fan 4 is flipped outwards through the telescopic cylinder 501 and extends beyond the frame beam 2.

[0021] The tail of the off-road chassis 1 and the rear of the generator set 3 are both provided with a lighting system 6 .

[0022] An operation method of an emergency ventilation vehicle, the steps are as follows: ① The off-road chassis vehicle 1 drives to a designated location in the corridor or tunnel; ② Adjust the jet fan 4 to a suitable position through the position adjustment mechanism 5; ③ Turn on the jet fan 4. There are two operating modes when the jet fan 4 is operating. One is to inject air or flame-retardant gas into the corridor or tunnel through the jet fan 4 to form a positive pressure to replace the gas in the corridor or tunnel through the air duct; the other is to form a negative pressure by reversing the suction to extract the gas in the space, so as to avoid the harm caused by the overflow of toxic and harmful gases, and at the same time transport the toxic and harmful gases to the designated filtering device.

[0023] After the ventilation vehicle arrives at the designated location, it is selected whether to install an air duct according to demand, and a flame retardant air duct or a flame retardant air belt is laid on the inspection passage beside the road in the corridor or tunnel to form an air duct. The flame retardant air duct or the flame retardant air belt is fixed to the air outlet of the jet fan 4 through a clamp, and the motor of the jet fan 4 drives the fan blades to form a wind flow, which transmits the air or flame retardant gas along the air duct to the designated location of the corridor or tunnel, and replaces the gas in the corridor or tunnel.

[0024] See attached Figure 1 , 6 In this embodiment, the off-road chassis vehicle 1 adopts an off-road professional chassis and is equipped with large-pattern tires to ensure that the vehicle has sufficient passability and can pass through damaged roads after a disaster. Figure 2 A frame beam 2 is installed on the off-road chassis 1, and the frame beam 2 is divided into two layers, the top layer is the load-bearing beam 202 bearing layer, and the bottom layer is the connecting beam 201 connecting layer. Lentil pattern steel plates are laid on the load-bearing beam 202 bearing layer. The bearing layer is divided into front and rear ends, and a generator set 3 is installed on the top of the front end; a position adjustment mechanism 5 and a jet fan 4 are installed on the top of the rear end.

[0025] See attached Figure 3The generator set 3 is a multifunctional complex, which is equipped with a diesel generator set 301 inside and a rainproof and dustproof silent shield 302 outside. The silent shield 302 has an access door on the main driving side; a control box 303 is reserved at the lower right corner of the main driving side of the generator set 3, equipped with a rainproof door, and a tool box is configured on the right side of the co-pilot of the generator set 3, which can store flame-retardant wind tubes and / or flame-retardant wind belts.

[0026] The diesel generator set 301, the silent shield 302, the control box 303 and other components are all well-known and commonly used equipment in the art.

[0027] The jet fan 4 is a special fan for emergency ventilation vehicles, which is a well-known and commonly used equipment in the art. It drives the fan blades through a motor to form a wind flow, and transmits the air along the wind tube to a designated location. The jet fan is selected to have the characteristics of large air volume, high wind speed, and high wind pressure. After the wind tube is laid through the inspection passage beside the road to form an air duct, it can effectively promote the flow of air in the narrow corridor. There can be two operating modes during operation. One is to inject air or flame-retardant gas into the tunnel or corridor through the fan to form a positive pressure to replace the gas in the tunnel or corridor through the air duct. The second is to form a negative pressure by reversing the suction to extract the toxic and harmful gases in the corridor or tunnel to the outside world, so as to avoid the concentration of toxic and harmful gases in the enclosed space of the corridor or tunnel being too high, which endangers the safety of people in the corridor or tunnel.

[0028] See attached Figure 4 and 5 The position adjustment mechanism 5 is used to adjust the azimuth angle of the air outlet of the jet fan 4 to adapt to the air outlet direction under different working conditions. The position adjustment mechanism 5 of the present invention has two functional embodiments.

[0029] The position adjustment mechanism 5 comprises a telescopic cylinder 501, a lower mounting platform 502, a flipping platform 503, a rotary reducer 504 and a square flange frame 505. The lower mounting platform 502 is fixedly mounted on the rear end of the bearing layer of the load-bearing beam 202. A square hole is opened on the lentil pattern steel plate on one side of the lower mounting platform 502. The telescopic cylinder 501 is tiltedly arranged in the square hole. The cylinder bottom of the telescopic cylinder 501 is connected to the connecting beam 201 through a double ear plate mechanism. The top of the cylinder rod of the telescopic cylinder 501 is connected to the bottom of the flipping platform 503 through an ear plate and a pin. A lower mounting platform 502 is provided below the flipping platform 503. The two are rotatably connected by connecting ear plates and pins. The upper end surface of the flipping platform 503 is connected to the bottom flange of the rotary reducer 504 through a flange. The upper flange of the rotary reducer 504 is connected to the bottom flange of the square flange frame 505. The jet fan 4 is fixed on the arc frame of the square flange frame 505.

[0030] The turning platform 503 is formed by welding a rectangular frame and a steel plate, and the top of the cylinder rod of the telescopic cylinder 501 is connected to the bottom of the steel plate through an ear plate and a pin. The upper end surface of the steel plate is provided with a flange for connecting with the bottom flange of the rotary reducer 504.

[0031] The width of the flip platform 503 is greater than that of the lower mounting platform 502. A vertical ear plate 5031 is arranged on the outer side of the bottom of the flip platform 503, and a horizontal ear plate 5021 is arranged on the outer side of the lower mounting platform 502. The horizontal ear plate 5021 and the vertical ear plate 5031 are arranged perpendicular to each other and connected by a pin shaft to form a double ear plate mechanism.

[0032] In the first embodiment, the rotary reducer 504 can perform a rotary motion to enable the jet fan 4 to rotate 360 ​​degrees along the rotary axis of the rotary reducer, thereby adjusting the horizontal azimuth inclination angle of the air outlet of the jet fan 4.

[0033] In the second embodiment, the pin shaft in the double-ear plate mechanism is used as the rotation center, and the vertical angle between the jet fan 4 and the frame beam 2 can be changed by the telescopic cylinder 501. Specifically, the lever of the telescopic cylinder 501 is extended to drive the jet fan 4 to turn outward and exceed the frame beam 2, thereby adjusting the vertical azimuth inclination angle of the air outlet of the jet fan 4.

[0034] In this embodiment, the vertical angle change of the jet fan 4 is subject to certain limitations, and its change trajectory is limited by the mechanical structure to avoid interference with its own structure.

[0035] Preferably, in order to ensure that the jet fan 4 rotates along the two rotation axes without interfering with the frame beam 2, a double detection interlocking relationship is provided, and the vertical angle change at different horizontal positions is controlled by sensors.

[0036] The rotary reducer 504 is driven by a servo motor and has the characteristics of high torque and low speed. The rotary reducer 504 with a large speed ratio further reduces the rotary speed of the jet fan 4 to avoid safety accidents. The telescopic cylinder 501 can be an electric cylinder or a hydraulic cylinder. During operation, the electric equipment has a self-provided generator set to provide power. When hydraulic drive is adopted, a small hydraulic station is added in the vehicle.

[0037] The lighting system 6 can be installed on the frame beam 2 and the generator set 3 to achieve multi-angle and wide-range lighting.

Claims

1. An emergency ventilation vehicle, characterized in that: The invention comprises an off-road chassis vehicle (1), a frame beam (2), a generator set (3), a jet fan (4) and a position adjustment mechanism (5), wherein the frame beam (2) is arranged on the main beam of the off-road chassis vehicle (1), the generator set (3) is installed on one side of the frame beam (2) close to the cab, and the position adjustment mechanism (5) is installed on the other side, the jet fan (4) is arranged on the position adjustment mechanism (5), the position adjustment mechanism (5) controls the horizontal rotation and vertical flipping of the jet fan (4) to adjust the position of the jet fan (4), and the generator set (3) supplies power to the jet fan (4).

2. The emergency ventilation vehicle according to claim 1, characterized in that: The frame beam (2) comprises a connecting beam (201), a load-bearing beam (202), a rear guard (203), a fixing frame 1 (204) and a fixing frame 2 (205); the connecting beam (201) and the load-bearing beam (202) are both rectangular frames formed by welding square tubes; the connecting beam (201) and the load-bearing beam (202) are arranged up and down and fixed by welding; the front and rear sides of the longitudinal square tube of the connecting beam (201) are respectively welded with a fixing frame 1 (204) and a fixing frame 2 (205); the two sides of the main beam of the off-road chassis vehicle (1) are respectively connected to the fixing frame 1 (204) and the fixing frame 2 (205) by bolts; a steel plate is laid on the upper part of the load-bearing beam (202); a generator set (3) is installed at the front end of the frame beam (2), and a jet fan (4) and a position adjustment mechanism (5) are installed at the rear end; and the rear guard (203) is arranged at the tail end of the main beam of the off-road chassis vehicle (1).

3. The emergency ventilation vehicle according to claim 2, characterized in that: The generator set (3) comprises a diesel generator set (301), a silent shield (302) and a control box (303); the diesel generator set (301) is provided with a silent shield (302) outside, and a maintenance door is provided on the silent shield (302); the generator set (3) is provided with a control box (303) and a rainproof door on the side of the main driver's seat; the generator set (3) is provided with a tool box on the side of the co-driver's seat, and a flame-retardant wind tube and / or a flame-retardant wind belt is stored inside.

4. The emergency ventilation vehicle according to claim 2, characterized in that: The position adjustment mechanism (5) comprises a telescopic cylinder (501), a lower mounting platform (502), a tilting platform (503), a rotary reducer (504) and a square flange frame (505). An opening is provided on the steel plate at the rear side of the connecting beam (201). The telescopic cylinder (501) is tiltedly arranged at the opening. The cylinder body of the telescopic cylinder (501) is connected to the connecting beam (201) via an ear plate. The cylinder rod of the telescopic cylinder (501) is connected to the turning platform (503) through an ear plate, and a lower mounting platform (502) is provided below the turning platform (503). The two are rotatably connected through a double ear plate mechanism, and the lower mounting platform (502) is fixed to a steel plate at the rear of the frame beam (2); the upper end surface of the turning platform (503) is connected to the bottom flange of a rotary reducer (504) through a flange, and the upper flange of the rotary reducer (504) is connected to the bottom flange of a square flange frame (505). The jet fan (4) is fixed to the arc frame of the square flange frame (505), and the servo motor drives the rotary reducer (504) to drive the jet fan (4) to rotate horizontally, and the turning action of the jet fan (4) is realized by the extension and retraction of the telescopic cylinder (501).

5. The emergency ventilation vehicle according to claim 4, characterized in that: A horizontal ear plate (5021) is provided on the outer side surface of the lower mounting platform (502), and a vertical ear plate (5031) is provided on the outer side surface of the bottom of the flip platform (503). The horizontal ear plate (5021) and the vertical ear plate (5031) are connected by a pin shaft to form a double-ear plate mechanism, which serves as the rotation center of the flip platform (503). The jet fan (4) is flipped outwards through the telescopic cylinder (501) to extend beyond the frame beam (2).

6. An emergency ventilation vehicle according to claim 1 or 4, characterized in that: The tail of the off-road chassis vehicle (1) and the rear of the generator set (3) are both provided with a lighting system (6).

7. The operating method of the emergency ventilation vehicle according to any one of claims 1 to 6, characterized in that: ① The off-road chassis vehicle (1) drives to the designated location of the corridor or tunnel; ② adjusting the jet fan (4) to a suitable position through the position adjustment mechanism (5); ③ Turn on the jet fan (4). When the jet fan (4) is in operation, there are two operating modes: one is to inject air or flame-retardant gas into the corridor or tunnel through the jet fan (4) to form a positive pressure to replace the gas in the corridor or tunnel through the air duct; the other is to form a negative pressure by reversing the suction to extract the toxic and harmful gases in the corridor or tunnel to the outside, so as to avoid the concentration of toxic and harmful gases in the closed space of the corridor or tunnel being too high, which would endanger the safety of people in the corridor or tunnel.

8. The method for operating an emergency ventilation vehicle according to claim 7, characterized in that: A flame retardant wind tube or flame retardant wind belt is laid on the inspection passage beside the road in the corridor or tunnel to form an air duct, and the jet fan (4) motor drives the fan blades to form a wind flow, which transmits air or flame retardant gas along the air duct to a designated location in the corridor or tunnel, thereby replacing the gas in the corridor or tunnel.

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